OpenSSL: Capture peercert/dn in mainline not verify-callback. Bug 1571
[exim.git] / doc / doc-txt / ChangeLog
1 Change log file for Exim from version 4.21
2 -------------------------------------------
5 Exim version 4.86
6 -----------------
7 JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
8 expanded.
10 JH/02 The smtp transport option "multi_domain" is now expanded.
12 JH/03 The smtp transport now requests PRDR by default, if the server offers
13 it.
15 JH/04 Certificate name checking on server certificates, when exim is a client,
16 is now done by default. The transport option tls_verify_cert_hostname
17 can be used to disable this per-host. The build option
20 JH/05 The value of the tls_verify_certificates smtp transport and main options
21 default to the word "system" to access the system default CA bundle.
22 For GnuTLS, only version 3.0.20 or later.
24 JH/06 Verification of the server certificate for a TLS connection is now tried
25 (but not required) by default. The verification status is now logged by
26 default, for both outbound TLS and client-certificate supplying inbound
27 TLS connections
29 JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
30 sites use this now.
32 JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
33 Status Notification (bounce) messages are now MIME format per RFC 3464.
34 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
35 under the control of the dsn_advertise_hosts option, and routers may
36 have a dsn_lasthop option.
38 JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
39 default, modifiable by a malware= option. The list separator for
40 the options can now be changed in the usual way. Bug 68.
42 JH/10 The smtp_receive_timeout main option is now expanded before use.
44 JH/11 The incoming_interface log option now also enables logging of the
45 local interface on delivery outgoing connections.
47 JH/12 The cutthrough-routing facility now supports multi-recipient mails,
48 if the interface and destination host and port all match.
50 JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
51 /defer_ok option.
53 JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
54 Patch from Andrew Lewis.
56 JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
57 now supports optional time-restrictions, weighting, and backup-only
58 modifiers per server. Patch originally by <>.
60 JH/16 The spamd_address main option now supports a mixed list of local
61 and remote servers. Remote servers can be IPv6 addresses, and
62 specify a port-range.
64 JH/17 Bug 68: The spamd_address main option now supports an optional
65 timeout value per server.
67 JH/18 Bug 1581: Router and transport options headers_add/remove can
68 now have the list separator specified.
70 JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
71 option values.
73 JH/20 BUG 1571: Ensure that $tls_in_peerdn is set, when verification fails
74 under OpenSSL.
78 Exim version 4.85
79 -----------------
80 TL/01 When running the test suite, the README says that variables such as
81 no_msglog_check are global and can be placed anywhere in a specific
82 test's script, however it was observed that placement needed to be near
83 the beginning for it to behave that way. Changed the runtest perl
84 script to read through the entire script once to detect and set these
85 variables, reset to the beginning of the script, and then run through
86 the script parsing/test process like normal.
88 TL/02 The BSD's have an arc4random API. One of the functions to induce
89 adding randomness was arc4random_stir(), but it has been removed in
90 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
91 function when detected.
93 JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
94 cause callback expansion.
96 TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
97 syntax errors in an expansion can be treated as a string instead of
98 logging or causing an error, due to the internal use of bool_lax
99 instead of bool when processing it.
101 JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
102 server certificates when making smtp deliveries.
104 JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
106 JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
108 TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
110 TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
111 Merged patch from Sebastian Wiedenroth.
113 JH/05 Fix results-pipe from transport process. Several recipients, combined
114 with certificate use, exposed issues where response data items split
115 over buffer boundaries were not parsed properly. This eventually
116 resulted in duplicates being sent. This issue only became common enough
117 to notice due to the introduction of conection certificate information,
118 the item size being so much larger. Found and fixed by Wolfgang Breyha.
120 JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
121 size buffer was used, resulting in syntax errors when an expansion
122 exceeded it.
124 JH/07 Add support for directories of certificates when compiled with a GnuTLS
125 version 3.3.6 or later.
127 JH/08 Rename the TPDA expermimental facility to Event Actions. The #ifdef
128 is EXPERIMENTAL_EVENT, the main-configuration and transport options
129 both become "event_action", the variables become $event_name, $event_data
130 and $event_defer_errno. There is a new variable $verify_mode, usable in
131 routers, transports and related events. The tls:cert event is now also
132 raised for inbound connections, if the main configuration event_action
133 option is defined.
135 TL/06 In test suite, disable OCSP for old versions of openssl which contained
136 early OCSP support, but no stapling (appears to be less than 1.0.0).
138 JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
139 server certificate names available under the smtp transport option
140 "tls_verify_cert_hostname" now do not permit multi-component wildcard
141 matches.
143 JH/10 Time-related extraction expansions from certificates now use the main
144 option "timezone" setting for output formatting, and are consistent
145 between OpenSSL and GnuTLS compilations. Bug 1541.
147 JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
148 encoded parameter in the incoming message. Bug 1558.
150 JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
151 include certificate info, eximon was claiming there were spoolfile
152 syntax errors.
154 JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
156 JH/14 Log delivery-related information more consistently, using the sequence
157 "H=<name> [<ip>]" wherever possible.
159 TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
160 are problematic for Debian distribution, omit them from the release
161 tarball.
163 JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
165 JH/16 Fix string representation of time values on 64bit time_t anchitectures.
166 Bug 1561.
168 JH/17 Fix a null-indirection in certextract expansions when a nondefault
169 output list separator was used.
172 Exim version 4.84
173 -----------------
174 TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
175 checkers that were complaining about end of non-void function with no
176 return.
178 JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
179 This was a regression intruduced in 4.83 by another bugfix.
181 JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
183 TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
184 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
187 Exim version 4.83
188 -----------------
190 TF/01 Correctly close the server side of TLS when forking for delivery.
192 When a message was received over SMTP with TLS, Exim failed to clear up
193 the incoming connection properly after forking off the child process to
194 deliver the message. In some situations the subsequent outgoing
195 delivery connection happened to have the same fd number as the incoming
196 connection previously had. Exim would try to use TLS and fail, logging
197 a "Bad file descriptor" error.
199 TF/02 Portability fix for building lookup modules on Solaris when the xpg4
200 utilities have not been installed.
202 JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
203 temporary space as the ACL may create new global variables.
205 TL/01 LDAP support uses per connection or global context settings, depending
206 upon the detected version of the libraries at build time.
208 TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
209 to extract and use the src ip:port in logging and expansions as if it
210 were a direct connection from the outside internet. PPv2 support was
211 updated based on HAProxy spec change in May 2014.
213 JH/02 Add ${listextract {number}{list}{success}{fail}}.
215 TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
216 Properly escape header and check for NULL return.
218 PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
219 not dns_use_dnssec.
221 JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
223 TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
224 characters in header names, implemented as a verify condition.
225 Contributed by Michael Fischer v. Mollard.
227 TL/05 Rename SPF condition results err_perm and err_temp to standardized
228 results permerror and temperror. Previous values are deprecated but
229 still accepted. In a future release, err_perm and err_temp will be
230 completely removed, which will be a backward incompatibility if the
231 ACL tests for either of these two old results. Patch contributed by
232 user bes-internal on the mailing list.
234 JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
236 JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
237 selectors, in both main and reject logs.
239 JH/06 Log outbound-TLS and port details, subject to log selectors, for a
240 failed delivery.
242 JH/07 Add malware type "sock" for talking to simple daemon.
244 JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
246 JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
247 routers/transports under cutthrough routing.
249 JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
250 numbers. Touch up "bool" conditional to keep the same definition.
252 TL/06 Remove duplicated language in spec file from 4.82 TL/16.
254 JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
256 JH/12 Expand items in router/transport headers_add or headers_remove lists
257 individually rather than the list as a whole. Bug 1452.
259 Required for reasonable handling of multiple headers_ options when
260 they may be empty; requires that headers_remove items with embedded
261 colons must have them doubled (or the list-separator changed).
263 TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
264 view the policy declared in the DMARC record. Currently, $dmarc_status
265 is a combined value of both the record presence and the result of the
266 analysis.
268 JH/13 Fix handling of $tls_cipher in (non-verify) transport. Bug 1455.
270 JH/14 New options dnssec_request_domains, dnssec_require_domains on the
271 dnslookup router and the smtp transport (applying to the forward
272 lookup).
274 TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
275 of ldap servers used for a specific lookup. Patch provided by Heiko
276 Schlichting.
278 JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
279 New variable $lookup_dnssec_authenticated for observability.
281 TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
282 Patch submitted by Lars Timman.
284 JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
286 TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
287 Requires trusted mode and valid format message id, aborts otherwise.
288 Patch contributed by Heiko Schlichting.
290 JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
291 certextract with support for various fields. Bug 1358.
293 JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
294 is requested by default, modifiable by smtp transport option
295 hosts_request_ocsp.
297 JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
298 operate on certificate variables to give certificate fingerprints
299 Also new ${sha256:cert_variable}.
301 JH/23 The PRDR feature is moved from being Experimental into the mainline.
303 TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
304 Christian Aistleitner.
306 JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
308 TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
309 file. Patch from Wolfgang Breyha.
311 JH/25 Expand the coverage of the delivery $host and $host_address to
312 client authenticators run in verify callout. Bug 1476.
314 JH/26 Port service names are now accepted for tls_on_connect_ports, to
315 align with daemon_smtp_ports. Bug 72.
317 TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
318 support and error reporting did not work properly.
320 TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
321 and is readable. Patch from Andrew Colin Kissa.
323 TL/14 Enhance documentation of ${run expansion and how it parses the
324 commandline after expansion, particularly in the case when an
325 unquoted variable expansion results in an empty value.
327 JH/27 The TLS SNI feature was broken in 4.82. Fix it.
329 PP/02 Fix internal collision of T_APL on systems which support RFC3123
330 by renaming away from it. Addresses GH issue 15, reported by
331 Jasper Wallace.
333 JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
335 TL/15 SECURITY: prevent double expansion in math comparison functions
336 (can expand unsanitized data). Not remotely exploitable.
337 CVE-2014-2972
340 Exim version 4.82
341 -----------------
343 PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
345 PP/02 Make -n do something, by making it not do something.
346 When combined with -bP, the name of an option is not output.
348 PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
349 by GnuTLS.
351 PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
352 $sender_host_name and config options to manage this, and basic check
353 routines.
355 PP/05 DSCP support for outbound connections and control modifier for inbound.
357 PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
358 (Only plugin which currently uses this is kerberos4, which nobody should
359 be using, but we should make it available and other future plugins might
360 conceivably use it, even though it would break NAT; stuff *should* be
361 using channel bindings instead).
363 PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
364 name; added for Sendmail compatibility; requires admin caller.
365 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
366 just ignore it); requires trusted caller.
367 Also parse but ignore: -Ac -Am -X<logfile>
368 Bugzilla 1117.
370 TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
372 TL/02 Add +smtp_confirmation as a default logging option.
374 TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
375 Patch by Magnus Holmgren from 2007-02-20.
377 TL/04 Bugzilla 1281 - Spec typo.
378 Bugzilla 1283 - Spec typo.
379 Bugzilla 1290 - Spec grammar fixes.
381 TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
383 TL/06 Add Experimental DMARC support using libopendmarc libraries.
385 TL/07 Fix an out of order global option causing a segfault. Reported to dev
386 mailing list by by Dmitry Isaikin.
388 JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
390 JH/02 Support "G" suffix to numbers in ${if comparisons.
392 PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
394 NM/01 Bugzilla 1197 - Spec typo
395 Bugzilla 1196 - Spec examples corrections
397 JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
399 PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
400 gnutls_enable_pkcs11, but renamed to more accurately indicate its
401 function.
403 PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
404 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
406 JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
407 "acl {{name}{arg}...}", and optional args on acl condition
408 "acl = name arg..."
410 JH/05 Permit multiple router/transport headers_add/remove lines.
412 JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
414 JH/07 Avoid using a waiting database for a single-message-only transport.
415 Performance patch from Paul Fisher. Bugzilla 1262.
417 JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
418 Bugzilla 884.
420 JH/09 Add $headers_added variable, with content from use of ACL modifier
421 add_header (but not yet added to the message). Bugzilla 199.
423 JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
424 Pulled from Bugzilla 817 by Wolfgang Breyha.
426 PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
427 CVE-2012-5671
428 (nb: this is the same fix as in Exim 4.80.1)
430 JH/11 Add A= logging on delivery lines, and a client_set_id option on
431 authenticators.
433 JH/12 Add optional authenticated_sender logging to A= and a log_selector
434 for control.
436 PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
438 PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
439 advertise SMTP AUTH mechanism to us, instead of a generic
440 protocol violation error. Also, make Exim more robust to bad
441 data from the Dovecot auth socket.
443 TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
445 When a queue runner is handling a message, Exim first routes the
446 recipient addresses, during which it prunes them based on the retry
447 hints database. After that it attempts to deliver the message to
448 any remaining recipients. It then updates the hints database using
449 the retry rules.
451 So if a recipient address works intermittently, it can get repeatedly
452 deferred at routing time. The retry hints record remains fresh so the
453 address never reaches the final cutoff time.
455 This is a fairly common occurrence when a user is bumping up against
456 their storage quota. Exim had some logic in its local delivery code
457 to deal with this. However it did not apply to per-recipient defers
458 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
460 This change adds a proper retry rule check during routing so that the
461 final cutoff time is checked against the message's age. We only do
462 this check if there is an address retry record and there is not a
463 domain retry record; this implies that previous attempts to handle
464 the address had the retry_use_local_parts option turned on. We use
465 this as an approximation for the destination being like a local
466 delivery, as in LMTP.
468 I suspect this new check makes the old local delivery cutoff check
469 redundant, but I have not verified this so I left the code in place.
471 TF/02 Correct gecos expansion when From: is a prefix of the username.
473 Test 0254 submits a message to Exim with the header
475 Resent-From: f
477 When I ran the test suite under the user fanf2, Exim expanded
478 the header to contain my full name, whereas it should have added
479 a Resent-Sender: header. It erroneously treats any prefix of the
480 username as equal to the username.
482 This change corrects that bug.
484 GF/01 DCC debug and logging tidyup
485 Error conditions log to paniclog rather than rejectlog.
486 Debug lines prefixed by "DCC: " to remove any ambiguity.
488 TF/03 Avoid unnecessary rebuilds of lookup-related code.
490 PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
491 Bug spotted by Jeremy Harris; was flawed since initial commit.
492 Would have resulted in OCSP responses post-SNI triggering an Exim
493 NULL dereference and crash.
495 JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
498 Bug detection, analysis and fix by Samuel Thibault.
499 Bugzilla 1331, Debian bug #698092.
501 SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
503 JH/14 SMTP PRDR (
504 Server implementation by Todd Lyons, client by JH.
505 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
506 config variable "prdr_enable" controls whether the server
507 advertises the facility. If the client requests PRDR a new
508 acl_data_smtp_prdr ACL is called once for each recipient, after
509 the body content is received and before the acl_smtp_data ACL.
510 The client is controlled by bolth of: a hosts_try_prdr option
511 on the smtp transport, and the server advertisement.
512 Default client logging of deliveries and rejections involving
513 PRDR are flagged with the string "PRDR".
515 PP/16 Fix problems caused by timeouts during quit ACLs trying to double
516 fclose(). Diagnosis by Todd Lyons.
518 PP/17 Update configure.default to handle IPv6 localhost better.
519 Patch by Alain Williams (plus minor tweaks).
520 Bugzilla 880.
522 PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
523 This is now consistent with GnuTLS, and is now documented: the
524 previous undocumented portable approach to treating the option as
525 unset was to force an expansion failure. That still works, and
526 an empty string is now equivalent.
528 PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
529 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
530 not performing validation itself.
532 PP/20 Added force_command boolean option to pipe transport.
533 Patch from Nick Koston, of cPanel Inc.
535 JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
536 Bugzilla 321, 823.
538 TF/04 Added udpsend ACL modifer and hexquote expansion operator
540 PP/21 Fix eximon continuous updating with timestamped log-files.
541 Broken in a format-string cleanup in 4.80, missed when I repaired the
542 other false fix of the same issue.
543 Report and fix from Heiko Schlichting.
544 Bugzilla 1363.
546 PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
547 Report from Prashanth Katuri.
549 PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
550 It's SecureTransport, so affects any MacOS clients which use the
551 system-integrated TLS libraries, including email clients.
553 PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
554 using a MIME ACL for non-SMTP local injection.
555 Report and assistance in diagnosis by Warren Baker.
557 TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
559 JH/16 Fix comparisons for 64b. Bugzilla 1385.
561 TL/09 Add expansion variable $authenticated_fail_id to keep track of
562 last id that failed so it may be referenced in subsequent ACL's.
564 TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
565 Alexander Miroch.
567 TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
568 ldap library initialization, allowing self-signed CA's to be
569 used. Also properly sets require_cert option later in code by
570 using NULL (global ldap config) instead of ldap handle (per
571 session). Bug diagnosis and testing by alxgomz.
573 TL/12 Enhanced documentation in the script provided in
574 the src/util/ subdirectory.
576 TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
577 renamed to Transport Post Delivery Action by Jeremy Harris, as
580 TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
581 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
582 redis_servers = needs to be configured which will be used by the redis
583 lookup. Patch from Warren Baker, of The Packet Hub.
585 TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
587 TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
588 hostname or reverse DNS when processing a host list. Used suggestions
589 from multiple comments on this bug.
591 TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
593 TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
594 Missed a few lines, added it to make the runtest require no keyboard
595 interaction.
597 TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
598 contains upper case chars. Make router use caseful_local_part.
600 TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
601 support when GnuTLS has been built with p11-kit.
604 Exim version 4.80.1
605 -------------------
607 PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
608 CVE-2012-5671
609 This, or similar/improved, will also be change PP/11 of 4.82.
612 Exim version 4.80
613 -----------------
615 PP/01 Handle short writes when writing local log-files.
616 In practice, only affects FreeBSD (8 onwards).
617 Bugzilla 1053, with thanks to Dmitry Isaikin.
619 NM/01 Bugzilla 949 - Documentation tweak
621 NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
622 improved.
624 NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
626 PP/02 Implemented gsasl authenticator.
628 PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
630 PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
631 `pkg-config foo` for cflags/libs.
633 PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
634 with rest of GSASL and with heimdal_gssapi.
636 PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
637 `pkg-config foo` for cflags/libs for the TLS implementation.
639 PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
640 properties get this fed in as external SSF. A number of robustness
641 and debugging improvements to the cyrus_sasl authenticator.
643 PP/08 cyrus_sasl server now expands the server_realm option.
645 PP/09 Bugzilla 1214 - Log authentication information in reject log.
646 Patch by Jeremy Harris.
648 PP/10 Added dbmjz lookup type.
650 PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
652 PP/12 MAIL args handles TAB as well as SP, for better interop with
653 non-compliant senders.
654 Analysis and variant patch by Todd Lyons.
656 NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
657 Bug report from Lars Müller <> (via SUSE),
658 Patch from Dirk Mueller <>
660 PP/13 tls_peerdn now print-escaped for spool files.
661 Observed some $tls_peerdn in wild which contained \n, which resulted
662 in spool file corruption.
664 PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
665 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
666 or write after TLS renegotiation, which otherwise led to messages
667 "Got SSL error 2".
669 TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
670 as a tracking header (ie: a signed header comes before the signature).
671 Patch from Wolfgang Breyha.
673 JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
674 comma-sep list; embedded commas doubled.
676 JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
678 PP/15 LDAP: Check for errors of TLS initialisation, to give correct
679 diagnostics.
680 Report and patch from Dmitry Banschikov.
682 PP/16 Removed "dont_insert_empty_fragments" fron "openssl_options".
683 Removed SSL_clear() after SSL_new() which led to protocol negotiation
684 failures. We appear to now support TLS1.1+ with Exim.
686 PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
687 lets Exim select keys and certificates based upon TLS SNI from client.
688 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
689 before an outbound SMTP session. New log_selector, +tls_sni.
691 PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
692 NULL dereference. Report and patch from Alun Jones.
694 PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
695 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
696 Not seeing resolver debug output on NetBSD, but suspect this is a
697 resolver implementation change.
699 PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
700 Left warnings. Added "eximon gdb" invocation mode.
702 PP/21 Defaulting "accept_8bitmime" to true, not false.
704 PP/22 Added -bw for inetd wait mode support.
706 PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
707 locate the relevant includes and libraries. Made this the default.
709 PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
710 Bugzilla 1246, report and most of solution from Tomasz Kusy.
712 JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
713 This may cause build issues on older platforms.
715 PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
716 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
717 gnutls_require_mac & gnutls_require_protocols (no longer supported).
718 Added SNI support via GnuTLS too.
719 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
721 PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
723 PP/27 Applied dnsdb SPF support patch from Janne Snabb.
724 Applied second patch from Janne, implementing suggestion to default
725 multiple-strings-in-record handling to match SPF spec.
727 JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
729 PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
730 read-only, out of scope).
731 Patch from Wolfgang Breyha, report from Stuart Northfield.
733 PP/29 Fix three issues highlighted by clang analyser static analysis.
734 Only crash-plausible issue would require the Cambridge-specific
735 iplookup router and a misconfiguration.
736 Report from Marcin Mirosław.
738 PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
740 PP/31 %D in printf continues to cause issues (-Wformat=security), so for
741 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
742 As part of this, removing so much warning spew let me fix some minor
743 real issues in debug logging.
745 PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
746 assignment on my part. Fixed.
748 PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
749 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
750 Janne Snabb (who went above and beyond: thank you).
752 PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
753 string otherwise requires a connection and a bunch more work and it's
754 relatively easy to get wrong. Should also expose TLS library linkage
755 problems.
757 PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
758 64-bit ${eval} (JH/03).
760 PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
761 GNU libc to support some of the 64-bit stuff, should not lead to
762 conflicts. Defined before os.h is pulled in, so if a given platform
763 needs to override this, it can.
765 PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
766 protection layer was required, which is not implemented.
767 Bugzilla 1254, patch from Wolfgang Breyha.
769 PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
770 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
771 tls_dhparam take prime identifiers. Also unbreak combination of
772 OpenSSL+DH_params+TLSSNI.
774 PP/39 Disable SSLv2 by default in OpenSSL support.
777 Exim version 4.77
778 -----------------
780 PP/01 Solaris build fix for Oracle's LDAP libraries.
781 Bugzilla 1109, patch from Stephen Usher.
783 TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
785 TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
786 whitespace trailer
788 TF/02 Fix a couple more cases where we did not log the error message
789 when unlink() failed. See also change 4.74-TF/03.
791 TF/03 Make the exiwhat support code safe for signals. Previously Exim might
792 lock up or crash if it happened to be inside a call to libc when it
793 got a SIGUSR1 from exiwhat.
795 The SIGUSR1 handler appends the current process status to the process
796 log which is later printed by exiwhat. It used to use the general
797 purpose logging code to do this, but several functions it calls are
798 not safe for signals.
800 The new output code in the SIGUSR1 handler is specific to the process
801 log, and simple enough that it's easy to inspect for signal safety.
802 Removing some special cases also simplifies the general logging code.
803 Removing the spurious timestamps from the process log simplifies
804 exiwhat.
806 TF/04 Improved ratelimit ACL condition.
808 The /noupdate option has been deprecated in favour of /readonly which
809 has clearer semantics. The /leaky, /strict, and /readonly update modes
810 are mutually exclusive. The update mode is no longer included in the
811 database key; it just determines when the database is updated. (This
812 means that when you upgrde Exim will forget old rate measurements.)
814 Exim now checks that the per_* options are used with an update mode that
815 makes sense for the current ACL. For example, when Exim is processing a
816 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
817 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
818 must specify per_mail/readonly. If you omit the update mode it defaults to
819 /leaky where that makes sense (as before) or /readonly where required.
821 The /noupdate option is now undocumented but still supported for
822 backwards compatibility. It is equivalent to /readonly except that in
823 ACLs where /readonly is required you may specify /leaky/noupdate or
824 /strict/noupdate which are treated the same as /readonly.
826 A useful new feature is the /count= option. This is a generalization
827 of the per_byte option, so that you can measure the throughput of other
828 aggregate values. For example, the per_byte option is now equivalent
829 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
831 The per_rcpt option has been generalized using the /count= mechanism
832 (though it's more complicated than the per_byte equivalence). When it is
833 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
834 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
835 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
836 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
837 Note that using per_rcpt with a non-readonly update mode in more than
838 one ACL will cause the recipients to be double-counted. (The per_mail
839 and per_byte options don't have this problem.)
841 The handling of very low rates has changed slightly. If the computed rate
842 is less than the event's count (usually one) then this event is the first
843 after a long gap. In this case the rate is set to the same as this event's
844 count, so that the first message of a spam run is counted properly.
846 The major new feature is a mechanism for counting the rate of unique
847 events. The new per_addr option counts the number of different
848 recipients that someone has sent messages to in the last time period. It
849 behaves like per_rcpt if all the recipient addresses are different, but
850 duplicate recipient addresses do not increase the measured rate. Like
851 the /count= option this is a general mechanism, so the per_addr option
852 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
853 example, measure the rate that a client uses different sender addresses
854 with the options per_mail/unique=$sender_address. There are further
855 details in the main documentation.
857 TF/05 Removed obsolete $Cambridge$ CVS revision strings.
859 TF/06 Removed a few PCRE remnants.
861 TF/07 Automatically extract Exim's version number from tags in the git
862 repository when doing development or release builds.
864 PP/02 Raise smtp_cmd_buffer_size to 16kB.
865 Bugzilla 879. Patch from Paul Fisher.
867 PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
868 Heavily based on revision 40f9a89a from Simon Arlott's tree.
869 Bugzilla 97.
871 PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
873 PP/05 Variable $av_failed, true if the AV scanner deferred.
874 Bugzilla 1078. Patch from John Horne.
876 PP/06 Stop make process more reliably on build failure.
877 Bugzilla 1087. Patch from Heiko Schlittermann.
879 PP/07 Make maildir_use_size_file an _expandable_ boolean.
880 Bugzilla 1089. Patch from Heiko Schlittermann.
882 PP/08 Handle ${run} returning more data than OS pipe buffer size.
883 Bugzilla 1131. Patch from Holger Weiß.
885 PP/09 Handle IPv6 addresses with SPF.
886 Bugzilla 860. Patch from Wolfgang Breyha.
888 PP/10 GnuTLS: support TLS 1.2 & 1.1.
889 Bugzilla 1156.
890 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
891 Bugzilla 1095.
893 PP/11 match_* no longer expand right-hand-side by default.
894 New compile-time build option, EXPAND_LISTMATCH_RHS.
895 New expansion conditions, "inlist", "inlisti".
897 PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
899 PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
901 PP/14 fix log_write() format string regression from TF/03.
902 Bugzilla 1152. Patch from Dmitry Isaikin.
905 Exim version 4.76
906 -----------------
908 PP/01 The new ldap_require_cert option would segfault if used. Fixed.
910 PP/02 Harmonised TLS library version reporting; only show if debugging.
911 Layout now matches that introduced for other libraries in 4.74 PP/03.
913 PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
915 PP/04 New "dns_use_edns0" global option.
917 PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
918 Bugzilla 1098.
920 PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
921 nb: Exim is not vulnerable to
923 TK/01 Updated PolarSSL code to 0.14.2.
924 Bugzilla 1097. Patch from Andreas Metzler.
926 PP/07 Catch divide-by-zero in ${eval:...}.
927 Fixes bugzilla 1102.
929 PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
930 Bugzilla 1104.
932 TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
933 format-string attack -- SECURITY: remote arbitrary code execution.
935 TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
936 time unintentionally subject to list matching rules, letting the header
937 cause arbitrary Exim lookups (of items which can occur in lists, *not*
938 arbitrary string expansion). This allowed for information disclosure.
940 PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
941 INT_MIN/-1 -- value coerced to INT_MAX.
944 Exim version 4.75
945 -----------------
947 NM/01 Workround for PCRE version dependency in version reporting
948 Bugzilla 1073
950 TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
951 This fixes portability to compilers other than gcc, notably
952 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
954 TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
955 makefiles for portability to HP-UX and POSIX correctness.
957 PP/01 Permit LOOKUP_foo enabling on the make command-line.
958 Also via indented variable definition in the Makefile.
959 (Debugging by Oliver Heesakkers).
961 PP/02 Restore caching of spamd results with expanded spamd_address.
962 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
964 PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
965 Improves build reliability. Fix from: Frank Elsner
967 NM/02 Fix wide character breakage in the rfc2047 coding
968 Fixes bug 1064. Patch from Andrey N. Oktyabrski
970 NM/03 Allow underscore in dnslist lookups
971 Fixes bug 1026. Patch from Graeme Fowler
973 PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
974 Code patches from Adam Ciarcinski of NetBSD.
976 NM/04 Fixed exiqgrep to cope with mailq missing size issue
977 Fixes bug 943.
979 PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
980 is logged, to avoid truncation. Patch from John Horne.
982 PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
983 Patch from Jakob Hirsch.
985 PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
986 SQL string expansion failure details.
987 Patch from Andrey Oktyabrski.
989 PP/08 Bugzilla 486: implement %M datestamping in log filenames.
990 Patch from Simon Arlott.
992 PP/09 New lookups functionality failed to compile on old gcc which rejects
993 extern declarations in function scope.
994 Patch from Oliver Fleischmann
996 PP/10 Use sig_atomic_t for flags set from signal handlers.
997 Check getgroups() return and improve debugging.
998 Fixed developed for diagnosis in bug 927 (which turned out to be
999 a kernel bug).
1001 PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1002 Patch from Mark Zealey.
1004 PP/12 Bugzilla 1056: Improved spamd server selection.
1005 Patch from Mark Zealey.
1007 PP/13 Bugzilla 1086: Deal with maildir quota file races.
1008 Based on patch from Heiko Schlittermann.
1010 PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1011 Patch from Uwe Doering, sign-off by Michael Haardt.
1013 NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1014 variable declaration deep within a block. Bug and patch from
1015 Dennis Davis.
1017 PP/15 lookups-Makefile IRIX compatibilty coercion.
1019 PP/16 Make DISABLE_DKIM build knob functional.
1021 NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1022 Patch by Simon Arlott
1024 TF/03 Fix valgrind.h portability to C89 compilers that do not support
1025 variable argument macros. Our copy now differs from upstream.
1028 Exim version 4.74
1029 -----------------
1031 TF/01 Failure to get a lock on a hints database can have serious
1032 consequences so log it to the panic log.
1034 TF/02 Log LMTP confirmation messages in the same way as SMTP,
1035 controlled using the smtp_confirmation log selector.
1037 TF/03 Include the error message when we fail to unlink a spool file.
1039 DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1040 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1041 for maintaining out-of-tree patches for some time.
1043 PP/01 Bugzilla 139: Documentation and portability issues.
1044 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1045 Handle per-OS dynamic-module compilation flags.
1047 PP/02 Let /dev/null have normal permissions.
1048 The 4.73 fixes were a little too stringent and complained about the
1049 permissions on /dev/null. Exempt it from some checks.
1050 Reported by Andreas M. Kirchwitz.
1052 PP/03 Report version information for many libraries, including
1053 Exim version information for dynamically loaded libraries. Created
1054 version.h, now support a version extension string for distributors
1055 who patch heavily. Dynamic module ABI change.
1057 PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1058 privilege escalation vulnerability whereby the Exim run-time user
1059 can cause root to append content of the attacker's choosing to
1060 arbitrary files.
1062 PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1063 (Wolfgang Breyha)
1065 PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1066 If dropping privileges for untrusted macros, we disabled normal logging
1067 on the basis that it would fail; for the Exim run-time user, this is not
1068 the case, and it resulted in successful deliveries going unlogged.
1069 Fixed. Reported by Andreas Metzler.
1072 Exim version 4.73
1073 -----------------
1075 PP/01 Date: & Message-Id: revert to normally being appended to a message,
1076 only prepend for the Resent-* case. Fixes regression introduced in
1077 Exim 4.70 by NM/22 for Bugzilla 607.
1079 PP/02 Include check_rfc2047_length in configure.default because we're seeing
1080 increasing numbers of administrators be bitten by this.
1082 JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1084 PP/03 Bugzilla 994: added openssl_options main configuration option.
1086 PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1088 PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
1090 PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1092 PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
1093 without a peer certificate, leading to a segfault because of an
1094 assumption that peers always have certificates. Be a little more
1095 paranoid. Problem reported by Martin Tscholak.
1097 PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
1098 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
1099 NB: ClamAV planning to remove STREAM in "middle of 2010".
1100 CL also introduces -bmalware, various -d+acl logging additions and
1101 more caution in buffer sizes.
1103 PP/09 Implemented reverse_ip expansion operator.
1105 PP/10 Bugzilla 937: provide a "debug" ACL control.
1107 PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
1109 PP/12 Bugzilla 973: Implement --version.
1111 PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
1113 PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
1115 PP/15 Bugzilla 816: support multiple condition rules on Routers.
1117 PP/16 Add bool_lax{} expansion operator and use that for combining multiple
1118 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
1119 ignore trailing whitespace.
1121 JJ/02 prevent non-panic DKIM error from being sent to paniclog
1123 JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
1124 "exim" to be used
1126 PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
1127 Notification from Dr Andrew Aitchison.
1129 PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
1130 ExtendedDetectionInfo response format.
1131 Notification from John Horne.
1133 PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
1134 compatible.
1136 PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
1137 XSL and documented dependency on system catalogs, with examples of how
1138 it normally works.
1140 DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
1141 access.
1143 DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
1144 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
1145 configuration file which is writeable by the Exim user or group.
1147 DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
1148 of configuration files to cover files specified with the -C option if
1149 they are going to be used with root privileges, not just the default
1150 configuration file.
1152 DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
1153 option (effectively making it always true).
1155 DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
1156 files to be used while preserving root privileges.
1158 DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
1159 that rogue child processes cannot use them.
1161 PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
1162 run-time user, instead of root.
1164 PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
1165 Exim run-time user without dropping privileges.
1167 DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
1168 result string, instead of calling string_vformat() twice with the same
1169 arguments.
1172 for other users. Others should always drop root privileges if they use
1173 -C on the command line, even for a whitelisted configure file.
1177 NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
1180 Exim version 4.72
1181 -----------------
1183 JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
1184 $data_path, and $header_path variables; fixed documentation bugs and
1185 typos
1187 JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
1188 exipick to access non-standard spools, including the "frozen" queue
1189 (Finput)
1191 NM/01 Bugzilla 965: Support mysql stored procedures.
1192 Patch from Alain Williams
1194 NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
1196 NM/03 Bugzilla 955: Documentation fix for max_rcpts.
1197 Patch from Andreas Metzler
1199 NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
1200 Patch from Kirill Miazine
1202 NM/05 Bugzilla 671: Added umask to procmail example.
1204 JJ/03 installed exipick 20100323.0, fixing doc bug
1206 NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
1207 directory. Notification and patch from Dan Rosenberg.
1209 TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
1211 TK/02 Improve log output when DKIM signing operation fails.
1213 MH/01 Treat the transport option dkim_domain as a colon separated
1214 list, not as a single string, and sign the message with each element,
1215 omitting multiple occurences of the same signer.
1217 NM/07 Null terminate DKIM strings, Null initialise DKIM variable
1218 Bugzilla 985, 986. Patch by Simon Arlott
1220 NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
1221 Patch by Simon Arlott
1223 PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
1224 MBX locking. Notification from Dan Rosenberg.
1227 Exim version 4.71
1228 -----------------
1230 TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
1232 NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
1234 NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
1236 NM/03 Bugzilla 847: Enable DNSDB lookup by default.
1238 NM/04 Bugzilla 915: Flag broken perl installation during build.
1241 Exim version 4.70
1242 -----------------
1244 TK/01 Added patch by Johannes Berg that expands the main option
1245 "spamd_address" if it starts with a dollar sign.
1247 TK/02 Write list of recipients to X-Envelope-Sender header when building
1248 the mbox-format spool file for content scanning (suggested by Jakob
1249 Hirsch).
1251 TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
1252 ( support via dccifd. Activated by
1253 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
1255 TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
1256 by Mark Daniel Reidel <>.
1258 NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
1259 When building exim an external PCRE library is now needed -
1260 PCRE is a system library on the majority of modern systems.
1261 See entry on PCRE_LIBS in EDITME file.
1263 NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
1264 conversation. Added nologin parameter to request.
1265 Patch contributed by Kirill Miazine.
1267 TF/01 Do not log submission mode rewrites if they do not change the address.
1269 TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
1271 NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
1272 log files in place. Contributed by Roberto Lima.
1274 NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
1276 TF/03 Bugzilla 615: When checking the local_parts router precondition
1277 after a local_part_suffix or local_part_prefix option, Exim now
1278 does not use the address's named list lookup cache, since this
1279 contains cached lookups for the whole local part.
1281 NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
1282 Robert Millan. Documentation is in experimental-spec.txt.
1284 TF/04 Bugzilla 668: Fix parallel build (make -j).
1286 NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
1288 NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
1289 Patch provided by Jan Srzednicki.
1291 TF/05 Leading white space used to be stripped from $spam_report which
1292 wrecked the formatting. Now it is preserved.
1294 TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
1295 that they are available at delivery time.
1297 TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
1299 TF/08 TLS error reporting now respects the incoming_interface and
1300 incoming_port log selectors.
1302 TF/09 Produce a more useful error message if an SMTP transport's hosts
1303 setting expands to an empty string.
1305 NM/06 Bugzilla 744: EXPN did not work under TLS.
1306 Patch provided by Phil Pennock.
1308 NM/07 Bugzilla 769: Extraneous comma in usage fprintf
1309 Patch provided by Richard Godbee.
1311 NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
1312 acl_smtp_notquit, added index entry.
1314 NM/09 Bugzilla 787: Potential buffer overflow in string_format.
1315 Patch provided by Eugene Bujak.
1317 NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
1318 accept(). Patch provided by Maxim Dounin.
1320 NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
1321 Patch provided by Phil Pennock.
1323 NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
1325 NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
1326 Patch provided by Brad "anomie" Jorsch.
1328 NM/14 Bugzilla 622: Added timeout setting to transport filter.
1329 Patch provided by Dean Brooks.
1331 TK/05 Add native DKIM support (does not depend on external libraries).
1333 NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
1334 Patch provided by Graeme Fowler.
1336 NM/16 Bugzilla 851: Documentation example syntax fix.
1338 NM/17 Changed NOTICE file to remove references to embedded PCRE.
1340 NM/18 Bugzilla 894: Fix issue with very long lines including comments in
1341 lsearch.
1343 NM/19 Bugzilla 745: TLS version reporting.
1344 Patch provided by Phil Pennock.
1346 NM/20 Bugzilla 167: bool: condition support.
1347 Patch provided by Phil Pennock.
1349 NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
1350 clients. Patch provided by Phil Pennock.
1352 NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
1353 Patch provided by Brad "anomie" Jorsch.
1355 NM/23 Bugzilla 687: Fix misparses in eximstats.
1356 Patch provided by Heiko Schlittermann.
1358 NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
1359 Patch provided by Heiko Schlittermann.
1361 NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1362 plus update to original patch.
1364 NM/26 Bugzilla 799: Documentation correction for ratelimit.
1366 NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
1367 Patch provided by David Brownlee.
1369 NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
1371 NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
1373 NM/30 Bugzilla 888: TLS documentation bugfixes.
1375 NM/31 Bugzilla 896: Dovecot buffer overrun fix.
1377 NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
1378 Unlike the original bugzilla I have changed all shell scripts in src tree.
1380 NM/33 Bugzilla 898: Transport filter timeout fix.
1381 Patch by Todd Rinaldo.
1383 NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
1384 Patch by Serge Demonchaux.
1386 NM/35 Bugzilla 39: Base64 decode bug fixes.
1387 Patch by Jakob Hirsch.
1389 NM/36 Bugzilla 909: Correct connect() call in dcc code.
1391 NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
1393 NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
1395 NM/39 Bugzilla 911: Fixed MakeLinks build script.
1398 Exim version 4.69
1399 -----------------
1401 TK/01 Add preliminary DKIM support. Currently requires a forked version of
1402 ALT-N's libdkim that I have put here:
1405 Note to Michael Haardt: I had to rename some vars in sieve.c. They
1406 were called 'true' and it seems that C99 defines that as a reserved
1407 keyword to be used with 'bool' variable types. That means you could
1408 not include C99-style headers which use bools without triggering
1409 build errors in sieve.c.
1411 NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
1412 as mailq or other aliases. Changed the --help handling significantly
1413 to do whats expected. exim_usage() emits usage/help information.
1415 SC/01 Added the -bylocaldomain option to eximstats.
1417 NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
1419 NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
1421 NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
1424 Exim version 4.68
1425 -----------------
1427 PH/01 Another patch from the Sieve maintainer.
1429 PH/02 When an IPv6 address is converted to a string for single-key lookup
1430 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
1431 dots are used instead of colons so that keys in lsearch files need not
1432 contain colons. This was done some time before quoting was made available
1433 in lsearch files. However, iplsearch files do require colons in IPv6 keys
1434 (notated using the quote facility) so as to distinguish them from IPv4
1435 keys. This meant that lookups for IP addresses in host lists did not work
1436 for iplsearch lookups.
1438 This has been fixed by arranging for IPv6 addresses to be expressed with
1439 colons if the lookup type is iplsearch. This is not incompatible, because
1440 previously such lookups could never work.
1442 The situation is now rather anomolous, since one *can* have colons in
1443 ordinary lsearch keys. However, making the change in all cases is
1444 incompatible and would probably break a number of configurations.
1446 TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
1447 version.
1449 MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
1450 conversion specification without a maximum field width, thereby enabling
1451 a rogue spamd server to cause a buffer overflow. While nobody in their
1452 right mind would setup Exim to query an untrusted spamd server, an
1453 attacker that gains access to a server running spamd could potentially
1454 exploit this vulnerability to run arbitrary code as the Exim user.
1456 TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
1457 $primary_hostname instead of what libspf2 thinks the hosts name is.
1459 MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
1460 a directory entry by the name of the lookup key. Previously, if a
1461 symlink pointed to a non-existing file or a file in a directory that
1462 Exim lacked permissions to read, a lookup for a key matching that
1463 symlink would fail. Now it is enough that a matching directory entry
1464 exists, symlink or not. (Bugzilla 503.)
1466 PH/03 The body_linecount and body_zerocount variables are now exported in the
1467 local_scan API.
1469 PH/04 Added the $dnslist_matched variable.
1471 PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
1472 This means they are set thereafter only if the connection becomes
1473 encrypted.
1475 PH/06 Added the client_condition to authenticators so that some can be skipped
1476 by clients under certain conditions.
1478 PH/07 The error message for a badly-placed control=no_multiline_responses left
1479 "_responses" off the end of the name.
1481 PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
1483 PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
1484 (without spaces) instead of just copying the configuration text.
1486 PH/10 Added the /noupdate option to the ratelimit ACL condition.
1488 PH/11 Added $max_received_linelength.
1490 PH/12 Added +ignore_defer and +include_defer to host lists.
1492 PH/13 Installed PCRE version 7.2. This needed some changes because of the new
1493 way in which PCRE > 7.0 is built.
1495 PH/14 Implemented queue_only_load_latch.
1497 PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
1498 MAIL command. The effect was to mangle the value on 64-bit systems.
1500 PH/16 Another patch from the Sieve maintainer.
1502 PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
1504 PH/18 If a system quota error occurred while trying to create the file for
1505 a maildir delivery, the message "Mailbox is full" was not appended to the
1506 bounce if the delivery eventually timed out. Change 4.67/27 below applied
1507 only to a quota excession during the actual writing of the file.
1509 PH/19 It seems that peer DN values may contain newlines (and other non-printing
1510 characters?) which causes problems in log lines. The DN values are now
1511 passed through string_printing() before being added to log lines.
1513 PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
1514 and InterBase are left for another time.)
1516 PH/21 Added message_body_newlines option.
1518 PH/22 Guard against possible overflow in moan_check_errorcopy().
1520 PH/23 POSIX allows open() to be a macro; guard against that.
1522 PH/24 If the recipient of an error message contained an @ in the local part
1523 (suitably quoted, of course), incorrect values were put in $domain and
1524 $local_part during the evaluation of errors_copy.
1527 Exim version 4.67
1528 -----------------
1530 MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
1531 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
1532 Jan Srzednicki.
1534 PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
1535 issue a MAIL command.
1537 PH/02 In an ACL statement such as
1539 deny dnslists = X!= : X=
1541 if a client was not listed at all, or was listed with a value other than
1542, in the X list, but was listed with in the Y list,
1543 the condition was not true (as it should be), so access was not denied.
1544 The bug was that the ! inversion was incorrectly passed on to the second
1545 item. This has been fixed.
1547 PH/03 Added additional dnslists conditions == and =& which are different from
1548 = and & when the dns lookup returns more than one IP address.
1550 PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
1551 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
1553 PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
1554 FSYNC, which compiles an option called disable_fsync that allows for
1555 bypassing fsync(). The documentation is heavily laced with warnings.
1557 SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
1559 PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
1560 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
1561 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
1562 including adding "make clean"; (3) Added -fPIC when compiling the test
1563 dynamically loaded module, to get rid of a warning.
1565 MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
1566 message fails, move_frozen_messages = true and ignore_bounce_errors_after
1567 = 0s. The bug is otherwise harmless.
1569 PH/07 There was a bug in the dovecot authenticator such that the value of
1570 $auth1 could be overwritten, and so not correctly preserved, after a
1571 successful authentication. This usually meant that the value preserved by
1572 the server_setid option was incorrect.
1574 PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
1576 PH/09 Installed PCRE release 7.0.
1578 PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
1579 run for batched SMTP input. It is now run at the start of every message
1580 in the batch. While fixing this I discovered that the process information
1581 (output by running exiwhat) was not always getting set for -bs and -bS
1582 input. This is fixed, and it now also says "batched" for BSMTP.
1584 PH/11 Added control=no_pipelining.
1586 PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
1587 patch, slightly modified), and move the expansion of helo_data till after
1588 the connection is made in the smtp transport (so it can use these
1589 values).
1591 PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
1593 PH/14 Added log_selector = +pid.
1595 PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
1597 PH/16 Add ${if forany and ${if forall.
1599 PH/17 Added dsn_from option to vary the From: line in DSNs.
1601 PH/18 Flush SMTP output before performing a callout, unless control =
1602 no_callout_flush is set.
1604 PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
1605 was true (the default) a successful delivery failed to delete the retry
1606 item, thus causing premature timeout of the address. The bug is now
1607 fixed.
1609 PH/20 Added hosts_avoid_pipelining to the smtp transport.
1611 PH/21 Long custom messages for fakedefer and fakereject are now split up
1612 into multiline reponses in the same way that messages for "deny" and
1613 other ACL rejections are.
1615 PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
1616 with slight modification.
1618 PH/23 Applied sieve patches from the maintainer "tracking the latest notify
1619 draft, changing the syntax and factoring some duplicate code".
1621 PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
1622 for deliveries of the second and subsequent messages over the same SMTP
1623 connection.
1625 PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
1626 ${reduce, with only minor "tidies".
1628 SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
1630 PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
1631 expansion side effects.
1633 PH/27 When a message times out after an over-quota error from an Exim-imposed
1634 quota, the bounce message says "mailbox is full". This message was not
1635 being given when it was a system quota that was exceeded. It now should
1636 be the same.
1638 MH/03 Made $recipients available in local_scan(). local_scan() already has
1639 better access to the recipient list through recipients_list[], but
1640 $recipients can be useful in postmaster-provided expansion strings.
1642 PH/28 The $smtp_command and $smtp_command_argument variables were not correct
1643 in the case of a MAIL command with additional options following the
1644 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
1645 were accidentally chopped off.
1647 PH/29 SMTP synchronization checks are implemented when a command is read -
1648 there is a check that no more input is waiting when there shouldn't be
1649 any. However, for some commands, a delay in an ACL can mean that it is
1650 some time before the response is written. In this time, more input might
1651 arrive, invalidly. So now there are extra checks after an ACL has run for
1652 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
1653 pipelining has not been advertised.
1655 PH/30 MH's patch to allow iscntrl() characters to be list separators.
1657 PH/31 Unlike :fail:, a custom message specified with :defer: was not being
1658 returned in the SMTP response when smtp_return_error_details was false.
1659 This has been fixed.
1661 PH/32 Change the Dovecot authenticator to use read() and write() on the socket
1662 instead of the C I/O that was originally supplied, because problems were
1663 reported on Solaris.
1665 PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
1666 Exim which did not show up earlier: it was assuming that a call to
1667 SSL_CTX_set_info_callback() might give an error value. In fact, there is
1668 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
1669 was a macro that became an assignment, so it seemed to work. This has
1670 changed to a proper function call with a void return, hence the compile
1671 error. Exim's code has been fixed.
1673 PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
1674 cpus.
1676 PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
1678 PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
1680 PH/37 If a message is not accepted after it has had an id assigned (e.g.
1681 because it turns out to be too big or there is a timeout) there is no
1682 "Completed" line in the log. When some messages of this type were
1683 selected by exigrep, they were listed as "not completed". Others were
1684 picked up by some special patterns. I have improved the selection
1685 criteria to be more general.
1687 PH/38 The host_find_failed option in the manualroute router can now be set
1688 to "ignore", to completely ignore a host whose IP address cannot be
1689 found. If all hosts are ignored, the behaviour is controlled by the new
1690 host_all_ignored option.
1692 PH/39 In a list of hosts for manualroute, if one item (either because of multi-
1693 homing or because of multiple MX records with /mx) generated more than
1694 one IP address, and the following item turned out to be the local host,
1695 all the secondary addresses of the first item were incorrectly removed
1696 from the list, along with the local host and any following hosts (which
1697 is what is supposed to happen).
1699 PH/40 When Exim receives a message, it writes the login name, uid, and gid of
1700 whoever called Exim into the -H file. In the case of the daemon it was
1701 behaving confusingly. When first started, it used values for whoever
1702 started the daemon, but after a SIGHUP it used the Exim user (because it
1703 calls itself on a restart). I have changed the code so that it now always
1704 uses the Exim user.
1706 PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
1707 message are rejected with the same error (e.g. no authentication or bad
1708 sender address), and a DATA command is nevertheless sent (as can happen
1709 with PIPELINING or a stupid MUA), the error message that was given to the
1710 RCPT commands is included in the rejection of the DATA command. This is
1711 intended to be helpful for MUAs that show only the final error to their
1712 users.
1714 PH/42 Another patch from the Sieve maintainer.
1716 SC/02 Eximstats - Differentiate between permanent and temporary rejects.
1717 Eximstats - Fixed some broken HTML links and added missing column headers
1718 (Jez Hancock).
1719 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
1720 columns for Rejects, Temp Rejects, Ham, and Spam rows.
1722 SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
1724 PH/43 Yet another patch from the Sieve maintainer.
1726 PH/44 I found a way to check for a TCP/IP connection going away before sending
1727 the response to the final '.' that terminates a message, but only in the
1728 case where the client has not sent further data following the '.'
1729 (unfortunately, this is allowed). However, in many cases there won't be
1730 any further data because there won't be any more messages to send. A call
1731 to select() can be used: if it shows that the input is "ready", there is
1732 either input waiting, or the socket has been closed. An attempt to read
1733 the next input character can distinguish the two cases. Previously, Exim
1734 would have sent an OK response which the client would never have see.
1735 This could lead to message repetition. This fix should cure that, at
1736 least in a lot of common cases.
1738 PH/45 Do not advertise STARTTLS in response to HELP unless it would be
1739 advertised in response to EHLO.
1742 Exim version 4.66
1743 -----------------
1745 PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
1746 fixed by 4.65/MH/01 (is this a record?) are fixed:
1748 (i) An empty string was always treated as zero by the numeric comparison
1749 operators. This behaviour has been restored.
1751 (ii) It is documented that the numeric comparison operators always treat
1752 their arguments as decimal numbers. This was broken in that numbers
1753 starting with 0 were being interpreted as octal.
1755 While fixing these problems I realized that there was another issue that
1756 hadn't been noticed. Values of message_size_limit (both the global option
1757 and the transport option) were treated as octal if they started with 0.
1758 The documentation was vague. These values are now always treated as
1759 decimal, and I will make that clear in the documentation.
1762 Exim version 4.65
1763 -----------------
1765 TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
1766 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
1767 versions. (#438)
1769 MH/01 Don't check that the operands of numeric comparison operators are
1770 integers when their expansion is in "skipping" mode (fixes bug
1771 introduced by 4.64-PH/07).
1773 PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
1774 child addresses, Exim now panics and dies. Previously, because the count
1775 is held in a short int, deliveries were likely to be lost. As such a
1776 large number of recipients for a single message is ridiculous
1777 (performance will be very, very poor), I have chosen to impose a limit
1778 rather than extend the field.
1781 Exim version 4.64
1782 -----------------
1784 TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
1785 leftover -K file (the existence of which was triggered by #402).
1786 While we were at it, introduced process PID as part of the -K
1787 filename. This should rule out race conditions when creating
1788 these files.
1790 TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
1791 processing considerably. Previous code took too long for large mails,
1792 triggering a timeout which in turn triggers #401.
1794 TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
1795 in the DK code in transports.c. sendfile() is not really portable,
1796 hence the _LINUX specificness.
1798 TF/01 In the add_headers option to the mail command in an Exim filter,
1799 there was a bug that Exim would claim a syntax error in any
1800 header after the first one which had an odd number of characters
1801 in the field name.
1803 PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
1804 callout verification, Exim cached a "reject" for the entire domain. This
1805 is correct for most verifications, but it is not correct for a recipient
1806 verification with use_sender or use_postmaster set, because in that case
1807 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
1808 case of MAIL FROM:<> rejection from other early rejections (e.g.
1809 rejection of HELO). When verifying a recipient using a non-null MAIL
1810 address, the cache is ignored if it shows MAIL FROM:<> rejection.
1811 Whatever the result of the callout, the value of the domain cache is
1812 left unchanged (for any other kind of callout, getting as far as trying
1813 RCPT means that the domain itself is ok).
1815 PH/02 Tidied a number of unused variable and signed/unsigned warnings that
1816 gcc 4.1.1 threw up.
1818 PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1819 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1820 session, the daemon ignores ECONNECT errors and logs others; it now
1821 ignores EPIPE as well.
1823 PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1824 (quoted-printable decoding).
1826 PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
1827 later the small subsequent patch to fix an introduced bug.
1829 PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1831 PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1833 PH/08 An error is now given if message_size_limit is specified negative.
1835 PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
1836 to be given (somewhat) arbitrary names.
1838 JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1839 in 4.64-PH/09.
1841 JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1842 miscellaneous code fixes
1844 PH/10 Added the log_reject_target ACL modifier to specify where to log
1845 rejections.
1847 PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1848 hostname. This is wrong, because it relates to the incoming message (and
1849 probably the interface on which it is arriving) and not to the outgoing
1850 callout (which could be using a different interface). This has been
1851 changed to use the value of the helo_data option from the smtp transport
1852 instead - this is what is used when a message is actually being sent. If
1853 there is no remote transport (possible with a router that sets up host
1854 addresses), $smtp_active_hostname is used.
1856 PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
1857 tweaks were necessary in order to get it to work (see also 21 below):
1858 (a) The code assumed that strncpy() returns a negative number on buffer
1859 overflow, which isn't the case. Replaced with Exim's string_format()
1860 function.
1861 (b) There were several signed/unsigned issues. I just did the minimum
1862 hacking in of casts. There is scope for a larger refactoring.
1863 (c) The code used strcasecmp() which is not a standard C function.
1864 Replaced with Exim's strcmpic() function.
1865 (d) The code set only $1; it now sets $auth1 as well.
1866 (e) A simple test gave the error "authentication client didn't specify
1867 service in request". It would seem that Dovecot has changed its
1868 interface. Fortunately there's a specification; I followed it and
1869 changed what the client sends and it appears to be working now.
1871 PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1872 decoding.
1874 PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1875 address A is aliased to B and C, where B exists and C does not. Without
1876 -v the output is "A verified" because verification stops after a
1877 successful redirection if more than one address is generated. However,
1878 with -v the child addresses are also verified. Exim was outputting "A
1879 failed to verify" and then showing the successful verification for C,
1880 with its parentage. It now outputs "B failed to verify", showing B's
1881 parentage before showing the successful verification of C.
1883 PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1884 look up a TXT record in a specific list after matching in a combined
1885 list.
1887 PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1888 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1889 they consult the DNS. I had assumed they would set it the way they
1890 wanted; and indeed my experiments on Linux seem to show that in some
1891 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1892 To be on the safe side, however, I have now made the interface to
1893 host_find_byname() similar to host_find_bydns(), with an argument
1894 containing the DNS resolver options. The host_find_byname() function now
1895 sets these options at its start, just as host_find_bydns() does. The smtp
1896 transport options dns_qualify_single and dns_search_parents are passed to
1897 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1898 of host_find_byname() use the default settings of RES_DEFNAMES
1899 (qualify_single) but not RES_DNSRCH (search_parents).
1901 PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1902 spool_read_header() do less string testing, by means of a preliminary
1903 switch on the second character of optional "-foo" lines. (This is
1904 overdue, caused by the large number of possibilities that now exist.
1905 Originally there were few.) While I was there, I also converted the
1906 str(n)cmp tests so they don't re-test the leading "-" and the first
1907 character, in the hope this might squeeze out yet more improvement.
1909 PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1910 flag allowing group syntax was set by the header_syntax check but not
1911 turned off, possible causing trouble later; (2) The flag was not being
1912 set at all for the header_verify test, causing "group"-style headers to
1913 be rejected. I have now set it in this case, and also caused header_
1914 verify to ignore an empty address taken from a group. While doing this, I
1915 came across some other cases where the code for allowing group syntax
1916 while scanning a header line wasn't quite right (mostly, not resetting
1917 the flag correctly in the right place). These bugs could have caused
1918 trouble for malformed header lines. I hope it is now all correct.
1920 PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1921 with the "reply" argument non-NULL. The code, however (which originally
1922 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1923 but it didn't always do it. This confused somebody who was copying the
1924 code for some other use. I have removed all the tests.
1926 PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1927 feature that was used to support insecure browsers during the U.S. crypto
1928 embargo. It requires special client support, and Exim is probably the
1929 only MTA that supported it -- and would never use it because real RSA is
1930 always available. This code has been removed, because it had the bad
1931 effect of slowing Exim down by computing (never used) parameters for the
1932 RSA_EXPORT functionality.
1934 PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1935 authenticator to fail if there's a tab character in the incoming data
1936 (there should never be unless someone is messing about, as it's supposed
1937 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1938 if the connection is using TLS or if the remote IP is the same as the
1939 local IP, and the "valid-client-cert option" if a client certificate has
1940 been verified.
1942 PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
1943 authenticators. This can be used for authorization after authentication
1944 succeeds. (In the case of plaintext, it servers for both authentication
1945 and authorization.)
1947 PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1948 if any retry times were supplied.
1950 PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1951 connection, where there is no client IP address to check. In this
1952 situation, the verify now always succeeds.
1954 PH/25 Applied John Jetmore's -Mset patch.
1956 PH/26 Added -bem to be like -Mset, but loading a message from a file.
1958 PH/27 In a string expansion for a processed (not raw) header when multiple
1959 headers of the same name were present, leading whitespace was being
1960 removed from all of them, but trailing whitespace was being removed only
1961 from the last one. Now trailing whitespace is removed from each header
1962 before concatenation. Completely empty headers in a concatenation (as
1963 before) are ignored.
1965 PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1966 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1968 PH/29 [Removed. This was a change that I later backed out, and forgot to
1969 correct the ChangeLog entry (that I had efficiently created) before
1970 committing the later change.]
1972 PH/30 Exim was sometimes attempting to deliver messages that had suffered
1973 address errors (4xx response to RCPT) over the same connection as other
1974 messages routed to the same hosts. Such deliveries are always "forced",
1975 so retry times are not inspected. This resulted in far too many retries
1976 for the affected addresses. The effect occurred only when there were more
1977 hosts than the hosts_max_try setting in the smtp transport when it had
1978 the 4xx errors. Those hosts that it had tried were not added to the list
1979 of hosts for which the message was waiting, so if all were tried, there
1980 was no problem. Two fixes have been applied:
1982 (i) If there are any address or message errors in an SMTP delivery, none
1983 of the hosts (tried or untried) are now added to the list of hosts
1984 for which the message is waiting, so the message should not be a
1985 candidate for sending over the same connection that was used for a
1986 successful delivery of some other message. This seems entirely
1987 reasonable: after all the message is NOT "waiting for some host".
1988 This is so "obvious" that I'm not sure why it wasn't done
1989 previously. Hope I haven't missed anything, but it can't do any
1990 harm, as the worst effect is to miss an optimization.
1992 (ii) If, despite (i), such a delivery is accidentally attempted, the
1993 routing retry time is respected, so at least it doesn't keep
1994 hammering the server.
1996 PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1997 in ${readsocket because some servers need this prod.
1999 PH/32 Added some extra debug output when updating a wait-xxx database.
2001 PH/33 The hint "could be header name not terminated by colon", which has been
2002 given for certain expansion errors for a long time, was not being given
2003 for the ${if def:h_colon_omitted{... case.
2005 PH/34 The spec says: "With one important exception, whenever a domain list is
2006 being scanned, $domain contains the subject domain." There was at least
2007 one case where this was not true.
2009 PH/35 The error "getsockname() failed: connection reset by peer" was being
2010 written to the panic log as well as the main log, but it isn't really
2011 panic-worthy as it just means the connection died rather early on. I have
2012 removed the panic log writing for the ECONNRESET error when getsockname()
2013 fails.
2015 PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2016 runs only) independently of the message's sender address. This meant
2017 that, if the 4xx error was in fact related to the sender, a different
2018 message to the same recipient with a different sender could confuse
2019 things. In particualar, this can happen when sending to a greylisting
2020 server, but other circumstances could also provoke similar problems.
2021 I have changed the default so that the retry time for these errors is now
2022 based a combination of the sender and recipient addresses. This change
2023 can be overridden by setting address_retry_include_sender=false in the
2024 smtp transport.
2026 PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2027 remote server are returned as part of bounce messages. This was not
2028 happening for LMTP over a pipe (the lmtp transport), but now it is the
2029 same for both kinds of LMTP.
2031 PH/38 Despite being documented as not happening, Exim was rewriting addresses
2032 in header lines that were in fact CNAMEs. This is no longer the case.
2034 PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2035 and queue runs started by the daemon processed all messages. This has
2036 been fixed so that -R and -S can now usefully be given with -q<time>.
2038 PH/40 Import PCRE release 6.7 (fixes some bugs).
2040 PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2042 PH/42 Give an error if -q is specified more than once.
2044 PH/43 Renamed the variables $interface_address and $interface_port as
2045 $received_ip_address and $received_port, to make it clear that these
2046 values apply to message reception, and not to the outgoing interface when
2047 a message is delivered. (The old names remain recognized, of course.)
2049 PH/44 There was no timeout on the connect() call when using a Unix domain
2050 socket in the ${readsocket expansion. There now is.
2052 PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2053 be meaningful with "accept".
2055 SC/01 Eximstats V1.43
2056 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2058 SC/02 Eximstats V1.44
2059 Use a glob alias rather than an array ref in the generated
2060 parser. This improves both readability and performance.
2062 SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2063 Collect SpamAssassin and rejection statistics.
2064 Don't display local sender or destination tables unless
2065 there is data to show.
2066 Added average volumes into the top table text output.
2068 SC/04 Eximstats V1.46
2069 Collect data on the number of addresses (recipients)
2070 as well as the number of messages.
2072 SC/05 Eximstats V1.47
2073 Added 'Message too big' to the list of mail rejection
2074 reasons (thanks to Marco Gaiarin).
2076 SC/06 Eximstats V1.48
2077 Mainlog lines which have GMT offsets and are too short to
2078 have a flag are now skipped.
2080 SC/07 Eximstats V1.49 (Alain Williams)
2081 Added the -emptyok flag.
2083 SC/08 Eximstats V1.50
2084 Fixes for obtaining the IP address from reject messages.
2086 JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2087 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
2088 whitesspace changes from 4.64-PH/27
2090 JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2091 match 4.64-PH/13
2093 JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2094 are found, allow negative numbers in numeric criteria)
2096 JJ/06 exipick.20061117.2, added new $message_body_missing variable
2098 JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
2099 to match changes made in 4.64-PH/43
2101 PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
2103 PH/47 Put in an explicit test for a DNS lookup of an address record where the
2104 "domain" is actually an IP address, and force a failure. This locks out
2105 those revolvers/nameservers that support "A-for-A" lookups, in
2106 contravention of the specifications.
2108 PH/48 When a host name was looked up from an IP address, and the subsequent
2109 forward lookup of the name timed out, the host name was left in
2110 $sender_host_name, contrary to the specification.
2112 PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
2113 restricted to single-key lookups, Exim was not diagnosing an error if
2114 * or *@ was used with a query-style lookup.
2116 PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
2118 MH/01 local_scan ABI version incremented to 1.1. It should have been updated
2119 long ago, but noone interested enough thought of it. Let's just say that
2120 the "1.1" means that there are some new functions that weren't there at
2121 some point in the past.
2123 PH/51 Error processing for expansion failure of helo_data from an smtp
2124 transport during callout processing was broken.
2126 PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
2127 tested/used via the -bh/-bhc/-bs options.
2129 PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
2130 bug, fixed in subsequent PCRE releases).
2132 PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
2133 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
2135 PH/55 Check for a ridiculously long file name in exim_dbmbuild.
2138 Exim version 4.63
2139 -----------------
2141 SC/01 Use a glob alias rather than an array ref in eximstats generated
2142 parser. This improves both readability and performance.
2144 SC/02 Collect SpamAssassin and rejection statistics in eximstats.
2145 Don't display local sender or destination tables in eximstats unless
2146 there is data to show.
2147 Added average volumes into the eximstats top table text output.
2149 SC/03 Collect data on the number of addresses (recipients) as well
2150 as the number of messages in eximstats.
2152 TF/01 Correct an error in the documentation for the redirect router. Exim
2153 does (usually) call initgroups() when daemonizing.
2155 TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
2156 with consistent privilege compared to when running as a daemon.
2158 TF/03 Note in the spec that $authenticated_id is not set for local
2159 submissions from trusted users.
2161 TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
2162 Thanks to Dean Brooks <> for the patch.
2164 TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
2165 by adding some example configuration directives to the default
2166 configuration file. A little bit of work is required to uncomment the
2167 directives and define how usernames and passwords are checked, but
2168 there is now a framework to start from.
2170 PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
2171 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
2172 without this. I don't know how relevant this is to other LDAP libraries.
2174 PH/02 Add the verb name to the "unknown ACL verb" error.
2176 PH/03 Magnus Holmgren's patch for filter_prepend_home.
2178 PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
2180 PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
2181 directory not expanded when it should be if an expanded home directory
2182 was set for the address (which is overridden by the transport).
2184 PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
2185 libradius.
2187 PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
2188 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
2189 because it is too late at that time, and has no effect.
2191 PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
2192 security issue with \' (bugzilla #107). I could not use the
2193 PQescapeStringConn() function, because it needs a PGconn value as one of
2194 its arguments.
2196 PH/08 When testing addresses using -bt, indicate those final addresses that
2197 are duplicates that would not cause an additional delivery. At least one
2198 person was confused, thinking that -bt output corresponded to deliveries.
2199 (Suppressing duplicates isn't a good idea as you lose the information
2200 about possibly different redirections that led to the duplicates.)
2202 PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
2203 systems where poll() doesn't work, in particular OS X.
2205 PH/10 Added more information to debugging output for retry time not reached.
2207 PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
2208 operations in malware.c.
2210 PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
2211 signatures.
2213 PH/13 If write_rejectlog was set false when logging was sent to syslog with
2214 syslog_duplication set false, log lines that would normally be written
2215 both the the main log and to the reject log were not written to syslog at
2216 all.
2218 PH/14 In the default configuration, change the use of "message" in ACL warn
2219 statements to "add_header".
2221 PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
2222 not followed by a command (e.g. "seen endif").
2224 PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
2225 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
2226 latter.
2228 PH/17 Added extra conditions to the default value of delay_warning_condition
2229 so that it is now:
2231 ${if or { \
2232 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
2233 { match{$h_precedence:}{(?i)bulk|list|junk} } \
2234 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
2235 }{no}{yes}}
2237 The Auto-Submitted: and various List- headers are standardised, whereas I
2238 don't think Precedence: ever was.
2240 PH/18 Refactored debugging code in route_finduser() to show more information,
2241 in particular, the error code if getpwnam() issues one.
2243 PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
2244 This is apparently needed in addition to the PH/07 change above to avoid
2245 any possible encoding problems.
2247 PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
2248 but not after initializing Perl.
2250 PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
2251 output them only if debugging. By default they are written stderr,
2252 apparently, which is not desirable.
2254 PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
2255 queries.
2257 JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
2258 --not options
2260 JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
2262 PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
2263 authenticated or an ident call has been made. Suppress the default
2264 values for $authenticated_id and $authenticated_sender (but permit -oMai
2265 and -oMas) when testing with -bh.
2267 PH/24 Re-jigged the order of the tests in the default configuration so that the
2268 tests for valid domains and recipients precede the DNS black list and CSA
2269 tests, on the grounds that those ones are more expensive.
2271 PH/25 Exim was not testing for a space following SMTP commands such as EHLO
2272 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
2273 This bug exists in every version of Exim that I still have, right back to
2274 0.12.
2276 PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
2277 However, an attempt to turn on case-sensitivity in a regex key by
2278 including (?-i) didn't work because the subject string was already
2279 lowercased, and the effects were non-intuitive. It turns out that a
2280 one-line patch can be used to allow (?-i) to work as expected.
2283 Exim version 4.62
2284 -----------------
2286 TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
2287 other effects) broke the use of negated acl sub-conditions.
2289 PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
2290 patch).
2292 PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
2293 "Deny" causes Exim to reject the incoming connection with a 554 error.
2294 Unfortunately, if there is a major crisis, such as a disk failure,
2295 tcp-wrappers gives "deny", whereas what one would like would be some
2296 kind of temporary error. A kludge has been added to help with this.
2297 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
2298 554 error is used if errno is still zero or contains ENOENT (which occurs
2299 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
2300 451 error is used.
2302 PH/03 Add -lutil to the default FreeBSD LIBS setting.
2304 PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
2305 errors. Otherwise a message that provokes a temporary error (when other
2306 messages do not) can cause a whole host to time out.
2308 PH/05 Batch deliveries by appendfile and pipe transports did not work when the
2309 addresses were routed directly to files or pipes from a redirect router.
2310 File deliveries just didn't batch; pipe deliveries might have suffered
2311 odd errors.
2313 PH/06 A failure to get a lock for a hints database would erroneously always say
2314 "Failed to get write lock", even when it was really a read lock.
2316 PH/07 The appendfile transport was creating MBX lock files with a fixed mode
2317 of 0600. This has been changed to use the value of the lockfile_mode
2318 option (which defaults to 0600).
2320 PH/08 Applied small patch from the Sieve maintainer.
2322 PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
2323 folder from quota calculations, a direct delivery into this folder messed
2324 up the contents of the maildirsize file. This was because the regex was
2325 used only to exclude .Trash (or whatever) when the size of the mailbox
2326 was calculated. There was no check that a delivery was happening into an
2327 excluded directory. This bug has been fixed by ignoring all quota
2328 processing for deliveries into excluded directories.
2330 PH/10 Added the maildirfolder_create_regex option to appendfile.
2333 Exim version 4.61
2334 -----------------
2336 PH/01 The code for finding all the local interface addresses on a FreeBSD
2337 system running IPv6 was broken. This may well have applied to all BSD
2338 systems, as well as to others that have similar system calls. The broken
2339 code found IPv4 interfaces correctly, but gave incorrect values for the
2340 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
2341 that it would not match correctly against @[] and not recognize the IPv6
2342 addresses as local.
2344 PH/02 The ipliteral router was not recognizing addresses of the form user@
2345 [ipv6:....] because it didn't know about the "ipv6:" prefix.
2347 PH/03 Added disable_ipv6.
2349 PH/04 Changed $reply_address to use the raw form of the headers instead of the
2350 decoded form, because it is most often used to construct To: headers
2351 lines in autoreplies, and the decoded form may well be syntactically
2352 invalid. However, $reply_address has leading white space removed, and all
2353 newlines turned into spaces so that the autoreply transport does not
2354 grumble.
2356 PH/05 If group was specified without a user on a router, and no group or user
2357 was specified on a transport, the group from the router was ignored.
2359 PH/06 Increased the number of ACL variables to 20 of each type, and arranged
2360 for visible compile-time settings that can be used to change these
2361 numbers, for those that want even more. Backwards compatibility with old
2362 spool files has been maintained. However, going back to a previous Exim
2363 release will lost any variables that are in spool files.
2365 PH/07 Two small changes when running in the test harness: increase delay when
2366 passing a TCP/IP connection to a new process, in case the original
2367 process has to generate a bounce, and remove special handling of
2368 (sic), which is no longer necessary.
2370 PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
2371 be the same on different OS.
2373 PH/09 Moved a debug statement in filter processing to avoid a race problem when
2374 testing.
2376 JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
2377 whether --show-vars was specified or not
2379 JJ/02 exipick: Added support for new ACL variable spool format introduced
2380 in 4.61-PH/06
2382 PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
2383 syntactically invalid From: or Reply-to: line, and a filter used this to
2384 generate an autoreply, and therefore failed to obtain an address for the
2385 autoreply, Exim could try to deliver to a non-existent relative file
2386 name, causing unrelated and misleading errors. What now happens is that
2387 it logs this as a hard delivery error, but does not attempt to create a
2388 bounce message.
2390 PH/11 The exinext utility has a -C option for testing purposes, but although
2391 the given file was scanned by exinext itself; it wasn't being passed on
2392 when Exim was called.
2394 PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
2395 an end-of-file indication when reading a command response.
2397 PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
2398 compiled. In many other places in Exim, IPv6 addresses are always
2399 recognized, so I have changed this. It also means that IPv4 domain
2400 literals of the form [IPV4:n.n.n.n] are now always recognized.
2402 PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
2403 used if the router is not running as root, for example, when verifying at
2404 ACL time, or when using -bh. The debugging output from this situation was
2405 non-existent - all you got was a failure to exec. I have made two
2406 changes:
2408 (a) Failures to set uid/gid, the current directory, or a process leader
2409 in a subprocess such as that created by queryprogram now generate
2410 suitable debugging ouput when -d is set.
2412 (b) The queryprogram router detects when it is not running as root,
2413 outputs suitable debugging information if -d is set, and then runs
2414 the subprocess without attempting to change uid/gid.
2416 PH/15 Minor change to Makefile for building test_host (undocumented testing
2417 feature).
2419 PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
2420 additional section of a DNS packet that returns MX or SRV records.
2421 Instead, it always explicitly searches for A/AAAA records. This avoids
2422 major problems that occur when a DNS server includes only records of one
2423 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
2424 fixed another bug: if SRV records were looked up and the corresponding
2425 address records were *not* found in the additional section, the port
2426 values from the SRV records were lost.
2428 PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
2429 using the correct key (the original address) when searching the retry
2430 rules in order to find which one to use for generating the retry hint.
2432 PH/18 If quota_warn_message contains a From: header, Exim now refrains from
2433 adding the default one. Similarly, if it contains a Reply-To: header, the
2434 errors_reply_to option, if set, is not used.
2436 PH/19 When calculating a retry time, Exim used to measure the "time since
2437 failure" by looking at the "first failed" field in the retry record. Now
2438 it does not use this if it is later than than the arrival time of the
2439 message. Instead it uses the arrival time. This makes for better
2440 behaviour in cases where some deliveries succeed, thus re-setting the
2441 "first failed" field. An example is a quota failure for a huge message
2442 when small messages continue to be delivered. Without this change, the
2443 "time since failure" will always be short, possible causing more frequent
2444 delivery attempts for the huge message than are intended.
2445 [Note: This change was subsequently modified - see PH/04 for 4.62.]
2447 PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
2448 $1, $2, $3) because the numerical variables can be reset during some
2449 expansion items (e.g. "match"), thereby losing the authentication data.
2451 PH/21 Make -bV show the size of off_t variables so that the test suite can
2452 decide whether to run tests for quotas > 2G.
2454 PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
2455 mailbox_size, and mailbox_filecount in the appendfile transport. If a
2456 filecount value is greater than 2G or if a quota value is greater than 2G
2457 on a system where the size of off_t is not greater than 4, a panic error
2458 is given.
2460 PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
2461 never match. The debug and -bh output now contains an explicit error
2462 message indicating a malformed IPv4 address or mask.
2464 PH/24 An host item such as was being treated as the IP address
2465 without a mask. Now it is not recognized as an IP address, and
2466 PH/23 above applies.
2468 PH/25 Do not write to syslog when running in the test harness. The only
2469 occasion when this arises is a failure to open the main or panic logs
2470 (for which there is an explicit test).
2472 PH/26 Added the /no_tell option to "control=freeze".
2474 PH/27 If a host name lookup failed very early in a connection, for example, if
2475 the IP address matched host_lookup and the reverse lookup yielded a name
2476 that did not have a forward lookup, an error message of the form "no IP
2477 address found for host (during SMTP connection from NULL)"
2478 could be logged. Now it outputs the IP address instead of "NULL".
2480 PH/28 An enabling patch from MH: add new function child_open_exim2() which
2481 allows the sender and the authenticated sender to be set when
2482 submitting a message from within Exim. Since child_open_exim() is
2483 documented for local_scan(), the new function should be too.
2485 PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
2486 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
2487 results in an empty string is now treated as unset.
2489 PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
2491 PH/31 Added sender_verify_fail logging option.
2493 PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
2494 needed by RFC 822 but not by RFC 2822 was commented out. I have now
2495 tidied the source and removed it altogether.
2497 PH/33 When a queue run was abandoned because the load average was too high, a
2498 log line was always written; now it is written only if the queue_run log
2499 selector is set. In addition, the log line for abandonment now contains
2500 information about the queue run such as the pid. This is always present
2501 in "start" and "stop" lines but was omitted from the "abandon" line.
2503 PH/34 Omit spaces between a header name and the colon in the error message that
2504 is given when verify = headers_syntax fails (if there are lots of them,
2505 the message gets confusing).
2507 PH/35 Change the default for dns_check_names_pattern to allow slashes within
2508 names, as there are now some PTR records that contain slashes. This check
2509 is only to protect against broken name servers that fall over on strange
2510 characters, so the fact that it applies to all lookups doesn't matter.
2512 PH/36 Now that the new test suite is complete, we can remove some of the
2513 special code in Exim that was needed for the old test suite. For example,
2514 sorting DNS records because real resolvers return them in an arbitrary
2515 order. The new test suite's fake resolver always returns records in the
2516 same order.
2518 PH/37 When running in the test harness, use -odi for submitted messages (e.g.
2519 bounces) except when queue_only is set, to avoid logging races between
2520 the different processes.
2522 PH/38 Panic-die if .include specifies a non-absolute path.
2524 PH/39 A tweak to the "H" retry rule from its user.
2526 JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
2527 a label. They prevented compilation on older perls.
2529 JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
2530 a warning to be raised on newish perls.
2532 JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
2533 on queue. Changes to match documented behaviour of showing count of
2534 messages matching specified criteria.
2536 PH/40 Changed the default ident timeout from 30s to 5s.
2538 PH/41 Added support for the use of login_cap features, on those BSD systems
2539 that have them, for controlling the resources used by pipe deliveries.
2541 PH/42 The content-scanning code uses fopen() to create files in which to put
2542 message data. Previously it was not paying any attention to the mode of
2543 the files. Exim runs with umask(0) because the rest of the code creates
2544 files with open(), and sets the required mode explicitly. Thus, these
2545 files were ending up world-writeable. This was not a big issue, because,
2546 being within the spool directory, they were not world-accessible. I have
2547 created a function called modefopen, which takes an additional mode
2548 argument. It sets umask(777), creates the file, chmods it to the required
2549 mode, then resets the umask. All the relevant calls to fopen() in the
2550 content scanning code have been changed to use this function.
2552 PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
2553 to 24 hours. This avoids potential overflow problems when processing G
2554 and H retry rules. I suspect nobody ever tinkers with this value.
2556 PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
2558 PH/45 When the plaintext authenticator is running as a client, the server's
2559 challenges are checked to ensure they are valid base64 strings. By
2560 default, the authentication attempt is cancelled if an invalid string is
2561 received. Setting client_ignore_invalid_base64 true ignores these errors.
2562 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
2563 they are received. Thus, the responses can be made to depend on the
2564 challenges. If an invalid string is ignored, an empty string is placed in
2565 the variable.
2567 PH/46 Messages that are created by the autoreply transport now contains a
2568 References: header, in accordance with RFCs 2822 and 3834.
2570 PH/47 Added authenticated_sender_force to the smtp transport.
2572 PH/48 The ${prvs expansion was broken on systems where time_t was long long.
2574 PH/49 Installed latest patch from the Sieve maintainer.
2576 PH/50 When an Exim quota was set without a file count quota, and mailbox_size
2577 was also set, the appendfile transport was unnecessarily scanning a
2578 directory of message files (e.g. for maildir delivery) to find the count
2579 of files (along with the size), even though it did not need this
2580 information. It now does the scan only if it needs to find either the
2581 size of the count of files.
2583 PH/51 Added ${time_eval: to convert Exim time strings into seconds.
2585 PH/52 Two bugs concerned with error handling when the smtp transport is
2586 used in LMTP mode:
2588 (i) Exim was not creating retry information for temporary errors given
2589 for individual recipients after the DATA command when the smtp transport
2590 was used in LMTP mode. This meant that they could be retried too
2591 frequently, and not timed out correctly.
2593 (ii) Exim was setting the flag that allows error details to be returned
2594 for LMTP errors on RCPT commands, but not for LMTP errors for individual
2595 recipients that were returned after the DATA command.
2597 PH/53 This is related to PH/52, but is more general: for any failing address,
2598 when detailed error information was permitted to be returned to the
2599 sender, but the error was temporary, then after the final timeout, only
2600 "retry timeout exceeded" was returned. Now it returns the full error as
2601 well as "retry timeout exceeded".
2603 PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
2604 do this, and (what is worse) MTAs that accept it.
2606 PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
2607 will now be deprecated.
2609 PH/56 New os.c-cygwin from the Cygwin maintainer.
2611 JJ/06 exipick: added --unsorted option to allow unsorted output in all output
2612 formats (previously only available in exim formats via -bpr, -bpru,
2613 and -bpra. Now also available in native and exiqgrep formats)
2615 JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
2616 with very large, slow to parse queues
2618 JJ/08 exipick: added ! as generic prefix to negate any criteria format
2620 JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
2622 PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
2623 responses to authentication challenges, though it was showing the
2624 challenges; (ii) I've removed the CR characters from the debug output for
2625 SMTP output lines.
2627 PH/58 Allow for the insertion of a newline as well as a space when a string
2628 is turned into more than one encoded-word during RFC 2047 encoding. The
2629 Sieve code now uses this.
2631 PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
2632 data_4xx, lost_connection, tls_required.
2634 PH/60 When a VRFY deferred or FAILED, the log message rather than the user
2635 message was being sent as an SMTP response.
2637 PH/61 Add -l and -k options to exicyclog.
2639 PH/62 When verifying, if an address was redirected to one new address, so that
2640 verification continued, and the new address failed or deferred after
2641 having set something in $address_data, the value of $address_data was not
2642 passed back to the ACL. This was different to the case when no
2643 redirection occurred. The value is now passed back in both cases.
2645 PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
2646 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
2647 use login_cap.h, so on its own it isn't the distinguishing feature. The
2648 new name refers directly to the setclassresources() function.
2650 PH/65 Added configuration files for NetBSD3.
2652 PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
2654 PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
2655 is preferred over IPv4.
2657 PH/68 The bounce_return_message and bounce_return_body options were not being
2658 honoured for bounces generated during the reception of non-SMTP messages.
2659 In particular, this applied to messages rejected by the ACL. This bug has
2660 been fixed. However, if bounce_return_message is true and bounce_return_
2661 body is false, the headers that are returned for a non-SMTP message
2662 include only those that have been read before the error was detected.
2663 (In the case of an ACL rejection, they have all been read.)
2665 PH/69 The HTML version of the specification is now built in a directory called
2666 spec_html instead of spec.html, because the latter looks like a path with
2667 a MIME-type, and this confuses some software.
2669 PH/70 Catch two compiler warnings in sieve.c.
2671 PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
2672 function verify_get_ident() calls ip_connect() to connect a socket, but
2673 if the "connect()" function timed out, ip_connect() used to close the
2674 socket. However, verify_get_ident() also closes the socket later, and in
2675 between Exim writes to the log, which may get opened at this point. When
2676 the socket was closed in ip_connect(), the log could get the same file
2677 descriptor number as the socket. This naturally causes chaos. The fix is
2678 not to close the socket in ip_connect(); the socket should be closed by
2679 the function that creates it. There was only one place in the code where
2680 this was missing, in the iplookup router, which I don't think anybody now
2681 uses, but I've fixed it anyway.
2683 PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
2684 well as to direct DNS lookups. Otherwise the handling of names in host
2685 lists is inconsistent and therefore confusing.
2688 Exim version 4.60
2689 -----------------
2691 PH/01 Two changes to the default runtime configuration:
2693 (1) Move the checks for relay_from_hosts and authenticated clients from
2694 after to before the (commented out) DNS black list checks.
2696 (2) Add control=submission to the relay_from_hosts and authenticated
2697 clients checks, on the grounds that messages accepted by these
2698 statements are most likely to be submissions.
2700 PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
2702 (1) Generate an error if the third argument for the ${prvs expansion is
2703 not a single digit.
2705 (2) Treat a missing third argument of ${prvscheck as if it were an empty
2706 string.
2708 (3) Reset the variables that are obtained from the first argument of
2709 ${prvscheck and used in the second argument before leaving the code,
2710 because their memory is reclaimed, so using them afterwards may do
2711 silly things.
2713 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
2714 one (it's much easier than Tom thought :-).
2716 (5) Because of (4), we can now allow for the use of $prvscheck_result
2717 inside the third argument.
2719 PH/03 For some reason, the default setting of PATH when running a command from
2720 a pipe transport was just "/usr/bin". I have changed it to
2721 "/bin:/usr/bin".
2724 anything to be listed in the output from -bV.
2726 PH/05 When a filter generated an autoreply, the entire To: header line was
2727 quoted in the delivery log line, like this:
2729 => >A.N.Other <ano@some.domain> <original@ddress> ...
2731 This has been changed so that it extracts the operative address. There
2732 may be more than one such address. If so, they are comma-separated, like
2733 this:
2735 => >ano@some.domain,ona@other.domain <original@ddress> ...
2737 PH/06 When a client host used a correct literal IP address in a HELO or EHLO
2738 command, (for example, EHLO []) and the client's IP address was
2739 not being looked up in the rDNS to get a host name, Exim was showing the
2740 IP address twice in Received: lines, even though the IP addresses were
2741 identical. For example:
2743 Received: from [] (helo=[])
2745 However, if the real host name was known, it was omitting the HELO data
2746 if it matched the actual IP address. This has been tidied up so that it
2747 doesn't show the same IP address twice.
2749 PH/07 When both +timestamp and +memory debugging was on, the value given by
2750 $tod_xxx expansions could be wrong, because the tod_stamp() function was
2751 called by the debug printing, thereby overwriting the timestamp buffer.
2752 Debugging no longer uses the tod_stamp() function when +timestamp is set.
2754 PH/08 When the original message was included in an autoreply transport, it
2755 always said "this is a copy of the message, including all the headers",
2756 even if body_only or headers_only was set. It now gives an appropriate
2757 message.
2759 PH/09 Applied a patch from the Sieve maintainer which:
2761 o fixes some comments
2762 o adds the (disabled) notify extension core
2763 o adds some debug output for the result of if/elsif tests
2764 o points to the current vacation draft in the documentation
2765 and documents the missing references header update
2767 and most important:
2769 o fixes a bug in processing the envelope test (when testing
2770 multiple envelope elements, the last element determinted the
2771 result)
2773 PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
2774 Electronic Mail") by including:
2776 Auto-submitted: auto-generated
2778 in the messages that it generates (bounce messages and others, such as
2779 warnings). In the case of bounce messages for non-SMTP mesages, there was
2780 also a typo: it was using "Auto_submitted" (underscore instead of
2781 hyphen). Since every message generated by Exim is necessarily in response
2782 to another message, thes have all been changed to:
2784 Auto-Submitted: auto-replied
2786 in accordance with these statements in the RFC:
2788 The auto-replied keyword:
2790 - SHOULD be used on messages sent in direct response to another
2791 message by an automatic process,
2793 - MUST NOT be used on manually-generated messages,
2795 - MAY be used on Delivery Status Notifications (DSNs) and Message
2796 Disposition Notifications (MDNs),
2798 - MUST NOT be used on messages generated by automatic or periodic
2799 processes, except for messages which are automatic responses to
2800 other messages.
2802 PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
2803 to the default Received: header definition.
2805 PH/12 Added log selector acl_warn_skipped (default on).
2807 PH/13 After a successful wildlsearch lookup, discard the values of numeric
2808 variables because (a) they are in the wrong storage pool and (b) even if
2809 they were copied, it wouldn't work properly because of the caching.
2811 PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
2812 checking when decoding. Apparently there are clients that generate
2813 overlong encoded strings. Why am I not surprised?
2815 PH/15 If the first argument of "${if match_address" was not empty, but did not
2816 contain an "@" character, Exim crashed. Now it writes a panic log message
2817 and treats the condition as false.
2819 PH/16 In autoreply, treat an empty string for "once" the same as unset.
2821 PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2822 extension "envelope-auth". The code is finished and in agreement with
2823 other implementations, but there is no documentation so far and in fact,
2824 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2825 not changing the active code.
2827 Print executed "if" and "elsif" statements when debugging is used. This
2828 helps a great deal to understand what a filter does.
2830 Document more things not specified clearly in RFC3028. I had all this
2831 sorted out, when out of a sudden new issues came to my mind. Oops."
2833 PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2834 (Bugzilla #53).
2836 PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2837 canonical form (as documented). However, after a host name lookup from
2838 the IP address, check_host() was doing a simple string comparison with
2839 addresses acquired from the DNS when checking that the found name did
2840 have the original IP as one of its addresses. Since any found IPv6
2841 addresses are likely to be in abbreviated form, the comparison could
2842 fail. Luckily, there already exists a function for doing the comparison
2843 by converting both addresses to binary, so now that is used instead of
2844 the text comparison.
2846 PH/20 There was another similar case to PH/19, when a complete host name was
2847 given in a host list; looking up its IP address could give an abbreviated
2848 form, whereas the current host's name might or might not be abbreviated.
2849 The same fix has been applied.
2852 Exim version 4.54
2853 -----------------
2855 PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2856 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2857 It now does.
2859 PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2860 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2862 PH/03 Typo: missing ".o" in src/pcre/Makefile.
2864 PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2865 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2866 Also, for "Auto-Submitted", treat anything other than "no" as
2867 non-personal, in accordance with RFC 3834. (Previously it treated
2868 anything starting "auto-" as non-personal.)
2870 TF/01 The control=submission/name=... option had a problem with syntax
2871 errors if the name included a slash character. The /name= option
2872 now slurps the rest of the string, so it can include any characters
2873 but it must come last in the list of options (after /sender_retain
2874 or /domain=).
2876 PH/05 Some modifications to the interface to the fake nameserver for the new
2877 testing suite.
2881 Exim version 4.53
2882 -----------------
2884 TK/01 Added the "success_on_redirect" address verification option. See
2885 NewStuff for rationale and an example.
2887 PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2889 PH/02 Patch to exigrep to allow it to work on syslog lines.
2891 PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2892 fread() to skip over the body file's header line, because in Cygwin the
2893 header line is locked and is inaccessible.
2895 PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2896 co-exist for some time) to make it clear that it is the Exim ID that is
2897 referenced, not the Message-ID: header line.
2899 PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2900 string_format() function, because snprintf() does not exist on all
2901 operating systems.
2903 PH/06 The use of forbid_filter_existstest now also locks out the use of the
2904 ${stat: expansion item.
2906 PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2907 protocol synchronization error", to keep the pedants happy.
2909 PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2910 well as for IRIX systems, when gcc is being used. See the host.c source
2911 file for comments.
2913 PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2915 PH/10 Named domain lists were not working if used in a queue_smtp_domains
2916 setting.
2918 PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2919 transport and to the smtp transport in LMTP mode.
2921 TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2923 PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2924 run a filter in a subprocess. This could lead to confusion in subsequent
2925 lookups in the parent process. There should also be a search_tidyup() at
2926 the end of the subprocess.
2928 PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2929 only if the host matched helo_try_verify_hosts, which caused the
2930 verification to occur when the EHLO/HELO command was issued. The ACL just
2931 tested the remembered result. Now, if a previous verification attempt has
2932 not happened, "verify = helo" does it there and then.
2934 JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2936 TK/03 Fix log output including CR from clamd.
2938 PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2939 exist provoked a memory error which could cause a segfault.
2941 PH/15 Installed PCRE 6.2
2943 PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2945 PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2946 of the problem. Specifically, suggested +O2 rather than +O1 for the
2947 HP-UX compiler.
2949 PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2951 PH/20 If a delivery was routed to a non-standard port by means of an SRV
2952 record, the port was not correctly logged when the outgoing_port log
2953 selector was set (it logged the transort's default port).
2955 PH/21 Added support for host-specific ports to manualroute, queryprogram,
2956 fallback_hosts, and "hosts" in the smtp transport.
2958 PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2959 host errors such as "Connection refused".
2961 PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2962 authentication with radiusclient 0.4.9:
2964 - Error returned from rc_read_config was caught wrongly
2965 - Username/password not passed on to radius server due to wrong length.
2967 The presumption is that some radiusclient API changes for 4.51/PH/17
2968 were not taken care of correctly. The code is still untested by me (my
2969 Linux distribution still has 0.3.2 of radiusclient), but it was
2970 contributed by a Radius user.
2972 PH/24 When doing a callout, the value of $domain wasn't set correctly when
2973 expanding the "port" option of the smtp transport.
2975 TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2976 while reading a MIME header. Thanks to Tom Hughes for a patch.
2978 PH/24 Include config.h inside local_scan.h so that configuration settings are
2979 available.
2981 PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2982 that in an ACL for RCPT (for example), you can examine exactly what was
2983 received.
2985 PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2986 commands, but it was not correctly comparing the address with the actual
2987 client host address. Thus, it would show the EHLO address in Received:
2988 header lines when this was not necessary.
2990 PH/27 Added the % operator to ${eval:}.
2992 PH/28 Exim tries to create and chdir to its spool directory when it starts;
2993 it should be ignoring failures (because with -C, for example, it has lost
2994 privilege). It wasn't ignoring creation failures other than "already
2995 exists".
2997 PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2998 -bV or -d is used.
3000 PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
3001 because an input line was too long, either on its own, or by virtue of
3002 too many continuations, the temporary file was not being removed, and the
3003 return code was incorrect.
3005 PH/31 Missing "BOOL" in function definition in filtertest.c.
3007 PH/32 Applied Sieve patches from the maintainer.
3009 TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
3011 PH/33 Added "verify = not_blind".
3013 PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
3014 Local/Makefile (with some defaults set). These are used in built scripts
3015 such as exicyclog, but they have never been used in the exim_install
3016 script (though there are many overriding facilities there). I have
3017 arranged that the exim_install script now takes note of these two
3018 settings.
3020 PH/35 Installed configuration files for Dragonfly.
3022 PH/36 When a locally submitted message by a trusted user did not contain a
3023 From: header, and the sender address was obtained from -f or from an SMTP
3024 MAIL command, and the trusted user did not use -F to supply a sender
3025 name, $originator_name was incorrectly used when constructing a From:
3026 header. Furthermore, $originator_name was used for submission mode
3027 messages from external hosts without From: headers in a similar way,
3028 which is clearly wrong.
3030 PH/37 Added control=suppress_local_fixups.
3032 PH/38 When log_selector = +received_sender was set, and the addition of the
3033 sender made the log line's construction buffer exactly full, or one byte
3034 less than full, an overflow happened when the terminating "\n" was
3035 subsequently added.
3037 PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
3038 when the result of a list match is failure because a DNS lookup failed.
3040 PH/40 RM_COMMAND is now used in the building process.
3042 PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
3043 the "build-* directories that it finds.
3045 PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
3046 address in a domain literal was a prefix of an interface address.
3048 PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
3049 when verifying a sender address, unless rewrite_headers is false.
3051 PH/44 Wrote a long comment about why errors_to addresses are verified as
3052 recipients, not senders.
3054 TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
3055 the ratelimit ACL was added.
3057 PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
3059 PH/46 Added extra information about PostgreSQL errors to the error string.
3061 PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
3062 avoiding the need to install special zones in a real server. This is
3063 backwards compatible; if it can't find the fake resolver, it drops back.
3064 Thus, both old and new test suites can be run.
3066 TF/02 Added util/
3068 TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
3069 clock is set back in time.
3071 TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
3072 Candler <>.
3074 TF/05 The fix for PH/43 was not completely correct; widen_domains is always
3075 OK for addresses that are the result of redirections.
3077 PH/48 A number of further additions for the benefit of the new test suite,
3078 including a fake gethostbyname() that interfaces to the fake DNS resolver
3079 (see PH/47 above).
3081 TF/06 The fix for widen_domains has also been applied to qualify_single and
3082 search_parents which are the other dnslookup options that can cause
3083 header rewrites.
3085 PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
3086 type ("H").
3088 PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
3090 TF/07 Exim produced the error message "an SRV record indicated no SMTP
3091 service" if it encountered an MX record with an empty target hostname.
3092 The message is now "an MX or SRV record indicated no SMTP service".
3094 TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
3095 if the DNS of the sending site is misconfigured. This is quite a
3096 common situation. This change restores the behaviour of treating a
3097 helo verification defer as a failure.
3099 PH/51 If self=fail was set on a router, the bounce message did not include the
3100 actual error message.
3103 Exim version 4.52
3104 -----------------
3106 TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
3108 PH/01 When a transport filter timed out in a pipe delivery, and the pipe
3109 command itself ended in error, the underlying message about the transport
3110 filter timeout was being overwritten with the pipe command error. Now the
3111 underlying error message should be appended to the second error message.
3113 TK/01 Fix poll() being unavailable on Mac OSX 10.2.
3115 PH/02 Reduce the amount of output that "make" produces by default. Full output
3116 can still be requested.
3118 PH/03 The warning log line about a condition test deferring for a "warn" verb
3119 was being output only once per connection, rather than after each
3120 occurrence (because it was using the same function as for successful
3121 "warn" verbs). This seems wrong, so I have changed it.
3123 TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
3124 it should not have, which might have caused a crash in the right
3125 circumstances, but probably never did.
3127 PH/04 Installed a modified version of Tony Finch's patch to make submission
3128 mode fix the return path as well as the Sender: header line, and to
3129 add a /name= option so that you can make the user's friendly name appear
3130 in the header line.
3132 TF/03 Added the control = fakedefer ACL modifier.
3134 TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
3135 Mark Lowes for thorough testing.
3137 TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
3139 TK/03 Merged latest SRS patch from Miles Wilton.
3141 PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
3142 with the definition in sysexits.h (which is #included earlier).
3143 Fortunately, Exim does not actually use EX_OK. The code used to try to
3144 preserve the sysexits.h value, by assumimg that macro definitions were
3145 scanned for macro replacements. I have been disabused of this notion,
3146 so now the code just undefines EX_OK before #including unistd.h.
3148 PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
3149 in the smtp transport. When a block could not be written in a single
3150 write() function, the timeout was being re-applied to each part-write.
3151 This seems wrong - if the receiver was accepting one byte at a time it
3152 would take for ever. The timeout is now adjusted when this happens. It
3153 doesn't have to be particularly precise.
3155 TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
3156 details. Thanks to Chris Webb <> for the patch!
3158 PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
3159 without a domain if the check to <postmaster@domain> fails.
3161 SC/01 Eximstats: added -xls and the ability to specify output files
3162 (patch written by Frank Heydlauf).
3164 SC/02 Eximstats: use FileHandles for outputing results.
3166 SC/03 Eximstats: allow any combination of xls, txt, and html output.
3168 SC/04 Eximstats: fixed display of large numbers with -nvr option
3170 SC/05 Eximstats: fixed merging of reports with empty tables.
3172 SC/06 Eximstats: added the -include_original_destination flag
3174 SC/07 Eximstats: removed tabs and trailing whitespace.
3176 TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
3178 TK/06 MBOX spool code: Add real "From " MBOX separator line
3179 so the .eml file is really in mbox format (even though
3180 most programs do not really care). Patch from Alex Miller.
3182 TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
3183 The latter is generated from $received_to and is only set if the
3184 message has one envelope recipient. SA can use these headers,
3185 obviously out-of-the-box. Patch from Alex Miller.
3187 PH/08 The ${def test on a variable was returning false if the variable's
3188 value was "0", contrary to what the specification has always said!
3189 The result should be true unless the variable is empty.
3191 PH/09 The syntax error of a character other than { following "${if
3192 def:variable_name" (after optional whitespace) was not being diagnosed.
3193 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
3194 accidental colon was present, for example, could give incorrect results.
3196 PH/10 Tidied the code in a number of places where the st_size field of a stat()
3197 result is used (not including appendfile, where other changes are about
3198 to be made).
3200 PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
3201 This involved changing a lot of size variables from int to off_t. It
3202 should work with maildirs and everything.
3204 TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
3205 spamd dying while we are connected to it.
3207 TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
3208 <>
3210 PH/12 Applied Alex Kiernan's patch for the API change for the error callback
3211 function for BDB 4.3.
3213 PH/13 Changed auto_thaw such that it does not apply to bounce messages.
3215 PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
3216 the sources for PCRE have been re-arranged and more files are now
3217 involved.
3219 PH/15 The code I had for printing potentially long long variables in PH/11
3220 above was not the best (it lost precision). The length of off_t variables
3221 is now inspected at build time, and an appropriate printing format (%ld
3222 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
3223 to be "long long int" or "long int". This is needed for the internal
3224 formatting function string_vformat().
3226 PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
3227 the configuration file to be ":syslog", then the script "guesses" where
3228 the logs files are, rather than using the compiled in default. In our
3229 case the guess is not the same as the compiled default, so the script
3230 suddenly stopped working when I started to use syslog. The patch checks
3231 to see if log_file_path is "". If so, it attempts to read it from exim
3232 with no configuration file to get the compiled in version, before it
3233 falls back to the previous guessing code."
3235 TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
3236 implementing BATV in an Exim configuration. See NewStuff for the gory
3237 details.
3239 PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
3240 Makefile that are specific to HP-UX.
3242 PH/18 If the "use_postmaster" option was set for a recipient callout together
3243 with the "random" option, the postmaster address was used as the MAIL
3244 FROM address for the random test, but not for the subsequent recipient
3245 test. It is now used for both.
3247 PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
3248 patch removes a few documentation additions to RFC 3028, because the
3249 latest draft now contains them. It adds the new en;ascii-case comparator
3250 and a new error check for 8bit text in MIME parts. Comparator and
3251 require names are now matched exactly. I enabled the subaddress
3252 extension, but it is not well tested yet (read: it works for me)."
3254 PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
3255 rework some of the code of TK/09 above to avoid the hardwired use of
3256 "%lld" and "long long". Replaced the call to snprintf() with a call to
3257 string_vformat().
3259 PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
3260 records point to non-existent hosts", "retry timeout exceeded", and
3261 "retry time not reached for any host after a long failure period".
3263 PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
3264 experimental DomainKeys support:
3266 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
3267 (2) On an error such as an illegally used "control", the wrong name for
3268 the control was given.
3270 These problems did NOT occur unless DomainKeys support was compiled.
3272 PH/23 Added daemon_startup_retries and daemon_startup_sleep.
3274 PH/24 Added ${if match_ip condition.
3276 PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
3277 databases so that it will be absolutely obvious if a crash occurs in the
3278 DB library. This is a regular occurrence (often caused by mis-matched
3279 db.h files).
3281 PH/26 Insert a lot of missing (void) casts for functions such as chown(),
3282 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
3283 picked up on a user's system that detects such things. There doesn't seem
3284 to be a gcc warning option for this - only an attribute that has to be
3285 put on the function's prototype. It seems that in Fedora Core 4 they have
3286 set this on a number of new functions. No doubt there will be more in due
3287 course.
3289 PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
3290 specify a transport. However, if an address that was verified by such a
3291 router was the subject of a callout, Exim crashed because it tried to
3292 read the rcpt_include_affixes from the non-existent transport. Now it
3293 just assumes that the setting of that option is false. This bug was
3294 introduced by 4.51/PH/31.
3296 PH/28 Changed -d+all to exclude +memory, because that information is very
3297 rarely of interest, but it makes the output a lot bigger. People tend to
3298 do -d+all out of habit.
3300 PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
3301 code in os-type was giving problems when lives in lib64, like on
3302 x86_64 Fedora Core.
3304 PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
3305 aren't the modern standard, and it seems that some systems' include files
3306 don't always have them. Exim was already checking for some of the newer
3307 ones like T_AAAA, and defining it itself. I've added checks for all the
3308 record types that Exim uses.
3310 PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
3311 not automatically generating a new one, as it is supposed to. This
3312 prevented TLS from working. If the file did exist, but contained invalid
3313 data, a new version was generated, as expected. It was only the case of a
3314 non-existent file that was broken.
3316 TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
3317 with a change in libdomainkeys > 0.64.
3319 TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
3320 from DNS. If the selector record carries the flag, it now has
3321 precedence over the domain-wide flag.
3323 TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
3325 PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
3326 the use of a port name that isn't defined in /etc/services) occurred, the
3327 message was deferred as in a normal delivery, and thus remained on the
3328 spool, instead of being failed because of the mua_wrapper setting. This
3329 is now fixed, and I tidied up some of the mua_wrapper messages at the
3330 same time.
3332 SC/08 Eximstats: whilst parsing the mainlog(s), store information about
3333 the messages in a hash of arrays rather than using individual hashes.
3334 This is a bit cleaner and results in dramatic memory savings, albeit
3335 at a slight CPU cost.
3337 SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
3338 as requested by Marc Sherman.
3340 SC/10 Eximstats: added histograms for user specified patterns as requested
3341 by Marc Sherman.
3343 SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
3345 PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
3346 fopen() in the content-scanning modules that did not already have it.
3349 Exim version 4.51
3350 -----------------
3352 TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
3353 doc/experimental-spec.txt for details. (
3355 TK/02 Fix ACL "control" statement not being available in MIME ACL.
3357 TK/03 Fix ACL "regex" condition not being available in MIME ACL.
3359 PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
3360 to test Sieve filters that use "vacation".
3362 PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
3363 that changes the way the GnuTLS parameters are stored in the cache file.
3364 The new format can be generated externally. For backward compatibility,
3365 if the data in the cache doesn't make sense, Exim assumes it has read an
3366 old-format file, and it generates new data and writes a new file. This
3367 means that you can't go back to an older release without removing the
3368 file.
3370 PH/03 A redirect router that has both "unseen" and "one_time" set does not
3371 work if there are any delivery delays because "one_time" forces the
3372 parent to be marked "delivered", so its unseen clone is never tried
3373 again. For this reason, Exim now forbids the simultaneous setting of
3374 these two options.
3376 PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
3377 redirected to themselves ("homonym" addresses). Read the long ChangeLog
3378 entry if you want to know the details. The fix, however, neglected to
3379 consider the case when local delivery batching is involved. The test for
3380 "previously delivered" was not happening when checking to see if an
3381 address could be batched with a previous (undelivered) one; under
3382 certain circumstances this could lead to multiple deliveries to the same
3383 address.
3385 PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
3386 in its include files, and this causes problems building Exim.
3388 PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
3389 header_syntax) but Exim was just ignoring anything given after a slash.
3390 In particular, this caused confusion with an attempt to use "verify =
3391 reverse_host_lookup/defer_ok". An error is now given when options are
3392 supplied for verify items that do not have them. (Maybe reverse_host_
3393 lookup should have a defer_ok option, but that's a different point.)
3395 PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
3396 defined by RFC 821) to 2048, because there were problems with some AUTH
3397 commands, and RFC 1869 says the size should be increased for extended
3398 SMTP commands that take arguments.
3400 PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
3401 Finch).
3403 PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
3404 "unknown" error; now it says that the functionality isn't in the binary.
3406 PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
3407 an address' error message when a string expansion fails (syntax or
3408 whatever). Otherwise the password may appear in the log. Following change
3409 PH/42 below, there is no longer a chance of it appearing in a bounce
3410 message.
3412 PH/11 Installed exipick version 20050225.0 from John Jetmore.
3414 PH/12 If the last host in a fallback_hosts list was multihomed, only the first
3415 of its addresses was ever tried. (Bugzilla bug #2.)
3417 PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
3418 the result incorrectly in the debug output. (It correctly added a newline
3419 to what was transported.)
3421 TF/01 Added $received_time.
3423 PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
3424 commented out examples of how to interface to a virus scanner and to
3425 SpamAssassin. Also added commented examples of av_scanner and
3426 spamd_address settings.
3428 PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
3429 and controls are allowed in which ACLs. There were a couple of minor
3430 errors. Some of the entries in the conditions table (which is a table of
3431 where they are NOT allowed) were getting very unwieldy; rewrote them as a
3432 negation of where the condition IS allowed.
3434 PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
3436 PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
3437 header file does not have a version number, so I've had to invent a new
3438 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
3439 API. The code is untested by me (my Linux distribution still has 0.3.2 of
3440 radiusclient), but it was contributed by a Radius user.
3442 PH/18 Installed Lars Mainka's patch for the support of CRL collections in
3443 files or directories, for OpenSSL.
3445 PH/19 When an Exim process that is running as root has to create an Exim log
3446 file, it does so in a subprocess that runs as exim:exim so as to get the
3447 ownership right at creation (otherwise, other Exim processes might see
3448 the file with the wrong ownership). There was no test for failure of this
3449 fork() call, which would lead to the process getting stuck as it waited
3450 for a non-existent subprocess. Forks do occasionally fail when resources
3451 run out. I reviewed all the other calls to fork(); they all seem to check
3452 for failure.
3454 PH/20 When checking for unexpected SMTP input at connect time (before writing
3455 the banner), Exim was not dealing correctly with a non-positive return
3456 from the read() function. If the client had disconnected by this time,
3457 the result was a log entry for a synchronization error with an empty
3458 string after "input=" when read() returned zero. If read() returned -1
3459 (an event I could not check), uninitialized data bytes were printed.
3460 There were reports of junk text (parts of files, etc) appearing after
3461 "input=".
3463 PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
3465 PH/22 Added support for macro redefinition, and (re)definition in between
3466 driver and ACL definitions.
3468 PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
3469 forgetting to use the resulting value; it was using the unexpanded value.
3471 PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
3472 hadn't been configured. The fix is from Juergen Kreileder, who
3473 understands it better than I do:
3475 "Here's what I see happening with three configured cyrus_sasl
3476 authenticators configured (plain, login, cram-md5):
3478 On startup auth_cyrus_sasl_init() gets called for each of these.
3479 This means three calls to sasl_listmech() without a specified mech_list.
3480 => SASL tests which mechs of all available mechs actually work
3481 => three warnings about OTP not working
3482 => the returned list contains: plain, login, cram-md5, digest-md5, ...
3484 With the patch, sasl_listmech() also gets called three times. But now
3485 SASL's mech_list option is set to the server_mech specified in the the
3486 authenticator. Or in other words, the answer from sasl_listmech()
3487 gets limited to just the mech you're testing for (which is different
3488 for each call.)
3489 => the return list contains just 'plain' or 'login', 'cram-md5' or
3490 nothing depending on the value of ob->server_mech.
3492 I've just tested the patch: Authentication still works fine,
3493 unavailable mechs specified in the exim configuration are still
3494 caught, and the auth.log warnings about OTP are gone."
3496 PH/25 When debugging is enabled, the contents of the command line are added
3497 to the debugging output, even when log_selector=+arguments is not
3498 specified.
3500 PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
3501 answer is "GNU", and only if the return is "GNU/something" is the answer
3502 "Linux".
3504 PH/27 $acl_verify_message is now set immediately after the failure of a
3505 verification in an ACL, and so is available in subsequent modifiers. In
3506 particular, the message can be preserved by coding like this:
3508 warn !verify = sender
3509 set acl_m0 = $acl_verify_message
3511 Previously, $acl_verify_message was set only while expanding "message"
3512 and "log_message" when a very denied access.
3514 PH/28 Modified OS/os.c-Linux with
3516 -#ifndef OS_LOAD_AVERAGE
3517 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
3519 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
3520 nomenclature these days.)
3522 PH/29 Installed patch from the Sieve maintainer that adds the options
3523 sieve_useraddress and sieve_subaddress to the redirect router.
3525 PH/30 In these circumstances:
3526 . Two addresses routed to the same list of hosts;
3527 . First host does not offer TLS;
3528 . First host accepts first address;
3529 . First host gives temporary error to second address;
3530 . Second host offers TLS and a TLS session is established;
3531 . Second host accepts second address.
3532 Exim incorrectly logged both deliveries with the TLS parameters (cipher
3533 and peerdn, if requested) that were in fact used only for the second
3534 address.
3536 PH/31 When doing a callout as part of verifying an address, Exim was not paying
3537 attention to any local part prefix or suffix that was matched by the
3538 router that accepted the address. It now behaves in the same way as it
3539 does for delivery: the affixes are removed from the local part unless
3540 rcpt_include_affixes is set on the transport.
3542 PH/32 Add the sender address, as F=<...>, to the log line when logging a
3543 timeout during the DATA phase of an incoming message.
3545 PH/33 Sieve envelope tests were broken for match types other than :is. I have
3546 applied a patch sanctioned by the Sieve maintainer.
3548 PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
3549 the uid or gid is negative. A case of a negative gid caused this to be
3550 noticed. The fix allows for either to be negative.
3552 PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
3553 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
3554 overlooked.
3556 PH/36 The change PH/12 above was broken. Fixed it.
3558 PH/37 Exim used to check for duplicate addresses in the middle of routing, on
3559 the grounds that routing the same address twice would always produce the
3560 same answer. This might have been true once, but it is certainly no
3561 longer true now. Routing a child address may depend on the previous
3562 routing that produced that child. Some complicated redirection strategies
3563 went wrong when messages had multiple recipients, and made Exim's
3564 behaviour dependent on the order in which the addresses were given.
3566 I have moved the duplicate checking until after the routing is complete.
3567 Exim scans the addresses that are assigned to local and remote
3568 transports, and removes any duplicates. This means that more work will be
3569 done, as duplicates will always all be routed, but duplicates are
3570 presumably rare, so I don't expect this is of any significance.
3572 For deliveries to pipes, files, and autoreplies, the duplicate checking
3573 still happens during the routing process, since they are not going to be
3574 routed further.
3576 PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
3577 It corrects a timeout issue with spamd. This is Ian's comment: "The
3578 background is that sometimes spamd either never reads data from a
3579 connection it has accepted, or it never writes response data. The exiscan
3580 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
3581 blindly assumes that writes won't block so it may never time out."
3583 PH/39 Allow G after quota size as well as K and M.
3585 PH/40 The value set for $authenticated_id in an authenticator may not contain
3586 binary zeroes or newlines because the value is written to log lines and
3587 to spool files. There was no check on this. Now the value is run through
3588 the string_printing() function so that such characters are converted to
3589 printable escape sequences.
3591 PH/41 $message_linecount is a new variable that contains the total number of
3592 lines in the message. Compare $body_linecount, which is the count for the
3593 body only.
3595 PH/42 Exim no longer gives details of delivery errors for specific addresses in
3596 bounce and delay warning messages, except in certain special cases, which
3597 are as follows:
3599 (a) An SMTP error message from a remote host;
3600 (b) A message specified in a :fail: redirection;
3601 (c) A message specified in a "fail" command in a system filter;
3602 (d) A message specified in a FAIL return from the queryprogram router;
3603 (e) A message specified by the cannot_route_message router option.
3605 In these cases only, Exim does include the error details in bounce and
3606 warning messages. There are also a few cases where bland messages such
3607 as "unrouteable address" or "local delivery error" are given.
3609 PH/43 $value is now also set for the "else" part of a ${run expansion.
3611 PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
3612 being worked on, but at least Exim now implements the latest version to
3613 play with."
3615 PH/45 In a pipe transport, although a timeout while waiting for the pipe
3616 process to complete was treated as a delivery failure, a timeout while
3617 writing the message to the pipe was logged, but erroneously treated as a
3618 successful delivery. Such timeouts include transport filter timeouts. For
3619 consistency with the overall process timeout, these timeouts are now
3620 treated as errors, giving rise to delivery failures by default. However,
3621 there is now a new Boolean option for the pipe transport called
3622 timeout_defer, which, if set TRUE, converts the failures into defers for
3623 both kinds of timeout. A transport filter timeout is now identified in
3624 the log output.
3626 PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
3627 systems where "make" and "gmake" are different, calling "gmake" at top
3628 level broke things. I've arranged for the value of $(MAKE) to be passed
3629 from the Makefile to this script so that it can call the same version of
3630 "make".
3633 A note about Exim versions 4.44 and 4.50
3634 ----------------------------------------
3636 Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
3637 changes of various kinds. As a consequence, a big documentation update was
3638 needed. This delayed the release for rather longer than seemed good, especially
3639 in the light of a couple of (minor) security issues. Therefore, the changes
3640 that fixed bugs were backported into 4.43, to create a 4.44 maintenance
3641 release. So 4.44 and 4.50 are in effect two different branches that both start
3642 from 4.43.
3644 I have left the 4.50 change log unchanged; it contains all the changes since
3645 4.43. The change log for 4.44 is below; many of its items are identical to
3646 those for 4.50. This seems to be the most sensible way to preserve the
3647 historical information.
3650 Exim version 4.50
3651 -----------------
3653 1. Minor wording change to the doc/README.SIEVE file.
3655 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
3656 computation of the current number of files was incorrect.
3658 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3659 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3660 place.
3662 4. Give more explanation in the error message when the command for a transport
3663 filter fails to execute.
3665 5. There are several places where Exim runs a non-Exim command in a
3666 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3667 was being done only for the command run by the queryprogram router. It is
3668 now done for all such subprocesses. The other cases are: ${run, transport
3669 filters, and the commands run by the lmtp and pipe transports.
3671 6. Added CONFIGURE_GROUP build-time option.
3673 7. Some older OS have a limit of 256 on the maximum number of file
3674 descriptors. Exim was using setrlimit() to set 1000 as a large value
3675 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3676 systems. I've change it so that if it can't get 1000, it tries for 256.
3678 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3679 was an oversight, and furthermore, ever since the addition of extra
3680 controls (e.g. 4.43/32), the checks on when to allow different forms of
3681 "control" were broken. There should now be diagnostics for all cases when a
3682 control that does not make sense is encountered.
3684 9. Added the /retain_sender option to "control=submission".
3686 10. $recipients is now available in the predata ACL (oversight).
3688 11. Tidy the search cache before the fork to do a delivery from a message
3689 received from the command line. Otherwise the child will trigger a lookup
3690 failure and thereby defer the delivery if it tries to use (for example) a
3691 cached ldap connection that the parent has called unbind on.
3693 12. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3694 of $address_data from the recipient verification was clobbered by the
3695 sender verification.
3697 13. The value of address_data from a sender verification is now available in
3698 $sender_address_data in subsequent conditions in the ACL statement.
3700 14. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
3702 15. Added a new option "connect=<time>" to callout options, to set a different
3703 connection timeout.
3705 16. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3706 was its contents. (It was OK if the option was not defined at all.)
3708 17. A "Completed" log line is now written for messages that are removed from
3709 the spool by the -Mrm option.
3711 18. New variables $sender_verify_failure and $recipient_verify_failure contain
3712 information about exactly what failed.
3714 19. Added -dd to debug only the daemon process.
3716 20. Incorporated Michael Haardt's patch to ldap.c for improving the way it
3717 handles timeouts, both on the server side and network timeouts. Renamed the
3718 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
3720 21. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
3721 It is now set to "smtps".
3723 22. $host_address is now set to the target address during the checking of
3724 ignore_target_hosts.
3726 23. When checking ignore_target_hosts for an ipliteral router, no host name was
3727 being passed; this would have caused $sender_host_name to have been used if
3728 matching the list had actually called for a host name (not very likely,
3729 since this list is usually IP addresses). A host name is now passed as
3730 "[x.x.x.x]".
3732 24. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3733 code that specifies a non-restarting handler (typically sigaction() in
3734 modern systems) in an attempt to fix a rare and obscure crash bug.
3736 25. Narrowed the window for a race in the daemon that could cause it to ignore
3737 SIGCHLD signals. This is not a major problem, because they are used only to
3738 wake it up if nothing else does.
3740 26. A malformed maildirsize file could cause Exim to calculate negative values
3741 for the mailbox size or file count. Odd effects could occur as a result.
3742 The maildirsize information is now recalculated if the size or filecount
3743 end up negative.
3745 27. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3746 support for a long time. Removed HAVE_SYS_VFS_H.
3748 28. Installed the latest version of exipick from John Jetmore.
3750 29. In an address list, if the pattern was not a regular expression, an empty
3751 subject address (from a bounce message) matched only if the pattern was an
3752 empty string. Non-empty patterns were not even tested. This was the wrong
3753 because it is perfectly reasonable to use an empty address as part of a
3754 database query. An empty address is now tested by patterns that are
3755 lookups. However, all the other forms of pattern expect the subject to
3756 contain a local part and a domain, and therefore, for them, an empty
3757 address still always fails if the pattern is not itself empty.
3759 30. Exim went into a mad DNS loop when attempting to do a callout where the
3760 host was specified on an smtp transport, and looking it up yielded more
3761 than one IP address.
3763 31. Re-factored the code for checking spool and log partition space into a
3764 function that finds that data and another that does the check. The former
3765 is then used to implement four new variables: $spool_space, $log_space,
3766 $spool_inodes, and $log_inodes.
3768 32. The RFC2047 encoding function was originally intended for short strings
3769 such as real names; it was not keeping to the 75-character limit for
3770 encoded words that the RFC imposes. It now respects the limit, and
3771 generates multiple encoded words if necessary. To be on the safe side, I
3772 have increased the buffer size for the ${rfc2047: expansion operator from
3773 1024 to 2048 bytes.
3775 33. It is now permitted to omit both strings after an "if" condition; if the
3776 condition is true, the result is "true". As before, when the second string
3777 is omitted, a false condition yields an empty string. This makes it less
3778 cumbersome to write custom ACL and router conditions.
3780 34. Failure to deliver a bounce message always caused it to be frozen, even if
3781 there was an errors_to setting on the router. The errors_to setting is now
3782 respected.
3784 35. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3785 canonical form (fully expanded) before being placed in
3786 $sender_host_address.
3788 36. The table in the code that translates DNS record types into text (T_A to
3789 "A" for instance) was missing entries for NS and CNAME. It is just possible
3790 that this could have caused confusion if both these types were looked up
3791 for the same domain, because the text type is used as part of Exim's
3792 per-process caching. But the chance of anyone hitting this buglet seems
3793 very small.
3795 37. The dnsdb lookup has been extended in a number of ways.
3797 (1) There is a new type, "zns", which walks up the domain tree until it
3798 finds some nameserver records. It should be used with care.
3800 (2) There is a new type, "mxh", which is like "mx" except that it returns
3801 just the host names, not the priorities.
3803 (3) It is now possible to give a list of domains (or IP addresses) to be
3804 looked up. The behaviour when one of the lookups defers can be
3805 controlled by a keyword.
3807 (4) It is now possible to specify the separator character for use when
3808 multiple records are returned.
3810 38. The dnslists ACL condition has been extended: it is now possible to supply
3811 a list of IP addresses and/or domains to be looked up in a particular DNS
3812 domain.
3814 39. Added log_selector=+queue_time_overall.
3816 40. When running the queue in the test harness, wait just a tad after forking a
3817 delivery process, to get repeatability of debugging output.
3819 41. Include certificate and key file names in error message when GnuTLS fails
3820 to set them up, because the GnuTLS error message doesn't include the name
3821 of the failing file when there is a problem reading it.
3823 42. Allow both -bf and -bF in the same test run.
3825 43. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
3827 44. The "Exiscan patch" is now merged into the mainline Exim source.
3829 45. Sometimes the final signoff response after QUIT could fail to get
3830 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3831 < 0 before doing a fflush(). This bug looks as though it goes back to the
3832 introduction of TLS in release 3.20, but "sometimes" must have been rare
3833 because the tests only now provoked it.
3835 46. Reset the locale to "C" after calling embedded Perl, in case it was changed
3836 (this can affect the format of dates).
3838 47. exim_tidydb, when checking for the continued existence of a message for
3839 which it has found a message-specific retry record, was not finding
3840 messages that were in split spool directories. Consequently, it was
3841 deleting retry records that should have stayed in existence.
3843 48. Steve fixed some bugs in eximstats.
3845 49. The SPA authentication driver was not abandoning authentication and moving
3846 on to the next authenticator when an expansion was forced to fail,
3847 contradicting the general specification for all authenticators. Instead it
3848 was generating a temporary error. It now behaves as specified.
3850 50. The default ordering of permitted cipher suites for GnuTLS was pessimal
3851 (the order specifies the preference for clients). The order is now AES256,
3852 AES128, 3DES, ARCFOUR128.
3854 51. Small patch to Sieve code - explicitly set From: when generating an
3855 autoreply.
3857 52. Exim crashed if a remote delivery caused a very long error message to be
3858 recorded - for instance if somebody sent an entire SpamAssassin report back
3859 as a large number of 550 error lines. This bug was coincidentally fixed by
3860 increasing the size of one of Exim's internal buffers (big_buffer) that
3861 happened as part of the Exiscan merge. However, to be on the safe side, I
3862 have made the code more robust (and fixed the comments that describe what
3863 is going on).
3865 53. Now that there can be additional text after "Completed" in log lines (if
3866 the queue_time_overall log selector is set), a one-byte patch to exigrep
3867 was needed to allow it to recognize "Completed" as not the last thing in
3868 the line.
3870 54. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
3871 patch that reportedly fixes this has been added. I am not expert enough to
3872 create a test for it. This is what the patch creator wrote:
3874 "I found a little strange behaviour of ldap code when working with
3875 Windows 2003 AD Domain, where users was placed in more than one
3876 Organization Units. When I tried to give exim partial DN, the exit code
3877 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
3878 But simultaneously result of request was absolutely normal ldap result,
3879 so I produce this patch..."
3881 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
3882 REFERENCE, so I have modified the code to exclude the patch when that macro
3883 is not defined.
3885 55. Some experimental protocols are using DNS PTR records for new purposes. The
3886 keys for these records are domain names, not reversed IP addresses. The
3887 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3888 leaves it alone. Component reversal etc. now happens only for IP addresses.
3889 CAN-2005-0021
3891 56. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
3893 57. Double the size of the debug message buffer (to 2048) so that more of very
3894 long debug lines gets shown.
3896 58. The exicyclog utility now does better if the number of log files to keep
3897 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
3899 59. Two changes related to the smtp_active_hostname option:
3901 (1) $smtp_active_hostname is now available as a variable.
3902 (2) The default for smtp_banner uses $smtp_active_hostname instead
3903 of $primary_hostname.
3905 60. The host_aton() function is supposed to be passed a string that is known
3906 to be a valid IP address. However, in the case of IPv6 addresses, it was
3907 not checking this. This is a hostage to fortune. Exim now panics and dies
3908 if the condition is not met. A case was found where this could be provoked
3909 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3910 components; fortuitously, this particular loophole had already been fixed
3911 by change 4.50/55 above.
3913 If there are any other similar loopholes, the new check in host_aton()
3914 itself should stop them being exploited. The report I received stated that
3915 data on the command line could provoke the exploit when Exim was running as
3916 exim, but did not say which command line option was involved. All I could
3917 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3918 running as the user.
3919 CAN-2005-0021
3921 61. There was a buffer overflow vulnerability in the SPA authentication code
3922 (which came originally from the Samba project). I have added a test to the
3923 spa_base64_to_bits() function which I hope fixes it.
3924 CAN-2005-0022
3926 62. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3927 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3929 63. The daemon start-up calls getloadavg() while still root for those OS that
3930 need the first call to be done as root, but it missed one case: when
3931 deliver_queue_load_max is set with deliver_drop_privilege. This is
3932 necessary for the benefit of the queue runner, because there is no re-exec
3933 when deliver_drop_privilege is set.
3935 64. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3936 This has been fixed.
3938 65. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3939 was in use, was not putting the data itself into the right store pool;
3940 consequently, it could be overwritten for a subsequent message in the same
3941 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3942 the caching.)
3944 66. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3946 67. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3947 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3948 the function were treating the return as a boolean value, which happened to
3949 work because 0=false and not-0=true, but is not correct code.
3951 68. The host_aton() function was not handling scoped IPv6 addresses (those
3952 with, for example, "%eth0" on the end) correctly.
3954 69. Fixed some compiler warnings in acl.c for the bitmaps specified with
3955 negated items (that is, ~something) in unsigned ints. Some compilers
3956 apparently mutter when there is no cast.
3958 70. If an address verification called from an ACL failed, and did not produce a
3959 user-specific message (i.e. there was only a "system" message), nothing was
3960 put in $acl_verify_message. In this situation, it now puts the system
3961 message there.
3963 71. Change 4.23/11 added synchronization checking at the start of an SMTP
3964 session; change 4.31/43 added the unwanted input to the log line - except
3965 that it did not do this in the start of session case. It now does.
3967 72. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3968 This is wrong and can cause the other end to generate a synchronization
3969 error if it is another Exim or anything else that does the synchronization
3970 check. A QUIT command is no longer sent after a timeout.
3972 73. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3973 during host lookups.
3975 74. The defer_ok option of callout verification was not working if it was used
3976 when verifying addresses in header lines, that is, for this case:
3978 verify = header_sender/callout=defer_ok
3980 75. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3981 those file descriptors could be used for SMTP connections. If anything
3982 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3983 could be sent to the SMTP client, causing chaos. The daemon now opens
3984 stdin, stdout, and stderr to /dev/null when it puts itself into the
3985 background.
3987 76. Arrange for output from Perl's "warn" command to be written to Exim's main
3988 log by default. The user can override this with suitable Perl magic.
3990 77. The use of log_message on a "discard" ACL verb, which is supposed to add to
3991 the log message when discard triggers, was not working for the DATA ACL or
3992 for the non-SMTP ACL.
3994 78. Error message wording change in sieve.c.
3996 79. If smtp_accept_max_per_host was set, the number of connections could be
3997 restricted to fewer than expected, because the daemon was trying to set up
3998 a new connection before checking whether the processes handling previous
3999 connections had finished. The check for completed processes is now done
4000 earlier. On busy systems, this bug wouldn't be noticed because something
4001 else would have woken the daemon, and it would have reaped the completed
4002 process earlier.
4004 80. If a message was submitted locally by a user whose login name contained one
4005 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
4006 It caused a spool format error. I have fixed the spool reading code. A
4007 related problem was that the "from" clause in the Received: line became
4008 illegal because of the space(s). It is now covered by ${quote_local_part.
4010 81. Included the latest eximstats from Steve (adds average sizes to HTML Top
4011 tables).
4013 82. Updated OS/Makefile-AIX as per message from Mike Meredith.
4015 83. Patch from Sieve maintainer to fix unterminated string problem in
4016 "vacation" handling.
4018 84. Some minor changes to the Linux configuration files to help with other
4019 OS variants using glibc.
4021 85. One more patch for Sieve to update vacation handling to latest spec.
4024 ----------------------------------------------------
4025 See the note above about the 4.44 and 4.50 releases.
4026 ----------------------------------------------------
4029 Exim version 4.44
4030 -----------------
4032 1. Change 4.43/35 introduced a bug that caused file counts to be
4033 incorrectly computed when quota_filecount was set in an appendfile
4034 transport
4036 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
4037 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
4038 place.
4040 3. Give more explanation in the error message when the command for a transport
4041 filter fails to execute.
4043 4. There are several places where Exim runs a non-Exim command in a
4044 subprocess. The SIGUSR1 signal should be disabled for these processes. This
4045 was being done only for the command run by the queryprogram router. It is
4046 now done for all such subprocesses. The other cases are: ${run, transport
4047 filters, and the commands run by the lmtp and pipe transports.
4049 5. Some older OS have a limit of 256 on the maximum number of file
4050 descriptors. Exim was using setrlimit() to set 1000 as a large value
4051 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
4052 systems. I've change it so that if it can't get 1000, it tries for 256.
4054 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
4055 was an oversight, and furthermore, ever since the addition of extra
4056 controls (e.g. 4.43/32), the checks on when to allow different forms of
4057 "control" were broken. There should now be diagnostics for all cases when a
4058 control that does not make sense is encountered.
4060 7. $recipients is now available in the predata ACL (oversight).
4062 8. Tidy the search cache before the fork to do a delivery from a message
4063 received from the command line. Otherwise the child will trigger a lookup
4064 failure and thereby defer the delivery if it tries to use (for example) a
4065 cached ldap connection that the parent has called unbind on.
4067 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
4068 of $address_data from the recipient verification was clobbered by the
4069 sender verification.
4071 10. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
4072 was its contents. (It was OK if the option was not defined at all.)
4074 11. A "Completed" log line is now written for messages that are removed from
4075 the spool by the -Mrm option.
4077 12. $host_address is now set to the target address during the checking of
4078 ignore_target_hosts.
4080 13. When checking ignore_target_hosts for an ipliteral router, no host name was
4081 being passed; this would have caused $sender_host_name to have been used if
4082 matching the list had actually called for a host name (not very likely,
4083 since this list is usually IP addresses). A host name is now passed as
4084 "[x.x.x.x]".
4086 14. Changed the calls that set up the SIGCHLD handler in the daemon to use the
4087 code that specifies a non-restarting handler (typically sigaction() in
4088 modern systems) in an attempt to fix a rare and obscure crash bug.
4090 15. Narrowed the window for a race in the daemon that could cause it to ignore
4091 SIGCHLD signals. This is not a major problem, because they are used only to
4092 wake it up if nothing else does.
4094 16. A malformed maildirsize file could cause Exim to calculate negative values
4095 for the mailbox size or file count. Odd effects could occur as a result.
4096 The maildirsize information is now recalculated if the size or filecount
4097 end up negative.
4099 17. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
4100 support for a long time. Removed HAVE_SYS_VFS_H.
4102 18. Updated exipick to current release from John Jetmore.
4104 19. Allow an empty sender to be matched against a lookup in an address list.
4105 Previously the only cases considered were a regular expression, or an
4106 empty pattern.
4108 20. Exim went into a mad DNS lookup loop when doing a callout where the
4109 host was specified on the transport, if the DNS lookup yielded more than
4110 one IP address.
4112 21. The RFC2047 encoding function was originally intended for short strings
4113 such as real names; it was not keeping to the 75-character limit for
4114 encoded words that the RFC imposes. It now respects the limit, and
4115 generates multiple encoded words if necessary. To be on the safe side, I
4116 have increased the buffer size for the ${rfc2047: expansion operator from
4117 1024 to 2048 bytes.
4119 22. Failure to deliver a bounce message always caused it to be frozen, even if
4120 there was an errors_to setting on the router. The errors_to setting is now
4121 respected.
4123 23. If an IPv6 address is given for -bh or -bhc, it is now converted to the
4124 canonical form (fully expanded) before being placed in
4125 $sender_host_address.
4127 24. Updated eximstats to version 1.33
4129 25. Include certificate and key file names in error message when GnuTLS fails
4130 to set them up, because the GnuTLS error message doesn't include the name
4131 of the failing file when there is a problem reading it.
4133 26. Expand error message when OpenSSL has problems setting up cert/key files.
4134 As per change 25.
4136 27. Reset the locale to "C" after calling embedded Perl, in case it was changed
4137 (this can affect the format of dates).
4139 28. exim_tidydb, when checking for the continued existence of a message for
4140 which it has found a message-specific retry record, was not finding
4141 messages that were in split spool directories. Consequently, it was
4142 deleting retry records that should have stayed in existence.
4144 29. eximstats updated to version 1.35
4145 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
4146 1.35 - bugfix such that pie charts by volume are generated correctly
4148 30. The SPA authentication driver was not abandoning authentication and moving
4149 on to the next authenticator when an expansion was forced to fail,
4150 contradicting the general specification for all authenticators. Instead it
4151 was generating a temporary error. It now behaves as specified.
4153 31. The default ordering of permitted cipher suites for GnuTLS was pessimal
4154 (the order specifies the preference for clients). The order is now AES256,
4155 AES128, 3DES, ARCFOUR128.
4157 31. Small patch to Sieve code - explicitly set From: when gener