1 Change log file for Exim from version 4.21
2 -------------------------------------------
7 JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
8 and 3.4.4 - once the server is enabled to respond to an OCSP request
9 it does even when not requested, resulting in a stapling non-aware
10 client dropping the TLS connection.
12 TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
13 support variable-length bit vectors. No functional change.
15 TF/02 Improve the consistency of logging incoming and outgoing interfaces.
16 The I= interface field on outgoing lines is now after the H= remote
17 host field, same as incoming lines. There is a separate
18 outgoing_interface log selector which allows you to disable the
21 JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
22 If not running log_selector +smtp_connection the mainlog would be held
23 open indefinitely after a "too many connections" event, including to a
24 deleted file after a log rotate. Leave the per net connection logging
25 leaving it open for efficiency as that will be quickly detected by the
26 check on the next write.
28 HS/01 Bug 1671: Fix post transport crash.
29 Processing the wait-<transport> messages could crash the delivery
30 process if the message IDs didn't exist for some reason. When
31 using 'split_spool_directory=yes' the construction of the spool
32 file name failed already, exposing the same netto behaviour.
34 JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
35 mime_regex ACL conditions.
37 JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
38 to DSN fail messages (bounces): remote IP, remote greeting, remote response
39 to HELO, local diagnostic string.
41 JH/05 Downgrade message for a TLS-certificate-based authentication fail from
42 log line to debug. Even when configured with a tls authenticator many
43 client connections are expected to not authenticate in this way, so
44 an authenticate fail is not an error.
46 HS/02 Add the Exim version string to the process info. This way exiwhat
47 gives some more detail about the running daemon.
49 JH/06 Bug 1395: time-limit cacheing of DNS lookups, to the TTL value. This may
50 matter for fast-change records such as DNSBLs.
52 JH/07 Bug 1678: Always record an interface option value, if set, as part of a
53 retry record, even if constant. There may be multiple transports with
54 different interface settings and the retry behaviour needs to be kept
57 JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
59 JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
61 JH/10 Bug 840: fix log_defer_output option of pipe transport
63 JH/11 Bug 830: use same host for all RCPTS of a message, even under
64 hosts_randomize. This matters a lot when combined with mua_wrapper.
66 JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
67 ${quote_pgsql:<string>} operator.
69 JH/13 Bug 1708: avoid misaligned access in cached lookup.
71 JH/14 Change header file name for freeradius-client. Relevant if compiling
72 with Radius support; from the Gentoo tree and checked under Fedora.
74 JH/15 Bug 1712: Introduce $prdr_requested flag variable
76 JH/16 Bug 1714: Permit an empty string as expansion result for transport
77 option transport_filter, meaning no filtering.
79 JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
81 JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
82 defaults to "*" (all hosts). The variable is now available when not built
83 with TLS, default unset, mainly to enable keeping the testuite sane.
84 If a server certificate is not supplied (via tls_certificate) an error is
85 logged, and clients will find TLS connections fail on startup. Presumably
86 they will retry in-clear.
87 Packagers of Exim are strongly encouraged to create a server certificate
90 HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
91 with the $config_file variable.
93 JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
94 in transport context, after the attempt, and per-recipient. The latter type
95 is per host attempted. The event data is the error message, and the errno
96 information encodes the lookup type (A vs. MX) used for the (first) host,
97 and the trailing two digits of the smtp 4xx reponse.
99 GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
100 to write to mainlog (or rejectlog, paniclog) in the window between file
101 creation and permissions/ownership being changed. Particularly affects
102 installations where exicyclog is run as root, rather than exim user;
103 result is that the running daemon panics and dies.
105 JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
107 JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
108 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
109 "pri" and "weight". Note that the previous implicit priority given by the
110 list order is no longer honoured.
112 JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalisation
115 JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
116 by defining SUPPORT_SOCKS.
118 JH/26 Move PROXY support from Experimental to mainline, enabled for a build
119 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
120 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
121 variables are renamed to proxy_{local,external}_{address,port}.
123 JH/27 Move Internationalisation support from Experimental to mainline, enabled
124 for a build by defining SUPPORT_I18N
126 JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
127 of the query string, and make ${quote_redis:} do that quoting.
129 JH/29 Move Events support from Experimental to mainline, enabled by default
130 and removable for a build by defining DISABLE_EVENT.
132 JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
134 JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
135 cached by the daemon.
137 JH/32 Move Redis support from Experimental to mainline, enabled for a build
138 by defining LOOKUP_REDIS. The libhiredis library is required.
140 JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
141 keys are given for lookup.
143 JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
144 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
145 only supported when built with TLS support. The PolarSSL SHA routines
146 are still used when the TLS library is too old for convenient support.
148 JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
149 openssl_options), for security. OpenSSL forces this from version 1.1.0
150 server-side so match that on older versions.
152 JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
153 allocation for $value could be released as the expansion processing
154 concluded, but leaving the global pointer active for it.
156 JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
157 and to use the domains and local_parts ACL conditions.
159 JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
160 incorrectly not doubled on cutthrough transmission, hence seen as a
161 body-termination at the receiving system - resulting in truncated mails.
162 Commonly the sender saw a TCP-level error, and retransmitted the message
163 via the normal store-and-forward channel. This could result in duplicates
164 received - but deduplicating mailstores were liable to retain only the
165 initial truncated version.
167 JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
169 JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
171 JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
172 we're in there, support oversigning also; bug 1309.
174 JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
176 HS/04 Add support for keep_environment and add_environment options.
178 JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
179 either intentional arithmetic overflow during PRNG, or testing config-
182 JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
183 delivery resulted in actual delivery. Cancel cutthrough before DATA
186 JH/45 Fix cutthrough, when connection not opened by verify and target hard-
187 rejects a recipient: pass the reject to the originator.
189 JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
190 Many were false-positives and ignorable, but it's worth fixing the
197 JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
200 JH/02 The smtp transport option "multi_domain" is now expanded.
202 JH/03 The smtp transport now requests PRDR by default, if the server offers
205 JH/04 Certificate name checking on server certificates, when exim is a client,
206 is now done by default. The transport option tls_verify_cert_hostnames
207 can be used to disable this per-host. The build option
208 EXPERIMENTAL_CERTNAMES is withdrawn.
210 JH/05 The value of the tls_verify_certificates smtp transport and main options
211 default to the word "system" to access the system default CA bundle.
212 For GnuTLS, only version 3.0.20 or later.
214 JH/06 Verification of the server certificate for a TLS connection is now tried
215 (but not required) by default. The verification status is now logged by
216 default, for both outbound TLS and client-certificate supplying inbound
219 JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
222 JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
223 Status Notification (bounce) messages are now MIME format per RFC 3464.
224 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
225 under the control of the dsn_advertise_hosts option, and routers may
226 have a dsn_lasthop option.
228 JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
229 default, modifiable by a malware= option. The list separator for
230 the options can now be changed in the usual way. Bug 68.
232 JH/10 The smtp_receive_timeout main option is now expanded before use.
234 JH/11 The incoming_interface log option now also enables logging of the
235 local interface on delivery outgoing connections.
237 JH/12 The cutthrough-routing facility now supports multi-recipient mails,
238 if the interface and destination host and port all match.
240 JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
243 JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
244 Patch from Andrew Lewis.
246 JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
247 now supports optional time-restrictions, weighting, and priority
248 modifiers per server. Patch originally by <rommer@active.by>.
250 JH/16 The spamd_address main option now supports a mixed list of local
251 and remote servers. Remote servers can be IPv6 addresses, and
252 specify a port-range.
254 JH/17 Bug 68: The spamd_address main option now supports an optional
255 timeout value per server.
257 JH/18 Bug 1581: Router and transport options headers_add/remove can
258 now have the list separator specified.
260 JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
263 JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
266 JH/21 Support for the A6 type of dns record is withdrawn.
268 JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
269 rather than the verbs used.
271 JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
272 from 255 to 1024 chars.
274 JH/24 Verification callouts now attempt to use TLS by default.
276 HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
277 are generic router options now. The defaults didn't change.
279 JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
280 Original patch from Alexander Shikoff, worked over by JH.
282 HS/02 Bug 1575: exigrep falls back to autodetection of compressed
283 files if ZCAT_COMMAND is not executable.
285 JH/26 Bug 1539: Add timout/retry options on dnsdb lookups.
287 JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
289 JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
290 Normally benign, it bites when the pair was led to by a CNAME;
291 modern usage is to not canoicalize the domain to a CNAME target
292 (and we were inconsistent anyway for A-only vs AAAA+A).
294 JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
296 JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
297 when evaluating $sender_host_dnssec.
299 JH/31 Check the HELO verification lookup for DNSSEC, adding new
300 $sender_helo_dnssec variable.
302 JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
304 JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
306 JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
308 JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
309 documented as working, but never had. Support all but $spam_report.
311 JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
312 added for tls authenticator.
317 TL/01 When running the test suite, the README says that variables such as
318 no_msglog_check are global and can be placed anywhere in a specific
319 test's script, however it was observed that placement needed to be near
320 the beginning for it to behave that way. Changed the runtest perl
321 script to read through the entire script once to detect and set these
322 variables, reset to the beginning of the script, and then run through
323 the script parsing/test process like normal.
325 TL/02 The BSD's have an arc4random API. One of the functions to induce
326 adding randomness was arc4random_stir(), but it has been removed in
327 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
328 function when detected.
330 JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
331 cause callback expansion.
333 TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
334 syntax errors in an expansion can be treated as a string instead of
335 logging or causing an error, due to the internal use of bool_lax
336 instead of bool when processing it.
338 JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
339 server certificates when making smtp deliveries.
341 JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
343 JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
345 TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
347 TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
348 Merged patch from Sebastian Wiedenroth.
350 JH/05 Fix results-pipe from transport process. Several recipients, combined
351 with certificate use, exposed issues where response data items split
352 over buffer boundaries were not parsed properly. This eventually
353 resulted in duplicates being sent. This issue only became common enough
354 to notice due to the introduction of conection certificate information,
355 the item size being so much larger. Found and fixed by Wolfgang Breyha.
357 JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
358 size buffer was used, resulting in syntax errors when an expansion
361 JH/07 Add support for directories of certificates when compiled with a GnuTLS
362 version 3.3.6 or later.
364 JH/08 Rename the TPDA expermimental facility to Event Actions. The #ifdef
365 is EXPERIMENTAL_EVENT, the main-configuration and transport options
366 both become "event_action", the variables become $event_name, $event_data
367 and $event_defer_errno. There is a new variable $verify_mode, usable in
368 routers, transports and related events. The tls:cert event is now also
369 raised for inbound connections, if the main configuration event_action
372 TL/06 In test suite, disable OCSP for old versions of openssl which contained
373 early OCSP support, but no stapling (appears to be less than 1.0.0).
375 JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
376 server certificate names available under the smtp transport option
377 "tls_verify_cert_hostname" now do not permit multi-component wildcard
380 JH/10 Time-related extraction expansions from certificates now use the main
381 option "timezone" setting for output formatting, and are consistent
382 between OpenSSL and GnuTLS compilations. Bug 1541.
384 JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
385 encoded parameter in the incoming message. Bug 1558.
387 JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
388 include certificate info, eximon was claiming there were spoolfile
391 JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
393 JH/14 Log delivery-related information more consistently, using the sequence
394 "H=<name> [<ip>]" wherever possible.
396 TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
397 are problematic for Debian distribution, omit them from the release
400 JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
402 JH/16 Fix string representation of time values on 64bit time_t anchitectures.
405 JH/17 Fix a null-indirection in certextract expansions when a nondefault
406 output list separator was used.
411 TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
412 checkers that were complaining about end of non-void function with no
415 JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
416 This was a regression intruduced in 4.83 by another bugfix.
418 JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
420 TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
421 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
427 TF/01 Correctly close the server side of TLS when forking for delivery.
429 When a message was received over SMTP with TLS, Exim failed to clear up
430 the incoming connection properly after forking off the child process to
431 deliver the message. In some situations the subsequent outgoing
432 delivery connection happened to have the same fd number as the incoming
433 connection previously had. Exim would try to use TLS and fail, logging
434 a "Bad file descriptor" error.
436 TF/02 Portability fix for building lookup modules on Solaris when the xpg4
437 utilities have not been installed.
439 JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
440 temporary space as the ACL may create new global variables.
442 TL/01 LDAP support uses per connection or global context settings, depending
443 upon the detected version of the libraries at build time.
445 TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
446 to extract and use the src ip:port in logging and expansions as if it
447 were a direct connection from the outside internet. PPv2 support was
448 updated based on HAProxy spec change in May 2014.
450 JH/02 Add ${listextract {number}{list}{success}{fail}}.
452 TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
453 Properly escape header and check for NULL return.
455 PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
458 JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
460 TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
461 characters in header names, implemented as a verify condition.
462 Contributed by Michael Fischer v. Mollard.
464 TL/05 Rename SPF condition results err_perm and err_temp to standardized
465 results permerror and temperror. Previous values are deprecated but
466 still accepted. In a future release, err_perm and err_temp will be
467 completely removed, which will be a backward incompatibility if the
468 ACL tests for either of these two old results. Patch contributed by
469 user bes-internal on the mailing list.
471 JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
473 JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
474 selectors, in both main and reject logs.
476 JH/06 Log outbound-TLS and port details, subject to log selectors, for a
479 JH/07 Add malware type "sock" for talking to simple daemon.
481 JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
483 JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
484 routers/transports under cutthrough routing.
486 JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
487 numbers. Touch up "bool" conditional to keep the same definition.
489 TL/06 Remove duplicated language in spec file from 4.82 TL/16.
491 JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
493 JH/12 Expand items in router/transport headers_add or headers_remove lists
494 individually rather than the list as a whole. Bug 1452.
496 Required for reasonable handling of multiple headers_ options when
497 they may be empty; requires that headers_remove items with embedded
498 colons must have them doubled (or the list-separator changed).
500 TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
501 view the policy declared in the DMARC record. Currently, $dmarc_status
502 is a combined value of both the record presence and the result of the
505 JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
507 JH/14 New options dnssec_request_domains, dnssec_require_domains on the
508 dnslookup router and the smtp transport (applying to the forward
511 TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
512 of ldap servers used for a specific lookup. Patch provided by Heiko
515 JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
516 New variable $lookup_dnssec_authenticated for observability.
518 TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
519 Patch submitted by Lars Timman.
521 JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
523 TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
524 Requires trusted mode and valid format message id, aborts otherwise.
525 Patch contributed by Heiko Schlichting.
527 JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
528 certextract with support for various fields. Bug 1358.
530 JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
531 is requested by default, modifiable by smtp transport option
534 JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
535 operate on certificate variables to give certificate fingerprints
536 Also new ${sha256:cert_variable}.
538 JH/23 The PRDR feature is moved from being Experimental into the mainline.
540 TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
541 Christian Aistleitner.
543 JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
545 TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
546 file. Patch from Wolfgang Breyha.
548 JH/25 Expand the coverage of the delivery $host and $host_address to
549 client authenticators run in verify callout. Bug 1476.
551 JH/26 Port service names are now accepted for tls_on_connect_ports, to
552 align with daemon_smtp_ports. Bug 72.
554 TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
555 support and error reporting did not work properly.
557 TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
558 and is readable. Patch from Andrew Colin Kissa.
560 TL/14 Enhance documentation of ${run expansion and how it parses the
561 commandline after expansion, particularly in the case when an
562 unquoted variable expansion results in an empty value.
564 JH/27 The TLS SNI feature was broken in 4.82. Fix it.
566 PP/02 Fix internal collision of T_APL on systems which support RFC3123
567 by renaming away from it. Addresses GH issue 15, reported by
570 JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
572 TL/15 SECURITY: prevent double expansion in math comparison functions
573 (can expand unsanitized data). Not remotely exploitable.
580 PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
582 PP/02 Make -n do something, by making it not do something.
583 When combined with -bP, the name of an option is not output.
585 PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
588 PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
589 $sender_host_name and config options to manage this, and basic check
592 PP/05 DSCP support for outbound connections and control modifier for inbound.
594 PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
595 (Only plugin which currently uses this is kerberos4, which nobody should
596 be using, but we should make it available and other future plugins might
597 conceivably use it, even though it would break NAT; stuff *should* be
598 using channel bindings instead).
600 PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
601 name; added for Sendmail compatibility; requires admin caller.
602 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
603 just ignore it); requires trusted caller.
604 Also parse but ignore: -Ac -Am -X<logfile>
607 TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
609 TL/02 Add +smtp_confirmation as a default logging option.
611 TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
612 Patch by Magnus Holmgren from 2007-02-20.
614 TL/04 Bugzilla 1281 - Spec typo.
615 Bugzilla 1283 - Spec typo.
616 Bugzilla 1290 - Spec grammar fixes.
618 TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
620 TL/06 Add Experimental DMARC support using libopendmarc libraries.
622 TL/07 Fix an out of order global option causing a segfault. Reported to dev
623 mailing list by by Dmitry Isaikin.
625 JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
627 JH/02 Support "G" suffix to numbers in ${if comparisons.
629 PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
631 NM/01 Bugzilla 1197 - Spec typo
632 Bugzilla 1196 - Spec examples corrections
634 JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
636 PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
637 gnutls_enable_pkcs11, but renamed to more accurately indicate its
640 PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
641 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
643 JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
644 "acl {{name}{arg}...}", and optional args on acl condition
647 JH/05 Permit multiple router/transport headers_add/remove lines.
649 JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
651 JH/07 Avoid using a waiting database for a single-message-only transport.
652 Performance patch from Paul Fisher. Bugzilla 1262.
654 JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
657 JH/09 Add $headers_added variable, with content from use of ACL modifier
658 add_header (but not yet added to the message). Bugzilla 199.
660 JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
661 Pulled from Bugzilla 817 by Wolfgang Breyha.
663 PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
665 (nb: this is the same fix as in Exim 4.80.1)
667 JH/11 Add A= logging on delivery lines, and a client_set_id option on
670 JH/12 Add optional authenticated_sender logging to A= and a log_selector
673 PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
675 PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
676 advertise SMTP AUTH mechanism to us, instead of a generic
677 protocol violation error. Also, make Exim more robust to bad
678 data from the Dovecot auth socket.
680 TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
682 When a queue runner is handling a message, Exim first routes the
683 recipient addresses, during which it prunes them based on the retry
684 hints database. After that it attempts to deliver the message to
685 any remaining recipients. It then updates the hints database using
688 So if a recipient address works intermittently, it can get repeatedly
689 deferred at routing time. The retry hints record remains fresh so the
690 address never reaches the final cutoff time.
692 This is a fairly common occurrence when a user is bumping up against
693 their storage quota. Exim had some logic in its local delivery code
694 to deal with this. However it did not apply to per-recipient defers
695 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
697 This change adds a proper retry rule check during routing so that the
698 final cutoff time is checked against the message's age. We only do
699 this check if there is an address retry record and there is not a
700 domain retry record; this implies that previous attempts to handle
701 the address had the retry_use_local_parts option turned on. We use
702 this as an approximation for the destination being like a local
703 delivery, as in LMTP.
705 I suspect this new check makes the old local delivery cutoff check
706 redundant, but I have not verified this so I left the code in place.
708 TF/02 Correct gecos expansion when From: is a prefix of the username.
710 Test 0254 submits a message to Exim with the header
714 When I ran the test suite under the user fanf2, Exim expanded
715 the header to contain my full name, whereas it should have added
716 a Resent-Sender: header. It erroneously treats any prefix of the
717 username as equal to the username.
719 This change corrects that bug.
721 GF/01 DCC debug and logging tidyup
722 Error conditions log to paniclog rather than rejectlog.
723 Debug lines prefixed by "DCC: " to remove any ambiguity.
725 TF/03 Avoid unnecessary rebuilds of lookup-related code.
727 PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
728 Bug spotted by Jeremy Harris; was flawed since initial commit.
729 Would have resulted in OCSP responses post-SNI triggering an Exim
730 NULL dereference and crash.
732 JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
734 PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
735 Bug detection, analysis and fix by Samuel Thibault.
736 Bugzilla 1331, Debian bug #698092.
738 SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
740 JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
741 Server implementation by Todd Lyons, client by JH.
742 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
743 config variable "prdr_enable" controls whether the server
744 advertises the facility. If the client requests PRDR a new
745 acl_data_smtp_prdr ACL is called once for each recipient, after
746 the body content is received and before the acl_smtp_data ACL.
747 The client is controlled by bolth of: a hosts_try_prdr option
748 on the smtp transport, and the server advertisement.
749 Default client logging of deliveries and rejections involving
750 PRDR are flagged with the string "PRDR".
752 PP/16 Fix problems caused by timeouts during quit ACLs trying to double
753 fclose(). Diagnosis by Todd Lyons.
755 PP/17 Update configure.default to handle IPv6 localhost better.
756 Patch by Alain Williams (plus minor tweaks).
759 PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
760 This is now consistent with GnuTLS, and is now documented: the
761 previous undocumented portable approach to treating the option as
762 unset was to force an expansion failure. That still works, and
763 an empty string is now equivalent.
765 PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
766 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
767 not performing validation itself.
769 PP/20 Added force_command boolean option to pipe transport.
770 Patch from Nick Koston, of cPanel Inc.
772 JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
775 TF/04 Added udpsend ACL modifer and hexquote expansion operator
777 PP/21 Fix eximon continuous updating with timestamped log-files.
778 Broken in a format-string cleanup in 4.80, missed when I repaired the
779 other false fix of the same issue.
780 Report and fix from Heiko Schlichting.
783 PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
784 Report from Prashanth Katuri.
786 PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
787 It's SecureTransport, so affects any MacOS clients which use the
788 system-integrated TLS libraries, including email clients.
790 PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
791 using a MIME ACL for non-SMTP local injection.
792 Report and assistance in diagnosis by Warren Baker.
794 TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
796 JH/16 Fix comparisons for 64b. Bugzilla 1385.
798 TL/09 Add expansion variable $authenticated_fail_id to keep track of
799 last id that failed so it may be referenced in subsequent ACL's.
801 TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
804 TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
805 ldap library initialization, allowing self-signed CA's to be
806 used. Also properly sets require_cert option later in code by
807 using NULL (global ldap config) instead of ldap handle (per
808 session). Bug diagnosis and testing by alxgomz.
810 TL/12 Enhanced documentation in the ratelimit.pl script provided in
811 the src/util/ subdirectory.
813 TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
814 renamed to Transport Post Delivery Action by Jeremy Harris, as
817 TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
818 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
819 redis_servers = needs to be configured which will be used by the redis
820 lookup. Patch from Warren Baker, of The Packet Hub.
822 TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
824 TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
825 hostname or reverse DNS when processing a host list. Used suggestions
826 from multiple comments on this bug.
828 TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
830 TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
831 Missed a few lines, added it to make the runtest require no keyboard
834 TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
835 contains upper case chars. Make router use caseful_local_part.
837 TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
838 support when GnuTLS has been built with p11-kit.
844 PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
846 This, or similar/improved, will also be change PP/11 of 4.82.
852 PP/01 Handle short writes when writing local log-files.
853 In practice, only affects FreeBSD (8 onwards).
854 Bugzilla 1053, with thanks to Dmitry Isaikin.
856 NM/01 Bugzilla 949 - Documentation tweak
858 NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
861 NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
863 PP/02 Implemented gsasl authenticator.
865 PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
867 PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
868 `pkg-config foo` for cflags/libs.
870 PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
871 with rest of GSASL and with heimdal_gssapi.
873 PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
874 `pkg-config foo` for cflags/libs for the TLS implementation.
876 PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
877 properties get this fed in as external SSF. A number of robustness
878 and debugging improvements to the cyrus_sasl authenticator.
880 PP/08 cyrus_sasl server now expands the server_realm option.
882 PP/09 Bugzilla 1214 - Log authentication information in reject log.
883 Patch by Jeremy Harris.
885 PP/10 Added dbmjz lookup type.
887 PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
889 PP/12 MAIL args handles TAB as well as SP, for better interop with
890 non-compliant senders.
891 Analysis and variant patch by Todd Lyons.
893 NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
894 Bug report from Lars Müller <lars@samba.org> (via SUSE),
895 Patch from Dirk Mueller <dmueller@suse.com>
897 PP/13 tls_peerdn now print-escaped for spool files.
898 Observed some $tls_peerdn in wild which contained \n, which resulted
899 in spool file corruption.
901 PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
902 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
903 or write after TLS renegotiation, which otherwise led to messages
906 TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
907 as a tracking header (ie: a signed header comes before the signature).
908 Patch from Wolfgang Breyha.
910 JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
911 comma-sep list; embedded commas doubled.
913 JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
915 PP/15 LDAP: Check for errors of TLS initialisation, to give correct
917 Report and patch from Dmitry Banschikov.
919 PP/16 Removed "dont_insert_empty_fragments" fron "openssl_options".
920 Removed SSL_clear() after SSL_new() which led to protocol negotiation
921 failures. We appear to now support TLS1.1+ with Exim.
923 PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
924 lets Exim select keys and certificates based upon TLS SNI from client.
925 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
926 before an outbound SMTP session. New log_selector, +tls_sni.
928 PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
929 NULL dereference. Report and patch from Alun Jones.
931 PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
932 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
933 Not seeing resolver debug output on NetBSD, but suspect this is a
934 resolver implementation change.
936 PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
937 Left warnings. Added "eximon gdb" invocation mode.
939 PP/21 Defaulting "accept_8bitmime" to true, not false.
941 PP/22 Added -bw for inetd wait mode support.
943 PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
944 locate the relevant includes and libraries. Made this the default.
946 PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
947 Bugzilla 1246, report and most of solution from Tomasz Kusy.
949 JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
950 This may cause build issues on older platforms.
952 PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
953 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
954 gnutls_require_mac & gnutls_require_protocols (no longer supported).
955 Added SNI support via GnuTLS too.
956 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
958 PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
960 PP/27 Applied dnsdb SPF support patch from Janne Snabb.
961 Applied second patch from Janne, implementing suggestion to default
962 multiple-strings-in-record handling to match SPF spec.
964 JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
966 PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
967 read-only, out of scope).
968 Patch from Wolfgang Breyha, report from Stuart Northfield.
970 PP/29 Fix three issues highlighted by clang analyser static analysis.
971 Only crash-plausible issue would require the Cambridge-specific
972 iplookup router and a misconfiguration.
973 Report from Marcin Mirosław.
975 PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
977 PP/31 %D in printf continues to cause issues (-Wformat=security), so for
978 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
979 As part of this, removing so much warning spew let me fix some minor
980 real issues in debug logging.
982 PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
983 assignment on my part. Fixed.
985 PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
986 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
987 Janne Snabb (who went above and beyond: thank you).
989 PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
990 string otherwise requires a connection and a bunch more work and it's
991 relatively easy to get wrong. Should also expose TLS library linkage
994 PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
995 64-bit ${eval} (JH/03).
997 PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
998 GNU libc to support some of the 64-bit stuff, should not lead to
999 conflicts. Defined before os.h is pulled in, so if a given platform
1000 needs to override this, it can.
1002 PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1003 protection layer was required, which is not implemented.
1004 Bugzilla 1254, patch from Wolfgang Breyha.
1006 PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1007 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1008 tls_dhparam take prime identifiers. Also unbreak combination of
1009 OpenSSL+DH_params+TLSSNI.
1011 PP/39 Disable SSLv2 by default in OpenSSL support.
1017 PP/01 Solaris build fix for Oracle's LDAP libraries.
1018 Bugzilla 1109, patch from Stephen Usher.
1020 TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1022 TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1025 TF/02 Fix a couple more cases where we did not log the error message
1026 when unlink() failed. See also change 4.74-TF/03.
1028 TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1029 lock up or crash if it happened to be inside a call to libc when it
1030 got a SIGUSR1 from exiwhat.
1032 The SIGUSR1 handler appends the current process status to the process
1033 log which is later printed by exiwhat. It used to use the general
1034 purpose logging code to do this, but several functions it calls are
1035 not safe for signals.
1037 The new output code in the SIGUSR1 handler is specific to the process
1038 log, and simple enough that it's easy to inspect for signal safety.
1039 Removing some special cases also simplifies the general logging code.
1040 Removing the spurious timestamps from the process log simplifies
1043 TF/04 Improved ratelimit ACL condition.
1045 The /noupdate option has been deprecated in favour of /readonly which
1046 has clearer semantics. The /leaky, /strict, and /readonly update modes
1047 are mutually exclusive. The update mode is no longer included in the
1048 database key; it just determines when the database is updated. (This
1049 means that when you upgrde Exim will forget old rate measurements.)
1051 Exim now checks that the per_* options are used with an update mode that
1052 makes sense for the current ACL. For example, when Exim is processing a
1053 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1054 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1055 must specify per_mail/readonly. If you omit the update mode it defaults to
1056 /leaky where that makes sense (as before) or /readonly where required.
1058 The /noupdate option is now undocumented but still supported for
1059 backwards compatibility. It is equivalent to /readonly except that in
1060 ACLs where /readonly is required you may specify /leaky/noupdate or
1061 /strict/noupdate which are treated the same as /readonly.
1063 A useful new feature is the /count= option. This is a generalization
1064 of the per_byte option, so that you can measure the throughput of other
1065 aggregate values. For example, the per_byte option is now equivalent
1066 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1068 The per_rcpt option has been generalized using the /count= mechanism
1069 (though it's more complicated than the per_byte equivalence). When it is
1070 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1071 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1072 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1073 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1074 Note that using per_rcpt with a non-readonly update mode in more than
1075 one ACL will cause the recipients to be double-counted. (The per_mail
1076 and per_byte options don't have this problem.)
1078 The handling of very low rates has changed slightly. If the computed rate
1079 is less than the event's count (usually one) then this event is the first
1080 after a long gap. In this case the rate is set to the same as this event's
1081 count, so that the first message of a spam run is counted properly.
1083 The major new feature is a mechanism for counting the rate of unique
1084 events. The new per_addr option counts the number of different
1085 recipients that someone has sent messages to in the last time period. It
1086 behaves like per_rcpt if all the recipient addresses are different, but
1087 duplicate recipient addresses do not increase the measured rate. Like
1088 the /count= option this is a general mechanism, so the per_addr option
1089 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1090 example, measure the rate that a client uses different sender addresses
1091 with the options per_mail/unique=$sender_address. There are further
1092 details in the main documentation.
1094 TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1096 TF/06 Removed a few PCRE remnants.
1098 TF/07 Automatically extract Exim's version number from tags in the git
1099 repository when doing development or release builds.
1101 PP/02 Raise smtp_cmd_buffer_size to 16kB.
1102 Bugzilla 879. Patch from Paul Fisher.
1104 PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1105 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1108 PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1110 PP/05 Variable $av_failed, true if the AV scanner deferred.
1111 Bugzilla 1078. Patch from John Horne.
1113 PP/06 Stop make process more reliably on build failure.
1114 Bugzilla 1087. Patch from Heiko Schlittermann.
1116 PP/07 Make maildir_use_size_file an _expandable_ boolean.
1117 Bugzilla 1089. Patch from Heiko Schlittermann.
1119 PP/08 Handle ${run} returning more data than OS pipe buffer size.
1120 Bugzilla 1131. Patch from Holger Weiß.
1122 PP/09 Handle IPv6 addresses with SPF.
1123 Bugzilla 860. Patch from Wolfgang Breyha.
1125 PP/10 GnuTLS: support TLS 1.2 & 1.1.
1127 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1130 PP/11 match_* no longer expand right-hand-side by default.
1131 New compile-time build option, EXPAND_LISTMATCH_RHS.
1132 New expansion conditions, "inlist", "inlisti".
1134 PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1136 PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
1138 PP/14 fix log_write() format string regression from TF/03.
1139 Bugzilla 1152. Patch from Dmitry Isaikin.
1145 PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1147 PP/02 Harmonised TLS library version reporting; only show if debugging.
1148 Layout now matches that introduced for other libraries in 4.74 PP/03.
1150 PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1152 PP/04 New "dns_use_edns0" global option.
1154 PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1157 PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1158 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
1160 TK/01 Updated PolarSSL code to 0.14.2.
1161 Bugzilla 1097. Patch from Andreas Metzler.
1163 PP/07 Catch divide-by-zero in ${eval:...}.
1164 Fixes bugzilla 1102.
1166 PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1169 TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
1170 format-string attack -- SECURITY: remote arbitrary code execution.
1172 TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1173 time unintentionally subject to list matching rules, letting the header
1174 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1175 arbitrary string expansion). This allowed for information disclosure.
1177 PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1178 INT_MIN/-1 -- value coerced to INT_MAX.
1184 NM/01 Workround for PCRE version dependency in version reporting
1187 TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1188 This fixes portability to compilers other than gcc, notably
1189 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1191 TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1192 makefiles for portability to HP-UX and POSIX correctness.
1194 PP/01 Permit LOOKUP_foo enabling on the make command-line.
1195 Also via indented variable definition in the Makefile.
1196 (Debugging by Oliver Heesakkers).
1198 PP/02 Restore caching of spamd results with expanded spamd_address.
1199 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1201 PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1202 Improves build reliability. Fix from: Frank Elsner
1204 NM/02 Fix wide character breakage in the rfc2047 coding
1205 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1207 NM/03 Allow underscore in dnslist lookups
1208 Fixes bug 1026. Patch from Graeme Fowler
1210 PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1211 Code patches from Adam Ciarcinski of NetBSD.
1213 NM/04 Fixed exiqgrep to cope with mailq missing size issue
1216 PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1217 is logged, to avoid truncation. Patch from John Horne.
1219 PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1220 Patch from Jakob Hirsch.
1222 PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1223 SQL string expansion failure details.
1224 Patch from Andrey Oktyabrski.
1226 PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1227 Patch from Simon Arlott.
1229 PP/09 New lookups functionality failed to compile on old gcc which rejects
1230 extern declarations in function scope.
1231 Patch from Oliver Fleischmann
1233 PP/10 Use sig_atomic_t for flags set from signal handlers.
1234 Check getgroups() return and improve debugging.
1235 Fixed developed for diagnosis in bug 927 (which turned out to be
1238 PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1239 Patch from Mark Zealey.
1241 PP/12 Bugzilla 1056: Improved spamd server selection.
1242 Patch from Mark Zealey.
1244 PP/13 Bugzilla 1086: Deal with maildir quota file races.
1245 Based on patch from Heiko Schlittermann.
1247 PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1248 Patch from Uwe Doering, sign-off by Michael Haardt.
1250 NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1251 variable declaration deep within a block. Bug and patch from
1254 PP/15 lookups-Makefile IRIX compatibilty coercion.
1256 PP/16 Make DISABLE_DKIM build knob functional.
1258 NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1259 Patch by Simon Arlott
1261 TF/03 Fix valgrind.h portability to C89 compilers that do not support
1262 variable argument macros. Our copy now differs from upstream.
1268 TF/01 Failure to get a lock on a hints database can have serious
1269 consequences so log it to the panic log.
1271 TF/02 Log LMTP confirmation messages in the same way as SMTP,
1272 controlled using the smtp_confirmation log selector.
1274 TF/03 Include the error message when we fail to unlink a spool file.
1276 DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1277 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1278 for maintaining out-of-tree patches for some time.
1280 PP/01 Bugzilla 139: Documentation and portability issues.
1281 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1282 Handle per-OS dynamic-module compilation flags.
1284 PP/02 Let /dev/null have normal permissions.
1285 The 4.73 fixes were a little too stringent and complained about the
1286 permissions on /dev/null. Exempt it from some checks.
1287 Reported by Andreas M. Kirchwitz.
1289 PP/03 Report version information for many libraries, including
1290 Exim version information for dynamically loaded libraries. Created
1291 version.h, now support a version extension string for distributors
1292 who patch heavily. Dynamic module ABI change.
1294 PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1295 privilege escalation vulnerability whereby the Exim run-time user
1296 can cause root to append content of the attacker's choosing to
1299 PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1302 PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1303 If dropping privileges for untrusted macros, we disabled normal logging
1304 on the basis that it would fail; for the Exim run-time user, this is not
1305 the case, and it resulted in successful deliveries going unlogged.
1306 Fixed. Reported by Andreas Metzler.
1312 PP/01 Date: & Message-Id: revert to normally being appended to a message,
1313 only prepend for the Resent-* case. Fixes regression introduced in
1314 Exim 4.70 by NM/22 for Bugzilla 607.
1316 PP/02 Include check_rfc2047_length in configure.default because we're seeing
1317 increasing numbers of administrators be bitten by this.
1319 JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1321 PP/03 Bugzilla 994: added openssl_options main configuration option.
1323 PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1325 PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
1327 PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1329 PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
1330 without a peer certificate, leading to a segfault because of an
1331 assumption that peers always have certificates. Be a little more
1332 paranoid. Problem reported by Martin Tscholak.
1334 PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
1335 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
1336 NB: ClamAV planning to remove STREAM in "middle of 2010".
1337 CL also introduces -bmalware, various -d+acl logging additions and
1338 more caution in buffer sizes.
1340 PP/09 Implemented reverse_ip expansion operator.
1342 PP/10 Bugzilla 937: provide a "debug" ACL control.
1344 PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
1346 PP/12 Bugzilla 973: Implement --version.
1348 PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
1350 PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
1352 PP/15 Bugzilla 816: support multiple condition rules on Routers.
1354 PP/16 Add bool_lax{} expansion operator and use that for combining multiple
1355 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
1356 ignore trailing whitespace.
1358 JJ/02 prevent non-panic DKIM error from being sent to paniclog
1360 JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
1363 PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
1364 Notification from Dr Andrew Aitchison.
1366 PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
1367 ExtendedDetectionInfo response format.
1368 Notification from John Horne.
1370 PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
1373 PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
1374 XSL and documented dependency on system catalogs, with examples of how
1377 DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
1380 DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
1381 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
1382 configuration file which is writeable by the Exim user or group.
1384 DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
1385 of configuration files to cover files specified with the -C option if
1386 they are going to be used with root privileges, not just the default
1389 DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
1390 option (effectively making it always true).
1392 DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
1393 files to be used while preserving root privileges.
1395 DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
1396 that rogue child processes cannot use them.
1398 PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
1399 run-time user, instead of root.
1401 PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
1402 Exim run-time user without dropping privileges.
1404 DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
1405 result string, instead of calling string_vformat() twice with the same
1408 DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
1409 for other users. Others should always drop root privileges if they use
1410 -C on the command line, even for a whitelisted configure file.
1412 DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
1414 NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
1420 JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
1421 $data_path, and $header_path variables; fixed documentation bugs and
1424 JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
1425 exipick to access non-standard spools, including the "frozen" queue
1428 NM/01 Bugzilla 965: Support mysql stored procedures.
1429 Patch from Alain Williams
1431 NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
1433 NM/03 Bugzilla 955: Documentation fix for max_rcpts.
1434 Patch from Andreas Metzler
1436 NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
1437 Patch from Kirill Miazine
1439 NM/05 Bugzilla 671: Added umask to procmail example.
1441 JJ/03 installed exipick 20100323.0, fixing doc bug
1443 NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
1444 directory. Notification and patch from Dan Rosenberg.
1446 TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
1448 TK/02 Improve log output when DKIM signing operation fails.
1450 MH/01 Treat the transport option dkim_domain as a colon separated
1451 list, not as a single string, and sign the message with each element,
1452 omitting multiple occurences of the same signer.
1454 NM/07 Null terminate DKIM strings, Null initialise DKIM variable
1455 Bugzilla 985, 986. Patch by Simon Arlott
1457 NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
1458 Patch by Simon Arlott
1460 PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
1461 MBX locking. Notification from Dan Rosenberg.
1467 TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
1469 NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
1471 NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
1473 NM/03 Bugzilla 847: Enable DNSDB lookup by default.
1475 NM/04 Bugzilla 915: Flag broken perl installation during build.
1481 TK/01 Added patch by Johannes Berg that expands the main option
1482 "spamd_address" if it starts with a dollar sign.
1484 TK/02 Write list of recipients to X-Envelope-Sender header when building
1485 the mbox-format spool file for content scanning (suggested by Jakob
1488 TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
1489 (http://www.dcc-servers.net/) support via dccifd. Activated by
1490 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
1492 TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
1493 by Mark Daniel Reidel <mr@df.eu>.
1495 NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
1496 When building exim an external PCRE library is now needed -
1497 PCRE is a system library on the majority of modern systems.
1498 See entry on PCRE_LIBS in EDITME file.
1500 NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
1501 conversation. Added nologin parameter to request.
1502 Patch contributed by Kirill Miazine.
1504 TF/01 Do not log submission mode rewrites if they do not change the address.
1506 TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
1508 NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
1509 log files in place. Contributed by Roberto Lima.
1511 NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
1513 TF/03 Bugzilla 615: When checking the local_parts router precondition
1514 after a local_part_suffix or local_part_prefix option, Exim now
1515 does not use the address's named list lookup cache, since this
1516 contains cached lookups for the whole local part.
1518 NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
1519 Robert Millan. Documentation is in experimental-spec.txt.
1521 TF/04 Bugzilla 668: Fix parallel build (make -j).
1523 NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
1525 NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
1526 Patch provided by Jan Srzednicki.
1528 TF/05 Leading white space used to be stripped from $spam_report which
1529 wrecked the formatting. Now it is preserved.
1531 TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
1532 that they are available at delivery time.
1534 TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
1536 TF/08 TLS error reporting now respects the incoming_interface and
1537 incoming_port log selectors.
1539 TF/09 Produce a more useful error message if an SMTP transport's hosts
1540 setting expands to an empty string.
1542 NM/06 Bugzilla 744: EXPN did not work under TLS.
1543 Patch provided by Phil Pennock.
1545 NM/07 Bugzilla 769: Extraneous comma in usage fprintf
1546 Patch provided by Richard Godbee.
1548 NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
1549 acl_smtp_notquit, added index entry.
1551 NM/09 Bugzilla 787: Potential buffer overflow in string_format.
1552 Patch provided by Eugene Bujak.
1554 NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
1555 accept(). Patch provided by Maxim Dounin.
1557 NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
1558 Patch provided by Phil Pennock.
1560 NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
1562 NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
1563 Patch provided by Brad "anomie" Jorsch.
1565 NM/14 Bugzilla 622: Added timeout setting to transport filter.
1566 Patch provided by Dean Brooks.
1568 TK/05 Add native DKIM support (does not depend on external libraries).
1570 NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
1571 Patch provided by Graeme Fowler.
1573 NM/16 Bugzilla 851: Documentation example syntax fix.
1575 NM/17 Changed NOTICE file to remove references to embedded PCRE.
1577 NM/18 Bugzilla 894: Fix issue with very long lines including comments in
1580 NM/19 Bugzilla 745: TLS version reporting.
1581 Patch provided by Phil Pennock.
1583 NM/20 Bugzilla 167: bool: condition support.
1584 Patch provided by Phil Pennock.
1586 NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
1587 clients. Patch provided by Phil Pennock.
1589 NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
1590 Patch provided by Brad "anomie" Jorsch.
1592 NM/23 Bugzilla 687: Fix misparses in eximstats.
1593 Patch provided by Heiko Schlittermann.
1595 NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
1596 Patch provided by Heiko Schlittermann.
1598 NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1599 plus update to original patch.
1601 NM/26 Bugzilla 799: Documentation correction for ratelimit.
1603 NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
1604 Patch provided by David Brownlee.
1606 NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
1608 NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
1610 NM/30 Bugzilla 888: TLS documentation bugfixes.
1612 NM/31 Bugzilla 896: Dovecot buffer overrun fix.
1614 NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
1615 Unlike the original bugzilla I have changed all shell scripts in src tree.
1617 NM/33 Bugzilla 898: Transport filter timeout fix.
1618 Patch by Todd Rinaldo.
1620 NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
1621 Patch by Serge Demonchaux.
1623 NM/35 Bugzilla 39: Base64 decode bug fixes.
1624 Patch by Jakob Hirsch.
1626 NM/36 Bugzilla 909: Correct connect() call in dcc code.
1628 NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
1630 NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
1632 NM/39 Bugzilla 911: Fixed MakeLinks build script.
1638 TK/01 Add preliminary DKIM support. Currently requires a forked version of
1639 ALT-N's libdkim that I have put here:
1640 http://duncanthrax.net/exim-experimental/
1642 Note to Michael Haardt: I had to rename some vars in sieve.c. They
1643 were called 'true' and it seems that C99 defines that as a reserved
1644 keyword to be used with 'bool' variable types. That means you could
1645 not include C99-style headers which use bools without triggering
1646 build errors in sieve.c.
1648 NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
1649 as mailq or other aliases. Changed the --help handling significantly
1650 to do whats expected. exim_usage() emits usage/help information.
1652 SC/01 Added the -bylocaldomain option to eximstats.
1654 NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
1656 NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
1658 NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
1664 PH/01 Another patch from the Sieve maintainer.
1666 PH/02 When an IPv6 address is converted to a string for single-key lookup
1667 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
1668 dots are used instead of colons so that keys in lsearch files need not
1669 contain colons. This was done some time before quoting was made available
1670 in lsearch files. However, iplsearch files do require colons in IPv6 keys
1671 (notated using the quote facility) so as to distinguish them from IPv4
1672 keys. This meant that lookups for IP addresses in host lists did not work
1673 for iplsearch lookups.
1675 This has been fixed by arranging for IPv6 addresses to be expressed with
1676 colons if the lookup type is iplsearch. This is not incompatible, because
1677 previously such lookups could never work.
1679 The situation is now rather anomolous, since one *can* have colons in
1680 ordinary lsearch keys. However, making the change in all cases is
1681 incompatible and would probably break a number of configurations.
1683 TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
1686 MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
1687 conversion specification without a maximum field width, thereby enabling
1688 a rogue spamd server to cause a buffer overflow. While nobody in their
1689 right mind would setup Exim to query an untrusted spamd server, an
1690 attacker that gains access to a server running spamd could potentially
1691 exploit this vulnerability to run arbitrary code as the Exim user.
1693 TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
1694 $primary_hostname instead of what libspf2 thinks the hosts name is.
1696 MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
1697 a directory entry by the name of the lookup key. Previously, if a
1698 symlink pointed to a non-existing file or a file in a directory that
1699 Exim lacked permissions to read, a lookup for a key matching that
1700 symlink would fail. Now it is enough that a matching directory entry
1701 exists, symlink or not. (Bugzilla 503.)
1703 PH/03 The body_linecount and body_zerocount variables are now exported in the
1706 PH/04 Added the $dnslist_matched variable.
1708 PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
1709 This means they are set thereafter only if the connection becomes
1712 PH/06 Added the client_condition to authenticators so that some can be skipped
1713 by clients under certain conditions.
1715 PH/07 The error message for a badly-placed control=no_multiline_responses left
1716 "_responses" off the end of the name.
1718 PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
1720 PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
1721 (without spaces) instead of just copying the configuration text.
1723 PH/10 Added the /noupdate option to the ratelimit ACL condition.
1725 PH/11 Added $max_received_linelength.
1727 PH/12 Added +ignore_defer and +include_defer to host lists.
1729 PH/13 Installed PCRE version 7.2. This needed some changes because of the new
1730 way in which PCRE > 7.0 is built.
1732 PH/14 Implemented queue_only_load_latch.
1734 PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
1735 MAIL command. The effect was to mangle the value on 64-bit systems.
1737 PH/16 Another patch from the Sieve maintainer.
1739 PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
1741 PH/18 If a system quota error occurred while trying to create the file for
1742 a maildir delivery, the message "Mailbox is full" was not appended to the
1743 bounce if the delivery eventually timed out. Change 4.67/27 below applied
1744 only to a quota excession during the actual writing of the file.
1746 PH/19 It seems that peer DN values may contain newlines (and other non-printing
1747 characters?) which causes problems in log lines. The DN values are now
1748 passed through string_printing() before being added to log lines.
1750 PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
1751 and InterBase are left for another time.)
1753 PH/21 Added message_body_newlines option.
1755 PH/22 Guard against possible overflow in moan_check_errorcopy().
1757 PH/23 POSIX allows open() to be a macro; guard against that.
1759 PH/24 If the recipient of an error message contained an @ in the local part
1760 (suitably quoted, of course), incorrect values were put in $domain and
1761 $local_part during the evaluation of errors_copy.
1767 MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
1768 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
1771 PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
1772 issue a MAIL command.
1774 PH/02 In an ACL statement such as
1776 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
1778 if a client was not listed at all, or was listed with a value other than
1779 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
1780 the condition was not true (as it should be), so access was not denied.
1781 The bug was that the ! inversion was incorrectly passed on to the second
1782 item. This has been fixed.
1784 PH/03 Added additional dnslists conditions == and =& which are different from
1785 = and & when the dns lookup returns more than one IP address.
1787 PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
1788 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
1790 PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
1791 FSYNC, which compiles an option called disable_fsync that allows for
1792 bypassing fsync(). The documentation is heavily laced with warnings.
1794 SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
1796 PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
1797 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
1798 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
1799 including adding "make clean"; (3) Added -fPIC when compiling the test
1800 dynamically loaded module, to get rid of a warning.
1802 MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
1803 message fails, move_frozen_messages = true and ignore_bounce_errors_after
1804 = 0s. The bug is otherwise harmless.
1806 PH/07 There was a bug in the dovecot authenticator such that the value of
1807 $auth1 could be overwritten, and so not correctly preserved, after a
1808 successful authentication. This usually meant that the value preserved by
1809 the server_setid option was incorrect.
1811 PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
1813 PH/09 Installed PCRE release 7.0.
1815 PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
1816 run for batched SMTP input. It is now run at the start of every message
1817 in the batch. While fixing this I discovered that the process information
1818 (output by running exiwhat) was not always getting set for -bs and -bS
1819 input. This is fixed, and it now also says "batched" for BSMTP.
1821 PH/11 Added control=no_pipelining.
1823 PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
1824 patch, slightly modified), and move the expansion of helo_data till after
1825 the connection is made in the smtp transport (so it can use these
1828 PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
1830 PH/14 Added log_selector = +pid.
1832 PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
1834 PH/16 Add ${if forany and ${if forall.
1836 PH/17 Added dsn_from option to vary the From: line in DSNs.
1838 PH/18 Flush SMTP output before performing a callout, unless control =
1839 no_callout_flush is set.
1841 PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
1842 was true (the default) a successful delivery failed to delete the retry
1843 item, thus causing premature timeout of the address. The bug is now
1846 PH/20 Added hosts_avoid_pipelining to the smtp transport.
1848 PH/21 Long custom messages for fakedefer and fakereject are now split up
1849 into multiline reponses in the same way that messages for "deny" and
1850 other ACL rejections are.
1852 PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
1853 with slight modification.
1855 PH/23 Applied sieve patches from the maintainer "tracking the latest notify
1856 draft, changing the syntax and factoring some duplicate code".
1858 PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
1859 for deliveries of the second and subsequent messages over the same SMTP
1862 PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
1863 ${reduce, with only minor "tidies".
1865 SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
1867 PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
1868 expansion side effects.
1870 PH/27 When a message times out after an over-quota error from an Exim-imposed
1871 quota, the bounce message says "mailbox is full". This message was not
1872 being given when it was a system quota that was exceeded. It now should
1875 MH/03 Made $recipients available in local_scan(). local_scan() already has
1876 better access to the recipient list through recipients_list[], but
1877 $recipients can be useful in postmaster-provided expansion strings.
1879 PH/28 The $smtp_command and $smtp_command_argument variables were not correct
1880 in the case of a MAIL command with additional options following the
1881 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
1882 were accidentally chopped off.
1884 PH/29 SMTP synchronization checks are implemented when a command is read -
1885 there is a check that no more input is waiting when there shouldn't be
1886 any. However, for some commands, a delay in an ACL can mean that it is
1887 some time before the response is written. In this time, more input might
1888 arrive, invalidly. So now there are extra checks after an ACL has run for
1889 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
1890 pipelining has not been advertised.
1892 PH/30 MH's patch to allow iscntrl() characters to be list separators.
1894 PH/31 Unlike :fail:, a custom message specified with :defer: was not being
1895 returned in the SMTP response when smtp_return_error_details was false.
1896 This has been fixed.
1898 PH/32 Change the Dovecot authenticator to use read() and write() on the socket
1899 instead of the C I/O that was originally supplied, because problems were
1900 reported on Solaris.
1902 PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
1903 Exim which did not show up earlier: it was assuming that a call to
1904 SSL_CTX_set_info_callback() might give an error value. In fact, there is
1905 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
1906 was a macro that became an assignment, so it seemed to work. This has
1907 changed to a proper function call with a void return, hence the compile
1908 error. Exim's code has been fixed.
1910 PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
1913 PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
1915 PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
1917 PH/37 If a message is not accepted after it has had an id assigned (e.g.
1918 because it turns out to be too big or there is a timeout) there is no
1919 "Completed" line in the log. When some messages of this type were
1920 selected by exigrep, they were listed as "not completed". Others were
1921 picked up by some special patterns. I have improved the selection
1922 criteria to be more general.
1924 PH/38 The host_find_failed option in the manualroute router can now be set
1925 to "ignore", to completely ignore a host whose IP address cannot be
1926 found. If all hosts are ignored, the behaviour is controlled by the new
1927 host_all_ignored option.
1929 PH/39 In a list of hosts for manualroute, if one item (either because of multi-
1930 homing or because of multiple MX records with /mx) generated more than
1931 one IP address, and the following item turned out to be the local host,
1932 all the secondary addresses of the first item were incorrectly removed
1933 from the list, along with the local host and any following hosts (which
1934 is what is supposed to happen).
1936 PH/40 When Exim receives a message, it writes the login name, uid, and gid of
1937 whoever called Exim into the -H file. In the case of the daemon it was
1938 behaving confusingly. When first started, it used values for whoever
1939 started the daemon, but after a SIGHUP it used the Exim user (because it
1940 calls itself on a restart). I have changed the code so that it now always
1943 PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
1944 message are rejected with the same error (e.g. no authentication or bad
1945 sender address), and a DATA command is nevertheless sent (as can happen
1946 with PIPELINING or a stupid MUA), the error message that was given to the
1947 RCPT commands is included in the rejection of the DATA command. This is
1948 intended to be helpful for MUAs that show only the final error to their
1951 PH/42 Another patch from the Sieve maintainer.
1953 SC/02 Eximstats - Differentiate between permanent and temporary rejects.
1954 Eximstats - Fixed some broken HTML links and added missing column headers
1956 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
1957 columns for Rejects, Temp Rejects, Ham, and Spam rows.
1959 SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
1961 PH/43 Yet another patch from the Sieve maintainer.
1963 PH/44 I found a way to check for a TCP/IP connection going away before sending
1964 the response to the final '.' that terminates a message, but only in the
1965 case where the client has not sent further data following the '.'
1966 (unfortunately, this is allowed). However, in many cases there won't be
1967 any further data because there won't be any more messages to send. A call
1968 to select() can be used: if it shows that the input is "ready", there is
1969 either input waiting, or the socket has been closed. An attempt to read
1970 the next input character can distinguish the two cases. Previously, Exim
1971 would have sent an OK response which the client would never have see.
1972 This could lead to message repetition. This fix should cure that, at
1973 least in a lot of common cases.
1975 PH/45 Do not advertise STARTTLS in response to HELP unless it would be
1976 advertised in response to EHLO.
1982 PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
1983 fixed by 4.65/MH/01 (is this a record?) are fixed:
1985 (i) An empty string was always treated as zero by the numeric comparison
1986 operators. This behaviour has been restored.
1988 (ii) It is documented that the numeric comparison operators always treat
1989 their arguments as decimal numbers. This was broken in that numbers
1990 starting with 0 were being interpreted as octal.
1992 While fixing these problems I realized that there was another issue that
1993 hadn't been noticed. Values of message_size_limit (both the global option
1994 and the transport option) were treated as octal if they started with 0.
1995 The documentation was vague. These values are now always treated as
1996 decimal, and I will make that clear in the documentation.
2002 TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2003 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2006 MH/01 Don't check that the operands of numeric comparison operators are
2007 integers when their expansion is in "skipping" mode (fixes bug
2008 introduced by 4.64-PH/07).
2010 PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2011 child addresses, Exim now panics and dies. Previously, because the count
2012 is held in a short int, deliveries were likely to be lost. As such a
2013 large number of recipients for a single message is ridiculous
2014 (performance will be very, very poor), I have chosen to impose a limit
2015 rather than extend the field.
2021 TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2022 leftover -K file (the existence of which was triggered by #402).
2023 While we were at it, introduced process PID as part of the -K
2024 filename. This should rule out race conditions when creating
2027 TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2028 processing considerably. Previous code took too long for large mails,
2029 triggering a timeout which in turn triggers #401.
2031 TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2032 in the DK code in transports.c. sendfile() is not really portable,
2033 hence the _LINUX specificness.
2035 TF/01 In the add_headers option to the mail command in an Exim filter,
2036 there was a bug that Exim would claim a syntax error in any
2037 header after the first one which had an odd number of characters
2040 PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2041 callout verification, Exim cached a "reject" for the entire domain. This
2042 is correct for most verifications, but it is not correct for a recipient
2043 verification with use_sender or use_postmaster set, because in that case
2044 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2045 case of MAIL FROM:<> rejection from other early rejections (e.g.
2046 rejection of HELO). When verifying a recipient using a non-null MAIL
2047 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2048 Whatever the result of the callout, the value of the domain cache is
2049 left unchanged (for any other kind of callout, getting as far as trying
2050 RCPT means that the domain itself is ok).
2052 PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2055 PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2056 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2057 session, the daemon ignores ECONNECT errors and logs others; it now
2058 ignores EPIPE as well.
2060 PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2061 (quoted-printable decoding).
2063 PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
2064 later the small subsequent patch to fix an introduced bug.
2066 PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2068 PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2070 PH/08 An error is now given if message_size_limit is specified negative.
2072 PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
2073 to be given (somewhat) arbitrary names.
2075 JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2078 JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2079 miscellaneous code fixes
2081 PH/10 Added the log_reject_target ACL modifier to specify where to log
2084 PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2085 hostname. This is wrong, because it relates to the incoming message (and
2086 probably the interface on which it is arriving) and not to the outgoing
2087 callout (which could be using a different interface). This has been
2088 changed to use the value of the helo_data option from the smtp transport
2089 instead - this is what is used when a message is actually being sent. If
2090 there is no remote transport (possible with a router that sets up host
2091 addresses), $smtp_active_hostname is used.
2093 PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
2094 tweaks were necessary in order to get it to work (see also 21 below):
2095 (a) The code assumed that strncpy() returns a negative number on buffer
2096 overflow, which isn't the case. Replaced with Exim's string_format()
2098 (b) There were several signed/unsigned issues. I just did the minimum
2099 hacking in of casts. There is scope for a larger refactoring.
2100 (c) The code used strcasecmp() which is not a standard C function.
2101 Replaced with Exim's strcmpic() function.
2102 (d) The code set only $1; it now sets $auth1 as well.
2103 (e) A simple test gave the error "authentication client didn't specify
2104 service in request". It would seem that Dovecot has changed its
2105 interface. Fortunately there's a specification; I followed it and
2106 changed what the client sends and it appears to be working now.
2108 PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2111 PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2112 address A is aliased to B and C, where B exists and C does not. Without
2113 -v the output is "A verified" because verification stops after a
2114 successful redirection if more than one address is generated. However,
2115 with -v the child addresses are also verified. Exim was outputting "A
2116 failed to verify" and then showing the successful verification for C,
2117 with its parentage. It now outputs "B failed to verify", showing B's
2118 parentage before showing the successful verification of C.
2120 PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2121 look up a TXT record in a specific list after matching in a combined
2124 PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2125 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2126 they consult the DNS. I had assumed they would set it the way they
2127 wanted; and indeed my experiments on Linux seem to show that in some
2128 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2129 To be on the safe side, however, I have now made the interface to
2130 host_find_byname() similar to host_find_bydns(), with an argument
2131 containing the DNS resolver options. The host_find_byname() function now
2132 sets these options at its start, just as host_find_bydns() does. The smtp
2133 transport options dns_qualify_single and dns_search_parents are passed to
2134 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2135 of host_find_byname() use the default settings of RES_DEFNAMES
2136 (qualify_single) but not RES_DNSRCH (search_parents).
2138 PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2139 spool_read_header() do less string testing, by means of a preliminary
2140 switch on the second character of optional "-foo" lines. (This is
2141 overdue, caused by the large number of possibilities that now exist.
2142 Originally there were few.) While I was there, I also converted the
2143 str(n)cmp tests so they don't re-test the leading "-" and the first
2144 character, in the hope this might squeeze out yet more improvement.
2146 PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2147 flag allowing group syntax was set by the header_syntax check but not
2148 turned off, possible causing trouble later; (2) The flag was not being
2149 set at all for the header_verify test, causing "group"-style headers to
2150 be rejected. I have now set it in this case, and also caused header_
2151 verify to ignore an empty address taken from a group. While doing this, I
2152 came across some other cases where the code for allowing group syntax
2153 while scanning a header line wasn't quite right (mostly, not resetting
2154 the flag correctly in the right place). These bugs could have caused
2155 trouble for malformed header lines. I hope it is now all correct.
2157 PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2158 with the "reply" argument non-NULL. The code, however (which originally
2159 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2160 but it didn't always do it. This confused somebody who was copying the
2161 code for some other use. I have removed all the tests.
2163 PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2164 feature that was used to support insecure browsers during the U.S. crypto
2165 embargo. It requires special client support, and Exim is probably the
2166 only MTA that supported it -- and would never use it because real RSA is
2167 always available. This code has been removed, because it had the bad
2168 effect of slowing Exim down by computing (never used) parameters for the
2169 RSA_EXPORT functionality.
2171 PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2172 authenticator to fail if there's a tab character in the incoming data
2173 (there should never be unless someone is messing about, as it's supposed
2174 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2175 if the connection is using TLS or if the remote IP is the same as the
2176 local IP, and the "valid-client-cert option" if a client certificate has
2179 PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
2180 authenticators. This can be used for authorization after authentication
2181 succeeds. (In the case of plaintext, it servers for both authentication
2184 PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2185 if any retry times were supplied.
2187 PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2188 connection, where there is no client IP address to check. In this
2189 situation, the verify now always succeeds.
2191 PH/25 Applied John Jetmore's -Mset patch.
2193 PH/26 Added -bem to be like -Mset, but loading a message from a file.
2195 PH/27 In a string expansion for a processed (not raw) header when multiple
2196 headers of the same name were present, leading whitespace was being
2197 removed from all of them, but trailing whitespace was being removed only
2198 from the last one. Now trailing whitespace is removed from each header
2199 before concatenation. Completely empty headers in a concatenation (as
2200 before) are ignored.
2202 PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2203 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2205 PH/29 [Removed. This was a change that I later backed out, and forgot to
2206 correct the ChangeLog entry (that I had efficiently created) before
2207 committing the later change.]
2209 PH/30 Exim was sometimes attempting to deliver messages that had suffered
2210 address errors (4xx response to RCPT) over the same connection as other
2211 messages routed to the same hosts. Such deliveries are always "forced",
2212 so retry times are not inspected. This resulted in far too many retries
2213 for the affected addresses. The effect occurred only when there were more
2214 hosts than the hosts_max_try setting in the smtp transport when it had
2215 the 4xx errors. Those hosts that it had tried were not added to the list
2216 of hosts for which the message was waiting, so if all were tried, there
2217 was no problem. Two fixes have been applied:
2219 (i) If there are any address or message errors in an SMTP delivery, none
2220 of the hosts (tried or untried) are now added to the list of hosts
2221 for which the message is waiting, so the message should not be a
2222 candidate for sending over the same connection that was used for a
2223 successful delivery of some other message. This seems entirely
2224 reasonable: after all the message is NOT "waiting for some host".
2225 This is so "obvious" that I'm not sure why it wasn't done
2226 previously. Hope I haven't missed anything, but it can't do any
2227 harm, as the worst effect is to miss an optimization.
2229 (ii) If, despite (i), such a delivery is accidentally attempted, the
2230 routing retry time is respected, so at least it doesn't keep
2231 hammering the server.
2233 PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2234 in ${readsocket because some servers need this prod.
2236 PH/32 Added some extra debug output when updating a wait-xxx database.
2238 PH/33 The hint "could be header name not terminated by colon", which has been
2239 given for certain expansion errors for a long time, was not being given
2240 for the ${if def:h_colon_omitted{... case.
2242 PH/34 The spec says: "With one important exception, whenever a domain list is
2243 being scanned, $domain contains the subject domain." There was at least
2244 one case where this was not true.
2246 PH/35 The error "getsockname() failed: connection reset by peer" was being
2247 written to the panic log as well as the main log, but it isn't really
2248 panic-worthy as it just means the connection died rather early on. I have
2249 removed the panic log writing for the ECONNRESET error when getsockname()
2252 PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2253 runs only) independently of the message's sender address. This meant
2254 that, if the 4xx error was in fact related to the sender, a different
2255 message to the same recipient with a different sender could confuse
2256 things. In particualar, this can happen when sending to a greylisting
2257 server, but other circumstances could also provoke similar problems.
2258 I have changed the default so that the retry time for these errors is now
2259 based a combination of the sender and recipient addresses. This change
2260 can be overridden by setting address_retry_include_sender=false in the
2263 PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2264 remote server are returned as part of bounce messages. This was not
2265 happening for LMTP over a pipe (the lmtp transport), but now it is the
2266 same for both kinds of LMTP.
2268 PH/38 Despite being documented as not happening, Exim was rewriting addresses
2269 in header lines that were in fact CNAMEs. This is no longer the case.
2271 PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2272 and queue runs started by the daemon processed all messages. This has
2273 been fixed so that -R and -S can now usefully be given with -q<time>.
2275 PH/40 Import PCRE release 6.7 (fixes some bugs).
2277 PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2279 PH/42 Give an error if -q is specified more than once.
2281 PH/43 Renamed the variables $interface_address and $interface_port as
2282 $received_ip_address and $received_port, to make it clear that these
2283 values apply to message reception, and not to the outgoing interface when
2284 a message is delivered. (The old names remain recognized, of course.)
2286 PH/44 There was no timeout on the connect() call when using a Unix domain
2287 socket in the ${readsocket expansion. There now is.
2289 PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2290 be meaningful with "accept".
2292 SC/01 Eximstats V1.43
2293 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2295 SC/02 Eximstats V1.44
2296 Use a glob alias rather than an array ref in the generated
2297 parser. This improves both readability and performance.
2299 SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2300 Collect SpamAssassin and rejection statistics.
2301 Don't display local sender or destination tables unless
2302 there is data to show.
2303 Added average volumes into the top table text output.
2305 SC/04 Eximstats V1.46
2306 Collect data on the number of addresses (recipients)
2307 as well as the number of messages.
2309 SC/05 Eximstats V1.47
2310 Added 'Message too big' to the list of mail rejection
2311 reasons (thanks to Marco Gaiarin).
2313 SC/06 Eximstats V1.48
2314 Mainlog lines which have GMT offsets and are too short to
2315 have a flag are now skipped.
2317 SC/07 Eximstats V1.49 (Alain Williams)
2318 Added the -emptyok flag.
2320 SC/08 Eximstats V1.50
2321 Fixes for obtaining the IP address from reject messages.
2323 JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2324 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
2325 whitesspace changes from 4.64-PH/27
2327 JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2330 JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2331 are found, allow negative numbers in numeric criteria)
2333 JJ/06 exipick.20061117.2, added new $message_body_missing variable
2335 JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
2336 to match changes made in 4.64-PH/43
2338 PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
2340 PH/47 Put in an explicit test for a DNS lookup of an address record where the
2341 "domain" is actually an IP address, and force a failure. This locks out
2342 those revolvers/nameservers that support "A-for-A" lookups, in
2343 contravention of the specifications.
2345 PH/48 When a host name was looked up from an IP address, and the subsequent
2346 forward lookup of the name timed out, the host name was left in
2347 $sender_host_name, contrary to the specification.
2349 PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
2350 restricted to single-key lookups, Exim was not diagnosing an error if
2351 * or *@ was used with a query-style lookup.
2353 PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
2355 MH/01 local_scan ABI version incremented to 1.1. It should have been updated
2356 long ago, but noone interested enough thought of it. Let's just say that
2357 the "1.1" means that there are some new functions that weren't there at
2358 some point in the past.
2360 PH/51 Error processing for expansion failure of helo_data from an smtp
2361 transport during callout processing was broken.
2363 PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
2364 tested/used via the -bh/-bhc/-bs options.
2366 PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
2367 bug, fixed in subsequent PCRE releases).
2369 PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
2370 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
2372 PH/55 Check for a ridiculously long file name in exim_dbmbuild.
2378 SC/01 Use a glob alias rather than an array ref in eximstats generated
2379 parser. This improves both readability and performance.
2381 SC/02 Collect SpamAssassin and rejection statistics in eximstats.
2382 Don't display local sender or destination tables in eximstats unless
2383 there is data to show.
2384 Added average volumes into the eximstats top table text output.
2386 SC/03 Collect data on the number of addresses (recipients) as well
2387 as the number of messages in eximstats.
2389 TF/01 Correct an error in the documentation for the redirect router. Exim
2390 does (usually) call initgroups() when daemonizing.
2392 TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
2393 with consistent privilege compared to when running as a daemon.
2395 TF/03 Note in the spec that $authenticated_id is not set for local
2396 submissions from trusted users.
2398 TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
2399 Thanks to Dean Brooks <dean@iglou.com> for the patch.
2401 TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
2402 by adding some example configuration directives to the default
2403 configuration file. A little bit of work is required to uncomment the
2404 directives and define how usernames and passwords are checked, but
2405 there is now a framework to start from.
2407 PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
2408 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
2409 without this. I don't know how relevant this is to other LDAP libraries.
2411 PH/02 Add the verb name to the "unknown ACL verb" error.
2413 PH/03 Magnus Holmgren's patch for filter_prepend_home.
2415 PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
2417 PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
2418 directory not expanded when it should be if an expanded home directory
2419 was set for the address (which is overridden by the transport).
2421 PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
2424 PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
2425 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
2426 because it is too late at that time, and has no effect.
2428 PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
2429 security issue with \' (bugzilla #107). I could not use the
2430 PQescapeStringConn() function, because it needs a PGconn value as one of
2433 PH/08 When testing addresses using -bt, indicate those final addresses that
2434 are duplicates that would not cause an additional delivery. At least one
2435 person was confused, thinking that -bt output corresponded to deliveries.
2436 (Suppressing duplicates isn't a good idea as you lose the information
2437 about possibly different redirections that led to the duplicates.)
2439 PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
2440 systems where poll() doesn't work, in particular OS X.
2442 PH/10 Added more information to debugging output for retry time not reached.
2444 PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
2445 operations in malware.c.
2447 PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
2450 PH/13 If write_rejectlog was set false when logging was sent to syslog with
2451 syslog_duplication set false, log lines that would normally be written
2452 both the the main log and to the reject log were not written to syslog at
2455 PH/14 In the default configuration, change the use of "message" in ACL warn
2456 statements to "add_header".
2458 PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
2459 not followed by a command (e.g. "seen endif").
2461 PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
2462 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
2465 PH/17 Added extra conditions to the default value of delay_warning_condition
2469 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
2470 { match{$h_precedence:}{(?i)bulk|list|junk} } \
2471 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
2474 The Auto-Submitted: and various List- headers are standardised, whereas I
2475 don't think Precedence: ever was.
2477 PH/18 Refactored debugging code in route_finduser() to show more information,
2478 in particular, the error code if getpwnam() issues one.
2480 PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
2481 This is apparently needed in addition to the PH/07 change above to avoid
2482 any possible encoding problems.
2484 PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
2485 but not after initializing Perl.
2487 PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
2488 output them only if debugging. By default they are written stderr,
2489 apparently, which is not desirable.
2491 PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
2494 JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
2497 JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
2499 PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
2500 authenticated or an ident call has been made. Suppress the default
2501 values for $authenticated_id and $authenticated_sender (but permit -oMai
2502 and -oMas) when testing with -bh.
2504 PH/24 Re-jigged the order of the tests in the default configuration so that the
2505 tests for valid domains and recipients precede the DNS black list and CSA
2506 tests, on the grounds that those ones are more expensive.
2508 PH/25 Exim was not testing for a space following SMTP commands such as EHLO
2509 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
2510 This bug exists in every version of Exim that I still have, right back to
2513 PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
2514 However, an attempt to turn on case-sensitivity in a regex key by
2515 including (?-i) didn't work because the subject string was already
2516 lowercased, and the effects were non-intuitive. It turns out that a
2517 one-line patch can be used to allow (?-i) to work as expected.
2523 TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
2524 other effects) broke the use of negated acl sub-conditions.
2526 PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
2529 PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
2530 "Deny" causes Exim to reject the incoming connection with a 554 error.
2531 Unfortunately, if there is a major crisis, such as a disk failure,
2532 tcp-wrappers gives "deny", whereas what one would like would be some
2533 kind of temporary error. A kludge has been added to help with this.
2534 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
2535 554 error is used if errno is still zero or contains ENOENT (which occurs
2536 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
2539 PH/03 Add -lutil to the default FreeBSD LIBS setting.
2541 PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
2542 errors. Otherwise a message that provokes a temporary error (when other
2543 messages do not) can cause a whole host to time out.
2545 PH/05 Batch deliveries by appendfile and pipe transports did not work when the
2546 addresses were routed directly to files or pipes from a redirect router.
2547 File deliveries just didn't batch; pipe deliveries might have suffered
2550 PH/06 A failure to get a lock for a hints database would erroneously always say
2551 "Failed to get write lock", even when it was really a read lock.
2553 PH/07 The appendfile transport was creating MBX lock files with a fixed mode
2554 of 0600. This has been changed to use the value of the lockfile_mode
2555 option (which defaults to 0600).
2557 PH/08 Applied small patch from the Sieve maintainer.
2559 PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
2560 folder from quota calculations, a direct delivery into this folder messed
2561 up the contents of the maildirsize file. This was because the regex was
2562 used only to exclude .Trash (or whatever) when the size of the mailbox
2563 was calculated. There was no check that a delivery was happening into an
2564 excluded directory. This bug has been fixed by ignoring all quota
2565 processing for deliveries into excluded directories.
2567 PH/10 Added the maildirfolder_create_regex option to appendfile.
2573 PH/01 The code for finding all the local interface addresses on a FreeBSD
2574 system running IPv6 was broken. This may well have applied to all BSD
2575 systems, as well as to others that have similar system calls. The broken
2576 code found IPv4 interfaces correctly, but gave incorrect values for the
2577 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
2578 that it would not match correctly against @[] and not recognize the IPv6
2581 PH/02 The ipliteral router was not recognizing addresses of the form user@
2582 [ipv6:....] because it didn't know about the "ipv6:" prefix.
2584 PH/03 Added disable_ipv6.
2586 PH/04 Changed $reply_address to use the raw form of the headers instead of the
2587 decoded form, because it is most often used to construct To: headers
2588 lines in autoreplies, and the decoded form may well be syntactically
2589 invalid. However, $reply_address has leading white space removed, and all
2590 newlines turned into spaces so that the autoreply transport does not
2593 PH/05 If group was specified without a user on a router, and no group or user
2594 was specified on a transport, the group from the router was ignored.
2596 PH/06 Increased the number of ACL variables to 20 of each type, and arranged
2597 for visible compile-time settings that can be used to change these
2598 numbers, for those that want even more. Backwards compatibility with old
2599 spool files has been maintained. However, going back to a previous Exim
2600 release will lost any variables that are in spool files.
2602 PH/07 Two small changes when running in the test harness: increase delay when
2603 passing a TCP/IP connection to a new process, in case the original
2604 process has to generate a bounce, and remove special handling of
2605 127.0.0.2 (sic), which is no longer necessary.
2607 PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
2608 be the same on different OS.
2610 PH/09 Moved a debug statement in filter processing to avoid a race problem when
2613 JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
2614 whether --show-vars was specified or not
2616 JJ/02 exipick: Added support for new ACL variable spool format introduced
2619 PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
2620 syntactically invalid From: or Reply-to: line, and a filter used this to
2621 generate an autoreply, and therefore failed to obtain an address for the
2622 autoreply, Exim could try to deliver to a non-existent relative file
2623 name, causing unrelated and misleading errors. What now happens is that
2624 it logs this as a hard delivery error, but does not attempt to create a
2627 PH/11 The exinext utility has a -C option for testing purposes, but although
2628 the given file was scanned by exinext itself; it wasn't being passed on
2629 when Exim was called.
2631 PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
2632 an end-of-file indication when reading a command response.
2634 PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
2635 compiled. In many other places in Exim, IPv6 addresses are always
2636 recognized, so I have changed this. It also means that IPv4 domain
2637 literals of the form [IPV4:n.n.n.n] are now always recognized.
2639 PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
2640 used if the router is not running as root, for example, when verifying at
2641 ACL time, or when using -bh. The debugging output from this situation was
2642 non-existent - all you got was a failure to exec. I have made two
2645 (a) Failures to set uid/gid, the current directory, or a process leader
2646 in a subprocess such as that created by queryprogram now generate
2647 suitable debugging ouput when -d is set.
2649 (b) The queryprogram router detects when it is not running as root,
2650 outputs suitable debugging information if -d is set, and then runs
2651 the subprocess without attempting to change uid/gid.
2653 PH/15 Minor change to Makefile for building test_host (undocumented testing
2656 PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
2657 additional section of a DNS packet that returns MX or SRV records.
2658 Instead, it always explicitly searches for A/AAAA records. This avoids
2659 major problems that occur when a DNS server includes only records of one
2660 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
2661 fixed another bug: if SRV records were looked up and the corresponding
2662 address records were *not* found in the additional section, the port
2663 values from the SRV records were lost.
2665 PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
2666 using the correct key (the original address) when searching the retry
2667 rules in order to find which one to use for generating the retry hint.
2669 PH/18 If quota_warn_message contains a From: header, Exim now refrains from
2670 adding the default one. Similarly, if it contains a Reply-To: header, the
2671 errors_reply_to option, if set, is not used.
2673 PH/19 When calculating a retry time, Exim used to measure the "time since
2674 failure" by looking at the "first failed" field in the retry record. Now
2675 it does not use this if it is later than than the arrival time of the
2676 message. Instead it uses the arrival time. This makes for better
2677 behaviour in cases where some deliveries succeed, thus re-setting the
2678 "first failed" field. An example is a quota failure for a huge message
2679 when small messages continue to be delivered. Without this change, the
2680 "time since failure" will always be short, possible causing more frequent
2681 delivery attempts for the huge message than are intended.
2682 [Note: This change was subsequently modified - see PH/04 for 4.62.]
2684 PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
2685 $1, $2, $3) because the numerical variables can be reset during some
2686 expansion items (e.g. "match"), thereby losing the authentication data.
2688 PH/21 Make -bV show the size of off_t variables so that the test suite can
2689 decide whether to run tests for quotas > 2G.
2691 PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
2692 mailbox_size, and mailbox_filecount in the appendfile transport. If a
2693 filecount value is greater than 2G or if a quota value is greater than 2G
2694 on a system where the size of off_t is not greater than 4, a panic error
2697 PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
2698 never match. The debug and -bh output now contains an explicit error
2699 message indicating a malformed IPv4 address or mask.
2701 PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
2702 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
2703 PH/23 above applies.
2705 PH/25 Do not write to syslog when running in the test harness. The only
2706 occasion when this arises is a failure to open the main or panic logs
2707 (for which there is an explicit test).
2709 PH/26 Added the /no_tell option to "control=freeze".
2711 PH/27 If a host name lookup failed very early in a connection, for example, if
2712 the IP address matched host_lookup and the reverse lookup yielded a name
2713 that did not have a forward lookup, an error message of the form "no IP
2714 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
2715 could be logged. Now it outputs the IP address instead of "NULL".
2717 PH/28 An enabling patch from MH: add new function child_open_exim2() which
2718 allows the sender and the authenticated sender to be set when
2719 submitting a message from within Exim. Since child_open_exim() is
2720 documented for local_scan(), the new function should be too.
2722 PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
2723 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
2724 results in an empty string is now treated as unset.
2726 PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
2728 PH/31 Added sender_verify_fail logging option.
2730 PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
2731 needed by RFC 822 but not by RFC 2822 was commented out. I have now
2732 tidied the source and removed it altogether.
2734 PH/33 When a queue run was abandoned because the load average was too high, a
2735 log line was always written; now it is written only if the queue_run log
2736 selector is set. In addition, the log line for abandonment now contains
2737 information about the queue run such as the pid. This is always present
2738 in "start" and "stop" lines but was omitted from the "abandon" line.
2740 PH/34 Omit spaces between a header name and the colon in the error message that
2741 is given when verify = headers_syntax fails (if there are lots of them,
2742 the message gets confusing).
2744 PH/35 Change the default for dns_check_names_pattern to allow slashes within
2745 names, as there are now some PTR records that contain slashes. This check
2746 is only to protect against broken name servers that fall over on strange
2747 characters, so the fact that it applies to all lookups doesn't matter.
2749 PH/36 Now that the new test suite is complete, we can remove some of the
2750 special code in Exim that was needed for the old test suite. For example,
2751 sorting DNS records because real resolvers return them in an arbitrary
2752 order. The new test suite's fake resolver always returns records in the
2755 PH/37 When running in the test harness, use -odi for submitted messages (e.g.
2756 bounces) except when queue_only is set, to avoid logging races between
2757 the different processes.
2759 PH/38 Panic-die if .include specifies a non-absolute path.
2761 PH/39 A tweak to the "H" retry rule from its user.
2763 JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
2764 a label. They prevented compilation on older perls.
2766 JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
2767 a warning to be raised on newish perls.
2769 JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
2770 on queue. Changes to match documented behaviour of showing count of
2771 messages matching specified criteria.
2773 PH/40 Changed the default ident timeout from 30s to 5s.
2775 PH/41 Added support for the use of login_cap features, on those BSD systems
2776 that have them, for controlling the resources used by pipe deliveries.
2778 PH/42 The content-scanning code uses fopen() to create files in which to put
2779 message data. Previously it was not paying any attention to the mode of
2780 the files. Exim runs with umask(0) because the rest of the code creates
2781 files with open(), and sets the required mode explicitly. Thus, these
2782 files were ending up world-writeable. This was not a big issue, because,
2783 being within the spool directory, they were not world-accessible. I have
2784 created a function called modefopen, which takes an additional mode
2785 argument. It sets umask(777), creates the file, chmods it to the required
2786 mode, then resets the umask. All the relevant calls to fopen() in the
2787 content scanning code have been changed to use this function.
2789 PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
2790 to 24 hours. This avoids potential overflow problems when processing G
2791 and H retry rules. I suspect nobody ever tinkers with this value.
2793 PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
2795 PH/45 When the plaintext authenticator is running as a client, the server's
2796 challenges are checked to ensure they are valid base64 strings. By
2797 default, the authentication attempt is cancelled if an invalid string is
2798 received. Setting client_ignore_invalid_base64 true ignores these errors.
2799 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
2800 they are received. Thus, the responses can be made to depend on the
2801 challenges. If an invalid string is ignored, an empty string is placed in
2804 PH/46 Messages that are created by the autoreply transport now contains a
2805 References: header, in accordance with RFCs 2822 and 3834.
2807 PH/47 Added authenticated_sender_force to the smtp transport.
2809 PH/48 The ${prvs expansion was broken on systems where time_t was long long.
2811 PH/49 Installed latest patch from the Sieve maintainer.
2813 PH/50 When an Exim quota was set without a file count quota, and mailbox_size
2814 was also set, the appendfile transport was unnecessarily scanning a
2815 directory of message files (e.g. for maildir delivery) to find the count
2816 of files (along with the size), even though it did not need this
2817 information. It now does the scan only if it needs to find either the
2818 size of the count of files.
2820 PH/51 Added ${time_eval: to convert Exim time strings into seconds.
2822 PH/52 Two bugs concerned with error handling when the smtp transport is
2825 (i) Exim was not creating retry information for temporary errors given
2826 for individual recipients after the DATA command when the smtp transport
2827 was used in LMTP mode. This meant that they could be retried too
2828 frequently, and not timed out correctly.
2830 (ii) Exim was setting the flag that allows error details to be returned
2831 for LMTP errors on RCPT commands, but not for LMTP errors for individual
2832 recipients that were returned after the DATA command.
2834 PH/53 This is related to PH/52, but is more general: for any failing address,
2835 when detailed error information was permitted to be returned to the
2836 sender, but the error was temporary, then after the final timeout, only
2837 "retry timeout exceeded" was returned. Now it returns the full error as
2838 well as "retry timeout exceeded".
2840 PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
2841 do this, and (what is worse) MTAs that accept it.
2843 PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
2844 will now be deprecated.
2846 PH/56 New os.c-cygwin from the Cygwin maintainer.
2848 JJ/06 exipick: added --unsorted option to allow unsorted output in all output
2849 formats (previously only available in exim formats via -bpr, -bpru,
2850 and -bpra. Now also available in native and exiqgrep formats)
2852 JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
2853 with very large, slow to parse queues
2855 JJ/08 exipick: added ! as generic prefix to negate any criteria format
2857 JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
2859 PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
2860 responses to authentication challenges, though it was showing the
2861 challenges; (ii) I've removed the CR characters from the debug output for
2864 PH/58 Allow for the insertion of a newline as well as a space when a string
2865 is turned into more than one encoded-word during RFC 2047 encoding. The
2866 Sieve code now uses this.
2868 PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
2869 data_4xx, lost_connection, tls_required.
2871 PH/60 When a VRFY deferred or FAILED, the log message rather than the user
2872 message was being sent as an SMTP response.
2874 PH/61 Add -l and -k options to exicyclog.
2876 PH/62 When verifying, if an address was redirected to one new address, so that
2877 verification continued, and the new address failed or deferred after
2878 having set something in $address_data, the value of $address_data was not
2879 passed back to the ACL. This was different to the case when no
2880 redirection occurred. The value is now passed back in both cases.
2882 PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
2883 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
2884 use login_cap.h, so on its own it isn't the distinguishing feature. The
2885 new name refers directly to the setclassresources() function.
2887 PH/65 Added configuration files for NetBSD3.
2889 PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
2891 PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
2892 is preferred over IPv4.
2894 PH/68 The bounce_return_message and bounce_return_body options were not being
2895 honoured for bounces generated during the reception of non-SMTP messages.
2896 In particular, this applied to messages rejected by the ACL. This bug has
2897 been fixed. However, if bounce_return_message is true and bounce_return_
2898 body is false, the headers that are returned for a non-SMTP message
2899 include only those that have been read before the error was detected.
2900 (In the case of an ACL rejection, they have all been read.)
2902 PH/69 The HTML version of the specification is now built in a directory called
2903 spec_html instead of spec.html, because the latter looks like a path with
2904 a MIME-type, and this confuses some software.
2906 PH/70 Catch two compiler warnings in sieve.c.
2908 PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
2909 function verify_get_ident() calls ip_connect() to connect a socket, but
2910 if the "connect()" function timed out, ip_connect() used to close the
2911 socket. However, verify_get_ident() also closes the socket later, and in
2912 between Exim writes to the log, which may get opened at this point. When
2913 the socket was closed in ip_connect(), the log could get the same file
2914 descriptor number as the socket. This naturally causes chaos. The fix is
2915 not to close the socket in ip_connect(); the socket should be closed by
2916 the function that creates it. There was only one place in the code where
2917 this was missing, in the iplookup router, which I don't think anybody now
2918 uses, but I've fixed it anyway.
2920 PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
2921 well as to direct DNS lookups. Otherwise the handling of names in host
2922 lists is inconsistent and therefore confusing.
2928 PH/01 Two changes to the default runtime configuration:
2930 (1) Move the checks for relay_from_hosts and authenticated clients from
2931 after to before the (commented out) DNS black list checks.
2933 (2) Add control=submission to the relay_from_hosts and authenticated
2934 clients checks, on the grounds that messages accepted by these
2935 statements are most likely to be submissions.
2937 PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
2939 (1) Generate an error if the third argument for the ${prvs expansion is
2942 (2) Treat a missing third argument of ${prvscheck as if it were an empty
2945 (3) Reset the variables that are obtained from the first argument of
2946 ${prvscheck and used in the second argument before leaving the code,
2947 because their memory is reclaimed, so using them afterwards may do
2950 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
2951 one (it's much easier than Tom thought :-).
2953 (5) Because of (4), we can now allow for the use of $prvscheck_result
2954 inside the third argument.
2956 PH/03 For some reason, the default setting of PATH when running a command from
2957 a pipe transport was just "/usr/bin". I have changed it to
2960 PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
2961 anything to be listed in the output from -bV.
2963 PH/05 When a filter generated an autoreply, the entire To: header line was
2964 quoted in the delivery log line, like this:
2966 => >A.N.Other <ano@some.domain> <original@ddress> ...
2968 This has been changed so that it extracts the operative address. There
2969 may be more than one such address. If so, they are comma-separated, like
2972 => >ano@some.domain,ona@other.domain <original@ddress> ...
2974 PH/06 When a client host used a correct literal IP address in a HELO or EHLO
2975 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
2976 not being looked up in the rDNS to get a host name, Exim was showing the
2977 IP address twice in Received: lines, even though the IP addresses were
2978 identical. For example:
2980 Received: from [1.2.3.4] (helo=[1.2.3.4])
2982 However, if the real host name was known, it was omitting the HELO data
2983 if it matched the actual IP address. This has been tidied up so that it
2984 doesn't show the same IP address twice.
2986 PH/07 When both +timestamp and +memory debugging was on, the value given by
2987 $tod_xxx expansions could be wrong, because the tod_stamp() function was
2988 called by the debug printing, thereby overwriting the timestamp buffer.
2989 Debugging no longer uses the tod_stamp() function when +timestamp is set.
2991 PH/08 When the original message was included in an autoreply transport, it
2992 always said "this is a copy of the message, including all the headers",
2993 even if body_only or headers_only was set. It now gives an appropriate
2996 PH/09 Applied a patch from the Sieve maintainer which:
2998 o fixes some comments
2999 o adds the (disabled) notify extension core
3000 o adds some debug output for the result of if/elsif tests
3001 o points to the current vacation draft in the documentation
3002 and documents the missing references header update
3006 o fixes a bug in processing the envelope test (when testing
3007 multiple envelope elements, the last element determinted the
3010 PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
3011 Electronic Mail") by including:
3013 Auto-submitted: auto-generated
3015 in the messages that it generates (bounce messages and others, such as
3016 warnings). In the case of bounce messages for non-SMTP mesages, there was
3017 also a typo: it was using "Auto_submitted" (underscore instead of
3018 hyphen). Since every message generated by Exim is necessarily in response
3019 to another message, thes have all been changed to:
3021 Auto-Submitted: auto-replied
3023 in accordance with these statements in the RFC:
3025 The auto-replied keyword:
3027 - SHOULD be used on messages sent in direct response to another
3028 message by an automatic process,
3030 - MUST NOT be used on manually-generated messages,
3032 - MAY be used on Delivery Status Notifications (DSNs) and Message
3033 Disposition Notifications (MDNs),
3035 - MUST NOT be used on messages generated by automatic or periodic
3036 processes, except for messages which are automatic responses to
3039 PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
3040 to the default Received: header definition.
3042 PH/12 Added log selector acl_warn_skipped (default on).
3044 PH/13 After a successful wildlsearch lookup, discard the values of numeric
3045 variables because (a) they are in the wrong storage pool and (b) even if
3046 they were copied, it wouldn't work properly because of the caching.
3048 PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
3049 checking when decoding. Apparently there are clients that generate
3050 overlong encoded strings. Why am I not surprised?
3052 PH/15 If the first argument of "${if match_address" was not empty, but did not
3053 contain an "@" character, Exim crashed. Now it writes a panic log message
3054 and treats the condition as false.
3056 PH/16 In autoreply, treat an empty string for "once" the same as unset.
3058 PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
3059 extension "envelope-auth". The code is finished and in agreement with
3060 other implementations, but there is no documentation so far and in fact,
3061 nobody wrote the draft yet. This extension is currently #undef'ed, thus
3062 not changing the active code.
3064 Print executed "if" and "elsif" statements when debugging is used. This
3065 helps a great deal to understand what a filter does.
3067 Document more things not specified clearly in RFC3028. I had all this
3068 sorted out, when out of a sudden new issues came to my mind. Oops."
3070 PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
3073 PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
3074 canonical form (as documented). However, after a host name lookup from
3075 the IP address, check_host() was doing a simple string comparison with
3076 addresses acquired from the DNS when checking that the found name did
3077 have the original IP as one of its addresses. Since any found IPv6
3078 addresses are likely to be in abbreviated form, the comparison could
3079 fail. Luckily, there already exists a function for doing the comparison
3080 by converting both addresses to binary, so now that is used instead of
3081 the text comparison.
3083 PH/20 There was another similar case to PH/19, when a complete host name was
3084 given in a host list; looking up its IP address could give an abbreviated
3085 form, whereas the current host's name might or might not be abbreviated.
3086 The same fix has been applied.
3092 PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
3093 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
3096 PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
3097 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
3099 PH/03 Typo: missing ".o" in src/pcre/Makefile.
3101 PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
3102 header line, restrict the check to what is listed in RFCs 2369 and 2929.
3103 Also, for "Auto-Submitted", treat anything other than "no" as
3104 non-personal, in accordance with RFC 3834. (Previously it treated
3105 anything starting "auto-" as non-personal.)
3107 TF/01 The control=submission/name=... option had a problem with syntax
3108 errors if the name included a slash character. The /name= option
3109 now slurps the rest of the string, so it can include any characters
3110 but it must come last in the list of options (after /sender_retain
3113 PH/05 Some modifications to the interface to the fake nameserver for the new
3121 TK/01 Added the "success_on_redirect" address verification option. See
3122 NewStuff for rationale and an example.
3124 PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
3126 PH/02 Patch to exigrep to allow it to work on syslog lines.
3128 PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
3129 fread() to skip over the body file's header line, because in Cygwin the
3130 header line is locked and is inaccessible.
3132 PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
3133 co-exist for some time) to make it clear that it is the Exim ID that is
3134 referenced, not the Message-ID: header line.
3136 PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
3137 string_format() function, because snprintf() does not exist on all
3140 PH/06 The use of forbid_filter_existstest now also locks out the use of the
3141 ${stat: expansion item.
3143 PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
3144 protocol synchronization error", to keep the pedants happy.
3146 PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
3147 well as for IRIX systems, when gcc is being used. See the host.c source
3150 PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
3152 PH/10 Named domain lists were not working if used in a queue_smtp_domains
3155 PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
3156 transport and to the smtp transport in LMTP mode.
3158 TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
3160 PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
3161 run a filter in a subprocess. This could lead to confusion in subsequent
3162 lookups in the parent process. There should also be a search_tidyup() at
3163 the end of the subprocess.
3165 PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
3166 only if the host matched helo_try_verify_hosts, which caused the
3167 verification to occur when the EHLO/HELO command was issued. The ACL just
3168 tested the remembered result. Now, if a previous verification attempt has
3169 not happened, "verify = helo" does it there and then.
3171 JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
3173 TK/03 Fix log output including CR from clamd.
3175 PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
3176 exist provoked a memory error which could cause a segfault.
3178 PH/15 Installed PCRE 6.2
3180 PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
3182 PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
3183 of the problem. Specifically, suggested +O2 rather than +O1 for the
3186 PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
3188 PH/20 If a delivery was routed to a non-standard port by means of an SRV
3189 record, the port was not correctly logged when the outgoing_port log
3190 selector was set (it logged the transort's default port).
3192 PH/21 Added support for host-specific ports to manualroute, queryprogram,
3193 fallback_hosts, and "hosts" in the smtp transport.
3195 PH/22 If the log selector "outgoing_port" is set, the port is now also given on
3196 host errors such as "Connection refused".
3198 PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
3199 authentication with radiusclient 0.4.9:
3201 - Error returned from rc_read_config was caught wrongly
3202 - Username/password not passed on to radius server due to wrong length.
3204 The presumption is that some radiusclient API changes for 4.51/PH/17
3205 were not taken care of correctly. The code is still untested by me (my
3206 Linux distribution still has 0.3.2 of radiusclient), but it was
3207 contributed by a Radius user.
3209 PH/24 When doing a callout, the value of $domain wasn't set correctly when
3210 expanding the "port" option of the smtp transport.
3212 TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
3213 while reading a MIME header. Thanks to Tom Hughes for a patch.
3215 PH/24 Include config.h inside local_scan.h so that configuration settings are
3218 PH/25 Make $smtp_command_argument available after all SMTP commands. This means
3219 that in an ACL for RCPT (for example), you can examine exactly what was
3222 PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
3223 commands, but it was not correctly comparing the address with the actual
3224 client host address. Thus, it would show the EHLO address in Received:
3225 header lines when this was not necessary.
3227 PH/27 Added the % operator to ${eval:}.
3229 PH/28 Exim tries to create and chdir to its spool directory when it starts;
3230 it should be ignoring failures (because with -C, for example, it has lost
3231 privilege). It wasn't ignoring creation failures other than "already
3234 PH/29 Added "crypteq" to the list of supported features that Exim outputs when
3237 PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
3238 because an input line was too long, either on its own, or by virtue of
3239 too many continuations, the temporary file was not being removed, and the
3240 return code was incorrect.
3242 PH/31 Missing "BOOL" in function definition in filtertest.c.
3244 PH/32 Applied Sieve patches from the maintainer.
3246 TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
3248 PH/33 Added "verify = not_blind".
3250 PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
3251 Local/Makefile (with some defaults set). These are used in built scripts
3252 such as exicyclog, but they have never been used in the exim_install
3253 script (though there are many overriding facilities there). I have
3254 arranged that the exim_install script now takes note of these two
3257 PH/35 Installed configuration files for Dragonfly.
3259 PH/36 When a locally submitted message by a trusted user did not contain a
3260 From: header, and the sender address was obtained from -f or from an SMTP
3261 MAIL command, and the trusted user did not use -F to supply a sender
3262 name, $originator_name was incorrectly used when constructing a From:
3263 header. Furthermore, $originator_name was used for submission mode
3264 messages from external hosts without From: headers in a similar way,
3265 which is clearly wrong.
3267 PH/37 Added control=suppress_local_fixups.
3269 PH/38 When log_selector = +received_sender was set, and the addition of the
3270 sender made the log line's construction buffer exactly full, or one byte
3271 less than full, an overflow happened when the terminating "\n" was
3274 PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
3275 when the result of a list match is failure because a DNS lookup failed.
3277 PH/40 RM_COMMAND is now used in the building process.
3279 PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
3280 the "build-* directories that it finds.
3282 PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
3283 address in a domain literal was a prefix of an interface address.
3285 PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
3286 when verifying a sender address, unless rewrite_headers is false.
3288 PH/44 Wrote a long comment about why errors_to addresses are verified as
3289 recipients, not senders.
3291 TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
3292 the ratelimit ACL was added.
3294 PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
3296 PH/46 Added extra information about PostgreSQL errors to the error string.
3298 PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
3299 avoiding the need to install special zones in a real server. This is
3300 backwards compatible; if it can't find the fake resolver, it drops back.
3301 Thus, both old and new test suites can be run.
3303 TF/02 Added util/ratelimit.pl
3305 TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
3306 clock is set back in time.
3308 TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
3309 Candler <B.Candler@pobox.com>.
3311 TF/05 The fix for PH/43 was not completely correct; widen_domains is always
3312 OK for addresses that are the result of redirections.
3314 PH/48 A number of further additions for the benefit of the new test suite,
3315 including a fake gethostbyname() that interfaces to the fake DNS resolver
3318 TF/06 The fix for widen_domains has also been applied to qualify_single and
3319 search_parents which are the other dnslookup options that can cause
3322 PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
3325 PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
3327 TF/07 Exim produced the error message "an SRV record indicated no SMTP
3328 service" if it encountered an MX record with an empty target hostname.
3329 The message is now "an MX or SRV record indicated no SMTP service".
3331 TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
3332 if the DNS of the sending site is misconfigured. This is quite a
3333 common situation. This change restores the behaviour of treating a
3334 helo verification defer as a failure.
3336 PH/51 If self=fail was set on a router, the bounce message did not include the
3337 actual error message.
3343 TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
3345 PH/01 When a transport filter timed out in a pipe delivery, and the pipe
3346 command itself ended in error, the underlying message about the transport
3347 filter timeout was being overwritten with the pipe command error. Now the
3348 underlying error message should be appended to the second error message.
3350 TK/01 Fix poll() being unavailable on Mac OSX 10.2.
3352 PH/02 Reduce the amount of output that "make" produces by default. Full output
3353 can still be requested.
3355 PH/03 The warning log line about a condition test deferring for a "warn" verb
3356 was being output only once per connection, rather than after each
3357 occurrence (because it was using the same function as for successful
3358 "warn" verbs). This seems wrong, so I have changed it.
3360 TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
3361 it should not have, which might have caused a crash in the right
3362 circumstances, but probably never did.
3364 PH/04 Installed a modified version of Tony Finch's patch to make submission
3365 mode fix the return path as well as the Sender: header line, and to
3366 add a /name= option so that you can make the user's friendly name appear
3369 TF/03 Added the control = fakedefer ACL modifier.
3371 TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
3372 Mark Lowes for thorough testing.
3374 TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
3376 TK/03 Merged latest SRS patch from Miles Wilton.
3378 PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
3379 with the definition in sysexits.h (which is #included earlier).
3380 Fortunately, Exim does not actually use EX_OK. The code used to try to
3381 preserve the sysexits.h value, by assumimg that macro definitions were
3382 scanned for macro replacements. I have been disabused of this notion,
3383 so now the code just undefines EX_OK before #including unistd.h.
3385 PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
3386 in the smtp transport. When a block could not be written in a single
3387 write() function, the timeout was being re-applied to each part-write.
3388 This seems wrong - if the receiver was accepting one byte at a time it
3389 would take for ever. The timeout is now adjusted when this happens. It
3390 doesn't have to be particularly precise.
3392 TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
3393 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
3395 PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
3396 without a domain if the check to <postmaster@domain> fails.
3398 SC/01 Eximstats: added -xls and the ability to specify output files
3399 (patch written by Frank Heydlauf).
3401 SC/02 Eximstats: use FileHandles for outputing results.
3403 SC/03 Eximstats: allow any combination of xls, txt, and html output.
3405 SC/04 Eximstats: fixed display of large numbers with -nvr option
3407 SC/05 Eximstats: fixed merging of reports with empty tables.
3409 SC/06 Eximstats: added the -include_original_destination flag
3411 SC/07 Eximstats: removed tabs and trailing whitespace.
3413 TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
3415 TK/06 MBOX spool code: Add real "From " MBOX separator line
3416 so the .eml file is really in mbox format (even though
3417 most programs do not really care). Patch from Alex Miller.
3419 TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
3420 The latter is generated from $received_to and is only set if the
3421 message has one envelope recipient. SA can use these headers,
3422 obviously out-of-the-box. Patch from Alex Miller.
3424 PH/08 The ${def test on a variable was returning false if the variable's
3425 value was "0", contrary to what the specification has always said!
3426 The result should be true unless the variable is empty.
3428 PH/09 The syntax error of a character other than { following "${if
3429 def:variable_name" (after optional whitespace) was not being diagnosed.
3430 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
3431 accidental colon was present, for example, could give incorrect results.
3433 PH/10 Tidied the code in a number of places where the st_size field of a stat()
3434 result is used (not including appendfile, where other changes are about
3437 PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
3438 This involved changing a lot of size variables from int to off_t. It
3439 should work with maildirs and everything.
3441 TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
3442 spamd dying while we are connected to it.
3444 TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
3447 PH/12 Applied Alex Kiernan's patch for the API change for the error callback
3448 function for BDB 4.3.
3450 PH/13 Changed auto_thaw such that it does not apply to bounce messages.
3452 PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
3453 the sources for PCRE have been re-arranged and more files are now
3456 PH/15 The code I had for printing potentially long long variables in PH/11
3457 above was not the best (it lost precision). The length of off_t variables
3458 is now inspected at build time, and an appropriate printing format (%ld
3459 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
3460 to be "long long int" or "long int". This is needed for the internal
3461 formatting function string_vformat().
3463 PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
3464 the configuration file to be ":syslog", then the script "guesses" where
3465 the logs files are, rather than using the compiled in default. In our
3466 case the guess is not the same as the compiled default, so the script
3467 suddenly stopped working when I started to use syslog. The patch checks
3468 to see if log_file_path is "". If so, it attempts to read it from exim
3469 with no configuration file to get the compiled in version, before it
3470 falls back to the previous guessing code."
3472 TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
3473 implementing BATV in an Exim configuration. See NewStuff for the gory
3476 PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
3477 Makefile that are specific to HP-UX.
3479 PH/18 If the "use_postmaster" option was set for a recipient callout together
3480 with the "random" option, the postmaster address was used as the MAIL
3481 FROM address for the random test, but not for the subsequent recipient
3482 test. It is now used for both.
3484 PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
3485 patch removes a few documentation additions to RFC 3028, because the
3486 latest draft now contains them. It adds the new en;ascii-case comparator
3487 and a new error check for 8bit text in MIME parts. Comparator and
3488 require names are now matched exactly. I enabled the subaddress
3489 extension, but it is not well tested yet (read: it works for me)."
3491 PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
3492 rework some of the code of TK/09 above to avoid the hardwired use of
3493 "%lld" and "long long". Replaced the call to snprintf() with a call to
3496 PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
3497 records point to non-existent hosts", "retry timeout exceeded", and
3498 "retry time not reached for any host after a long failure period".
3500 PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
3501 experimental DomainKeys support:
3503 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
3504 (2) On an error such as an illegally used "control", the wrong name for
3505 the control was given.
3507 These problems did NOT occur unless DomainKeys support was compiled.
3509 PH/23 Added daemon_startup_retries and daemon_startup_sleep.
3511 PH/24 Added ${if match_ip condition.
3513 PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
3514 databases so that it will be absolutely obvious if a crash occurs in the
3515 DB library. This is a regular occurrence (often caused by mis-matched
3518 PH/26 Insert a lot of missing (void) casts for functions such as chown(),
3519 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
3520 picked up on a user's system that detects such things. There doesn't seem
3521 to be a gcc warning option for this - only an attribute that has to be
3522 put on the function's prototype. It seems that in Fedora Core 4 they have
3523 set this on a number of new functions. No doubt there will be more in due
3526 PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
3527 specify a transport. However, if an address that was verified by such a
3528 router was the subject of a callout, Exim crashed because it tried to
3529 read the rcpt_include_affixes from the non-existent transport. Now it
3530 just assumes that the setting of that option is false. This bug was
3531 introduced by 4.51/PH/31.
3533 PH/28 Changed -d+all to exclude +memory, because that information is very
3534 rarely of interest, but it makes the output a lot bigger. People tend to
3535 do -d+all out of habit.
3537 PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
3538 code in os-type was giving problems when libc.so lives in lib64, like on
3541 PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
3542 aren't the modern standard, and it seems that some systems' include files
3543 don't always have them. Exim was already checking for some of the newer
3544 ones like T_AAAA, and defining it itself. I've added checks for all the
3545 record types that Exim uses.
3547 PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
3548 not automatically generating a new one, as it is supposed to. This
3549 prevented TLS from working. If the file did exist, but contained invalid
3550 data, a new version was generated, as expected. It was only the case of a
3551 non-existent file that was broken.
3553 TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
3554 with a change in libdomainkeys > 0.64.
3556 TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
3557 from DNS. If the selector record carries the flag, it now has
3558 precedence over the domain-wide flag.
3560 TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
3562 PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
3563 the use of a port name that isn't defined in /etc/services) occurred, the
3564 message was deferred as in a normal delivery, and thus remained on the
3565 spool, instead of being failed because of the mua_wrapper setting. This
3566 is now fixed, and I tidied up some of the mua_wrapper messages at the
3569 SC/08 Eximstats: whilst parsing the mainlog(s), store information about
3570 the messages in a hash of arrays rather than using individual hashes.
3571 This is a bit cleaner and results in dramatic memory savings, albeit
3572 at a slight CPU cost.
3574 SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
3575 as requested by Marc Sherman.
3577 SC/10 Eximstats: added histograms for user specified patterns as requested
3580 SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
3582 PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
3583 fopen() in the content-scanning modules that did not already have it.
3589 TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
3590 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
3592 TK/02 Fix ACL "control" statement not being available in MIME ACL.
3594 TK/03 Fix ACL "regex" condition not being available in MIME ACL.
3596 PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
3597 to test Sieve filters that use "vacation".
3599 PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
3600 that changes the way the GnuTLS parameters are stored in the cache file.
3601 The new format can be generated externally. For backward compatibility,
3602 if the data in the cache doesn't make sense, Exim assumes it has read an
3603 old-format file, and it generates new data and writes a new file. This
3604 means that you can't go back to an older release without removing the
3607 PH/03 A redirect router that has both "unseen" and "one_time" set does not
3608 work if there are any delivery delays because "one_time" forces the
3609 parent to be marked "delivered", so its unseen clone is never tried
3610 again. For this reason, Exim now forbids the simultaneous setting of
3613 PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
3614 redirected to themselves ("homonym" addresses). Read the long ChangeLog
3615 entry if you want to know the details. The fix, however, neglected to
3616 consider the case when local delivery batching is involved. The test for
3617 "previously delivered" was not happening when checking to see if an
3618 address could be batched with a previous (undelivered) one; under
3619 certain circumstances this could lead to multiple deliveries to the same
3622 PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
3623 in its include files, and this causes problems building Exim.
3625 PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
3626 header_syntax) but Exim was just ignoring anything given after a slash.
3627 In particular, this caused confusion with an attempt to use "verify =
3628 reverse_host_lookup/defer_ok". An error is now given when options are
3629 supplied for verify items that do not have them. (Maybe reverse_host_
3630 lookup should have a defer_ok option, but that's a different point.)
3632 PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
3633 defined by RFC 821) to 2048, because there were problems with some AUTH
3634 commands, and RFC 1869 says the size should be increased for extended
3635 SMTP commands that take arguments.
3637 PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
3640 PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
3641 "unknown" error; now it says that the functionality isn't in the binary.
3643 PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
3644 an address' error message when a string expansion fails (syntax or
3645 whatever). Otherwise the password may appear in the log. Following change
3646 PH/42 below, there is no longer a chance of it appearing in a bounce
3649 PH/11 Installed exipick version 20050225.0 from John Jetmore.
3651 PH/12 If the last host in a fallback_hosts list was multihomed, only the first
3652 of its addresses was ever tried. (Bugzilla bug #2.)
3654 PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
3655 the result incorrectly in the debug output. (It correctly added a newline
3656 to what was transported.)
3658 TF/01 Added $received_time.
3660 PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
3661 commented out examples of how to interface to a virus scanner and to
3662 SpamAssassin. Also added commented examples of av_scanner and
3663 spamd_address settings.
3665 PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
3666 and controls are allowed in which ACLs. There were a couple of minor
3667 errors. Some of the entries in the conditions table (which is a table of
3668 where they are NOT allowed) were getting very unwieldy; rewrote them as a
3669 negation of where the condition IS allowed.
3671 PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
3673 PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
3674 header file does not have a version number, so I've had to invent a new
3675 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
3676 API. The code is untested by me (my Linux distribution still has 0.3.2 of
3677 radiusclient), but it was contributed by a Radius user.
3679 PH/18 Installed Lars Mainka's patch for the support of CRL collections in
3680 files or directories, for OpenSSL.
3682 PH/19 When an Exim process that is running as root has to create an Exim log
3683 file, it does so in a subprocess that runs as exim:exim so as to get the
3684 ownership right at creation (otherwise, other Exim processes might see
3685 the file with the wrong ownership). There was no test for failure of this
3686 fork() call, which would lead to the process getting stuck as it waited
3687 for a non-existent subprocess. Forks do occasionally fail when resources
3688 run out. I reviewed all the other calls to fork(); they all seem to check
3691 PH/20 When checking for unexpected SMTP input at connect time (before writing
3692 the banner), Exim was not dealing correctly with a non-positive return
3693 from the read() function. If the client had disconnected by this time,
3694 the result was a log entry for a synchronization error with an empty
3695 string after "input=" when read() returned zero. If read() returned -1
3696 (an event I could not check), uninitialized data bytes were printed.
3697 There were reports of junk text (parts of files, etc) appearing after
3700 PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
3702 PH/22 Added support for macro redefinition, and (re)definition in between
3703 driver and ACL definitions.
3705 PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
3706 forgetting to use the resulting value; it was using the unexpanded value.
3708 PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
3709 hadn't been configured. The fix is from Juergen Kreileder, who
3710 understands it better than I do:
3712 "Here's what I see happening with three configured cyrus_sasl
3713 authenticators configured (plain, login, cram-md5):
3715 On startup auth_cyrus_sasl_init() gets called for each of these.
3716 This means three calls to sasl_listmech() without a specified mech_list.
3717 => SASL tests which mechs of all available mechs actually work
3718 => three warnings about OTP not working
3719 => the returned list contains: plain, login, cram-md5, digest-md5, ...
3721 With the patch, sasl_listmech() also gets called three times. But now
3722 SASL's mech_list option is set to the server_mech specified in the the
3723 authenticator. Or in other words, the answer from sasl_listmech()
3724 gets limited to just the mech you're testing for (which is different
3726 => the return list contains just 'plain' or 'login', 'cram-md5' or
3727 nothing depending on the value of ob->server_mech.
3729 I've just tested the patch: Authentication still works fine,
3730 unavailable mechs specified in the exim configuration are still
3731 caught, and the auth.log warnings about OTP are gone."
3733 PH/25 When debugging is enabled, the contents of the command line are added
3734 to the debugging output, even when log_selector=+arguments is not
3737 PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
3738 answer is "GNU", and only if the return is "GNU/something" is the answer
3741 PH/27 $acl_verify_message is now set immediately after the failure of a
3742 verification in an ACL, and so is available in subsequent modifiers. In
3743 particular, the message can be preserved by coding like this:
3745 warn !verify = sender
3746 set acl_m0 = $acl_verify_message
3748 Previously, $acl_verify_message was set only while expanding "message"
3749 and "log_message" when a very denied access.
3751 PH/28 Modified OS/os.c-Linux with
3753 -#ifndef OS_LOAD_AVERAGE
3754 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
3756 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
3757 nomenclature these days.)
3759 PH/29 Installed patch from the Sieve maintainer that adds the options
3760 sieve_useraddress and sieve_subaddress to the redirect router.
3762 PH/30 In these circumstances:
3763 . Two addresses routed to the same list of hosts;
3764 . First host does not offer TLS;
3765 . First host accepts first address;
3766 . First host gives temporary error to second address;
3767 . Second host offers TLS and a TLS session is established;
3768 . Second host accepts second address.
3769 Exim incorrectly logged both deliveries with the TLS parameters (cipher
3770 and peerdn, if requested) that were in fact used only for the second
3773 PH/31 When doing a callout as part of verifying an address, Exim was not paying
3774 attention to any local part prefix or suffix that was matched by the
3775 router that accepted the address. It now behaves in the same way as it
3776 does for delivery: the affixes are removed from the local part unless
3777 rcpt_include_affixes is set on the transport.
3779 PH/32 Add the sender address, as F=<...>, to the log line when logging a
3780 timeout during the DATA phase of an incoming message.
3782 PH/33 Sieve envelope tests were broken for match types other than :is. I have
3783 applied a patch sanctioned by the Sieve maintainer.
3785 PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
3786 the uid or gid is negative. A case of a negative gid caused this to be
3787 noticed. The fix allows for either to be negative.
3789 PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
3790 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
3793 PH/36 The change PH/12 above was broken. Fixed it.
3795 PH/37 Exim used to check for duplicate addresses in the middle of routing, on
3796 the grounds that routing the same address twice would always produce the
3797 same answer. This might have been true once, but it is certainly no
3798 longer true now. Routing a child address may depend on the previous
3799 routing that produced that child. Some complicated redirection strategies
3800 went wrong when messages had multiple recipients, and made Exim's
3801 behaviour dependent on the order in which the addresses were given.
3803 I have moved the duplicate checking until after the routing is complete.
3804 Exim scans the addresses that are assigned to local and remote
3805 transports, and removes any duplicates. This means that more work will be
3806 done, as duplicates will always all be routed, but duplicates are
3807 presumably rare, so I don't expect this is of any significance.
3809 For deliveries to pipes, files, and autoreplies, the duplicate checking
3810 still happens during the routing process, since they are not going to be
3813 PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
3814 It corrects a timeout issue with spamd. This is Ian's comment: "The
3815 background is that sometimes spamd either never reads data from a
3816 connection it has accepted, or it never writes response data. The exiscan
3817 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
3818 blindly assumes that writes won't block so it may never time out."
3820 PH/39 Allow G after quota size as well as K and M.
3822 PH/40 The value set for $authenticated_id in an authenticator may not contain
3823 binary zeroes or newlines because the value is written to log lines and
3824 to spool files. There was no check on this. Now the value is run through
3825 the string_printing() function so that such characters are converted to
3826 printable escape sequences.
3828 PH/41 $message_linecount is a new variable that contains the total number of
3829 lines in the message. Compare $body_linecount, which is the count for the
3832 PH/42 Exim no longer gives details of delivery errors for specific addresses in
3833 bounce and delay warning messages, except in certain special cases, which
3836 (a) An SMTP error message from a remote host;
3837 (b) A message specified in a :fail: redirection;
3838 (c) A message specified in a "fail" command in a system filter;
3839 (d) A message specified in a FAIL return from the queryprogram router;
3840 (e) A message specified by the cannot_route_message router option.
3842 In these cases only, Exim does include the error details in bounce and
3843 warning messages. There are also a few cases where bland messages such
3844 as "unrouteable address" or "local delivery error" are given.
3846 PH/43 $value is now also set for the "else" part of a ${run expansion.
3848 PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
3849 being worked on, but at least Exim now implements the latest version to
3852 PH/45 In a pipe transport, although a timeout while waiting for the pipe
3853 process to complete was treated as a delivery failure, a timeout while
3854 writing the message to the pipe was logged, but erroneously treated as a
3855 successful delivery. Such timeouts include transport filter timeouts. For
3856 consistency with the overall process timeout, these timeouts are now
3857 treated as errors, giving rise to delivery failures by default. However,
3858 there is now a new Boolean option for the pipe transport called
3859 timeout_defer, which, if set TRUE, converts the failures into defers for
3860 both kinds of timeout. A transport filter timeout is now identified in
3863 PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
3864 systems where "make" and "gmake" are different, calling "gmake" at top
3865 level broke things. I've arranged for the value of $(MAKE) to be passed
3866 from the Makefile to this script so that it can call the same version of
3870 A note about Exim versions 4.44 and 4.50
3871 ----------------------------------------
3873 Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
3874 changes of various kinds. As a consequence, a big documentation update was
3875 needed. This delayed the release for rather longer than seemed good, especially
3876 in the light of a couple of (minor) security issues. Therefore, the changes
3877 that fixed bugs were backported into 4.43, to create a 4.44 maintenance
3878 release. So 4.44 and 4.50 are in effect two different branches that both start
3881 I have left the 4.50 change log unchanged; it contains all the changes since
3882 4.43. The change log for 4.44 is below; many of its items are identical to
3883 those for 4.50. This seems to be the most sensible way to preserve the
3884 historical information.
3890 1. Minor wording change to the doc/README.SIEVE file.
3892 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
3893 computation of the current number of files was incorrect.
3895 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3896 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3899 4. Give more explanation in the error message when the command for a transport
3900 filter fails to execute.
3902 5. There are several places where Exim runs a non-Exim command in a
3903 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3904 was being done only for the command run by the queryprogram router. It is
3905 now done for all such subprocesses. The other cases are: ${run, transport
3906 filters, and the commands run by the lmtp and pipe transports.
3908 6. Added CONFIGURE_GROUP build-time option.
3910 7. Some older OS have a limit of 256 on the maximum number of file
3911 descriptors. Exim was using setrlimit() to set 1000 as a large value
3912 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3913 systems. I've change it so that if it can't get 1000, it tries for 256.
3915 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3916 was an oversight, and furthermore, ever since the addition of extra
3917 controls (e.g. 4.43/32), the checks on when to allow different forms of
3918 "control" were broken. There should now be diagnostics for all cases when a
3919 control that does not make sense is encountered.
3921 9. Added the /retain_sender option to "control=submission".
3923 10. $recipients is now available in the predata ACL (oversight).
3925 11. Tidy the search cache before the fork to do a delivery from a message
3926 received from the command line. Otherwise the child will trigger a lookup
3927 failure and thereby defer the delivery if it tries to use (for example) a
3928 cached ldap connection that the parent has called unbind on.
3930 12. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3931 of $address_data from the recipient verification was clobbered by the
3932 sender verification.
3934 13. The value of address_data from a sender verification is now available in
3935 $sender_address_data in subsequent conditions in the ACL statement.
3937 14. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
3939 15. Added a new option "connect=<time>" to callout options, to set a different
3942 16. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3943 was its contents. (It was OK if the option was not defined at all.)
3945 17. A "Completed" log line is now written for messages that are removed from
3946 the spool by the -Mrm option.
3948 18. New variables $sender_verify_failure and $recipient_verify_failure contain
3949 information about exactly what failed.
3951 19. Added -dd to debug only the daemon process.
3953 20. Incorporated Michael Haardt's patch to ldap.c for improving the way it
3954 handles timeouts, both on the server side and network timeouts. Renamed the
3955 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
3957 21. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
3958 It is now set to "smtps".
3960 22. $host_address is now set to the target address during the checking of
3961 ignore_target_hosts.
3963 23. When checking ignore_target_hosts for an ipliteral router, no host name was
3964 being passed; this would have caused $sender_host_name to have been used if
3965 matching the list had actually called for a host name (not very likely,
3966 since this list is usually IP addresses). A host name is now passed as
3969 24. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3970 code that specifies a non-restarting handler (typically sigaction() in
3971 modern systems) in an attempt to fix a rare and obscure crash bug.
3973 25. Narrowed the window for a race in the daemon that could cause it to ignore
3974 SIGCHLD signals. This is not a major problem, because they are used only to
3975 wake it up if nothing else does.
3977 26. A malformed maildirsize file could cause Exim to calculate negative values
3978 for the mailbox size or file count. Odd effects could occur as a result.
3979 The maildirsize information is now recalculated if the size or filecount
3982 27. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3983 support for a long time. Removed HAVE_SYS_VFS_H.
3985 28. Installed the latest version of exipick from John Jetmore.
3987 29. In an address list, if the pattern was not a regular expression, an empty
3988 subject address (from a bounce message) matched only if the pattern was an
3989 empty string. Non-empty patterns were not even tested. This was the wrong
3990 because it is perfectly reasonable to use an empty address as part of a
3991 database query. An empty address is now tested by patterns that are
3992 lookups. However, all the other forms of pattern expect the subject to
3993 contain a local part and a domain, and therefore, for them, an empty
3994 address still always fails if the pattern is not itself empty.
3996 30. Exim went into a mad DNS loop when attempting to do a callout where the
3997 host was specified on an smtp transport, and looking it up yielded more
3998 than one IP address.
4000 31. Re-factored the code for checking spool and log partition space into a
4001 function that finds that data and another that does the check. The former
4002 is then used to implement four new variables: $spool_space, $log_space,
4003 $spool_inodes, and $log_inodes.
4005 32. The RFC2047 encoding function was originally intended for short strings
4006 such as real names; it was not keeping to the 75-character limit for
4007 encoded words that the RFC imposes. It now respects the limit, and
4008 generates multiple encoded words if necessary. To be on the safe side, I
4009 have increased the buffer size for the ${rfc2047: expansion operator from
4012 33. It is now permitted to omit both strings after an "if" condition; if the
4013 condition is true, the result is "true". As before, when the second string
4014 is omitted, a false condition yields an empty string. This makes it less
4015 cumbersome to write custom ACL and router conditions.
4017 34. Failure to deliver a bounce message always caused it to be frozen, even if
4018 there was an errors_to setting on the router. The errors_to setting is now
4021 35. If an IPv6 address is given for -bh or -bhc, it is now converted to the
4022 canonical form (fully expanded) before being placed in
4023 $sender_host_address.
4025 36. The table in the code that translates DNS record types into text (T_A to
4026 "A" for instance) was missing entries for NS and CNAME. It is just possible
4027 that this could have caused confusion if both these types were looked up
4028 for the same domain, because the text type is used as part of Exim's
4029 per-process caching. But the chance of anyone hitting this buglet seems
4032 37. The dnsdb lookup has been extended in a number of ways.
4034 (1) There is a new type, "zns", which walks up the domain tree until it
4035 finds some nameserver records. It should be used with care.
4037 (2) There is a new type, "mxh", which is like "mx" except that it returns
4038 just the host names, not the priorities.
4040 (3) It is now possible to give a list of domains (or IP addresses) to be
4041 looked up. The behaviour when one of the lookups defers can be
4042 controlled by a keyword.
4044 (4) It is now possible to specify the separator character for use when
4045 multiple records are returned.
4047 38. The dnslists ACL condition has been extended: it is now possible to supply
4048 a list of IP addresses and/or domains to be looked up in a particular DNS
4051 39. Added log_selector=+queue_time_overall.
4053 40. When running the queue in the test harness, wait just a tad after forking a
4054 delivery process, to get repeatability of debugging output.
4056 41. Include certificate and key file names in error message when GnuTLS fails
4057 to set them up, because the GnuTLS error message doesn't include the name
4058 of the failing file when there is a problem reading it.
4060 42. Allow both -bf and -bF in the same test run.
4062 43. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
4064 44. The "Exiscan patch" is now merged into the mainline Exim source.
4066 45. Sometimes the final signoff response after QUIT could fail to get
4067 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
4068 < 0 before doing a fflush(). This bug looks as though it goes back to the
4069 introduction of TLS in release 3.20, but "sometimes" must have been rare
4070 because the tests only now provoked it.
4072 46. Reset the locale to "C" after calling embedded Perl, in case it was changed
4073 (this can affect the format of dates).
4075 47. exim_tidydb, when checking for the continued existence of a message for
4076 which it has found a message-specific retry record, was not finding
4077 messages that were in split spool directories. Consequently, it was
4078 deleting retry records that should have stayed in existence.
4080 48. Steve fixed some bugs in eximstats.
4082 49. The SPA authentication driver was not abandoning authentication and moving
4083 on to the next authenticator when an expansion was forced to fail,
4084 contradicting the general specification for all authenticators. Instead it
4085 was generating a temporary error. It now behaves as specified.
4087 50. The default ordering of permitted cipher suites for GnuTLS was pessimal
4088 (the order specifies the preference for clients). The order is now AES256,
4089 AES128, 3DES, ARCFOUR128.
4091 51. Small patch to Sieve code - explicitly set From: when generating an
4094 52. Exim crashed if a remote delivery caused a very long error message to be
4095 recorded - for instance if somebody sent an entire SpamAssassin report back
4096 as a large number of 550 error lines. This bug was coincidentally fixed by
4097 increasing the size of one of Exim's internal buffers (big_buffer) that
4098 happened as part of the Exiscan merge. However, to be on the safe side, I
4099 have made the code more robust (and fixed the comments that describe what
4102 53. Now that there can be additional text after "Completed" in log lines (if
4103 the queue_time_overall log selector is set), a one-byte patch to exigrep
4104 was needed to allow it to recognize "Completed" as not the last thing in
4107 54. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
4108 patch that reportedly fixes this has been added. I am not expert enough to
4109 create a test for it. This is what the patch creator wrote:
4111 "I found a little strange behaviour of ldap code when working with
4112 Windows 2003 AD Domain, where users was placed in more than one
4113 Organization Units. When I tried to give exim partial DN, the exit code
4114 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
4115 But simultaneously result of request was absolutely normal ldap result,
4116 so I produce this patch..."
4118 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
4119 REFERENCE, so I have modified the code to exclude the patch when that macro
4122 55. Some experimental protocols are using DNS PTR records for new purposes. The
4123 keys for these records are domain names, not reversed IP addresses. The
4124 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
4125 leaves it alone. Component reversal etc. now happens only for IP addresses.
4128 56. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
4130 57. Double the size of the debug message buffer (to 2048) so that more of very
4131 long debug lines gets shown.
4133 58. The exicyclog utility now does better if the number of log files to keep
4134 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
4136 59. Two changes related to the smtp_active_hostname option:
4138 (1) $smtp_active_hostname is now available as a variable.
4139 (2) The default for smtp_banner uses $smtp_active_hostname instead
4140 of $primary_hostname.
4142 60. The host_aton() function is supposed to be passed a string that is known
4143 to be a valid IP address. However, in the case of IPv6 addresses, it was
4144 not checking this. This is a hostage to fortune. Exim now panics and dies
4145 if the condition is not met. A case was found where this could be provoked
4146 from a dnsdb PTR lookup with an IPv6 address that had more than 8
4147 components; fortuitously, this particular loophole had already been fixed
4148 by change 4.50/55 above.
4150 If there are any other similar loopholes, the new check in host_aton()
4151 itself should stop them being exploited. The report I received stated that
4152 data on the command line could provoke the exploit when Exim was running as
4153 exim, but did not say which command line option was involved. All I could
4154 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
4155 running as the user.
4158 61. There was a buffer overflow vulnerability in the SPA authentication code
4159 (which came originally from the Samba project). I have added a test to the
4160 spa_base64_to_bits() function which I hope fixes it.
4163 62. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
4164 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
4166 63. The daemon start-up calls getloadavg() while still root for those OS that
4167 need the first call to be done as root, but it missed one case: when
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