1 Change log file for Exim from version 4.21
2 ------------------------------------------
3 This document describes *changes* to previous versions, that might
4 affect Exim's operation, with an unchanged configuration file. For new
5 options, and new features, see the NewStuff file next to this ChangeLog.
11 JH/01 Rework error string handling in TLS interface so that the caller in
12 more cases is responsible for logging. This permits library-sourced
13 string to be attached to addresses during delivery, and collapses
14 pairs of long lines into single ones.
16 PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
17 during configuration. Wildcards are allowed and expanded.
19 JH/02 Rework error string handling in DKIM to pass more info back to callers.
20 This permits better logging.
22 JH/03 Rework the transport continued-connection mechanism: when TLS is active,
23 do not close it down and have the child transport start it up again on
24 the passed-on TCP connection. Instead, proxy the child (and any
25 subsequent ones) for TLS via a unix-domain socket channel. Logging is
26 affected: the continued delivery log lines do not have any DNSSEC, TLS
27 Certificate or OCSP information. TLS cipher information is still logged.
29 JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
30 identical IP addresses on different listening ports. Will also affect
33 PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
34 add noisy ifdef guards to special-case this sillyness.
35 Patch from Bernd Kuhls.
37 JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
38 than 255 are no longer allowed.
40 JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
41 Disable the session-cache too, which might reduce our load. Since we
42 currrectly use a new context for every connection, both as server and
43 client, there is no benefit for these.
44 GnuTLS appears to not support tickets server-side by default (we don't
45 call gnutls_session_ticket_enable_server()) but client side is enabled
46 by default on recent versions (3.1.3 +) unless the PFS priority string
49 PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
50 <https://reproducible-builds.org/specs/source-date-epoch/>.
52 JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
53 the check for any unsuccessful recipients did not notice the limit, and
54 erroneously found still-pending ones.
56 JH/08 Pipeline CHUNKING command and data together, on kernels that support
57 MSG_MORE. Only in-clear (not on TLS connections).
59 JH/09 Avoid using a temporary file during transport using dkim. Unless a
60 transport-filter is involved we can buffer the headers in memory for
61 creating the signature, and read the spool data file once for the
62 signature and again for transmission.
64 JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
65 4.77 as the kernel support then wasn't solid, having issues in 64bit
66 mode. Now, it's been long enough. Add support for FreeBSD also.
68 JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
69 case where the routing stage had gathered several addresses to send to
70 a host before calling the transport for the first, we previously failed
71 to close down TLS in the old transport process before passing the TCP
72 connection to the new process. The new one sent a STARTTLS command
73 which naturally failed, giving a failed delivery and bloating the retry
74 database. Investigation and fix prototype from Wolfgang Breyha.
76 JH/12 Fix check on SMTP command input synchronisation. Previously there were
77 false-negatives in the check that the sender had not preempted a response
78 or prompt from Exim (running as a server), due to that code's lack of
79 awareness of the SMTP input buffering.
81 PP/04 Add commandline_checks_require_admin option.
82 Exim drops privileges sanely, various checks such as -be aren't a
83 security problem, as long as you trust local users with access to their
84 own account. When invoked by services which pass untrusted data to
85 Exim, this might be an issue. Set this option in main configuration
86 AND make fixes to the calling application, such as using `--` to stop
89 JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
90 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
91 responses to those, into a single TLS record each way (this usually means
92 a single packet). As a side issue, smtp_enforce_sync now works on TLS
95 PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
96 affects you only if you're dancing at the edge of the param size limits.
97 If you are, and this message makes sense to you, then: raise the
98 configured limit or use OpenSSL 1.1. Nothing we can do for older
101 JH/14 For the "sock" variant of the malware scanner interface, accept an empty
102 cmdline element to get the documented default one. Previously it was
105 JH/15 Fix a crash in the smtp transport caused when two hosts in succession
106 are unsuable for non-message-specific reasons - eg. connection timeout,
107 banner-time rejection.
109 JH/16 Fix logging of delivery remote port, when specified by router, under
112 PP/06 Repair manualroute's ability to take options in any order, even if one
113 is the name of a transport.
116 HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
118 JH/17 Change the list-building routines interface to use the expanding-string
119 triplet model, for better allocation and copying behaviour.
121 JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
122 Previously it was constructed the first time a possibly-matching string
123 was met in the configuration file input during startup; now it is done
126 JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
127 compatible one, to avoid the (poorly documented) possibility of a config
128 file in the working directory redirecting the DB files, possibly correpting
129 some existing file. CVE-2017-10140 assigned for BDB.
131 JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
132 cache-hot. Previously, although the result was properly cached, the
133 initial verify call returned a defer.
135 JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
136 the main verify for receipient in uncached-mode.
138 JH/22 Retire historical build files to an "unsupported" subdir. These are
139 defined as "ones for which we have no current evidence of testing".
141 JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
142 if present. Previously it was ignored.
144 JH/24 Start using specified-initialisers in C structure init coding. This is
145 a C99 feature (it's 2017, so now considered safe).
147 JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
148 if was a fixed-sized field and bitmask ops via macros; it is now more
151 PP/07 GitHub PR 56: Apply MariaDB build fix.
152 Patch provided by Jaroslav Škarvada.
154 PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
155 during Coverity cleanups [4.87 JH/47]
156 Diagnosis and fix provided by Michael Fischer v. Mollard.
158 JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
159 the right size to place the terminating semicolon on its own folded
160 line, the header hash was calculated to an incorrect value thanks to
161 the (relaxed) space the fold became.
163 HS/02 Fix Bug 2130: large writes from the transport subprocess where chunked
164 and confused the parent.
166 JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
167 which could crash as a result. This could lead to undeliverable messages.
169 JH/28 Logging: "next input sent too soon" now shows where input was truncated
172 JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
173 matters on fast-turnover and PID-randomising systems, which were getting
174 out-of-order delivery.
176 JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
177 a possibly-overlapping copy. The symptom was that "Remote host closed
178 connection in response to HELO" was logged instead of the actual 4xx
181 JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
182 Previously only that bufferd was discarded, resulting in SYMTP command
189 JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
190 than -2003 did; needs libidn2 in addition to libidn.
192 JH/02 The path option on a pipe transport is now expanded before use.
194 PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
195 Patch provided by "Björn", documentation fix added too.
197 JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
198 missing a wire-to-host endian conversion.
200 JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
201 close after a BDAT command line could be taken as a following command,
202 giving a synch failure. Fix by only checking for synch immediately
203 before acknowledging the chunk.
205 PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
206 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
207 macro. Patches provided by Josh Soref.
209 JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
210 Previously we did not; the RFC seems ambiguous and VRFY is not listed
211 by IANA as a service extension. However, John Klensin suggests that we
214 JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
215 the dkim code may be unix-mode line endings rather than smtp wire-format
216 CRLF, so prepend a CR to any bare LF.
218 JH/07 Rationalise the coding for callout smtp conversations and transport ones.
219 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
221 JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
222 the first were themselves being wrongly included in the feed into dkim
223 processing; with most chunk sizes in use this resulted in an incorrect
224 body hash calculated value.
226 JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
227 DKIM signature block, for verification. Although advised against by
228 standards it is specifically not ruled illegal.
230 JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
232 JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
233 missing a body hash (the bh= tag).
235 JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
236 It seems that HAProxy sends the Proxy Protocol information in clear and
237 only then does a TLS startup, so do the same.
239 JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
240 TCP connections (such as for Spamd) unless the daemon successfully set
241 Fast Open mode on its listening sockets. This fixes breakage seen on
242 too-old kernels or those not configured for Fast Open, at the cost of
243 requiring both directions being enabled for TFO, and TFO never being used
244 by non-daemon-related Exim processes.
246 JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
247 endings, at least on the first header line. Try to canonify any that get
248 past that check, despite the cost.
250 JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
251 now limited to an arbitrary five deep, while parsing addresses with the
252 strip_excess_angle_brackets option enabled.
254 PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
255 instead leave the unprompted TLS handshake in socket buffer for the
256 TLS library to consume.
258 PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
260 PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
262 JH/16 Drop variables when they go out of scope. Memory management drops a whole
263 region in one operation, for speed, and this leaves assigned pointers
264 dangling. Add checks run only under the testsuite which checks all
265 variables at a store-reset and panics on a dangling pointer; add code
266 explicitly nulling out all the variables discovered. Fixes one known
267 bug: a transport crash, where a dangling pointer for $sending_ip_address
268 originally assigned in a verify callout, is re-used.
270 PP/06 Drop '.' from @INC in various Perl scripts.
272 PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
274 PP/08 Reduce a number of compilation warnings under clang; building with
275 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
276 should be warning-free.
278 JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
280 HS/01 Fix portability problems introduced by PP/08 for platforms where
281 realloc(NULL) is not equivalent to malloc() [SunOS et al].
283 HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
284 chunk. This allows us to accept broken chunked messages. We need a more
285 general solution here.
287 PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
288 already-broken messages in the queue.
290 JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
292 JH/19 Fix reference counting bug in routing-generated-address tracking.
298 JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
299 supports it and a size is available (ie. the sending peer gave us one).
301 JH/02 The obsolete acl condition "demime" is removed (finally, after ten
302 years of being deprecated). The replacements are the ACLs
303 acl_smtp_mime and acl_not_smtp_mime.
305 JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
306 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
307 or even an in-clear connection were permitted. Now, if the host lookup
308 was dnssec and dane was requested then the host is only used if the
309 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
310 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
311 if one fails this test.
312 This means that a poorly-configured remote DNS will make it incommunicado;
313 but it protects against a DNS-interception attack on it.
315 JH/04 Bug 1810: make continued-use of an open smtp transport connection
316 non-noisy when a race steals the message being considered.
318 JH/05 If main configuration option tls_certificate is unset, generate a
319 self-signed certificate for inbound TLS connections.
321 JH/06 Bug 165: hide more cases of password exposure - this time in expansions
322 in rewrites and routers.
324 JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
325 and logged a warning sing 4.83; now they are a configuration file error.
327 JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
328 (lacking @domain). Apply the same qualification processing as RCPT.
330 JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
332 JH/10 Support ${sha256:} applied to a string (as well as the previous
335 JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
336 a cutthrough deliver is pending, as we always want to make a connection.
337 This also avoids re-routing the message when later placing the cutthrough
338 connection after a verify cache hit.
339 Do not update it with the verify result either.
341 JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
342 when routing results in more than one destination address.
344 JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
345 signing (which inhibits the cutthrough capability). Previously only
346 the presence of an option was tested; now an expansion evaluating as
347 empty is permissible (obviously it should depend only on data available
348 when the cutthrough connection is made).
350 JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
351 the relevant preceding SMTP command did not note the pipelining mode.
353 JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
354 Previously they were not counted.
356 JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
357 as one having no matching records. Previously we deferred the message
358 that needed the lookup.
360 JH/17 Fakereject: previously logged as a normal message arrival "<="; now
361 distinguished as "(=".
363 JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
364 for missing MX records. Previously it only worked for missing A records.
366 JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
368 JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
369 after the data-go-ahead and data-ack. Patch from Jason Betts.
371 JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
372 even for a "none" policy. Patch from Tony Meyer.
374 JH/22 Fix continued use of a connection for further deliveries. If a port was
375 specified by a router, it must also match for the delivery to be
378 JH/23 Bug 1874: fix continued use of a connection for further deliveries.
379 When one of the recipients of a message was unsuitable for the connection
380 (has no matching addresses), we lost track of needing to mark it
381 deferred. As a result mail would be lost.
383 JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
385 JH/25 Decoding ACL controls is now done using a binary search; the source code
386 takes up less space and should be simpler to maintain. Merge the ACL
387 condition decode tables also, with similar effect.
389 JH/26 Fix problem with one_time used on a redirect router which returned the
390 parent address unchanged. A retry would see the parent address marked as
391 delivered, so not attempt the (identical) child. As a result mail would
394 JH/27 Fix a possible security hole, wherein a process operating with the Exim
395 UID can gain a root shell. Credit to http://www.halfdog.net/ for
396 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
399 JH/28 Enable {spool,log} filesystem space and inode checks as default.
400 Main config options check_{log,spool}_{inodes,space} are now
401 100 inodes, 10MB unless set otherwise in the configuration.
403 JH/29 Fix the connection_reject log selector to apply to the connect ACL.
404 Previously it only applied to the main-section connection policy
407 JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
409 PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
410 by me. Added RFC7919 DH primes as an alternative.
412 PP/02 Unbreak build via pkg-config with new hash support when crypto headers
413 are not in the system include path.
415 JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
416 GnuTLS, when a session startup failed (eg because the client disconnected)
417 Exim did stdio operations after fclose. This was exposed by a recent
418 change which nulled out the file handle after the fclose.
420 JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
421 signed directly by the cert-signing cert, rather than an intermediate
422 OCSP-signing cert. This is the model used by LetsEncrypt.
424 JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
426 HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
427 an incoming connection.
429 HS/02 Bug 1802: Do not half-close the connection after sending a request
432 HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
433 fallback to "prime256v1".
435 JH/34 SECURITY: Use proper copy of DATA command in error message.
436 Could leak key material. Remotely exploitable. CVE-2016-9963.
442 JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
443 and 3.4.4 - once the server is enabled to respond to an OCSP request
444 it does even when not requested, resulting in a stapling non-aware
445 client dropping the TLS connection.
447 TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
448 support variable-length bit vectors. No functional change.
450 TF/02 Improve the consistency of logging incoming and outgoing interfaces.
451 The I= interface field on outgoing lines is now after the H= remote
452 host field, same as incoming lines. There is a separate
453 outgoing_interface log selector which allows you to disable the
456 JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
457 If not running log_selector +smtp_connection the mainlog would be held
458 open indefinitely after a "too many connections" event, including to a
459 deleted file after a log rotate. Leave the per net connection logging
460 leaving it open for efficiency as that will be quickly detected by the
461 check on the next write.
463 HS/01 Bug 1671: Fix post transport crash.
464 Processing the wait-<transport> messages could crash the delivery
465 process if the message IDs didn't exist for some reason. When
466 using 'split_spool_directory=yes' the construction of the spool
467 file name failed already, exposing the same netto behaviour.
469 JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
470 mime_regex ACL conditions.
472 JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
473 to DSN fail messages (bounces): remote IP, remote greeting, remote response
474 to HELO, local diagnostic string.
476 JH/05 Downgrade message for a TLS-certificate-based authentication fail from
477 log line to debug. Even when configured with a tls authenticator many
478 client connections are expected to not authenticate in this way, so
479 an authenticate fail is not an error.
481 HS/02 Add the Exim version string to the process info. This way exiwhat
482 gives some more detail about the running daemon.
484 JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
485 matter for fast-change records such as DNSBLs.
487 JH/07 Bug 1678: Always record an interface option value, if set, as part of a
488 retry record, even if constant. There may be multiple transports with
489 different interface settings and the retry behaviour needs to be kept
492 JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
494 JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
496 JH/10 Bug 840: fix log_defer_output option of pipe transport
498 JH/11 Bug 830: use same host for all RCPTS of a message, even under
499 hosts_randomize. This matters a lot when combined with mua_wrapper.
501 JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
502 ${quote_pgsql:<string>} operator.
504 JH/13 Bug 1708: avoid misaligned access in cached lookup.
506 JH/14 Change header file name for freeradius-client. Relevant if compiling
507 with Radius support; from the Gentoo tree and checked under Fedora.
509 JH/15 Bug 1712: Introduce $prdr_requested flag variable
511 JH/16 Bug 1714: Permit an empty string as expansion result for transport
512 option transport_filter, meaning no filtering.
514 JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
516 JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
517 defaults to "*" (all hosts). The variable is now available when not built
518 with TLS, default unset, mainly to enable keeping the testsuite sane.
519 If a server certificate is not supplied (via tls_certificate) an error is
520 logged, and clients will find TLS connections fail on startup. Presumably
521 they will retry in-clear.
522 Packagers of Exim are strongly encouraged to create a server certificate
523 at installation time.
525 HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
526 with the $config_file variable.
528 JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
529 in transport context, after the attempt, and per-recipient. The latter type
530 is per host attempted. The event data is the error message, and the errno
531 information encodes the lookup type (A vs. MX) used for the (first) host,
532 and the trailing two digits of the smtp 4xx response.
534 GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
535 to write to mainlog (or rejectlog, paniclog) in the window between file
536 creation and permissions/ownership being changed. Particularly affects
537 installations where exicyclog is run as root, rather than exim user;
538 result is that the running daemon panics and dies.
540 JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
542 JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
543 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
544 "pri" and "weight". Note that the previous implicit priority given by the
545 list order is no longer honoured.
547 JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
550 JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
551 by defining SUPPORT_SOCKS.
553 JH/26 Move PROXY support from Experimental to mainline, enabled for a build
554 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
555 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
556 variables are renamed to proxy_{local,external}_{address,port}.
558 JH/27 Move Internationalisation support from Experimental to mainline, enabled
559 for a build by defining SUPPORT_I18N
561 JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
562 of the query string, and make ${quote_redis:} do that quoting.
564 JH/29 Move Events support from Experimental to mainline, enabled by default
565 and removable for a build by defining DISABLE_EVENT.
567 JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
569 JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
570 cached by the daemon.
572 JH/32 Move Redis support from Experimental to mainline, enabled for a build
573 by defining LOOKUP_REDIS. The libhiredis library is required.
575 JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
576 keys are given for lookup.
578 JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
579 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
580 only supported when built with TLS support. The PolarSSL SHA routines
581 are still used when the TLS library is too old for convenient support.
583 JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
584 openssl_options), for security. OpenSSL forces this from version 1.1.0
585 server-side so match that on older versions.
587 JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
588 allocation for $value could be released as the expansion processing
589 concluded, but leaving the global pointer active for it.
591 JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
592 and to use the domains and local_parts ACL conditions.
594 JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
595 incorrectly not doubled on cutthrough transmission, hence seen as a
596 body-termination at the receiving system - resulting in truncated mails.
597 Commonly the sender saw a TCP-level error, and retransmitted the message
598 via the normal store-and-forward channel. This could result in duplicates
599 received - but deduplicating mailstores were liable to retain only the
600 initial truncated version.
602 JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
604 JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
606 JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
607 we're in there, support oversigning also; bug 1309.
609 JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
611 HS/04 Add support for keep_environment and add_environment options.
613 JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
614 either intentional arithmetic overflow during PRNG, or testing config-
617 JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
618 delivery resulted in actual delivery. Cancel cutthrough before DATA
621 JH/45 Fix cutthrough, when connection not opened by verify and target hard-
622 rejects a recipient: pass the reject to the originator.
624 JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
625 Many were false-positives and ignorable, but it's worth fixing the
628 JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
629 for the new environment-manipulation done at startup. Move the routines
630 from being local to tls.c to being global via the os.c file.
632 JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
633 an extract embedded as result-arg for a map, the first arg for extract
634 is unavailable so we cannot tell if this is a numbered or keyed
635 extraction. Accept either.
641 JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
644 JH/02 The smtp transport option "multi_domain" is now expanded.
646 JH/03 The smtp transport now requests PRDR by default, if the server offers
649 JH/04 Certificate name checking on server certificates, when exim is a client,
650 is now done by default. The transport option tls_verify_cert_hostnames
651 can be used to disable this per-host. The build option
652 EXPERIMENTAL_CERTNAMES is withdrawn.
654 JH/05 The value of the tls_verify_certificates smtp transport and main options
655 default to the word "system" to access the system default CA bundle.
656 For GnuTLS, only version 3.0.20 or later.
658 JH/06 Verification of the server certificate for a TLS connection is now tried
659 (but not required) by default. The verification status is now logged by
660 default, for both outbound TLS and client-certificate supplying inbound
663 JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
666 JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
667 Status Notification (bounce) messages are now MIME format per RFC 3464.
668 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
669 under the control of the dsn_advertise_hosts option, and routers may
670 have a dsn_lasthop option.
672 JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
673 default, modifiable by a malware= option. The list separator for
674 the options can now be changed in the usual way. Bug 68.
676 JH/10 The smtp_receive_timeout main option is now expanded before use.
678 JH/11 The incoming_interface log option now also enables logging of the
679 local interface on delivery outgoing connections.
681 JH/12 The cutthrough-routing facility now supports multi-recipient mails,
682 if the interface and destination host and port all match.
684 JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
687 JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
688 Patch from Andrew Lewis.
690 JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
691 now supports optional time-restrictions, weighting, and priority
692 modifiers per server. Patch originally by <rommer@active.by>.
694 JH/16 The spamd_address main option now supports a mixed list of local
695 and remote servers. Remote servers can be IPv6 addresses, and
696 specify a port-range.
698 JH/17 Bug 68: The spamd_address main option now supports an optional
699 timeout value per server.
701 JH/18 Bug 1581: Router and transport options headers_add/remove can
702 now have the list separator specified.
704 JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
707 JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
710 JH/21 Support for the A6 type of dns record is withdrawn.
712 JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
713 rather than the verbs used.
715 JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
716 from 255 to 1024 chars.
718 JH/24 Verification callouts now attempt to use TLS by default.
720 HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
721 are generic router options now. The defaults didn't change.
723 JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
724 Original patch from Alexander Shikoff, worked over by JH.
726 HS/02 Bug 1575: exigrep falls back to autodetection of compressed
727 files if ZCAT_COMMAND is not executable.
729 JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
731 JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
733 JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
734 Normally benign, it bites when the pair was led to by a CNAME;
735 modern usage is to not canonicalize the domain to a CNAME target
736 (and we were inconsistent anyway for A-only vs AAAA+A).
738 JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
740 JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
741 when evaluating $sender_host_dnssec.
743 JH/31 Check the HELO verification lookup for DNSSEC, adding new
744 $sender_helo_dnssec variable.
746 JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
748 JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
750 JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
752 JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
753 documented as working, but never had. Support all but $spam_report.
755 JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
756 added for tls authenticator.
758 HS/03 Add perl_taintmode main config option
764 TL/01 When running the test suite, the README says that variables such as
765 no_msglog_check are global and can be placed anywhere in a specific
766 test's script, however it was observed that placement needed to be near
767 the beginning for it to behave that way. Changed the runtest perl
768 script to read through the entire script once to detect and set these
769 variables, reset to the beginning of the script, and then run through
770 the script parsing/test process like normal.
772 TL/02 The BSD's have an arc4random API. One of the functions to induce
773 adding randomness was arc4random_stir(), but it has been removed in
774 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
775 function when detected.
777 JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
778 cause callback expansion.
780 TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
781 syntax errors in an expansion can be treated as a string instead of
782 logging or causing an error, due to the internal use of bool_lax
783 instead of bool when processing it.
785 JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
786 server certificates when making smtp deliveries.
788 JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
790 JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
792 TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
794 TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
795 Merged patch from Sebastian Wiedenroth.
797 JH/05 Fix results-pipe from transport process. Several recipients, combined
798 with certificate use, exposed issues where response data items split
799 over buffer boundaries were not parsed properly. This eventually
800 resulted in duplicates being sent. This issue only became common enough
801 to notice due to the introduction of connection certificate information,
802 the item size being so much larger. Found and fixed by Wolfgang Breyha.
804 JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
805 size buffer was used, resulting in syntax errors when an expansion
808 JH/07 Add support for directories of certificates when compiled with a GnuTLS
809 version 3.3.6 or later.
811 JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
812 is EXPERIMENTAL_EVENT, the main-configuration and transport options
813 both become "event_action", the variables become $event_name, $event_data
814 and $event_defer_errno. There is a new variable $verify_mode, usable in
815 routers, transports and related events. The tls:cert event is now also
816 raised for inbound connections, if the main configuration event_action
819 TL/06 In test suite, disable OCSP for old versions of openssl which contained
820 early OCSP support, but no stapling (appears to be less than 1.0.0).
822 JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
823 server certificate names available under the smtp transport option
824 "tls_verify_cert_hostname" now do not permit multi-component wildcard
827 JH/10 Time-related extraction expansions from certificates now use the main
828 option "timezone" setting for output formatting, and are consistent
829 between OpenSSL and GnuTLS compilations. Bug 1541.
831 JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
832 encoded parameter in the incoming message. Bug 1558.
834 JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
835 include certificate info, eximon was claiming there were spoolfile
838 JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
840 JH/14 Log delivery-related information more consistently, using the sequence
841 "H=<name> [<ip>]" wherever possible.
843 TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
844 are problematic for Debian distribution, omit them from the release
847 JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
849 JH/16 Fix string representation of time values on 64bit time_t architectures.
852 JH/17 Fix a null-indirection in certextract expansions when a nondefault
853 output list separator was used.
858 TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
859 checkers that were complaining about end of non-void function with no
862 JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
863 This was a regression introduced in 4.83 by another bugfix.
865 JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
867 TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
868 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
874 TF/01 Correctly close the server side of TLS when forking for delivery.
876 When a message was received over SMTP with TLS, Exim failed to clear up
877 the incoming connection properly after forking off the child process to
878 deliver the message. In some situations the subsequent outgoing
879 delivery connection happened to have the same fd number as the incoming
880 connection previously had. Exim would try to use TLS and fail, logging
881 a "Bad file descriptor" error.
883 TF/02 Portability fix for building lookup modules on Solaris when the xpg4
884 utilities have not been installed.
886 JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
887 temporary space as the ACL may create new global variables.
889 TL/01 LDAP support uses per connection or global context settings, depending
890 upon the detected version of the libraries at build time.
892 TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
893 to extract and use the src ip:port in logging and expansions as if it
894 were a direct connection from the outside internet. PPv2 support was
895 updated based on HAProxy spec change in May 2014.
897 JH/02 Add ${listextract {number}{list}{success}{fail}}.
899 TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
900 Properly escape header and check for NULL return.
902 PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
905 JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
907 TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
908 characters in header names, implemented as a verify condition.
909 Contributed by Michael Fischer v. Mollard.
911 TL/05 Rename SPF condition results err_perm and err_temp to standardized
912 results permerror and temperror. Previous values are deprecated but
913 still accepted. In a future release, err_perm and err_temp will be
914 completely removed, which will be a backward incompatibility if the
915 ACL tests for either of these two old results. Patch contributed by
916 user bes-internal on the mailing list.
918 JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
920 JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
921 selectors, in both main and reject logs.
923 JH/06 Log outbound-TLS and port details, subject to log selectors, for a
926 JH/07 Add malware type "sock" for talking to simple daemon.
928 JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
930 JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
931 routers/transports under cutthrough routing.
933 JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
934 numbers. Touch up "bool" conditional to keep the same definition.
936 TL/06 Remove duplicated language in spec file from 4.82 TL/16.
938 JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
940 JH/12 Expand items in router/transport headers_add or headers_remove lists
941 individually rather than the list as a whole. Bug 1452.
943 Required for reasonable handling of multiple headers_ options when
944 they may be empty; requires that headers_remove items with embedded
945 colons must have them doubled (or the list-separator changed).
947 TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
948 view the policy declared in the DMARC record. Currently, $dmarc_status
949 is a combined value of both the record presence and the result of the
952 JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
954 JH/14 New options dnssec_request_domains, dnssec_require_domains on the
955 dnslookup router and the smtp transport (applying to the forward
958 TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
959 of ldap servers used for a specific lookup. Patch provided by Heiko
962 JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
963 New variable $lookup_dnssec_authenticated for observability.
965 TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
966 Patch submitted by Lars Timman.
968 JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
970 TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
971 Requires trusted mode and valid format message id, aborts otherwise.
972 Patch contributed by Heiko Schlichting.
974 JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
975 certextract with support for various fields. Bug 1358.
977 JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
978 is requested by default, modifiable by smtp transport option
981 JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
982 operate on certificate variables to give certificate fingerprints
983 Also new ${sha256:cert_variable}.
985 JH/23 The PRDR feature is moved from being Experimental into the mainline.
987 TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
988 Christian Aistleitner.
990 JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
992 TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
993 file. Patch from Wolfgang Breyha.
995 JH/25 Expand the coverage of the delivery $host and $host_address to
996 client authenticators run in verify callout. Bug 1476.
998 JH/26 Port service names are now accepted for tls_on_connect_ports, to
999 align with daemon_smtp_ports. Bug 72.
1001 TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1002 support and error reporting did not work properly.
1004 TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1005 and is readable. Patch from Andrew Colin Kissa.
1007 TL/14 Enhance documentation of ${run expansion and how it parses the
1008 commandline after expansion, particularly in the case when an
1009 unquoted variable expansion results in an empty value.
1011 JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1013 PP/02 Fix internal collision of T_APL on systems which support RFC3123
1014 by renaming away from it. Addresses GH issue 15, reported by
1017 JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1019 TL/15 SECURITY: prevent double expansion in math comparison functions
1020 (can expand unsanitized data). Not remotely exploitable.
1027 PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1029 PP/02 Make -n do something, by making it not do something.
1030 When combined with -bP, the name of an option is not output.
1032 PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1035 PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1036 $sender_host_name and config options to manage this, and basic check
1039 PP/05 DSCP support for outbound connections and control modifier for inbound.
1041 PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
1042 (Only plugin which currently uses this is kerberos4, which nobody should
1043 be using, but we should make it available and other future plugins might
1044 conceivably use it, even though it would break NAT; stuff *should* be
1045 using channel bindings instead).
1047 PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
1048 name; added for Sendmail compatibility; requires admin caller.
1049 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1050 just ignore it); requires trusted caller.
1051 Also parse but ignore: -Ac -Am -X<logfile>
1054 TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
1056 TL/02 Add +smtp_confirmation as a default logging option.
1058 TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1059 Patch by Magnus Holmgren from 2007-02-20.
1061 TL/04 Bugzilla 1281 - Spec typo.
1062 Bugzilla 1283 - Spec typo.
1063 Bugzilla 1290 - Spec grammar fixes.
1065 TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
1067 TL/06 Add Experimental DMARC support using libopendmarc libraries.
1069 TL/07 Fix an out of order global option causing a segfault. Reported to dev
1070 mailing list by by Dmitry Isaikin.
1072 JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1074 JH/02 Support "G" suffix to numbers in ${if comparisons.
1076 PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1078 NM/01 Bugzilla 1197 - Spec typo
1079 Bugzilla 1196 - Spec examples corrections
1081 JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
1083 PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1084 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1087 PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1088 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1090 JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1091 "acl {{name}{arg}...}", and optional args on acl condition
1094 JH/05 Permit multiple router/transport headers_add/remove lines.
1096 JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1098 JH/07 Avoid using a waiting database for a single-message-only transport.
1099 Performance patch from Paul Fisher. Bugzilla 1262.
1101 JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1104 JH/09 Add $headers_added variable, with content from use of ACL modifier
1105 add_header (but not yet added to the message). Bugzilla 199.
1107 JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1108 Pulled from Bugzilla 817 by Wolfgang Breyha.
1110 PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1112 (nb: this is the same fix as in Exim 4.80.1)
1114 JH/11 Add A= logging on delivery lines, and a client_set_id option on
1117 JH/12 Add optional authenticated_sender logging to A= and a log_selector
1120 PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1122 PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1123 advertise SMTP AUTH mechanism to us, instead of a generic
1124 protocol violation error. Also, make Exim more robust to bad
1125 data from the Dovecot auth socket.
1127 TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1129 When a queue runner is handling a message, Exim first routes the
1130 recipient addresses, during which it prunes them based on the retry
1131 hints database. After that it attempts to deliver the message to
1132 any remaining recipients. It then updates the hints database using
1135 So if a recipient address works intermittently, it can get repeatedly
1136 deferred at routing time. The retry hints record remains fresh so the
1137 address never reaches the final cutoff time.
1139 This is a fairly common occurrence when a user is bumping up against
1140 their storage quota. Exim had some logic in its local delivery code
1141 to deal with this. However it did not apply to per-recipient defers
1142 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1144 This change adds a proper retry rule check during routing so that the
1145 final cutoff time is checked against the message's age. We only do
1146 this check if there is an address retry record and there is not a
1147 domain retry record; this implies that previous attempts to handle
1148 the address had the retry_use_local_parts option turned on. We use
1149 this as an approximation for the destination being like a local
1150 delivery, as in LMTP.
1152 I suspect this new check makes the old local delivery cutoff check
1153 redundant, but I have not verified this so I left the code in place.
1155 TF/02 Correct gecos expansion when From: is a prefix of the username.
1157 Test 0254 submits a message to Exim with the header
1161 When I ran the test suite under the user fanf2, Exim expanded
1162 the header to contain my full name, whereas it should have added
1163 a Resent-Sender: header. It erroneously treats any prefix of the
1164 username as equal to the username.
1166 This change corrects that bug.
1168 GF/01 DCC debug and logging tidyup
1169 Error conditions log to paniclog rather than rejectlog.
1170 Debug lines prefixed by "DCC: " to remove any ambiguity.
1172 TF/03 Avoid unnecessary rebuilds of lookup-related code.
1174 PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1175 Bug spotted by Jeremy Harris; was flawed since initial commit.
1176 Would have resulted in OCSP responses post-SNI triggering an Exim
1177 NULL dereference and crash.
1179 JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1181 PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1182 Bug detection, analysis and fix by Samuel Thibault.
1183 Bugzilla 1331, Debian bug #698092.
1185 SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1187 JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1188 Server implementation by Todd Lyons, client by JH.
1189 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1190 config variable "prdr_enable" controls whether the server
1191 advertises the facility. If the client requests PRDR a new
1192 acl_data_smtp_prdr ACL is called once for each recipient, after
1193 the body content is received and before the acl_smtp_data ACL.
1194 The client is controlled by both of: a hosts_try_prdr option
1195 on the smtp transport, and the server advertisement.
1196 Default client logging of deliveries and rejections involving
1197 PRDR are flagged with the string "PRDR".
1199 PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1200 fclose(). Diagnosis by Todd Lyons.
1202 PP/17 Update configure.default to handle IPv6 localhost better.
1203 Patch by Alain Williams (plus minor tweaks).
1206 PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1207 This is now consistent with GnuTLS, and is now documented: the
1208 previous undocumented portable approach to treating the option as
1209 unset was to force an expansion failure. That still works, and
1210 an empty string is now equivalent.
1212 PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1213 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1214 not performing validation itself.
1216 PP/20 Added force_command boolean option to pipe transport.
1217 Patch from Nick Koston, of cPanel Inc.
1219 JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1222 TF/04 Added udpsend ACL modifier and hexquote expansion operator
1224 PP/21 Fix eximon continuous updating with timestamped log-files.
1225 Broken in a format-string cleanup in 4.80, missed when I repaired the
1226 other false fix of the same issue.
1227 Report and fix from Heiko Schlichting.
1230 PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1231 Report from Prashanth Katuri.
1233 PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1234 It's SecureTransport, so affects any MacOS clients which use the
1235 system-integrated TLS libraries, including email clients.
1237 PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1238 using a MIME ACL for non-SMTP local injection.
1239 Report and assistance in diagnosis by Warren Baker.
1241 TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1243 JH/16 Fix comparisons for 64b. Bugzilla 1385.
1245 TL/09 Add expansion variable $authenticated_fail_id to keep track of
1246 last id that failed so it may be referenced in subsequent ACL's.
1248 TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1251 TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1252 ldap library initialization, allowing self-signed CA's to be
1253 used. Also properly sets require_cert option later in code by
1254 using NULL (global ldap config) instead of ldap handle (per
1255 session). Bug diagnosis and testing by alxgomz.
1257 TL/12 Enhanced documentation in the ratelimit.pl script provided in
1258 the src/util/ subdirectory.
1260 TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1261 renamed to Transport Post Delivery Action by Jeremy Harris, as
1264 TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1265 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1266 redis_servers = needs to be configured which will be used by the redis
1267 lookup. Patch from Warren Baker, of The Packet Hub.
1269 TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1271 TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1272 hostname or reverse DNS when processing a host list. Used suggestions
1273 from multiple comments on this bug.
1275 TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1277 TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1278 Missed a few lines, added it to make the runtest require no keyboard
1281 TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1282 contains upper case chars. Make router use caseful_local_part.
1284 TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1285 support when GnuTLS has been built with p11-kit.
1291 PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1293 This, or similar/improved, will also be change PP/11 of 4.82.
1299 PP/01 Handle short writes when writing local log-files.
1300 In practice, only affects FreeBSD (8 onwards).
1301 Bugzilla 1053, with thanks to Dmitry Isaikin.
1303 NM/01 Bugzilla 949 - Documentation tweak
1305 NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1308 NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1310 PP/02 Implemented gsasl authenticator.
1312 PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1314 PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
1315 `pkg-config foo` for cflags/libs.
1317 PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
1318 with rest of GSASL and with heimdal_gssapi.
1320 PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
1321 `pkg-config foo` for cflags/libs for the TLS implementation.
1323 PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
1324 properties get this fed in as external SSF. A number of robustness
1325 and debugging improvements to the cyrus_sasl authenticator.
1327 PP/08 cyrus_sasl server now expands the server_realm option.
1329 PP/09 Bugzilla 1214 - Log authentication information in reject log.
1330 Patch by Jeremy Harris.
1332 PP/10 Added dbmjz lookup type.
1334 PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
1336 PP/12 MAIL args handles TAB as well as SP, for better interop with
1337 non-compliant senders.
1338 Analysis and variant patch by Todd Lyons.
1340 NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
1341 Bug report from Lars Müller <lars@samba.org> (via SUSE),
1342 Patch from Dirk Mueller <dmueller@suse.com>
1344 PP/13 tls_peerdn now print-escaped for spool files.
1345 Observed some $tls_peerdn in wild which contained \n, which resulted
1346 in spool file corruption.
1348 PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
1349 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
1350 or write after TLS renegotiation, which otherwise led to messages
1353 TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
1354 as a tracking header (ie: a signed header comes before the signature).
1355 Patch from Wolfgang Breyha.
1357 JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
1358 comma-sep list; embedded commas doubled.
1360 JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
1362 PP/15 LDAP: Check for errors of TLS initialisation, to give correct
1364 Report and patch from Dmitry Banschikov.
1366 PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
1367 Removed SSL_clear() after SSL_new() which led to protocol negotiation
1368 failures. We appear to now support TLS1.1+ with Exim.
1370 PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
1371 lets Exim select keys and certificates based upon TLS SNI from client.
1372 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
1373 before an outbound SMTP session. New log_selector, +tls_sni.
1375 PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
1376 NULL dereference. Report and patch from Alun Jones.
1378 PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
1379 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
1380 Not seeing resolver debug output on NetBSD, but suspect this is a
1381 resolver implementation change.
1383 PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
1384 Left warnings. Added "eximon gdb" invocation mode.
1386 PP/21 Defaulting "accept_8bitmime" to true, not false.
1388 PP/22 Added -bw for inetd wait mode support.
1390 PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
1391 locate the relevant includes and libraries. Made this the default.
1393 PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
1394 Bugzilla 1246, report and most of solution from Tomasz Kusy.
1396 JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
1397 This may cause build issues on older platforms.
1399 PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
1400 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
1401 gnutls_require_mac & gnutls_require_protocols (no longer supported).
1402 Added SNI support via GnuTLS too.
1403 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
1405 PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
1407 PP/27 Applied dnsdb SPF support patch from Janne Snabb.
1408 Applied second patch from Janne, implementing suggestion to default
1409 multiple-strings-in-record handling to match SPF spec.
1411 JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
1413 PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
1414 read-only, out of scope).
1415 Patch from Wolfgang Breyha, report from Stuart Northfield.
1417 PP/29 Fix three issues highlighted by clang analyser static analysis.
1418 Only crash-plausible issue would require the Cambridge-specific
1419 iplookup router and a misconfiguration.
1420 Report from Marcin Mirosław.
1422 PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
1424 PP/31 %D in printf continues to cause issues (-Wformat=security), so for
1425 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
1426 As part of this, removing so much warning spew let me fix some minor
1427 real issues in debug logging.
1429 PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
1430 assignment on my part. Fixed.
1432 PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
1433 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
1434 Janne Snabb (who went above and beyond: thank you).
1436 PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
1437 string otherwise requires a connection and a bunch more work and it's
1438 relatively easy to get wrong. Should also expose TLS library linkage
1441 PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
1442 64-bit ${eval} (JH/03).
1444 PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
1445 GNU libc to support some of the 64-bit stuff, should not lead to
1446 conflicts. Defined before os.h is pulled in, so if a given platform
1447 needs to override this, it can.
1449 PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
1450 protection layer was required, which is not implemented.
1451 Bugzilla 1254, patch from Wolfgang Breyha.
1453 PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
1454 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
1455 tls_dhparam take prime identifiers. Also unbreak combination of
1456 OpenSSL+DH_params+TLSSNI.
1458 PP/39 Disable SSLv2 by default in OpenSSL support.
1464 PP/01 Solaris build fix for Oracle's LDAP libraries.
1465 Bugzilla 1109, patch from Stephen Usher.
1467 TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
1469 TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
1472 TF/02 Fix a couple more cases where we did not log the error message
1473 when unlink() failed. See also change 4.74-TF/03.
1475 TF/03 Make the exiwhat support code safe for signals. Previously Exim might
1476 lock up or crash if it happened to be inside a call to libc when it
1477 got a SIGUSR1 from exiwhat.
1479 The SIGUSR1 handler appends the current process status to the process
1480 log which is later printed by exiwhat. It used to use the general
1481 purpose logging code to do this, but several functions it calls are
1482 not safe for signals.
1484 The new output code in the SIGUSR1 handler is specific to the process
1485 log, and simple enough that it's easy to inspect for signal safety.
1486 Removing some special cases also simplifies the general logging code.
1487 Removing the spurious timestamps from the process log simplifies
1490 TF/04 Improved ratelimit ACL condition.
1492 The /noupdate option has been deprecated in favour of /readonly which
1493 has clearer semantics. The /leaky, /strict, and /readonly update modes
1494 are mutually exclusive. The update mode is no longer included in the
1495 database key; it just determines when the database is updated. (This
1496 means that when you upgrade Exim will forget old rate measurements.)
1498 Exim now checks that the per_* options are used with an update mode that
1499 makes sense for the current ACL. For example, when Exim is processing a
1500 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
1501 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
1502 must specify per_mail/readonly. If you omit the update mode it defaults to
1503 /leaky where that makes sense (as before) or /readonly where required.
1505 The /noupdate option is now undocumented but still supported for
1506 backwards compatibility. It is equivalent to /readonly except that in
1507 ACLs where /readonly is required you may specify /leaky/noupdate or
1508 /strict/noupdate which are treated the same as /readonly.
1510 A useful new feature is the /count= option. This is a generalization
1511 of the per_byte option, so that you can measure the throughput of other
1512 aggregate values. For example, the per_byte option is now equivalent
1513 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
1515 The per_rcpt option has been generalized using the /count= mechanism
1516 (though it's more complicated than the per_byte equivalence). When it is
1517 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
1518 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
1519 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
1520 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
1521 Note that using per_rcpt with a non-readonly update mode in more than
1522 one ACL will cause the recipients to be double-counted. (The per_mail
1523 and per_byte options don't have this problem.)
1525 The handling of very low rates has changed slightly. If the computed rate
1526 is less than the event's count (usually one) then this event is the first
1527 after a long gap. In this case the rate is set to the same as this event's
1528 count, so that the first message of a spam run is counted properly.
1530 The major new feature is a mechanism for counting the rate of unique
1531 events. The new per_addr option counts the number of different
1532 recipients that someone has sent messages to in the last time period. It
1533 behaves like per_rcpt if all the recipient addresses are different, but
1534 duplicate recipient addresses do not increase the measured rate. Like
1535 the /count= option this is a general mechanism, so the per_addr option
1536 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
1537 example, measure the rate that a client uses different sender addresses
1538 with the options per_mail/unique=$sender_address. There are further
1539 details in the main documentation.
1541 TF/05 Removed obsolete $Cambridge$ CVS revision strings.
1543 TF/06 Removed a few PCRE remnants.
1545 TF/07 Automatically extract Exim's version number from tags in the git
1546 repository when doing development or release builds.
1548 PP/02 Raise smtp_cmd_buffer_size to 16kB.
1549 Bugzilla 879. Patch from Paul Fisher.
1551 PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
1552 Heavily based on revision 40f9a89a from Simon Arlott's tree.
1555 PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
1557 PP/05 Variable $av_failed, true if the AV scanner deferred.
1558 Bugzilla 1078. Patch from John Horne.
1560 PP/06 Stop make process more reliably on build failure.
1561 Bugzilla 1087. Patch from Heiko Schlittermann.
1563 PP/07 Make maildir_use_size_file an _expandable_ boolean.
1564 Bugzilla 1089. Patch from Heiko Schlittermann.
1566 PP/08 Handle ${run} returning more data than OS pipe buffer size.
1567 Bugzilla 1131. Patch from Holger Weiß.
1569 PP/09 Handle IPv6 addresses with SPF.
1570 Bugzilla 860. Patch from Wolfgang Breyha.
1572 PP/10 GnuTLS: support TLS 1.2 & 1.1.
1574 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
1577 PP/11 match_* no longer expand right-hand-side by default.
1578 New compile-time build option, EXPAND_LISTMATCH_RHS.
1579 New expansion conditions, "inlist", "inlisti".
1581 PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
1583 PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
1585 PP/14 fix log_write() format string regression from TF/03.
1586 Bugzilla 1152. Patch from Dmitry Isaikin.
1592 PP/01 The new ldap_require_cert option would segfault if used. Fixed.
1594 PP/02 Harmonised TLS library version reporting; only show if debugging.
1595 Layout now matches that introduced for other libraries in 4.74 PP/03.
1597 PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
1599 PP/04 New "dns_use_edns0" global option.
1601 PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
1604 PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
1605 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
1607 TK/01 Updated PolarSSL code to 0.14.2.
1608 Bugzilla 1097. Patch from Andreas Metzler.
1610 PP/07 Catch divide-by-zero in ${eval:...}.
1611 Fixes bugzilla 1102.
1613 PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
1616 TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
1617 format-string attack -- SECURITY: remote arbitrary code execution.
1619 TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
1620 time unintentionally subject to list matching rules, letting the header
1621 cause arbitrary Exim lookups (of items which can occur in lists, *not*
1622 arbitrary string expansion). This allowed for information disclosure.
1624 PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
1625 INT_MIN/-1 -- value coerced to INT_MAX.
1631 NM/01 Workaround for PCRE version dependency in version reporting
1634 TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
1635 This fixes portability to compilers other than gcc, notably
1636 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
1638 TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
1639 makefiles for portability to HP-UX and POSIX correctness.
1641 PP/01 Permit LOOKUP_foo enabling on the make command-line.
1642 Also via indented variable definition in the Makefile.
1643 (Debugging by Oliver Heesakkers).
1645 PP/02 Restore caching of spamd results with expanded spamd_address.
1646 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
1648 PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
1649 Improves build reliability. Fix from: Frank Elsner
1651 NM/02 Fix wide character breakage in the rfc2047 coding
1652 Fixes bug 1064. Patch from Andrey N. Oktyabrski
1654 NM/03 Allow underscore in dnslist lookups
1655 Fixes bug 1026. Patch from Graeme Fowler
1657 PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
1658 Code patches from Adam Ciarcinski of NetBSD.
1660 NM/04 Fixed exiqgrep to cope with mailq missing size issue
1663 PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
1664 is logged, to avoid truncation. Patch from John Horne.
1666 PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
1667 Patch from Jakob Hirsch.
1669 PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
1670 SQL string expansion failure details.
1671 Patch from Andrey Oktyabrski.
1673 PP/08 Bugzilla 486: implement %M datestamping in log filenames.
1674 Patch from Simon Arlott.
1676 PP/09 New lookups functionality failed to compile on old gcc which rejects
1677 extern declarations in function scope.
1678 Patch from Oliver Fleischmann
1680 PP/10 Use sig_atomic_t for flags set from signal handlers.
1681 Check getgroups() return and improve debugging.
1682 Fixed developed for diagnosis in bug 927 (which turned out to be
1685 PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
1686 Patch from Mark Zealey.
1688 PP/12 Bugzilla 1056: Improved spamd server selection.
1689 Patch from Mark Zealey.
1691 PP/13 Bugzilla 1086: Deal with maildir quota file races.
1692 Based on patch from Heiko Schlittermann.
1694 PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
1695 Patch from Uwe Doering, sign-off by Michael Haardt.
1697 NM/05 Fix to spam.c to accommodate older gcc versions which dislike
1698 variable declaration deep within a block. Bug and patch from
1701 PP/15 lookups-Makefile IRIX compatibility coercion.
1703 PP/16 Make DISABLE_DKIM build knob functional.
1705 NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
1706 Patch by Simon Arlott
1708 TF/03 Fix valgrind.h portability to C89 compilers that do not support
1709 variable argument macros. Our copy now differs from upstream.
1715 TF/01 Failure to get a lock on a hints database can have serious
1716 consequences so log it to the panic log.
1718 TF/02 Log LMTP confirmation messages in the same way as SMTP,
1719 controlled using the smtp_confirmation log selector.
1721 TF/03 Include the error message when we fail to unlink a spool file.
1723 DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
1724 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
1725 for maintaining out-of-tree patches for some time.
1727 PP/01 Bugzilla 139: Documentation and portability issues.
1728 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
1729 Handle per-OS dynamic-module compilation flags.
1731 PP/02 Let /dev/null have normal permissions.
1732 The 4.73 fixes were a little too stringent and complained about the
1733 permissions on /dev/null. Exempt it from some checks.
1734 Reported by Andreas M. Kirchwitz.
1736 PP/03 Report version information for many libraries, including
1737 Exim version information for dynamically loaded libraries. Created
1738 version.h, now support a version extension string for distributors
1739 who patch heavily. Dynamic module ABI change.
1741 PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
1742 privilege escalation vulnerability whereby the Exim run-time user
1743 can cause root to append content of the attacker's choosing to
1746 PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
1749 PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
1750 If dropping privileges for untrusted macros, we disabled normal logging
1751 on the basis that it would fail; for the Exim run-time user, this is not
1752 the case, and it resulted in successful deliveries going unlogged.
1753 Fixed. Reported by Andreas Metzler.
1759 PP/01 Date: & Message-Id: revert to normally being appended to a message,
1760 only prepend for the Resent-* case. Fixes regression introduced in
1761 Exim 4.70 by NM/22 for Bugzilla 607.
1763 PP/02 Include check_rfc2047_length in configure.default because we're seeing
1764 increasing numbers of administrators be bitten by this.
1766 JJ/01 Added DISABLE_DKIM and comment to src/EDITME
1768 PP/03 Bugzilla 994: added openssl_options main configuration option.
1770 PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
1772 PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
1774 PP/06 Adjust NTLM authentication to handle SASL Initial Response.
1776 PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
1777 without a peer certificate, leading to a segfault because of an
1778 assumption that peers always have certificates. Be a little more
1779 paranoid. Problem reported by Martin Tscholak.
1781 PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
1782 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
1783 NB: ClamAV planning to remove STREAM in "middle of 2010".
1784 CL also introduces -bmalware, various -d+acl logging additions and
1785 more caution in buffer sizes.
1787 PP/09 Implemented reverse_ip expansion operator.
1789 PP/10 Bugzilla 937: provide a "debug" ACL control.
1791 PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
1793 PP/12 Bugzilla 973: Implement --version.
1795 PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
1797 PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
1799 PP/15 Bugzilla 816: support multiple condition rules on Routers.
1801 PP/16 Add bool_lax{} expansion operator and use that for combining multiple
1802 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
1803 ignore trailing whitespace.
1805 JJ/02 prevent non-panic DKIM error from being sent to paniclog
1807 JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
1810 PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
1811 Notification from Dr Andrew Aitchison.
1813 PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
1814 ExtendedDetectionInfo response format.
1815 Notification from John Horne.
1817 PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
1820 PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
1821 XSL and documented dependency on system catalogs, with examples of how
1824 DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
1827 DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
1828 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
1829 configuration file which is writeable by the Exim user or group.
1831 DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
1832 of configuration files to cover files specified with the -C option if
1833 they are going to be used with root privileges, not just the default
1836 DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
1837 option (effectively making it always true).
1839 DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
1840 files to be used while preserving root privileges.
1842 DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
1843 that rogue child processes cannot use them.
1845 PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
1846 run-time user, instead of root.
1848 PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
1849 Exim run-time user without dropping privileges.
1851 DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
1852 result string, instead of calling string_vformat() twice with the same
1855 DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
1856 for other users. Others should always drop root privileges if they use
1857 -C on the command line, even for a whitelisted configure file.
1859 DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
1861 NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
1867 JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
1868 $data_path, and $header_path variables; fixed documentation bugs and
1871 JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
1872 exipick to access non-standard spools, including the "frozen" queue
1875 NM/01 Bugzilla 965: Support mysql stored procedures.
1876 Patch from Alain Williams
1878 NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
1880 NM/03 Bugzilla 955: Documentation fix for max_rcpts.
1881 Patch from Andreas Metzler
1883 NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
1884 Patch from Kirill Miazine
1886 NM/05 Bugzilla 671: Added umask to procmail example.
1888 JJ/03 installed exipick 20100323.0, fixing doc bug
1890 NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
1891 directory. Notification and patch from Dan Rosenberg.
1893 TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
1895 TK/02 Improve log output when DKIM signing operation fails.
1897 MH/01 Treat the transport option dkim_domain as a colon separated
1898 list, not as a single string, and sign the message with each element,
1899 omitting multiple occurences of the same signer.
1901 NM/07 Null terminate DKIM strings, Null initialise DKIM variable
1902 Bugzilla 985, 986. Patch by Simon Arlott
1904 NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
1905 Patch by Simon Arlott
1907 PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
1908 MBX locking. Notification from Dan Rosenberg.
1914 TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
1916 NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
1918 NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
1920 NM/03 Bugzilla 847: Enable DNSDB lookup by default.
1922 NM/04 Bugzilla 915: Flag broken perl installation during build.
1928 TK/01 Added patch by Johannes Berg that expands the main option
1929 "spamd_address" if it starts with a dollar sign.
1931 TK/02 Write list of recipients to X-Envelope-Sender header when building
1932 the mbox-format spool file for content scanning (suggested by Jakob
1935 TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
1936 (http://www.dcc-servers.net/) support via dccifd. Activated by
1937 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
1939 TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
1940 by Mark Daniel Reidel <mr@df.eu>.
1942 NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
1943 When building exim an external PCRE library is now needed -
1944 PCRE is a system library on the majority of modern systems.
1945 See entry on PCRE_LIBS in EDITME file.
1947 NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
1948 conversation. Added nologin parameter to request.
1949 Patch contributed by Kirill Miazine.
1951 TF/01 Do not log submission mode rewrites if they do not change the address.
1953 TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
1955 NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
1956 log files in place. Contributed by Roberto Lima.
1958 NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
1960 TF/03 Bugzilla 615: When checking the local_parts router precondition
1961 after a local_part_suffix or local_part_prefix option, Exim now
1962 does not use the address's named list lookup cache, since this
1963 contains cached lookups for the whole local part.
1965 NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
1966 Robert Millan. Documentation is in experimental-spec.txt.
1968 TF/04 Bugzilla 668: Fix parallel build (make -j).
1970 NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
1972 NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
1973 Patch provided by Jan Srzednicki.
1975 TF/05 Leading white space used to be stripped from $spam_report which
1976 wrecked the formatting. Now it is preserved.
1978 TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
1979 that they are available at delivery time.
1981 TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
1983 TF/08 TLS error reporting now respects the incoming_interface and
1984 incoming_port log selectors.
1986 TF/09 Produce a more useful error message if an SMTP transport's hosts
1987 setting expands to an empty string.
1989 NM/06 Bugzilla 744: EXPN did not work under TLS.
1990 Patch provided by Phil Pennock.
1992 NM/07 Bugzilla 769: Extraneous comma in usage fprintf
1993 Patch provided by Richard Godbee.
1995 NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
1996 acl_smtp_notquit, added index entry.
1998 NM/09 Bugzilla 787: Potential buffer overflow in string_format.
1999 Patch provided by Eugene Bujak.
2001 NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2002 accept(). Patch provided by Maxim Dounin.
2004 NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
2005 Patch provided by Phil Pennock.
2007 NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2009 NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
2010 Patch provided by Brad "anomie" Jorsch.
2012 NM/14 Bugzilla 622: Added timeout setting to transport filter.
2013 Patch provided by Dean Brooks.
2015 TK/05 Add native DKIM support (does not depend on external libraries).
2017 NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
2018 Patch provided by Graeme Fowler.
2020 NM/16 Bugzilla 851: Documentation example syntax fix.
2022 NM/17 Changed NOTICE file to remove references to embedded PCRE.
2024 NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2027 NM/19 Bugzilla 745: TLS version reporting.
2028 Patch provided by Phil Pennock.
2030 NM/20 Bugzilla 167: bool: condition support.
2031 Patch provided by Phil Pennock.
2033 NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2034 clients. Patch provided by Phil Pennock.
2036 NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2037 Patch provided by Brad "anomie" Jorsch.
2039 NM/23 Bugzilla 687: Fix misparses in eximstats.
2040 Patch provided by Heiko Schlittermann.
2042 NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2043 Patch provided by Heiko Schlittermann.
2045 NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
2046 plus update to original patch.
2048 NM/26 Bugzilla 799: Documentation correction for ratelimit.
2050 NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2051 Patch provided by David Brownlee.
2053 NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
2055 NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
2057 NM/30 Bugzilla 888: TLS documentation bugfixes.
2059 NM/31 Bugzilla 896: Dovecot buffer overrun fix.
2061 NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
2062 Unlike the original bugzilla I have changed all shell scripts in src tree.
2064 NM/33 Bugzilla 898: Transport filter timeout fix.
2065 Patch by Todd Rinaldo.
2067 NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
2068 Patch by Serge Demonchaux.
2070 NM/35 Bugzilla 39: Base64 decode bug fixes.
2071 Patch by Jakob Hirsch.
2073 NM/36 Bugzilla 909: Correct connect() call in dcc code.
2075 NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
2077 NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
2079 NM/39 Bugzilla 911: Fixed MakeLinks build script.
2085 TK/01 Add preliminary DKIM support. Currently requires a forked version of
2086 ALT-N's libdkim that I have put here:
2087 http://duncanthrax.net/exim-experimental/
2089 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2090 were called 'true' and it seems that C99 defines that as a reserved
2091 keyword to be used with 'bool' variable types. That means you could
2092 not include C99-style headers which use bools without triggering
2093 build errors in sieve.c.
2095 NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2096 as mailq or other aliases. Changed the --help handling significantly
2097 to do whats expected. exim_usage() emits usage/help information.
2099 SC/01 Added the -bylocaldomain option to eximstats.
2101 NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
2103 NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
2105 NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
2111 PH/01 Another patch from the Sieve maintainer.
2113 PH/02 When an IPv6 address is converted to a string for single-key lookup
2114 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2115 dots are used instead of colons so that keys in lsearch files need not
2116 contain colons. This was done some time before quoting was made available
2117 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2118 (notated using the quote facility) so as to distinguish them from IPv4
2119 keys. This meant that lookups for IP addresses in host lists did not work
2120 for iplsearch lookups.
2122 This has been fixed by arranging for IPv6 addresses to be expressed with
2123 colons if the lookup type is iplsearch. This is not incompatible, because
2124 previously such lookups could never work.
2126 The situation is now rather anomalous, since one *can* have colons in
2127 ordinary lsearch keys. However, making the change in all cases is
2128 incompatible and would probably break a number of configurations.
2130 TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2133 MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2134 conversion specification without a maximum field width, thereby enabling
2135 a rogue spamd server to cause a buffer overflow. While nobody in their
2136 right mind would setup Exim to query an untrusted spamd server, an
2137 attacker that gains access to a server running spamd could potentially
2138 exploit this vulnerability to run arbitrary code as the Exim user.
2140 TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2141 $primary_hostname instead of what libspf2 thinks the hosts name is.
2143 MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2144 a directory entry by the name of the lookup key. Previously, if a
2145 symlink pointed to a non-existing file or a file in a directory that
2146 Exim lacked permissions to read, a lookup for a key matching that
2147 symlink would fail. Now it is enough that a matching directory entry
2148 exists, symlink or not. (Bugzilla 503.)
2150 PH/03 The body_linecount and body_zerocount variables are now exported in the
2153 PH/04 Added the $dnslist_matched variable.
2155 PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2156 This means they are set thereafter only if the connection becomes
2159 PH/06 Added the client_condition to authenticators so that some can be skipped
2160 by clients under certain conditions.
2162 PH/07 The error message for a badly-placed control=no_multiline_responses left
2163 "_responses" off the end of the name.
2165 PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2167 PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2168 (without spaces) instead of just copying the configuration text.
2170 PH/10 Added the /noupdate option to the ratelimit ACL condition.
2172 PH/11 Added $max_received_linelength.
2174 PH/12 Added +ignore_defer and +include_defer to host lists.
2176 PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2177 way in which PCRE > 7.0 is built.
2179 PH/14 Implemented queue_only_load_latch.
2181 PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2182 MAIL command. The effect was to mangle the value on 64-bit systems.
2184 PH/16 Another patch from the Sieve maintainer.
2186 PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2188 PH/18 If a system quota error occurred while trying to create the file for
2189 a maildir delivery, the message "Mailbox is full" was not appended to the
2190 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2191 only to a quota excession during the actual writing of the file.
2193 PH/19 It seems that peer DN values may contain newlines (and other non-printing
2194 characters?) which causes problems in log lines. The DN values are now
2195 passed through string_printing() before being added to log lines.
2197 PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
2198 and InterBase are left for another time.)
2200 PH/21 Added message_body_newlines option.
2202 PH/22 Guard against possible overflow in moan_check_errorcopy().
2204 PH/23 POSIX allows open() to be a macro; guard against that.
2206 PH/24 If the recipient of an error message contained an @ in the local part
2207 (suitably quoted, of course), incorrect values were put in $domain and
2208 $local_part during the evaluation of errors_copy.
2214 MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2215 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2218 PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2219 issue a MAIL command.
2221 PH/02 In an ACL statement such as
2223 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2225 if a client was not listed at all, or was listed with a value other than
2226 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2227 the condition was not true (as it should be), so access was not denied.
2228 The bug was that the ! inversion was incorrectly passed on to the second
2229 item. This has been fixed.
2231 PH/03 Added additional dnslists conditions == and =& which are different from
2232 = and & when the dns lookup returns more than one IP address.
2234 PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2235 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2237 PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2238 FSYNC, which compiles an option called disable_fsync that allows for
2239 bypassing fsync(). The documentation is heavily laced with warnings.
2241 SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2243 PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2244 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2245 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2246 including adding "make clean"; (3) Added -fPIC when compiling the test
2247 dynamically loaded module, to get rid of a warning.
2249 MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2250 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2251 = 0s. The bug is otherwise harmless.
2253 PH/07 There was a bug in the dovecot authenticator such that the value of
2254 $auth1 could be overwritten, and so not correctly preserved, after a
2255 successful authentication. This usually meant that the value preserved by
2256 the server_setid option was incorrect.
2258 PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2260 PH/09 Installed PCRE release 7.0.
2262 PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2263 run for batched SMTP input. It is now run at the start of every message
2264 in the batch. While fixing this I discovered that the process information
2265 (output by running exiwhat) was not always getting set for -bs and -bS
2266 input. This is fixed, and it now also says "batched" for BSMTP.
2268 PH/11 Added control=no_pipelining.
2270 PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2271 patch, slightly modified), and move the expansion of helo_data till after
2272 the connection is made in the smtp transport (so it can use these
2275 PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2277 PH/14 Added log_selector = +pid.
2279 PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2281 PH/16 Add ${if forany and ${if forall.
2283 PH/17 Added dsn_from option to vary the From: line in DSNs.
2285 PH/18 Flush SMTP output before performing a callout, unless control =
2286 no_callout_flush is set.
2288 PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2289 was true (the default) a successful delivery failed to delete the retry
2290 item, thus causing premature timeout of the address. The bug is now
2293 PH/20 Added hosts_avoid_pipelining to the smtp transport.
2295 PH/21 Long custom messages for fakedefer and fakereject are now split up
2296 into multiline responses in the same way that messages for "deny" and
2297 other ACL rejections are.
2299 PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2300 with slight modification.
2302 PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2303 draft, changing the syntax and factoring some duplicate code".
2305 PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2306 for deliveries of the second and subsequent messages over the same SMTP
2309 PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2310 ${reduce, with only minor "tidies".
2312 SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2314 PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
2315 expansion side effects.
2317 PH/27 When a message times out after an over-quota error from an Exim-imposed
2318 quota, the bounce message says "mailbox is full". This message was not
2319 being given when it was a system quota that was exceeded. It now should
2322 MH/03 Made $recipients available in local_scan(). local_scan() already has
2323 better access to the recipient list through recipients_list[], but
2324 $recipients can be useful in postmaster-provided expansion strings.
2326 PH/28 The $smtp_command and $smtp_command_argument variables were not correct
2327 in the case of a MAIL command with additional options following the
2328 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
2329 were accidentally chopped off.
2331 PH/29 SMTP synchronization checks are implemented when a command is read -
2332 there is a check that no more input is waiting when there shouldn't be
2333 any. However, for some commands, a delay in an ACL can mean that it is
2334 some time before the response is written. In this time, more input might
2335 arrive, invalidly. So now there are extra checks after an ACL has run for
2336 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
2337 pipelining has not been advertised.
2339 PH/30 MH's patch to allow iscntrl() characters to be list separators.
2341 PH/31 Unlike :fail:, a custom message specified with :defer: was not being
2342 returned in the SMTP response when smtp_return_error_details was false.
2343 This has been fixed.
2345 PH/32 Change the Dovecot authenticator to use read() and write() on the socket
2346 instead of the C I/O that was originally supplied, because problems were
2347 reported on Solaris.
2349 PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
2350 Exim which did not show up earlier: it was assuming that a call to
2351 SSL_CTX_set_info_callback() might give an error value. In fact, there is
2352 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
2353 was a macro that became an assignment, so it seemed to work. This has
2354 changed to a proper function call with a void return, hence the compile
2355 error. Exim's code has been fixed.
2357 PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
2360 PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
2362 PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
2364 PH/37 If a message is not accepted after it has had an id assigned (e.g.
2365 because it turns out to be too big or there is a timeout) there is no
2366 "Completed" line in the log. When some messages of this type were
2367 selected by exigrep, they were listed as "not completed". Others were
2368 picked up by some special patterns. I have improved the selection
2369 criteria to be more general.
2371 PH/38 The host_find_failed option in the manualroute router can now be set
2372 to "ignore", to completely ignore a host whose IP address cannot be
2373 found. If all hosts are ignored, the behaviour is controlled by the new
2374 host_all_ignored option.
2376 PH/39 In a list of hosts for manualroute, if one item (either because of multi-
2377 homing or because of multiple MX records with /mx) generated more than
2378 one IP address, and the following item turned out to be the local host,
2379 all the secondary addresses of the first item were incorrectly removed
2380 from the list, along with the local host and any following hosts (which
2381 is what is supposed to happen).
2383 PH/40 When Exim receives a message, it writes the login name, uid, and gid of
2384 whoever called Exim into the -H file. In the case of the daemon it was
2385 behaving confusingly. When first started, it used values for whoever
2386 started the daemon, but after a SIGHUP it used the Exim user (because it
2387 calls itself on a restart). I have changed the code so that it now always
2390 PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
2391 message are rejected with the same error (e.g. no authentication or bad
2392 sender address), and a DATA command is nevertheless sent (as can happen
2393 with PIPELINING or a stupid MUA), the error message that was given to the
2394 RCPT commands is included in the rejection of the DATA command. This is
2395 intended to be helpful for MUAs that show only the final error to their
2398 PH/42 Another patch from the Sieve maintainer.
2400 SC/02 Eximstats - Differentiate between permanent and temporary rejects.
2401 Eximstats - Fixed some broken HTML links and added missing column headers
2403 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
2404 columns for Rejects, Temp Rejects, Ham, and Spam rows.
2406 SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
2408 PH/43 Yet another patch from the Sieve maintainer.
2410 PH/44 I found a way to check for a TCP/IP connection going away before sending
2411 the response to the final '.' that terminates a message, but only in the
2412 case where the client has not sent further data following the '.'
2413 (unfortunately, this is allowed). However, in many cases there won't be
2414 any further data because there won't be any more messages to send. A call
2415 to select() can be used: if it shows that the input is "ready", there is
2416 either input waiting, or the socket has been closed. An attempt to read
2417 the next input character can distinguish the two cases. Previously, Exim
2418 would have sent an OK response which the client would never have see.
2419 This could lead to message repetition. This fix should cure that, at
2420 least in a lot of common cases.
2422 PH/45 Do not advertise STARTTLS in response to HELP unless it would be
2423 advertised in response to EHLO.
2429 PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
2430 fixed by 4.65/MH/01 (is this a record?) are fixed:
2432 (i) An empty string was always treated as zero by the numeric comparison
2433 operators. This behaviour has been restored.
2435 (ii) It is documented that the numeric comparison operators always treat
2436 their arguments as decimal numbers. This was broken in that numbers
2437 starting with 0 were being interpreted as octal.
2439 While fixing these problems I realized that there was another issue that
2440 hadn't been noticed. Values of message_size_limit (both the global option
2441 and the transport option) were treated as octal if they started with 0.
2442 The documentation was vague. These values are now always treated as
2443 decimal, and I will make that clear in the documentation.
2449 TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
2450 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
2453 MH/01 Don't check that the operands of numeric comparison operators are
2454 integers when their expansion is in "skipping" mode (fixes bug
2455 introduced by 4.64-PH/07).
2457 PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
2458 child addresses, Exim now panics and dies. Previously, because the count
2459 is held in a short int, deliveries were likely to be lost. As such a
2460 large number of recipients for a single message is ridiculous
2461 (performance will be very, very poor), I have chosen to impose a limit
2462 rather than extend the field.
2468 TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
2469 leftover -K file (the existence of which was triggered by #402).
2470 While we were at it, introduced process PID as part of the -K
2471 filename. This should rule out race conditions when creating
2474 TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
2475 processing considerably. Previous code took too long for large mails,
2476 triggering a timeout which in turn triggers #401.
2478 TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
2479 in the DK code in transports.c. sendfile() is not really portable,
2480 hence the _LINUX specificness.
2482 TF/01 In the add_headers option to the mail command in an Exim filter,
2483 there was a bug that Exim would claim a syntax error in any
2484 header after the first one which had an odd number of characters
2487 PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
2488 callout verification, Exim cached a "reject" for the entire domain. This
2489 is correct for most verifications, but it is not correct for a recipient
2490 verification with use_sender or use_postmaster set, because in that case
2491 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
2492 case of MAIL FROM:<> rejection from other early rejections (e.g.
2493 rejection of HELO). When verifying a recipient using a non-null MAIL
2494 address, the cache is ignored if it shows MAIL FROM:<> rejection.
2495 Whatever the result of the callout, the value of the domain cache is
2496 left unchanged (for any other kind of callout, getting as far as trying
2497 RCPT means that the domain itself is ok).
2499 PH/02 Tidied a number of unused variable and signed/unsigned warnings that
2502 PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
2503 manifest itself as EPIPE rather than ECONNECT. When tidying away a
2504 session, the daemon ignores ECONNECT errors and logs others; it now
2505 ignores EPIPE as well.
2507 PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
2508 (quoted-printable decoding).
2510 PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
2511 later the small subsequent patch to fix an introduced bug.
2513 PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
2515 PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
2517 PH/08 An error is now given if message_size_limit is specified negative.
2519 PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
2520 to be given (somewhat) arbitrary names.
2522 JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
2525 JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
2526 miscellaneous code fixes
2528 PH/10 Added the log_reject_target ACL modifier to specify where to log
2531 PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
2532 hostname. This is wrong, because it relates to the incoming message (and
2533 probably the interface on which it is arriving) and not to the outgoing
2534 callout (which could be using a different interface). This has been
2535 changed to use the value of the helo_data option from the smtp transport
2536 instead - this is what is used when a message is actually being sent. If
2537 there is no remote transport (possible with a router that sets up host
2538 addresses), $smtp_active_hostname is used.
2540 PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
2541 tweaks were necessary in order to get it to work (see also 21 below):
2542 (a) The code assumed that strncpy() returns a negative number on buffer
2543 overflow, which isn't the case. Replaced with Exim's string_format()
2545 (b) There were several signed/unsigned issues. I just did the minimum
2546 hacking in of casts. There is scope for a larger refactoring.
2547 (c) The code used strcasecmp() which is not a standard C function.
2548 Replaced with Exim's strcmpic() function.
2549 (d) The code set only $1; it now sets $auth1 as well.
2550 (e) A simple test gave the error "authentication client didn't specify
2551 service in request". It would seem that Dovecot has changed its
2552 interface. Fortunately there's a specification; I followed it and
2553 changed what the client sends and it appears to be working now.
2555 PH/13 Added $message_headers_raw to provide the headers without RFC 2047
2558 PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
2559 address A is aliased to B and C, where B exists and C does not. Without
2560 -v the output is "A verified" because verification stops after a
2561 successful redirection if more than one address is generated. However,
2562 with -v the child addresses are also verified. Exim was outputting "A
2563 failed to verify" and then showing the successful verification for C,
2564 with its parentage. It now outputs "B failed to verify", showing B's
2565 parentage before showing the successful verification of C.
2567 PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
2568 look up a TXT record in a specific list after matching in a combined
2571 PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
2572 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
2573 they consult the DNS. I had assumed they would set it the way they
2574 wanted; and indeed my experiments on Linux seem to show that in some
2575 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
2576 To be on the safe side, however, I have now made the interface to
2577 host_find_byname() similar to host_find_bydns(), with an argument
2578 containing the DNS resolver options. The host_find_byname() function now
2579 sets these options at its start, just as host_find_bydns() does. The smtp
2580 transport options dns_qualify_single and dns_search_parents are passed to
2581 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
2582 of host_find_byname() use the default settings of RES_DEFNAMES
2583 (qualify_single) but not RES_DNSRCH (search_parents).
2585 PH/17 Applied (a modified version of) Nico Erfurth's patch to make
2586 spool_read_header() do less string testing, by means of a preliminary
2587 switch on the second character of optional "-foo" lines. (This is
2588 overdue, caused by the large number of possibilities that now exist.
2589 Originally there were few.) While I was there, I also converted the
2590 str(n)cmp tests so they don't re-test the leading "-" and the first
2591 character, in the hope this might squeeze out yet more improvement.
2593 PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
2594 flag allowing group syntax was set by the header_syntax check but not
2595 turned off, possible causing trouble later; (2) The flag was not being
2596 set at all for the header_verify test, causing "group"-style headers to
2597 be rejected. I have now set it in this case, and also caused header_
2598 verify to ignore an empty address taken from a group. While doing this, I
2599 came across some other cases where the code for allowing group syntax
2600 while scanning a header line wasn't quite right (mostly, not resetting
2601 the flag correctly in the right place). These bugs could have caused
2602 trouble for malformed header lines. I hope it is now all correct.
2604 PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
2605 with the "reply" argument non-NULL. The code, however (which originally
2606 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
2607 but it didn't always do it. This confused somebody who was copying the
2608 code for some other use. I have removed all the tests.
2610 PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
2611 feature that was used to support insecure browsers during the U.S. crypto
2612 embargo. It requires special client support, and Exim is probably the
2613 only MTA that supported it -- and would never use it because real RSA is
2614 always available. This code has been removed, because it had the bad
2615 effect of slowing Exim down by computing (never used) parameters for the
2616 RSA_EXPORT functionality.
2618 PH/21 On the advice of Timo Sirainen, added a check to the dovecot
2619 authenticator to fail if there's a tab character in the incoming data
2620 (there should never be unless someone is messing about, as it's supposed
2621 to be base64-encoded). Also added, on Timo's advice, the "secured" option
2622 if the connection is using TLS or if the remote IP is the same as the
2623 local IP, and the "valid-client-cert option" if a client certificate has
2626 PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
2627 authenticators. This can be used for authorization after authentication
2628 succeeds. (In the case of plaintext, it servers for both authentication
2631 PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
2632 if any retry times were supplied.
2634 PH/24 Exim crashed if verify=helo was activated during an incoming -bs
2635 connection, where there is no client IP address to check. In this
2636 situation, the verify now always succeeds.
2638 PH/25 Applied John Jetmore's -Mset patch.
2640 PH/26 Added -bem to be like -Mset, but loading a message from a file.
2642 PH/27 In a string expansion for a processed (not raw) header when multiple
2643 headers of the same name were present, leading whitespace was being
2644 removed from all of them, but trailing whitespace was being removed only
2645 from the last one. Now trailing whitespace is removed from each header
2646 before concatenation. Completely empty headers in a concatenation (as
2647 before) are ignored.
2649 PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
2650 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
2652 PH/29 [Removed. This was a change that I later backed out, and forgot to
2653 correct the ChangeLog entry (that I had efficiently created) before
2654 committing the later change.]
2656 PH/30 Exim was sometimes attempting to deliver messages that had suffered
2657 address errors (4xx response to RCPT) over the same connection as other
2658 messages routed to the same hosts. Such deliveries are always "forced",
2659 so retry times are not inspected. This resulted in far too many retries
2660 for the affected addresses. The effect occurred only when there were more
2661 hosts than the hosts_max_try setting in the smtp transport when it had
2662 the 4xx errors. Those hosts that it had tried were not added to the list
2663 of hosts for which the message was waiting, so if all were tried, there
2664 was no problem. Two fixes have been applied:
2666 (i) If there are any address or message errors in an SMTP delivery, none
2667 of the hosts (tried or untried) are now added to the list of hosts
2668 for which the message is waiting, so the message should not be a
2669 candidate for sending over the same connection that was used for a
2670 successful delivery of some other message. This seems entirely
2671 reasonable: after all the message is NOT "waiting for some host".
2672 This is so "obvious" that I'm not sure why it wasn't done
2673 previously. Hope I haven't missed anything, but it can't do any
2674 harm, as the worst effect is to miss an optimization.
2676 (ii) If, despite (i), such a delivery is accidentally attempted, the
2677 routing retry time is respected, so at least it doesn't keep
2678 hammering the server.
2680 PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
2681 in ${readsocket because some servers need this prod.
2683 PH/32 Added some extra debug output when updating a wait-xxx database.
2685 PH/33 The hint "could be header name not terminated by colon", which has been
2686 given for certain expansion errors for a long time, was not being given
2687 for the ${if def:h_colon_omitted{... case.
2689 PH/34 The spec says: "With one important exception, whenever a domain list is
2690 being scanned, $domain contains the subject domain." There was at least
2691 one case where this was not true.
2693 PH/35 The error "getsockname() failed: connection reset by peer" was being
2694 written to the panic log as well as the main log, but it isn't really
2695 panic-worthy as it just means the connection died rather early on. I have
2696 removed the panic log writing for the ECONNRESET error when getsockname()
2699 PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
2700 runs only) independently of the message's sender address. This meant
2701 that, if the 4xx error was in fact related to the sender, a different
2702 message to the same recipient with a different sender could confuse
2703 things. In particular, this can happen when sending to a greylisting
2704 server, but other circumstances could also provoke similar problems.
2705 I have changed the default so that the retry time for these errors is now
2706 based a combination of the sender and recipient addresses. This change
2707 can be overridden by setting address_retry_include_sender=false in the
2710 PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
2711 remote server are returned as part of bounce messages. This was not
2712 happening for LMTP over a pipe (the lmtp transport), but now it is the
2713 same for both kinds of LMTP.
2715 PH/38 Despite being documented as not happening, Exim was rewriting addresses
2716 in header lines that were in fact CNAMEs. This is no longer the case.
2718 PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
2719 and queue runs started by the daemon processed all messages. This has
2720 been fixed so that -R and -S can now usefully be given with -q<time>.
2722 PH/40 Import PCRE release 6.7 (fixes some bugs).
2724 PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
2726 PH/42 Give an error if -q is specified more than once.
2728 PH/43 Renamed the variables $interface_address and $interface_port as
2729 $received_ip_address and $received_port, to make it clear that these
2730 values apply to message reception, and not to the outgoing interface when
2731 a message is delivered. (The old names remain recognized, of course.)
2733 PH/44 There was no timeout on the connect() call when using a Unix domain
2734 socket in the ${readsocket expansion. There now is.
2736 PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
2737 be meaningful with "accept".
2739 SC/01 Eximstats V1.43
2740 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
2742 SC/02 Eximstats V1.44
2743 Use a glob alias rather than an array ref in the generated
2744 parser. This improves both readability and performance.
2746 SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
2747 Collect SpamAssassin and rejection statistics.
2748 Don't display local sender or destination tables unless
2749 there is data to show.
2750 Added average volumes into the top table text output.
2752 SC/04 Eximstats V1.46
2753 Collect data on the number of addresses (recipients)
2754 as well as the number of messages.
2756 SC/05 Eximstats V1.47
2757 Added 'Message too big' to the list of mail rejection
2758 reasons (thanks to Marco Gaiarin).
2760 SC/06 Eximstats V1.48
2761 Mainlog lines which have GMT offsets and are too short to
2762 have a flag are now skipped.
2764 SC/07 Eximstats V1.49 (Alain Williams)
2765 Added the -emptyok flag.
2767 SC/08 Eximstats V1.50
2768 Fixes for obtaining the IP address from reject messages.
2770 JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
2771 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
2772 whitespace changes from 4.64-PH/27
2774 JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
2777 JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
2778 are found, allow negative numbers in numeric criteria)
2780 JJ/06 exipick.20061117.2, added new $message_body_missing variable
2782 JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
2783 to match changes made in 4.64-PH/43
2785 PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
2787 PH/47 Put in an explicit test for a DNS lookup of an address record where the
2788 "domain" is actually an IP address, and force a failure. This locks out
2789 those revolvers/nameservers that support "A-for-A" lookups, in
2790 contravention of the specifications.
2792 PH/48 When a host name was looked up from an IP address, and the subsequent
2793 forward lookup of the name timed out, the host name was left in
2794 $sender_host_name, contrary to the specification.
2796 PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
2797 restricted to single-key lookups, Exim was not diagnosing an error if
2798 * or *@ was used with a query-style lookup.
2800 PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
2802 MH/01 local_scan ABI version incremented to 1.1. It should have been updated
2803 long ago, but noone interested enough thought of it. Let's just say that
2804 the "1.1" means that there are some new functions that weren't there at
2805 some point in the past.
2807 PH/51 Error processing for expansion failure of helo_data from an smtp
2808 transport during callout processing was broken.
2810 PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
2811 tested/used via the -bh/-bhc/-bs options.
2813 PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
2814 bug, fixed in subsequent PCRE releases).
2816 PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
2817 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
2819 PH/55 Check for a ridiculously long file name in exim_dbmbuild.
2825 SC/01 Use a glob alias rather than an array ref in eximstats generated
2826 parser. This improves both readability and performance.
2828 SC/02 Collect SpamAssassin and rejection statistics in eximstats.
2829 Don't display local sender or destination tables in eximstats unless
2830 there is data to show.
2831 Added average volumes into the eximstats top table text output.
2833 SC/03 Collect data on the number of addresses (recipients) as well
2834 as the number of messages in eximstats.
2836 TF/01 Correct an error in the documentation for the redirect router. Exim
2837 does (usually) call initgroups() when daemonizing.
2839 TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
2840 with consistent privilege compared to when running as a daemon.
2842 TF/03 Note in the spec that $authenticated_id is not set for local
2843 submissions from trusted users.
2845 TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
2846 Thanks to Dean Brooks <dean@iglou.com> for the patch.
2848 TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
2849 by adding some example configuration directives to the default
2850 configuration file. A little bit of work is required to uncomment the
2851 directives and define how usernames and passwords are checked, but
2852 there is now a framework to start from.
2854 PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
2855 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
2856 without this. I don't know how relevant this is to other LDAP libraries.
2858 PH/02 Add the verb name to the "unknown ACL verb" error.
2860 PH/03 Magnus Holmgren's patch for filter_prepend_home.
2862 PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
2864 PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
2865 directory not expanded when it should be if an expanded home directory
2866 was set for the address (which is overridden by the transport).
2868 PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
2871 PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
2872 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
2873 because it is too late at that time, and has no effect.
2875 PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
2876 security issue with \' (bugzilla #107). I could not use the
2877 PQescapeStringConn() function, because it needs a PGconn value as one of
2880 PH/08 When testing addresses using -bt, indicate those final addresses that
2881 are duplicates that would not cause an additional delivery. At least one
2882 person was confused, thinking that -bt output corresponded to deliveries.
2883 (Suppressing duplicates isn't a good idea as you lose the information
2884 about possibly different redirections that led to the duplicates.)
2886 PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
2887 systems where poll() doesn't work, in particular OS X.
2889 PH/10 Added more information to debugging output for retry time not reached.
2891 PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
2892 operations in malware.c.
2894 PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
2897 PH/13 If write_rejectlog was set false when logging was sent to syslog with
2898 syslog_duplication set false, log lines that would normally be written
2899 both the the main log and to the reject log were not written to syslog at
2902 PH/14 In the default configuration, change the use of "message" in ACL warn
2903 statements to "add_header".
2905 PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
2906 not followed by a command (e.g. "seen endif").
2908 PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
2909 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
2912 PH/17 Added extra conditions to the default value of delay_warning_condition
2916 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
2917 { match{$h_precedence:}{(?i)bulk|list|junk} } \
2918 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
2921 The Auto-Submitted: and various List- headers are standardised, whereas I
2922 don't think Precedence: ever was.
2924 PH/18 Refactored debugging code in route_finduser() to show more information,
2925 in particular, the error code if getpwnam() issues one.
2927 PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
2928 This is apparently needed in addition to the PH/07 change above to avoid
2929 any possible encoding problems.
2931 PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
2932 but not after initializing Perl.
2934 PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
2935 output them only if debugging. By default they are written stderr,
2936 apparently, which is not desirable.
2938 PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
2941 JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
2944 JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
2946 PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
2947 authenticated or an ident call has been made. Suppress the default
2948 values for $authenticated_id and $authenticated_sender (but permit -oMai
2949 and -oMas) when testing with -bh.
2951 PH/24 Re-jigged the order of the tests in the default configuration so that the
2952 tests for valid domains and recipients precede the DNS black list and CSA
2953 tests, on the grounds that those ones are more expensive.
2955 PH/25 Exim was not testing for a space following SMTP commands such as EHLO
2956 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
2957 This bug exists in every version of Exim that I still have, right back to
2960 PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
2961 However, an attempt to turn on case-sensitivity in a regex key by
2962 including (?-i) didn't work because the subject string was already
2963 lowercased, and the effects were non-intuitive. It turns out that a
2964 one-line patch can be used to allow (?-i) to work as expected.
2970 TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
2971 other effects) broke the use of negated acl sub-conditions.
2973 PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
2976 PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
2977 "Deny" causes Exim to reject the incoming connection with a 554 error.
2978 Unfortunately, if there is a major crisis, such as a disk failure,
2979 tcp-wrappers gives "deny", whereas what one would like would be some
2980 kind of temporary error. A kludge has been added to help with this.
2981 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
2982 554 error is used if errno is still zero or contains ENOENT (which occurs
2983 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
2986 PH/03 Add -lutil to the default FreeBSD LIBS setting.
2988 PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
2989 errors. Otherwise a message that provokes a temporary error (when other
2990 messages do not) can cause a whole host to time out.
2992 PH/05 Batch deliveries by appendfile and pipe transports did not work when the
2993 addresses were routed directly to files or pipes from a redirect router.
2994 File deliveries just didn't batch; pipe deliveries might have suffered
2997 PH/06 A failure to get a lock for a hints database would erroneously always say
2998 "Failed to get write lock", even when it was really a read lock.
3000 PH/07 The appendfile transport was creating MBX lock files with a fixed mode
3001 of 0600. This has been changed to use the value of the lockfile_mode
3002 option (which defaults to 0600).
3004 PH/08 Applied small patch from the Sieve maintainer.
3006 PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
3007 folder from quota calculations, a direct delivery into this folder messed
3008 up the contents of the maildirsize file. This was because the regex was
3009 used only to exclude .Trash (or whatever) when the size of the mailbox
3010 was calculated. There was no check that a delivery was happening into an
3011 excluded directory. This bug has been fixed by ignoring all quota
3012 processing for deliveries into excluded directories.
3014 PH/10 Added the maildirfolder_create_regex option to appendfile.
3020 PH/01 The code for finding all the local interface addresses on a FreeBSD
3021 system running IPv6 was broken. This may well have applied to all BSD
3022 systems, as well as to others that have similar system calls. The broken
3023 code found IPv4 interfaces correctly, but gave incorrect values for the
3024 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
3025 that it would not match correctly against @[] and not recognize the IPv6
3028 PH/02 The ipliteral router was not recognizing addresses of the form user@
3029 [ipv6:....] because it didn't know about the "ipv6:" prefix.
3031 PH/03 Added disable_ipv6.
3033 PH/04 Changed $reply_address to use the raw form of the headers instead of the
3034 decoded form, because it is most often used to construct To: headers
3035 lines in autoreplies, and the decoded form may well be syntactically
3036 invalid. However, $reply_address has leading white space removed, and all
3037 newlines turned into spaces so that the autoreply transport does not
3040 PH/05 If group was specified without a user on a router, and no group or user
3041 was specified on a transport, the group from the router was ignored.
3043 PH/06 Increased the number of ACL variables to 20 of each type, and arranged
3044 for visible compile-time settings that can be used to change these
3045 numbers, for those that want even more. Backwards compatibility with old
3046 spool files has been maintained. However, going back to a previous Exim
3047 release will lost any variables that are in spool files.
3049 PH/07 Two small changes when running in the test harness: increase delay when
3050 passing a TCP/IP connection to a new process, in case the original
3051 process has to generate a bounce, and remove special handling of
3052 127.0.0.2 (sic), which is no longer necessary.
3054 PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
3055 be the same on different OS.
3057 PH/09 Moved a debug statement in filter processing to avoid a race problem when
3060 JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
3061 whether --show-vars was specified or not
3063 JJ/02 exipick: Added support for new ACL variable spool format introduced
3066 PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
3067 syntactically invalid From: or Reply-to: line, and a filter used this to
3068 generate an autoreply, and therefore failed to obtain an address for the
3069 autoreply, Exim could try to deliver to a non-existent relative file
3070 name, causing unrelated and misleading errors. What now happens is that
3071 it logs this as a hard delivery error, but does not attempt to create a
3074 PH/11 The exinext utility has a -C option for testing purposes, but although
3075 the given file was scanned by exinext itself; it wasn't being passed on
3076 when Exim was called.
3078 PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
3079 an end-of-file indication when reading a command response.
3081 PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
3082 compiled. In many other places in Exim, IPv6 addresses are always
3083 recognized, so I have changed this. It also means that IPv4 domain
3084 literals of the form [IPV4:n.n.n.n] are now always recognized.
3086 PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
3087 used if the router is not running as root, for example, when verifying at
3088 ACL time, or when using -bh. The debugging output from this situation was
3089 non-existent - all you got was a failure to exec. I have made two
3092 (a) Failures to set uid/gid, the current directory, or a process leader
3093 in a subprocess such as that created by queryprogram now generate
3094 suitable debugging output when -d is set.
3096 (b) The queryprogram router detects when it is not running as root,
3097 outputs suitable debugging information if -d is set, and then runs
3098 the subprocess without attempting to change uid/gid.
3100 PH/15 Minor change to Makefile for building test_host (undocumented testing
3103 PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
3104 additional section of a DNS packet that returns MX or SRV records.
3105 Instead, it always explicitly searches for A/AAAA records. This avoids
3106 major problems that occur when a DNS server includes only records of one
3107 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
3108 fixed another bug: if SRV records were looked up and the corresponding
3109 address records were *not* found in the additional section, the port
3110 values from the SRV records were lost.
3112 PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
3113 using the correct key (the original address) when searching the retry
3114 rules in order to find which one to use for generating the retry hint.
3116 PH/18 If quota_warn_message contains a From: header, Exim now refrains from
3117 adding the default one. Similarly, if it contains a Reply-To: header, the
3118 errors_reply_to option, if set, is not used.
3120 PH/19 When calculating a retry time, Exim used to measure the "time since
3121 failure" by looking at the "first failed" field in the retry record. Now
3122 it does not use this if it is later than than the arrival time of the
3123 message. Instead it uses the arrival time. This makes for better
3124 behaviour in cases where some deliveries succeed, thus re-setting the
3125 "first failed" field. An example is a quota failure for a huge message
3126 when small messages continue to be delivered. Without this change, the
3127 "time since failure" will always be short, possible causing more frequent
3128 delivery attempts for the huge message than are intended.
3129 [Note: This change was subsequently modified - see PH/04 for 4.62.]
3131 PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
3132 $1, $2, $3) because the numerical variables can be reset during some
3133 expansion items (e.g. "match"), thereby losing the authentication data.
3135 PH/21 Make -bV show the size of off_t variables so that the test suite can
3136 decide whether to run tests for quotas > 2G.
3138 PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
3139 mailbox_size, and mailbox_filecount in the appendfile transport. If a
3140 filecount value is greater than 2G or if a quota value is greater than 2G
3141 on a system where the size of off_t is not greater than 4, a panic error
3144 PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
3145 never match. The debug and -bh output now contains an explicit error
3146 message indicating a malformed IPv4 address or mask.
3148 PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
3149 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
3150 PH/23 above applies.
3152 PH/25 Do not write to syslog when running in the test harness. The only
3153 occasion when this arises is a failure to open the main or panic logs
3154 (for which there is an explicit test).
3156 PH/26 Added the /no_tell option to "control=freeze".
3158 PH/27 If a host name lookup failed very early in a connection, for example, if
3159 the IP address matched host_lookup and the reverse lookup yielded a name
3160 that did not have a forward lookup, an error message of the form "no IP
3161 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
3162 could be logged. Now it outputs the IP address instead of "NULL".
3164 PH/28 An enabling patch from MH: add new function child_open_exim2() which
3165 allows the sender and the authenticated sender to be set when
3166 submitting a message from within Exim. Since child_open_exim() is
3167 documented for local_scan(), the new function should be too.
3169 PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
3170 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
3171 results in an empty string is now treated as unset.
3173 PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
3175 PH/31 Added sender_verify_fail logging option.
3177 PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
3178 needed by RFC 822 but not by RFC 2822 was commented out. I have now
3179 tidied the source and removed it altogether.
3181 PH/33 When a queue run was abandoned because the load average was too high, a
3182 log line was always written; now it is written only if the queue_run log
3183 selector is set. In addition, the log line for abandonment now contains
3184 information about the queue run such as the pid. This is always present
3185 in "start" and "stop" lines but was omitted from the "abandon" line.
3187 PH/34 Omit spaces between a header name and the colon in the error message that
3188 is given when verify = headers_syntax fails (if there are lots of them,
3189 the message gets confusing).
3191 PH/35 Change the default for dns_check_names_pattern to allow slashes within
3192 names, as there are now some PTR records that contain slashes. This check
3193 is only to protect against broken name servers that fall over on strange
3194 characters, so the fact that it applies to all lookups doesn't matter.
3196 PH/36 Now that the new test suite is complete, we can remove some of the
3197 special code in Exim that was needed for the old test suite. For example,
3198 sorting DNS records because real resolvers return them in an arbitrary
3199 order. The new test suite's fake resolver always returns records in the
3202 PH/37 When running in the test harness, use -odi for submitted messages (e.g.
3203 bounces) except when queue_only is set, to avoid logging races between
3204 the different processes.
3206 PH/38 Panic-die if .include specifies a non-absolute path.
3208 PH/39 A tweak to the "H" retry rule from its user.
3210 JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
3211 a label. They prevented compilation on older perls.
3213 JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
3214 a warning to be raised on newish perls.
3216 JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
3217 on queue. Changes to match documented behaviour of showing count of
3218 messages matching specified criteria.
3220 PH/40 Changed the default ident timeout from 30s to 5s.
3222 PH/41 Added support for the use of login_cap features, on those BSD systems
3223 that have them, for controlling the resources used by pipe deliveries.
3225 PH/42 The content-scanning code uses fopen() to create files in which to put
3226 message data. Previously it was not paying any attention to the mode of
3227 the files. Exim runs with umask(0) because the rest of the code creates
3228 files with open(), and sets the required mode explicitly. Thus, these
3229 files were ending up world-writeable. This was not a big issue, because,
3230 being within the spool directory, they were not world-accessible. I have
3231 created a function called modefopen, which takes an additional mode
3232 argument. It sets umask(777), creates the file, chmods it to the required
3233 mode, then resets the umask. All the relevant calls to fopen() in the
3234 content scanning code have been changed to use this function.
3236 PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
3237 to 24 hours. This avoids potential overflow problems when processing G
3238 and H retry rules. I suspect nobody ever tinkers with this value.
3240 PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
3242 PH/45 When the plaintext authenticator is running as a client, the server's
3243 challenges are checked to ensure they are valid base64 strings. By
3244 default, the authentication attempt is cancelled if an invalid string is
3245 received. Setting client_ignore_invalid_base64 true ignores these errors.
3246 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
3247 they are received. Thus, the responses can be made to depend on the
3248 challenges. If an invalid string is ignored, an empty string is placed in
3251 PH/46 Messages that are created by the autoreply transport now contains a
3252 References: header, in accordance with RFCs 2822 and 3834.
3254 PH/47 Added authenticated_sender_force to the smtp transport.
3256 PH/48 The ${prvs expansion was broken on systems where time_t was long long.
3258 PH/49 Installed latest patch from the Sieve maintainer.
3260 PH/50 When an Exim quota was set without a file count quota, and mailbox_size
3261 was also set, the appendfile transport was unnecessarily scanning a
3262 directory of message files (e.g. for maildir delivery) to find the count
3263 of files (along with the size), even though it did not need this
3264 information. It now does the scan only if it needs to find either the
3265 size of the count of files.
3267 PH/51 Added ${time_eval: to convert Exim time strings into seconds.
3269 PH/52 Two bugs concerned with error handling when the smtp transport is
3272 (i) Exim was not creating retry information for temporary errors given
3273 for individual recipients after the DATA command when the smtp transport
3274 was used in LMTP mode. This meant that they could be retried too
3275 frequently, and not timed out correctly.
3277 (ii) Exim was setting the flag that allows error details to be returned
3278 for LMTP errors on RCPT commands, but not for LMTP errors for individual
3279 recipients that were returned after the DATA command.
3281 PH/53 This is related to PH/52, but is more general: for any failing address,
3282 when detailed error information was permitted to be returned to the
3283 sender, but the error was temporary, then after the final timeout, only
3284 "retry timeout exceeded" was returned. Now it returns the full error as
3285 well as "retry timeout exceeded".
3287 PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
3288 do this, and (what is worse) MTAs that accept it.
3290 PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
3291 will now be deprecated.
3293 PH/56 New os.c-cygwin from the Cygwin maintainer.
3295 JJ/06 exipick: added --unsorted option to allow unsorted output in all output
3296 formats (previously only available in exim formats via -bpr, -bpru,
3297 and -bpra. Now also available in native and exiqgrep formats)
3299 JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
3300 with very large, slow to parse queues
3302 JJ/08 exipick: added ! as generic prefix to negate any criteria format
3304 JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
3306 PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
3307 responses to authentication challenges, though it was showing the
3308 challenges; (ii) I've removed the CR characters from the debug output for
3311 PH/58 Allow for the insertion of a newline as well as a space when a string
3312 is turned into more than one encoded-word during RFC 2047 encoding. The
3313 Sieve code now uses this.
3315 PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
3316 data_4xx, lost_connection, tls_required.
3318 PH/60 When a VRFY deferred or FAILED, the log message rather than the user
3319 message was being sent as an SMTP response.
3321 PH/61 Add -l and -k options to exicyclog.
3323 PH/62 When verifying, if an address was redirected to one new address, so that
3324 verification continued, and the new address failed or deferred after
3325 having set something in $address_data, the value of $address_data was not
3326 passed back to the ACL. This was different to the case when no
3327 redirection occurred. The value is now passed back in both cases.
3329 PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
3330 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
3331 use login_cap.h, so on its own it isn't the distinguishing feature. The
3332 new name refers directly to the setclassresources() function.
3334 PH/65 Added configuration files for NetBSD3.
3336 PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
3338 PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
3339 is preferred over IPv4.
3341 PH/68 The bounce_return_message and bounce_return_body options were not being
3342 honoured for bounces generated during the reception of non-SMTP messages.
3343 In particular, this applied to messages rejected by the ACL. This bug has
3344 been fixed. However, if bounce_return_message is true and bounce_return_
3345 body is false, the headers that are returned for a non-SMTP message
3346 include only those that have been read before the error was detected.
3347 (In the case of an ACL rejection, they have all been read.)
3349 PH/69 The HTML version of the specification is now built in a directory called
3350 spec_html instead of spec.html, because the latter looks like a path with
3351 a MIME-type, and this confuses some software.
3353 PH/70 Catch two compiler warnings in sieve.c.
3355 PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
3356 function verify_get_ident() calls ip_connect() to connect a socket, but
3357 if the "connect()" function timed out, ip_connect() used to close the
3358 socket. However, verify_get_ident() also closes the socket later, and in
3359 between Exim writes to the log, which may get opened at this point. When
3360 the socket was closed in ip_connect(), the log could get the same file
3361 descriptor number as the socket. This naturally causes chaos. The fix is
3362 not to close the socket in ip_connect(); the socket should be closed by
3363 the function that creates it. There was only one place in the code where
3364 this was missing, in the iplookup router, which I don't think anybody now
3365 uses, but I've fixed it anyway.
3367 PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
3368 well as to direct DNS lookups. Otherwise the handling of names in host
3369 lists is inconsistent and therefore confusing.
3375 PH/01 Two changes to the default runtime configuration:
3377 (1) Move the checks for relay_from_hosts and authenticated clients from
3378 after to before the (commented out) DNS black list checks.
3380 (2) Add control=submission to the relay_from_hosts and authenticated
3381 clients checks, on the grounds that messages accepted by these
3382 statements are most likely to be submissions.
3384 PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
3386 (1) Generate an error if the third argument for the ${prvs expansion is
3389 (2) Treat a missing third argument of ${prvscheck as if it were an empty
3392 (3) Reset the variables that are obtained from the first argument of
3393 ${prvscheck and used in the second argument before leaving the code,
3394 because their memory is reclaimed, so using them afterwards may do
3397 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
3398 one (it's much easier than Tom thought :-).
3400 (5) Because of (4), we can now allow for the use of $prvscheck_result
3401 inside the third argument.
3403 PH/03 For some reason, the default setting of PATH when running a command from
3404 a pipe transport was just "/usr/bin". I have changed it to
3407 PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
3408 anything to be listed in the output from -bV.
3410 PH/05 When a filter generated an autoreply, the entire To: header line was
3411 quoted in the delivery log line, like this:
3413 => >A.N.Other <ano@some.domain> <original@ddress> ...
3415 This has been changed so that it extracts the operative address. There
3416 may be more than one such address. If so, they are comma-separated, like
3419 => >ano@some.domain,ona@other.domain <original@ddress> ...
3421 PH/06 When a client host used a correct literal IP address in a HELO or EHLO
3422 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
3423 not being looked up in the rDNS to get a host name, Exim was showing the
3424 IP address twice in Received: lines, even though the IP addresses were
3425 identical. For example:
3427 Received: from [1.2.3.4] (helo=[1.2.3.4])
3429 However, if the real host name was known, it was omitting the HELO data
3430 if it matched the actual IP address. This has been tidied up so that it
3431 doesn't show the same IP address twice.
3433 PH/07 When both +timestamp and +memory debugging was on, the value given by
3434 $tod_xxx expansions could be wrong, because the tod_stamp() function was
3435 called by the debug printing, thereby overwriting the timestamp buffer.
3436 Debugging no longer uses the tod_stamp() function when +timestamp is set.
3438 PH/08 When the original message was included in an autoreply transport, it
3439 always said "this is a copy of the message, including all the headers",
3440 even if body_only or headers_only was set. It now gives an appropriate
3443 PH/09 Applied a patch from the Sieve maintainer which:
3445 o fixes some comments
3446 o adds the (disabled) notify extension core
3447 o adds some debug output for the result of if/elsif tests
3448 o points to the current vacation draft in the documentation
3449 and documents the missing references header update
3453 o fixes a bug in processing the envelope test (when testing
3454 multiple envelope elements, the last element determined the
3457 PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
3458 Electronic Mail") by including:
3460 Auto-submitted: auto-generated
3462 in the messages that it generates (bounce messages and others, such as
3463 warnings). In the case of bounce messages for non-SMTP messages, there was
3464 also a typo: it was using "Auto_submitted" (underscore instead of
3465 hyphen). Since every message generated by Exim is necessarily in response
3466 to another message, thes have all been changed to:
3468 Auto-Submitted: auto-replied
3470 in accordance with these statements in the RFC:
3472 The auto-replied keyword:
3474 - SHOULD be used on messages sent in direct response to another
3475 message by an automatic process,
3477 - MUST NOT be used on manually-generated messages,
3479 - MAY be used on Delivery Status Notifications (DSNs) and Message
3480 Disposition Notifications (MDNs),
3482 - MUST NOT be used on messages generated by automatic or periodic
3483 processes, except for messages which are automatic responses to
3486 PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
3487 to the default Received: header definition.
3489 PH/12 Added log selector acl_warn_skipped (default on).
3491 PH/13 After a successful wildlsearch lookup, discard the values of numeric
3492 variables because (a) they are in the wrong storage pool and (b) even if
3493 they were copied, it wouldn't work properly because of the caching.
3495 PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
3496 checking when decoding. Apparently there are clients that generate
3497 overlong encoded strings. Why am I not surprised?
3499 PH/15 If the first argument of "${if match_address" was not empty, but did not
3500 contain an "@" character, Exim crashed. Now it writes a panic log message
3501 and treats the condition as false.
3503 PH/16 In autoreply, treat an empty string for "once" the same as unset.
3505 PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
3506 extension "envelope-auth". The code is finished and in agreement with
3507 other implementations, but there is no documentation so far and in fact,
3508 nobody wrote the draft yet. This extension is currently #undef'ed, thus
3509 not changing the active code.
3511 Print executed "if" and "elsif" statements when debugging is used. This
3512 helps a great deal to understand what a filter does.
3514 Document more things not specified clearly in RFC3028. I had all this
3515 sorted out, when out of a sudden new issues came to my mind. Oops."
3517 PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
3520 PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
3521 canonical form (as documented). However, after a host name lookup from
3522 the IP address, check_host() was doing a simple string comparison with
3523 addresses acquired from the DNS when checking that the found name did
3524 have the original IP as one of its addresses. Since any found IPv6
3525 addresses are likely to be in abbreviated form, the comparison could
3526 fail. Luckily, there already exists a function for doing the comparison
3527 by converting both addresses to binary, so now that is used instead of
3528 the text comparison.
3530 PH/20 There was another similar case to PH/19, when a complete host name was
3531 given in a host list; looking up its IP address could give an abbreviated
3532 form, whereas the current host's name might or might not be abbreviated.
3533 The same fix has been applied.
3539 PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
3540 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
3543 PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
3544 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
3546 PH/03 Typo: missing ".o" in src/pcre/Makefile.
3548 PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
3549 header line, restrict the check to what is listed in RFCs 2369 and 2929.
3550 Also, for "Auto-Submitted", treat anything other than "no" as
3551 non-personal, in accordance with RFC 3834. (Previously it treated
3552 anything starting "auto-" as non-personal.)
3554 TF/01 The control=submission/name=... option had a problem with syntax
3555 errors if the name included a slash character. The /name= option
3556 now slurps the rest of the string, so it can include any characters
3557 but it must come last in the list of options (after /sender_retain
3560 PH/05 Some modifications to the interface to the fake nameserver for the new
3568 TK/01 Added the "success_on_redirect" address verification option. See
3569 NewStuff for rationale and an example.
3571 PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
3573 PH/02 Patch to exigrep to allow it to work on syslog lines.
3575 PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
3576 fread() to skip over the body file's header line, because in Cygwin the
3577 header line is locked and is inaccessible.
3579 PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
3580 co-exist for some time) to make it clear that it is the Exim ID that is
3581 referenced, not the Message-ID: header line.
3583 PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
3584 string_format() function, because snprintf() does not exist on all
3587 PH/06 The use of forbid_filter_existstest now also locks out the use of the
3588 ${stat: expansion item.
3590 PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
3591 protocol synchronization error", to keep the pedants happy.
3593 PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
3594 well as for IRIX systems, when gcc is being used. See the host.c source
3597 PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
3599 PH/10 Named domain lists were not working if used in a queue_smtp_domains
3602 PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
3603 transport and to the smtp transport in LMTP mode.
3605 TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
3607 PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
3608 run a filter in a subprocess. This could lead to confusion in subsequent
3609 lookups in the parent process. There should also be a search_tidyup() at
3610 the end of the subprocess.
3612 PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
3613 only if the host matched helo_try_verify_hosts, which caused the
3614 verification to occur when the EHLO/HELO command was issued. The ACL just
3615 tested the remembered result. Now, if a previous verification attempt has
3616 not happened, "verify = helo" does it there and then.
3618 JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
3620 TK/03 Fix log output including CR from clamd.
3622 PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
3623 exist provoked a memory error which could cause a segfault.
3625 PH/15 Installed PCRE 6.2
3627 PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
3629 PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
3630 of the problem. Specifically, suggested +O2 rather than +O1 for the
3633 PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
3635 PH/20 If a delivery was routed to a non-standard port by means of an SRV
3636 record, the port was not correctly logged when the outgoing_port log
3637 selector was set (it logged the transort's default port).
3639 PH/21 Added support for host-specific ports to manualroute, queryprogram,
3640 fallback_hosts, and "hosts" in the smtp transport.
3642 PH/22 If the log selector "outgoing_port" is set, the port is now also given on
3643 host errors such as "Connection refused".
3645 PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
3646 authentication with radiusclient 0.4.9:
3648 - Error returned from rc_read_config was caught wrongly
3649 - Username/password not passed on to radius server due to wrong length.
3651 The presumption is that some radiusclient API changes for 4.51/PH/17
3652 were not taken care of correctly. The code is still untested by me (my
3653 Linux distribution still has 0.3.2 of radiusclient), but it was
3654 contributed by a Radius user.
3656 PH/24 When doing a callout, the value of $domain wasn't set correctly when
3657 expanding the "port" option of the smtp transport.
3659 TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
3660 while reading a MIME header. Thanks to Tom Hughes for a patch.
3662 PH/24 Include config.h inside local_scan.h so that configuration settings are
3665 PH/25 Make $smtp_command_argument available after all SMTP commands. This means
3666 that in an ACL for RCPT (for example), you can examine exactly what was
3669 PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
3670 commands, but it was not correctly comparing the address with the actual
3671 client host address. Thus, it would show the EHLO address in Received:
3672 header lines when this was not necessary.
3674 PH/27 Added the % operator to ${eval:}.
3676 PH/28 Exim tries to create and chdir to its spool directory when it starts;
3677 it should be ignoring failures (because with -C, for example, it has lost
3678 privilege). It wasn't ignoring creation failures other than "already
3681 PH/29 Added "crypteq" to the list of supported features that Exim outputs when
3684 PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
3685 because an input line was too long, either on its own, or by virtue of
3686 too many continuations, the temporary file was not being removed, and the
3687 return code was incorrect.
3689 PH/31 Missing "BOOL" in function definition in filtertest.c.
3691 PH/32 Applied Sieve patches from the maintainer.
3693 TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
3695 PH/33 Added "verify = not_blind".
3697 PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
3698 Local/Makefile (with some defaults set). These are used in built scripts
3699 such as exicyclog, but they have never been used in the exim_install
3700 script (though there are many overriding facilities there). I have
3701 arranged that the exim_install script now takes note of these two
3704 PH/35 Installed configuration files for Dragonfly.
3706 PH/36 When a locally submitted message by a trusted user did not contain a
3707 From: header, and the sender address was obtained from -f or from an SMTP
3708 MAIL command, and the trusted user did not use -F to supply a sender
3709 name, $originator_name was incorrectly used when constructing a From:
3710 header. Furthermore, $originator_name was used for submission mode
3711 messages from external hosts without From: headers in a similar way,
3712 which is clearly wrong.
3714 PH/37 Added control=suppress_local_fixups.
3716 PH/38 When log_selector = +received_sender was set, and the addition of the
3717 sender made the log line's construction buffer exactly full, or one byte
3718 less than full, an overflow happened when the terminating "\n" was
3721 PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
3722 when the result of a list match is failure because a DNS lookup failed.
3724 PH/40 RM_COMMAND is now used in the building process.
3726 PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
3727 the "build-* directories that it finds.
3729 PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
3730 address in a domain literal was a prefix of an interface address.
3732 PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
3733 when verifying a sender address, unless rewrite_headers is false.
3735 PH/44 Wrote a long comment about why errors_to addresses are verified as
3736 recipients, not senders.
3738 TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
3739 the ratelimit ACL was added.
3741 PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
3743 PH/46 Added extra information about PostgreSQL errors to the error string.
3745 PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
3746 avoiding the need to install special zones in a real server. This is
3747 backwards compatible; if it can't find the fake resolver, it drops back.
3748 Thus, both old and new test suites can be run.
3750 TF/02 Added util/ratelimit.pl
3752 TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
3753 clock is set back in time.
3755 TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
3756 Candler <B.Candler@pobox.com>.
3758 TF/05 The fix for PH/43 was not completely correct; widen_domains is always
3759 OK for addresses that are the result of redirections.
3761 PH/48 A number of further additions for the benefit of the new test suite,
3762 including a fake gethostbyname() that interfaces to the fake DNS resolver
3765 TF/06 The fix for widen_domains has also been applied to qualify_single and
3766 search_parents which are the other dnslookup options that can cause
3769 PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
3772 PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
3774 TF/07 Exim produced the error message "an SRV record indicated no SMTP
3775 service" if it encountered an MX record with an empty target hostname.
3776 The message is now "an MX or SRV record indicated no SMTP service".
3778 TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
3779 if the DNS of the sending site is misconfigured. This is quite a
3780 common situation. This change restores the behaviour of treating a
3781 helo verification defer as a failure.
3783 PH/51 If self=fail was set on a router, the bounce message did not include the
3784 actual error message.
3790 TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
3792 PH/01 When a transport filter timed out in a pipe delivery, and the pipe
3793 command itself ended in error, the underlying message about the transport
3794 filter timeout was being overwritten with the pipe command error. Now the
3795 underlying error message should be appended to the second error message.
3797 TK/01 Fix poll() being unavailable on Mac OSX 10.2.
3799 PH/02 Reduce the amount of output that "make" produces by default. Full output
3800 can still be requested.
3802 PH/03 The warning log line about a condition test deferring for a "warn" verb
3803 was being output only once per connection, rather than after each
3804 occurrence (because it was using the same function as for successful
3805 "warn" verbs). This seems wrong, so I have changed it.
3807 TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
3808 it should not have, which might have caused a crash in the right
3809 circumstances, but probably never did.
3811 PH/04 Installed a modified version of Tony Finch's patch to make submission
3812 mode fix the return path as well as the Sender: header line, and to
3813 add a /name= option so that you can make the user's friendly name appear
3816 TF/03 Added the control = fakedefer ACL modifier.
3818 TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
3819 Mark Lowes for thorough testing.
3821 TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
3823 TK/03 Merged latest SRS patch from Miles Wilton.
3825 PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
3826 with the definition in sysexits.h (which is #included earlier).
3827 Fortunately, Exim does not actually use EX_OK. The code used to try to
3828 preserve the sysexits.h value, by assuming that macro definitions were
3829 scanned for macro replacements. I have been disabused of this notion,
3830 so now the code just undefines EX_OK before #including unistd.h.
3832 PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
3833 in the smtp transport. When a block could not be written in a single
3834 write() function, the timeout was being re-applied to each part-write.
3835 This seems wrong - if the receiver was accepting one byte at a time it
3836 would take for ever. The timeout is now adjusted when this happens. It
3837 doesn't have to be particularly precise.
3839 TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
3840 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
3842 PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
3843 without a domain if the check to <postmaster@domain> fails.
3845 SC/01 Eximstats: added -xls and the ability to specify output files
3846 (patch written by Frank Heydlauf).
3848 SC/02 Eximstats: use FileHandles for outputting results.
3850 SC/03 Eximstats: allow any combination of xls, txt, and html output.
3852 SC/04 Eximstats: fixed display of large numbers with -nvr option
3854 SC/05 Eximstats: fixed merging of reports with empty tables.
3856 SC/06 Eximstats: added the -include_original_destination flag
3858 SC/07 Eximstats: removed tabs and trailing whitespace.
3860 TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
3862 TK/06 MBOX spool code: Add real "From " MBOX separator line
3863 so the .eml file is really in mbox format (even though
3864 most programs do not really care). Patch from Alex Miller.
3866 TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
3867 The latter is generated from $received_to and is only set if the
3868 message has one envelope recipient. SA can use these headers,
3869 obviously out-of-the-box. Patch from Alex Miller.
3871 PH/08 The ${def test on a variable was returning false if the variable's
3872 value was "0", contrary to what the specification has always said!
3873 The result should be true unless the variable is empty.
3875 PH/09 The syntax error of a character other than { following "${if
3876 def:variable_name" (after optional whitespace) was not being diagnosed.
3877 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
3878 accidental colon was present, for example, could give incorrect results.
3880 PH/10 Tidied the code in a number of places where the st_size field of a stat()
3881 result is used (not including appendfile, where other changes are about
3884 PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
3885 This involved changing a lot of size variables from int to off_t. It
3886 should work with maildirs and everything.
3888 TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
3889 spamd dying while we are connected to it.
3891 TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
3894 PH/12 Applied Alex Kiernan's patch for the API change for the error callback
3895 function for BDB 4.3.
3897 PH/13 Changed auto_thaw such that it does not apply to bounce messages.
3899 PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
3900 the sources for PCRE have been re-arranged and more files are now
3903 PH/15 The code I had for printing potentially long long variables in PH/11
3904 above was not the best (it lost precision). The length of off_t variables
3905 is now inspected at build time, and an appropriate printing format (%ld
3906 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
3907 to be "long long int" or "long int". This is needed for the internal
3908 formatting function string_vformat().
3910 PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
3911 the configuration file to be ":syslog", then the script "guesses" where
3912 the logs files are, rather than using the compiled in default. In our
3913 case the guess is not the same as the compiled default, so the script
3914 suddenly stopped working when I started to use syslog. The patch checks
3915 to see if log_file_path is "". If so, it attempts to read it from exim
3916 with no configuration file to get the compiled in version, before it
3917 falls back to the previous guessing code."
3919 TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
3920 implementing BATV in an Exim configuration. See NewStuff for the gory
3923 PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
3924 Makefile that are specific to HP-UX.
3926 PH/18 If the "use_postmaster" option was set for a recipient callout together
3927 with the "random" option, the postmaster address was used as the MAIL
3928 FROM address for the random test, but not for the subsequent recipient
3929 test. It is now used for both.
3931 PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
3932 patch removes a few documentation additions to RFC 3028, because the
3933 latest draft now contains them. It adds the new en;ascii-case comparator
3934 and a new error check for 8bit text in MIME parts. Comparator and
3935 require names are now matched exactly. I enabled the subaddress
3936 extension, but it is not well tested yet (read: it works for me)."
3938 PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
3939 rework some of the code of TK/09 above to avoid the hardwired use of
3940 "%lld" and "long long". Replaced the call to snprintf() with a call to
3943 PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
3944 records point to non-existent hosts", "retry timeout exceeded", and
3945 "retry time not reached for any host after a long failure period".
3947 PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
3948 experimental DomainKeys support:
3950 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
3951 (2) On an error such as an illegally used "control", the wrong name for
3952 the control was given.
3954 These problems did NOT occur unless DomainKeys support was compiled.
3956 PH/23 Added daemon_startup_retries and daemon_startup_sleep.
3958 PH/24 Added ${if match_ip condition.
3960 PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
3961 databases so that it will be absolutely obvious if a crash occurs in the
3962 DB library. This is a regular occurrence (often caused by mis-matched
3965 PH/26 Insert a lot of missing (void) casts for functions such as chown(),
3966 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
3967 picked up on a user's system that detects such things. There doesn't seem
3968 to be a gcc warning option for this - only an attribute that has to be
3969 put on the function's prototype. It seems that in Fedora Core 4 they have
3970 set this on a number of new functions. No doubt there will be more in due
3973 PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
3974 specify a transport. However, if an address that was verified by such a
3975 router was the subject of a callout, Exim crashed because it tried to
3976 read the rcpt_include_affixes from the non-existent transport. Now it
3977 just assumes that the setting of that option is false. This bug was
3978 introduced by 4.51/PH/31.
3980 PH/28 Changed -d+all to exclude +memory, because that information is very
3981 rarely of interest, but it makes the output a lot bigger. People tend to
3982 do -d+all out of habit.
3984 PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
3985 code in os-type was giving problems when libc.so lives in lib64, like on
3988 PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
3989 aren't the modern standard, and it seems that some systems' include files
3990 don't always have them. Exim was already checking for some of the newer
3991 ones like T_AAAA, and defining it itself. I've added checks for all the
3992 record types that Exim uses.
3994 PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
3995 not automatically generating a new one, as it is supposed to. This
3996 prevented TLS from working. If the file did exist, but contained invalid
3997 data, a new version was generated, as expected. It was only the case of a
3998 non-existent file that was broken.
4000 TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
4001 with a change in libdomainkeys > 0.64.
4003 TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
4004 from DNS. If the selector record carries the flag, it now has
4005 precedence over the domain-wide flag.
4007 TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
4009 PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
4010 the use of a port name that isn't defined in /etc/services) occurred, the
4011 message was deferred as in a normal delivery, and thus remained on the
4012 spool, instead of being failed because of the mua_wrapper setting. This
4013 is now fixed, and I tidied up some of the mua_wrapper messages at the
4016 SC/08 Eximstats: whilst parsing the mainlog(s), store information about
4017 the messages in a hash of arrays rather than using individual hashes.
4018 This is a bit cleaner and results in dramatic memory savings, albeit
4019 at a slight CPU cost.
4021 SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
4022 as requested by Marc Sherman.
4024 SC/10 Eximstats: added histograms for user specified patterns as requested
4027 SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
4029 PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
4030 fopen() in the content-scanning modules that did not already have it.
4036 TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
4037 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
4039 TK/02 Fix ACL "control" statement not being available in MIME ACL.
4041 TK/03 Fix ACL "regex" condition not being available in MIME ACL.
4043 PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
4044 to test Sieve filters that use "vacation".
4046 PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
4047 that changes the way the GnuTLS parameters are stored in the cache file.
4048 The new format can be generated externally. For backward compatibility,
4049 if the data in the cache doesn't make sense, Exim assumes it has read an
4050 old-format file, and it generates new data and writes a new file. This
4051 means that you can't go back to an older release without removing the
4054 PH/03 A redirect router that has both "unseen" and "one_time" set does not
4055 work if there are any delivery delays because "one_time" forces the
4056 parent to be marked "delivered", so its unseen clone is never tried
4057 again. For this reason, Exim now forbids the simultaneous setting of
4060 PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
4061 redirected to themselves ("homonym" addresses). Read the long ChangeLog
4062 entry if you want to know the details. The fix, however, neglected to
4063 consider the case when local delivery batching is involved. The test for
4064 "previously delivered" was not happening when checking to see if an
4065 address could be batched with a previous (undelivered) one; under
4066 certain circumstances this could lead to multiple deliveries to the same
4069 PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
4070 in its include files, and this causes problems building Exim.
4072 PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
4073 header_syntax) but Exim was just ignoring anything given after a slash.
4074 In particular, this caused confusion with an attempt to use "verify =
4075 reverse_host_lookup/defer_ok". An error is now given when options are
4076 supplied for verify items that do not have them. (Maybe reverse_host_
4077 lookup should have a defer_ok option, but that's a different point.)
4079 PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
4080 defined by RFC 821) to 2048, because there were problems with some AUTH
4081 commands, and RFC 1869 says the size should be increased for extended
4082 SMTP commands that take arguments.
4084 PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
4087 PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
4088 "unknown" error; now it says that the functionality isn't in the binary.
4090 PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
4091 an address' error message when a string expansion fails (syntax or
4092 whatever). Otherwise the password may appear in the log. Following change
4093 PH/42 below, there is no longer a chance of it appearing in a bounce
4096 PH/11 Installed exipick version 20050225.0 from John Jetmore.
4098 PH/12 If the last host in a fallback_hosts list was multihomed, only the first
4099 of its addresses was ever tried. (Bugzilla bug #2.)
4101 PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
4102 the result incorrectly in the debug output. (It correctly added a newline
4103 to what was transported.)
4105 TF/01 Added $received_time.
4107 PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
4108 commented out examples of how to interface to a virus scanner and to
4109 SpamAssassin. Also added commented examples of av_scanner and
4110 spamd_address settings.
4112 PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
4113 and controls are allowed in which ACLs. There were a couple of minor
4114 errors. Some of the entries in the conditions table (which is a table of
4115 where they are NOT allowed) were getting very unwieldy; rewrote them as a
4116 negation of where the condition IS allowed.
4118 PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
4120 PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
4121 header file does not have a version number, so I've had to invent a new
4122 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
4123 API. The code is untested by me (my Linux distribution still has 0.3.2 of
4124 radiusclient), but it was contributed by a Radius user.
4126 PH/18 Installed Lars Mainka's patch for the support of CRL collections in
4127 files or directories, for OpenSSL.
4129 PH/19 When an Exim process that is running as root has to create an Exim log
4130 file, it does so in a subprocess that runs as exim:exim so as to get the
4131 ownership right at creation (otherwise, other Exim processes might see
4132 the file with the wrong ownership). There was no test for failure of this
4133 fork() call, which would lead to the process getting stuck as it waited
4134 for a non-existent subprocess. Forks do occasionally fail when resources
4135 run out. I reviewed all the other calls to fork(); they all seem to check
4138 PH/20 When checking for unexpected SMTP input at connect time (before writing
4139 the banner), Exim was not dealing correctly with a non-positive return
4140 from the read() function. If the client had disconnected by this time,
4141 the result was a log entry for a synchronization error with an empty
4142 string after "input=" when read() returned zero. If read() returned -1
4143 (an event I could not check), uninitialized data bytes were printed.
4144 There were reports of junk text (parts of files, etc) appearing after
4147 PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
4149 PH/22 Added support for macro redefinition, and (re)definition in between
4150 driver and ACL definitions.
4152 PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
4153 forgetting to use the resulting value; it was using the unexpanded value.
4155 PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
4156 hadn't been configured. The fix is from Juergen Kreileder, who
4157 understands it better than I do:
4159 "Here's what I see happening with three configured cyrus_sasl
4160 authenticators configured (plain, login, cram-md5):
4162 On startup auth_cyrus_sasl_init() gets called for each of these.
4163 This means three calls to sasl_listmech() without a specified mech_list.
4164 => SASL tests which mechs of all available mechs actually work
4165 => three warnings about OTP not working
4166 => the returned list contains: plain, login, cram-md5, digest-md5, ...
4168 With the patch, sasl_listmech() also gets called three times. But now
4169 SASL's mech_list option is set to the server_mech specified in the the
4170 authenticator. Or in other words, the answer from sasl_listmech()
4171 gets limited to just the mech you're testing for (which is different
4173 => the return list contains just 'plain' or 'login', 'cram-md5' or
4174 nothing depending on the value of ob->server_mech.
4176 I've just tested the patch: Authentication still works fine,
projects / exim.git / blob