1 Change log file for Exim from version 4.21
2 -------------------------------------------
7 PP/01 Handle short writes when writing local log-files.
8 In practice, only affects FreeBSD (8 onwards).
9 Bugzilla 1053, with thanks to Dmitry Isaikin.
11 NM/01 Bugzilla 949 - Documentation tweak
13 NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
16 NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
18 PP/02 Implemented gsasl authenticator.
20 PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
22 PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
23 `pkg-config foo` for cflags/libs.
25 PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
26 with rest of GSASL and with heimdal_gssapi.
28 PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
29 `pkg-config foo` for cflags/libs for the TLS implementation.
31 PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
32 properties get this fed in as external SSF. A number of robustness
33 and debugging improvements to the cyrus_sasl authenticator.
35 PP/08 cyrus_sasl server now expands the server_realm option.
37 PP/09 Bugzilla 1214 - Log authentication information in reject log.
38 Patch by Jeremy Harris.
40 PP/10 Added dbmjz lookup type.
42 PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
44 PP/12 MAIL args handles TAB as well as SP, for better interop with
45 non-compliant senders.
46 Analysis and variant patch by Todd Lyons.
48 NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
49 Bug report from Lars Müller <lars@samba.org> (via SUSE),
50 Patch from Dirk Mueller <dmueller@suse.com>
52 PP/13 tls_peerdn now print-escaped for spool files.
53 Observed some $tls_peerdn in wild which contained \n, which resulted
54 in spool file corruption.
56 PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
57 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
58 or write after TLS renegotiation, which otherwise led to messages
61 TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
62 as a tracking header (ie: a signed header comes before the signature).
63 Patch from Wolfgang Breyha.
65 JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
66 comma-sep list; embedded commas doubled.
68 JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
70 PP/15 LDAP: Check for errors of TLS initialisation, to give correct
72 Report and patch from Dmitry Banschikov.
74 PP/16 Removed "dont_insert_empty_fragments" fron "openssl_options".
75 Removed SSL_clear() after SSL_new() which led to protocol negotiation
76 failures. We appear to now support TLS1.1+ with Exim.
78 PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
79 lets Exim select keys and certificates based upon TLS SNI from client.
80 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
81 before an outbound SMTP session. New log_selector, +tls_sni.
83 PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
84 NULL dereference. Report and patch from Alun Jones.
86 PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
87 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
88 Not seeing resolver debug output on NetBSD, but suspect this is a
89 resolver implementation change.
91 PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
92 Left warnings. Added "eximon gdb" invocation mode.
94 PP/21 Defaulting "accept_8bitmime" to true, not false.
96 PP/22 Added -bw for inetd wait mode support.
98 PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
99 locate the relevant includes and libraries. Made this the default.
101 PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
102 Bugzilla 1246, report and most of solution from Tomasz Kusy.
104 JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
105 This may cause build issues on older platforms.
107 PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
108 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
109 gnutls_require_mac & gnutls_require_protocols (no longer supported).
110 Added SNI support via GnuTLS too.
111 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
113 PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
115 PP/27 Applied dnsdb SPF support patch from Janne Snabb.
117 JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
123 PP/01 Solaris build fix for Oracle's LDAP libraries.
124 Bugzilla 1109, patch from Stephen Usher.
126 TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
128 TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
131 TF/02 Fix a couple more cases where we did not log the error message
132 when unlink() failed. See also change 4.74-TF/03.
134 TF/03 Make the exiwhat support code safe for signals. Previously Exim might
135 lock up or crash if it happened to be inside a call to libc when it
136 got a SIGUSR1 from exiwhat.
138 The SIGUSR1 handler appends the current process status to the process
139 log which is later printed by exiwhat. It used to use the general
140 purpose logging code to do this, but several functions it calls are
141 not safe for signals.
143 The new output code in the SIGUSR1 handler is specific to the process
144 log, and simple enough that it's easy to inspect for signal safety.
145 Removing some special cases also simplifies the general logging code.
146 Removing the spurious timestamps from the process log simplifies
149 TF/04 Improved ratelimit ACL condition.
151 The /noupdate option has been deprecated in favour of /readonly which
152 has clearer semantics. The /leaky, /strict, and /readonly update modes
153 are mutually exclusive. The update mode is no longer included in the
154 database key; it just determines when the database is updated. (This
155 means that when you upgrde Exim will forget old rate measurements.)
157 Exim now checks that the per_* options are used with an update mode that
158 makes sense for the current ACL. For example, when Exim is processing a
159 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
160 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
161 must specify per_mail/readonly. If you omit the update mode it defaults to
162 /leaky where that makes sense (as before) or /readonly where required.
164 The /noupdate option is now undocumented but still supported for
165 backwards compatibility. It is equivalent to /readonly except that in
166 ACLs where /readonly is required you may specify /leaky/noupdate or
167 /strict/noupdate which are treated the same as /readonly.
169 A useful new feature is the /count= option. This is a generalization
170 of the per_byte option, so that you can measure the throughput of other
171 aggregate values. For example, the per_byte option is now equivalent
172 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
174 The per_rcpt option has been generalized using the /count= mechanism
175 (though it's more complicated than the per_byte equivalence). When it is
176 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
177 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
178 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
179 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
180 Note that using per_rcpt with a non-readonly update mode in more than
181 one ACL will cause the recipients to be double-counted. (The per_mail
182 and per_byte options don't have this problem.)
184 The handling of very low rates has changed slightly. If the computed rate
185 is less than the event's count (usually one) then this event is the first
186 after a long gap. In this case the rate is set to the same as this event's
187 count, so that the first message of a spam run is counted properly.
189 The major new feature is a mechanism for counting the rate of unique
190 events. The new per_addr option counts the number of different
191 recipients that someone has sent messages to in the last time period. It
192 behaves like per_rcpt if all the recipient addresses are different, but
193 duplicate recipient addresses do not increase the measured rate. Like
194 the /count= option this is a general mechanism, so the per_addr option
195 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
196 example, measure the rate that a client uses different sender addresses
197 with the options per_mail/unique=$sender_address. There are further
198 details in the main documentation.
200 TF/05 Removed obsolete $Cambridge$ CVS revision strings.
202 TF/06 Removed a few PCRE remnants.
204 TF/07 Automatically extract Exim's version number from tags in the git
205 repository when doing development or release builds.
207 PP/02 Raise smtp_cmd_buffer_size to 16kB.
208 Bugzilla 879. Patch from Paul Fisher.
210 PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
211 Heavily based on revision 40f9a89a from Simon Arlott's tree.
214 PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
216 PP/05 Variable $av_failed, true if the AV scanner deferred.
217 Bugzilla 1078. Patch from John Horne.
219 PP/06 Stop make process more reliably on build failure.
220 Bugzilla 1087. Patch from Heiko Schlittermann.
222 PP/07 Make maildir_use_size_file an _expandable_ boolean.
223 Bugzilla 1089. Patch from Heiko Schlittermann.
225 PP/08 Handle ${run} returning more data than OS pipe buffer size.
226 Bugzilla 1131. Patch from Holger Weiß.
228 PP/09 Handle IPv6 addresses with SPF.
229 Bugzilla 860. Patch from Wolfgang Breyha.
231 PP/10 GnuTLS: support TLS 1.2 & 1.1.
233 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
236 PP/11 match_* no longer expand right-hand-side by default.
237 New compile-time build option, EXPAND_LISTMATCH_RHS.
238 New expansion conditions, "inlist", "inlisti".
240 PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
242 PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
244 PP/14 fix log_write() format string regression from TF/03.
245 Bugzilla 1152. Patch from Dmitry Isaikin.
251 PP/01 The new ldap_require_cert option would segfault if used. Fixed.
253 PP/02 Harmonised TLS library version reporting; only show if debugging.
254 Layout now matches that introduced for other libraries in 4.74 PP/03.
256 PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
258 PP/04 New "dns_use_edns0" global option.
260 PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
263 PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
264 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
266 TK/01 Updated PolarSSL code to 0.14.2.
267 Bugzilla 1097. Patch from Andreas Metzler.
269 PP/07 Catch divide-by-zero in ${eval:...}.
272 PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
275 TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
276 format-string attack -- SECURITY: remote arbitrary code execution.
278 TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
279 time unintentionally subject to list matching rules, letting the header
280 cause arbitrary Exim lookups (of items which can occur in lists, *not*
281 arbitrary string expansion). This allowed for information disclosure.
283 PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
284 INT_MIN/-1 -- value coerced to INT_MAX.
290 NM/01 Workround for PCRE version dependency in version reporting
293 TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
294 This fixes portability to compilers other than gcc, notably
295 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
297 TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
298 makefiles for portability to HP-UX and POSIX correctness.
300 PP/01 Permit LOOKUP_foo enabling on the make command-line.
301 Also via indented variable definition in the Makefile.
302 (Debugging by Oliver Heesakkers).
304 PP/02 Restore caching of spamd results with expanded spamd_address.
305 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
307 PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
308 Improves build reliability. Fix from: Frank Elsner
310 NM/02 Fix wide character breakage in the rfc2047 coding
311 Fixes bug 1064. Patch from Andrey N. Oktyabrski
313 NM/03 Allow underscore in dnslist lookups
314 Fixes bug 1026. Patch from Graeme Fowler
316 PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
317 Code patches from Adam Ciarcinski of NetBSD.
319 NM/04 Fixed exiqgrep to cope with mailq missing size issue
322 PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
323 is logged, to avoid truncation. Patch from John Horne.
325 PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
326 Patch from Jakob Hirsch.
328 PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
329 SQL string expansion failure details.
330 Patch from Andrey Oktyabrski.
332 PP/08 Bugzilla 486: implement %M datestamping in log filenames.
333 Patch from Simon Arlott.
335 PP/09 New lookups functionality failed to compile on old gcc which rejects
336 extern declarations in function scope.
337 Patch from Oliver Fleischmann
339 PP/10 Use sig_atomic_t for flags set from signal handlers.
340 Check getgroups() return and improve debugging.
341 Fixed developed for diagnosis in bug 927 (which turned out to be
344 PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
345 Patch from Mark Zealey.
347 PP/12 Bugzilla 1056: Improved spamd server selection.
348 Patch from Mark Zealey.
350 PP/13 Bugzilla 1086: Deal with maildir quota file races.
351 Based on patch from Heiko Schlittermann.
353 PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
354 Patch from Uwe Doering, sign-off by Michael Haardt.
356 NM/05 Fix to spam.c to accommodate older gcc versions which dislike
357 variable declaration deep within a block. Bug and patch from
360 PP/15 lookups-Makefile IRIX compatibilty coercion.
362 PP/16 Make DISABLE_DKIM build knob functional.
364 NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
365 Patch by Simon Arlott
367 TF/03 Fix valgrind.h portability to C89 compilers that do not support
368 variable argument macros. Our copy now differs from upstream.
374 TF/01 Failure to get a lock on a hints database can have serious
375 consequences so log it to the panic log.
377 TF/02 Log LMTP confirmation messages in the same way as SMTP,
378 controlled using the smtp_confirmation log selector.
380 TF/03 Include the error message when we fail to unlink a spool file.
382 DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
383 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
384 for maintaining out-of-tree patches for some time.
386 PP/01 Bugzilla 139: Documentation and portability issues.
387 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
388 Handle per-OS dynamic-module compilation flags.
390 PP/02 Let /dev/null have normal permissions.
391 The 4.73 fixes were a little too stringent and complained about the
392 permissions on /dev/null. Exempt it from some checks.
393 Reported by Andreas M. Kirchwitz.
395 PP/03 Report version information for many libraries, including
396 Exim version information for dynamically loaded libraries. Created
397 version.h, now support a version extension string for distributors
398 who patch heavily. Dynamic module ABI change.
400 PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
401 privilege escalation vulnerability whereby the Exim run-time user
402 can cause root to append content of the attacker's choosing to
405 PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
408 PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
409 If dropping privileges for untrusted macros, we disabled normal logging
410 on the basis that it would fail; for the Exim run-time user, this is not
411 the case, and it resulted in successful deliveries going unlogged.
412 Fixed. Reported by Andreas Metzler.
418 PP/01 Date: & Message-Id: revert to normally being appended to a message,
419 only prepend for the Resent-* case. Fixes regression introduced in
420 Exim 4.70 by NM/22 for Bugzilla 607.
422 PP/02 Include check_rfc2047_length in configure.default because we're seeing
423 increasing numbers of administrators be bitten by this.
425 JJ/01 Added DISABLE_DKIM and comment to src/EDITME
427 PP/03 Bugzilla 994: added openssl_options main configuration option.
429 PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
431 PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
433 PP/06 Adjust NTLM authentication to handle SASL Initial Response.
435 PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
436 without a peer certificate, leading to a segfault because of an
437 assumption that peers always have certificates. Be a little more
438 paranoid. Problem reported by Martin Tscholak.
440 PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
441 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
442 NB: ClamAV planning to remove STREAM in "middle of 2010".
443 CL also introduces -bmalware, various -d+acl logging additions and
444 more caution in buffer sizes.
446 PP/09 Implemented reverse_ip expansion operator.
448 PP/10 Bugzilla 937: provide a "debug" ACL control.
450 PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
452 PP/12 Bugzilla 973: Implement --version.
454 PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
456 PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
458 PP/15 Bugzilla 816: support multiple condition rules on Routers.
460 PP/16 Add bool_lax{} expansion operator and use that for combining multiple
461 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
462 ignore trailing whitespace.
464 JJ/02 prevent non-panic DKIM error from being sent to paniclog
466 JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
469 PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
470 Notification from Dr Andrew Aitchison.
472 PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
473 ExtendedDetectionInfo response format.
474 Notification from John Horne.
476 PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
479 PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
480 XSL and documented dependency on system catalogs, with examples of how
483 DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
486 DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
487 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
488 configuration file which is writeable by the Exim user or group.
490 DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
491 of configuration files to cover files specified with the -C option if
492 they are going to be used with root privileges, not just the default
495 DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
496 option (effectively making it always true).
498 DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
499 files to be used while preserving root privileges.
501 DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
502 that rogue child processes cannot use them.
504 PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
505 run-time user, instead of root.
507 PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
508 Exim run-time user without dropping privileges.
510 DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
511 result string, instead of calling string_vformat() twice with the same
514 DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
515 for other users. Others should always drop root privileges if they use
516 -C on the command line, even for a whitelisted configure file.
518 DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
520 NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
526 JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
527 $data_path, and $header_path variables; fixed documentation bugs and
530 JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
531 exipick to access non-standard spools, including the "frozen" queue
534 NM/01 Bugzilla 965: Support mysql stored procedures.
535 Patch from Alain Williams
537 NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
539 NM/03 Bugzilla 955: Documentation fix for max_rcpts.
540 Patch from Andreas Metzler
542 NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
543 Patch from Kirill Miazine
545 NM/05 Bugzilla 671: Added umask to procmail example.
547 JJ/03 installed exipick 20100323.0, fixing doc bug
549 NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
550 directory. Notification and patch from Dan Rosenberg.
552 TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
554 TK/02 Improve log output when DKIM signing operation fails.
556 MH/01 Treat the transport option dkim_domain as a colon separated
557 list, not as a single string, and sign the message with each element,
558 omitting multiple occurences of the same signer.
560 NM/07 Null terminate DKIM strings, Null initialise DKIM variable
561 Bugzilla 985, 986. Patch by Simon Arlott
563 NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
564 Patch by Simon Arlott
566 PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
567 MBX locking. Notification from Dan Rosenberg.
573 TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
575 NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
577 NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
579 NM/03 Bugzilla 847: Enable DNSDB lookup by default.
581 NM/04 Bugzilla 915: Flag broken perl installation during build.
587 TK/01 Added patch by Johannes Berg that expands the main option
588 "spamd_address" if it starts with a dollar sign.
590 TK/02 Write list of recipients to X-Envelope-Sender header when building
591 the mbox-format spool file for content scanning (suggested by Jakob
594 TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
595 (http://www.dcc-servers.net/) support via dccifd. Activated by
596 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
598 TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
599 by Mark Daniel Reidel <mr@df.eu>.
601 NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
602 When building exim an external PCRE library is now needed -
603 PCRE is a system library on the majority of modern systems.
604 See entry on PCRE_LIBS in EDITME file.
606 NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
607 conversation. Added nologin parameter to request.
608 Patch contributed by Kirill Miazine.
610 TF/01 Do not log submission mode rewrites if they do not change the address.
612 TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
614 NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
615 log files in place. Contributed by Roberto Lima.
617 NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
619 TF/03 Bugzilla 615: When checking the local_parts router precondition
620 after a local_part_suffix or local_part_prefix option, Exim now
621 does not use the address's named list lookup cache, since this
622 contains cached lookups for the whole local part.
624 NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
625 Robert Millan. Documentation is in experimental-spec.txt.
627 TF/04 Bugzilla 668: Fix parallel build (make -j).
629 NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
631 NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
632 Patch provided by Jan Srzednicki.
634 TF/05 Leading white space used to be stripped from $spam_report which
635 wrecked the formatting. Now it is preserved.
637 TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
638 that they are available at delivery time.
640 TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
642 TF/08 TLS error reporting now respects the incoming_interface and
643 incoming_port log selectors.
645 TF/09 Produce a more useful error message if an SMTP transport's hosts
646 setting expands to an empty string.
648 NM/06 Bugzilla 744: EXPN did not work under TLS.
649 Patch provided by Phil Pennock.
651 NM/07 Bugzilla 769: Extraneous comma in usage fprintf
652 Patch provided by Richard Godbee.
654 NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
655 acl_smtp_notquit, added index entry.
657 NM/09 Bugzilla 787: Potential buffer overflow in string_format.
658 Patch provided by Eugene Bujak.
660 NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
661 accept(). Patch provided by Maxim Dounin.
663 NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
664 Patch provided by Phil Pennock.
666 NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
668 NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
669 Patch provided by Brad "anomie" Jorsch.
671 NM/14 Bugzilla 622: Added timeout setting to transport filter.
672 Patch provided by Dean Brooks.
674 TK/05 Add native DKIM support (does not depend on external libraries).
676 NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
677 Patch provided by Graeme Fowler.
679 NM/16 Bugzilla 851: Documentation example syntax fix.
681 NM/17 Changed NOTICE file to remove references to embedded PCRE.
683 NM/18 Bugzilla 894: Fix issue with very long lines including comments in
686 NM/19 Bugzilla 745: TLS version reporting.
687 Patch provided by Phil Pennock.
689 NM/20 Bugzilla 167: bool: condition support.
690 Patch provided by Phil Pennock.
692 NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
693 clients. Patch provided by Phil Pennock.
695 NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
696 Patch provided by Brad "anomie" Jorsch.
698 NM/23 Bugzilla 687: Fix misparses in eximstats.
699 Patch provided by Heiko Schlittermann.
701 NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
702 Patch provided by Heiko Schlittermann.
704 NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
705 plus update to original patch.
707 NM/26 Bugzilla 799: Documentation correction for ratelimit.
709 NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
710 Patch provided by David Brownlee.
712 NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
714 NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
716 NM/30 Bugzilla 888: TLS documentation bugfixes.
718 NM/31 Bugzilla 896: Dovecot buffer overrun fix.
720 NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
721 Unlike the original bugzilla I have changed all shell scripts in src tree.
723 NM/33 Bugzilla 898: Transport filter timeout fix.
724 Patch by Todd Rinaldo.
726 NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
727 Patch by Serge Demonchaux.
729 NM/35 Bugzilla 39: Base64 decode bug fixes.
730 Patch by Jakob Hirsch.
732 NM/36 Bugzilla 909: Correct connect() call in dcc code.
734 NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
736 NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
738 NM/39 Bugzilla 911: Fixed MakeLinks build script.
744 TK/01 Add preliminary DKIM support. Currently requires a forked version of
745 ALT-N's libdkim that I have put here:
746 http://duncanthrax.net/exim-experimental/
748 Note to Michael Haardt: I had to rename some vars in sieve.c. They
749 were called 'true' and it seems that C99 defines that as a reserved
750 keyword to be used with 'bool' variable types. That means you could
751 not include C99-style headers which use bools without triggering
752 build errors in sieve.c.
754 NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
755 as mailq or other aliases. Changed the --help handling significantly
756 to do whats expected. exim_usage() emits usage/help information.
758 SC/01 Added the -bylocaldomain option to eximstats.
760 NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
762 NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
764 NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
770 PH/01 Another patch from the Sieve maintainer.
772 PH/02 When an IPv6 address is converted to a string for single-key lookup
773 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
774 dots are used instead of colons so that keys in lsearch files need not
775 contain colons. This was done some time before quoting was made available
776 in lsearch files. However, iplsearch files do require colons in IPv6 keys
777 (notated using the quote facility) so as to distinguish them from IPv4
778 keys. This meant that lookups for IP addresses in host lists did not work
779 for iplsearch lookups.
781 This has been fixed by arranging for IPv6 addresses to be expressed with
782 colons if the lookup type is iplsearch. This is not incompatible, because
783 previously such lookups could never work.
785 The situation is now rather anomolous, since one *can* have colons in
786 ordinary lsearch keys. However, making the change in all cases is
787 incompatible and would probably break a number of configurations.
789 TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
792 MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
793 conversion specification without a maximum field width, thereby enabling
794 a rogue spamd server to cause a buffer overflow. While nobody in their
795 right mind would setup Exim to query an untrusted spamd server, an
796 attacker that gains access to a server running spamd could potentially
797 exploit this vulnerability to run arbitrary code as the Exim user.
799 TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
800 $primary_hostname instead of what libspf2 thinks the hosts name is.
802 MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
803 a directory entry by the name of the lookup key. Previously, if a
804 symlink pointed to a non-existing file or a file in a directory that
805 Exim lacked permissions to read, a lookup for a key matching that
806 symlink would fail. Now it is enough that a matching directory entry
807 exists, symlink or not. (Bugzilla 503.)
809 PH/03 The body_linecount and body_zerocount variables are now exported in the
812 PH/04 Added the $dnslist_matched variable.
814 PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
815 This means they are set thereafter only if the connection becomes
818 PH/06 Added the client_condition to authenticators so that some can be skipped
819 by clients under certain conditions.
821 PH/07 The error message for a badly-placed control=no_multiline_responses left
822 "_responses" off the end of the name.
824 PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
826 PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
827 (without spaces) instead of just copying the configuration text.
829 PH/10 Added the /noupdate option to the ratelimit ACL condition.
831 PH/11 Added $max_received_linelength.
833 PH/12 Added +ignore_defer and +include_defer to host lists.
835 PH/13 Installed PCRE version 7.2. This needed some changes because of the new
836 way in which PCRE > 7.0 is built.
838 PH/14 Implemented queue_only_load_latch.
840 PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
841 MAIL command. The effect was to mangle the value on 64-bit systems.
843 PH/16 Another patch from the Sieve maintainer.
845 PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
847 PH/18 If a system quota error occurred while trying to create the file for
848 a maildir delivery, the message "Mailbox is full" was not appended to the
849 bounce if the delivery eventually timed out. Change 4.67/27 below applied
850 only to a quota excession during the actual writing of the file.
852 PH/19 It seems that peer DN values may contain newlines (and other non-printing
853 characters?) which causes problems in log lines. The DN values are now
854 passed through string_printing() before being added to log lines.
856 PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
857 and InterBase are left for another time.)
859 PH/21 Added message_body_newlines option.
861 PH/22 Guard against possible overflow in moan_check_errorcopy().
863 PH/23 POSIX allows open() to be a macro; guard against that.
865 PH/24 If the recipient of an error message contained an @ in the local part
866 (suitably quoted, of course), incorrect values were put in $domain and
867 $local_part during the evaluation of errors_copy.
873 MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
874 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
877 PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
878 issue a MAIL command.
880 PH/02 In an ACL statement such as
882 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
884 if a client was not listed at all, or was listed with a value other than
885 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
886 the condition was not true (as it should be), so access was not denied.
887 The bug was that the ! inversion was incorrectly passed on to the second
888 item. This has been fixed.
890 PH/03 Added additional dnslists conditions == and =& which are different from
891 = and & when the dns lookup returns more than one IP address.
893 PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
894 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
896 PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
897 FSYNC, which compiles an option called disable_fsync that allows for
898 bypassing fsync(). The documentation is heavily laced with warnings.
900 SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
902 PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
903 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
904 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
905 including adding "make clean"; (3) Added -fPIC when compiling the test
906 dynamically loaded module, to get rid of a warning.
908 MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
909 message fails, move_frozen_messages = true and ignore_bounce_errors_after
910 = 0s. The bug is otherwise harmless.
912 PH/07 There was a bug in the dovecot authenticator such that the value of
913 $auth1 could be overwritten, and so not correctly preserved, after a
914 successful authentication. This usually meant that the value preserved by
915 the server_setid option was incorrect.
917 PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
919 PH/09 Installed PCRE release 7.0.
921 PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
922 run for batched SMTP input. It is now run at the start of every message
923 in the batch. While fixing this I discovered that the process information
924 (output by running exiwhat) was not always getting set for -bs and -bS
925 input. This is fixed, and it now also says "batched" for BSMTP.
927 PH/11 Added control=no_pipelining.
929 PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
930 patch, slightly modified), and move the expansion of helo_data till after
931 the connection is made in the smtp transport (so it can use these
934 PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
936 PH/14 Added log_selector = +pid.
938 PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
940 PH/16 Add ${if forany and ${if forall.
942 PH/17 Added dsn_from option to vary the From: line in DSNs.
944 PH/18 Flush SMTP output before performing a callout, unless control =
945 no_callout_flush is set.
947 PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
948 was true (the default) a successful delivery failed to delete the retry
949 item, thus causing premature timeout of the address. The bug is now
952 PH/20 Added hosts_avoid_pipelining to the smtp transport.
954 PH/21 Long custom messages for fakedefer and fakereject are now split up
955 into multiline reponses in the same way that messages for "deny" and
956 other ACL rejections are.
958 PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
959 with slight modification.
961 PH/23 Applied sieve patches from the maintainer "tracking the latest notify
962 draft, changing the syntax and factoring some duplicate code".
964 PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
965 for deliveries of the second and subsequent messages over the same SMTP
968 PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
969 ${reduce, with only minor "tidies".
971 SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
973 PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
974 expansion side effects.
976 PH/27 When a message times out after an over-quota error from an Exim-imposed
977 quota, the bounce message says "mailbox is full". This message was not
978 being given when it was a system quota that was exceeded. It now should
981 MH/03 Made $recipients available in local_scan(). local_scan() already has
982 better access to the recipient list through recipients_list[], but
983 $recipients can be useful in postmaster-provided expansion strings.
985 PH/28 The $smtp_command and $smtp_command_argument variables were not correct
986 in the case of a MAIL command with additional options following the
987 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
988 were accidentally chopped off.
990 PH/29 SMTP synchronization checks are implemented when a command is read -
991 there is a check that no more input is waiting when there shouldn't be
992 any. However, for some commands, a delay in an ACL can mean that it is
993 some time before the response is written. In this time, more input might
994 arrive, invalidly. So now there are extra checks after an ACL has run for
995 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
996 pipelining has not been advertised.
998 PH/30 MH's patch to allow iscntrl() characters to be list separators.
1000 PH/31 Unlike :fail:, a custom message specified with :defer: was not being
1001 returned in the SMTP response when smtp_return_error_details was false.
1002 This has been fixed.
1004 PH/32 Change the Dovecot authenticator to use read() and write() on the socket
1005 instead of the C I/O that was originally supplied, because problems were
1006 reported on Solaris.
1008 PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
1009 Exim which did not show up earlier: it was assuming that a call to
1010 SSL_CTX_set_info_callback() might give an error value. In fact, there is
1011 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
1012 was a macro that became an assignment, so it seemed to work. This has
1013 changed to a proper function call with a void return, hence the compile
1014 error. Exim's code has been fixed.
1016 PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
1019 PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
1021 PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
1023 PH/37 If a message is not accepted after it has had an id assigned (e.g.
1024 because it turns out to be too big or there is a timeout) there is no
1025 "Completed" line in the log. When some messages of this type were
1026 selected by exigrep, they were listed as "not completed". Others were
1027 picked up by some special patterns. I have improved the selection
1028 criteria to be more general.
1030 PH/38 The host_find_failed option in the manualroute router can now be set
1031 to "ignore", to completely ignore a host whose IP address cannot be
1032 found. If all hosts are ignored, the behaviour is controlled by the new
1033 host_all_ignored option.
1035 PH/39 In a list of hosts for manualroute, if one item (either because of multi-
1036 homing or because of multiple MX records with /mx) generated more than
1037 one IP address, and the following item turned out to be the local host,
1038 all the secondary addresses of the first item were incorrectly removed
1039 from the list, along with the local host and any following hosts (which
1040 is what is supposed to happen).
1042 PH/40 When Exim receives a message, it writes the login name, uid, and gid of
1043 whoever called Exim into the -H file. In the case of the daemon it was
1044 behaving confusingly. When first started, it used values for whoever
1045 started the daemon, but after a SIGHUP it used the Exim user (because it
1046 calls itself on a restart). I have changed the code so that it now always
1049 PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
1050 message are rejected with the same error (e.g. no authentication or bad
1051 sender address), and a DATA command is nevertheless sent (as can happen
1052 with PIPELINING or a stupid MUA), the error message that was given to the
1053 RCPT commands is included in the rejection of the DATA command. This is
1054 intended to be helpful for MUAs that show only the final error to their
1057 PH/42 Another patch from the Sieve maintainer.
1059 SC/02 Eximstats - Differentiate between permanent and temporary rejects.
1060 Eximstats - Fixed some broken HTML links and added missing column headers
1062 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
1063 columns for Rejects, Temp Rejects, Ham, and Spam rows.
1065 SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
1067 PH/43 Yet another patch from the Sieve maintainer.
1069 PH/44 I found a way to check for a TCP/IP connection going away before sending
1070 the response to the final '.' that terminates a message, but only in the
1071 case where the client has not sent further data following the '.'
1072 (unfortunately, this is allowed). However, in many cases there won't be
1073 any further data because there won't be any more messages to send. A call
1074 to select() can be used: if it shows that the input is "ready", there is
1075 either input waiting, or the socket has been closed. An attempt to read
1076 the next input character can distinguish the two cases. Previously, Exim
1077 would have sent an OK response which the client would never have see.
1078 This could lead to message repetition. This fix should cure that, at
1079 least in a lot of common cases.
1081 PH/45 Do not advertise STARTTLS in response to HELP unless it would be
1082 advertised in response to EHLO.
1088 PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
1089 fixed by 4.65/MH/01 (is this a record?) are fixed:
1091 (i) An empty string was always treated as zero by the numeric comparison
1092 operators. This behaviour has been restored.
1094 (ii) It is documented that the numeric comparison operators always treat
1095 their arguments as decimal numbers. This was broken in that numbers
1096 starting with 0 were being interpreted as octal.
1098 While fixing these problems I realized that there was another issue that
1099 hadn't been noticed. Values of message_size_limit (both the global option
1100 and the transport option) were treated as octal if they started with 0.
1101 The documentation was vague. These values are now always treated as
1102 decimal, and I will make that clear in the documentation.
1108 TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
1109 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
1112 MH/01 Don't check that the operands of numeric comparison operators are
1113 integers when their expansion is in "skipping" mode (fixes bug
1114 introduced by 4.64-PH/07).
1116 PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
1117 child addresses, Exim now panics and dies. Previously, because the count
1118 is held in a short int, deliveries were likely to be lost. As such a
1119 large number of recipients for a single message is ridiculous
1120 (performance will be very, very poor), I have chosen to impose a limit
1121 rather than extend the field.
1127 TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
1128 leftover -K file (the existence of which was triggered by #402).
1129 While we were at it, introduced process PID as part of the -K
1130 filename. This should rule out race conditions when creating
1133 TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
1134 processing considerably. Previous code took too long for large mails,
1135 triggering a timeout which in turn triggers #401.
1137 TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
1138 in the DK code in transports.c. sendfile() is not really portable,
1139 hence the _LINUX specificness.
1141 TF/01 In the add_headers option to the mail command in an Exim filter,
1142 there was a bug that Exim would claim a syntax error in any
1143 header after the first one which had an odd number of characters
1146 PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
1147 callout verification, Exim cached a "reject" for the entire domain. This
1148 is correct for most verifications, but it is not correct for a recipient
1149 verification with use_sender or use_postmaster set, because in that case
1150 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
1151 case of MAIL FROM:<> rejection from other early rejections (e.g.
1152 rejection of HELO). When verifying a recipient using a non-null MAIL
1153 address, the cache is ignored if it shows MAIL FROM:<> rejection.
1154 Whatever the result of the callout, the value of the domain cache is
1155 left unchanged (for any other kind of callout, getting as far as trying
1156 RCPT means that the domain itself is ok).
1158 PH/02 Tidied a number of unused variable and signed/unsigned warnings that
1161 PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1162 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1163 session, the daemon ignores ECONNECT errors and logs others; it now
1164 ignores EPIPE as well.
1166 PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1167 (quoted-printable decoding).
1169 PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
1170 later the small subsequent patch to fix an introduced bug.
1172 PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1174 PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1176 PH/08 An error is now given if message_size_limit is specified negative.
1178 PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
1179 to be given (somewhat) arbitrary names.
1181 JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1184 JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1185 miscellaneous code fixes
1187 PH/10 Added the log_reject_target ACL modifier to specify where to log
1190 PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1191 hostname. This is wrong, because it relates to the incoming message (and
1192 probably the interface on which it is arriving) and not to the outgoing
1193 callout (which could be using a different interface). This has been
1194 changed to use the value of the helo_data option from the smtp transport
1195 instead - this is what is used when a message is actually being sent. If
1196 there is no remote transport (possible with a router that sets up host
1197 addresses), $smtp_active_hostname is used.
1199 PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
1200 tweaks were necessary in order to get it to work (see also 21 below):
1201 (a) The code assumed that strncpy() returns a negative number on buffer
1202 overflow, which isn't the case. Replaced with Exim's string_format()
1204 (b) There were several signed/unsigned issues. I just did the minimum
1205 hacking in of casts. There is scope for a larger refactoring.
1206 (c) The code used strcasecmp() which is not a standard C function.
1207 Replaced with Exim's strcmpic() function.
1208 (d) The code set only $1; it now sets $auth1 as well.
1209 (e) A simple test gave the error "authentication client didn't specify
1210 service in request". It would seem that Dovecot has changed its
1211 interface. Fortunately there's a specification; I followed it and
1212 changed what the client sends and it appears to be working now.
1214 PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1217 PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1218 address A is aliased to B and C, where B exists and C does not. Without
1219 -v the output is "A verified" because verification stops after a
1220 successful redirection if more than one address is generated. However,
1221 with -v the child addresses are also verified. Exim was outputting "A
1222 failed to verify" and then showing the successful verification for C,
1223 with its parentage. It now outputs "B failed to verify", showing B's
1224 parentage before showing the successful verification of C.
1226 PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1227 look up a TXT record in a specific list after matching in a combined
1230 PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1231 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1232 they consult the DNS. I had assumed they would set it the way they
1233 wanted; and indeed my experiments on Linux seem to show that in some
1234 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1235 To be on the safe side, however, I have now made the interface to
1236 host_find_byname() similar to host_find_bydns(), with an argument
1237 containing the DNS resolver options. The host_find_byname() function now
1238 sets these options at its start, just as host_find_bydns() does. The smtp
1239 transport options dns_qualify_single and dns_search_parents are passed to
1240 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1241 of host_find_byname() use the default settings of RES_DEFNAMES
1242 (qualify_single) but not RES_DNSRCH (search_parents).
1244 PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1245 spool_read_header() do less string testing, by means of a preliminary
1246 switch on the second character of optional "-foo" lines. (This is
1247 overdue, caused by the large number of possibilities that now exist.
1248 Originally there were few.) While I was there, I also converted the
1249 str(n)cmp tests so they don't re-test the leading "-" and the first
1250 character, in the hope this might squeeze out yet more improvement.
1252 PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1253 flag allowing group syntax was set by the header_syntax check but not
1254 turned off, possible causing trouble later; (2) The flag was not being
1255 set at all for the header_verify test, causing "group"-style headers to
1256 be rejected. I have now set it in this case, and also caused header_
1257 verify to ignore an empty address taken from a group. While doing this, I
1258 came across some other cases where the code for allowing group syntax
1259 while scanning a header line wasn't quite right (mostly, not resetting
1260 the flag correctly in the right place). These bugs could have caused
1261 trouble for malformed header lines. I hope it is now all correct.
1263 PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1264 with the "reply" argument non-NULL. The code, however (which originally
1265 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1266 but it didn't always do it. This confused somebody who was copying the
1267 code for some other use. I have removed all the tests.
1269 PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1270 feature that was used to support insecure browsers during the U.S. crypto
1271 embargo. It requires special client support, and Exim is probably the
1272 only MTA that supported it -- and would never use it because real RSA is
1273 always available. This code has been removed, because it had the bad
1274 effect of slowing Exim down by computing (never used) parameters for the
1275 RSA_EXPORT functionality.
1277 PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1278 authenticator to fail if there's a tab character in the incoming data
1279 (there should never be unless someone is messing about, as it's supposed
1280 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1281 if the connection is using TLS or if the remote IP is the same as the
1282 local IP, and the "valid-client-cert option" if a client certificate has
1285 PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
1286 authenticators. This can be used for authorization after authentication
1287 succeeds. (In the case of plaintext, it servers for both authentication
1290 PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1291 if any retry times were supplied.
1293 PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1294 connection, where there is no client IP address to check. In this
1295 situation, the verify now always succeeds.
1297 PH/25 Applied John Jetmore's -Mset patch.
1299 PH/26 Added -bem to be like -Mset, but loading a message from a file.
1301 PH/27 In a string expansion for a processed (not raw) header when multiple
1302 headers of the same name were present, leading whitespace was being
1303 removed from all of them, but trailing whitespace was being removed only
1304 from the last one. Now trailing whitespace is removed from each header
1305 before concatenation. Completely empty headers in a concatenation (as
1306 before) are ignored.
1308 PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1309 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1311 PH/29 [Removed. This was a change that I later backed out, and forgot to
1312 correct the ChangeLog entry (that I had efficiently created) before
1313 committing the later change.]
1315 PH/30 Exim was sometimes attempting to deliver messages that had suffered
1316 address errors (4xx response to RCPT) over the same connection as other
1317 messages routed to the same hosts. Such deliveries are always "forced",
1318 so retry times are not inspected. This resulted in far too many retries
1319 for the affected addresses. The effect occurred only when there were more
1320 hosts than the hosts_max_try setting in the smtp transport when it had
1321 the 4xx errors. Those hosts that it had tried were not added to the list
1322 of hosts for which the message was waiting, so if all were tried, there
1323 was no problem. Two fixes have been applied:
1325 (i) If there are any address or message errors in an SMTP delivery, none
1326 of the hosts (tried or untried) are now added to the list of hosts
1327 for which the message is waiting, so the message should not be a
1328 candidate for sending over the same connection that was used for a
1329 successful delivery of some other message. This seems entirely
1330 reasonable: after all the message is NOT "waiting for some host".
1331 This is so "obvious" that I'm not sure why it wasn't done
1332 previously. Hope I haven't missed anything, but it can't do any
1333 harm, as the worst effect is to miss an optimization.
1335 (ii) If, despite (i), such a delivery is accidentally attempted, the
1336 routing retry time is respected, so at least it doesn't keep
1337 hammering the server.
1339 PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1340 in ${readsocket because some servers need this prod.
1342 PH/32 Added some extra debug output when updating a wait-xxx database.
1344 PH/33 The hint "could be header name not terminated by colon", which has been
1345 given for certain expansion errors for a long time, was not being given
1346 for the ${if def:h_colon_omitted{... case.
1348 PH/34 The spec says: "With one important exception, whenever a domain list is
1349 being scanned, $domain contains the subject domain." There was at least
1350 one case where this was not true.
1352 PH/35 The error "getsockname() failed: connection reset by peer" was being
1353 written to the panic log as well as the main log, but it isn't really
1354 panic-worthy as it just means the connection died rather early on. I have
1355 removed the panic log writing for the ECONNRESET error when getsockname()
1358 PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1359 runs only) independently of the message's sender address. This meant
1360 that, if the 4xx error was in fact related to the sender, a different
1361 message to the same recipient with a different sender could confuse
1362 things. In particualar, this can happen when sending to a greylisting
1363 server, but other circumstances could also provoke similar problems.
1364 I have changed the default so that the retry time for these errors is now
1365 based a combination of the sender and recipient addresses. This change
1366 can be overridden by setting address_retry_include_sender=false in the
1369 PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1370 remote server are returned as part of bounce messages. This was not
1371 happening for LMTP over a pipe (the lmtp transport), but now it is the
1372 same for both kinds of LMTP.
1374 PH/38 Despite being documented as not happening, Exim was rewriting addresses
1375 in header lines that were in fact CNAMEs. This is no longer the case.
1377 PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1378 and queue runs started by the daemon processed all messages. This has
1379 been fixed so that -R and -S can now usefully be given with -q<time>.
1381 PH/40 Import PCRE release 6.7 (fixes some bugs).
1383 PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1385 PH/42 Give an error if -q is specified more than once.
1387 PH/43 Renamed the variables $interface_address and $interface_port as
1388 $received_ip_address and $received_port, to make it clear that these
1389 values apply to message reception, and not to the outgoing interface when
1390 a message is delivered. (The old names remain recognized, of course.)
1392 PH/44 There was no timeout on the connect() call when using a Unix domain
1393 socket in the ${readsocket expansion. There now is.
1395 PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1396 be meaningful with "accept".
1398 SC/01 Eximstats V1.43
1399 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1401 SC/02 Eximstats V1.44
1402 Use a glob alias rather than an array ref in the generated
1403 parser. This improves both readability and performance.
1405 SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1406 Collect SpamAssassin and rejection statistics.
1407 Don't display local sender or destination tables unless
1408 there is data to show.
1409 Added average volumes into the top table text output.
1411 SC/04 Eximstats V1.46
1412 Collect data on the number of addresses (recipients)
1413 as well as the number of messages.
1415 SC/05 Eximstats V1.47
1416 Added 'Message too big' to the list of mail rejection
1417 reasons (thanks to Marco Gaiarin).
1419 SC/06 Eximstats V1.48
1420 Mainlog lines which have GMT offsets and are too short to
1421 have a flag are now skipped.
1423 SC/07 Eximstats V1.49 (Alain Williams)
1424 Added the -emptyok flag.
1426 SC/08 Eximstats V1.50
1427 Fixes for obtaining the IP address from reject messages.
1429 JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1430 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1431 whitesspace changes from 4.64-PH/27
1433 JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1436 JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1437 are found, allow negative numbers in numeric criteria)
1439 JJ/06 exipick.20061117.2, added new $message_body_missing variable
1441 JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1442 to match changes made in 4.64-PH/43
1444 PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1446 PH/47 Put in an explicit test for a DNS lookup of an address record where the
1447 "domain" is actually an IP address, and force a failure. This locks out
1448 those revolvers/nameservers that support "A-for-A" lookups, in
1449 contravention of the specifications.
1451 PH/48 When a host name was looked up from an IP address, and the subsequent
1452 forward lookup of the name timed out, the host name was left in
1453 $sender_host_name, contrary to the specification.
1455 PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1456 restricted to single-key lookups, Exim was not diagnosing an error if
1457 * or *@ was used with a query-style lookup.
1459 PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1461 MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1462 long ago, but noone interested enough thought of it. Let's just say that
1463 the "1.1" means that there are some new functions that weren't there at
1464 some point in the past.
1466 PH/51 Error processing for expansion failure of helo_data from an smtp
1467 transport during callout processing was broken.
1469 PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1470 tested/used via the -bh/-bhc/-bs options.
1472 PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1473 bug, fixed in subsequent PCRE releases).
1475 PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1476 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1478 PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1484 SC/01 Use a glob alias rather than an array ref in eximstats generated
1485 parser. This improves both readability and performance.
1487 SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1488 Don't display local sender or destination tables in eximstats unless
1489 there is data to show.
1490 Added average volumes into the eximstats top table text output.
1492 SC/03 Collect data on the number of addresses (recipients) as well
1493 as the number of messages in eximstats.
1495 TF/01 Correct an error in the documentation for the redirect router. Exim
1496 does (usually) call initgroups() when daemonizing.
1498 TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1499 with consistent privilege compared to when running as a daemon.
1501 TF/03 Note in the spec that $authenticated_id is not set for local
1502 submissions from trusted users.
1504 TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1505 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1507 TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1508 by adding some example configuration directives to the default
1509 configuration file. A little bit of work is required to uncomment the
1510 directives and define how usernames and passwords are checked, but
1511 there is now a framework to start from.
1513 PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1514 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1515 without this. I don't know how relevant this is to other LDAP libraries.
1517 PH/02 Add the verb name to the "unknown ACL verb" error.
1519 PH/03 Magnus Holmgren's patch for filter_prepend_home.
1521 PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1523 PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1524 directory not expanded when it should be if an expanded home directory
1525 was set for the address (which is overridden by the transport).
1527 PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1530 PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1531 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1532 because it is too late at that time, and has no effect.
1534 PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1535 security issue with \' (bugzilla #107). I could not use the
1536 PQescapeStringConn() function, because it needs a PGconn value as one of
1539 PH/08 When testing addresses using -bt, indicate those final addresses that
1540 are duplicates that would not cause an additional delivery. At least one
1541 person was confused, thinking that -bt output corresponded to deliveries.
1542 (Suppressing duplicates isn't a good idea as you lose the information
1543 about possibly different redirections that led to the duplicates.)
1545 PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1546 systems where poll() doesn't work, in particular OS X.
1548 PH/10 Added more information to debugging output for retry time not reached.
1550 PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1551 operations in malware.c.
1553 PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1556 PH/13 If write_rejectlog was set false when logging was sent to syslog with
1557 syslog_duplication set false, log lines that would normally be written
1558 both the the main log and to the reject log were not written to syslog at
1561 PH/14 In the default configuration, change the use of "message" in ACL warn
1562 statements to "add_header".
1564 PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1565 not followed by a command (e.g. "seen endif").
1567 PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1568 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1571 PH/17 Added extra conditions to the default value of delay_warning_condition
1575 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1576 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1577 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
1580 The Auto-Submitted: and various List- headers are standardised, whereas I
1581 don't think Precedence: ever was.
1583 PH/18 Refactored debugging code in route_finduser() to show more information,
1584 in particular, the error code if getpwnam() issues one.
1586 PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1587 This is apparently needed in addition to the PH/07 change above to avoid
1588 any possible encoding problems.
1590 PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1591 but not after initializing Perl.
1593 PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1594 output them only if debugging. By default they are written stderr,
1595 apparently, which is not desirable.
1597 PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1600 JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1603 JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1605 PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1606 authenticated or an ident call has been made. Suppress the default
1607 values for $authenticated_id and $authenticated_sender (but permit -oMai
1608 and -oMas) when testing with -bh.
1610 PH/24 Re-jigged the order of the tests in the default configuration so that the
1611 tests for valid domains and recipients precede the DNS black list and CSA
1612 tests, on the grounds that those ones are more expensive.
1614 PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1615 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1616 This bug exists in every version of Exim that I still have, right back to
1619 PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1620 However, an attempt to turn on case-sensitivity in a regex key by
1621 including (?-i) didn't work because the subject string was already
1622 lowercased, and the effects were non-intuitive. It turns out that a
1623 one-line patch can be used to allow (?-i) to work as expected.
1629 TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1630 other effects) broke the use of negated acl sub-conditions.
1632 PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1635 PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1636 "Deny" causes Exim to reject the incoming connection with a 554 error.
1637 Unfortunately, if there is a major crisis, such as a disk failure,
1638 tcp-wrappers gives "deny", whereas what one would like would be some
1639 kind of temporary error. A kludge has been added to help with this.
1640 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1641 554 error is used if errno is still zero or contains ENOENT (which occurs
1642 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1645 PH/03 Add -lutil to the default FreeBSD LIBS setting.
1647 PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1648 errors. Otherwise a message that provokes a temporary error (when other
1649 messages do not) can cause a whole host to time out.
1651 PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1652 addresses were routed directly to files or pipes from a redirect router.
1653 File deliveries just didn't batch; pipe deliveries might have suffered
1656 PH/06 A failure to get a lock for a hints database would erroneously always say
1657 "Failed to get write lock", even when it was really a read lock.
1659 PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1660 of 0600. This has been changed to use the value of the lockfile_mode
1661 option (which defaults to 0600).
1663 PH/08 Applied small patch from the Sieve maintainer.
1665 PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1666 folder from quota calculations, a direct delivery into this folder messed
1667 up the contents of the maildirsize file. This was because the regex was
1668 used only to exclude .Trash (or whatever) when the size of the mailbox
1669 was calculated. There was no check that a delivery was happening into an
1670 excluded directory. This bug has been fixed by ignoring all quota
1671 processing for deliveries into excluded directories.
1673 PH/10 Added the maildirfolder_create_regex option to appendfile.
1679 PH/01 The code for finding all the local interface addresses on a FreeBSD
1680 system running IPv6 was broken. This may well have applied to all BSD
1681 systems, as well as to others that have similar system calls. The broken
1682 code found IPv4 interfaces correctly, but gave incorrect values for the
1683 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1684 that it would not match correctly against @[] and not recognize the IPv6
1687 PH/02 The ipliteral router was not recognizing addresses of the form user@
1688 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1690 PH/03 Added disable_ipv6.
1692 PH/04 Changed $reply_address to use the raw form of the headers instead of the
1693 decoded form, because it is most often used to construct To: headers
1694 lines in autoreplies, and the decoded form may well be syntactically
1695 invalid. However, $reply_address has leading white space removed, and all
1696 newlines turned into spaces so that the autoreply transport does not
1699 PH/05 If group was specified without a user on a router, and no group or user
1700 was specified on a transport, the group from the router was ignored.
1702 PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1703 for visible compile-time settings that can be used to change these
1704 numbers, for those that want even more. Backwards compatibility with old
1705 spool files has been maintained. However, going back to a previous Exim
1706 release will lost any variables that are in spool files.
1708 PH/07 Two small changes when running in the test harness: increase delay when
1709 passing a TCP/IP connection to a new process, in case the original
1710 process has to generate a bounce, and remove special handling of
1711 127.0.0.2 (sic), which is no longer necessary.
1713 PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1714 be the same on different OS.
1716 PH/09 Moved a debug statement in filter processing to avoid a race problem when
1719 JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1720 whether --show-vars was specified or not
1722 JJ/02 exipick: Added support for new ACL variable spool format introduced
1725 PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1726 syntactically invalid From: or Reply-to: line, and a filter used this to
1727 generate an autoreply, and therefore failed to obtain an address for the
1728 autoreply, Exim could try to deliver to a non-existent relative file
1729 name, causing unrelated and misleading errors. What now happens is that
1730 it logs this as a hard delivery error, but does not attempt to create a
1733 PH/11 The exinext utility has a -C option for testing purposes, but although
1734 the given file was scanned by exinext itself; it wasn't being passed on
1735 when Exim was called.
1737 PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1738 an end-of-file indication when reading a command response.
1740 PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1741 compiled. In many other places in Exim, IPv6 addresses are always
1742 recognized, so I have changed this. It also means that IPv4 domain
1743 literals of the form [IPV4:n.n.n.n] are now always recognized.
1745 PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1746 used if the router is not running as root, for example, when verifying at
1747 ACL time, or when using -bh. The debugging output from this situation was
1748 non-existent - all you got was a failure to exec. I have made two
1751 (a) Failures to set uid/gid, the current directory, or a process leader
1752 in a subprocess such as that created by queryprogram now generate
1753 suitable debugging ouput when -d is set.
1755 (b) The queryprogram router detects when it is not running as root,
1756 outputs suitable debugging information if -d is set, and then runs
1757 the subprocess without attempting to change uid/gid.
1759 PH/15 Minor change to Makefile for building test_host (undocumented testing
1762 PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1763 additional section of a DNS packet that returns MX or SRV records.
1764 Instead, it always explicitly searches for A/AAAA records. This avoids
1765 major problems that occur when a DNS server includes only records of one
1766 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1767 fixed another bug: if SRV records were looked up and the corresponding
1768 address records were *not* found in the additional section, the port
1769 values from the SRV records were lost.
1771 PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1772 using the correct key (the original address) when searching the retry
1773 rules in order to find which one to use for generating the retry hint.
1775 PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1776 adding the default one. Similarly, if it contains a Reply-To: header, the
1777 errors_reply_to option, if set, is not used.
1779 PH/19 When calculating a retry time, Exim used to measure the "time since
1780 failure" by looking at the "first failed" field in the retry record. Now
1781 it does not use this if it is later than than the arrival time of the
1782 message. Instead it uses the arrival time. This makes for better
1783 behaviour in cases where some deliveries succeed, thus re-setting the
1784 "first failed" field. An example is a quota failure for a huge message
1785 when small messages continue to be delivered. Without this change, the
1786 "time since failure" will always be short, possible causing more frequent
1787 delivery attempts for the huge message than are intended.
1788 [Note: This change was subsequently modified - see PH/04 for 4.62.]
1790 PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1791 $1, $2, $3) because the numerical variables can be reset during some
1792 expansion items (e.g. "match"), thereby losing the authentication data.
1794 PH/21 Make -bV show the size of off_t variables so that the test suite can
1795 decide whether to run tests for quotas > 2G.
1797 PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1798 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1799 filecount value is greater than 2G or if a quota value is greater than 2G
1800 on a system where the size of off_t is not greater than 4, a panic error
1803 PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1804 never match. The debug and -bh output now contains an explicit error
1805 message indicating a malformed IPv4 address or mask.
1807 PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1808 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1809 PH/23 above applies.
1811 PH/25 Do not write to syslog when running in the test harness. The only
1812 occasion when this arises is a failure to open the main or panic logs
1813 (for which there is an explicit test).
1815 PH/26 Added the /no_tell option to "control=freeze".
1817 PH/27 If a host name lookup failed very early in a connection, for example, if
1818 the IP address matched host_lookup and the reverse lookup yielded a name
1819 that did not have a forward lookup, an error message of the form "no IP
1820 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1821 could be logged. Now it outputs the IP address instead of "NULL".
1823 PH/28 An enabling patch from MH: add new function child_open_exim2() which
1824 allows the sender and the authenticated sender to be set when
1825 submitting a message from within Exim. Since child_open_exim() is
1826 documented for local_scan(), the new function should be too.
1828 PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1829 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1830 results in an empty string is now treated as unset.
1832 PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1834 PH/31 Added sender_verify_fail logging option.
1836 PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1837 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1838 tidied the source and removed it altogether.
1840 PH/33 When a queue run was abandoned because the load average was too high, a
1841 log line was always written; now it is written only if the queue_run log
1842 selector is set. In addition, the log line for abandonment now contains
1843 information about the queue run such as the pid. This is always present
1844 in "start" and "stop" lines but was omitted from the "abandon" line.
1846 PH/34 Omit spaces between a header name and the colon in the error message that
1847 is given when verify = headers_syntax fails (if there are lots of them,
1848 the message gets confusing).
1850 PH/35 Change the default for dns_check_names_pattern to allow slashes within
1851 names, as there are now some PTR records that contain slashes. This check
1852 is only to protect against broken name servers that fall over on strange
1853 characters, so the fact that it applies to all lookups doesn't matter.
1855 PH/36 Now that the new test suite is complete, we can remove some of the
1856 special code in Exim that was needed for the old test suite. For example,
1857 sorting DNS records because real resolvers return them in an arbitrary
1858 order. The new test suite's fake resolver always returns records in the
1861 PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1862 bounces) except when queue_only is set, to avoid logging races between
1863 the different processes.
1865 PH/38 Panic-die if .include specifies a non-absolute path.
1867 PH/39 A tweak to the "H" retry rule from its user.
1869 JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1870 a label. They prevented compilation on older perls.
1872 JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1873 a warning to be raised on newish perls.
1875 JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1876 on queue. Changes to match documented behaviour of showing count of
1877 messages matching specified criteria.
1879 PH/40 Changed the default ident timeout from 30s to 5s.
1881 PH/41 Added support for the use of login_cap features, on those BSD systems
1882 that have them, for controlling the resources used by pipe deliveries.
1884 PH/42 The content-scanning code uses fopen() to create files in which to put
1885 message data. Previously it was not paying any attention to the mode of
1886 the files. Exim runs with umask(0) because the rest of the code creates
1887 files with open(), and sets the required mode explicitly. Thus, these
1888 files were ending up world-writeable. This was not a big issue, because,
1889 being within the spool directory, they were not world-accessible. I have
1890 created a function called modefopen, which takes an additional mode
1891 argument. It sets umask(777), creates the file, chmods it to the required
1892 mode, then resets the umask. All the relevant calls to fopen() in the
1893 content scanning code have been changed to use this function.
1895 PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1896 to 24 hours. This avoids potential overflow problems when processing G
1897 and H retry rules. I suspect nobody ever tinkers with this value.
1899 PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1901 PH/45 When the plaintext authenticator is running as a client, the server's
1902 challenges are checked to ensure they are valid base64 strings. By
1903 default, the authentication attempt is cancelled if an invalid string is
1904 received. Setting client_ignore_invalid_base64 true ignores these errors.
1905 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1906 they are received. Thus, the responses can be made to depend on the
1907 challenges. If an invalid string is ignored, an empty string is placed in
1910 PH/46 Messages that are created by the autoreply transport now contains a
1911 References: header, in accordance with RFCs 2822 and 3834.
1913 PH/47 Added authenticated_sender_force to the smtp transport.
1915 PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1917 PH/49 Installed latest patch from the Sieve maintainer.
1919 PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1920 was also set, the appendfile transport was unnecessarily scanning a
1921 directory of message files (e.g. for maildir delivery) to find the count
1922 of files (along with the size), even though it did not need this
1923 information. It now does the scan only if it needs to find either the
1924 size of the count of files.
1926 PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1928 PH/52 Two bugs concerned with error handling when the smtp transport is
1931 (i) Exim was not creating retry information for temporary errors given
1932 for individual recipients after the DATA command when the smtp transport
1933 was used in LMTP mode. This meant that they could be retried too
1934 frequently, and not timed out correctly.
1936 (ii) Exim was setting the flag that allows error details to be returned
1937 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1938 recipients that were returned after the DATA command.
1940 PH/53 This is related to PH/52, but is more general: for any failing address,
1941 when detailed error information was permitted to be returned to the
1942 sender, but the error was temporary, then after the final timeout, only
1943 "retry timeout exceeded" was returned. Now it returns the full error as
1944 well as "retry timeout exceeded".
1946 PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1947 do this, and (what is worse) MTAs that accept it.
1949 PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1950 will now be deprecated.
1952 PH/56 New os.c-cygwin from the Cygwin maintainer.
1954 JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1955 formats (previously only available in exim formats via -bpr, -bpru,
1956 and -bpra. Now also available in native and exiqgrep formats)
1958 JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1959 with very large, slow to parse queues
1961 JJ/08 exipick: added ! as generic prefix to negate any criteria format
1963 JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1965 PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1966 responses to authentication challenges, though it was showing the
1967 challenges; (ii) I've removed the CR characters from the debug output for
1970 PH/58 Allow for the insertion of a newline as well as a space when a string
1971 is turned into more than one encoded-word during RFC 2047 encoding. The
1972 Sieve code now uses this.
1974 PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1975 data_4xx, lost_connection, tls_required.
1977 PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1978 message was being sent as an SMTP response.
1980 PH/61 Add -l and -k options to exicyclog.
1982 PH/62 When verifying, if an address was redirected to one new address, so that
1983 verification continued, and the new address failed or deferred after
1984 having set something in $address_data, the value of $address_data was not
1985 passed back to the ACL. This was different to the case when no
1986 redirection occurred. The value is now passed back in both cases.
1988 PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1989 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1990 use login_cap.h, so on its own it isn't the distinguishing feature. The
1991 new name refers directly to the setclassresources() function.
1993 PH/65 Added configuration files for NetBSD3.
1995 PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1997 PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1998 is preferred over IPv4.
2000 PH/68 The bounce_return_message and bounce_return_body options were not being
2001 honoured for bounces generated during the reception of non-SMTP messages.
2002 In particular, this applied to messages rejected by the ACL. This bug has
2003 been fixed. However, if bounce_return_message is true and bounce_return_
2004 body is false, the headers that are returned for a non-SMTP message
2005 include only those that have been read before the error was detected.
2006 (In the case of an ACL rejection, they have all been read.)
2008 PH/69 The HTML version of the specification is now built in a directory called
2009 spec_html instead of spec.html, because the latter looks like a path with
2010 a MIME-type, and this confuses some software.
2012 PH/70 Catch two compiler warnings in sieve.c.
2014 PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
2015 function verify_get_ident() calls ip_connect() to connect a socket, but
2016 if the "connect()" function timed out, ip_connect() used to close the
2017 socket. However, verify_get_ident() also closes the socket later, and in
2018 between Exim writes to the log, which may get opened at this point. When
2019 the socket was closed in ip_connect(), the log could get the same file
2020 descriptor number as the socket. This naturally causes chaos. The fix is
2021 not to close the socket in ip_connect(); the socket should be closed by
2022 the function that creates it. There was only one place in the code where
2023 this was missing, in the iplookup router, which I don't think anybody now
2024 uses, but I've fixed it anyway.
2026 PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
2027 well as to direct DNS lookups. Otherwise the handling of names in host
2028 lists is inconsistent and therefore confusing.
2034 PH/01 Two changes to the default runtime configuration:
2036 (1) Move the checks for relay_from_hosts and authenticated clients from
2037 after to before the (commented out) DNS black list checks.
2039 (2) Add control=submission to the relay_from_hosts and authenticated
2040 clients checks, on the grounds that messages accepted by these
2041 statements are most likely to be submissions.
2043 PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
2045 (1) Generate an error if the third argument for the ${prvs expansion is
2048 (2) Treat a missing third argument of ${prvscheck as if it were an empty
2051 (3) Reset the variables that are obtained from the first argument of
2052 ${prvscheck and used in the second argument before leaving the code,
2053 because their memory is reclaimed, so using them afterwards may do
2056 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
2057 one (it's much easier than Tom thought :-).
2059 (5) Because of (4), we can now allow for the use of $prvscheck_result
2060 inside the third argument.
2062 PH/03 For some reason, the default setting of PATH when running a command from
2063 a pipe transport was just "/usr/bin". I have changed it to
2066 PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
2067 anything to be listed in the output from -bV.
2069 PH/05 When a filter generated an autoreply, the entire To: header line was
2070 quoted in the delivery log line, like this:
2072 => >A.N.Other <ano@some.domain> <original@ddress> ...
2074 This has been changed so that it extracts the operative address. There
2075 may be more than one such address. If so, they are comma-separated, like
2078 => >ano@some.domain,ona@other.domain <original@ddress> ...
2080 PH/06 When a client host used a correct literal IP address in a HELO or EHLO
2081 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
2082 not being looked up in the rDNS to get a host name, Exim was showing the
2083 IP address twice in Received: lines, even though the IP addresses were
2084 identical. For example:
2086 Received: from [1.2.3.4] (helo=[1.2.3.4])
2088 However, if the real host name was known, it was omitting the HELO data
2089 if it matched the actual IP address. This has been tidied up so that it
2090 doesn't show the same IP address twice.
2092 PH/07 When both +timestamp and +memory debugging was on, the value given by
2093 $tod_xxx expansions could be wrong, because the tod_stamp() function was
2094 called by the debug printing, thereby overwriting the timestamp buffer.
2095 Debugging no longer uses the tod_stamp() function when +timestamp is set.
2097 PH/08 When the original message was included in an autoreply transport, it
2098 always said "this is a copy of the message, including all the headers",
2099 even if body_only or headers_only was set. It now gives an appropriate
2102 PH/09 Applied a patch from the Sieve maintainer which:
2104 o fixes some comments
2105 o adds the (disabled) notify extension core
2106 o adds some debug output for the result of if/elsif tests
2107 o points to the current vacation draft in the documentation
2108 and documents the missing references header update
2112 o fixes a bug in processing the envelope test (when testing
2113 multiple envelope elements, the last element determinted the
2116 PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
2117 Electronic Mail") by including:
2119 Auto-submitted: auto-generated
2121 in the messages that it generates (bounce messages and others, such as
2122 warnings). In the case of bounce messages for non-SMTP mesages, there was
2123 also a typo: it was using "Auto_submitted" (underscore instead of
2124 hyphen). Since every message generated by Exim is necessarily in response
2125 to another message, thes have all been changed to:
2127 Auto-Submitted: auto-replied
2129 in accordance with these statements in the RFC:
2131 The auto-replied keyword:
2133 - SHOULD be used on messages sent in direct response to another
2134 message by an automatic process,
2136 - MUST NOT be used on manually-generated messages,
2138 - MAY be used on Delivery Status Notifications (DSNs) and Message
2139 Disposition Notifications (MDNs),
2141 - MUST NOT be used on messages generated by automatic or periodic
2142 processes, except for messages which are automatic responses to
2145 PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
2146 to the default Received: header definition.
2148 PH/12 Added log selector acl_warn_skipped (default on).
2150 PH/13 After a successful wildlsearch lookup, discard the values of numeric
2151 variables because (a) they are in the wrong storage pool and (b) even if
2152 they were copied, it wouldn't work properly because of the caching.
2154 PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
2155 checking when decoding. Apparently there are clients that generate
2156 overlong encoded strings. Why am I not surprised?
2158 PH/15 If the first argument of "${if match_address" was not empty, but did not
2159 contain an "@" character, Exim crashed. Now it writes a panic log message
2160 and treats the condition as false.
2162 PH/16 In autoreply, treat an empty string for "once" the same as unset.
2164 PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2165 extension "envelope-auth". The code is finished and in agreement with
2166 other implementations, but there is no documentation so far and in fact,
2167 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2168 not changing the active code.
2170 Print executed "if" and "elsif" statements when debugging is used. This
2171 helps a great deal to understand what a filter does.
2173 Document more things not specified clearly in RFC3028. I had all this
2174 sorted out, when out of a sudden new issues came to my mind. Oops."
2176 PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2179 PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2180 canonical form (as documented). However, after a host name lookup from
2181 the IP address, check_host() was doing a simple string comparison with
2182 addresses acquired from the DNS when checking that the found name did
2183 have the original IP as one of its addresses. Since any found IPv6
2184 addresses are likely to be in abbreviated form, the comparison could
2185 fail. Luckily, there already exists a function for doing the comparison
2186 by converting both addresses to binary, so now that is used instead of
2187 the text comparison.
2189 PH/20 There was another similar case to PH/19, when a complete host name was
2190 given in a host list; looking up its IP address could give an abbreviated
2191 form, whereas the current host's name might or might not be abbreviated.
2192 The same fix has been applied.
2198 PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2199 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2202 PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2203 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2205 PH/03 Typo: missing ".o" in src/pcre/Makefile.
2207 PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2208 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2209 Also, for "Auto-Submitted", treat anything other than "no" as
2210 non-personal, in accordance with RFC 3834. (Previously it treated
2211 anything starting "auto-" as non-personal.)
2213 TF/01 The control=submission/name=... option had a problem with syntax
2214 errors if the name included a slash character. The /name= option
2215 now slurps the rest of the string, so it can include any characters
2216 but it must come last in the list of options (after /sender_retain
2219 PH/05 Some modifications to the interface to the fake nameserver for the new
2227 TK/01 Added the "success_on_redirect" address verification option. See
2228 NewStuff for rationale and an example.
2230 PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2232 PH/02 Patch to exigrep to allow it to work on syslog lines.
2234 PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2235 fread() to skip over the body file's header line, because in Cygwin the
2236 header line is locked and is inaccessible.
2238 PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2239 co-exist for some time) to make it clear that it is the Exim ID that is
2240 referenced, not the Message-ID: header line.
2242 PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2243 string_format() function, because snprintf() does not exist on all
2246 PH/06 The use of forbid_filter_existstest now also locks out the use of the
2247 ${stat: expansion item.
2249 PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2250 protocol synchronization error", to keep the pedants happy.
2252 PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2253 well as for IRIX systems, when gcc is being used. See the host.c source
2256 PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2258 PH/10 Named domain lists were not working if used in a queue_smtp_domains
2261 PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2262 transport and to the smtp transport in LMTP mode.
2264 TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2266 PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2267 run a filter in a subprocess. This could lead to confusion in subsequent
2268 lookups in the parent process. There should also be a search_tidyup() at
2269 the end of the subprocess.
2271 PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2272 only if the host matched helo_try_verify_hosts, which caused the
2273 verification to occur when the EHLO/HELO command was issued. The ACL just
2274 tested the remembered result. Now, if a previous verification attempt has
2275 not happened, "verify = helo" does it there and then.
2277 JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2279 TK/03 Fix log output including CR from clamd.
2281 PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2282 exist provoked a memory error which could cause a segfault.
2284 PH/15 Installed PCRE 6.2
2286 PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2288 PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2289 of the problem. Specifically, suggested +O2 rather than +O1 for the
2292 PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2294 PH/20 If a delivery was routed to a non-standard port by means of an SRV
2295 record, the port was not correctly logged when the outgoing_port log
2296 selector was set (it logged the transort's default port).
2298 PH/21 Added support for host-specific ports to manualroute, queryprogram,
2299 fallback_hosts, and "hosts" in the smtp transport.
2301 PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2302 host errors such as "Connection refused".
2304 PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2305 authentication with radiusclient 0.4.9:
2307 - Error returned from rc_read_config was caught wrongly
2308 - Username/password not passed on to radius server due to wrong length.
2310 The presumption is that some radiusclient API changes for 4.51/PH/17
2311 were not taken care of correctly. The code is still untested by me (my
2312 Linux distribution still has 0.3.2 of radiusclient), but it was
2313 contributed by a Radius user.
2315 PH/24 When doing a callout, the value of $domain wasn't set correctly when
2316 expanding the "port" option of the smtp transport.
2318 TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2319 while reading a MIME header. Thanks to Tom Hughes for a patch.
2321 PH/24 Include config.h inside local_scan.h so that configuration settings are
2324 PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2325 that in an ACL for RCPT (for example), you can examine exactly what was
2328 PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2329 commands, but it was not correctly comparing the address with the actual
2330 client host address. Thus, it would show the EHLO address in Received:
2331 header lines when this was not necessary.
2333 PH/27 Added the % operator to ${eval:}.
2335 PH/28 Exim tries to create and chdir to its spool directory when it starts;
2336 it should be ignoring failures (because with -C, for example, it has lost
2337 privilege). It wasn't ignoring creation failures other than "already
2340 PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2343 PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2344 because an input line was too long, either on its own, or by virtue of
2345 too many continuations, the temporary file was not being removed, and the
2346 return code was incorrect.
2348 PH/31 Missing "BOOL" in function definition in filtertest.c.
2350 PH/32 Applied Sieve patches from the maintainer.
2352 TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2354 PH/33 Added "verify = not_blind".
2356 PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2357 Local/Makefile (with some defaults set). These are used in built scripts
2358 such as exicyclog, but they have never been used in the exim_install
2359 script (though there are many overriding facilities there). I have
2360 arranged that the exim_install script now takes note of these two
2363 PH/35 Installed configuration files for Dragonfly.
2365 PH/36 When a locally submitted message by a trusted user did not contain a
2366 From: header, and the sender address was obtained from -f or from an SMTP
2367 MAIL command, and the trusted user did not use -F to supply a sender
2368 name, $originator_name was incorrectly used when constructing a From:
2369 header. Furthermore, $originator_name was used for submission mode
2370 messages from external hosts without From: headers in a similar way,
2371 which is clearly wrong.
2373 PH/37 Added control=suppress_local_fixups.
2375 PH/38 When log_selector = +received_sender was set, and the addition of the
2376 sender made the log line's construction buffer exactly full, or one byte
2377 less than full, an overflow happened when the terminating "\n" was
2380 PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2381 when the result of a list match is failure because a DNS lookup failed.
2383 PH/40 RM_COMMAND is now used in the building process.
2385 PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2386 the "build-* directories that it finds.
2388 PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2389 address in a domain literal was a prefix of an interface address.
2391 PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2392 when verifying a sender address, unless rewrite_headers is false.
2394 PH/44 Wrote a long comment about why errors_to addresses are verified as
2395 recipients, not senders.
2397 TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2398 the ratelimit ACL was added.
2400 PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2402 PH/46 Added extra information about PostgreSQL errors to the error string.
2404 PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2405 avoiding the need to install special zones in a real server. This is
2406 backwards compatible; if it can't find the fake resolver, it drops back.
2407 Thus, both old and new test suites can be run.
2409 TF/02 Added util/ratelimit.pl
2411 TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2412 clock is set back in time.
2414 TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2415 Candler <B.Candler@pobox.com>.
2417 TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2418 OK for addresses that are the result of redirections.
2420 PH/48 A number of further additions for the benefit of the new test suite,
2421 including a fake gethostbyname() that interfaces to the fake DNS resolver
2424 TF/06 The fix for widen_domains has also been applied to qualify_single and
2425 search_parents which are the other dnslookup options that can cause
2428 PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2431 PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2433 TF/07 Exim produced the error message "an SRV record indicated no SMTP
2434 service" if it encountered an MX record with an empty target hostname.
2435 The message is now "an MX or SRV record indicated no SMTP service".
2437 TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2438 if the DNS of the sending site is misconfigured. This is quite a
2439 common situation. This change restores the behaviour of treating a
2440 helo verification defer as a failure.
2442 PH/51 If self=fail was set on a router, the bounce message did not include the
2443 actual error message.
2449 TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2451 PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2452 command itself ended in error, the underlying message about the transport
2453 filter timeout was being overwritten with the pipe command error. Now the
2454 underlying error message should be appended to the second error message.
2456 TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2458 PH/02 Reduce the amount of output that "make" produces by default. Full output
2459 can still be requested.
2461 PH/03 The warning log line about a condition test deferring for a "warn" verb
2462 was being output only once per connection, rather than after each
2463 occurrence (because it was using the same function as for successful
2464 "warn" verbs). This seems wrong, so I have changed it.
2466 TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2467 it should not have, which might have caused a crash in the right
2468 circumstances, but probably never did.
2470 PH/04 Installed a modified version of Tony Finch's patch to make submission
2471 mode fix the return path as well as the Sender: header line, and to
2472 add a /name= option so that you can make the user's friendly name appear
2475 TF/03 Added the control = fakedefer ACL modifier.
2477 TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2478 Mark Lowes for thorough testing.
2480 TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2482 TK/03 Merged latest SRS patch from Miles Wilton.
2484 PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2485 with the definition in sysexits.h (which is #included earlier).
2486 Fortunately, Exim does not actually use EX_OK. The code used to try to
2487 preserve the sysexits.h value, by assumimg that macro definitions were
2488 scanned for macro replacements. I have been disabused of this notion,
2489 so now the code just undefines EX_OK before #including unistd.h.
2491 PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2492 in the smtp transport. When a block could not be written in a single
2493 write() function, the timeout was being re-applied to each part-write.
2494 This seems wrong - if the receiver was accepting one byte at a time it
2495 would take for ever. The timeout is now adjusted when this happens. It
2496 doesn't have to be particularly precise.
2498 TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2499 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2501 PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2502 without a domain if the check to <postmaster@domain> fails.
2504 SC/01 Eximstats: added -xls and the ability to specify output files
2505 (patch written by Frank Heydlauf).
2507 SC/02 Eximstats: use FileHandles for outputing results.
2509 SC/03 Eximstats: allow any combination of xls, txt, and html output.
2511 SC/04 Eximstats: fixed display of large numbers with -nvr option
2513 SC/05 Eximstats: fixed merging of reports with empty tables.
2515 SC/06 Eximstats: added the -include_original_destination flag
2517 SC/07 Eximstats: removed tabs and trailing whitespace.
2519 TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2521 TK/06 MBOX spool code: Add real "From " MBOX separator line
2522 so the .eml file is really in mbox format (even though
2523 most programs do not really care). Patch from Alex Miller.
2525 TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2526 The latter is generated from $received_to and is only set if the
2527 message has one envelope recipient. SA can use these headers,
2528 obviously out-of-the-box. Patch from Alex Miller.
2530 PH/08 The ${def test on a variable was returning false if the variable's
2531 value was "0", contrary to what the specification has always said!
2532 The result should be true unless the variable is empty.
2534 PH/09 The syntax error of a character other than { following "${if
2535 def:variable_name" (after optional whitespace) was not being diagnosed.
2536 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2537 accidental colon was present, for example, could give incorrect results.
2539 PH/10 Tidied the code in a number of places where the st_size field of a stat()
2540 result is used (not including appendfile, where other changes are about
2543 PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2544 This involved changing a lot of size variables from int to off_t. It
2545 should work with maildirs and everything.
2547 TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2548 spamd dying while we are connected to it.
2550 TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2553 PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2554 function for BDB 4.3.
2556 PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2558 PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2559 the sources for PCRE have been re-arranged and more files are now
2562 PH/15 The code I had for printing potentially long long variables in PH/11
2563 above was not the best (it lost precision). The length of off_t variables
2564 is now inspected at build time, and an appropriate printing format (%ld
2565 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2566 to be "long long int" or "long int". This is needed for the internal
2567 formatting function string_vformat().
2569 PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2570 the configuration file to be ":syslog", then the script "guesses" where
2571 the logs files are, rather than using the compiled in default. In our
2572 case the guess is not the same as the compiled default, so the script
2573 suddenly stopped working when I started to use syslog. The patch checks
2574 to see if log_file_path is "". If so, it attempts to read it from exim
2575 with no configuration file to get the compiled in version, before it
2576 falls back to the previous guessing code."
2578 TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2579 implementing BATV in an Exim configuration. See NewStuff for the gory
2582 PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2583 Makefile that are specific to HP-UX.
2585 PH/18 If the "use_postmaster" option was set for a recipient callout together
2586 with the "random" option, the postmaster address was used as the MAIL
2587 FROM address for the random test, but not for the subsequent recipient
2588 test. It is now used for both.
2590 PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2591 patch removes a few documentation additions to RFC 3028, because the
2592 latest draft now contains them. It adds the new en;ascii-case comparator
2593 and a new error check for 8bit text in MIME parts. Comparator and
2594 require names are now matched exactly. I enabled the subaddress
2595 extension, but it is not well tested yet (read: it works for me)."
2597 PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2598 rework some of the code of TK/09 above to avoid the hardwired use of
2599 "%lld" and "long long". Replaced the call to snprintf() with a call to
2602 PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2603 records point to non-existent hosts", "retry timeout exceeded", and
2604 "retry time not reached for any host after a long failure period".
2606 PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2607 experimental DomainKeys support:
2609 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2610 (2) On an error such as an illegally used "control", the wrong name for
2611 the control was given.
2613 These problems did NOT occur unless DomainKeys support was compiled.
2615 PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2617 PH/24 Added ${if match_ip condition.
2619 PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2620 databases so that it will be absolutely obvious if a crash occurs in the
2621 DB library. This is a regular occurrence (often caused by mis-matched
2624 PH/26 Insert a lot of missing (void) casts for functions such as chown(),
2625 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2626 picked up on a user's system that detects such things. There doesn't seem
2627 to be a gcc warning option for this - only an attribute that has to be
2628 put on the function's prototype. It seems that in Fedora Core 4 they have
2629 set this on a number of new functions. No doubt there will be more in due
2632 PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2633 specify a transport. However, if an address that was verified by such a
2634 router was the subject of a callout, Exim crashed because it tried to
2635 read the rcpt_include_affixes from the non-existent transport. Now it
2636 just assumes that the setting of that option is false. This bug was
2637 introduced by 4.51/PH/31.
2639 PH/28 Changed -d+all to exclude +memory, because that information is very
2640 rarely of interest, but it makes the output a lot bigger. People tend to
2641 do -d+all out of habit.
2643 PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2644 code in os-type was giving problems when libc.so lives in lib64, like on
2647 PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2648 aren't the modern standard, and it seems that some systems' include files
2649 don't always have them. Exim was already checking for some of the newer
2650 ones like T_AAAA, and defining it itself. I've added checks for all the
2651 record types that Exim uses.
2653 PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2654 not automatically generating a new one, as it is supposed to. This
2655 prevented TLS from working. If the file did exist, but contained invalid
2656 data, a new version was generated, as expected. It was only the case of a
2657 non-existent file that was broken.
2659 TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2660 with a change in libdomainkeys > 0.64.
2662 TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2663 from DNS. If the selector record carries the flag, it now has
2664 precedence over the domain-wide flag.
2666 TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2668 PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2669 the use of a port name that isn't defined in /etc/services) occurred, the
2670 message was deferred as in a normal delivery, and thus remained on the
2671 spool, instead of being failed because of the mua_wrapper setting. This
2672 is now fixed, and I tidied up some of the mua_wrapper messages at the
2675 SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2676 the messages in a hash of arrays rather than using individual hashes.
2677 This is a bit cleaner and results in dramatic memory savings, albeit
2678 at a slight CPU cost.
2680 SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2681 as requested by Marc Sherman.
2683 SC/10 Eximstats: added histograms for user specified patterns as requested
2686 SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2688 PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2689 fopen() in the content-scanning modules that did not already have it.
2695 TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2696 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2698 TK/02 Fix ACL "control" statement not being available in MIME ACL.
2700 TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2702 PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2703 to test Sieve filters that use "vacation".
2705 PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2706 that changes the way the GnuTLS parameters are stored in the cache file.
2707 The new format can be generated externally. For backward compatibility,
2708 if the data in the cache doesn't make sense, Exim assumes it has read an
2709 old-format file, and it generates new data and writes a new file. This
2710 means that you can't go back to an older release without removing the
2713 PH/03 A redirect router that has both "unseen" and "one_time" set does not
2714 work if there are any delivery delays because "one_time" forces the
2715 parent to be marked "delivered", so its unseen clone is never tried
2716 again. For this reason, Exim now forbids the simultaneous setting of
2719 PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2720 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2721 entry if you want to know the details. The fix, however, neglected to
2722 consider the case when local delivery batching is involved. The test for
2723 "previously delivered" was not happening when checking to see if an
2724 address could be batched with a previous (undelivered) one; under
2725 certain circumstances this could lead to multiple deliveries to the same
2728 PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2729 in its include files, and this causes problems building Exim.
2731 PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2732 header_syntax) but Exim was just ignoring anything given after a slash.
2733 In particular, this caused confusion with an attempt to use "verify =
2734 reverse_host_lookup/defer_ok". An error is now given when options are
2735 supplied for verify items that do not have them. (Maybe reverse_host_
2736 lookup should have a defer_ok option, but that's a different point.)
2738 PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2739 defined by RFC 821) to 2048, because there were problems with some AUTH
2740 commands, and RFC 1869 says the size should be increased for extended
2741 SMTP commands that take arguments.
2743 PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2746 PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2747 "unknown" error; now it says that the functionality isn't in the binary.
2749 PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2750 an address' error message when a string expansion fails (syntax or
2751 whatever). Otherwise the password may appear in the log. Following change
2752 PH/42 below, there is no longer a chance of it appearing in a bounce
2755 PH/11 Installed exipick version 20050225.0 from John Jetmore.
2757 PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2758 of its addresses was ever tried. (Bugzilla bug #2.)
2760 PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2761 the result incorrectly in the debug output. (It correctly added a newline
2762 to what was transported.)
2764 TF/01 Added $received_time.
2766 PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2767 commented out examples of how to interface to a virus scanner and to
2768 SpamAssassin. Also added commented examples of av_scanner and
2769 spamd_address settings.
2771 PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2772 and controls are allowed in which ACLs. There were a couple of minor
2773 errors. Some of the entries in the conditions table (which is a table of
2774 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2775 negation of where the condition IS allowed.
2777 PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2779 PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2780 header file does not have a version number, so I've had to invent a new
2781 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2782 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2783 radiusclient), but it was contributed by a Radius user.
2785 PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2786 files or directories, for OpenSSL.
2788 PH/19 When an Exim process that is running as root has to create an Exim log
2789 file, it does so in a subprocess that runs as exim:exim so as to get the
2790 ownership right at creation (otherwise, other Exim processes might see
2791 the file with the wrong ownership). There was no test for failure of this
2792 fork() call, which would lead to the process getting stuck as it waited
2793 for a non-existent subprocess. Forks do occasionally fail when resources
2794 run out. I reviewed all the other calls to fork(); they all seem to check
2797 PH/20 When checking for unexpected SMTP input at connect time (before writing
2798 the banner), Exim was not dealing correctly with a non-positive return
2799 from the read() function. If the client had disconnected by this time,
2800 the result was a log entry for a synchronization error with an empty
2801 string after "input=" when read() returned zero. If read() returned -1
2802 (an event I could not check), uninitialized data bytes were printed.
2803 There were reports of junk text (parts of files, etc) appearing after
2806 PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2808 PH/22 Added support for macro redefinition, and (re)definition in between
2809 driver and ACL definitions.
2811 PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2812 forgetting to use the resulting value; it was using the unexpanded value.
2814 PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2815 hadn't been configured. The fix is from Juergen Kreileder, who
2816 understands it better than I do:
2818 "Here's what I see happening with three configured cyrus_sasl
2819 authenticators configured (plain, login, cram-md5):
2821 On startup auth_cyrus_sasl_init() gets called for each of these.
2822 This means three calls to sasl_listmech() without a specified mech_list.
2823 => SASL tests which mechs of all available mechs actually work
2824 => three warnings about OTP not working
2825 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2827 With the patch, sasl_listmech() also gets called three times. But now
2828 SASL's mech_list option is set to the server_mech specified in the the
2829 authenticator. Or in other words, the answer from sasl_listmech()
2830 gets limited to just the mech you're testing for (which is different
2832 => the return list contains just 'plain' or 'login', 'cram-md5' or
2833 nothing depending on the value of ob->server_mech.
2835 I've just tested the patch: Authentication still works fine,
2836 unavailable mechs specified in the exim configuration are still
2837 caught, and the auth.log warnings about OTP are gone."
2839 PH/25 When debugging is enabled, the contents of the command line are added
2840 to the debugging output, even when log_selector=+arguments is not
2843 PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2844 answer is "GNU", and only if the return is "GNU/something" is the answer
2847 PH/27 $acl_verify_message is now set immediately after the failure of a
2848 verification in an ACL, and so is available in subsequent modifiers. In
2849 particular, the message can be preserved by coding like this:
2851 warn !verify = sender
2852 set acl_m0 = $acl_verify_message
2854 Previously, $acl_verify_message was set only while expanding "message"
2855 and "log_message" when a very denied access.
2857 PH/28 Modified OS/os.c-Linux with
2859 -#ifndef OS_LOAD_AVERAGE
2860 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2862 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2863 nomenclature these days.)
2865 PH/29 Installed patch from the Sieve maintainer that adds the options
2866 sieve_useraddress and sieve_subaddress to the redirect router.
2868 PH/30 In these circumstances:
2869 . Two addresses routed to the same list of hosts;
2870 . First host does not offer TLS;
2871 . First host accepts first address;
2872 . First host gives temporary error to second address;
2873 . Second host offers TLS and a TLS session is established;
2874 . Second host accepts second address.
2875 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2876 and peerdn, if requested) that were in fact used only for the second
2879 PH/31 When doing a callout as part of verifying an address, Exim was not paying
2880 attention to any local part prefix or suffix that was matched by the
2881 router that accepted the address. It now behaves in the same way as it
2882 does for delivery: the affixes are removed from the local part unless
2883 rcpt_include_affixes is set on the transport.
2885 PH/32 Add the sender address, as F=<...>, to the log line when logging a
2886 timeout during the DATA phase of an incoming message.
2888 PH/33 Sieve envelope tests were broken for match types other than :is. I have
2889 applied a patch sanctioned by the Sieve maintainer.
2891 PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2892 the uid or gid is negative. A case of a negative gid caused this to be
2893 noticed. The fix allows for either to be negative.
2895 PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2896 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2899 PH/36 The change PH/12 above was broken. Fixed it.
2901 PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2902 the grounds that routing the same address twice would always produce the
2903 same answer. This might have been true once, but it is certainly no
2904 longer true now. Routing a child address may depend on the previous
2905 routing that produced that child. Some complicated redirection strategies
2906 went wrong when messages had multiple recipients, and made Exim's
2907 behaviour dependent on the order in which the addresses were given.
2909 I have moved the duplicate checking until after the routing is complete.
2910 Exim scans the addresses that are assigned to local and remote
2911 transports, and removes any duplicates. This means that more work will be
2912 done, as duplicates will always all be routed, but duplicates are
2913 presumably rare, so I don't expect this is of any significance.
2915 For deliveries to pipes, files, and autoreplies, the duplicate checking
2916 still happens during the routing process, since they are not going to be
2919 PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2920 It corrects a timeout issue with spamd. This is Ian's comment: "The
2921 background is that sometimes spamd either never reads data from a
2922 connection it has accepted, or it never writes response data. The exiscan
2923 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2924 blindly assumes that writes won't block so it may never time out."
2926 PH/39 Allow G after quota size as well as K and M.
2928 PH/40 The value set for $authenticated_id in an authenticator may not contain
2929 binary zeroes or newlines because the value is written to log lines and
2930 to spool files. There was no check on this. Now the value is run through
2931 the string_printing() function so that such characters are converted to
2932 printable escape sequences.
2934 PH/41 $message_linecount is a new variable that contains the total number of
2935 lines in the message. Compare $body_linecount, which is the count for the
2938 PH/42 Exim no longer gives details of delivery errors for specific addresses in
2939 bounce and delay warning messages, except in certain special cases, which
2942 (a) An SMTP error message from a remote host;
2943 (b) A message specified in a :fail: redirection;
2944 (c) A message specified in a "fail" command in a system filter;
2945 (d) A message specified in a FAIL return from the queryprogram router;
2946 (e) A message specified by the cannot_route_message router option.
2948 In these cases only, Exim does include the error details in bounce and
2949 warning messages. There are also a few cases where bland messages such
2950 as "unrouteable address" or "local delivery error" are given.
2952 PH/43 $value is now also set for the "else" part of a ${run expansion.
2954 PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2955 being worked on, but at least Exim now implements the latest version to
2958 PH/45 In a pipe transport, although a timeout while waiting for the pipe
2959 process to complete was treated as a delivery failure, a timeout while
2960 writing the message to the pipe was logged, but erroneously treated as a
2961 successful delivery. Such timeouts include transport filter timeouts. For
2962 consistency with the overall process timeout, these timeouts are now
2963 treated as errors, giving rise to delivery failures by default. However,
2964 there is now a new Boolean option for the pipe transport called
2965 timeout_defer, which, if set TRUE, converts the failures into defers for
2966 both kinds of timeout. A transport filter timeout is now identified in
2969 PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2970 systems where "make" and "gmake" are different, calling "gmake" at top
2971 level broke things. I've arranged for the value of $(MAKE) to be passed
2972 from the Makefile to this script so that it can call the same version of
2976 A note about Exim versions 4.44 and 4.50
2977 ----------------------------------------
2979 Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2980 changes of various kinds. As a consequence, a big documentation update was
2981 needed. This delayed the release for rather longer than seemed good, especially
2982 in the light of a couple of (minor) security issues. Therefore, the changes
2983 that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2984 release. So 4.44 and 4.50 are in effect two different branches that both start
2987 I have left the 4.50 change log unchanged; it contains all the changes since
2988 4.43. The change log for 4.44 is below; many of its items are identical to
2989 those for 4.50. This seems to be the most sensible way to preserve the
2990 historical information.
2996 1. Minor wording change to the doc/README.SIEVE file.
2998 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
2999 computation of the current number of files was incorrect.
3001 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3002 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3005 4. Give more explanation in the error message when the command for a transport
3006 filter fails to execute.
3008 5. There are several places where Exim runs a non-Exim command in a
3009 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3010 was being done only for the command run by the queryprogram router. It is
3011 now done for all such subprocesses. The other cases are: ${run, transport
3012 filters, and the commands run by the lmtp and pipe transports.
3014 6. Added CONFIGURE_GROUP build-time option.
3016 7. Some older OS have a limit of 256 on the maximum number of file
3017 descriptors. Exim was using setrlimit() to set 1000 as a large value
3018 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3019 systems. I've change it so that if it can't get 1000, it tries for 256.
3021 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3022 was an oversight, and furthermore, ever since the addition of extra
3023 controls (e.g. 4.43/32), the checks on when to allow different forms of
3024 "control" were broken. There should now be diagnostics for all cases when a
3025 control that does not make sense is encountered.
3027 9. Added the /retain_sender option to "control=submission".
3029 10. $recipients is now available in the predata ACL (oversight).
3031 11. Tidy the search cache before the fork to do a delivery from a message
3032 received from the command line. Otherwise the child will trigger a lookup
3033 failure and thereby defer the delivery if it tries to use (for example) a
3034 cached ldap connection that the parent has called unbind on.
3036 12. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3037 of $address_data from the recipient verification was clobbered by the
3038 sender verification.
3040 13. The value of address_data from a sender verification is now available in
3041 $sender_address_data in subsequent conditions in the ACL statement.
3043 14. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
3045 15. Added a new option "connect=<time>" to callout options, to set a different
3048 16. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3049 was its contents. (It was OK if the option was not defined at all.)
3051 17. A "Completed" log line is now written for messages that are removed from
3052 the spool by the -Mrm option.
3054 18. New variables $sender_verify_failure and $recipient_verify_failure contain
3055 information about exactly what failed.
3057 19. Added -dd to debug only the daemon process.
3059 20. Incorporated Michael Haardt's patch to ldap.c for improving the way it
3060 handles timeouts, both on the server side and network timeouts. Renamed the
3061 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
3063 21. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
3064 It is now set to "smtps".
3066 22. $host_address is now set to the target address during the checking of
3067 ignore_target_hosts.
3069 23. When checking ignore_target_hosts for an ipliteral router, no host name was
3070 being passed; this would have caused $sender_host_name to have been used if
3071 matching the list had actually called for a host name (not very likely,
3072 since this list is usually IP addresses). A host name is now passed as
3075 24. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3076 code that specifies a non-restarting handler (typically sigaction() in
3077 modern systems) in an attempt to fix a rare and obscure crash bug.
3079 25. Narrowed the window for a race in the daemon that could cause it to ignore
3080 SIGCHLD signals. This is not a major problem, because they are used only to
3081 wake it up if nothing else does.
3083 26. A malformed maildirsize file could cause Exim to calculate negative values
3084 for the mailbox size or file count. Odd effects could occur as a result.
3085 The maildirsize information is now recalculated if the size or filecount
3088 27. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3089 support for a long time. Removed HAVE_SYS_VFS_H.
3091 28. Installed the latest version of exipick from John Jetmore.
3093 29. In an address list, if the pattern was not a regular expression, an empty
3094 subject address (from a bounce message) matched only if the pattern was an
3095 empty string. Non-empty patterns were not even tested. This was the wrong
3096 because it is perfectly reasonable to use an empty address as part of a
3097 database query. An empty address is now tested by patterns that are
3098 lookups. However, all the other forms of pattern expect the subject to
3099 contain a local part and a domain, and therefore, for them, an empty
3100 address still always fails if the pattern is not itself empty.
3102 30. Exim went into a mad DNS loop when attempting to do a callout where the
3103 host was specified on an smtp transport, and looking it up yielded more
3104 than one IP address.
3106 31. Re-factored the code for checking spool and log partition space into a
3107 function that finds that data and another that does the check. The former
3108 is then used to implement four new variables: $spool_space, $log_space,
3109 $spool_inodes, and $log_inodes.
3111 32. The RFC2047 encoding function was originally intended for short strings
3112 such as real names; it was not keeping to the 75-character limit for
3113 encoded words that the RFC imposes. It now respects the limit, and
3114 generates multiple encoded words if necessary. To be on the safe side, I
3115 have increased the buffer size for the ${rfc2047: expansion operator from
3118 33. It is now permitted to omit both strings after an "if" condition; if the
3119 condition is true, the result is "true". As before, when the second string
3120 is omitted, a false condition yields an empty string. This makes it less
3121 cumbersome to write custom ACL and router conditions.
3123 34. Failure to deliver a bounce message always caused it to be frozen, even if
3124 there was an errors_to setting on the router. The errors_to setting is now
3127 35. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3128 canonical form (fully expanded) before being placed in
3129 $sender_host_address.
3131 36. The table in the code that translates DNS record types into text (T_A to
3132 "A" for instance) was missing entries for NS and CNAME. It is just possible
3133 that this could have caused confusion if both these types were looked up
3134 for the same domain, because the text type is used as part of Exim's
3135 per-process caching. But the chance of anyone hitting this buglet seems
3138 37. The dnsdb lookup has been extended in a number of ways.
3140 (1) There is a new type, "zns", which walks up the domain tree until it
3141 finds some nameserver records. It should be used with care.
3143 (2) There is a new type, "mxh", which is like "mx" except that it returns
3144 just the host names, not the priorities.
3146 (3) It is now possible to give a list of domains (or IP addresses) to be
3147 looked up. The behaviour when one of the lookups defers can be
3148 controlled by a keyword.
3150 (4) It is now possible to specify the separator character for use when
3151 multiple records are returned.
3153 38. The dnslists ACL condition has been extended: it is now possible to supply
3154 a list of IP addresses and/or domains to be looked up in a particular DNS
3157 39. Added log_selector=+queue_time_overall.
3159 40. When running the queue in the test harness, wait just a tad after forking a
3160 delivery process, to get repeatability of debugging output.
3162 41. Include certificate and key file names in error message when GnuTLS fails
3163 to set them up, because the GnuTLS error message doesn't include the name
3164 of the failing file when there is a problem reading it.
3166 42. Allow both -bf and -bF in the same test run.
3168 43. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
3170 44. The "Exiscan patch" is now merged into the mainline Exim source.
3172 45. Sometimes the final signoff response after QUIT could fail to get
3173 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3174 < 0 before doing a fflush(). This bug looks as though it goes back to the
3175 introduction of TLS in release 3.20, but "sometimes" must have been rare
3176 because the tests only now provoked it.
3178 46. Reset the locale to "C" after calling embedded Perl, in case it was changed
3179 (this can affect the format of dates).
3181 47. exim_tidydb, when checking for the continued existence of a message for
3182 which it has found a message-specific retry record, was not finding
3183 messages that were in split spool directories. Consequently, it was
3184 deleting retry records that should have stayed in existence.
3186 48. Steve fixed some bugs in eximstats.
3188 49. The SPA authentication driver was not abandoning authentication and moving
3189 on to the next authenticator when an expansion was forced to fail,
3190 contradicting the general specification for all authenticators. Instead it
3191 was generating a temporary error. It now behaves as specified.
3193 50. The default ordering of permitted cipher suites for GnuTLS was pessimal
3194 (the order specifies the preference for clients). The order is now AES256,
3195 AES128, 3DES, ARCFOUR128.
3197 51. Small patch to Sieve code - explicitly set From: when generating an
3200 52. Exim crashed if a remote delivery caused a very long error message to be
3201 recorded - for instance if somebody sent an entire SpamAssassin report back
3202 as a large number of 550 error lines. This bug was coincidentally fixed by
3203 increasing the size of one of Exim's internal buffers (big_buffer) that
3204 happened as part of the Exiscan merge. However, to be on the safe side, I
3205 have made the code more robust (and fixed the comments that describe what
3208 53. Now that there can be additional text after "Completed" in log lines (if
3209 the queue_time_overall log selector is set), a one-byte patch to exigrep
3210 was needed to allow it to recognize "Completed" as not the last thing in
3213 54. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
3214 patch that reportedly fixes this has been added. I am not expert enough to
3215 create a test for it. This is what the patch creator wrote:
3217 "I found a little strange behaviour of ldap code when working with
3218 Windows 2003 AD Domain, where users was placed in more than one
3219 Organization Units. When I tried to give exim partial DN, the exit code
3220 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
3221 But simultaneously result of request was absolutely normal ldap result,
3222 so I produce this patch..."
3224 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
3225 REFERENCE, so I have modified the code to exclude the patch when that macro
3228 55. Some experimental protocols are using DNS PTR records for new purposes. The
3229 keys for these records are domain names, not reversed IP addresses. The
3230 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3231 leaves it alone. Component reversal etc. now happens only for IP addresses.
3234 56. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
3236 57. Double the size of the debug message buffer (to 2048) so that more of very
3237 long debug lines gets shown.
3239 58. The exicyclog utility now does better if the number of log files to keep
3240 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
3242 59. Two changes related to the smtp_active_hostname option:
3244 (1) $smtp_active_hostname is now available as a variable.
3245 (2) The default for smtp_banner uses $smtp_active_hostname instead
3246 of $primary_hostname.
3248 60. The host_aton() function is supposed to be passed a string that is known
3249 to be a valid IP address. However, in the case of IPv6 addresses, it was
3250 not checking this. This is a hostage to fortune. Exim now panics and dies
3251 if the condition is not met. A case was found where this could be provoked
3252 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3253 components; fortuitously, this particular loophole had already been fixed
3254 by change 4.50/55 above.
3256 If there are any other similar loopholes, the new check in host_aton()
3257 itself should stop them being exploited. The report I received stated that
3258 data on the command line could provoke the exploit when Exim was running as
3259 exim, but did not say which command line option was involved. All I could
3260 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3261 running as the user.
3264 61. There was a buffer overflow vulnerability in the SPA authentication code
3265 (which came originally from the Samba project). I have added a test to the
3266 spa_base64_to_bits() function which I hope fixes it.
3269 62. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3270 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3272 63. The daemon start-up calls getloadavg() while still root for those OS that
3273 need the first call to be done as root, but it missed one case: when
3274 deliver_queue_load_max is set with deliver_drop_privilege. This is
3275 necessary for the benefit of the queue runner, because there is no re-exec
3276 when deliver_drop_privilege is set.
3278 64. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3279 This has been fixed.
3281 65. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3282 was in use, was not putting the data itself into the right store pool;
3283 consequently, it could be overwritten for a subsequent message in the same
3284 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3287 66. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3289 67. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3290 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3291 the function were treating the return as a boolean value, which happened to
3292 work because 0=false and not-0=true, but is not correct code.
3294 68. The host_aton() function was not handling scoped IPv6 addresses (those
3295 with, for example, "%eth0" on the end) correctly.
3297 69. Fixed some compiler warnings in acl.c for the bitmaps specified with
3298 negated items (that is, ~something) in unsigned ints. Some compilers
3299 apparently mutter when there is no cast.
3301 70. If an address verification called from an ACL failed, and did not produce a
3302 user-specific message (i.e. there was only a "system" message), nothing was
3303 put in $acl_verify_message. In this situation, it now puts the system
3306 71. Change 4.23/11 added synchronization checking at the start of an SMTP
3307 session; change 4.31/43 added the unwanted input to the log line - except
3308 that it did not do this in the start of session case. It now does.
3310 72. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3311 This is wrong and can cause the other end to generate a synchronization
3312 error if it is another Exim or anything else that does the synchronization
3313 check. A QUIT command is no longer sent after a timeout.
3315 73. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3316 during host lookups.
3318 74. The defer_ok option of callout verification was not working if it was used
3319 when verifying addresses in header lines, that is, for this case:
3321 verify = header_sender/callout=defer_ok
3323 75. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3324 those file descriptors could be used for SMTP connections. If anything
3325 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3326 could be sent to the SMTP client, causing chaos. The daemon now opens
3327 stdin, stdout, and stderr to /dev/null when it puts itself into the
3330 76. Arrange for output from Perl's "warn" command to be written to Exim's main
3331 log by default. The user can override this with suitable Perl magic.
3333 77. The use of log_message on a "discard" ACL verb, which is supposed to add to
3334 the log message when discard triggers, was not working for the DATA ACL or
3335 for the non-SMTP ACL.
3337 78. Error message wording change in sieve.c.
3339 79. If smtp_accept_max_per_host was set, the number of connections could be
3340 restricted to fewer than expected, because the daemon was trying to set up
3341 a new connection before checking whether the processes handling previous
3342 connections had finished. The check for completed processes is now done
3343 earlier. On busy systems, this bug wouldn't be noticed because something
3344 else would have woken the daemon, and it would have reaped the completed
3347 80. If a message was submitted locally by a user whose login name contained one
3348 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3349 It caused a spool format error. I have fixed the spool reading code. A
3350 related problem was that the "from" clause in the Received: line became
3351 illegal because of the space(s). It is now covered by ${quote_local_part.
3353 81. Included the latest eximstats from Steve (adds average sizes to HTML Top
3356 82. Updated OS/Makefile-AIX as per message from Mike Meredith.
3358 83. Patch from Sieve maintainer to fix unterminated string problem in
3359 "vacation" handling.
3361 84. Some minor changes to the Linux configuration files to help with other
3362 OS variants using glibc.
3364 85. One more patch for Sieve to update vacation handling to latest spec.
3367 ----------------------------------------------------
3368 See the note above about the 4.44 and 4.50 releases.
3369 ----------------------------------------------------
3375 1. Change 4.43/35 introduced a bug that caused file counts to be
3376 incorrectly computed when quota_filecount was set in an appendfile
3379 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3380 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3383 3. Give more explanation in the error message when the command for a transport
3384 filter fails to execute.
3386 4. There are several places where Exim runs a non-Exim command in a
3387 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3388 was being done only for the command run by the queryprogram router. It is
3389 now done for all such subprocesses. The other cases are: ${run, transport
3390 filters, and the commands run by the lmtp and pipe transports.
3392 5. Some older OS have a limit of 256 on the maximum number of file
3393 descriptors. Exim was using setrlimit() to set 1000 as a large value
3394 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3395 systems. I've change it so that if it can't get 1000, it tries for 256.
3397 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3398 was an oversight, and furthermore, ever since the addition of extra
3399 controls (e.g. 4.43/32), the checks on when to allow different forms of
3400 "control" were broken. There should now be diagnostics for all cases when a
3401 control that does not make sense is encountered.
3403 7. $recipients is now available in the predata ACL (oversight).
3405 8. Tidy the search cache before the fork to do a delivery from a message
3406 received from the command line. Otherwise the child will trigger a lookup
3407 failure and thereby defer the delivery if it tries to use (for example) a
3408 cached ldap connection that the parent has called unbind on.
3410 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3411 of $address_data from the recipient verification was clobbered by the
3412 sender verification.
3414 10. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3415 was its contents. (It was OK if the option was not defined at all.)
3417 11. A "Completed" log line is now written for messages that are removed from
3418 the spool by the -Mrm option.
3420 12. $host_address is now set to the target address during the checking of
3421 ignore_target_hosts.
3423 13. When checking ignore_target_hosts for an ipliteral router, no host name was
3424 being passed; this would have caused $sender_host_name to have been used if
3425 matching the list had actually called for a host name (not very likely,
3426 since this list is usually IP addresses). A host name is now passed as
3429 14. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3430 code that specifies a non-restarting handler (typically sigaction() in
3431 modern systems) in an attempt to fix a rare and obscure crash bug.
3433 15. Narrowed the window for a race in the daemon that could cause it to ignore
3434 SIGCHLD signals. This is not a major problem, because they are used only to
3435 wake it up if nothing else does.
3437 16. A malformed maildirsize file could cause Exim to calculate negative values
3438 for the mailbox size or file count. Odd effects could occur as a result.
3439 The maildirsize information is now recalculated if the size or filecount
3442 17. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3443 support for a long time. Removed HAVE_SYS_VFS_H.
3445 18. Updated exipick to current release from John Jetmore.
3447 19. Allow an empty sender to be matched against a lookup in an address list.
3448 Previously the only cases considered were a regular expression, or an
3451 20. Exim went into a mad DNS lookup loop when doing a callout where the
3452 host was specified on the transport, if the DNS lookup yielded more than
3455 21. The RFC2047 encoding function was originally intended for short strings
3456 such as real names; it was not keeping to the 75-character limit for
3457 encoded words that the RFC imposes. It now respects the limit, and
3458 generates multiple encoded words if necessary. To be on the safe side, I
3459 have increased the buffer size for the ${rfc2047: expansion operator from
3462 22. Failure to deliver a bounce message always caused it to be frozen, even if
3463 there was an errors_to setting on the router. The errors_to setting is now
3466 23. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3467 canonical form (fully expanded) before being placed in
3468 $sender_host_address.
3470 24. Updated eximstats to version 1.33
3472 25. Include certificate and key file names in error message when GnuTLS fails
3473 to set them up, because the GnuTLS error message doesn't include the name
3474 of the failing file when there is a problem reading it.
3476 26. Expand error message when OpenSSL has problems setting up cert/key files.
3479 27. Reset the locale to "C" after calling embedded Perl, in case it was changed
3480 (this can affect the format of dates).
3482 28. exim_tidydb, when checking for the continued existence of a message for
3483 which it has found a message-specific retry record, was not finding
3484 messages that were in split spool directories. Consequently, it was
3485 deleting retry records that should have stayed in existence.
3487 29. eximstats updated to version 1.35
3488 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3489 1.35 - bugfix such that pie charts by volume are generated correctly
3491 30. The SPA authentication driver was not abandoning authentication and moving
3492 on to the next authenticator when an expansion was forced to fail,
3493 contradicting the general specification for all authenticators. Instead it
3494 was generating a temporary error. It now behaves as specified.
3496 31. The default ordering of permitted cipher suites for GnuTLS was pessimal
3497 (the order specifies the preference for clients). The order is now AES256,
3498 AES128, 3DES, ARCFOUR128.
3500 31. Small patch to Sieve code - explicitly set From: when generating an
3503 32. Exim crashed if a remote delivery caused a very long error message to be
3504 recorded - for instance if somebody sent an entire SpamAssassin report back
3505 as a large number of 550 error lines. This bug was coincidentally fixed by
3506 increasing the size of one of Exim's internal buffers (big_buffer) that
3507 happened as part of the Exiscan merge. However, to be on the safe side, I
3508 have made the code more robust (and fixed the comments that describe what
3511 33. Some experimental protocols are using DNS PTR records for new purposes. The
3512 keys for these records are domain names, not reversed IP addresses. The
3513 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3514 leaves it alone. Component reversal etc. now happens only for IP addresses.
3517 34. The host_aton() function is supposed to be passed a string that is known
3518 to be a valid IP address. However, in the case of IPv6 addresses, it was
3519 not checking this. This is a hostage to fortune. Exim now panics and dies
3520 if the condition is not met. A case
projects / exim.git / blob