Use .dylib not .so for dynamic libraries on MacOS
[exim.git] / doc / doc-txt / ChangeLog
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1Change log file for Exim from version 4.21
2-------------------------------------------
3
867fcbf5
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4Exim version 4.77
5-----------------
6
7PP/01 Solaris build fix for Oracle's LDAP libraries.
8 Bugzilla 1109, patch from Stephen Usher.
9
f1a29782
TF
10TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
11
ab42bd23
TK
12TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
13 whitespace trailer
867fcbf5 14
0ca0cf52
TF
15TF/02 Fix a couple more cases where we did not log the error message
16 when unlink() failed. See also change 4.74-TF/03.
17
921b12ca
TF
18TF/03 Make the exiwhat support code safe for signals. Previously Exim might
19 lock up or crash if it happened to be inside a call to libc when it
20 got a SIGUSR1 from exiwhat.
21
22 The SIGUSR1 handler appends the current process status to the process
23 log which is later printed by exiwhat. It used to use the general
24 purpose logging code to do this, but several functions it calls are
25 not safe for signals.
26
27 The new output code in the SIGUSR1 handler is specific to the process
28 log, and simple enough that it's easy to inspect for signal safety.
29 Removing some special cases also simplifies the general logging code.
30 Removing the spurious timestamps from the process log simplifies
31 exiwhat.
32
c99ce5c9
TF
33TF/04 Improved ratelimit ACL condition.
34
35 The /noupdate option has been deprecated in favour of /readonly which
36 has clearer semantics. The /leaky, /strict, and /readonly update modes
37 are mutually exclusive. The update mode is no longer included in the
38 database key; it just determines when the database is updated. (This
39 means that when you upgrde Exim will forget old rate measurements.)
40
41 Exim now checks that the per_* options are used with an update mode that
42 makes sense for the current ACL. For example, when Exim is processing a
43 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
44 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
45 must specify per_mail/readonly. If you omit the update mode it defaults to
46 /leaky where that makes sense (as before) or /readonly where required.
47
48 The /noupdate option is now undocumented but still supported for
49 backwards compatibility. It is equivalent to /readonly except that in
50 ACLs where /readonly is required you may specify /leaky/noupdate or
51 /strict/noupdate which are treated the same as /readonly.
52
53 A useful new feature is the /count= option. This is a generalization
54 of the per_byte option, so that you can measure the throughput of other
55 aggregate values. For example, the per_byte option is now equivalent
56 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
57
58 The per_rcpt option has been generalized using the /count= mechanism
59 (though it's more complicated than the per_byte equivalence). When it is
60 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
61 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
62 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
63 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
64 Note that using per_rcpt with a non-readonly update mode in more than
65 one ACL will cause the recipients to be double-counted. (The per_mail
66 and per_byte options don't have this problem.)
67
68 The handling of very low rates has changed slightly. If the computed rate
69 is less than the event's count (usually one) then this event is the first
70 after a long gap. In this case the rate is set to the same as this event's
71 count, so that the first message of a spam run is counted properly.
72
73 The major new feature is a mechanism for counting the rate of unique
74 events. The new per_addr option counts the number of different
75 recipients that someone has sent messages to in the last time period. It
76 behaves like per_rcpt if all the recipient addresses are different, but
77 duplicate recipient addresses do not increase the measured rate. Like
78 the /count= option this is a general mechanism, so the per_addr option
79 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
80 example, measure the rate that a client uses different sender addresses
81 with the options per_mail/unique=$sender_address. There are further
82 details in the main documentation.
83
3634fc25
TF
84TF/05 Removed obsolete $Cambridge$ CVS revision strings.
85
792e8a19
TF
86TF/06 Removed a few PCRE remnants.
87
5901f0ab
TF
88TF/07 Automatically extract Exim's version number from tags in the git
89 repository when doing development or release builds.
90
e2ca7082
PP
91PP/02 Raise smtp_cmd_buffer_size to 16kB. Patch from Paul Fisher.
92 Bugzilla 879.
93
061b7ebd
PP
94PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
95 Heavily based on revision 40f9a89a from Simon Arlott's tree.
96 Bugzilla 97.
97
e12f8c32
PP
98PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
99
0ca0cf52 100
10906672
PP
101Exim version 4.76
102-----------------
103
104PP/01 The new ldap_require_cert option would segfault if used. Fixed.
105
754a0503
PP
106PP/02 Harmonised TLS library version reporting; only show if debugging.
107 Layout now matches that introduced for other libraries in 4.74 PP/03.
108
c0c7b2da
PP
109PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
110
e97d1f08
PP
111PP/04 New "dns_use_edns0" global option.
112
084c1d8c
PP
113PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
114 Bugzilla 1098.
115
4e7ee012
PP
116PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
117 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 118
c8d52a00
PP
119TK/01 Updated PolarSSL code to 0.14.2.
120 Bugzilla 1097. Patch from Andreas Metzler.
121
54e7ce4a
PP
122PP/07 Catch divide-by-zero in ${eval:...}.
123 Fixes bugzilla 1102.
124
5ee6f336
PP
125PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
126 Bugzilla 1104.
127
c8d52a00 128TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
129 format-string attack -- SECURITY: remote arbitrary code execution.
130
131TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
132 time unintentionally subject to list matching rules, letting the header
133 cause arbitrary Exim lookups (of items which can occur in lists, *not*
134 arbitrary string expansion). This allowed for information disclosure.
135
136PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
137 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 138
10906672 139
aa097c4c
NM
140Exim version 4.75
141-----------------
142
4c9ef03a 143NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
144 Bugzilla 1073
145
7f3d9eff
TF
146TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
147 This fixes portability to compilers other than gcc, notably
148 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
149
159f52d2
TF
150TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
151 makefiles for portability to HP-UX and POSIX correctness.
152
0cc9542a
PP
153PP/01 Permit LOOKUP_foo enabling on the make command-line.
154 Also via indented variable definition in the Makefile.
155 (Debugging by Oliver Heesakkers).
156
f7274286
PP
157PP/02 Restore caching of spamd results with expanded spamd_address.
158 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
159
7b797365
PP
160PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
161 Improves build reliability. Fix from: Frank Elsner
162
caacae52
NM
163NM/02 Fix wide character breakage in the rfc2047 coding
164 Fixes bug 1064. Patch from Andrey N. Oktyabrski
165
09dcaba9
NM
166NM/03 Allow underscore in dnslist lookups
167 Fixes bug 1026. Patch from Graeme Fowler
168
bc19a55b
PP
169PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
170 Code patches from Adam Ciarcinski of NetBSD.
caacae52 171
bd4c9759
NM
172NM/04 Fixed exiqgrep to cope with mailq missing size issue
173 Fixes bug 943.
174
b72aab72
PP
175PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
176 is logged, to avoid truncation. Patch from John Horne.
177
2fe76745
PP
178PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
179 Patch from Jakob Hirsch.
180
76aa570c
PP
181PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
182 SQL string expansion failure details.
183 Patch from Andrey Oktyabrski.
184
f1e5fef5
PP
185PP/08 Bugzilla 486: implement %M datestamping in log filenames.
186 Patch from Simon Arlott.
187
4d805ee9
PP
188PP/09 New lookups functionality failed to compile on old gcc which rejects
189 extern declarations in function scope.
190 Patch from Oliver Fleischmann
191
cd59ab18
PP
192PP/10 Use sig_atomic_t for flags set from signal handlers.
193 Check getgroups() return and improve debugging.
194 Fixed developed for diagnosis in bug 927 (which turned out to be
195 a kernel bug).
196
332f5cf3
PP
197PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
198 Patch from Mark Zealey.
199
29cfeb94
PP
200PP/12 Bugzilla 1056: Improved spamd server selection.
201 Patch from Mark Zealey.
202
660242ad
PP
203PP/13 Bugzilla 1086: Deal with maildir quota file races.
204 Based on patch from Heiko Schlittermann.
205
bc4bc4c5
PP
206PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
207 Patch from Uwe Doering, sign-off by Michael Haardt.
208
2e64baa9
NM
209NM/05 Fix to spam.c to accommodate older gcc versions which dislike
210 variable declaration deep within a block. Bug and patch from
211 Dennis Davis.
212
bddd7526
PP
213PP/15 lookups-Makefile IRIX compatibilty coercion.
214
6bac1a9a
PP
215PP/16 Make DISABLE_DKIM build knob functional.
216
552193f0
NM
217NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
218 Patch by Simon Arlott
baeee2c1 219
1b587e48
TF
220TF/03 Fix valgrind.h portability to C89 compilers that do not support
221 variable argument macros. Our copy now differs from upstream.
222
aa097c4c 223
8c07b69f
TF
224Exim version 4.74
225-----------------
226
227TF/01 Failure to get a lock on a hints database can have serious
228 consequences so log it to the panic log.
229
c0ea85ab
TF
230TF/02 Log LMTP confirmation messages in the same way as SMTP,
231 controlled using the smtp_confirmation log selector.
232
0761d44e
TF
233TF/03 Include the error message when we fail to unlink a spool file.
234
0a349494
PP
235DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
236 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
237 for maintaining out-of-tree patches for some time.
238
239PP/01 Bugzilla 139: Documentation and portability issues.
240 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
241 Handle per-OS dynamic-module compilation flags.
242
fea24b2e
PP
243PP/02 Let /dev/null have normal permissions.
244 The 4.73 fixes were a little too stringent and complained about the
245 permissions on /dev/null. Exempt it from some checks.
246 Reported by Andreas M. Kirchwitz.
247
6545de78
PP
248PP/03 Report version information for many libraries, including
249 Exim version information for dynamically loaded libraries. Created
250 version.h, now support a version extension string for distributors
251 who patch heavily. Dynamic module ABI change.
252
1670ef10
PP
253PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
254 privilege escalation vulnerability whereby the Exim run-time user
255 can cause root to append content of the attacker's choosing to
256 arbitrary files.
257
c0886197
PP
258PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
259 (Wolfgang Breyha)
260
b7487bce
PP
261PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
262 If dropping privileges for untrusted macros, we disabled normal logging
263 on the basis that it would fail; for the Exim run-time user, this is not
264 the case, and it resulted in successful deliveries going unlogged.
265 Fixed. Reported by Andreas Metzler.
266
8c07b69f 267
97fd1e48 268Exim version 4.73
ed7f7860 269-----------------
97fd1e48
PP
270
271PP/01 Date: & Message-Id: revert to normally being appended to a message,
272 only prepend for the Resent-* case. Fixes regression introduced in
273 Exim 4.70 by NM/22 for Bugzilla 607.
274
6901c596
PP
275PP/02 Include check_rfc2047_length in configure.default because we're seeing
276 increasing numbers of administrators be bitten by this.
277
a8c8d6b5
JJ
278JJ/01 Added DISABLE_DKIM and comment to src/EDITME
279
77bb000f
PP
280PP/03 Bugzilla 994: added openssl_options main configuration option.
281
a29e5231
PP
282PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
283
ec5a0394 284PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 285
55c75993
PP
286PP/06 Adjust NTLM authentication to handle SASL Initial Response.
287
453a6645 288PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
289 without a peer certificate, leading to a segfault because of an
290 assumption that peers always have certificates. Be a little more
453a6645
PP
291 paranoid. Problem reported by Martin Tscholak.
292
8544e77a
PP
293PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
294 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
295 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
296 CL also introduces -bmalware, various -d+acl logging additions and
297 more caution in buffer sizes.
8544e77a 298
83e029d5
PP
299PP/09 Implemented reverse_ip expansion operator.
300
ed7f7860
PP
301PP/10 Bugzilla 937: provide a "debug" ACL control.
302
7d9f747b
PP
303PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
304
4b2241d2
PP
305PP/12 Bugzilla 973: Implement --version.
306
10385c15
PP
307PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
308
dbc4b90d
PP
309PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
310
532be449
PP
311PP/15 Bugzilla 816: support multiple condition rules on Routers.
312
6a8de854 313PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
314 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
315 ignore trailing whitespace.
6a8de854 316
5dc43717
JJ
317JJ/02 prevent non-panic DKIM error from being sent to paniclog
318
319JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
320 "exim" to be used
55c75993 321
3346ab01
PP
322PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
323 Notification from Dr Andrew Aitchison.
324
491fab4c
PP
325PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
326 ExtendedDetectionInfo response format.
327 Notification from John Horne.
328
13eb9497
PP
329PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
330 compatible.
331
332PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
333 XSL and documented dependency on system catalogs, with examples of how
334 it normally works.
335
7f36d675
DW
336DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
337 access.
338
c1d94452
DW
339DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
340 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
341 configuration file which is writeable by the Exim user or group.
342
e2f5dc15
DW
343DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
344 of configuration files to cover files specified with the -C option if
345 they are going to be used with root privileges, not just the default
346 configuration file.
347
cd25e41d
DW
348DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
349 option (effectively making it always true).
350
261dc43e
DW
351DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
352 files to be used while preserving root privileges.
353
fa32850b
DW
354DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
355 that rogue child processes cannot use them.
356
79d4bc3d
PP
357PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
358 run-time user, instead of root.
359
43236f35 360PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
361 Exim run-time user without dropping privileges.
362
fb08281f
DW
363DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
364 result string, instead of calling string_vformat() twice with the same
365 arguments.
3346ab01 366
74935b98
DW
367DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
368 for other users. Others should always drop root privileges if they use
369 -C on the command line, even for a whitelisted configure file.
370
90b6341f
DW
371DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
372
57730b52
ML
373NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
374
66581d1e 375
465e92cf
JJ
376Exim version 4.72
377-----------------
378
453a6645
PP
379JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
380 $data_path, and $header_path variables; fixed documentation bugs and
381 typos
465e92cf 382
453a6645
PP
383JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
384 exipick to access non-standard spools, including the "frozen" queue
385 (Finput)
edae0343 386
9bd3e22c
NM
387NM/01 Bugzilla 965: Support mysql stored procedures.
388 Patch from Alain Williams
389
bb576ff7
NM
390NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
391
5a1a5845
NM
392NM/03 Bugzilla 955: Documentation fix for max_rcpts.
393 Patch from Andreas Metzler
394
981a9fad
NM
395NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
396 Patch from Kirill Miazine
397
7fc497ee
NM
398NM/05 Bugzilla 671: Added umask to procmail example.
399
1a41defa
JJ
400JJ/03 installed exipick 20100323.0, fixing doc bug
401
a466095c 402NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 403 directory. Notification and patch from Dan Rosenberg.
a466095c 404
94a6bd0b
NM
405TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
406
407TK/02 Improve log output when DKIM signing operation fails.
408
409MH/01 Treat the transport option dkim_domain as a colon separated
410 list, not as a single string, and sign the message with each element,
411 omitting multiple occurences of the same signer.
412
c1b141a8
NM
413NM/07 Null terminate DKIM strings, Null initialise DKIM variable
414 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 415
b26eacf1 416NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
417 Patch by Simon Arlott
418
179c5980 419PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 420 MBX locking. Notification from Dan Rosenberg.
179c5980 421
9bd3e22c 422
7c6d71af
NM
423Exim version 4.71
424-----------------
425
7d9f747b 426TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 427
f013fb92
NM
428NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
429
0eb8eedd
NM
430NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
431
663ee6d9
NM
432NM/03 Bugzilla 847: Enable DNSDB lookup by default.
433
177ebd9b
NM
434NM/04 Bugzilla 915: Flag broken perl installation during build.
435
7c6d71af 436
210f147e
NM
437Exim version 4.70
438-----------------
439
cdd3bb85 440TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 441 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
442
443TK/02 Write list of recipients to X-Envelope-Sender header when building
444 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 445 Hirsch).
cdd3bb85
TK
446
447TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
448 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 449 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
450
451TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
452 by Mark Daniel Reidel <mr@df.eu>.
453
210f147e
NM
454NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
455 When building exim an external PCRE library is now needed -
456 PCRE is a system library on the majority of modern systems.
457 See entry on PCRE_LIBS in EDITME file.
458
deafd5b3
NM
459NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
460 conversation. Added nologin parameter to request.
7d9f747b 461 Patch contributed by Kirill Miazine.
deafd5b3 462
089793a4
TF
463TF/01 Do not log submission mode rewrites if they do not change the address.
464
5f16ca82
TF
465TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
466
dae9d94e 467NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 468 log files in place. Contributed by Roberto Lima.
dae9d94e 469
7d9f747b 470NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 471
06864c44
TF
472TF/03 Bugzilla 615: When checking the local_parts router precondition
473 after a local_part_suffix or local_part_prefix option, Exim now
474 does not use the address's named list lookup cache, since this
475 contains cached lookups for the whole local part.
476
65a7d8c3 477NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 478 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 479
23510047 480TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 481
7d9f747b 482NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 483
7d8eec3a 484NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 485 Patch provided by Jan Srzednicki.
6c588e74 486
89dec7b6
TF
487TF/05 Leading white space used to be stripped from $spam_report which
488 wrecked the formatting. Now it is preserved.
5f28a6e8 489
a99de90c
TF
490TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
491 that they are available at delivery time.
492
e2803e40
TF
493TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
494
7199e1ee
TF
495TF/08 TLS error reporting now respects the incoming_interface and
496 incoming_port log selectors.
497
e276e04b
TF
498TF/09 Produce a more useful error message if an SMTP transport's hosts
499 setting expands to an empty string.
500
ce552449 501NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 502 Patch provided by Phil Pennock.
ce552449 503
e765a0f1 504NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 505 Patch provided by Richard Godbee.
e765a0f1 506
4f054c63 507NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 508 acl_smtp_notquit, added index entry.
4f054c63 509
7d9f747b
PP
510NM/09 Bugzilla 787: Potential buffer overflow in string_format.
511 Patch provided by Eugene Bujak.
24c929a2 512
7d9f747b
PP
513NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
514 accept(). Patch provided by Maxim Dounin.
cf73943b 515
b52bc06e 516NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 517 Patch provided by Phil Pennock.
b52bc06e 518
447de4b0
NM
519NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
520
4c69d561 521NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 522 Patch provided by Brad "anomie" Jorsch.
4c69d561 523
d5c39246 524NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 525 Patch provided by Dean Brooks.
9b989985 526
0b23848a
TK
527TK/05 Add native DKIM support (does not depend on external libraries).
528
8f3414a1 529NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 530 Patch provided by Graeme Fowler.
e2aacdfd 531
fb6f955d
NM
532NM/16 Bugzilla 851: Documentation example syntax fix.
533
534NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 535
7d9f747b
PP
536NM/18 Bugzilla 894: Fix issue with very long lines including comments in
537 lsearch.
dbb0bf41 538
7d9f747b
PP
539NM/19 Bugzilla 745: TLS version reporting.
540 Patch provided by Phil Pennock.
f3766eb5 541
7d9f747b
PP
542NM/20 Bugzilla 167: bool: condition support.
543 Patch provided by Phil Pennock.
36f12725 544
7d9f747b
PP
545NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
546 clients. Patch provided by Phil Pennock.
e6060e2c 547
7d9f747b
PP
548NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
549 Patch provided by Brad "anomie" Jorsch.
5eb690a1 550
7d9f747b
PP
551NM/23 Bugzilla 687: Fix misparses in eximstats.
552 Patch provided by Heiko Schlittermann.
d5c13d66 553
7d9f747b
PP
554NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
555 Patch provided by Heiko Schlittermann.
b2335c0b 556
7d9f747b 557NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 558 plus update to original patch.
f4cd9433 559
7d9f747b 560NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 561
7d9f747b
PP
562NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
563 Patch provided by David Brownlee.
8dc71ab3 564
7d9f747b 565NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 566
7d9f747b 567NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 568
7d9f747b 569NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 570
7d9f747b 571NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 572
17792b53 573NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 574 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 575
7d9f747b
PP
576NM/33 Bugzilla 898: Transport filter timeout fix.
577 Patch by Todd Rinaldo.
52383f8f 578
7d9f747b
PP
579NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
580 Patch by Serge Demonchaux.
5ca6d115 581
7d9f747b
PP
582NM/35 Bugzilla 39: Base64 decode bug fixes.
583 Patch by Jakob Hirsch.
baee9eee 584
7d9f747b 585NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 586
7d9f747b 587NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 588
7d9f747b 589NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 590
7d9f747b 591NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 592
deafd5b3 593
47db1125
NM
594Exim version 4.69
595-----------------
596
4b3504d0
TK
597TK/01 Add preliminary DKIM support. Currently requires a forked version of
598 ALT-N's libdkim that I have put here:
599 http://duncanthrax.net/exim-experimental/
600
601 Note to Michael Haardt: I had to rename some vars in sieve.c. They
602 were called 'true' and it seems that C99 defines that as a reserved
603 keyword to be used with 'bool' variable types. That means you could
604 not include C99-style headers which use bools without triggering
605 build errors in sieve.c.
606
81ea09ca
NM
607NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
608 as mailq or other aliases. Changed the --help handling significantly
609 to do whats expected. exim_usage() emits usage/help information.
610
f13cddcb
SC
611SC/01 Added the -bylocaldomain option to eximstats.
612
7d9f747b 613NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 614
7d9f747b 615NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 616
7d9f747b 617NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
618
619
eb4c0de6
PH
620Exim version 4.68
621-----------------
622
623PH/01 Another patch from the Sieve maintainer.
624
6a3bceb1
PH
625PH/02 When an IPv6 address is converted to a string for single-key lookup
626 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
627 dots are used instead of colons so that keys in lsearch files need not
628 contain colons. This was done some time before quoting was made available
629 in lsearch files. However, iplsearch files do require colons in IPv6 keys
630 (notated using the quote facility) so as to distinguish them from IPv4
631 keys. This meant that lookups for IP addresses in host lists did not work
632 for iplsearch lookups.
633
634 This has been fixed by arranging for IPv6 addresses to be expressed with
635 colons if the lookup type is iplsearch. This is not incompatible, because
636 previously such lookups could never work.
637
638 The situation is now rather anomolous, since one *can* have colons in
639 ordinary lsearch keys. However, making the change in all cases is
640 incompatible and would probably break a number of configurations.
641
2e30fa9d
TK
642TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
643 version.
644
0806a9c5
MH
645MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
646 conversion specification without a maximum field width, thereby enabling
647 a rogue spamd server to cause a buffer overflow. While nobody in their
648 right mind would setup Exim to query an untrusted spamd server, an
649 attacker that gains access to a server running spamd could potentially
650 exploit this vulnerability to run arbitrary code as the Exim user.
651
ae276964
TK
652TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
653 $primary_hostname instead of what libspf2 thinks the hosts name is.
654
0f2cbd1b
MH
655MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
656 a directory entry by the name of the lookup key. Previously, if a
657 symlink pointed to a non-existing file or a file in a directory that
658 Exim lacked permissions to read, a lookup for a key matching that
659 symlink would fail. Now it is enough that a matching directory entry
660 exists, symlink or not. (Bugzilla 503.)
661
2b85bce7
PH
662PH/03 The body_linecount and body_zerocount variables are now exported in the
663 local_scan API.
664
93655c46
PH
665PH/04 Added the $dnslist_matched variable.
666
6c512171
PH
667PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
668 This means they are set thereafter only if the connection becomes
669 encrypted.
670
671PH/06 Added the client_condition to authenticators so that some can be skipped
672 by clients under certain conditions.
673
aa6dc513
PH
674PH/07 The error message for a badly-placed control=no_multiline_responses left
675 "_responses" off the end of the name.
676
a96603a0
PH
677PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
678
8f240103
PH
679PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
680 (without spaces) instead of just copying the configuration text.
681
682PH/10 Added the /noupdate option to the ratelimit ACL condition.
683
d677b2f2
PH
684PH/11 Added $max_received_linelength.
685
d52120f2
PH
686PH/12 Added +ignore_defer and +include_defer to host lists.
687
64f2600a
PH
688PH/13 Installed PCRE version 7.2. This needed some changes because of the new
689 way in which PCRE > 7.0 is built.
690
8669f003
PH
691PH/14 Implemented queue_only_load_latch.
692
a4dc33a8
PH
693PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
694 MAIL command. The effect was to mangle the value on 64-bit systems.
695
d6a60c0f
PH
696PH/16 Another patch from the Sieve maintainer.
697
8f128379
PH
698PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
699
8932dffe
PH
700PH/18 If a system quota error occurred while trying to create the file for
701 a maildir delivery, the message "Mailbox is full" was not appended to the
702 bounce if the delivery eventually timed out. Change 4.67/27 below applied
703 only to a quota excession during the actual writing of the file.
d6a60c0f 704
ddea74fa 705PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
706 characters?) which causes problems in log lines. The DN values are now
707 passed through string_printing() before being added to log lines.
708
ddea74fa 709PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
710 and InterBase are left for another time.)
711
ddea74fa
PH
712PH/21 Added message_body_newlines option.
713
ce9f225c
PH
714PH/22 Guard against possible overflow in moan_check_errorcopy().
715
19897d52
PH
716PH/23 POSIX allows open() to be a macro; guard against that.
717
bc64a74d
PH
718PH/24 If the recipient of an error message contained an @ in the local part
719 (suitably quoted, of course), incorrect values were put in $domain and
720 $local_part during the evaluation of errors_copy.
721
eb4c0de6 722
b4ed4da0
PH
723Exim version 4.67
724-----------------
725
22ad45c9
MH
726MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
727 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
728 Jan Srzednicki.
729
b4ed4da0
PH
730PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
731 issue a MAIL command.
732
431b7361
PH
733PH/02 In an ACL statement such as
734
735 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
736
737 if a client was not listed at all, or was listed with a value other than
738 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
739 the condition was not true (as it should be), so access was not denied.
740 The bug was that the ! inversion was incorrectly passed on to the second
741 item. This has been fixed.
742
743PH/03 Added additional dnslists conditions == and =& which are different from
744 = and & when the dns lookup returns more than one IP address.
745
83da1223
PH
746PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
747 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
748
54fc8428
PH
749PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
750 FSYNC, which compiles an option called disable_fsync that allows for
751 bypassing fsync(). The documentation is heavily laced with warnings.
752
34c5e8dd
SC
753SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
754
bbe15da8
PH
755PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
756 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
757 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
758 including adding "make clean"; (3) Added -fPIC when compiling the test
759 dynamically loaded module, to get rid of a warning.
760
0e8a9471
MH
761MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
762 message fails, move_frozen_messages = true and ignore_bounce_errors_after
763 = 0s. The bug is otherwise harmless.
764
f0872424
PH
765PH/07 There was a bug in the dovecot authenticator such that the value of
766 $auth1 could be overwritten, and so not correctly preserved, after a
767 successful authentication. This usually meant that the value preserved by
768 the server_setid option was incorrect.
769
b01dd148
PH
770PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
771
6bf342e1
PH
772PH/09 Installed PCRE release 7.0.
773
273f34d0
PH
774PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
775 run for batched SMTP input. It is now run at the start of every message
776 in the batch. While fixing this I discovered that the process information
777 (output by running exiwhat) was not always getting set for -bs and -bS
778 input. This is fixed, and it now also says "batched" for BSMTP.
779
cf8b11a5
PH
780PH/11 Added control=no_pipelining.
781
41c7c167
PH
782PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
783 patch, slightly modified), and move the expansion of helo_data till after
784 the connection is made in the smtp transport (so it can use these
785 values).
786
9c57cbc0
PH
787PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
788
f3f065bb
PH
789PH/14 Added log_selector = +pid.
790
047bdd8c
PH
791PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
792
0ce9abe6
PH
793PH/16 Add ${if forany and ${if forall.
794
0e22dfd1
PH
795PH/17 Added dsn_from option to vary the From: line in DSNs.
796
4c590bd1
PH
797PH/18 Flush SMTP output before performing a callout, unless control =
798 no_callout_flush is set.
799
09945f1e
PH
800PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
801 was true (the default) a successful delivery failed to delete the retry
802 item, thus causing premature timeout of the address. The bug is now
803 fixed.
804
c51b8e75
PH
805PH/20 Added hosts_avoid_pipelining to the smtp transport.
806
e28326d8
PH
807PH/21 Long custom messages for fakedefer and fakereject are now split up
808 into multiline reponses in the same way that messages for "deny" and
809 other ACL rejections are.
810
75b1493f
PH
811PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
812 with slight modification.
813
7c5214ec
PH
814PH/23 Applied sieve patches from the maintainer "tracking the latest notify
815 draft, changing the syntax and factoring some duplicate code".
816
4311097e
PH
817PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
818 for deliveries of the second and subsequent messages over the same SMTP
819 connection.
820
29f89cad
PH
821PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
822 ${reduce, with only minor "tidies".
823
5e687460
SC
824SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
825
c3611384
PH
826PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
827 expansion side effects.
828
5a11a7b4
PH
829PH/27 When a message times out after an over-quota error from an Exim-imposed
830 quota, the bounce message says "mailbox is full". This message was not
831 being given when it was a system quota that was exceeded. It now should
832 be the same.
833
0e20aff9
MH
834MH/03 Made $recipients available in local_scan(). local_scan() already has
835 better access to the recipient list through recipients_list[], but
836 $recipients can be useful in postmaster-provided expansion strings.
837
ca86f471
PH
838PH/28 The $smtp_command and $smtp_command_argument variables were not correct
839 in the case of a MAIL command with additional options following the
840 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
841 were accidentally chopped off.
842
a14e5636
PH
843PH/29 SMTP synchronization checks are implemented when a command is read -
844 there is a check that no more input is waiting when there shouldn't be
845 any. However, for some commands, a delay in an ACL can mean that it is
846 some time before the response is written. In this time, more input might
847 arrive, invalidly. So now there are extra checks after an ACL has run for
848 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
849 pipelining has not been advertised.
850
ec95d1a6
PH
851PH/30 MH's patch to allow iscntrl() characters to be list separators.
852
42855d71
PH
853PH/31 Unlike :fail:, a custom message specified with :defer: was not being
854 returned in the SMTP response when smtp_return_error_details was false.
855 This has been fixed.
856
57c2c631
PH
857PH/32 Change the Dovecot authenticator to use read() and write() on the socket
858 instead of the C I/O that was originally supplied, because problems were
859 reported on Solaris.
860
58c01c94
PH
861PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
862 Exim which did not show up earlier: it was assuming that a call to
863 SSL_CTX_set_info_callback() might give an error value. In fact, there is
864 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
865 was a macro that became an assignment, so it seemed to work. This has
866 changed to a proper function call with a void return, hence the compile
867 error. Exim's code has been fixed.
868
dee5a20a
PH
869PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
870 cpus.
871
d2ee6114
PH
872PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
873
b2d5182b
PH
874PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
875
79749a79
PH
876PH/37 If a message is not accepted after it has had an id assigned (e.g.
877 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
878 "Completed" line in the log. When some messages of this type were
879 selected by exigrep, they were listed as "not completed". Others were
880 picked up by some special patterns. I have improved the selection
881 criteria to be more general.
79749a79 882
c456d9bb
PH
883PH/38 The host_find_failed option in the manualroute router can now be set
884 to "ignore", to completely ignore a host whose IP address cannot be
885 found. If all hosts are ignored, the behaviour is controlled by the new
886 host_all_ignored option.
887
cd9868ec
PH
888PH/39 In a list of hosts for manualroute, if one item (either because of multi-
889 homing or because of multiple MX records with /mx) generated more than
890 one IP address, and the following item turned out to be the local host,
891 all the secondary addresses of the first item were incorrectly removed
892 from the list, along with the local host and any following hosts (which
893 is what is supposed to happen).
894
ebeaf996
PH
895PH/40 When Exim receives a message, it writes the login name, uid, and gid of
896 whoever called Exim into the -H file. In the case of the daemon it was
897 behaving confusingly. When first started, it used values for whoever
898 started the daemon, but after a SIGHUP it used the Exim user (because it
899 calls itself on a restart). I have changed the code so that it now always
900 uses the Exim user.
901
2679d413
PH
902PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
903 message are rejected with the same error (e.g. no authentication or bad
904 sender address), and a DATA command is nevertheless sent (as can happen
905 with PIPELINING or a stupid MUA), the error message that was given to the
906 RCPT commands is included in the rejection of the DATA command. This is
907 intended to be helpful for MUAs that show only the final error to their
908 users.
909
84024b72
PH
910PH/42 Another patch from the Sieve maintainer.
911
8005d38e
SC
912SC/02 Eximstats - Differentiate between permanent and temporary rejects.
913 Eximstats - Fixed some broken HTML links and added missing column headers
914 (Jez Hancock).
915 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
916 columns for Rejects, Temp Rejects, Ham, and Spam rows.
917
3298c6c6
SC
918SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
919
a43a27c5
PH
920PH/43 Yet another patch from the Sieve maintainer.
921
58eb016e 922PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
923 the response to the final '.' that terminates a message, but only in the
924 case where the client has not sent further data following the '.'
925 (unfortunately, this is allowed). However, in many cases there won't be
926 any further data because there won't be any more messages to send. A call
927 to select() can be used: if it shows that the input is "ready", there is
928 either input waiting, or the socket has been closed. An attempt to read
929 the next input character can distinguish the two cases. Previously, Exim
58eb016e 930 would have sent an OK response which the client would never have see.
563b63fa
PH
931 This could lead to message repetition. This fix should cure that, at
932 least in a lot of common cases.
58eb016e 933
b43a74ea
PH
934PH/45 Do not advertise STARTTLS in response to HELP unless it would be
935 advertised in response to EHLO.
936
b4ed4da0 937
5dd1517f
PH
938Exim version 4.66
939-----------------
940
941PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
942 fixed by 4.65/MH/01 (is this a record?) are fixed:
943
944 (i) An empty string was always treated as zero by the numeric comparison
945 operators. This behaviour has been restored.
946
947 (ii) It is documented that the numeric comparison operators always treat
948 their arguments as decimal numbers. This was broken in that numbers
949 starting with 0 were being interpreted as octal.
950
951 While fixing these problems I realized that there was another issue that
952 hadn't been noticed. Values of message_size_limit (both the global option
953 and the transport option) were treated as octal if they started with 0.
954 The documentation was vague. These values are now always treated as
955 decimal, and I will make that clear in the documentation.
956
957
93cfa765
TK
958Exim version 4.65
959-----------------
960
961TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
962 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
963 versions. (#438)
964
d6066548
MH
965MH/01 Don't check that the operands of numeric comparison operators are
966 integers when their expansion is in "skipping" mode (fixes bug
967 introduced by 4.64-PH/07).
968
4362ff0d
PH
969PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
970 child addresses, Exim now panics and dies. Previously, because the count
971 is held in a short int, deliveries were likely to be lost. As such a
972 large number of recipients for a single message is ridiculous
973 (performance will be very, very poor), I have chosen to impose a limit
974 rather than extend the field.
975
93cfa765 976
944e9e9c
TF
977Exim version 4.64
978-----------------
aa41d2de 979
21d74bd9
TK
980TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
981 leftover -K file (the existence of which was triggered by #402).
982 While we were at it, introduced process PID as part of the -K
983 filename. This should rule out race conditions when creating
984 these files.
985
986TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
987 processing considerably. Previous code took too long for large mails,
988 triggering a timeout which in turn triggers #401.
989
990TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
991 in the DK code in transports.c. sendfile() is not really portable,
992 hence the _LINUX specificness.
944e9e9c
TF
993
994TF/01 In the add_headers option to the mail command in an Exim filter,
995 there was a bug that Exim would claim a syntax error in any
996 header after the first one which had an odd number of characters
997 in the field name.
998
2b1c6e3a
PH
999PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
1000 callout verification, Exim cached a "reject" for the entire domain. This
1001 is correct for most verifications, but it is not correct for a recipient
1002 verification with use_sender or use_postmaster set, because in that case
1003 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
1004 case of MAIL FROM:<> rejection from other early rejections (e.g.
1005 rejection of HELO). When verifying a recipient using a non-null MAIL
1006 address, the cache is ignored if it shows MAIL FROM:<> rejection.
1007 Whatever the result of the callout, the value of the domain cache is
1008 left unchanged (for any other kind of callout, getting as far as trying
1009 RCPT means that the domain itself is ok).
1010
1f872c80
PH
1011PH/02 Tidied a number of unused variable and signed/unsigned warnings that
1012 gcc 4.1.1 threw up.
1013
1014PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1015 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1016 session, the daemon ignores ECONNECT errors and logs others; it now
1017 ignores EPIPE as well.
1018
d203e649
PH
1019PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1020 (quoted-printable decoding).
1021
cc2ed8f7 1022PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 1023 later the small subsequent patch to fix an introduced bug.
f951fd57 1024
ddfcd446
PH
1025PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1026
d45b1de8
PH
1027PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1028
1029PH/08 An error is now given if message_size_limit is specified negative.
1030
38a0a95f 1031PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 1032 to be given (somewhat) arbitrary names.
38a0a95f 1033
a2405d83
JJ
1034JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1035 in 4.64-PH/09.
1036
1037JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1038 miscellaneous code fixes
1039
6ea85e9a
PH
1040PH/10 Added the log_reject_target ACL modifier to specify where to log
1041 rejections.
1042
26da7e20
PH
1043PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1044 hostname. This is wrong, because it relates to the incoming message (and
1045 probably the interface on which it is arriving) and not to the outgoing
1046 callout (which could be using a different interface). This has been
1047 changed to use the value of the helo_data option from the smtp transport
1048 instead - this is what is used when a message is actually being sent. If
1049 there is no remote transport (possible with a router that sets up host
1050 addresses), $smtp_active_hostname is used.
6ea85e9a 1051
14aa5a05 1052PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 1053 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
1054 (a) The code assumed that strncpy() returns a negative number on buffer
1055 overflow, which isn't the case. Replaced with Exim's string_format()
1056 function.
1057 (b) There were several signed/unsigned issues. I just did the minimum
1058 hacking in of casts. There is scope for a larger refactoring.
1059 (c) The code used strcasecmp() which is not a standard C function.
1060 Replaced with Exim's strcmpic() function.
1061 (d) The code set only $1; it now sets $auth1 as well.
1062 (e) A simple test gave the error "authentication client didn't specify
1063 service in request". It would seem that Dovecot has changed its
1064 interface. Fortunately there's a specification; I followed it and
1065 changed what the client sends and it appears to be working now.
1066
ff75a1f7
PH
1067PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1068 decoding.
1069
e6f6568e
PH
1070PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1071 address A is aliased to B and C, where B exists and C does not. Without
1072 -v the output is "A verified" because verification stops after a
1073 successful redirection if more than one address is generated. However,
1074 with -v the child addresses are also verified. Exim was outputting "A
1075 failed to verify" and then showing the successful verification for C,
1076 with its parentage. It now outputs "B failed to verify", showing B's
1077 parentage before showing the successful verification of C.
1078
d6f6e0dc
PH
1079PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1080 look up a TXT record in a specific list after matching in a combined
1081 list.
1082
322050c2
PH
1083PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1084 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1085 they consult the DNS. I had assumed they would set it the way they
1086 wanted; and indeed my experiments on Linux seem to show that in some
1087 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1088 To be on the safe side, however, I have now made the interface to
1089 host_find_byname() similar to host_find_bydns(), with an argument
1090 containing the DNS resolver options. The host_find_byname() function now
1091 sets these options at its start, just as host_find_bydns() does. The smtp
1092 transport options dns_qualify_single and dns_search_parents are passed to
1093 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1094 of host_find_byname() use the default settings of RES_DEFNAMES
1095 (qualify_single) but not RES_DNSRCH (search_parents).
1096
08955dd3
PH
1097PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1098 spool_read_header() do less string testing, by means of a preliminary
1099 switch on the second character of optional "-foo" lines. (This is
1100 overdue, caused by the large number of possibilities that now exist.
1101 Originally there were few.) While I was there, I also converted the
1102 str(n)cmp tests so they don't re-test the leading "-" and the first
1103 character, in the hope this might squeeze out yet more improvement.
1104
1eccaa59
PH
1105PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1106 flag allowing group syntax was set by the header_syntax check but not
1107 turned off, possible causing trouble later; (2) The flag was not being
1108 set at all for the header_verify test, causing "group"-style headers to
1109 be rejected. I have now set it in this case, and also caused header_
1110 verify to ignore an empty address taken from a group. While doing this, I
1111 came across some other cases where the code for allowing group syntax
1112 while scanning a header line wasn't quite right (mostly, not resetting
1113 the flag correctly in the right place). These bugs could have caused
1114 trouble for malformed header lines. I hope it is now all correct.
1115
602e59e5
PH
1116PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1117 with the "reply" argument non-NULL. The code, however (which originally
1118 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1119 but it didn't always do it. This confused somebody who was copying the
1120 code for some other use. I have removed all the tests.
1121
411ef850
PH
1122PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1123 feature that was used to support insecure browsers during the U.S. crypto
1124 embargo. It requires special client support, and Exim is probably the
1125 only MTA that supported it -- and would never use it because real RSA is
1126 always available. This code has been removed, because it had the bad
1127 effect of slowing Exim down by computing (never used) parameters for the
1128 RSA_EXPORT functionality.
1129
7befa435
PH
1130PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1131 authenticator to fail if there's a tab character in the incoming data
1132 (there should never be unless someone is messing about, as it's supposed
1133 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1134 if the connection is using TLS or if the remote IP is the same as the
1135 local IP, and the "valid-client-cert option" if a client certificate has
1136 been verified.
1137
48da4259 1138PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1139 authenticators. This can be used for authorization after authentication
1140 succeeds. (In the case of plaintext, it servers for both authentication
1141 and authorization.)
1142
48da4259
PH
1143PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1144 if any retry times were supplied.
1145
d1d5595c
PH
1146PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1147 connection, where there is no client IP address to check. In this
1148 situation, the verify now always succeeds.
1149
0ef732d9
PH
1150PH/25 Applied John Jetmore's -Mset patch.
1151
328895cc
PH
1152PH/26 Added -bem to be like -Mset, but loading a message from a file.
1153
fd700877
PH
1154PH/27 In a string expansion for a processed (not raw) header when multiple
1155 headers of the same name were present, leading whitespace was being
1156 removed from all of them, but trailing whitespace was being removed only
1157 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1158 before concatenation. Completely empty headers in a concatenation (as
1159 before) are ignored.
fd700877 1160
8dce1a6f
PH
1161PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1162 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1163
17af4a17
PH
1164PH/29 [Removed. This was a change that I later backed out, and forgot to
1165 correct the ChangeLog entry (that I had efficiently created) before
1166 committing the later change.]
f6c332bd
PH
1167
1168PH/30 Exim was sometimes attempting to deliver messages that had suffered
1169 address errors (4xx response to RCPT) over the same connection as other
1170 messages routed to the same hosts. Such deliveries are always "forced",
1171 so retry times are not inspected. This resulted in far too many retries
1172 for the affected addresses. The effect occurred only when there were more
1173 hosts than the hosts_max_try setting in the smtp transport when it had
1174 the 4xx errors. Those hosts that it had tried were not added to the list
1175 of hosts for which the message was waiting, so if all were tried, there
1176 was no problem. Two fixes have been applied:
1177
1178 (i) If there are any address or message errors in an SMTP delivery, none
1179 of the hosts (tried or untried) are now added to the list of hosts
1180 for which the message is waiting, so the message should not be a
1181 candidate for sending over the same connection that was used for a
1182 successful delivery of some other message. This seems entirely
1183 reasonable: after all the message is NOT "waiting for some host".
1184 This is so "obvious" that I'm not sure why it wasn't done
1185 previously. Hope I haven't missed anything, but it can't do any
1186 harm, as the worst effect is to miss an optimization.
1187
1188 (ii) If, despite (i), such a delivery is accidentally attempted, the
1189 routing retry time is respected, so at least it doesn't keep
1190 hammering the server.
1191
c1114884
PH
1192PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1193 in ${readsocket because some servers need this prod.
1194
7a0743eb
PH
1195PH/32 Added some extra debug output when updating a wait-xxx database.
1196
0d85fa3f
PH
1197PH/33 The hint "could be header name not terminated by colon", which has been
1198 given for certain expansion errors for a long time, was not being given
1199 for the ${if def:h_colon_omitted{... case.
1200
1bf43b78
PH
1201PH/34 The spec says: "With one important exception, whenever a domain list is
1202 being scanned, $domain contains the subject domain." There was at least
1203 one case where this was not true.
1204
520de300
PH
1205PH/35 The error "getsockname() failed: connection reset by peer" was being
1206 written to the panic log as well as the main log, but it isn't really
1207 panic-worthy as it just means the connection died rather early on. I have
1208 removed the panic log writing for the ECONNRESET error when getsockname()
1209 fails.
1210
48c7f9e2
PH
1211PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1212 runs only) independently of the message's sender address. This meant
1213 that, if the 4xx error was in fact related to the sender, a different
1214 message to the same recipient with a different sender could confuse
1215 things. In particualar, this can happen when sending to a greylisting
1216 server, but other circumstances could also provoke similar problems.
1217 I have changed the default so that the retry time for these errors is now
1218 based a combination of the sender and recipient addresses. This change
1219 can be overridden by setting address_retry_include_sender=false in the
1220 smtp transport.
1221
99ea1c86
PH
1222PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1223 remote server are returned as part of bounce messages. This was not
1224 happening for LMTP over a pipe (the lmtp transport), but now it is the
1225 same for both kinds of LMTP.
1226
a2042e78
PH
1227PH/38 Despite being documented as not happening, Exim was rewriting addresses
1228 in header lines that were in fact CNAMEs. This is no longer the case.
1229
4fbcfc2e
PH
1230PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1231 and queue runs started by the daemon processed all messages. This has
1232 been fixed so that -R and -S can now usefully be given with -q<time>.
1233
aa41d2de
PH
1234PH/40 Import PCRE release 6.7 (fixes some bugs).
1235
af561417
PH
1236PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1237
3cc66b45
PH
1238PH/42 Give an error if -q is specified more than once.
1239
194cc0e4
PH
1240PH/43 Renamed the variables $interface_address and $interface_port as
1241 $received_ip_address and $received_port, to make it clear that these
1242 values apply to message reception, and not to the outgoing interface when
1243 a message is delivered. (The old names remain recognized, of course.)
1244
a401ddaa
PH
1245PH/44 There was no timeout on the connect() call when using a Unix domain
1246 socket in the ${readsocket expansion. There now is.
1247
4e88a19f
PH
1248PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1249 be meaningful with "accept".
1250
d7d7b289
SC
1251SC/01 Eximstats V1.43
1252 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1253
1254SC/02 Eximstats V1.44
1255 Use a glob alias rather than an array ref in the generated
1256 parser. This improves both readability and performance.
1257
1258SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1259 Collect SpamAssassin and rejection statistics.
1260 Don't display local sender or destination tables unless
1261 there is data to show.
1262 Added average volumes into the top table text output.
1263
1264SC/04 Eximstats V1.46
1265 Collect data on the number of addresses (recipients)
1266 as well as the number of messages.
1267
1268SC/05 Eximstats V1.47
1269 Added 'Message too big' to the list of mail rejection
1270 reasons (thanks to Marco Gaiarin).
1271
1272SC/06 Eximstats V1.48
1273 Mainlog lines which have GMT offsets and are too short to
1274 have a flag are now skipped.
1275
1276SC/07 Eximstats V1.49 (Alain Williams)
1277 Added the -emptyok flag.
1278
1279SC/08 Eximstats V1.50
1280 Fixes for obtaining the IP address from reject messages.
1281
0ea2a468
JJ
1282JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1283 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1284 whitesspace changes from 4.64-PH/27
1285
1286JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1287 match 4.64-PH/13
1288
1289JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1290 are found, allow negative numbers in numeric criteria)
1291
1292JJ/06 exipick.20061117.2, added new $message_body_missing variable
1293
1294JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1295 to match changes made in 4.64-PH/43
1296
8a10f5a4
PH
1297PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1298
30e18802
PH
1299PH/47 Put in an explicit test for a DNS lookup of an address record where the
1300 "domain" is actually an IP address, and force a failure. This locks out
1301 those revolvers/nameservers that support "A-for-A" lookups, in
1302 contravention of the specifications.
1303
55728a4f
PH
1304PH/48 When a host name was looked up from an IP address, and the subsequent
1305 forward lookup of the name timed out, the host name was left in
1306 $sender_host_name, contrary to the specification.
d7d7b289 1307
d7837193
PH
1308PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1309 restricted to single-key lookups, Exim was not diagnosing an error if
1310 * or *@ was used with a query-style lookup.
1311
87054a31
PH
1312PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1313
ea2c01d2
MH
1314MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1315 long ago, but noone interested enough thought of it. Let's just say that
1316 the "1.1" means that there are some new functions that weren't there at
1317 some point in the past.
1318
e4fa6968
PH
1319PH/51 Error processing for expansion failure of helo_data from an smtp
1320 transport during callout processing was broken.
1321
56f5d9bd
PH
1322PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1323 tested/used via the -bh/-bhc/-bs options.
1324
922e1c28
PH
1325PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1326 bug, fixed in subsequent PCRE releases).
1327
21eb6e72
PH
1328PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1329 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1330
a0540757
PH
1331PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1332
944e9e9c 1333
478be7b0
SC
1334Exim version 4.63
1335-----------------
1336
1337SC/01 Use a glob alias rather than an array ref in eximstats generated
1338 parser. This improves both readability and performance.
1339
1340SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1341 Don't display local sender or destination tables in eximstats unless
1342 there is data to show.
1343 Added average volumes into the eximstats top table text output.
1344
1345SC/03 Collect data on the number of addresses (recipients) as well
1346 as the number of messages in eximstats.
1347
2b965a65
TF
1348TF/01 Correct an error in the documentation for the redirect router. Exim
1349 does (usually) call initgroups() when daemonizing.
478be7b0 1350
45b91596
PH
1351TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1352 with consistent privilege compared to when running as a daemon.
478be7b0 1353
c59f5781
TF
1354TF/03 Note in the spec that $authenticated_id is not set for local
1355 submissions from trusted users.
1356
90fc3069
TF
1357TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1358 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1359
6083aca0
TF
1360TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1361 by adding some example configuration directives to the default
1362 configuration file. A little bit of work is required to uncomment the
1363 directives and define how usernames and passwords are checked, but
1364 there is now a framework to start from.
1365
765b530f
PH
1366PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1367 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1368 without this. I don't know how relevant this is to other LDAP libraries.
1369
4e167a8c
PH
1370PH/02 Add the verb name to the "unknown ACL verb" error.
1371
4608d683
PH
1372PH/03 Magnus Holmgren's patch for filter_prepend_home.
1373
b8dc3e4a
PH
1374PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1375
5418e93b
PH
1376PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1377 directory not expanded when it should be if an expanded home directory
1378 was set for the address (which is overridden by the transport).
1379
b4a9bda2
PH
1380PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1381 libradius.
1382
45b91596
PH
1383PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1384 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1385 because it is too late at that time, and has no effect.
1386
5547e2c5
PH
1387PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1388 security issue with \' (bugzilla #107). I could not use the
1389 PQescapeStringConn() function, because it needs a PGconn value as one of
1390 its arguments.
1391
dbcef0ea
PH
1392PH/08 When testing addresses using -bt, indicate those final addresses that
1393 are duplicates that would not cause an additional delivery. At least one
1394 person was confused, thinking that -bt output corresponded to deliveries.
1395 (Suppressing duplicates isn't a good idea as you lose the information
1396 about possibly different redirections that led to the duplicates.)
1397
25257489
PH
1398PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1399 systems where poll() doesn't work, in particular OS X.
1400
c816d124
PH
1401PH/10 Added more information to debugging output for retry time not reached.
1402
a9ccd69a
PH
1403PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1404 operations in malware.c.
1405
75fa1910
PH
1406PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1407 signatures.
1408
a7d7aa58
PH
1409PH/13 If write_rejectlog was set false when logging was sent to syslog with
1410 syslog_duplication set false, log lines that would normally be written
1411 both the the main log and to the reject log were not written to syslog at
1412 all.
1413
42119b09
PH
1414PH/14 In the default configuration, change the use of "message" in ACL warn
1415 statements to "add_header".
1416
41609df5
PH
1417PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1418 not followed by a command (e.g. "seen endif").
1419
a5bd321b
PH
1420PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1421 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1422 latter.
1423
e85a7ad5 1424PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1425 so that it is now:
1426
e85a7ad5
PH
1427 ${if or { \
1428 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1429 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1430 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1431 }{no}{yes}}
1432
e85a7ad5
PH
1433 The Auto-Submitted: and various List- headers are standardised, whereas I
1434 don't think Precedence: ever was.
5dff5817 1435
d8fe1c03
PH
1436PH/18 Refactored debugging code in route_finduser() to show more information,
1437 in particular, the error code if getpwnam() issues one.
1438
16282d2b
PH
1439PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1440 This is apparently needed in addition to the PH/07 change above to avoid
1441 any possible encoding problems.
1442
35d40a98
PH
1443PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1444 but not after initializing Perl.
1445
034d99ab
PH
1446PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1447 output them only if debugging. By default they are written stderr,
1448 apparently, which is not desirable.
1449
6ec97b1b
PH
1450PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1451 queries.
1452
e22ca4ac
JJ
1453JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1454 --not options
1455
1456JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1457
33d73e3b
PH
1458PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1459 authenticated or an ident call has been made. Suppress the default
1460 values for $authenticated_id and $authenticated_sender (but permit -oMai
1461 and -oMas) when testing with -bh.
1462
9ecb03f3
PH
1463PH/24 Re-jigged the order of the tests in the default configuration so that the
1464 tests for valid domains and recipients precede the DNS black list and CSA
1465 tests, on the grounds that those ones are more expensive.
1466
084efe8d
PH
1467PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1468 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1469 This bug exists in every version of Exim that I still have, right back to
1470 0.12.
1471
366fc9f0
PH
1472PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1473 However, an attempt to turn on case-sensitivity in a regex key by
1474 including (?-i) didn't work because the subject string was already
1475 lowercased, and the effects were non-intuitive. It turns out that a
1476 one-line patch can be used to allow (?-i) to work as expected.
1477
c59f5781 1478
c887c79e
TF
1479Exim version 4.62
1480-----------------
1481
1482TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1483 other effects) broke the use of negated acl sub-conditions.
1484
1cce3af8
PH
1485PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1486 patch).
1487
afb3eaaf
PH
1488PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1489 "Deny" causes Exim to reject the incoming connection with a 554 error.
1490 Unfortunately, if there is a major crisis, such as a disk failure,
1491 tcp-wrappers gives "deny", whereas what one would like would be some
1492 kind of temporary error. A kludge has been added to help with this.
1493 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1494 554 error is used if errno is still zero or contains ENOENT (which occurs
1495 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1496 451 error is used.
1497
e173618b
PH
1498PH/03 Add -lutil to the default FreeBSD LIBS setting.
1499
dd16e114
PH
1500PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1501 errors. Otherwise a message that provokes a temporary error (when other
1502 messages do not) can cause a whole host to time out.
1503
f7fd3850
PH
1504PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1505 addresses were routed directly to files or pipes from a redirect router.
1506 File deliveries just didn't batch; pipe deliveries might have suffered
1507 odd errors.
1508
d87df92c
PH
1509PH/06 A failure to get a lock for a hints database would erroneously always say
1510 "Failed to get write lock", even when it was really a read lock.
1511
7e9f683d
PH
1512PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1513 of 0600. This has been changed to use the value of the lockfile_mode
1514 option (which defaults to 0600).
1515
bfad5236
PH
1516PH/08 Applied small patch from the Sieve maintainer.
1517
01c490df
PH
1518PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1519 folder from quota calculations, a direct delivery into this folder messed
1520 up the contents of the maildirsize file. This was because the regex was
1521 used only to exclude .Trash (or whatever) when the size of the mailbox
1522 was calculated. There was no check that a delivery was happening into an
1523 excluded directory. This bug has been fixed by ignoring all quota
1524 processing for deliveries into excluded directories.
1525
d6629cdc
PH
1526PH/10 Added the maildirfolder_create_regex option to appendfile.
1527
1cce3af8 1528
214e2000
PH
1529Exim version 4.61
1530-----------------
1531
1532PH/01 The code for finding all the local interface addresses on a FreeBSD
1533 system running IPv6 was broken. This may well have applied to all BSD
1534 systems, as well as to others that have similar system calls. The broken
1535 code found IPv4 interfaces correctly, but gave incorrect values for the
1536 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1537 that it would not match correctly against @[] and not recognize the IPv6
1538 addresses as local.
1539
f9daeae0
PH
1540PH/02 The ipliteral router was not recognizing addresses of the form user@
1541 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1542
7e66e54d
PH
1543PH/03 Added disable_ipv6.
1544
c8ea1597
PH
1545PH/04 Changed $reply_address to use the raw form of the headers instead of the
1546 decoded form, because it is most often used to construct To: headers
1547 lines in autoreplies, and the decoded form may well be syntactically
1548 invalid. However, $reply_address has leading white space removed, and all
1549 newlines turned into spaces so that the autoreply transport does not
1550 grumble.
1551
911f6fde
PH
1552PH/05 If group was specified without a user on a router, and no group or user
1553 was specified on a transport, the group from the router was ignored.
1554
47ca6d6c
PH
1555PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1556 for visible compile-time settings that can be used to change these
1557 numbers, for those that want even more. Backwards compatibility with old
1558 spool files has been maintained. However, going back to a previous Exim
1559 release will lost any variables that are in spool files.
1560
ed0e9820
PH
1561PH/07 Two small changes when running in the test harness: increase delay when
1562 passing a TCP/IP connection to a new process, in case the original
1563 process has to generate a bounce, and remove special handling of
1564 127.0.0.2 (sic), which is no longer necessary.
1565
eff37e47
PH
1566PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1567 be the same on different OS.
1568
1921d2ea
PH
1569PH/09 Moved a debug statement in filter processing to avoid a race problem when
1570 testing.
1571
b3f69ca8
JJ
1572JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1573 whether --show-vars was specified or not
1574
1575JJ/02 exipick: Added support for new ACL variable spool format introduced
1576 in 4.61-PH/06
1577
424a1c63
PH
1578PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1579 syntactically invalid From: or Reply-to: line, and a filter used this to
1580 generate an autoreply, and therefore failed to obtain an address for the
1581 autoreply, Exim could try to deliver to a non-existent relative file
1582 name, causing unrelated and misleading errors. What now happens is that
1583 it logs this as a hard delivery error, but does not attempt to create a
1584 bounce message.
1585
7a100415
PH
1586PH/11 The exinext utility has a -C option for testing purposes, but although
1587 the given file was scanned by exinext itself; it wasn't being passed on
1588 when Exim was called.
1589
19b9dc85
PH
1590PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1591 an end-of-file indication when reading a command response.
1592
309bd837
PH
1593PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1594 compiled. In many other places in Exim, IPv6 addresses are always
1595 recognized, so I have changed this. It also means that IPv4 domain
1596 literals of the form [IPV4:n.n.n.n] are now always recognized.
1597
59e82a2a
PH
1598PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1599 used if the router is not running as root, for example, when verifying at
1600 ACL time, or when using -bh. The debugging output from this situation was
1601 non-existent - all you got was a failure to exec. I have made two
1602 changes:
1603
1604 (a) Failures to set uid/gid, the current directory, or a process leader
1605 in a subprocess such as that created by queryprogram now generate
1606 suitable debugging ouput when -d is set.
1607
1608 (b) The queryprogram router detects when it is not running as root,
1609 outputs suitable debugging information if -d is set, and then runs
1610 the subprocess without attempting to change uid/gid.
1611
9edc04ce
PH
1612PH/15 Minor change to Makefile for building test_host (undocumented testing
1613 feature).
1614
1349e1e5
PH
1615PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1616 additional section of a DNS packet that returns MX or SRV records.
1617 Instead, it always explicitly searches for A/AAAA records. This avoids
1618 major problems that occur when a DNS server includes only records of one
1619 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1620 fixed another bug: if SRV records were looked up and the corresponding
1621 address records were *not* found in the additional section, the port
1622 values from the SRV records were lost.
1623
ea49d0e1
PH
1624PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1625 using the correct key (the original address) when searching the retry
1626 rules in order to find which one to use for generating the retry hint.
1627
064a94c9
PH
1628PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1629 adding the default one. Similarly, if it contains a Reply-To: header, the
1630 errors_reply_to option, if set, is not used.
1631
727071f8
PH
1632PH/19 When calculating a retry time, Exim used to measure the "time since
1633 failure" by looking at the "first failed" field in the retry record. Now
1634 it does not use this if it is later than than the arrival time of the
1635 message. Instead it uses the arrival time. This makes for better
1636 behaviour in cases where some deliveries succeed, thus re-setting the
1637 "first failed" field. An example is a quota failure for a huge message
1638 when small messages continue to be delivered. Without this change, the
1639 "time since failure" will always be short, possible causing more frequent
1640 delivery attempts for the huge message than are intended.
dd16e114 1641 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1642
f78eb7c6
PH
1643PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1644 $1, $2, $3) because the numerical variables can be reset during some
1645 expansion items (e.g. "match"), thereby losing the authentication data.
1646
21c28500
PH
1647PH/21 Make -bV show the size of off_t variables so that the test suite can
1648 decide whether to run tests for quotas > 2G.
1649
1650PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1651 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1652 filecount value is greater than 2G or if a quota value is greater than 2G
1653 on a system where the size of off_t is not greater than 4, a panic error
1654 is given.
1655
1688f43b
PH
1656PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1657 never match. The debug and -bh output now contains an explicit error
1658 message indicating a malformed IPv4 address or mask.
1659
1660PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1661 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1662 PH/23 above applies.
1663
9675b384
PH
1664PH/25 Do not write to syslog when running in the test harness. The only
1665 occasion when this arises is a failure to open the main or panic logs
1666 (for which there is an explicit test).
1667
6a3f1455
PH
1668PH/26 Added the /no_tell option to "control=freeze".
1669
dac79d3e
PH
1670PH/27 If a host name lookup failed very early in a connection, for example, if
1671 the IP address matched host_lookup and the reverse lookup yielded a name
1672 that did not have a forward lookup, an error message of the form "no IP
1673 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1674 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1675
5977a0b3
PH
1676PH/28 An enabling patch from MH: add new function child_open_exim2() which
1677 allows the sender and the authenticated sender to be set when
1678 submitting a message from within Exim. Since child_open_exim() is
1679 documented for local_scan(), the new function should be too.
1680
c91535f3
PH
1681PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1682 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1683 results in an empty string is now treated as unset.
1684
0d46a8c8
PH
1685PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1686
278c6e6c
PH
1687PH/31 Added sender_verify_fail logging option.
1688
2cbb4081
PH
1689PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1690 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1691 tidied the source and removed it altogether.
1692
3eef829e
PH
1693PH/33 When a queue run was abandoned because the load average was too high, a
1694 log line was always written; now it is written only if the queue_run log
1695 selector is set. In addition, the log line for abandonment now contains
1696 information about the queue run such as the pid. This is always present
1697 in "start" and "stop" lines but was omitted from the "abandon" line.
1698
1ab95fa6
PH
1699PH/34 Omit spaces between a header name and the colon in the error message that
1700 is given when verify = headers_syntax fails (if there are lots of them,
1701 the message gets confusing).
1702
230205fc
PH
1703PH/35 Change the default for dns_check_names_pattern to allow slashes within
1704 names, as there are now some PTR records that contain slashes. This check
1705 is only to protect against broken name servers that fall over on strange
1706 characters, so the fact that it applies to all lookups doesn't matter.
1707
75e0e026
PH
1708PH/36 Now that the new test suite is complete, we can remove some of the
1709 special code in Exim that was needed for the old test suite. For example,
1710 sorting DNS records because real resolvers return them in an arbitrary
1711 order. The new test suite's fake resolver always returns records in the
1712 same order.
1713
1714PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1715 bounces) except when queue_only is set, to avoid logging races between
1716 the different processes.
1717
145396a6
PH
1718PH/38 Panic-die if .include specifies a non-absolute path.
1719
3cd34f13
PH
1720PH/39 A tweak to the "H" retry rule from its user.
1721
11121d3d
JJ
1722JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1723 a label. They prevented compilation on older perls.
1724
1725JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1726 a warning to be raised on newish perls.
1727
1728JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1729 on queue. Changes to match documented behaviour of showing count of
1730 messages matching specified criteria.
1731
8def5aaf
PH
1732PH/40 Changed the default ident timeout from 30s to 5s.
1733
929ba01c
PH
1734PH/41 Added support for the use of login_cap features, on those BSD systems
1735 that have them, for controlling the resources used by pipe deliveries.
1736
2632889e
PH
1737PH/42 The content-scanning code uses fopen() to create files in which to put
1738 message data. Previously it was not paying any attention to the mode of
1739 the files. Exim runs with umask(0) because the rest of the code creates
1740 files with open(), and sets the required mode explicitly. Thus, these
1741 files were ending up world-writeable. This was not a big issue, because,
1742 being within the spool directory, they were not world-accessible. I have
1743 created a function called modefopen, which takes an additional mode
1744 argument. It sets umask(777), creates the file, chmods it to the required
1745 mode, then resets the umask. All the relevant calls to fopen() in the
1746 content scanning code have been changed to use this function.
1747
944a9c55
PH
1748PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1749 to 24 hours. This avoids potential overflow problems when processing G
1750 and H retry rules. I suspect nobody ever tinkers with this value.
1751
4a23603b
PH
1752PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1753
4730f942
PH
1754PH/45 When the plaintext authenticator is running as a client, the server's
1755 challenges are checked to ensure they are valid base64 strings. By
1756 default, the authentication attempt is cancelled if an invalid string is
1757 received. Setting client_ignore_invalid_base64 true ignores these errors.
1758 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1759 they are received. Thus, the responses can be made to depend on the
1760 challenges. If an invalid string is ignored, an empty string is placed in
1761 the variable.
1762
30dba1e6
PH
1763PH/46 Messages that are created by the autoreply transport now contains a
1764 References: header, in accordance with RFCs 2822 and 3834.
1765
382afc6b
PH
1766PH/47 Added authenticated_sender_force to the smtp transport.
1767
a86229cf
PH
1768PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1769
50c99ba6
PH
1770PH/49 Installed latest patch from the Sieve maintainer.
1771
d35e429d
PH
1772PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1773 was also set, the appendfile transport was unnecessarily scanning a
1774 directory of message files (e.g. for maildir delivery) to find the count
1775 of files (along with the size), even though it did not need this
1776 information. It now does the scan only if it needs to find either the
1777 size of the count of files.
1778
f90d018c
PH
1779PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1780
75def545
PH
1781PH/52 Two bugs concerned with error handling when the smtp transport is
1782 used in LMTP mode:
1783
1784 (i) Exim was not creating retry information for temporary errors given
1785 for individual recipients after the DATA command when the smtp transport
1786 was used in LMTP mode. This meant that they could be retried too
1787 frequently, and not timed out correctly.
1788
1789 (ii) Exim was setting the flag that allows error details to be returned
1790 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1791 recipients that were returned after the DATA command.
1792
1793PH/53 This is related to PH/52, but is more general: for any failing address,
1794 when detailed error information was permitted to be returned to the
1795 sender, but the error was temporary, then after the final timeout, only
1796 "retry timeout exceeded" was returned. Now it returns the full error as
1797 well as "retry timeout exceeded".
1798
c46782ef
PH
1799PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1800 do this, and (what is worse) MTAs that accept it.
1801
71fafd95
PH
1802PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1803 will now be deprecated.
1804
2c5db4fd
PH
1805PH/56 New os.c-cygwin from the Cygwin maintainer.
1806
9cf6b11a
JJ
1807JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1808 formats (previously only available in exim formats via -bpr, -bpru,
1809 and -bpra. Now also available in native and exiqgrep formats)
1810
1811JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1812 with very large, slow to parse queues
1813
1814JJ/08 exipick: added ! as generic prefix to negate any criteria format
1815
1816JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1817
898d150f
PH
1818PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1819 responses to authentication challenges, though it was showing the
1820 challenges; (ii) I've removed the CR characters from the debug output for
1821 SMTP output lines.
1822
46218253
PH
1823PH/58 Allow for the insertion of a newline as well as a space when a string
1824 is turned into more than one encoded-word during RFC 2047 encoding. The
1825 Sieve code now uses this.
1826
e97957bc
PH
1827PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1828 data_4xx, lost_connection, tls_required.
1829
81e509d7
PH
1830PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1831 message was being sent as an SMTP response.
1832
3d240ff7
PH
1833PH/61 Add -l and -k options to exicyclog.
1834
b37c4101
PH
1835PH/62 When verifying, if an address was redirected to one new address, so that
1836 verification continued, and the new address failed or deferred after
1837 having set something in $address_data, the value of $address_data was not
1838 passed back to the ACL. This was different to the case when no
1839 redirection occurred. The value is now passed back in both cases.
1840
79378e0f
PH
1841PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1842 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1843 use login_cap.h, so on its own it isn't the distinguishing feature. The
1844 new name refers directly to the setclassresources() function.
1845
e49c7bb4
PH
1846PH/65 Added configuration files for NetBSD3.
1847
d114ec46
PH
1848PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1849
f3d7df6c
PH
1850PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1851 is preferred over IPv4.
1852
715ab376
PH
1853PH/68 The bounce_return_message and bounce_return_body options were not being
1854 honoured for bounces generated during the reception of non-SMTP messages.
1855 In particular, this applied to messages rejected by the ACL. This bug has
1856 been fixed. However, if bounce_return_message is true and bounce_return_
1857 body is false, the headers that are returned for a non-SMTP message
1858 include only those that have been read before the error was detected.
1859 (In the case of an ACL rejection, they have all been read.)
1860
6b31b150
PH
1861PH/69 The HTML version of the specification is now built in a directory called
1862 spec_html instead of spec.html, because the latter looks like a path with
1863 a MIME-type, and this confuses some software.
1864
1865PH/70 Catch two compiler warnings in sieve.c.
1866
d515a917
PH
1867PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1868 function verify_get_ident() calls ip_connect() to connect a socket, but
1869 if the "connect()" function timed out, ip_connect() used to close the
1870 socket. However, verify_get_ident() also closes the socket later, and in
1871 between Exim writes to the log, which may get opened at this point. When
1872 the socket was closed in ip_connect(), the log could get the same file
1873 descriptor number as the socket. This naturally causes chaos. The fix is
1874 not to close the socket in ip_connect(); the socket should be closed by
1875 the function that creates it. There was only one place in the code where
1876 this was missing, in the iplookup router, which I don't think anybody now
1877 uses, but I've fixed it anyway.
1878
9b8fadde
PH
1879PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1880 well as to direct DNS lookups. Otherwise the handling of names in host
1881 lists is inconsistent and therefore confusing.
1882
214e2000 1883
5de37277
PH
1884Exim version 4.60
1885-----------------
1886
cc38ddbf
PH
1887PH/01 Two changes to the default runtime configuration:
1888
1889 (1) Move the checks for relay_from_hosts and authenticated clients from
1890 after to before the (commented out) DNS black list checks.
1891
1892 (2) Add control=submission to the relay_from_hosts and authenticated
1893 clients checks, on the grounds that messages accepted by these
1894 statements are most likely to be submissions.
5de37277 1895
72fdd6ae
PH
1896PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1897
1898 (1) Generate an error if the third argument for the ${prvs expansion is
1899 not a single digit.
1900
1901 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1902 string.
1903
1904 (3) Reset the variables that are obtained from the first argument of
1905 ${prvscheck and used in the second argument before leaving the code,
1906 because their memory is reclaimed, so using them afterwards may do
1907 silly things.
1908
1909 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1910 one (it's much easier than Tom thought :-).
1911
1912 (5) Because of (4), we can now allow for the use of $prvscheck_result
1913 inside the third argument.
cb9328de 1914
cb741023
PH
1915PH/03 For some reason, the default setting of PATH when running a command from
1916 a pipe transport was just "/usr/bin". I have changed it to
1917 "/bin:/usr/bin".
1918
f174f16e
PH
1919PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1920 anything to be listed in the output from -bV.
b2f5a032 1921
c25242d7
PH
1922PH/05 When a filter generated an autoreply, the entire To: header line was
1923 quoted in the delivery log line, like this:
1924
1925 => >A.N.Other <ano@some.domain> <original@ddress> ...
1926
1927 This has been changed so that it extracts the operative address. There
1928 may be more than one such address. If so, they are comma-separated, like
1929 this:
1930
1931 => >ano@some.domain,ona@other.domain <original@ddress> ...
1932
82c19f95
PH
1933PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1934 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1935 not being looked up in the rDNS to get a host name, Exim was showing the
1936 IP address twice in Received: lines, even though the IP addresses were
1937 identical. For example:
1938
1939 Received: from [1.2.3.4] (helo=[1.2.3.4])
1940
1941 However, if the real host name was known, it was omitting the HELO data
1942 if it matched the actual IP address. This has been tidied up so that it
1943 doesn't show the same IP address twice.
1944
d7ffbc12
PH
1945PH/07 When both +timestamp and +memory debugging was on, the value given by
1946 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1947 called by the debug printing, thereby overwriting the timestamp buffer.
1948 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1949
9f526266
PH
1950PH/08 When the original message was included in an autoreply transport, it
1951 always said "this is a copy of the message, including all the headers",
1952 even if body_only or headers_only was set. It now gives an appropriate
1953 message.
1954
87fcc8b9
PH
1955PH/09 Applied a patch from the Sieve maintainer which:
1956
1957 o fixes some comments
1958 o adds the (disabled) notify extension core
1959 o adds some debug output for the result of if/elsif tests
1960 o points to the current vacation draft in the documentation
1961 and documents the missing references header update
1962
1963 and most important:
1964
1965 o fixes a bug in processing the envelope test (when testing
1966 multiple envelope elements, the last element determinted the
1967 result)
1968
456682f5
PH
1969PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1970 Electronic Mail") by including:
1971
1972 Auto-submitted: auto-generated
1973
1974 in the messages that it generates (bounce messages and others, such as
1975 warnings). In the case of bounce messages for non-SMTP mesages, there was
1976 also a typo: it was using "Auto_submitted" (underscore instead of
1977 hyphen). Since every message generated by Exim is necessarily in response
1978 to another message, thes have all been changed to:
1979
1980 Auto-Submitted: auto-replied
1981
1982 in accordance with these statements in the RFC:
1983
1984 The auto-replied keyword:
1985
1986 - SHOULD be used on messages sent in direct response to another
1987 message by an automatic process,
1988
1989 - MUST NOT be used on manually-generated messages,
1990
1991 - MAY be used on Delivery Status Notifications (DSNs) and Message
1992 Disposition Notifications (MDNs),
1993
1994 - MUST NOT be used on messages generated by automatic or periodic
1995 processes, except for messages which are automatic responses to
1996 other messages.
1997
3e46c1aa
PH
1998PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1999 to the default Received: header definition.
456682f5 2000
49826d12
PH
2001PH/12 Added log selector acl_warn_skipped (default on).
2002
eba0c039
PH
2003PH/13 After a successful wildlsearch lookup, discard the values of numeric
2004 variables because (a) they are in the wrong storage pool and (b) even if
2005 they were copied, it wouldn't work properly because of the caching.
2006
a0d6ba8a
PH
2007PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
2008 checking when decoding. Apparently there are clients that generate
2009 overlong encoded strings. Why am I not surprised?
2010
f0917727
PH
2011PH/15 If the first argument of "${if match_address" was not empty, but did not
2012 contain an "@" character, Exim crashed. Now it writes a panic log message
2013 and treats the condition as false.
2014
096fee00
PH
2015PH/16 In autoreply, treat an empty string for "once" the same as unset.
2016
024bd3c2
PH
2017PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2018 extension "envelope-auth". The code is finished and in agreement with
2019 other implementations, but there is no documentation so far and in fact,
2020 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2021 not changing the active code.
2022
2023 Print executed "if" and "elsif" statements when debugging is used. This
2024 helps a great deal to understand what a filter does.
2025
2026 Document more things not specified clearly in RFC3028. I had all this
2027 sorted out, when out of a sudden new issues came to my mind. Oops."
2028
df199fec
PH
2029PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2030 (Bugzilla #53).
2031
d27f1df3
PH
2032PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2033 canonical form (as documented). However, after a host name lookup from
2034 the IP address, check_host() was doing a simple string comparison with
2035 addresses acquired from the DNS when checking that the found name did
2036 have the original IP as one of its addresses. Since any found IPv6
2037 addresses are likely to be in abbreviated form, the comparison could
2038 fail. Luckily, there already exists a function for doing the comparison
2039 by converting both addresses to binary, so now that is used instead of
2040 the text comparison.
2041
96776534
PH
2042PH/20 There was another similar case to PH/19, when a complete host name was
2043 given in a host list; looking up its IP address could give an abbreviated
2044 form, whereas the current host's name might or might not be abbreviated.
2045 The same fix has been applied.
2046
5de37277 2047
9a799bc0
PH
2048Exim version 4.54
2049-----------------
2050
2051PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2052 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2053 It now does.
2054
99a4b039
PH
2055PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2056 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2057
2058PH/03 Typo: missing ".o" in src/pcre/Makefile.
2059
4b233853
PH
2060PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2061 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2062 Also, for "Auto-Submitted", treat anything other than "no" as
2063 non-personal, in accordance with RFC 3834. (Previously it treated
2064 anything starting "auto-" as non-personal.)
2065
8857ccfd
PH
2066TF/01 The control=submission/name=... option had a problem with syntax
2067 errors if the name included a slash character. The /name= option
2068 now slurps the rest of the string, so it can include any characters
2069 but it must come last in the list of options (after /sender_retain
2070 or /domain=).
2071
433a2980
PH
2072PH/05 Some modifications to the interface to the fake nameserver for the new
2073 testing suite.
2074
3e46c1aa 2075
9a799bc0 2076
e3a311ba
TK
2077Exim version 4.53
2078-----------------
2079
2080TK/01 Added the "success_on_redirect" address verification option. See
2081 NewStuff for rationale and an example.
2082
13b685f9
PH
2083PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2084
395ff96d
PH
2085PH/02 Patch to exigrep to allow it to work on syslog lines.
2086
5b68f6e4
PH
2087PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2088 fread() to skip over the body file's header line, because in Cygwin the
2089 header line is locked and is inaccessible.
2090
1ab52c69
PH
2091PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2092 co-exist for some time) to make it clear that it is the Exim ID that is
2093 referenced, not the Message-ID: header line.
2094
b07e6aa3
PH
2095PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2096 string_format() function, because snprintf() does not exist on all
2097 operating systems.
2098
254e032f
PH
2099PH/06 The use of forbid_filter_existstest now also locks out the use of the
2100 ${stat: expansion item.
2101
3af76a81
PH
2102PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2103 protocol synchronization error", to keep the pedants happy.
2104
2548ba04
PH
2105PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2106 well as for IRIX systems, when gcc is being used. See the host.c source
2107 file for comments.
2108
b6c6011d
PH
2109PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2110
cf39cf57
PH
2111PH/10 Named domain lists were not working if used in a queue_smtp_domains
2112 setting.
2113
f1513293
PH
2114PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2115 transport and to the smtp transport in LMTP mode.
2116
727549a4
PH
2117TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2118
af46795e
PH
2119PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2120 run a filter in a subprocess. This could lead to confusion in subsequent
2121 lookups in the parent process. There should also be a search_tidyup() at
2122 the end of the subprocess.
2123
d7b47fd0
PH
2124PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2125 only if the host matched helo_try_verify_hosts, which caused the
2126 verification to occur when the EHLO/HELO command was issued. The ACL just
2127 tested the remembered result. Now, if a previous verification attempt has
2128 not happened, "verify = helo" does it there and then.
2129
ee744174
JJ
2130JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2131
b582ab87
PH
2132TK/03 Fix log output including CR from clamd.
2133
41a13e0a
PH
2134PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2135 exist provoked a memory error which could cause a segfault.
2136
f625cc5a
PH
2137PH/15 Installed PCRE 6.2
2138
2139PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2140
21f7af35
PH
2141PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2142 of the problem. Specifically, suggested +O2 rather than +O1 for the
2143 HP-UX compiler.
2144
31480e42
PH
2145PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2146
2d280592
PH
2147PH/20 If a delivery was routed to a non-standard port by means of an SRV
2148 record, the port was not correctly logged when the outgoing_port log
2149 selector was set (it logged the transort's default port).
2150
7cd1141b
PH
2151PH/21 Added support for host-specific ports to manualroute, queryprogram,
2152 fallback_hosts, and "hosts" in the smtp transport.
2153
2154PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2155 host errors such as "Connection refused".
2156
750af86e
PH
2157PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2158 authentication with radiusclient 0.4.9:
2159
2160 - Error returned from rc_read_config was caught wrongly
2161 - Username/password not passed on to radius server due to wrong length.
2162
2163 The presumption is that some radiusclient API changes for 4.51/PH/17
2164 were not taken care of correctly. The code is still untested by me (my
2165 Linux distribution still has 0.3.2 of radiusclient), but it was
2166 contributed by a Radius user.
2167
2168PH/24 When doing a callout, the value of $domain wasn't set correctly when
2169 expanding the "port" option of the smtp transport.
2170
4304270b
TK
2171TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2172 while reading a MIME header. Thanks to Tom Hughes for a patch.
2173
750af86e
PH
2174PH/24 Include config.h inside local_scan.h so that configuration settings are
2175 available.
2176
64ffc24f
PH
2177PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2178 that in an ACL for RCPT (for example), you can examine exactly what was
2179 received.
2180
5dd9625b
PH
2181PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2182 commands, but it was not correctly comparing the address with the actual
2183 client host address. Thus, it would show the EHLO address in Received:
2184 header lines when this was not necessary.
2185
5591031b
PH
2186PH/27 Added the % operator to ${eval:}.
2187
ba18e66a
PH
2188PH/28 Exim tries to create and chdir to its spool directory when it starts;
2189 it should be ignoring failures (because with -C, for example, it has lost
2190 privilege). It wasn't ignoring creation failures other than "already
2191 exists".
2192
9cec981f
PH
2193PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2194 -bV or -d is used.
2195
aa2b5c79
PH
2196PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2197 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2198 too many continuations, the temporary file was not being removed, and the
2199 return code was incorrect.
aa2b5c79 2200
48a53b7f
PH
2201PH/31 Missing "BOOL" in function definition in filtertest.c.
2202
1c59d63b
PH
2203PH/32 Applied Sieve patches from the maintainer.
2204
671012da
TK
2205TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2206
1509d3a8
PH
2207PH/33 Added "verify = not_blind".
2208
2209PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2210 Local/Makefile (with some defaults set). These are used in built scripts
2211 such as exicyclog, but they have never been used in the exim_install
2212 script (though there are many overriding facilities there). I have
2213 arranged that the exim_install script now takes note of these two
2214 settings.
2215
2216PH/35 Installed configuration files for Dragonfly.
2217
2fe1a124
PH
2218PH/36 When a locally submitted message by a trusted user did not contain a
2219 From: header, and the sender address was obtained from -f or from an SMTP
2220 MAIL command, and the trusted user did not use -F to supply a sender
2221 name, $originator_name was incorrectly used when constructing a From:
2222 header. Furthermore, $originator_name was used for submission mode
2223 messages from external hosts without From: headers in a similar way,
2224 which is clearly wrong.
2225
8800895a
PH
2226PH/37 Added control=suppress_local_fixups.
2227
ccfdb010
PH
2228PH/38 When log_selector = +received_sender was set, and the addition of the
2229 sender made the log line's construction buffer exactly full, or one byte
2230 less than full, an overflow happened when the terminating "\n" was
2231 subsequently added.
2232
1130bfb0
PH
2233PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2234 when the result of a list match is failure because a DNS lookup failed.
2235
ebcb507f
PH
2236PH/40 RM_COMMAND is now used in the building process.
2237
c35e155c
PH
2238PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2239 the "build-* directories that it finds.
2240
95d1f782
PH
2241PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2242 address in a domain literal was a prefix of an interface address.
2243
fd6de02e
PH
2244PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2245 when verifying a sender address, unless rewrite_headers is false.
2246
58de37c5
PH
2247PH/44 Wrote a long comment about why errors_to addresses are verified as
2248 recipients, not senders.
2249
261cf466
TF
2250TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2251 the ratelimit ACL was added.
2252
3ee512ff
PH
2253PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2254
e08c430f
PH
2255PH/46 Added extra information about PostgreSQL errors to the error string.
2256
bef5a11f
PH
2257PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2258 avoiding the need to install special zones in a real server. This is
2259 backwards compatible; if it can't find the fake resolver, it drops back.
2260 Thus, both old and new test suites can be run.
2261
7546de58
TF
2262TF/02 Added util/ratelimit.pl
2263
e5d5a95f
TF
2264TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2265 clock is set back in time.
2266
2e88a017
TF
2267TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2268 Candler <B.Candler@pobox.com>.
2269
a5f65aa4
TF
2270TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2271 OK for addresses that are the result of redirections.
2272
e7726cbf
PH
2273PH/48 A number of further additions for the benefit of the new test suite,
2274 including a fake gethostbyname() that interfaces to the fake DNS resolver
2275 (see PH/47 above).
2276
a7fdad5b
TF
2277TF/06 The fix for widen_domains has also been applied to qualify_single and
2278 search_parents which are the other dnslookup options that can cause
2279 header rewrites.
2280
6af56900
PH
2281PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2282 type ("H").
2283
0925ede6
PH
2284PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2285
66afa403
TF
2286TF/07 Exim produced the error message "an SRV record indicated no SMTP
2287 service" if it encountered an MX record with an empty target hostname.
2288 The message is now "an MX or SRV record indicated no SMTP service".
2289
0154e85a
TF
2290TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2291 if the DNS of the sending site is misconfigured. This is quite a
2292 common situation. This change restores the behaviour of treating a
2293 helo verification defer as a failure.
2294
16f12c76
PH
2295PH/51 If self=fail was set on a router, the bounce message did not include the
2296 actual error message.
2297
bbe902f0 2298
e5a9dba6
PH
2299Exim version 4.52
2300-----------------
2301
2302TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2303
22c3b60b
PH
2304PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2305 command itself ended in error, the underlying message about the transport
2306 filter timeout was being overwritten with the pipe command error. Now the
2307 underlying error message should be appended to the second error message.
2308
06a9b4b5
PH
2309TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2310
c1ac6996
PH
2311PH/02 Reduce the amount of output that "make" produces by default. Full output
2312 can still be requested.
2313
9c7a242c
PH
2314PH/03 The warning log line about a condition test deferring for a "warn" verb
2315 was being output only once per connection, rather than after each
2316 occurrence (because it was using the same function as for successful
2317 "warn" verbs). This seems wrong, so I have changed it.
2318
87ba3f5f
PH
2319TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2320 it should not have, which might have caused a crash in the right
2321 circumstances, but probably never did.
2322
2323PH/04 Installed a modified version of Tony Finch's patch to make submission
2324 mode fix the return path as well as the Sender: header line, and to
2325 add a /name= option so that you can make the user's friendly name appear
2326 in the header line.
2327
29aba418
TF
2328TF/03 Added the control = fakedefer ACL modifier.
2329
fe0dab11
TF
2330TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2331 Mark Lowes for thorough testing.
870f6ba8 2332
11d337a4
TK
2333TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2334
2335TK/03 Merged latest SRS patch from Miles Wilton.
2336
415c8f3b
PH
2337PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2338 with the definition in sysexits.h (which is #included earlier).
2339 Fortunately, Exim does not actually use EX_OK. The code used to try to
2340 preserve the sysexits.h value, by assumimg that macro definitions were
2341 scanned for macro replacements. I have been disabused of this notion,
2342 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2343
958541e9
PH
2344PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2345 in the smtp transport. When a block could not be written in a single
2346 write() function, the timeout was being re-applied to each part-write.
2347 This seems wrong - if the receiver was accepting one byte at a time it
2348 would take for ever. The timeout is now adjusted when this happens. It
2349 doesn't have to be particularly precise.
2350
c206415f
TK
2351TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2352 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2353
2a4be8f9
PH
2354PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2355 without a domain if the check to <postmaster@domain> fails.
2356
1cba11c5
SC
2357SC/01 Eximstats: added -xls and the ability to specify output files
2358 (patch written by Frank Heydlauf).
2359
2360SC/02 Eximstats: use FileHandles for outputing results.
2361
2362SC/03 Eximstats: allow any combination of xls, txt, and html output.
2363
2364SC/04 Eximstats: fixed display of large numbers with -nvr option
2365
2366SC/05 Eximstats: fixed merging of reports with empty tables.
2367
2368SC/06 Eximstats: added the -include_original_destination flag
2369
2370SC/07 Eximstats: removed tabs and trailing whitespace.
2371
1005d00e
TK
2372TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2373
2374TK/06 MBOX spool code: Add real "From " MBOX separator line
2375 so the .eml file is really in mbox format (even though
2376 most programs do not really care). Patch from Alex Miller.
2377
2378TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2379 The latter is generated from $received_to and is only set if the
2380 message has one envelope recipient. SA can use these headers,
2381 obviously out-of-the-box. Patch from Alex Miller.
2382
9b4768fa
PH
2383PH/08 The ${def test on a variable was returning false if the variable's
2384 value was "0", contrary to what the specification has always said!
2385 The result should be true unless the variable is empty.
2386
2387PH/09 The syntax error of a character other than { following "${if
2388 def:variable_name" (after optional whitespace) was not being diagnosed.
2389 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2390 accidental colon was present, for example, could give incorrect results.
2391
0d7eb84a
PH
2392PH/10 Tidied the code in a number of places where the st_size field of a stat()
2393 result is used (not including appendfile, where other changes are about
2394 to be made).
2395
2396PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2397 This involved changing a lot of size variables from int to off_t. It
2398 should work with maildirs and everything.
2399
40727bee
TK
2400TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2401 spamd dying while we are connected to it.
2402
554d2369
TF
2403TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2404 <jgh@wizmail.org>
2405
1f922db1
PH
2406PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2407 function for BDB 4.3.
2408
ef213c3b
PH
2409PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2410
8ac170f3
PH
2411PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2412 the sources for PCRE have been re-arranged and more files are now
2413 involved.
2414
b1c749bb
PH
2415PH/15 The code I had for printing potentially long long variables in PH/11
2416 above was not the best (it lost precision). The length of off_t variables
2417 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2418 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2419 to be "long long int" or "long int". This is needed for the internal
2420 formatting function string_vformat().
b1c749bb 2421
4aac9b49
PH
2422PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2423 the configuration file to be ":syslog", then the script "guesses" where
2424 the logs files are, rather than using the compiled in default. In our
2425 case the guess is not the same as the compiled default, so the script
2426 suddenly stopped working when I started to use syslog. The patch checks
2427 to see if log_file_path is "". If so, it attempts to read it from exim
2428 with no configuration file to get the compiled in version, before it
2429 falls back to the previous guessing code."
2430
294520c8
TK
2431TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2432 implementing BATV in an Exim configuration. See NewStuff for the gory
2433 details.
2434
5bd022fe
PH
2435PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2436 Makefile that are specific to HP-UX.
2437
90e9ce59
PH
2438PH/18 If the "use_postmaster" option was set for a recipient callout together
2439 with the "random" option, the postmaster address was used as the MAIL
2440 FROM address for the random test, but not for the subsequent recipient
2441 test. It is now used for both.
2442
5ea81592
PH
2443PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2444 patch removes a few documentation additions to RFC 3028, because the
2445 latest draft now contains them. It adds the new en;ascii-case comparator
2446 and a new error check for 8bit text in MIME parts. Comparator and
2447 require names are now matched exactly. I enabled the subaddress
2448 extension, but it is not well tested yet (read: it works for me)."
2449
c6c2dc1d
PH
2450PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2451 rework some of the code of TK/09 above to avoid the hardwired use of
2452 "%lld" and "long long". Replaced the call to snprintf() with a call to
2453 string_vformat().
2454
fffffe4c
PH
2455PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2456 records point to non-existent hosts", "retry timeout exceeded", and
2457 "retry time not reached for any host after a long failure period".
ca02eafb 2458
9a26b6b2
PH
2459PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2460 experimental DomainKeys support:
2461
2462 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2463 (2) On an error such as an illegally used "control", the wrong name for
2464 the control was given.
2465
2466 These problems did NOT occur unless DomainKeys support was compiled.
2467
4aee0225
PH
2468PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2469
32d668a5
PH
2470PH/24 Added ${if match_ip condition.
2471
8187c3f3
PH
2472PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2473 databases so that it will be absolutely obvious if a crash occurs in the
2474 DB library. This is a regular occurrence (often caused by mis-matched
2475 db.h files).
2476
ff790e47 2477PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2478 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2479 picked up on a user's system that detects such things. There doesn't seem
2480 to be a gcc warning option for this - only an attribute that has to be
2481 put on the function's prototype. It seems that in Fedora Core 4 they have
2482 set this on a number of new functions. No doubt there will be more in due
2483 course.
ff790e47 2484
5417f6d1
PH
2485PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2486 specify a transport. However, if an address that was verified by such a
2487 router was the subject of a callout, Exim crashed because it tried to
2488 read the rcpt_include_affixes from the non-existent transport. Now it
2489 just assumes that the setting of that option is false. This bug was
2490 introduced by 4.51/PH/31.
2491
59cf8544
PH
2492PH/28 Changed -d+all to exclude +memory, because that information is very
2493 rarely of interest, but it makes the output a lot bigger. People tend to
2494 do -d+all out of habit.
2495
e7ad8a65
PH
2496PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2497 code in os-type was giving problems when libc.so lives in lib64, like on
2498 x86_64 Fedora Core.
2499
ade42478
PH
2500PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2501 aren't the modern standard, and it seems that some systems' include files
2502 don't always have them. Exim was already checking for some of the newer
2503 ones like T_AAAA, and defining it itself. I've added checks for all the
2504 record types that Exim uses.
2505
182ad5cf
PH
2506PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2507 not automatically generating a new one, as it is supposed to. This
2508 prevented TLS from working. If the file did exist, but contained invalid
2509 data, a new version was generated, as expected. It was only the case of a
2510 non-existent file that was broken.
2511
b0d9fc80
TK
2512TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2513 with a change in libdomainkeys > 0.64.
2514
2515TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2516 from DNS. If the selector record carries the flag, it now has
2517 precedence over the domain-wide flag.
2518
2519TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2520
47c7a64a
PH
2521PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2522 the use of a port name that isn't defined in /etc/services) occurred, the
2523 message was deferred as in a normal delivery, and thus remained on the
2524 spool, instead of being failed because of the mua_wrapper setting. This
2525 is now fixed, and I tidied up some of the mua_wrapper messages at the
2526 same time.
2527
a388bce4
SC
2528SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2529 the messages in a hash of arrays rather than using individual hashes.
2530 This is a bit cleaner and results in dramatic memory savings, albeit
2531 at a slight CPU cost.
2532
2533SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2534 as requested by Marc Sherman.
2535
2536SC/10 Eximstats: added histograms for user specified patterns as requested
2537 by Marc Sherman.
2538
0793e4ed
SC
2539SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2540
c58b88df
PH
2541PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2542 fopen() in the content-scanning modules that did not already have it.
2543
e7ad8a65 2544
7982096b
PH
2545Exim version 4.51
2546-----------------
2547
1a46a8c5
PH
2548TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2549 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2550
2f079f46 2551TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2552
2553TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2554
2555PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2556 to test Sieve filters that use "vacation".
2557
2558PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2559 that changes the way the GnuTLS parameters are stored in the cache file.
2560 The new format can be generated externally. For backward compatibility,
2561 if the data in the cache doesn't make sense, Exim assumes it has read an
2562 old-format file, and it generates new data and writes a new file. This
2563 means that you can't go back to an older release without removing the
2564 file.
2565
2566PH/03 A redirect router that has both "unseen" and "one_time" set does not
2567 work if there are any delivery delays because "one_time" forces the
2568 parent to be marked "delivered", so its unseen clone is never tried
2569 again. For this reason, Exim now forbids the simultaneous setting of
2570 these two options.
2571
2572PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2573 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2574 entry if you want to know the details. The fix, however, neglected to
2575 consider the case when local delivery batching is involved. The test for
2576 "previously delivered" was not happening when checking to see if an
2577 address could be batched with a previous (undelivered) one; under
2578 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2579 address.
1a46a8c5
PH
2580
2581PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2582 in its include files, and this causes problems building Exim.
2583
2584PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2585 header_syntax) but Exim was just ignoring anything given after a slash.
2586 In particular, this caused confusion with an attempt to use "verify =
2587 reverse_host_lookup/defer_ok". An error is now given when options are
2588 supplied for verify items that do not have them. (Maybe reverse_host_
2589 lookup should have a defer_ok option, but that's a different point.)
2590
2591PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2592 defined by RFC 821) to 2048, because there were problems with some AUTH
2593 commands, and RFC 1869 says the size should be increased for extended
2594 SMTP commands that take arguments.
2595
2596PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2597 Finch).
2598
2599PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2600 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2601
49c2d5ea
PH
2602PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2603 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2604 whatever). Otherwise the password may appear in the log. Following change
2605 PH/42 below, there is no longer a chance of it appearing in a bounce
2606 message.
49c2d5ea 2607
bf759a8b
PH
2608PH/11 Installed exipick version 20050225.0 from John Jetmore.
2609
83364d30
PH
2610PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2611 of its addresses was ever tried. (Bugzilla bug #2.)
2612
7999bbd7
PH
2613PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2614 the result incorrectly in the debug output. (It correctly added a newline
2615 to what was transported.)
2616
7dbf77c9
PH
2617TF/01 Added $received_time.
2618
74e0617f
PH
2619PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2620 commented out examples of how to interface to a virus scanner and to
2621 SpamAssassin. Also added commented examples of av_scanner and
2622 spamd_address settings.
2623
2f079f46
PH
2624PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2625 and controls are allowed in which ACLs. There were a couple of minor
2626 errors. Some of the entries in the conditions table (which is a table of
2627 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2628 negation of where the condition IS allowed.
2629
8c841523
PH
2630PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2631
7766a4f0
PH
2632PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2633 header file does not have a version number, so I've had to invent a new
2634 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2635 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2636 radiusclient), but it was contributed by a Radius user.
2637
8b417f2c
PH
2638PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2639 files or directories, for OpenSSL.
2640
901f42cb
PH
2641PH/19 When an Exim process that is running as root has to create an Exim log
2642 file, it does so in a subprocess that runs as exim:exim so as to get the
2643 ownership right at creation (otherwise, other Exim processes might see
2644 the file with the wrong ownership). There was no test for failure of this
2645 fork() call, which would lead to the process getting stuck as it waited
2646 for a non-existent subprocess. Forks do occasionally fail when resources
2647 run out. I reviewed all the other calls to fork(); they all seem to check
2648 for failure.
2649
f9b9210e
PH
2650PH/20 When checking for unexpected SMTP input at connect time (before writing
2651 the banner), Exim was not dealing correctly with a non-positive return
2652 from the read() function. If the client had disconnected by this time,
2653 the result was a log entry for a synchronization error with an empty
2654 string after "input=" when read() returned zero. If read() returned -1
2655 (an event I could not check), uninitialized data bytes were printed.
2656 There were reports of junk text (parts of files, etc) appearing after
2657 "input=".
2658
54cdb463
PH
2659PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2660
cf00dad6
PH
2661PH/22 Added support for macro redefinition, and (re)definition in between
2662 driver and ACL definitions.
2663
acb1b346
PH
2664PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2665 forgetting to use the resulting value; it was using the unexpanded value.
2666
c5ddb310
PH
2667PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2668 hadn't been configured. The fix is from Juergen Kreileder, who
2669 understands it better than I do:
2670
2671 "Here's what I see happening with three configured cyrus_sasl
2672 authenticators configured (plain, login, cram-md5):
2673
2674 On startup auth_cyrus_sasl_init() gets called for each of these.
2675 This means three calls to sasl_listmech() without a specified mech_list.
2676 => SASL tests which mechs of all available mechs actually work
2677 => three warnings about OTP not working
2678 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2679
2680 With the patch, sasl_listmech() also gets called three times. But now
2681 SASL's mech_list option is set to the server_mech specified in the the
2682 authenticator. Or in other words, the answer from sasl_listmech()
2683 gets limited to just the mech you're testing for (which is different
2684 for each call.)
2685 => the return list contains just 'plain' or 'login', 'cram-md5' or
2686 nothing depending on the value of ob->server_mech.
2687
2688 I've just tested the patch: Authentication still works fine,
2689 unavailable mechs specified in the exim configuration are still
2690 caught, and the auth.log warnings about OTP are gone."
2691
31619da6
PH
2692PH/25 When debugging is enabled, the contents of the command line are added
2693 to the debugging output, even when log_selector=+arguments is not
2694 specified.
2695
bebaf0fc
PH
2696PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2697 answer is "GNU", and only if the return is "GNU/something" is the answer
2698 "Linux".
2699
475fe28a
PH
2700PH/27 $acl_verify_message is now set immediately after the failure of a
2701 verification in an ACL, and so is available in subsequent modifiers. In
2702 particular, the message can be preserved by coding like this:
2703
2704 warn !verify = sender
2705 set acl_m0 = $acl_verify_message
2706
2707 Previously, $acl_verify_message was set only while expanding "message"
2708 and "log_message" when a very denied access.
2709
7e8bec7a
PH
2710PH/28 Modified OS/os.c-Linux with
2711
2712 -#ifndef OS_LOAD_AVERAGE
2713 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2714
2715 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2716 nomenclature these days.)
2717
e4a89c47
PH
2718PH/29 Installed patch from the Sieve maintainer that adds the options
2719 sieve_useraddress and sieve_subaddress to the redirect router.
2720
5ca2a9a1
PH
2721PH/30 In these circumstances:
2722 . Two addresses routed to the same list of hosts;
2723 . First host does not offer TLS;
2724 . First host accepts first address;
2725 . First host gives temporary error to second address;
2726 . Second host offers TLS and a TLS session is established;
2727 . Second host accepts second address.
2728 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2729 and peerdn, if requested) that were in fact used only for the second
2730 address.
7e8bec7a 2731
c688b954
PH
2732PH/31 When doing a callout as part of verifying an address, Exim was not paying
2733 attention to any local part prefix or suffix that was matched by the
2734 router that accepted the address. It now behaves in the same way as it
2735 does for delivery: the affixes are removed from the local part unless
2736 rcpt_include_affixes is set on the transport.
2737
fed77020
PH
2738PH/32 Add the sender address, as F=<...>, to the log line when logging a
2739 timeout during the DATA phase of an incoming message.
2740
7fe1560f
PH
2741PH/33 Sieve envelope tests were broken for match types other than :is. I have
2742 applied a patch sanctioned by the Sieve maintainer.
c688b954 2743
ebb6e6d5
PH
2744PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2745 the uid or gid is negative. A case of a negative gid caused this to be
2746 noticed. The fix allows for either to be negative.
2747
9c4e8f60
PH
2748PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2749 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2750 overlooked.
2751
2752PH/36 The change PH/12 above was broken. Fixed it.
2753
d7174846
PH
2754PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2755 the grounds that routing the same address twice would always produce the
2756 same answer. This might have been true once, but it is certainly no
2757 longer true now. Routing a child address may depend on the previous
2758 routing that produced that child. Some complicated redirection strategies
2759 went wrong when messages had multiple recipients, and made Exim's
2760 behaviour dependent on the order in which the addresses were given.
2761
2762 I have moved the duplicate checking until after the routing is complete.
2763 Exim scans the addresses that are assigned to local and remote
2764 transports, and removes any duplicates. This means that more work will be
2765 done, as duplicates will always all be routed, but duplicates are
2766 presumably rare, so I don't expect this is of any significance.
2767
2768 For deliveries to pipes, files, and autoreplies, the duplicate checking
2769 still happens during the routing process, since they are not going to be
2770 routed further.
2771
cfe75fc3
PH
2772PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2773 It corrects a timeout issue with spamd. This is Ian's comment: "The
2774 background is that sometimes spamd either never reads data from a
2775 connection it has accepted, or it never writes response data. The exiscan
2776 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2777 blindly assumes that writes won't block so it may never time out."
2778
be22d70e
PH
2779PH/39 Allow G after quota size as well as K and M.
2780
0612b098
PH
2781PH/40 The value set for $authenticated_id in an authenticator may not contain
2782 binary zeroes or newlines because the value is written to log lines and
2783 to spool files. There was no check on this. Now the value is run through
2784 the string_printing() function so that such characters are converted to
2785 printable escape sequences.
2786
2e0c1448
PH
2787PH/41 $message_linecount is a new variable that contains the total number of
2788 lines in the message. Compare $body_linecount, which is the count for the
2789 body only.
2790
447d236c
PH
2791PH/42 Exim no longer gives details of delivery errors for specific addresses in
2792 bounce and delay warning messages, except in certain special cases, which
2793 are as follows:
2794
2795 (a) An SMTP error message from a remote host;
2796 (b) A message specified in a :fail: redirection;
2797 (c) A message specified in a "fail" command in a system filter;
2798 (d) A message specified in a FAIL return from the queryprogram router;
2799 (e) A message specified by the cannot_route_message router option.
2800
2801 In these cases only, Exim does include the error details in bounce and
2802 warning messages. There are also a few cases where bland messages such
2803 as "unrouteable address" or "local delivery error" are given.
2804
d20976dc
PH
2805PH/43 $value is now also set for the "else" part of a ${run expansion.
2806
f656d135
PH
2807PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2808 being worked on, but at least Exim now implements the latest version to
2809 play with."
2810
2e2a30b4
PH
2811PH/45 In a pipe transport, although a timeout while waiting for the pipe
2812 process to complete was treated as a delivery failure, a timeout while
2813 writing the message to the pipe was logged, but erroneously treated as a
2814 successful delivery. Such timeouts include transport filter timeouts. For
2815 consistency with the overall process timeout, these timeouts are now
2816 treated as errors, giving rise to delivery failures by default. However,
2817 there is now a new Boolean option for the pipe transport called
2818 timeout_defer, which, if set TRUE, converts the failures into defers for
2819 both kinds of timeout. A transport filter timeout is now identified in
2820 the log output.
2821
9176e9f0
PH
2822PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2823 systems where "make" and "gmake" are different, calling "gmake" at top
2824 level broke things. I've arranged for the value of $(MAKE) to be passed
2825 from the Makefile to this script so that it can call the same version of
2826 "make".
2827
7982096b 2828
bbe902f0
PH
2829A note about Exim versions 4.44 and 4.50
2830----------------------------------------
2831
2832Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2833changes of various kinds. As a consequence, a big documentation update was
2834needed. This delayed the release for rather longer than seemed good, especially
2835in the light of a couple of (minor) security issues. Therefore, the changes
2836that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2837release. So 4.44 and 4.50 are in effect two different branches that both start
2838from 4.43.
2839
2840I have left the 4.50 change log unchanged; it contains all the changes since
28414.43. The change log for 4.44 is below; many of its items are identical to
2842those for 4.50. This seems to be the most sensible way to preserve the
2843historical information.
2844
2845
f7b63901 2846Exim version 4.50
495ae4b0
PH
2847-----------------
2848
5fe762f6
PH
2849 1. Minor wording change to the doc/README.SIEVE file.
2850
139059f6 2851 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2852 computation of the current number of files was incorrect.
495ae4b0 2853
7086e875
PH
2854 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2855 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2856 place.
2857
35af9f61
PH
2858 4. Give more explanation in the error message when the command for a transport
2859 filter fails to execute.
2860
b668c215
PH
2861 5. There are several places where Exim runs a non-Exim command in a
2862 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2863 was being done only for the command run by the queryprogram router. It is
2864 now done for all such subprocesses. The other cases are: ${run, transport
2865 filters, and the commands run by the lmtp and pipe transports.
2866
a494b1e1
PH
2867 6. Added CONFIGURE_GROUP build-time option.
2868
2869 7. Some older OS have a limit of 256 on the maximum number of file
2870 descriptors. Exim was using setrlimit() to set 1000 as a large value
2871 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2872 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2873
c5fcb476
PH
2874 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2875 was an oversight, and furthermore, ever since the addition of extra
2876 controls (e.g. 4.43/32), the checks on when to allow different forms of
2877 "control" were broken. There should now be diagnostics for all cases when a
2878 control that does not make sense is encountered.
2879
69358f02
PH
2880 9. Added the /retain_sender option to "control=submission".
2881
5be20824
PH
288210. $recipients is now available in the predata ACL (oversight).
2883
eb2c0248
PH
288411. Tidy the search cache before the fork to do a delivery from a message
2885 received from the command line. Otherwise the child will trigger a lookup
2886 failure and thereby defer the delivery if it tries to use (for example) a
2887 cached ldap connection that the parent has called unbind on.
2888
2a3eea10
PH
288912. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2890 of $address_data from the recipient verification was clobbered by the
2891 sender verification.
2892
289313. The value of address_data from a sender verification is now available in
2894 $sender_address_data in subsequent conditions in the ACL statement.
2895
23c7ff99
PH
289614. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2897
4deaf07d
PH
289815. Added a new option "connect=<time>" to callout options, to set a different
2899 connection timeout.
2900
926e1192
PH
290116. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2902 was its contents. (It was OK if the option was not defined at all.)
2903
650edc6f
PH
290417. A "Completed" log line is now written for messages that are removed from
2905 the spool by the -Mrm option.
2906
2c7db3f5
PH
290718. New variables $sender_verify_failure and $recipient_verify_failure contain
2908 information about exactly what failed.
2909
3d235903
PH
291019. Added -dd to debug only the daemon process.
2911
7c7ad977
PH
291220. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2913 handles timeouts, both on the server side and network timeouts. Renamed the
2914 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2915
981756db
PH
291621. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2917 It is now set to "smtps".
2918
d4eb88df
PH
291922. $host_address is now set to the target address during the checking of
2920 ignore_target_hosts.
2921
292223. When checking ignore_target_hosts for an ipliteral router, no host name was
2923 being passed; this would have caused $sender_host_name to have been used if
2924 matching the list had actually called for a host name (not very likely,
2925 since this list is usually IP addresses). A host name is now passed as
2926 "[x.x.x.x]".
2927
7d468ab8
PH
292824. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2929 code that specifies a non-restarting handler (typically sigaction() in
2930 modern systems) in an attempt to fix a rare and obscure crash bug.
2931
293225. Narrowed the window for a race in the daemon that could cause it to ignore
2933 SIGCHLD signals. This is not a major problem, because they are used only to
2934 wake it up if nothing else does.
2935
62c0818f
PH
293626. A malformed maildirsize file could cause Exim to calculate negative values
2937 for the mailbox size or file count. Odd effects could occur as a result.
2938 The maildirsize information is now recalculated if the size or filecount
2939 end up negative.
2940
26034054
PH
294127. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2942 support for a long time. Removed HAVE_SYS_VFS_H.
2943
af66f652
PH
294428. Installed the latest version of exipick from John Jetmore.
2945
90af77f4
PH
294629. In an address list, if the pattern was not a regular expression, an empty
2947 subject address (from a bounce message) matched only if the pattern was an
2948 empty string. Non-empty patterns were not even tested. This was the wrong
2949 because it is perfectly reasonable to use an empty address as part of a
2950 database query. An empty address is now tested by patterns that are
2951 lookups. However, all the other forms of pattern expect the subject to
2952 contain a local part and a domain, and therefore, for them, an empty
2953 address still always fails if the pattern is not itself empty.
2954
d8ef3577
PH
295530. Exim went into a mad DNS loop when attempting to do a callout where the
2956 host was specified on an smtp transport, and looking it up yielded more
2957 than one IP address.
2958
5cb8cbc6
PH
295931. Re-factored the code for checking spool and log partition space into a
2960 function that finds that data and another that does the check. The former
2961 is then used to implement four new variables: $spool_space, $log_space,
2962 $spool_inodes, and $log_inodes.
2963
14702f5b
PH
296432. The RFC2047 encoding function was originally intended for short strings
2965 such as real names; it was not keeping to the 75-character limit for
2966 encoded words that the RFC imposes. It now respects the limit, and
2967 generates multiple encoded words if necessary. To be on the safe side, I
2968 have increased the buffer size for the ${rfc2047: expansion operator from
2969 1024 to 2048 bytes.
2970
063b1e99
PH
297133. It is now permitted to omit both strings after an "if" condition; if the
2972 condition is true, the result is "true". As before, when the second string
2973 is omitted, a false condition yields an empty string. This makes it less
2974 cumbersome to write custom ACL and router conditions.
2975
652e1b65
PH
297634. Failure to deliver a bounce message always caused it to be frozen, even if
2977 there was an errors_to setting on the router. The errors_to setting is now
2978 respected.
2979
6f0c9a4f
PH
298035. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2981 canonical form (fully expanded) before being placed in
2982 $sender_host_address.
2983
33397d19
PH
298436. The table in the code that translates DNS record types into text (T_A to
2985 "A" for instance) was missing entries for NS and CNAME. It is just possible
2986 that this could have caused confusion if both these types were looked up
2987 for the same domain, because the text type is used as part of Exim's
2988 per-process caching. But the chance of anyone hitting this buglet seems
2989 very small.
2990
7bb56e1f
PH
299137. The dnsdb lookup has been extended in a number of ways.
2992
2993 (1) There is a new type, "zns", which walks up the domain tree until it
2994 finds some nameserver records. It should be used with care.
2995
ea3bc19b
PH
2996 (2) There is a new type, "mxh", which is like "mx" except that it returns
2997 just the host names, not the priorities.
2998
2999 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
3000 looked up. The behaviour when one of the lookups defers can be
3001 controlled by a keyword.
7bb56e1f 3002
ea3bc19b 3003 (4) It is now possible to specify the separator character for use when
7bb56e1f 3004 multiple records are returned.
33397d19 3005
0bcb2a0e
PH
300638. The dnslists ACL condition has been extended: it is now possible to supply
3007 a list of IP addresses and/or domains to be looked up in a particular DNS
3008 domain.
3009
2ac0e484
PH
301039. Added log_selector=+queue_time_overall.
3011
4e1fde53
PH
301240. When running the queue in the test harness, wait just a tad after forking a
3013 delivery process, to get repeatability of debugging output.
3014
de365ded
PH
301541. Include certificate and key file names in error message when GnuTLS fails
3016 to set them up, because the GnuTLS error message doesn't include the name
3017 of the failing file when there is a problem reading it.
3018
f05da2e8
PH
301942. Allow both -bf and -bF in the same test run.
3020
d6453af2
PH
302143. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
3022
f7b63901
PH
302344. The "Exiscan patch" is now merged into the mainline Exim source.
3024
302545. Sometimes the final signoff response after QUIT could fail to get
3026 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3027 < 0 before doing a fflush(). This bug looks as though it goes back to the
3028 introduction of TLS in release 3.20, but "sometimes" must have been rare
3029 because the tests only now provoked it.
3030
a444213a
PH
303146. Reset the locale to "C" after calling embedded Perl, in case it was changed
3032 (this can affect the format of dates).
3033
0ec020ea
PH
303447. exim_tidydb, when checking for the continued existence of a message for
3035 which it has found a message-specific retry record, was not finding
3036 messages that were in split spool directories. Consequently, it was
3037 deleting retry records that should have stayed in existence.
3038
b1206957
PH
303948. Steve fixed some bugs in eximstats.
3040
304149. The SPA authentication driver was not abandoning authentication and moving
3042 on to the next authenticator when an expansion was forced to fail,
3043 contradicting the general specification for all authenticators. Instead it
3044 was generating a temporary error. It now behaves as specified.
3045
26dd5a95
PH
304650. The default ordering of permitted cipher suites for GnuTLS was pessimal
3047 (the order specifies the preference for clients). The order is now AES256,
3048 AES128, 3DES, ARCFOUR128.
3049
343b2385
PH
305051. Small patch to Sieve code - explicitly set From: when generating an
3051 autoreply.
3052
1c5466b9
PH
305352. Exim crashed if a remote delivery caused a very long error message to be
3054 recorded - for instance if somebody sent an entire SpamAssassin report back
3055 as a large number of 550 error lines. This bug was coincidentally fixed by
3056 increasing the size of one of Exim's internal buffers (big_buffer) that
3057 happened as part of the Exiscan merge. However, to be on the safe side, I
3058 have made the code more robust (and fixed the comments that describe what
3059 is going on).
3060
55ee9ee3
PH
306153. Now that there can be additional text after "Completed" in log lines (if
3062 the queue_time_overall log selector is set), a one-byte patch to exigrep
3063 was needed to allow it to recognize "Completed" as not the last thing in
3064 the line.
3065
d38f8232
PH
306654. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
3067 patch that reportedly fixes this has been added. I am not expert enough to
3068 create a test for it. This is what the patch creator wrote:
3069
3070 "I found a little strange behaviour of ldap code when working with
3071 Windows 2003 AD Domain, where users was placed in more than one
3072 Organization Units. When I tried to give exim partial DN, the exit code
3073 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
3074 But simultaneously result of request was absolutely normal ldap result,
3075 so I produce this patch..."
3076
3295e65b
PH
3077 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
3078 REFERENCE, so I have modified the code to exclude the patch when that macro
3079 is not defined.
3080
7102e136
PH
308155. Some experimental protocols are using DNS PTR records for new purposes. The
3082 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
3083 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3084 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 3085 CAN-2005-0021
7102e136 3086
3ca0ba97
PH
308756. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
3088
c2bcbe20
PH
308957. Double the size of the debug message buffer (to 2048) so that more of very
3090 long debug lines gets shown.
3091
18ce445d
PH
309258. The exicyclog utility now does better if the number of log files to keep
3093 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
3094
1f5b4c3d
PH
309559. Two changes related to the smtp_active_hostname option:
3096
3097 (1) $smtp_active_hostname is now available as a variable.
3098 (2) The default for smtp_banner uses $smtp_active_hostname instead
3099 of $primary_hostname.
3100
b975ba52
PH
310160. The host_aton() function is supposed to be passed a string that is known
3102 to be a valid IP address. However, in the case of IPv6 addresses, it was
3103 not checking this. This is a hostage to fortune. Exim now panics and dies
3104 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
3105 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3106 components; fortuitously, this particular loophole had already been fixed
3107 by change 4.50/55 above.
3108
3109 If there are any other similar loopholes, the new check in host_aton()
3110 itself should stop them being exploited. The report I received stated that
3111 data on the command line could provoke the exploit when Exim was running as
3112 exim, but did not say which command line option was involved. All I could
3113 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3114 running as the user.
ea3a6f44 3115 CAN-2005-0021
85b87bc2
PH
3116
311761. There was a buffer overflow vulnerability in the SPA authentication code
3118 (which came originally from the Samba project). I have added a test to the
3119 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 3120 CAN-2005-0022
b975ba52 3121
17ffcae7
PH
312262. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3123 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3124
d95f9fdb
PH
312563. The daemon start-up calls getloadavg() while still root for those OS that
3126 need the first call to be done as root, but it missed one case: when
3127 deliver_queue_load_max is set with deliver_drop_privilege. This is
3128 necessary for the benefit of the queue runner, because there is no re-exec
3129 when deliver_drop_privilege is set.
3130
86b8287f
PH
313164. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3132 This has been fixed.
3133
60dc5e56
PH
313465. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3135 was in use, was not putting the data itself into the right store pool;
3136 consequently, it could be overwritten for a subsequent message in the same
3137 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3138 the caching.)
3139
533244af
PH
314066. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3141
a5a28604
PH
314267. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3143 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3144 the function were treating the return as a boolean value, which happened to
3145 work because 0=false and not-0=true, but is not correct code.
3146
7e634d24
PH
314768. The host_aton() function was not handling scoped IPv6 addresses (those
3148 with, for example, "%eth0" on the end) correctly.
3149
3e11c26b
PH
315069. Fixed some compiler warnings in acl.c for the bitmaps specified with
3151 negated items (that is, ~something) in unsigned ints. Some compilers
3152 apparently mutter when there is no cast.
3153
6729cf78
PH
315470. If an address verification called from an ACL failed, and did not produce a
3155 user-specific message (i.e. there was only a "system" message), nothing was
3156 put in $acl_verify_message. In this situation, it now puts the system
3157 message there.
3158
00f00ca5
PH
315971. Change 4.23/11 added synchronization checking at the start of an SMTP
3160 session; change 4.31/43 added the unwanted input to the log line - except
3161 that it did not do this in the start of session case. It now does.
3162
c9bdd01c
PH
316372. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3164 This is wrong and can cause the other end to generate a synchronization
3165 error if it is another Exim or anything else that does the synchronization
3166 check. A QUIT command is no longer sent after a timeout.
3167
d43194df
PH
316873. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3169 during host lookups.
3170
fe5b5d0b
PH
317174. The defer_ok option of callout verification was not working if it was used
3172 when verifying addresses in header lines, that is, for this case:
3173
3174 verify = header_sender/callout=defer_ok
3175
76a2d7ba
PH
317675. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3177 those file descriptors could be used for SMTP connections. If anything
3178 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3179 could be sent to the SMTP client, causing chaos. The daemon now opens
3180 stdin, stdout, and stderr to /dev/null when it puts itself into the
3181 background.
3182
318376. Arrange for output from Perl's "warn" command to be written to Exim's main
3184 log by default. The user can override this with suitable Perl magic.
3185
04f7d5b9
PH
318677. The use of log_message on a "discard" ACL verb, which is supposed to add to
3187 the log message when discard triggers, was not working for the DATA ACL or
3188 for the non-SMTP ACL.
3189
bc60667e
PH
319078. Error message wording change in sieve.c.
3191
bb6e88ff
PH
319279. If smtp_accept_max_per_host was set, the number of connections could be
3193 restricted to fewer than expected, because the daemon was trying to set up
3194 a new connection before checking whether the processes handling previous
3195 connections had finished. The check for completed processes is now done
3196 earlier. On busy systems, this bug wouldn't be noticed because something
3197 else would have woken the daemon, and it would have reaped the completed
3198 process earlier.
3199
1e70f85b
PH
320080. If a message was submitted locally by a user whose login name contained one
3201 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3202 It caused a spool format error. I have fixed the spool reading code. A
3203 related problem was that the "from" clause in the Received: line became
3204 illegal because of the space(s). It is now covered by ${quote_local_part.
3205
320681. Included the latest eximstats from Steve (adds average sizes to HTML Top
3207 tables).
3208
4e01f9d6
PH
320982. Updated OS/Makefile-AIX as per message from Mike Meredith.
3210
1ee1cef2
PH
321183. Patch from Sieve maintainer to fix unterminated string problem in
3212 "vacation" handling.
3213
6e2b4ccc
PH
321484. Some minor changes to the Linux configuration files to help with other
3215 OS variants using glibc.
3216
8e669ac1
PH
321785. One more patch for Sieve to update vacation handling to latest spec.
3218
495ae4b0 3219
bbe902f0
PH
3220----------------------------------------------------
3221See the note above about the 4.44 and 4.50 releases.
3222----------------------------------------------------
3223
3224
3225Exim version 4.44
3226-----------------
3227
3228 1. Change 4.43/35 introduced a bug that caused file counts to be
3229 incorrectly computed when quota_filecount was set in an appendfile
3230 transport
3231
3232 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3233 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3234 place.
3235
3236 3. Give more explanation in the error message when the command for a transport
3237 filter fails to execute.
3238
3239 4. There are several places where Exim runs a non-Exim command in a
3240 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3241 was being done only for the command run by the queryprogram router. It is
3242 now done for all such subprocesses. The other cases are: ${run, transport
3243 filters, and the commands run by the lmtp and pipe transports.
3244
3245 5. Some older OS have a limit of 256 on the maximum number of file
3246 descriptors. Exim was using setrlimit() to set 1000 as a large value
3247 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3248 systems. I've change it so that if it can't get 1000, it tries for 256.
3249
3250 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3251 was an oversight, and furthermore, ever since the addition of extra
3252 controls (e.g. 4.43/32), the checks on when to allow different forms of
3253 "control" were broken. There should now be diagnostics for all cases when a
3254 control that does not make sense is encountered.
3255
3256 7. $recipients is now available in the predata ACL (oversight).
3257
3258 8. Tidy the search cache before the fork to do a delivery from a message
3259 received from the command line. Otherwise the child will trigger a lookup
3260 failure and thereby defer the delivery if it tries to use (for example) a
3261 cached ldap connection that the parent has called unbind on.
3262
3263 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3264 of $address_data from the recipient verification was clobbered by the
3265 sender verification.
3266
326710. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3268 was its contents. (It was OK if the option was not defined at all.)
3269
327011. A "Completed" log line is now written for messages that are removed from
3271 the spool by the -Mrm option.
3272
327312. $host_address is now set to the target address during the checking of
3274 ignore_target_hosts.
3275
327613. When checking ignore_target_hosts for an ipliteral router, no host name was
3277 being passed; this would have caused $sender_host_name to have been used if
3278 matching the list had actually called for a host name (not very likely,
3279 since this list is usually IP addresses). A host name is now passed as
3280 "[x.x.x.x]".
3281
328214. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3283 code that specifies a non-restarting handler (typically sigaction() in
3284 modern systems) in an attempt to fix a rare and obscure crash bug.
3285
328615. Narrowed the window for a race in the daemon that could cause it to ignore
3287 SIGCHLD signals. This is not a major problem, because they are used only to
3288 wake it up if nothing else does.
3289
329016. A malformed maildirsize file could cause Exim to calculate negative values
3291 for the mailbox size or file count. Odd effects could occur as a result.
3292 The maildirsize information is now recalculated if the size or filecount
3293 end up negative.
3294
329517. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3296 support for a long time. Removed HAVE_SYS_VFS_H.
3297
ea3a6f44 329818. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3299
330019. Allow an empty sender to be matched against a lookup in an address list.
3301 Previously the only cases considered were a regular expression, or an
3302 empty pattern.
3303
330420. Exim went into a mad DNS lookup loop when doing a callout where the
3305 host was specified on the transport, if the DNS lookup yielded more than
3306 one IP address.
3307
ea3a6f44
NM
330821. The RFC2047 encoding function was originally intended for short strings
3309 such as real names; it was not keeping to the 75-character limit for
3310 encoded words that the RFC imposes. It now respects the limit, and
3311 generates multiple encoded words if necessary. To be on the safe side, I
3312 have increased the buffer size for the ${rfc2047: expansion operator from
3313 1024 to 2048 bytes.
bbe902f0 3314
ea3a6f44
NM
331522. Failure to deliver a bounce message always caused it to be frozen, even if
3316 there was an errors_to setting on the router. The errors_to setting is now
3317 respected.
bbe902f0
PH
3318
331923. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3320 canonical form (fully expanded) before being placed in
3321 $sender_host_address.
3322
332324. Updated eximstats to version 1.33
3324
ea3a6f44
NM
332525. Include certificate and key file names in error message when GnuTLS fails
3326 to set them up, because the GnuTLS error message doesn't include the name
3327 of the failing file when there is a problem reading it.
bbe902f0
PH
3328
332926. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3330 As per change 25.
bbe902f0 3331
ea3a6f44
NM
333227. Reset the locale to "C" after calling embedded Perl, in case it was changed
3333 (this can affect the format of dates).
bbe902f0 3334
ea3a6f44
NM
333528. exim_tidydb, when checking for the continued existence of a message for
3336 which it has found a message-specific retry record, was not finding
3337 messages that were in split spool directories. Consequently, it was
3338 deleting retry records that should have stayed in existence.
bbe902f0
PH
3339
334029. eximstats updated to version 1.35
3341 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3342 1.35 - bugfix such that pie charts by volume are generated correctly
3343
ea3a6f44
NM
334430. The SPA authentication driver was not abandoning authentication and moving
3345 on to the next authenticator when an expansion was forced to fail,
3346 contradicting the general specification for all authenticators. Instead it
3347 was generating a temporary error. It now behaves as specified.
bbe902f0 3348
ea3a6f44
NM
334931. The default ordering of permitted cipher suites for GnuTLS was pessimal
3350 (the order specifies the preference for clients). The order is now AES256,
3351 AES128, 3DES, ARCFOUR128.
bbe902f0 3352
ea3a6f44
NM
335331. Small patch to Sieve code - explicitly set From: when generating an
3354 autoreply.
bbe902f0 3355
ea3a6f44
NM
335632. Exim crashed if a remote delivery caused a very long error message to be
3357 recorded - for instance if somebody sent an entire SpamAssassin report back
3358 as a large number of 550 error lines. This bug was coincidentally fixed by
3359 increasing the size of one of Exim's internal buffers (big_buffer) that
3360 happened as part of the Exiscan merge. However, to be on the safe side, I
3361 have made the code more robust (and fixed the comments that describe what
3362 is going on).
bbe902f0 3363
ea3a6f44
NM
336433. Some experimental protocols are using DNS PTR records for new purposes. The
3365 keys for these records are domain names, not reversed IP addresses. The
3366 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3367 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3368 CAN-2005-0021
3369
ea3a6f44
NM
337034. The host_aton() function is supposed to be passed a string that is known
3371 to be a valid IP address. However, in the case of IPv6 addresses, it was
3372 not checking this. This is a hostage to fortune. Exim now panics and dies
3373 if the condition is not met. A case was found where this could be provoked
3374 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3375 components; fortuitously, this particular loophole had already been fixed
3376 by change 4.50/55 or 4.44/33 above.
3377
3378 If there are any other similar loopholes, the new check in host_aton()
3379 itself should stop them being exploited. The report I received stated that
3380 data on the command line could provoke the exploit when Exim was running as
3381 exim, but did not say which command line option was involved. All I could
3382 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3383 running as the user.
bbe902f0
PH
3384 CAN-2005-0021
3385
ea3a6f44
NM
338635. There was a buffer overflow vulnerability in the SPA authentication code
3387 (which came originally from the Samba project). I have added a test to the
3388 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3389 CAN-2005-0022
3390
ea3a6f44
NM
339136. The daemon start-up calls getloadavg() while still root for those OS that
3392 need the first call to be done as root, but it missed one case: when
3393 deliver_queue_load_max is set with deliver_drop_privilege. This is
3394 necessary for the benefit of the queue runner, because there is no re-exec
3395 when deliver_drop_privilege is set.
bbe902f0 3396
ea3a6f44
NM
339737. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3398 was in use, was not putting the data itself into the right store pool;
3399 consequently, it could be overwritten for a subsequent message in the same
3400 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3401 the caching.)
bbe902f0 3402
ea3a6f44
NM
340338. Sometimes the final signoff response after QUIT could fail to get
3404 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3405 < 0 before doing a fflush(). This bug looks as though it goes back to the
3406 introduction of TLS in release 3.20, but "sometimes" must have been rare
3407 because the tests only now provoked it.
bbe902f0
PH
3408
3409
495ae4b0
PH
3410Exim version 4.43
3411-----------------
3412
3413 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3414 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
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