Pull Andreas Metzler's fix for gnutls_certificate_verify_peers (bug 1095)
[exim.git] / doc / doc-txt / ChangeLog
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1Change log file for Exim from version 4.21
2-------------------------------------------
3
867fcbf5
PP
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
7f2a2a43
PP
91PP/02 Raise smtp_cmd_buffer_size to 16kB.
92 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 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
9e949f00 100PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
101 Bugzilla 1078. Patch from John Horne.
102
103PP/06 Stop make process more reliably on build failure.
104 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 105
555ae6af 106PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
107 Bugzilla 1089. Patch from Heiko Schlittermann.
108
109PP/08 Handle ${run} returning more data than OS pipe buffer size.
110 Bugzilla 1131. Patch from Holger WeiƟ.
555ae6af 111
6f7fe114
PP
112PP/09 Handle IPv6 addresses with SPF.
113 Bugzilla 860. Patch from Wolfgang Breyha.
114
c566dd90
PP
115PP/10 GnuTLS: support TLS 1.2 & 1.1.
116 Bugzilla 1156.
89f897c3
PP
117 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
118 Bugzilla 1095.
c566dd90 119
0ca0cf52 120
10906672
PP
121Exim version 4.76
122-----------------
123
124PP/01 The new ldap_require_cert option would segfault if used. Fixed.
125
754a0503
PP
126PP/02 Harmonised TLS library version reporting; only show if debugging.
127 Layout now matches that introduced for other libraries in 4.74 PP/03.
128
c0c7b2da
PP
129PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
130
e97d1f08
PP
131PP/04 New "dns_use_edns0" global option.
132
084c1d8c
PP
133PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
134 Bugzilla 1098.
135
4e7ee012
PP
136PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
137 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 138
c8d52a00
PP
139TK/01 Updated PolarSSL code to 0.14.2.
140 Bugzilla 1097. Patch from Andreas Metzler.
141
54e7ce4a
PP
142PP/07 Catch divide-by-zero in ${eval:...}.
143 Fixes bugzilla 1102.
144
5ee6f336
PP
145PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
146 Bugzilla 1104.
147
c8d52a00 148TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
149 format-string attack -- SECURITY: remote arbitrary code execution.
150
151TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
152 time unintentionally subject to list matching rules, letting the header
153 cause arbitrary Exim lookups (of items which can occur in lists, *not*
154 arbitrary string expansion). This allowed for information disclosure.
155
156PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
157 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 158
10906672 159
aa097c4c
NM
160Exim version 4.75
161-----------------
162
4c9ef03a 163NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
164 Bugzilla 1073
165
7f3d9eff
TF
166TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
167 This fixes portability to compilers other than gcc, notably
168 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
169
159f52d2
TF
170TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
171 makefiles for portability to HP-UX and POSIX correctness.
172
0cc9542a
PP
173PP/01 Permit LOOKUP_foo enabling on the make command-line.
174 Also via indented variable definition in the Makefile.
175 (Debugging by Oliver Heesakkers).
176
f7274286
PP
177PP/02 Restore caching of spamd results with expanded spamd_address.
178 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
179
7b797365
PP
180PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
181 Improves build reliability. Fix from: Frank Elsner
182
caacae52
NM
183NM/02 Fix wide character breakage in the rfc2047 coding
184 Fixes bug 1064. Patch from Andrey N. Oktyabrski
185
09dcaba9
NM
186NM/03 Allow underscore in dnslist lookups
187 Fixes bug 1026. Patch from Graeme Fowler
188
bc19a55b
PP
189PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
190 Code patches from Adam Ciarcinski of NetBSD.
caacae52 191
bd4c9759
NM
192NM/04 Fixed exiqgrep to cope with mailq missing size issue
193 Fixes bug 943.
194
b72aab72
PP
195PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
196 is logged, to avoid truncation. Patch from John Horne.
197
2fe76745
PP
198PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
199 Patch from Jakob Hirsch.
200
76aa570c
PP
201PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
202 SQL string expansion failure details.
203 Patch from Andrey Oktyabrski.
204
f1e5fef5
PP
205PP/08 Bugzilla 486: implement %M datestamping in log filenames.
206 Patch from Simon Arlott.
207
4d805ee9
PP
208PP/09 New lookups functionality failed to compile on old gcc which rejects
209 extern declarations in function scope.
210 Patch from Oliver Fleischmann
211
cd59ab18
PP
212PP/10 Use sig_atomic_t for flags set from signal handlers.
213 Check getgroups() return and improve debugging.
214 Fixed developed for diagnosis in bug 927 (which turned out to be
215 a kernel bug).
216
332f5cf3
PP
217PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
218 Patch from Mark Zealey.
219
29cfeb94
PP
220PP/12 Bugzilla 1056: Improved spamd server selection.
221 Patch from Mark Zealey.
222
660242ad
PP
223PP/13 Bugzilla 1086: Deal with maildir quota file races.
224 Based on patch from Heiko Schlittermann.
225
bc4bc4c5
PP
226PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
227 Patch from Uwe Doering, sign-off by Michael Haardt.
228
2e64baa9
NM
229NM/05 Fix to spam.c to accommodate older gcc versions which dislike
230 variable declaration deep within a block. Bug and patch from
231 Dennis Davis.
232
bddd7526
PP
233PP/15 lookups-Makefile IRIX compatibilty coercion.
234
6bac1a9a
PP
235PP/16 Make DISABLE_DKIM build knob functional.
236
552193f0
NM
237NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
238 Patch by Simon Arlott
baeee2c1 239
1b587e48
TF
240TF/03 Fix valgrind.h portability to C89 compilers that do not support
241 variable argument macros. Our copy now differs from upstream.
242
aa097c4c 243
8c07b69f
TF
244Exim version 4.74
245-----------------
246
247TF/01 Failure to get a lock on a hints database can have serious
248 consequences so log it to the panic log.
249
c0ea85ab
TF
250TF/02 Log LMTP confirmation messages in the same way as SMTP,
251 controlled using the smtp_confirmation log selector.
252
0761d44e
TF
253TF/03 Include the error message when we fail to unlink a spool file.
254
0a349494
PP
255DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
256 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
257 for maintaining out-of-tree patches for some time.
258
259PP/01 Bugzilla 139: Documentation and portability issues.
260 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
261 Handle per-OS dynamic-module compilation flags.
262
fea24b2e
PP
263PP/02 Let /dev/null have normal permissions.
264 The 4.73 fixes were a little too stringent and complained about the
265 permissions on /dev/null. Exempt it from some checks.
266 Reported by Andreas M. Kirchwitz.
267
6545de78
PP
268PP/03 Report version information for many libraries, including
269 Exim version information for dynamically loaded libraries. Created
270 version.h, now support a version extension string for distributors
271 who patch heavily. Dynamic module ABI change.
272
1670ef10
PP
273PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
274 privilege escalation vulnerability whereby the Exim run-time user
275 can cause root to append content of the attacker's choosing to
276 arbitrary files.
277
c0886197
PP
278PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
279 (Wolfgang Breyha)
280
b7487bce
PP
281PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
282 If dropping privileges for untrusted macros, we disabled normal logging
283 on the basis that it would fail; for the Exim run-time user, this is not
284 the case, and it resulted in successful deliveries going unlogged.
285 Fixed. Reported by Andreas Metzler.
286
8c07b69f 287
97fd1e48 288Exim version 4.73
ed7f7860 289-----------------
97fd1e48
PP
290
291PP/01 Date: & Message-Id: revert to normally being appended to a message,
292 only prepend for the Resent-* case. Fixes regression introduced in
293 Exim 4.70 by NM/22 for Bugzilla 607.
294
6901c596
PP
295PP/02 Include check_rfc2047_length in configure.default because we're seeing
296 increasing numbers of administrators be bitten by this.
297
a8c8d6b5
JJ
298JJ/01 Added DISABLE_DKIM and comment to src/EDITME
299
77bb000f
PP
300PP/03 Bugzilla 994: added openssl_options main configuration option.
301
a29e5231
PP
302PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
303
ec5a0394 304PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 305
55c75993
PP
306PP/06 Adjust NTLM authentication to handle SASL Initial Response.
307
453a6645 308PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
309 without a peer certificate, leading to a segfault because of an
310 assumption that peers always have certificates. Be a little more
453a6645
PP
311 paranoid. Problem reported by Martin Tscholak.
312
8544e77a
PP
313PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
314 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
315 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
316 CL also introduces -bmalware, various -d+acl logging additions and
317 more caution in buffer sizes.
8544e77a 318
83e029d5
PP
319PP/09 Implemented reverse_ip expansion operator.
320
ed7f7860
PP
321PP/10 Bugzilla 937: provide a "debug" ACL control.
322
7d9f747b
PP
323PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
324
4b2241d2
PP
325PP/12 Bugzilla 973: Implement --version.
326
10385c15
PP
327PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
328
dbc4b90d
PP
329PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
330
532be449
PP
331PP/15 Bugzilla 816: support multiple condition rules on Routers.
332
6a8de854 333PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
334 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
335 ignore trailing whitespace.
6a8de854 336
5dc43717
JJ
337JJ/02 prevent non-panic DKIM error from being sent to paniclog
338
339JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
340 "exim" to be used
55c75993 341
3346ab01
PP
342PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
343 Notification from Dr Andrew Aitchison.
344
491fab4c
PP
345PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
346 ExtendedDetectionInfo response format.
347 Notification from John Horne.
348
13eb9497
PP
349PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
350 compatible.
351
352PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
353 XSL and documented dependency on system catalogs, with examples of how
354 it normally works.
355
7f36d675
DW
356DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
357 access.
358
c1d94452
DW
359DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
360 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
361 configuration file which is writeable by the Exim user or group.
362
e2f5dc15
DW
363DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
364 of configuration files to cover files specified with the -C option if
365 they are going to be used with root privileges, not just the default
366 configuration file.
367
cd25e41d
DW
368DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
369 option (effectively making it always true).
370
261dc43e
DW
371DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
372 files to be used while preserving root privileges.
373
fa32850b
DW
374DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
375 that rogue child processes cannot use them.
376
79d4bc3d
PP
377PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
378 run-time user, instead of root.
379
43236f35 380PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
381 Exim run-time user without dropping privileges.
382
fb08281f
DW
383DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
384 result string, instead of calling string_vformat() twice with the same
385 arguments.
3346ab01 386
74935b98
DW
387DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
388 for other users. Others should always drop root privileges if they use
389 -C on the command line, even for a whitelisted configure file.
390
90b6341f
DW
391DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
392
57730b52
ML
393NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
394
66581d1e 395
465e92cf
JJ
396Exim version 4.72
397-----------------
398
453a6645
PP
399JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
400 $data_path, and $header_path variables; fixed documentation bugs and
401 typos
465e92cf 402
453a6645
PP
403JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
404 exipick to access non-standard spools, including the "frozen" queue
405 (Finput)
edae0343 406
9bd3e22c
NM
407NM/01 Bugzilla 965: Support mysql stored procedures.
408 Patch from Alain Williams
409
bb576ff7
NM
410NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
411
5a1a5845
NM
412NM/03 Bugzilla 955: Documentation fix for max_rcpts.
413 Patch from Andreas Metzler
414
981a9fad
NM
415NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
416 Patch from Kirill Miazine
417
7fc497ee
NM
418NM/05 Bugzilla 671: Added umask to procmail example.
419
1a41defa
JJ
420JJ/03 installed exipick 20100323.0, fixing doc bug
421
a466095c 422NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 423 directory. Notification and patch from Dan Rosenberg.
a466095c 424
94a6bd0b
NM
425TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
426
427TK/02 Improve log output when DKIM signing operation fails.
428
429MH/01 Treat the transport option dkim_domain as a colon separated
430 list, not as a single string, and sign the message with each element,
431 omitting multiple occurences of the same signer.
432
c1b141a8
NM
433NM/07 Null terminate DKIM strings, Null initialise DKIM variable
434 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 435
b26eacf1 436NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
437 Patch by Simon Arlott
438
179c5980 439PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 440 MBX locking. Notification from Dan Rosenberg.
179c5980 441
9bd3e22c 442
7c6d71af
NM
443Exim version 4.71
444-----------------
445
7d9f747b 446TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 447
f013fb92
NM
448NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
449
0eb8eedd
NM
450NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
451
663ee6d9
NM
452NM/03 Bugzilla 847: Enable DNSDB lookup by default.
453
177ebd9b
NM
454NM/04 Bugzilla 915: Flag broken perl installation during build.
455
7c6d71af 456
210f147e
NM
457Exim version 4.70
458-----------------
459
cdd3bb85 460TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 461 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
462
463TK/02 Write list of recipients to X-Envelope-Sender header when building
464 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 465 Hirsch).
cdd3bb85
TK
466
467TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
468 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 469 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
470
471TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
472 by Mark Daniel Reidel <mr@df.eu>.
473
210f147e
NM
474NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
475 When building exim an external PCRE library is now needed -
476 PCRE is a system library on the majority of modern systems.
477 See entry on PCRE_LIBS in EDITME file.
478
deafd5b3
NM
479NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
480 conversation. Added nologin parameter to request.
7d9f747b 481 Patch contributed by Kirill Miazine.
deafd5b3 482
089793a4
TF
483TF/01 Do not log submission mode rewrites if they do not change the address.
484
5f16ca82
TF
485TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
486
dae9d94e 487NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 488 log files in place. Contributed by Roberto Lima.
dae9d94e 489
7d9f747b 490NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 491
06864c44
TF
492TF/03 Bugzilla 615: When checking the local_parts router precondition
493 after a local_part_suffix or local_part_prefix option, Exim now
494 does not use the address's named list lookup cache, since this
495 contains cached lookups for the whole local part.
496
65a7d8c3 497NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 498 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 499
23510047 500TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 501
7d9f747b 502NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 503
7d8eec3a 504NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 505 Patch provided by Jan Srzednicki.
6c588e74 506
89dec7b6
TF
507TF/05 Leading white space used to be stripped from $spam_report which
508 wrecked the formatting. Now it is preserved.
5f28a6e8 509
a99de90c
TF
510TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
511 that they are available at delivery time.
512
e2803e40
TF
513TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
514
7199e1ee
TF
515TF/08 TLS error reporting now respects the incoming_interface and
516 incoming_port log selectors.
517
e276e04b
TF
518TF/09 Produce a more useful error message if an SMTP transport's hosts
519 setting expands to an empty string.
520
ce552449 521NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 522 Patch provided by Phil Pennock.
ce552449 523
e765a0f1 524NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 525 Patch provided by Richard Godbee.
e765a0f1 526
4f054c63 527NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 528 acl_smtp_notquit, added index entry.
4f054c63 529
7d9f747b
PP
530NM/09 Bugzilla 787: Potential buffer overflow in string_format.
531 Patch provided by Eugene Bujak.
24c929a2 532
7d9f747b
PP
533NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
534 accept(). Patch provided by Maxim Dounin.
cf73943b 535
b52bc06e 536NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 537 Patch provided by Phil Pennock.
b52bc06e 538
447de4b0
NM
539NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
540
4c69d561 541NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 542 Patch provided by Brad "anomie" Jorsch.
4c69d561 543
d5c39246 544NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 545 Patch provided by Dean Brooks.
9b989985 546
0b23848a
TK
547TK/05 Add native DKIM support (does not depend on external libraries).
548
8f3414a1 549NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 550 Patch provided by Graeme Fowler.
e2aacdfd 551
fb6f955d
NM
552NM/16 Bugzilla 851: Documentation example syntax fix.
553
554NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 555
7d9f747b
PP
556NM/18 Bugzilla 894: Fix issue with very long lines including comments in
557 lsearch.
dbb0bf41 558
7d9f747b
PP
559NM/19 Bugzilla 745: TLS version reporting.
560 Patch provided by Phil Pennock.
f3766eb5 561
7d9f747b
PP
562NM/20 Bugzilla 167: bool: condition support.
563 Patch provided by Phil Pennock.
36f12725 564
7d9f747b
PP
565NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
566 clients. Patch provided by Phil Pennock.
e6060e2c 567
7d9f747b
PP
568NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
569 Patch provided by Brad "anomie" Jorsch.
5eb690a1 570
7d9f747b
PP
571NM/23 Bugzilla 687: Fix misparses in eximstats.
572 Patch provided by Heiko Schlittermann.
d5c13d66 573
7d9f747b
PP
574NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
575 Patch provided by Heiko Schlittermann.
b2335c0b 576
7d9f747b 577NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 578 plus update to original patch.
f4cd9433 579
7d9f747b 580NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 581
7d9f747b
PP
582NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
583 Patch provided by David Brownlee.
8dc71ab3 584
7d9f747b 585NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 586
7d9f747b 587NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 588
7d9f747b 589NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 590
7d9f747b 591NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 592
17792b53 593NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 594 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 595
7d9f747b
PP
596NM/33 Bugzilla 898: Transport filter timeout fix.
597 Patch by Todd Rinaldo.
52383f8f 598
7d9f747b
PP
599NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
600 Patch by Serge Demonchaux.
5ca6d115 601
7d9f747b
PP
602NM/35 Bugzilla 39: Base64 decode bug fixes.
603 Patch by Jakob Hirsch.
baee9eee 604
7d9f747b 605NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 606
7d9f747b 607NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 608
7d9f747b 609NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 610
7d9f747b 611NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 612
deafd5b3 613
47db1125
NM
614Exim version 4.69
615-----------------
616
4b3504d0
TK
617TK/01 Add preliminary DKIM support. Currently requires a forked version of
618 ALT-N's libdkim that I have put here:
619 http://duncanthrax.net/exim-experimental/
620
621 Note to Michael Haardt: I had to rename some vars in sieve.c. They
622 were called 'true' and it seems that C99 defines that as a reserved
623 keyword to be used with 'bool' variable types. That means you could
624 not include C99-style headers which use bools without triggering
625 build errors in sieve.c.
626
81ea09ca
NM
627NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
628 as mailq or other aliases. Changed the --help handling significantly
629 to do whats expected. exim_usage() emits usage/help information.
630
f13cddcb
SC
631SC/01 Added the -bylocaldomain option to eximstats.
632
7d9f747b 633NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 634
7d9f747b 635NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 636
7d9f747b 637NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
638
639
eb4c0de6
PH
640Exim version 4.68
641-----------------
642
643PH/01 Another patch from the Sieve maintainer.
644
6a3bceb1
PH
645PH/02 When an IPv6 address is converted to a string for single-key lookup
646 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
647 dots are used instead of colons so that keys in lsearch files need not
648 contain colons. This was done some time before quoting was made available
649 in lsearch files. However, iplsearch files do require colons in IPv6 keys
650 (notated using the quote facility) so as to distinguish them from IPv4
651 keys. This meant that lookups for IP addresses in host lists did not work
652 for iplsearch lookups.
653
654 This has been fixed by arranging for IPv6 addresses to be expressed with
655 colons if the lookup type is iplsearch. This is not incompatible, because
656 previously such lookups could never work.
657
658 The situation is now rather anomolous, since one *can* have colons in
659 ordinary lsearch keys. However, making the change in all cases is
660 incompatible and would probably break a number of configurations.
661
2e30fa9d
TK
662TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
663 version.
664
0806a9c5
MH
665MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
666 conversion specification without a maximum field width, thereby enabling
667 a rogue spamd server to cause a buffer overflow. While nobody in their
668 right mind would setup Exim to query an untrusted spamd server, an
669 attacker that gains access to a server running spamd could potentially
670 exploit this vulnerability to run arbitrary code as the Exim user.
671
ae276964
TK
672TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
673 $primary_hostname instead of what libspf2 thinks the hosts name is.
674
0f2cbd1b
MH
675MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
676 a directory entry by the name of the lookup key. Previously, if a
677 symlink pointed to a non-existing file or a file in a directory that
678 Exim lacked permissions to read, a lookup for a key matching that
679 symlink would fail. Now it is enough that a matching directory entry
680 exists, symlink or not. (Bugzilla 503.)
681
2b85bce7
PH
682PH/03 The body_linecount and body_zerocount variables are now exported in the
683 local_scan API.
684
93655c46
PH
685PH/04 Added the $dnslist_matched variable.
686
6c512171
PH
687PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
688 This means they are set thereafter only if the connection becomes
689 encrypted.
690
691PH/06 Added the client_condition to authenticators so that some can be skipped
692 by clients under certain conditions.
693
aa6dc513
PH
694PH/07 The error message for a badly-placed control=no_multiline_responses left
695 "_responses" off the end of the name.
696
a96603a0
PH
697PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
698
8f240103
PH
699PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
700 (without spaces) instead of just copying the configuration text.
701
702PH/10 Added the /noupdate option to the ratelimit ACL condition.
703
d677b2f2
PH
704PH/11 Added $max_received_linelength.
705
d52120f2
PH
706PH/12 Added +ignore_defer and +include_defer to host lists.
707
64f2600a
PH
708PH/13 Installed PCRE version 7.2. This needed some changes because of the new
709 way in which PCRE > 7.0 is built.
710
8669f003
PH
711PH/14 Implemented queue_only_load_latch.
712
a4dc33a8
PH
713PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
714 MAIL command. The effect was to mangle the value on 64-bit systems.
715
d6a60c0f
PH
716PH/16 Another patch from the Sieve maintainer.
717
8f128379
PH
718PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
719
8932dffe
PH
720PH/18 If a system quota error occurred while trying to create the file for
721 a maildir delivery, the message "Mailbox is full" was not appended to the
722 bounce if the delivery eventually timed out. Change 4.67/27 below applied
723 only to a quota excession during the actual writing of the file.
d6a60c0f 724
ddea74fa 725PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
726 characters?) which causes problems in log lines. The DN values are now
727 passed through string_printing() before being added to log lines.
728
ddea74fa 729PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
730 and InterBase are left for another time.)
731
ddea74fa
PH
732PH/21 Added message_body_newlines option.
733
ce9f225c
PH
734PH/22 Guard against possible overflow in moan_check_errorcopy().
735
19897d52
PH
736PH/23 POSIX allows open() to be a macro; guard against that.
737
bc64a74d
PH
738PH/24 If the recipient of an error message contained an @ in the local part
739 (suitably quoted, of course), incorrect values were put in $domain and
740 $local_part during the evaluation of errors_copy.
741
eb4c0de6 742
b4ed4da0
PH
743Exim version 4.67
744-----------------
745
22ad45c9
MH
746MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
747 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
748 Jan Srzednicki.
749
b4ed4da0
PH
750PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
751 issue a MAIL command.
752
431b7361
PH
753PH/02 In an ACL statement such as
754
755 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
756
757 if a client was not listed at all, or was listed with a value other than
758 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
759 the condition was not true (as it should be), so access was not denied.
760 The bug was that the ! inversion was incorrectly passed on to the second
761 item. This has been fixed.
762
763PH/03 Added additional dnslists conditions == and =& which are different from
764 = and & when the dns lookup returns more than one IP address.
765
83da1223
PH
766PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
767 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
768
54fc8428
PH
769PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
770 FSYNC, which compiles an option called disable_fsync that allows for
771 bypassing fsync(). The documentation is heavily laced with warnings.
772
34c5e8dd
SC
773SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
774
bbe15da8
PH
775PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
776 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
777 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
778 including adding "make clean"; (3) Added -fPIC when compiling the test
779 dynamically loaded module, to get rid of a warning.
780
0e8a9471
MH
781MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
782 message fails, move_frozen_messages = true and ignore_bounce_errors_after
783 = 0s. The bug is otherwise harmless.
784
f0872424
PH
785PH/07 There was a bug in the dovecot authenticator such that the value of
786 $auth1 could be overwritten, and so not correctly preserved, after a
787 successful authentication. This usually meant that the value preserved by
788 the server_setid option was incorrect.
789
b01dd148
PH
790PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
791
6bf342e1
PH
792PH/09 Installed PCRE release 7.0.
793
273f34d0
PH
794PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
795 run for batched SMTP input. It is now run at the start of every message
796 in the batch. While fixing this I discovered that the process information
797 (output by running exiwhat) was not always getting set for -bs and -bS
798 input. This is fixed, and it now also says "batched" for BSMTP.
799
cf8b11a5
PH
800PH/11 Added control=no_pipelining.
801
41c7c167
PH
802PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
803 patch, slightly modified), and move the expansion of helo_data till after
804 the connection is made in the smtp transport (so it can use these
805 values).
806
9c57cbc0
PH
807PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
808
f3f065bb
PH
809PH/14 Added log_selector = +pid.
810
047bdd8c
PH
811PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
812
0ce9abe6
PH
813PH/16 Add ${if forany and ${if forall.
814
0e22dfd1
PH
815PH/17 Added dsn_from option to vary the From: line in DSNs.
816
4c590bd1
PH
817PH/18 Flush SMTP output before performing a callout, unless control =
818 no_callout_flush is set.
819
09945f1e
PH
820PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
821 was true (the default) a successful delivery failed to delete the retry
822 item, thus causing premature timeout of the address. The bug is now
823 fixed.
824
c51b8e75
PH
825PH/20 Added hosts_avoid_pipelining to the smtp transport.
826
e28326d8
PH
827PH/21 Long custom messages for fakedefer and fakereject are now split up
828 into multiline reponses in the same way that messages for "deny" and
829 other ACL rejections are.
830
75b1493f
PH
831PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
832 with slight modification.
833
7c5214ec
PH
834PH/23 Applied sieve patches from the maintainer "tracking the latest notify
835 draft, changing the syntax and factoring some duplicate code".
836
4311097e
PH
837PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
838 for deliveries of the second and subsequent messages over the same SMTP
839 connection.
840
29f89cad
PH
841PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
842 ${reduce, with only minor "tidies".
843
5e687460
SC
844SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
845
c3611384
PH
846PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
847 expansion side effects.
848
5a11a7b4
PH
849PH/27 When a message times out after an over-quota error from an Exim-imposed
850 quota, the bounce message says "mailbox is full". This message was not
851 being given when it was a system quota that was exceeded. It now should
852 be the same.
853
0e20aff9
MH
854MH/03 Made $recipients available in local_scan(). local_scan() already has
855 better access to the recipient list through recipients_list[], but
856 $recipients can be useful in postmaster-provided expansion strings.
857
ca86f471
PH
858PH/28 The $smtp_command and $smtp_command_argument variables were not correct
859 in the case of a MAIL command with additional options following the
860 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
861 were accidentally chopped off.
862
a14e5636
PH
863PH/29 SMTP synchronization checks are implemented when a command is read -
864 there is a check that no more input is waiting when there shouldn't be
865 any. However, for some commands, a delay in an ACL can mean that it is
866 some time before the response is written. In this time, more input might
867 arrive, invalidly. So now there are extra checks after an ACL has run for
868 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
869 pipelining has not been advertised.
870
ec95d1a6
PH
871PH/30 MH's patch to allow iscntrl() characters to be list separators.
872
42855d71
PH
873PH/31 Unlike :fail:, a custom message specified with :defer: was not being
874 returned in the SMTP response when smtp_return_error_details was false.
875 This has been fixed.
876
57c2c631
PH
877PH/32 Change the Dovecot authenticator to use read() and write() on the socket
878 instead of the C I/O that was originally supplied, because problems were
879 reported on Solaris.
880
58c01c94
PH
881PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
882 Exim which did not show up earlier: it was assuming that a call to
883 SSL_CTX_set_info_callback() might give an error value. In fact, there is
884 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
885 was a macro that became an assignment, so it seemed to work. This has
886 changed to a proper function call with a void return, hence the compile
887 error. Exim's code has been fixed.
888
dee5a20a
PH
889PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
890 cpus.
891
d2ee6114
PH
892PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
893
b2d5182b
PH
894PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
895
79749a79
PH
896PH/37 If a message is not accepted after it has had an id assigned (e.g.
897 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
898 "Completed" line in the log. When some messages of this type were
899 selected by exigrep, they were listed as "not completed". Others were
900 picked up by some special patterns. I have improved the selection
901 criteria to be more general.
79749a79 902
c456d9bb
PH
903PH/38 The host_find_failed option in the manualroute router can now be set
904 to "ignore", to completely ignore a host whose IP address cannot be
905 found. If all hosts are ignored, the behaviour is controlled by the new
906 host_all_ignored option.
907
cd9868ec
PH
908PH/39 In a list of hosts for manualroute, if one item (either because of multi-
909 homing or because of multiple MX records with /mx) generated more than
910 one IP address, and the following item turned out to be the local host,
911 all the secondary addresses of the first item were incorrectly removed
912 from the list, along with the local host and any following hosts (which
913 is what is supposed to happen).
914
ebeaf996
PH
915PH/40 When Exim receives a message, it writes the login name, uid, and gid of
916 whoever called Exim into the -H file. In the case of the daemon it was
917 behaving confusingly. When first started, it used values for whoever
918 started the daemon, but after a SIGHUP it used the Exim user (because it
919 calls itself on a restart). I have changed the code so that it now always
920 uses the Exim user.
921
2679d413
PH
922PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
923 message are rejected with the same error (e.g. no authentication or bad
924 sender address), and a DATA command is nevertheless sent (as can happen
925 with PIPELINING or a stupid MUA), the error message that was given to the
926 RCPT commands is included in the rejection of the DATA command. This is
927 intended to be helpful for MUAs that show only the final error to their
928 users.
929
84024b72
PH
930PH/42 Another patch from the Sieve maintainer.
931
8005d38e
SC
932SC/02 Eximstats - Differentiate between permanent and temporary rejects.
933 Eximstats - Fixed some broken HTML links and added missing column headers
934 (Jez Hancock).
935 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
936 columns for Rejects, Temp Rejects, Ham, and Spam rows.
937
3298c6c6
SC
938SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
939
a43a27c5
PH
940PH/43 Yet another patch from the Sieve maintainer.
941
58eb016e 942PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
943 the response to the final '.' that terminates a message, but only in the
944 case where the client has not sent further data following the '.'
945 (unfortunately, this is allowed). However, in many cases there won't be
946 any further data because there won't be any more messages to send. A call
947 to select() can be used: if it shows that the input is "ready", there is
948 either input waiting, or the socket has been closed. An attempt to read
949 the next input character can distinguish the two cases. Previously, Exim
58eb016e 950 would have sent an OK response which the client would never have see.
563b63fa
PH
951 This could lead to message repetition. This fix should cure that, at
952 least in a lot of common cases.
58eb016e 953
b43a74ea
PH
954PH/45 Do not advertise STARTTLS in response to HELP unless it would be
955 advertised in response to EHLO.
956
b4ed4da0 957
5dd1517f
PH
958Exim version 4.66
959-----------------
960
961PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
962 fixed by 4.65/MH/01 (is this a record?) are fixed:
963
964 (i) An empty string was always treated as zero by the numeric comparison
965 operators. This behaviour has been restored.
966
967 (ii) It is documented that the numeric comparison operators always treat
968 their arguments as decimal numbers. This was broken in that numbers
969 starting with 0 were being interpreted as octal.
970
971 While fixing these problems I realized that there was another issue that
972 hadn't been noticed. Values of message_size_limit (both the global option
973 and the transport option) were treated as octal if they started with 0.
974 The documentation was vague. These values are now always treated as
975 decimal, and I will make that clear in the documentation.
976
977
93cfa765
TK
978Exim version 4.65
979-----------------
980
981TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
982 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
983 versions. (#438)
984
d6066548
MH
985MH/01 Don't check that the operands of numeric comparison operators are
986 integers when their expansion is in "skipping" mode (fixes bug
987 introduced by 4.64-PH/07).
988
4362ff0d
PH
989PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
990 child addresses, Exim now panics and dies. Previously, because the count
991 is held in a short int, deliveries were likely to be lost. As such a
992 large number of recipients for a single message is ridiculous
993 (performance will be very, very poor), I have chosen to impose a limit
994 rather than extend the field.
995
93cfa765 996
944e9e9c
TF
997Exim version 4.64
998-----------------
aa41d2de 999
21d74bd9
TK
1000TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
1001 leftover -K file (the existence of which was triggered by #402).
1002 While we were at it, introduced process PID as part of the -K
1003 filename. This should rule out race conditions when creating
1004 these files.
1005
1006TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
1007 processing considerably. Previous code took too long for large mails,
1008 triggering a timeout which in turn triggers #401.
1009
1010TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
1011 in the DK code in transports.c. sendfile() is not really portable,
1012 hence the _LINUX specificness.
944e9e9c
TF
1013
1014TF/01 In the add_headers option to the mail command in an Exim filter,
1015 there was a bug that Exim would claim a syntax error in any
1016 header after the first one which had an odd number of characters
1017 in the field name.
1018
2b1c6e3a
PH
1019PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
1020 callout verification, Exim cached a "reject" for the entire domain. This
1021 is correct for most verifications, but it is not correct for a recipient
1022 verification with use_sender or use_postmaster set, because in that case
1023 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
1024 case of MAIL FROM:<> rejection from other early rejections (e.g.
1025 rejection of HELO). When verifying a recipient using a non-null MAIL
1026 address, the cache is ignored if it shows MAIL FROM:<> rejection.
1027 Whatever the result of the callout, the value of the domain cache is
1028 left unchanged (for any other kind of callout, getting as far as trying
1029 RCPT means that the domain itself is ok).
1030
1f872c80
PH
1031PH/02 Tidied a number of unused variable and signed/unsigned warnings that
1032 gcc 4.1.1 threw up.
1033
1034PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1035 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1036 session, the daemon ignores ECONNECT errors and logs others; it now
1037 ignores EPIPE as well.
1038
d203e649
PH
1039PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1040 (quoted-printable decoding).
1041
cc2ed8f7 1042PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 1043 later the small subsequent patch to fix an introduced bug.
f951fd57 1044
ddfcd446
PH
1045PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1046
d45b1de8
PH
1047PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1048
1049PH/08 An error is now given if message_size_limit is specified negative.
1050
38a0a95f 1051PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 1052 to be given (somewhat) arbitrary names.
38a0a95f 1053
a2405d83
JJ
1054JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1055 in 4.64-PH/09.
1056
1057JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1058 miscellaneous code fixes
1059
6ea85e9a
PH
1060PH/10 Added the log_reject_target ACL modifier to specify where to log
1061 rejections.
1062
26da7e20
PH
1063PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1064 hostname. This is wrong, because it relates to the incoming message (and
1065 probably the interface on which it is arriving) and not to the outgoing
1066 callout (which could be using a different interface). This has been
1067 changed to use the value of the helo_data option from the smtp transport
1068 instead - this is what is used when a message is actually being sent. If
1069 there is no remote transport (possible with a router that sets up host
1070 addresses), $smtp_active_hostname is used.
6ea85e9a 1071
14aa5a05 1072PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 1073 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
1074 (a) The code assumed that strncpy() returns a negative number on buffer
1075 overflow, which isn't the case. Replaced with Exim's string_format()
1076 function.
1077 (b) There were several signed/unsigned issues. I just did the minimum
1078 hacking in of casts. There is scope for a larger refactoring.
1079 (c) The code used strcasecmp() which is not a standard C function.
1080 Replaced with Exim's strcmpic() function.
1081 (d) The code set only $1; it now sets $auth1 as well.
1082 (e) A simple test gave the error "authentication client didn't specify
1083 service in request". It would seem that Dovecot has changed its
1084 interface. Fortunately there's a specification; I followed it and
1085 changed what the client sends and it appears to be working now.
1086
ff75a1f7
PH
1087PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1088 decoding.
1089
e6f6568e
PH
1090PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1091 address A is aliased to B and C, where B exists and C does not. Without
1092 -v the output is "A verified" because verification stops after a
1093 successful redirection if more than one address is generated. However,
1094 with -v the child addresses are also verified. Exim was outputting "A
1095 failed to verify" and then showing the successful verification for C,
1096 with its parentage. It now outputs "B failed to verify", showing B's
1097 parentage before showing the successful verification of C.
1098
d6f6e0dc
PH
1099PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1100 look up a TXT record in a specific list after matching in a combined
1101 list.
1102
322050c2
PH
1103PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1104 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1105 they consult the DNS. I had assumed they would set it the way they
1106 wanted; and indeed my experiments on Linux seem to show that in some
1107 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1108 To be on the safe side, however, I have now made the interface to
1109 host_find_byname() similar to host_find_bydns(), with an argument
1110 containing the DNS resolver options. The host_find_byname() function now
1111 sets these options at its start, just as host_find_bydns() does. The smtp
1112 transport options dns_qualify_single and dns_search_parents are passed to
1113 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1114 of host_find_byname() use the default settings of RES_DEFNAMES
1115 (qualify_single) but not RES_DNSRCH (search_parents).
1116
08955dd3
PH
1117PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1118 spool_read_header() do less string testing, by means of a preliminary
1119 switch on the second character of optional "-foo" lines. (This is
1120 overdue, caused by the large number of possibilities that now exist.
1121 Originally there were few.) While I was there, I also converted the
1122 str(n)cmp tests so they don't re-test the leading "-" and the first
1123 character, in the hope this might squeeze out yet more improvement.
1124
1eccaa59
PH
1125PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1126 flag allowing group syntax was set by the header_syntax check but not
1127 turned off, possible causing trouble later; (2) The flag was not being
1128 set at all for the header_verify test, causing "group"-style headers to
1129 be rejected. I have now set it in this case, and also caused header_
1130 verify to ignore an empty address taken from a group. While doing this, I
1131 came across some other cases where the code for allowing group syntax
1132 while scanning a header line wasn't quite right (mostly, not resetting
1133 the flag correctly in the right place). These bugs could have caused
1134 trouble for malformed header lines. I hope it is now all correct.
1135
602e59e5
PH
1136PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1137 with the "reply" argument non-NULL. The code, however (which originally
1138 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1139 but it didn't always do it. This confused somebody who was copying the
1140 code for some other use. I have removed all the tests.
1141
411ef850
PH
1142PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1143 feature that was used to support insecure browsers during the U.S. crypto
1144 embargo. It requires special client support, and Exim is probably the
1145 only MTA that supported it -- and would never use it because real RSA is
1146 always available. This code has been removed, because it had the bad
1147 effect of slowing Exim down by computing (never used) parameters for the
1148 RSA_EXPORT functionality.
1149
7befa435
PH
1150PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1151 authenticator to fail if there's a tab character in the incoming data
1152 (there should never be unless someone is messing about, as it's supposed
1153 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1154 if the connection is using TLS or if the remote IP is the same as the
1155 local IP, and the "valid-client-cert option" if a client certificate has
1156 been verified.
1157
48da4259 1158PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1159 authenticators. This can be used for authorization after authentication
1160 succeeds. (In the case of plaintext, it servers for both authentication
1161 and authorization.)
1162
48da4259
PH
1163PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1164 if any retry times were supplied.
1165
d1d5595c
PH
1166PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1167 connection, where there is no client IP address to check. In this
1168 situation, the verify now always succeeds.
1169
0ef732d9
PH
1170PH/25 Applied John Jetmore's -Mset patch.
1171
328895cc
PH
1172PH/26 Added -bem to be like -Mset, but loading a message from a file.
1173
fd700877
PH
1174PH/27 In a string expansion for a processed (not raw) header when multiple
1175 headers of the same name were present, leading whitespace was being
1176 removed from all of them, but trailing whitespace was being removed only
1177 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1178 before concatenation. Completely empty headers in a concatenation (as
1179 before) are ignored.
fd700877 1180
8dce1a6f
PH
1181PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1182 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1183
17af4a17
PH
1184PH/29 [Removed. This was a change that I later backed out, and forgot to
1185 correct the ChangeLog entry (that I had efficiently created) before
1186 committing the later change.]
f6c332bd
PH
1187
1188PH/30 Exim was sometimes attempting to deliver messages that had suffered
1189 address errors (4xx response to RCPT) over the same connection as other
1190 messages routed to the same hosts. Such deliveries are always "forced",
1191 so retry times are not inspected. This resulted in far too many retries
1192 for the affected addresses. The effect occurred only when there were more
1193 hosts than the hosts_max_try setting in the smtp transport when it had
1194 the 4xx errors. Those hosts that it had tried were not added to the list
1195 of hosts for which the message was waiting, so if all were tried, there
1196 was no problem. Two fixes have been applied:
1197
1198 (i) If there are any address or message errors in an SMTP delivery, none
1199 of the hosts (tried or untried) are now added to the list of hosts
1200 for which the message is waiting, so the message should not be a
1201 candidate for sending over the same connection that was used for a
1202 successful delivery of some other message. This seems entirely
1203 reasonable: after all the message is NOT "waiting for some host".
1204 This is so "obvious" that I'm not sure why it wasn't done
1205 previously. Hope I haven't missed anything, but it can't do any
1206 harm, as the worst effect is to miss an optimization.
1207
1208 (ii) If, despite (i), such a delivery is accidentally attempted, the
1209 routing retry time is respected, so at least it doesn't keep
1210 hammering the server.
1211
c1114884
PH
1212PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1213 in ${readsocket because some servers need this prod.
1214
7a0743eb
PH
1215PH/32 Added some extra debug output when updating a wait-xxx database.
1216
0d85fa3f
PH
1217PH/33 The hint "could be header name not terminated by colon", which has been
1218 given for certain expansion errors for a long time, was not being given
1219 for the ${if def:h_colon_omitted{... case.
1220
1bf43b78
PH
1221PH/34 The spec says: "With one important exception, whenever a domain list is
1222 being scanned, $domain contains the subject domain." There was at least
1223 one case where this was not true.
1224
520de300
PH
1225PH/35 The error "getsockname() failed: connection reset by peer" was being
1226 written to the panic log as well as the main log, but it isn't really
1227 panic-worthy as it just means the connection died rather early on. I have
1228 removed the panic log writing for the ECONNRESET error when getsockname()
1229 fails.
1230
48c7f9e2
PH
1231PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1232 runs only) independently of the message's sender address. This meant
1233 that, if the 4xx error was in fact related to the sender, a different
1234 message to the same recipient with a different sender could confuse
1235 things. In particualar, this can happen when sending to a greylisting
1236 server, but other circumstances could also provoke similar problems.
1237 I have changed the default so that the retry time for these errors is now
1238 based a combination of the sender and recipient addresses. This change
1239 can be overridden by setting address_retry_include_sender=false in the
1240 smtp transport.
1241
99ea1c86
PH
1242PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1243 remote server are returned as part of bounce messages. This was not
1244 happening for LMTP over a pipe (the lmtp transport), but now it is the
1245 same for both kinds of LMTP.
1246
a2042e78
PH
1247PH/38 Despite being documented as not happening, Exim was rewriting addresses
1248 in header lines that were in fact CNAMEs. This is no longer the case.
1249
4fbcfc2e
PH
1250PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1251 and queue runs started by the daemon processed all messages. This has
1252 been fixed so that -R and -S can now usefully be given with -q<time>.
1253
aa41d2de
PH
1254PH/40 Import PCRE release 6.7 (fixes some bugs).
1255
af561417
PH
1256PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1257
3cc66b45
PH
1258PH/42 Give an error if -q is specified more than once.
1259
194cc0e4
PH
1260PH/43 Renamed the variables $interface_address and $interface_port as
1261 $received_ip_address and $received_port, to make it clear that these
1262 values apply to message reception, and not to the outgoing interface when
1263 a message is delivered. (The old names remain recognized, of course.)
1264
a401ddaa
PH
1265PH/44 There was no timeout on the connect() call when using a Unix domain
1266 socket in the ${readsocket expansion. There now is.
1267
4e88a19f
PH
1268PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1269 be meaningful with "accept".
1270
d7d7b289
SC
1271SC/01 Eximstats V1.43
1272 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1273
1274SC/02 Eximstats V1.44
1275 Use a glob alias rather than an array ref in the generated
1276 parser. This improves both readability and performance.
1277
1278SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1279 Collect SpamAssassin and rejection statistics.
1280 Don't display local sender or destination tables unless
1281 there is data to show.
1282 Added average volumes into the top table text output.
1283
1284SC/04 Eximstats V1.46
1285 Collect data on the number of addresses (recipients)
1286 as well as the number of messages.
1287
1288SC/05 Eximstats V1.47
1289 Added 'Message too big' to the list of mail rejection
1290 reasons (thanks to Marco Gaiarin).
1291
1292SC/06 Eximstats V1.48
1293 Mainlog lines which have GMT offsets and are too short to
1294 have a flag are now skipped.
1295
1296SC/07 Eximstats V1.49 (Alain Williams)
1297 Added the -emptyok flag.
1298
1299SC/08 Eximstats V1.50
1300 Fixes for obtaining the IP address from reject messages.
1301
0ea2a468
JJ
1302JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1303 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1304 whitesspace changes from 4.64-PH/27
1305
1306JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1307 match 4.64-PH/13
1308
1309JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1310 are found, allow negative numbers in numeric criteria)
1311
1312JJ/06 exipick.20061117.2, added new $message_body_missing variable
1313
1314JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1315 to match changes made in 4.64-PH/43
1316
8a10f5a4
PH
1317PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1318
30e18802
PH
1319PH/47 Put in an explicit test for a DNS lookup of an address record where the
1320 "domain" is actually an IP address, and force a failure. This locks out
1321 those revolvers/nameservers that support "A-for-A" lookups, in
1322 contravention of the specifications.
1323
55728a4f
PH
1324PH/48 When a host name was looked up from an IP address, and the subsequent
1325 forward lookup of the name timed out, the host name was left in
1326 $sender_host_name, contrary to the specification.
d7d7b289 1327
d7837193
PH
1328PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1329 restricted to single-key lookups, Exim was not diagnosing an error if
1330 * or *@ was used with a query-style lookup.
1331
87054a31
PH
1332PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1333
ea2c01d2
MH
1334MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1335 long ago, but noone interested enough thought of it. Let's just say that
1336 the "1.1" means that there are some new functions that weren't there at
1337 some point in the past.
1338
e4fa6968
PH
1339PH/51 Error processing for expansion failure of helo_data from an smtp
1340 transport during callout processing was broken.
1341
56f5d9bd
PH
1342PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1343 tested/used via the -bh/-bhc/-bs options.
1344
922e1c28
PH
1345PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1346 bug, fixed in subsequent PCRE releases).
1347
21eb6e72
PH
1348PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1349 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1350
a0540757
PH
1351PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1352
944e9e9c 1353
478be7b0
SC
1354Exim version 4.63
1355-----------------
1356
1357SC/01 Use a glob alias rather than an array ref in eximstats generated
1358 parser. This improves both readability and performance.
1359
1360SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1361 Don't display local sender or destination tables in eximstats unless
1362 there is data to show.
1363 Added average volumes into the eximstats top table text output.
1364
1365SC/03 Collect data on the number of addresses (recipients) as well
1366 as the number of messages in eximstats.
1367
2b965a65
TF
1368TF/01 Correct an error in the documentation for the redirect router. Exim
1369 does (usually) call initgroups() when daemonizing.
478be7b0 1370
45b91596
PH
1371TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1372 with consistent privilege compared to when running as a daemon.
478be7b0 1373
c59f5781
TF
1374TF/03 Note in the spec that $authenticated_id is not set for local
1375 submissions from trusted users.
1376
90fc3069
TF
1377TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1378 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1379
6083aca0
TF
1380TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1381 by adding some example configuration directives to the default
1382 configuration file. A little bit of work is required to uncomment the
1383 directives and define how usernames and passwords are checked, but
1384 there is now a framework to start from.
1385
765b530f
PH
1386PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1387 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1388 without this. I don't know how relevant this is to other LDAP libraries.
1389
4e167a8c
PH
1390PH/02 Add the verb name to the "unknown ACL verb" error.
1391
4608d683
PH
1392PH/03 Magnus Holmgren's patch for filter_prepend_home.
1393
b8dc3e4a
PH
1394PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1395
5418e93b
PH
1396PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1397 directory not expanded when it should be if an expanded home directory
1398 was set for the address (which is overridden by the transport).
1399
b4a9bda2
PH
1400PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1401 libradius.
1402
45b91596
PH
1403PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1404 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1405 because it is too late at that time, and has no effect.
1406
5547e2c5
PH
1407PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1408 security issue with \' (bugzilla #107). I could not use the
1409 PQescapeStringConn() function, because it needs a PGconn value as one of
1410 its arguments.
1411
dbcef0ea
PH
1412PH/08 When testing addresses using -bt, indicate those final addresses that
1413 are duplicates that would not cause an additional delivery. At least one
1414 person was confused, thinking that -bt output corresponded to deliveries.
1415 (Suppressing duplicates isn't a good idea as you lose the information
1416 about possibly different redirections that led to the duplicates.)
1417
25257489
PH
1418PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1419 systems where poll() doesn't work, in particular OS X.
1420
c816d124
PH
1421PH/10 Added more information to debugging output for retry time not reached.
1422
a9ccd69a
PH
1423PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1424 operations in malware.c.
1425
75fa1910
PH
1426PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1427 signatures.
1428
a7d7aa58
PH
1429PH/13 If write_rejectlog was set false when logging was sent to syslog with
1430 syslog_duplication set false, log lines that would normally be written
1431 both the the main log and to the reject log were not written to syslog at
1432 all.
1433
42119b09
PH
1434PH/14 In the default configuration, change the use of "message" in ACL warn
1435 statements to "add_header".
1436
41609df5
PH
1437PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1438 not followed by a command (e.g. "seen endif").
1439
a5bd321b
PH
1440PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1441 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1442 latter.
1443
e85a7ad5 1444PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1445 so that it is now:
1446
e85a7ad5
PH
1447 ${if or { \
1448 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1449 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1450 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1451 }{no}{yes}}
1452
e85a7ad5
PH
1453 The Auto-Submitted: and various List- headers are standardised, whereas I
1454 don't think Precedence: ever was.
5dff5817 1455
d8fe1c03
PH
1456PH/18 Refactored debugging code in route_finduser() to show more information,
1457 in particular, the error code if getpwnam() issues one.
1458
16282d2b
PH
1459PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1460 This is apparently needed in addition to the PH/07 change above to avoid
1461 any possible encoding problems.
1462
35d40a98
PH
1463PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1464 but not after initializing Perl.
1465
034d99ab
PH
1466PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1467 output them only if debugging. By default they are written stderr,
1468 apparently, which is not desirable.
1469
6ec97b1b
PH
1470PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1471 queries.
1472
e22ca4ac
JJ
1473JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1474 --not options
1475
1476JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1477
33d73e3b
PH
1478PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1479 authenticated or an ident call has been made. Suppress the default
1480 values for $authenticated_id and $authenticated_sender (but permit -oMai
1481 and -oMas) when testing with -bh.
1482
9ecb03f3
PH
1483PH/24 Re-jigged the order of the tests in the default configuration so that the
1484 tests for valid domains and recipients precede the DNS black list and CSA
1485 tests, on the grounds that those ones are more expensive.
1486
084efe8d
PH
1487PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1488 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1489 This bug exists in every version of Exim that I still have, right back to
1490 0.12.
1491
366fc9f0
PH
1492PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1493 However, an attempt to turn on case-sensitivity in a regex key by
1494 including (?-i) didn't work because the subject string was already
1495 lowercased, and the effects were non-intuitive. It turns out that a
1496 one-line patch can be used to allow (?-i) to work as expected.
1497
c59f5781 1498
c887c79e
TF
1499Exim version 4.62
1500-----------------
1501
1502TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1503 other effects) broke the use of negated acl sub-conditions.
1504
1cce3af8
PH
1505PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1506 patch).
1507
afb3eaaf
PH
1508PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1509 "Deny" causes Exim to reject the incoming connection with a 554 error.
1510 Unfortunately, if there is a major crisis, such as a disk failure,
1511 tcp-wrappers gives "deny", whereas what one would like would be some
1512 kind of temporary error. A kludge has been added to help with this.
1513 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1514 554 error is used if errno is still zero or contains ENOENT (which occurs
1515 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1516 451 error is used.
1517
e173618b
PH
1518PH/03 Add -lutil to the default FreeBSD LIBS setting.
1519
dd16e114
PH
1520PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1521 errors. Otherwise a message that provokes a temporary error (when other
1522 messages do not) can cause a whole host to time out.
1523
f7fd3850
PH
1524PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1525 addresses were routed directly to files or pipes from a redirect router.
1526 File deliveries just didn't batch; pipe deliveries might have suffered
1527 odd errors.
1528
d87df92c
PH
1529PH/06 A failure to get a lock for a hints database would erroneously always say
1530 "Failed to get write lock", even when it was really a read lock.
1531
7e9f683d
PH
1532PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1533 of 0600. This has been changed to use the value of the lockfile_mode
1534 option (which defaults to 0600).
1535
bfad5236
PH
1536PH/08 Applied small patch from the Sieve maintainer.
1537
01c490df
PH
1538PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1539 folder from quota calculations, a direct delivery into this folder messed
1540 up the contents of the maildirsize file. This was because the regex was
1541 used only to exclude .Trash (or whatever) when the size of the mailbox
1542 was calculated. There was no check that a delivery was happening into an
1543 excluded directory. This bug has been fixed by ignoring all quota
1544 processing for deliveries into excluded directories.
1545
d6629cdc
PH
1546PH/10 Added the maildirfolder_create_regex option to appendfile.
1547
1cce3af8 1548
214e2000
PH
1549Exim version 4.61
1550-----------------
1551
1552PH/01 The code for finding all the local interface addresses on a FreeBSD
1553 system running IPv6 was broken. This may well have applied to all BSD
1554 systems, as well as to others that have similar system calls. The broken
1555 code found IPv4 interfaces correctly, but gave incorrect values for the
1556 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1557 that it would not match correctly against @[] and not recognize the IPv6
1558 addresses as local.
1559
f9daeae0
PH
1560PH/02 The ipliteral router was not recognizing addresses of the form user@
1561 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1562
7e66e54d
PH
1563PH/03 Added disable_ipv6.
1564
c8ea1597
PH
1565PH/04 Changed $reply_address to use the raw form of the headers instead of the
1566 decoded form, because it is most often used to construct To: headers
1567 lines in autoreplies, and the decoded form may well be syntactically
1568 invalid. However, $reply_address has leading white space removed, and all
1569 newlines turned into spaces so that the autoreply transport does not
1570 grumble.
1571
911f6fde
PH
1572PH/05 If group was specified without a user on a router, and no group or user
1573 was specified on a transport, the group from the router was ignored.
1574
47ca6d6c
PH
1575PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1576 for visible compile-time settings that can be used to change these
1577 numbers, for those that want even more. Backwards compatibility with old
1578 spool files has been maintained. However, going back to a previous Exim
1579 release will lost any variables that are in spool files.
1580
ed0e9820
PH
1581PH/07 Two small changes when running in the test harness: increase delay when
1582 passing a TCP/IP connection to a new process, in case the original
1583 process has to generate a bounce, and remove special handling of
1584 127.0.0.2 (sic), which is no longer necessary.
1585
eff37e47
PH
1586PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1587 be the same on different OS.
1588
1921d2ea
PH
1589PH/09 Moved a debug statement in filter processing to avoid a race problem when
1590 testing.
1591
b3f69ca8
JJ
1592JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1593 whether --show-vars was specified or not
1594
1595JJ/02 exipick: Added support for new ACL variable spool format introduced
1596 in 4.61-PH/06
1597
424a1c63
PH
1598PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1599 syntactically invalid From: or Reply-to: line, and a filter used this to
1600 generate an autoreply, and therefore failed to obtain an address for the
1601 autoreply, Exim could try to deliver to a non-existent relative file
1602 name, causing unrelated and misleading errors. What now happens is that
1603 it logs this as a hard delivery error, but does not attempt to create a
1604 bounce message.
1605
7a100415
PH
1606PH/11 The exinext utility has a -C option for testing purposes, but although
1607 the given file was scanned by exinext itself; it wasn't being passed on
1608 when Exim was called.
1609
19b9dc85
PH
1610PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1611 an end-of-file indication when reading a command response.
1612
309bd837
PH
1613PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1614 compiled. In many other places in Exim, IPv6 addresses are always
1615 recognized, so I have changed this. It also means that IPv4 domain
1616 literals of the form [IPV4:n.n.n.n] are now always recognized.
1617
59e82a2a
PH
1618PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1619 used if the router is not running as root, for example, when verifying at
1620 ACL time, or when using -bh. The debugging output from this situation was
1621 non-existent - all you got was a failure to exec. I have made two
1622 changes:
1623
1624 (a) Failures to set uid/gid, the current directory, or a process leader
1625 in a subprocess such as that created by queryprogram now generate
1626 suitable debugging ouput when -d is set.
1627
1628 (b) The queryprogram router detects when it is not running as root,
1629 outputs suitable debugging information if -d is set, and then runs
1630 the subprocess without attempting to change uid/gid.
1631
9edc04ce
PH
1632PH/15 Minor change to Makefile for building test_host (undocumented testing
1633 feature).
1634
1349e1e5
PH
1635PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1636 additional section of a DNS packet that returns MX or SRV records.
1637 Instead, it always explicitly searches for A/AAAA records. This avoids
1638 major problems that occur when a DNS server includes only records of one
1639 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1640 fixed another bug: if SRV records were looked up and the corresponding
1641 address records were *not* found in the additional section, the port
1642 values from the SRV records were lost.
1643
ea49d0e1
PH
1644PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1645 using the correct key (the original address) when searching the retry
1646 rules in order to find which one to use for generating the retry hint.
1647
064a94c9
PH
1648PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1649 adding the default one. Similarly, if it contains a Reply-To: header, the
1650 errors_reply_to option, if set, is not used.
1651
727071f8
PH
1652PH/19 When calculating a retry time, Exim used to measure the "time since
1653 failure" by looking at the "first failed" field in the retry record. Now
1654 it does not use this if it is later than than the arrival time of the
1655 message. Instead it uses the arrival time. This makes for better
1656 behaviour in cases where some deliveries succeed, thus re-setting the
1657 "first failed" field. An example is a quota failure for a huge message
1658 when small messages continue to be delivered. Without this change, the
1659 "time since failure" will always be short, possible causing more frequent
1660 delivery attempts for the huge message than are intended.
dd16e114 1661 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1662
f78eb7c6
PH
1663PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1664 $1, $2, $3) because the numerical variables can be reset during some
1665 expansion items (e.g. "match"), thereby losing the authentication data.
1666
21c28500
PH
1667PH/21 Make -bV show the size of off_t variables so that the test suite can
1668 decide whether to run tests for quotas > 2G.
1669
1670PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1671 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1672 filecount value is greater than 2G or if a quota value is greater than 2G
1673 on a system where the size of off_t is not greater than 4, a panic error
1674 is given.
1675
1688f43b
PH
1676PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1677 never match. The debug and -bh output now contains an explicit error
1678 message indicating a malformed IPv4 address or mask.
1679
1680PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1681 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1682 PH/23 above applies.
1683
9675b384
PH
1684PH/25 Do not write to syslog when running in the test harness. The only
1685 occasion when this arises is a failure to open the main or panic logs
1686 (for which there is an explicit test).
1687
6a3f1455
PH
1688PH/26 Added the /no_tell option to "control=freeze".
1689
dac79d3e
PH
1690PH/27 If a host name lookup failed very early in a connection, for example, if
1691 the IP address matched host_lookup and the reverse lookup yielded a name
1692 that did not have a forward lookup, an error message of the form "no IP
1693 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1694 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1695
5977a0b3
PH
1696PH/28 An enabling patch from MH: add new function child_open_exim2() which
1697 allows the sender and the authenticated sender to be set when
1698 submitting a message from within Exim. Since child_open_exim() is
1699 documented for local_scan(), the new function should be too.
1700
c91535f3
PH
1701PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1702 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1703 results in an empty string is now treated as unset.
1704
0d46a8c8
PH
1705PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1706
278c6e6c
PH
1707PH/31 Added sender_verify_fail logging option.
1708
2cbb4081
PH
1709PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1710 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1711 tidied the source and removed it altogether.
1712
3eef829e
PH
1713PH/33 When a queue run was abandoned because the load average was too high, a
1714 log line was always written; now it is written only if the queue_run log
1715 selector is set. In addition, the log line for abandonment now contains
1716 information about the queue run such as the pid. This is always present
1717 in "start" and "stop" lines but was omitted from the "abandon" line.
1718
1ab95fa6
PH
1719PH/34 Omit spaces between a header name and the colon in the error message that
1720 is given when verify = headers_syntax fails (if there are lots of them,
1721 the message gets confusing).
1722
230205fc
PH
1723PH/35 Change the default for dns_check_names_pattern to allow slashes within
1724 names, as there are now some PTR records that contain slashes. This check
1725 is only to protect against broken name servers that fall over on strange
1726 characters, so the fact that it applies to all lookups doesn't matter.
1727
75e0e026
PH
1728PH/36 Now that the new test suite is complete, we can remove some of the
1729 special code in Exim that was needed for the old test suite. For example,
1730 sorting DNS records because real resolvers return them in an arbitrary
1731 order. The new test suite's fake resolver always returns records in the
1732 same order.
1733
1734PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1735 bounces) except when queue_only is set, to avoid logging races between
1736 the different processes.
1737
145396a6
PH
1738PH/38 Panic-die if .include specifies a non-absolute path.
1739
3cd34f13
PH
1740PH/39 A tweak to the "H" retry rule from its user.
1741
11121d3d
JJ
1742JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1743 a label. They prevented compilation on older perls.
1744
1745JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1746 a warning to be raised on newish perls.
1747
1748JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1749 on queue. Changes to match documented behaviour of showing count of
1750 messages matching specified criteria.
1751
8def5aaf
PH
1752PH/40 Changed the default ident timeout from 30s to 5s.
1753
929ba01c
PH
1754PH/41 Added support for the use of login_cap features, on those BSD systems
1755 that have them, for controlling the resources used by pipe deliveries.
1756
2632889e
PH
1757PH/42 The content-scanning code uses fopen() to create files in which to put
1758 message data. Previously it was not paying any attention to the mode of
1759 the files. Exim runs with umask(0) because the rest of the code creates
1760 files with open(), and sets the required mode explicitly. Thus, these
1761 files were ending up world-writeable. This was not a big issue, because,
1762 being within the spool directory, they were not world-accessible. I have
1763 created a function called modefopen, which takes an additional mode
1764 argument. It sets umask(777), creates the file, chmods it to the required
1765 mode, then resets the umask. All the relevant calls to fopen() in the
1766 content scanning code have been changed to use this function.
1767
944a9c55
PH
1768PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1769 to 24 hours. This avoids potential overflow problems when processing G
1770 and H retry rules. I suspect nobody ever tinkers with this value.
1771
4a23603b
PH
1772PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1773
4730f942
PH
1774PH/45 When the plaintext authenticator is running as a client, the server's
1775 challenges are checked to ensure they are valid base64 strings. By
1776 default, the authentication attempt is cancelled if an invalid string is
1777 received. Setting client_ignore_invalid_base64 true ignores these errors.
1778 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1779 they are received. Thus, the responses can be made to depend on the
1780 challenges. If an invalid string is ignored, an empty string is placed in
1781 the variable.
1782
30dba1e6
PH
1783PH/46 Messages that are created by the autoreply transport now contains a
1784 References: header, in accordance with RFCs 2822 and 3834.
1785
382afc6b
PH
1786PH/47 Added authenticated_sender_force to the smtp transport.
1787
a86229cf
PH
1788PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1789
50c99ba6
PH
1790PH/49 Installed latest patch from the Sieve maintainer.
1791
d35e429d
PH
1792PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1793 was also set, the appendfile transport was unnecessarily scanning a
1794 directory of message files (e.g. for maildir delivery) to find the count
1795 of files (along with the size), even though it did not need this
1796 information. It now does the scan only if it needs to find either the
1797 size of the count of files.
1798
f90d018c
PH
1799PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1800
75def545
PH
1801PH/52 Two bugs concerned with error handling when the smtp transport is
1802 used in LMTP mode:
1803
1804 (i) Exim was not creating retry information for temporary errors given
1805 for individual recipients after the DATA command when the smtp transport
1806 was used in LMTP mode. This meant that they could be retried too
1807 frequently, and not timed out correctly.
1808
1809 (ii) Exim was setting the flag that allows error details to be returned
1810 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1811 recipients that were returned after the DATA command.
1812
1813PH/53 This is related to PH/52, but is more general: for any failing address,
1814 when detailed error information was permitted to be returned to the
1815 sender, but the error was temporary, then after the final timeout, only
1816 "retry timeout exceeded" was returned. Now it returns the full error as
1817 well as "retry timeout exceeded".
1818
c46782ef
PH
1819PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1820 do this, and (what is worse) MTAs that accept it.
1821
71fafd95
PH
1822PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1823 will now be deprecated.
1824
2c5db4fd
PH
1825PH/56 New os.c-cygwin from the Cygwin maintainer.
1826
9cf6b11a
JJ
1827JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1828 formats (previously only available in exim formats via -bpr, -bpru,
1829 and -bpra. Now also available in native and exiqgrep formats)
1830
1831JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1832 with very large, slow to parse queues
1833
1834JJ/08 exipick: added ! as generic prefix to negate any criteria format
1835
1836JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1837
898d150f
PH
1838PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1839 responses to authentication challenges, though it was showing the
1840 challenges; (ii) I've removed the CR characters from the debug output for
1841 SMTP output lines.
1842
46218253
PH
1843PH/58 Allow for the insertion of a newline as well as a space when a string
1844 is turned into more than one encoded-word during RFC 2047 encoding. The
1845 Sieve code now uses this.
1846
e97957bc
PH
1847PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1848 data_4xx, lost_connection, tls_required.
1849
81e509d7
PH
1850PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1851 message was being sent as an SMTP response.
1852
3d240ff7
PH
1853PH/61 Add -l and -k options to exicyclog.
1854
b37c4101
PH
1855PH/62 When verifying, if an address was redirected to one new address, so that
1856 verification continued, and the new address failed or deferred after
1857 having set something in $address_data, the value of $address_data was not
1858 passed back to the ACL. This was different to the case when no
1859 redirection occurred. The value is now passed back in both cases.
1860
79378e0f
PH
1861PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1862 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1863 use login_cap.h, so on its own it isn't the distinguishing feature. The
1864 new name refers directly to the setclassresources() function.
1865
e49c7bb4
PH
1866PH/65 Added configuration files for NetBSD3.
1867
d114ec46
PH
1868PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1869
f3d7df6c
PH
1870PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1871 is preferred over IPv4.
1872
715ab376
PH
1873PH/68 The bounce_return_message and bounce_return_body options were not being
1874 honoured for bounces generated during the reception of non-SMTP messages.
1875 In particular, this applied to messages rejected by the ACL. This bug has
1876 been fixed. However, if bounce_return_message is true and bounce_return_
1877 body is false, the headers that are returned for a non-SMTP message
1878 include only those that have been read before the error was detected.
1879 (In the case of an ACL rejection, they have all been read.)
1880
6b31b150
PH
1881PH/69 The HTML version of the specification is now built in a directory called
1882 spec_html instead of spec.html, because the latter looks like a path with
1883 a MIME-type, and this confuses some software.
1884
1885PH/70 Catch two compiler warnings in sieve.c.
1886
d515a917
PH
1887PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1888 function verify_get_ident() calls ip_connect() to connect a socket, but
1889 if the "connect()" function timed out, ip_connect() used to close the
1890 socket. However, verify_get_ident() also closes the socket later, and in
1891 between Exim writes to the log, which may get opened at this point. When
1892 the socket was closed in ip_connect(), the log could get the same file
1893 descriptor number as the socket. This naturally causes chaos. The fix is
1894 not to close the socket in ip_connect(); the socket should be closed by
1895 the function that creates it. There was only one place in the code where
1896 this was missing, in the iplookup router, which I don't think anybody now
1897 uses, but I've fixed it anyway.
1898
9b8fadde
PH
1899PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1900 well as to direct DNS lookups. Otherwise the handling of names in host
1901 lists is inconsistent and therefore confusing.
1902
214e2000 1903
5de37277
PH
1904Exim version 4.60
1905-----------------
1906
cc38ddbf
PH
1907PH/01 Two changes to the default runtime configuration:
1908
1909 (1) Move the checks for relay_from_hosts and authenticated clients from
1910 after to before the (commented out) DNS black list checks.
1911
1912 (2) Add control=submission to the relay_from_hosts and authenticated
1913 clients checks, on the grounds that messages accepted by these
1914 statements are most likely to be submissions.
5de37277 1915
72fdd6ae
PH
1916PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1917
1918 (1) Generate an error if the third argument for the ${prvs expansion is
1919 not a single digit.
1920
1921 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1922 string.
1923
1924 (3) Reset the variables that are obtained from the first argument of
1925 ${prvscheck and used in the second argument before leaving the code,
1926 because their memory is reclaimed, so using them afterwards may do
1927 silly things.
1928
1929 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1930 one (it's much easier than Tom thought :-).
1931
1932 (5) Because of (4), we can now allow for the use of $prvscheck_result
1933 inside the third argument.
cb9328de 1934
cb741023
PH
1935PH/03 For some reason, the default setting of PATH when running a command from
1936 a pipe transport was just "/usr/bin". I have changed it to
1937 "/bin:/usr/bin".
1938
f174f16e
PH
1939PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1940 anything to be listed in the output from -bV.
b2f5a032 1941
c25242d7
PH
1942PH/05 When a filter generated an autoreply, the entire To: header line was
1943 quoted in the delivery log line, like this:
1944
1945 => >A.N.Other <ano@some.domain> <original@ddress> ...
1946
1947 This has been changed so that it extracts the operative address. There
1948 may be more than one such address. If so, they are comma-separated, like
1949 this:
1950
1951 => >ano@some.domain,ona@other.domain <original@ddress> ...
1952
82c19f95
PH
1953PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1954 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1955 not being looked up in the rDNS to get a host name, Exim was showing the
1956 IP address twice in Received: lines, even though the IP addresses were
1957 identical. For example:
1958
1959 Received: from [1.2.3.4] (helo=[1.2.3.4])
1960
1961 However, if the real host name was known, it was omitting the HELO data
1962 if it matched the actual IP address. This has been tidied up so that it
1963 doesn't show the same IP address twice.
1964
d7ffbc12
PH
1965PH/07 When both +timestamp and +memory debugging was on, the value given by
1966 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1967 called by the debug printing, thereby overwriting the timestamp buffer.
1968 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1969
9f526266
PH
1970PH/08 When the original message was included in an autoreply transport, it
1971 always said "this is a copy of the message, including all the headers",
1972 even if body_only or headers_only was set. It now gives an appropriate
1973 message.
1974
87fcc8b9
PH
1975PH/09 Applied a patch from the Sieve maintainer which:
1976
1977 o fixes some comments
1978 o adds the (disabled) notify extension core
1979 o adds some debug output for the result of if/elsif tests
1980 o points to the current vacation draft in the documentation
1981 and documents the missing references header update
1982
1983 and most important:
1984
1985 o fixes a bug in processing the envelope test (when testing
1986 multiple envelope elements, the last element determinted the
1987 result)
1988
456682f5
PH
1989PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1990 Electronic Mail") by including:
1991
1992 Auto-submitted: auto-generated
1993
1994 in the messages that it generates (bounce messages and others, such as
1995 warnings). In the case of bounce messages for non-SMTP mesages, there was
1996 also a typo: it was using "Auto_submitted" (underscore instead of
1997 hyphen). Since every message generated by Exim is necessarily in response
1998 to another message, thes have all been changed to:
1999
2000 Auto-Submitted: auto-replied
2001
2002 in accordance with these statements in the RFC:
2003
2004 The auto-replied keyword:
2005
2006 - SHOULD be used on messages sent in direct response to another
2007 message by an automatic process,
2008
2009 - MUST NOT be used on manually-generated messages,
2010
2011 - MAY be used on Delivery Status Notifications (DSNs) and Message
2012 Disposition Notifications (MDNs),
2013
2014 - MUST NOT be used on messages generated by automatic or periodic
2015 processes, except for messages which are automatic responses to
2016 other messages.
2017
3e46c1aa
PH
2018PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
2019 to the default Received: header definition.
456682f5 2020
49826d12
PH
2021PH/12 Added log selector acl_warn_skipped (default on).
2022
eba0c039
PH
2023PH/13 After a successful wildlsearch lookup, discard the values of numeric
2024 variables because (a) they are in the wrong storage pool and (b) even if
2025 they were copied, it wouldn't work properly because of the caching.
2026
a0d6ba8a
PH
2027PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
2028 checking when decoding. Apparently there are clients that generate
2029 overlong encoded strings. Why am I not surprised?
2030
f0917727
PH
2031PH/15 If the first argument of "${if match_address" was not empty, but did not
2032 contain an "@" character, Exim crashed. Now it writes a panic log message
2033 and treats the condition as false.
2034
096fee00
PH
2035PH/16 In autoreply, treat an empty string for "once" the same as unset.
2036
024bd3c2
PH
2037PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2038 extension "envelope-auth". The code is finished and in agreement with
2039 other implementations, but there is no documentation so far and in fact,
2040 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2041 not changing the active code.
2042
2043 Print executed "if" and "elsif" statements when debugging is used. This
2044 helps a great deal to understand what a filter does.
2045
2046 Document more things not specified clearly in RFC3028. I had all this
2047 sorted out, when out of a sudden new issues came to my mind. Oops."
2048
df199fec
PH
2049PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2050 (Bugzilla #53).
2051
d27f1df3
PH
2052PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2053 canonical form (as documented). However, after a host name lookup from
2054 the IP address, check_host() was doing a simple string comparison with
2055 addresses acquired from the DNS when checking that the found name did
2056 have the original IP as one of its addresses. Since any found IPv6
2057 addresses are likely to be in abbreviated form, the comparison could
2058 fail. Luckily, there already exists a function for doing the comparison
2059 by converting both addresses to binary, so now that is used instead of
2060 the text comparison.
2061
96776534
PH
2062PH/20 There was another similar case to PH/19, when a complete host name was
2063 given in a host list; looking up its IP address could give an abbreviated
2064 form, whereas the current host's name might or might not be abbreviated.
2065 The same fix has been applied.
2066
5de37277 2067
9a799bc0
PH
2068Exim version 4.54
2069-----------------
2070
2071PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2072 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2073 It now does.
2074
99a4b039
PH
2075PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2076 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2077
2078PH/03 Typo: missing ".o" in src/pcre/Makefile.
2079
4b233853
PH
2080PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2081 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2082 Also, for "Auto-Submitted", treat anything other than "no" as
2083 non-personal, in accordance with RFC 3834. (Previously it treated
2084 anything starting "auto-" as non-personal.)
2085
8857ccfd
PH
2086TF/01 The control=submission/name=... option had a problem with syntax
2087 errors if the name included a slash character. The /name= option
2088 now slurps the rest of the string, so it can include any characters
2089 but it must come last in the list of options (after /sender_retain
2090 or /domain=).
2091
433a2980
PH
2092PH/05 Some modifications to the interface to the fake nameserver for the new
2093 testing suite.
2094
3e46c1aa 2095
9a799bc0 2096
e3a311ba
TK
2097Exim version 4.53
2098-----------------
2099
2100TK/01 Added the "success_on_redirect" address verification option. See
2101 NewStuff for rationale and an example.
2102
13b685f9
PH
2103PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2104
395ff96d
PH
2105PH/02 Patch to exigrep to allow it to work on syslog lines.
2106
5b68f6e4
PH
2107PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2108 fread() to skip over the body file's header line, because in Cygwin the
2109 header line is locked and is inaccessible.
2110
1ab52c69
PH
2111PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2112 co-exist for some time) to make it clear that it is the Exim ID that is
2113 referenced, not the Message-ID: header line.
2114
b07e6aa3
PH
2115PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2116 string_format() function, because snprintf() does not exist on all
2117 operating systems.
2118
254e032f
PH
2119PH/06 The use of forbid_filter_existstest now also locks out the use of the
2120 ${stat: expansion item.
2121
3af76a81
PH
2122PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2123 protocol synchronization error", to keep the pedants happy.
2124
2548ba04
PH
2125PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2126 well as for IRIX systems, when gcc is being used. See the host.c source
2127 file for comments.
2128
b6c6011d
PH
2129PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2130
cf39cf57
PH
2131PH/10 Named domain lists were not working if used in a queue_smtp_domains
2132 setting.
2133
f1513293
PH
2134PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2135 transport and to the smtp transport in LMTP mode.
2136
727549a4
PH
2137TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2138
af46795e
PH
2139PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2140 run a filter in a subprocess. This could lead to confusion in subsequent
2141 lookups in the parent process. There should also be a search_tidyup() at
2142 the end of the subprocess.
2143
d7b47fd0
PH
2144PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2145 only if the host matched helo_try_verify_hosts, which caused the
2146 verification to occur when the EHLO/HELO command was issued. The ACL just
2147 tested the remembered result. Now, if a previous verification attempt has
2148 not happened, "verify = helo" does it there and then.
2149
ee744174
JJ
2150JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2151
b582ab87
PH
2152TK/03 Fix log output including CR from clamd.
2153
41a13e0a
PH
2154PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2155 exist provoked a memory error which could cause a segfault.
2156
f625cc5a
PH
2157PH/15 Installed PCRE 6.2
2158
2159PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2160
21f7af35
PH
2161PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2162 of the problem. Specifically, suggested +O2 rather than +O1 for the
2163 HP-UX compiler.
2164
31480e42
PH
2165PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2166
2d280592
PH
2167PH/20 If a delivery was routed to a non-standard port by means of an SRV
2168 record, the port was not correctly logged when the outgoing_port log
2169 selector was set (it logged the transort's default port).
2170
7cd1141b
PH
2171PH/21 Added support for host-specific ports to manualroute, queryprogram,
2172 fallback_hosts, and "hosts" in the smtp transport.
2173
2174PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2175 host errors such as "Connection refused".
2176
750af86e
PH
2177PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2178 authentication with radiusclient 0.4.9:
2179
2180 - Error returned from rc_read_config was caught wrongly
2181 - Username/password not passed on to radius server due to wrong length.
2182
2183 The presumption is that some radiusclient API changes for 4.51/PH/17
2184 were not taken care of correctly. The code is still untested by me (my
2185 Linux distribution still has 0.3.2 of radiusclient), but it was
2186 contributed by a Radius user.
2187
2188PH/24 When doing a callout, the value of $domain wasn't set correctly when
2189 expanding the "port" option of the smtp transport.
2190
4304270b
TK
2191TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2192 while reading a MIME header. Thanks to Tom Hughes for a patch.
2193
750af86e
PH
2194PH/24 Include config.h inside local_scan.h so that configuration settings are
2195 available.
2196
64ffc24f
PH
2197PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2198 that in an ACL for RCPT (for example), you can examine exactly what was
2199 received.
2200
5dd9625b
PH
2201PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2202 commands, but it was not correctly comparing the address with the actual
2203 client host address. Thus, it would show the EHLO address in Received:
2204 header lines when this was not necessary.
2205
5591031b
PH
2206PH/27 Added the % operator to ${eval:}.
2207
ba18e66a
PH
2208PH/28 Exim tries to create and chdir to its spool directory when it starts;
2209 it should be ignoring failures (because with -C, for example, it has lost
2210 privilege). It wasn't ignoring creation failures other than "already
2211 exists".
2212
9cec981f
PH
2213PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2214 -bV or -d is used.
2215
aa2b5c79
PH
2216PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2217 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2218 too many continuations, the temporary file was not being removed, and the
2219 return code was incorrect.
aa2b5c79 2220
48a53b7f
PH
2221PH/31 Missing "BOOL" in function definition in filtertest.c.
2222
1c59d63b
PH
2223PH/32 Applied Sieve patches from the maintainer.
2224
671012da
TK
2225TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2226
1509d3a8
PH
2227PH/33 Added "verify = not_blind".
2228
2229PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2230 Local/Makefile (with some defaults set). These are used in built scripts
2231 such as exicyclog, but they have never been used in the exim_install
2232 script (though there are many overriding facilities there). I have
2233 arranged that the exim_install script now takes note of these two
2234 settings.
2235
2236PH/35 Installed configuration files for Dragonfly.
2237
2fe1a124
PH
2238PH/36 When a locally submitted message by a trusted user did not contain a
2239 From: header, and the sender address was obtained from -f or from an SMTP
2240 MAIL command, and the trusted user did not use -F to supply a sender
2241 name, $originator_name was incorrectly used when constructing a From:
2242 header. Furthermore, $originator_name was used for submission mode
2243 messages from external hosts without From: headers in a similar way,
2244 which is clearly wrong.
2245
8800895a
PH
2246PH/37 Added control=suppress_local_fixups.
2247
ccfdb010
PH
2248PH/38 When log_selector = +received_sender was set, and the addition of the
2249 sender made the log line's construction buffer exactly full, or one byte
2250 less than full, an overflow happened when the terminating "\n" was
2251 subsequently added.
2252
1130bfb0
PH
2253PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2254 when the result of a list match is failure because a DNS lookup failed.
2255
ebcb507f
PH
2256PH/40 RM_COMMAND is now used in the building process.
2257
c35e155c
PH
2258PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2259 the "build-* directories that it finds.
2260
95d1f782
PH
2261PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2262 address in a domain literal was a prefix of an interface address.
2263
fd6de02e
PH
2264PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2265 when verifying a sender address, unless rewrite_headers is false.
2266
58de37c5
PH
2267PH/44 Wrote a long comment about why errors_to addresses are verified as
2268 recipients, not senders.
2269
261cf466
TF
2270TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2271 the ratelimit ACL was added.
2272
3ee512ff
PH
2273PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2274
e08c430f
PH
2275PH/46 Added extra information about PostgreSQL errors to the error string.
2276
bef5a11f
PH
2277PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2278 avoiding the need to install special zones in a real server. This is
2279 backwards compatible; if it can't find the fake resolver, it drops back.
2280 Thus, both old and new test suites can be run.
2281
7546de58
TF
2282TF/02 Added util/ratelimit.pl
2283
e5d5a95f
TF
2284TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2285 clock is set back in time.
2286
2e88a017
TF
2287TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2288 Candler <B.Candler@pobox.com>.
2289
a5f65aa4
TF
2290TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2291 OK for addresses that are the result of redirections.
2292
e7726cbf
PH
2293PH/48 A number of further additions for the benefit of the new test suite,
2294 including a fake gethostbyname() that interfaces to the fake DNS resolver
2295 (see PH/47 above).
2296
a7fdad5b
TF
2297TF/06 The fix for widen_domains has also been applied to qualify_single and
2298 search_parents which are the other dnslookup options that can cause
2299 header rewrites.
2300
6af56900
PH
2301PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2302 type ("H").
2303
0925ede6
PH
2304PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2305
66afa403
TF
2306TF/07 Exim produced the error message "an SRV record indicated no SMTP
2307 service" if it encountered an MX record with an empty target hostname.
2308 The message is now "an MX or SRV record indicated no SMTP service".
2309
0154e85a
TF
2310TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2311 if the DNS of the sending site is misconfigured. This is quite a
2312 common situation. This change restores the behaviour of treating a
2313 helo verification defer as a failure.
2314
16f12c76
PH
2315PH/51 If self=fail was set on a router, the bounce message did not include the
2316 actual error message.
2317
bbe902f0 2318
e5a9dba6
PH
2319Exim version 4.52
2320-----------------
2321
2322TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2323
22c3b60b
PH
2324PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2325 command itself ended in error, the underlying message about the transport
2326 filter timeout was being overwritten with the pipe command error. Now the
2327 underlying error message should be appended to the second error message.
2328
06a9b4b5
PH
2329TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2330
c1ac6996
PH
2331PH/02 Reduce the amount of output that "make" produces by default. Full output
2332 can still be requested.
2333
9c7a242c
PH
2334PH/03 The warning log line about a condition test deferring for a "warn" verb
2335 was being output only once per connection, rather than after each
2336 occurrence (because it was using the same function as for successful
2337 "warn" verbs). This seems wrong, so I have changed it.
2338
87ba3f5f
PH
2339TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2340 it should not have, which might have caused a crash in the right
2341 circumstances, but probably never did.
2342
2343PH/04 Installed a modified version of Tony Finch's patch to make submission
2344 mode fix the return path as well as the Sender: header line, and to
2345 add a /name= option so that you can make the user's friendly name appear
2346 in the header line.
2347
29aba418
TF
2348TF/03 Added the control = fakedefer ACL modifier.
2349
fe0dab11
TF
2350TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2351 Mark Lowes for thorough testing.
870f6ba8 2352
11d337a4
TK
2353TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2354
2355TK/03 Merged latest SRS patch from Miles Wilton.
2356
415c8f3b
PH
2357PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2358 with the definition in sysexits.h (which is #included earlier).
2359 Fortunately, Exim does not actually use EX_OK. The code used to try to
2360 preserve the sysexits.h value, by assumimg that macro definitions were
2361 scanned for macro replacements. I have been disabused of this notion,
2362 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2363
958541e9
PH
2364PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2365 in the smtp transport. When a block could not be written in a single
2366 write() function, the timeout was being re-applied to each part-write.
2367 This seems wrong - if the receiver was accepting one byte at a time it
2368 would take for ever. The timeout is now adjusted when this happens. It
2369 doesn't have to be particularly precise.
2370
c206415f
TK
2371TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2372 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2373
2a4be8f9
PH
2374PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2375 without a domain if the check to <postmaster@domain> fails.
2376
1cba11c5
SC
2377SC/01 Eximstats: added -xls and the ability to specify output files
2378 (patch written by Frank Heydlauf).
2379
2380SC/02 Eximstats: use FileHandles for outputing results.
2381
2382SC/03 Eximstats: allow any combination of xls, txt, and html output.
2383
2384SC/04 Eximstats: fixed display of large numbers with -nvr option
2385
2386SC/05 Eximstats: fixed merging of reports with empty tables.
2387
2388SC/06 Eximstats: added the -include_original_destination flag
2389
2390SC/07 Eximstats: removed tabs and trailing whitespace.
2391
1005d00e
TK
2392TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2393
2394TK/06 MBOX spool code: Add real "From " MBOX separator line
2395 so the .eml file is really in mbox format (even though
2396 most programs do not really care). Patch from Alex Miller.
2397
2398TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2399 The latter is generated from $received_to and is only set if the
2400 message has one envelope recipient. SA can use these headers,
2401 obviously out-of-the-box. Patch from Alex Miller.
2402
9b4768fa
PH
2403PH/08 The ${def test on a variable was returning false if the variable's
2404 value was "0", contrary to what the specification has always said!
2405 The result should be true unless the variable is empty.
2406
2407PH/09 The syntax error of a character other than { following "${if
2408 def:variable_name" (after optional whitespace) was not being diagnosed.
2409 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2410 accidental colon was present, for example, could give incorrect results.
2411
0d7eb84a
PH
2412PH/10 Tidied the code in a number of places where the st_size field of a stat()
2413 result is used (not including appendfile, where other changes are about
2414 to be made).
2415
2416PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2417 This involved changing a lot of size variables from int to off_t. It
2418 should work with maildirs and everything.
2419
40727bee
TK
2420TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2421 spamd dying while we are connected to it.
2422
554d2369
TF
2423TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2424 <jgh@wizmail.org>
2425
1f922db1
PH
2426PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2427 function for BDB 4.3.
2428
ef213c3b
PH
2429PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2430
8ac170f3
PH
2431PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2432 the sources for PCRE have been re-arranged and more files are now
2433 involved.
2434
b1c749bb
PH
2435PH/15 The code I had for printing potentially long long variables in PH/11
2436 above was not the best (it lost precision). The length of off_t variables
2437 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2438 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2439 to be "long long int" or "long int". This is needed for the internal
2440 formatting function string_vformat().
b1c749bb 2441
4aac9b49
PH
2442PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2443 the configuration file to be ":syslog", then the script "guesses" where
2444 the logs files are, rather than using the compiled in default. In our
2445 case the guess is not the same as the compiled default, so the script
2446 suddenly stopped working when I started to use syslog. The patch checks
2447 to see if log_file_path is "". If so, it attempts to read it from exim
2448 with no configuration file to get the compiled in version, before it
2449 falls back to the previous guessing code."
2450
294520c8
TK
2451TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2452 implementing BATV in an Exim configuration. See NewStuff for the gory
2453 details.
2454
5bd022fe
PH
2455PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2456 Makefile that are specific to HP-UX.
2457
90e9ce59
PH
2458PH/18 If the "use_postmaster" option was set for a recipient callout together
2459 with the "random" option, the postmaster address was used as the MAIL
2460 FROM address for the random test, but not for the subsequent recipient
2461 test. It is now used for both.
2462
5ea81592
PH
2463PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2464 patch removes a few documentation additions to RFC 3028, because the
2465 latest draft now contains them. It adds the new en;ascii-case comparator
2466 and a new error check for 8bit text in MIME parts. Comparator and
2467 require names are now matched exactly. I enabled the subaddress
2468 extension, but it is not well tested yet (read: it works for me)."
2469
c6c2dc1d
PH
2470PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2471 rework some of the code of TK/09 above to avoid the hardwired use of
2472 "%lld" and "long long". Replaced the call to snprintf() with a call to
2473 string_vformat().
2474
fffffe4c
PH
2475PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2476 records point to non-existent hosts", "retry timeout exceeded", and
2477 "retry time not reached for any host after a long failure period".
ca02eafb 2478
9a26b6b2
PH
2479PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2480 experimental DomainKeys support:
2481
2482 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2483 (2) On an error such as an illegally used "control", the wrong name for
2484 the control was given.
2485
2486 These problems did NOT occur unless DomainKeys support was compiled.
2487
4aee0225
PH
2488PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2489
32d668a5
PH
2490PH/24 Added ${if match_ip condition.
2491
8187c3f3
PH
2492PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2493 databases so that it will be absolutely obvious if a crash occurs in the
2494 DB library. This is a regular occurrence (often caused by mis-matched
2495 db.h files).
2496
ff790e47 2497PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2498 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2499 picked up on a user's system that detects such things. There doesn't seem
2500 to be a gcc warning option for this - only an attribute that has to be
2501 put on the function's prototype. It seems that in Fedora Core 4 they have
2502 set this on a number of new functions. No doubt there will be more in due
2503 course.
ff790e47 2504
5417f6d1
PH
2505PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2506 specify a transport. However, if an address that was verified by such a
2507 router was the subject of a callout, Exim crashed because it tried to
2508 read the rcpt_include_affixes from the non-existent transport. Now it
2509 just assumes that the setting of that option is false. This bug was
2510 introduced by 4.51/PH/31.
2511
59cf8544
PH
2512PH/28 Changed -d+all to exclude +memory, because that information is very
2513 rarely of interest, but it makes the output a lot bigger. People tend to
2514 do -d+all out of habit.
2515
e7ad8a65
PH
2516PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2517 code in os-type was giving problems when libc.so lives in lib64, like on
2518 x86_64 Fedora Core.
2519
ade42478
PH
2520PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2521 aren't the modern standard, and it seems that some systems' include files
2522 don't always have them. Exim was already checking for some of the newer
2523 ones like T_AAAA, and defining it itself. I've added checks for all the
2524 record types that Exim uses.
2525
182ad5cf
PH
2526PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2527 not automatically generating a new one, as it is supposed to. This
2528 prevented TLS from working. If the file did exist, but contained invalid
2529 data, a new version was generated, as expected. It was only the case of a
2530 non-existent file that was broken.
2531
b0d9fc80
TK
2532TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2533 with a change in libdomainkeys > 0.64.
2534
2535TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2536 from DNS. If the selector record carries the flag, it now has
2537 precedence over the domain-wide flag.
2538
2539TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2540
47c7a64a
PH
2541PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2542 the use of a port name that isn't defined in /etc/services) occurred, the
2543 message was deferred as in a normal delivery, and thus remained on the
2544 spool, instead of being failed because of the mua_wrapper setting. This
2545 is now fixed, and I tidied up some of the mua_wrapper messages at the
2546 same time.
2547
a388bce4
SC
2548SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2549 the messages in a hash of arrays rather than using individual hashes.
2550 This is a bit cleaner and results in dramatic memory savings, albeit
2551 at a slight CPU cost.
2552
2553SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2554 as requested by Marc Sherman.
2555
2556SC/10 Eximstats: added histograms for user specified patterns as requested
2557 by Marc Sherman.
2558
0793e4ed
SC
2559SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2560
c58b88df
PH
2561PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2562 fopen() in the content-scanning modules that did not already have it.
2563
e7ad8a65 2564
7982096b
PH
2565Exim version 4.51
2566-----------------
2567
1a46a8c5
PH
2568TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2569 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2570
2f079f46 2571TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2572
2573TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2574
2575PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2576 to test Sieve filters that use "vacation".
2577
2578PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2579 that changes the way the GnuTLS parameters are stored in the cache file.
2580 The new format can be generated externally. For backward compatibility,
2581 if the data in the cache doesn't make sense, Exim assumes it has read an
2582 old-format file, and it generates new data and writes a new file. This
2583 means that you can't go back to an older release without removing the
2584 file.
2585
2586PH/03 A redirect router that has both "unseen" and "one_time" set does not
2587 work if there are any delivery delays because "one_time" forces the
2588 parent to be marked "delivered", so its unseen clone is never tried
2589 again. For this reason, Exim now forbids the simultaneous setting of
2590 these two options.
2591
2592PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2593 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2594 entry if you want to know the details. The fix, however, neglected to
2595 consider the case when local delivery batching is involved. The test for
2596 "previously delivered" was not happening when checking to see if an
2597 address could be batched with a previous (undelivered) one; under
2598 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2599 address.
1a46a8c5
PH
2600
2601PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2602 in its include files, and this causes problems building Exim.
2603
2604PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2605 header_syntax) but Exim was just ignoring anything given after a slash.
2606 In particular, this caused confusion with an attempt to use "verify =
2607 reverse_host_lookup/defer_ok". An error is now given when options are
2608 supplied for verify items that do not have them. (Maybe reverse_host_
2609 lookup should have a defer_ok option, but that's a different point.)
2610
2611PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2612 defined by RFC 821) to 2048, because there were problems with some AUTH
2613 commands, and RFC 1869 says the size should be increased for extended
2614 SMTP commands that take arguments.
2615
2616PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2617 Finch).
2618
2619PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2620 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2621
49c2d5ea
PH
2622PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2623 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2624 whatever). Otherwise the password may appear in the log. Following change
2625 PH/42 below, there is no longer a chance of it appearing in a bounce
2626 message.
49c2d5ea 2627
bf759a8b
PH
2628PH/11 Installed exipick version 20050225.0 from John Jetmore.
2629
83364d30
PH
2630PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2631 of its addresses was ever tried. (Bugzilla bug #2.)
2632
7999bbd7
PH
2633PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2634 the result incorrectly in the debug output. (It correctly added a newline
2635 to what was transported.)
2636
7dbf77c9
PH
2637TF/01 Added $received_time.
2638
74e0617f
PH
2639PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2640 commented out examples of how to interface to a virus scanner and to
2641 SpamAssassin. Also added commented examples of av_scanner and
2642 spamd_address settings.
2643
2f079f46
PH
2644PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2645 and controls are allowed in which ACLs. There were a couple of minor
2646 errors. Some of the entries in the conditions table (which is a table of
2647 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2648 negation of where the condition IS allowed.
2649
8c841523
PH
2650PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2651
7766a4f0
PH
2652PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2653 header file does not have a version number, so I've had to invent a new
2654 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2655 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2656 radiusclient), but it was contributed by a Radius user.
2657
8b417f2c
PH
2658PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2659 files or directories, for OpenSSL.
2660
901f42cb
PH
2661PH/19 When an Exim process that is running as root has to create an Exim log
2662 file, it does so in a subprocess that runs as exim:exim so as to get the
2663 ownership right at creation (otherwise, other Exim processes might see
2664 the file with the wrong ownership). There was no test for failure of this
2665 fork() call, which would lead to the process getting stuck as it waited
2666 for a non-existent subprocess. Forks do occasionally fail when resources
2667 run out. I reviewed all the other calls to fork(); they all seem to check
2668 for failure.
2669
f9b9210e
PH
2670PH/20 When checking for unexpected SMTP input at connect time (before writing
2671 the banner), Exim was not dealing correctly with a non-positive return
2672 from the read() function. If the client had disconnected by this time,
2673 the result was a log entry for a synchronization error with an empty
2674 string after "input=" when read() returned zero. If read() returned -1
2675 (an event I could not check), uninitialized data bytes were printed.
2676 There were reports of junk text (parts of files, etc) appearing after
2677 "input=".
2678
54cdb463
PH
2679PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2680
cf00dad6
PH
2681PH/22 Added support for macro redefinition, and (re)definition in between
2682 driver and ACL definitions.
2683
acb1b346
PH
2684PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2685 forgetting to use the resulting value; it was using the unexpanded value.
2686
c5ddb310
PH
2687PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2688 hadn't been configured. The fix is from Juergen Kreileder, who
2689 understands it better than I do:
2690
2691 "Here's what I see happening with three configured cyrus_sasl
2692 authenticators configured (plain, login, cram-md5):
2693
2694 On startup auth_cyrus_sasl_init() gets called for each of these.
2695 This means three calls to sasl_listmech() without a specified mech_list.
2696 => SASL tests which mechs of all available mechs actually work
2697 => three warnings about OTP not working
2698 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2699
2700 With the patch, sasl_listmech() also gets called three times. But now
2701 SASL's mech_list option is set to the server_mech specified in the the
2702 authenticator. Or in other words, the answer from sasl_listmech()
2703 gets limited to just the mech you're testing for (which is different
2704 for each call.)
2705 => the return list contains just 'plain' or 'login', 'cram-md5' or
2706 nothing depending on the value of ob->server_mech.
2707
2708 I've just tested the patch: Authentication still works fine,
2709 unavailable mechs specified in the exim configuration are still
2710 caught, and the auth.log warnings about OTP are gone."
2711
31619da6
PH
2712PH/25 When debugging is enabled, the contents of the command line are added
2713 to the debugging output, even when log_selector=+arguments is not
2714 specified.
2715
bebaf0fc
PH
2716PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2717 answer is "GNU", and only if the return is "GNU/something" is the answer
2718 "Linux".
2719
475fe28a
PH
2720PH/27 $acl_verify_message is now set immediately after the failure of a
2721 verification in an ACL, and so is available in subsequent modifiers. In
2722 particular, the message can be preserved by coding like this:
2723
2724 warn !verify = sender
2725 set acl_m0 = $acl_verify_message
2726
2727 Previously, $acl_verify_message was set only while expanding "message"
2728 and "log_message" when a very denied access.
2729
7e8bec7a
PH
2730PH/28 Modified OS/os.c-Linux with
2731
2732 -#ifndef OS_LOAD_AVERAGE
2733 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2734
2735 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2736 nomenclature these days.)
2737
e4a89c47
PH
2738PH/29 Installed patch from the Sieve maintainer that adds the options
2739 sieve_useraddress and sieve_subaddress to the redirect router.
2740
5ca2a9a1
PH
2741PH/30 In these circumstances:
2742 . Two addresses routed to the same list of hosts;
2743 . First host does not offer TLS;
2744 . First host accepts first address;
2745 . First host gives temporary error to second address;
2746 . Second host offers TLS and a TLS session is established;
2747 . Second host accepts second address.
2748 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2749 and peerdn, if requested) that were in fact used only for the second
2750 address.
7e8bec7a 2751
c688b954
PH
2752PH/31 When doing a callout as part of verifying an address, Exim was not paying
2753 attention to any local part prefix or suffix that was matched by the
2754 router that accepted the address. It now behaves in the same way as it
2755 does for delivery: the affixes are removed from the local part unless
2756 rcpt_include_affixes is set on the transport.
2757
fed77020
PH
2758PH/32 Add the sender address, as F=<...>, to the log line when logging a
2759 timeout during the DATA phase of an incoming message.
2760
7fe1560f
PH
2761PH/33 Sieve envelope tests were broken for match types other than :is. I have
2762 applied a patch sanctioned by the Sieve maintainer.
c688b954 2763
ebb6e6d5
PH
2764PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2765 the uid or gid is negative. A case of a negative gid caused this to be
2766 noticed. The fix allows for either to be negative.
2767
9c4e8f60
PH
2768PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2769 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2770 overlooked.
2771
2772PH/36 The change PH/12 above was broken. Fixed it.
2773
d7174846
PH
2774PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2775 the grounds that routing the same address twice would always produce the
2776 same answer. This might have been true once, but it is certainly no
2777 longer true now. Routing a child address may depend on the previous
2778 routing that produced that child. Some complicated redirection strategies
2779 went wrong when messages had multiple recipients, and made Exim's
2780 behaviour dependent on the order in which the addresses were given.
2781
2782 I have moved the duplicate checking until after the routing is complete.
2783 Exim scans the addresses that are assigned to local and remote
2784 transports, and removes any duplicates. This means that more work will be
2785 done, as duplicates will always all be routed, but duplicates are
2786 presumably rare, so I don't expect this is of any significance.
2787
2788 For deliveries to pipes, files, and autoreplies, the duplicate checking
2789 still happens during the routing process, since they are not going to be
2790 routed further.
2791
cfe75fc3
PH
2792PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2793 It corrects a timeout issue with spamd. This is Ian's comment: "The
2794 background is that sometimes spamd either never reads data from a
2795 connection it has accepted, or it never writes response data. The exiscan
2796 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2797 blindly assumes that writes won't block so it may never time out."
2798
be22d70e
PH
2799PH/39 Allow G after quota size as well as K and M.
2800
0612b098
PH
2801PH/40 The value set for $authenticated_id in an authenticator may not contain
2802 binary zeroes or newlines because the value is written to log lines and
2803 to spool files. There was no check on this. Now the value is run through
2804 the string_printing() function so that such characters are converted to
2805 printable escape sequences.
2806
2e0c1448
PH
2807PH/41 $message_linecount is a new variable that contains the total number of
2808 lines in the message. Compare $body_linecount, which is the count for the
2809 body only.
2810
447d236c
PH
2811PH/42 Exim no longer gives details of delivery errors for specific addresses in
2812 bounce and delay warning messages, except in certain special cases, which
2813 are as follows:
2814
2815 (a) An SMTP error message from a remote host;
2816 (b) A message specified in a :fail: redirection;
2817 (c) A message specified in a "fail" command in a system filter;
2818 (d) A message specified in a FAIL return from the queryprogram router;
2819 (e) A message specified by the cannot_route_message router option.
2820
2821 In these cases only, Exim does include the error details in bounce and
2822 warning messages. There are also a few cases where bland messages such
2823 as "unrouteable address" or "local delivery error" are given.
2824
d20976dc
PH
2825PH/43 $value is now also set for the "else" part of a ${run expansion.
2826
f656d135
PH
2827PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2828 being worked on, but at least Exim now implements the latest version to
2829 play with."
2830
2e2a30b4
PH
2831PH/45 In a pipe transport, although a timeout while waiting for the pipe
2832 process to complete was treated as a delivery failure, a timeout while
2833 writing the message to the pipe was logged, but erroneously treated as a
2834 successful delivery. Such timeouts include transport filter timeouts. For
2835 consistency with the overall process timeout, these timeouts are now
2836 treated as errors, giving rise to delivery failures by default. However,
2837 there is now a new Boolean option for the pipe transport called
2838 timeout_defer, which, if set TRUE, converts the failures into defers for
2839 both kinds of timeout. A transport filter timeout is now identified in
2840 the log output.
2841
9176e9f0
PH
2842PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2843 systems where "make" and "gmake" are different, calling "gmake" at top
2844 level broke things. I've arranged for the value of $(MAKE) to be passed
2845 from the Makefile to this script so that it can call the same version of
2846 "make".
2847
7982096b 2848
bbe902f0
PH
2849A note about Exim versions 4.44 and 4.50
2850----------------------------------------
2851
2852Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2853changes of various kinds. As a consequence, a big documentation update was
2854needed. This delayed the release for rather longer than seemed good, especially
2855in the light of a couple of (minor) security issues. Therefore, the changes
2856that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2857release. So 4.44 and 4.50 are in effect two different branches that both start
2858from 4.43.
2859
2860I have left the 4.50 change log unchanged; it contains all the changes since
28614.43. The change log for 4.44 is below; many of its items are identical to
2862those for 4.50. This seems to be the most sensible way to preserve the
2863historical information.
2864
2865
f7b63901 2866Exim version 4.50
495ae4b0
PH
2867-----------------
2868
5fe762f6
PH
2869 1. Minor wording change to the doc/README.SIEVE file.
2870
139059f6 2871 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2872 computation of the current number of files was incorrect.
495ae4b0 2873
7086e875
PH
2874 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2875 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2876 place.
2877
35af9f61
PH
2878 4. Give more explanation in the error message when the command for a transport
2879 filter fails to execute.
2880
b668c215
PH
2881 5. There are several places where Exim runs a non-Exim command in a
2882 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2883 was being done only for the command run by the queryprogram router. It is
2884 now done for all such subprocesses. The other cases are: ${run, transport
2885 filters, and the commands run by the lmtp and pipe transports.
2886
a494b1e1
PH
2887 6. Added CONFIGURE_GROUP build-time option.
2888
2889 7. Some older OS have a limit of 256 on the maximum number of file
2890 descriptors. Exim was using setrlimit() to set 1000 as a large value
2891 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2892 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2893
c5fcb476
PH
2894 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2895 was an oversight, and furthermore, ever since the addition of extra
2896 controls (e.g. 4.43/32), the checks on when to allow different forms of
2897 "control" were broken. There should now be diagnostics for all cases when a
2898 control that does not make sense is encountered.
2899
69358f02
PH
2900 9. Added the /retain_sender option to "control=submission".
2901
5be20824
PH
290210. $recipients is now available in the predata ACL (oversight).
2903
eb2c0248
PH
290411. Tidy the search cache before the fork to do a delivery from a message
2905 received from the command line. Otherwise the child will trigger a lookup
2906 failure and thereby defer the delivery if it tries to use (for example) a
2907 cached ldap connection that the parent has called unbind on.
2908
2a3eea10
PH
290912. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2910 of $address_data from the recipient verification was clobbered by the
2911 sender verification.
2912
291313. The value of address_data from a sender verification is now available in
2914 $sender_address_data in subsequent conditions in the ACL statement.
2915
23c7ff99
PH
291614. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2917
4deaf07d
PH
291815. Added a new option "connect=<time>" to callout options, to set a different
2919 connection timeout.
2920
926e1192
PH
292116. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2922 was its contents. (It was OK if the option was not defined at all.)
2923
650edc6f
PH
292417. A "Completed" log line is now written for messages that are removed from
2925 the spool by the -Mrm option.
2926
2c7db3f5
PH
292718. New variables $sender_verify_failure and $recipient_verify_failure contain
2928 information about exactly what failed.
2929
3d235903
PH
293019. Added -dd to debug only the daemon process.
2931
7c7ad977
PH
293220. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2933 handles timeouts, both on the server side and network timeouts. Renamed the
2934 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2935
981756db
PH
293621. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2937 It is now set to "smtps".
2938
d4eb88df
PH
293922. $host_address is now set to the target address during the checking of
2940 ignore_target_hosts.
2941
294223. When checking ignore_target_hosts for an ipliteral router, no host name was
2943 being passed; this would have caused $sender_host_name to have been used if
2944 matching the list had actually called for a host name (not very likely,
2945 since this list is usually IP addresses). A host name is now passed as
2946 "[x.x.x.x]".
2947
7d468ab8
PH
294824. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2949 code that specifies a non-restarting handler (typically sigaction() in
2950 modern systems) in an attempt to fix a rare and obscure crash bug.
2951
295225. Narrowed the window for a race in the daemon that could cause it to ignore
2953 SIGCHLD signals. This is not a major problem, because they are used only to
2954 wake it up if nothing else does.
2955
62c0818f
PH
295626. A malformed maildirsize file could cause Exim to calculate negative values
2957 for the mailbox size or file count. Odd effects could occur as a result.
2958 The maildirsize information is now recalculated if the size or filecount
2959 end up negative.
2960
26034054
PH
296127. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2962 support for a long time. Removed HAVE_SYS_VFS_H.
2963
af66f652
PH
296428. Installed the latest version of exipick from John Jetmore.
2965
90af77f4
PH
296629. In an address list, if the pattern was not a regular expression, an empty
2967 subject address (from a bounce message) matched only if the pattern was an
2968 empty string. Non-empty patterns were not even tested. This was the wrong
2969 because it is perfectly reasonable to use an empty address as part of a
2970 database query. An empty address is now tested by patterns that are
2971 lookups. However, all the other forms of pattern expect the subject to
2972 contain a local part and a domain, and therefore, for them, an empty
2973 address still always fails if the pattern is not itself empty.
2974
d8ef3577
PH
297530. Exim went into a mad DNS loop when attempting to do a callout where the
2976 host was specified on an smtp transport, and looking it up yielded more
2977 than one IP address.
2978
5cb8cbc6
PH
297931. Re-factored the code for checking spool and log partition space into a
2980 function that finds that data and another that does the check. The former
2981 is then used to implement four new variables: $spool_space, $log_space,
2982 $spool_inodes, and $log_inodes.
2983
14702f5b
PH
298432. The RFC2047 encoding function was originally intended for short strings
2985 such as real names; it was not keeping to the 75-character limit for
2986 encoded words that the RFC imposes. It now respects the limit, and
2987 generates multiple encoded words if necessary. To be on the safe side, I
2988 have increased the buffer size for the ${rfc2047: expansion operator from
2989 1024 to 2048 bytes.
2990
063b1e99
PH
299133. It is now permitted to omit both strings after an "if" condition; if the
2992 condition is true, the result is "true". As before, when the second string
2993 is omitted, a false condition yields an empty string. This makes it less
2994 cumbersome to write custom ACL and router conditions.
2995
652e1b65
PH
299634. Failure to deliver a bounce message always caused it to be frozen, even if
2997 there was an errors_to setting on the router. The errors_to setting is now
2998 respected.
2999
6f0c9a4f
PH
300035. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3001 canonical form (fully expanded) before being placed in
3002 $sender_host_address.
3003
33397d19
PH
300436. The table in the code that translates DNS record types into text (T_A to
3005 "A" for instance) was missing entries for NS and CNAME. It is just possible
3006 that this could have caused confusion if both these types were looked up
3007 for the same domain, because the text type is used as part of Exim's
3008 per-process caching. But the chance of anyone hitting this buglet seems
3009 very small.
3010
7bb56e1f
PH
301137. The dnsdb lookup has been extended in a number of ways.
3012
3013 (1) There is a new type, "zns", which walks up the domain tree until it
3014 finds some nameserver records. It should be used with care.
3015
ea3bc19b
PH
3016 (2) There is a new type, "mxh", which is like "mx" except that it returns
3017 just the host names, not the priorities.
3018
3019 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
3020 looked up. The behaviour when one of the lookups defers can be
3021 controlled by a keyword.
7bb56e1f 3022
ea3bc19b 3023 (4) It is now possible to specify the separator character for use when
7bb56e1f 3024 multiple records are returned.
33397d19 3025
0bcb2a0e
PH
302638. The dnslists ACL condition has been extended: it is now possible to supply
3027 a list of IP addresses and/or domains to be looked up in a particular DNS
3028 domain.
3029
2ac0e484
PH
303039. Added log_selector=+queue_time_overall.
3031
4e1fde53
PH
303240. When running the queue in the test harness, wait just a tad after forking a
3033 delivery process, to get repeatability of debugging output.
3034
de365ded
PH
303541. Include certificate and key file names in error message when GnuTLS fails
3036 to set them up, because the GnuTLS error message doesn't include the name
3037 of the failing file when there is a problem reading it.
3038
f05da2e8
PH
303942. Allow both -bf and -bF in the same test run.
3040
d6453af2
PH
304143. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
3042
f7b63901
PH
304344. The "Exiscan patch" is now merged into the mainline Exim source.
3044
304545. Sometimes the final signoff response after QUIT could fail to get
3046 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3047 < 0 before doing a fflush(). This bug looks as though it goes back to the
3048 introduction of TLS in release 3.20, but "sometimes" must have been rare
3049 because the tests only now provoked it.
3050
a444213a
PH
305146. Reset the locale to "C" after calling embedded Perl, in case it was changed
3052 (this can affect the format of dates).
3053
0ec020ea
PH
305447. exim_tidydb, when checking for the continued existence of a message for
3055 which it has found a message-specific retry record, was not finding
3056 messages that were in split spool directories. Consequently, it was
3057 deleting retry records that should have stayed in existence.
3058
b1206957
PH
305948. Steve fixed some bugs in eximstats.
3060
306149. The SPA authentication driver was not abandoning authentication and moving
3062 on to the next authenticator when an expansion was forced to fail,
3063 contradicting the general specification for all authenticators. Instead it
3064 was generating a temporary error. It now behaves as specified.
3065
26dd5a95
PH
306650. The default ordering of permitted cipher suites for GnuTLS was pessimal
3067 (the order specifies the preference for clients). The order is now AES256,
3068 AES128, 3DES, ARCFOUR128.
3069
343b2385
PH
307051. Small patch to Sieve code - explicitly set From: when generating an
3071 autoreply.
3072
1c5466b9
PH
307352. Exim crashed if a remote delivery caused a very long error message to be
3074 recorded - for instance if somebody sent an entire SpamAssassin report back
3075 as a large number of 550 error lines. This bug was coincidentally fixed by
3076 increasing the size of one of Exim's internal buffers (big_buffer) that
3077 happened as part of the Exiscan merge. However, to be on the safe side, I
3078 have made the code more robust (and fixed the comments that describe what
3079 is going on).
3080
55ee9ee3
PH
308153. Now that there can be additional text after "Completed" in log lines (if
3082 the queue_time_overall log selector is set), a one-byte patch to exigrep
3083 was needed to allow it to recognize "Completed" as not the last thing in
3084 the line.
3085
d38f8232
PH
308654. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
3087 patch that reportedly fixes this has been added. I am not expert enough to
3088 create a test for it. This is what the patch creator wrote:
3089
3090 "I found a little strange behaviour of ldap code when working with
3091 Windows 2003 AD Domain, where users was placed in more than one
3092 Organization Units. When I tried to give exim partial DN, the exit code
3093 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
3094 But simultaneously result of request was absolutely normal ldap result,
3095 so I produce this patch..."
3096
3295e65b
PH
3097 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
3098 REFERENCE, so I have modified the code to exclude the patch when that macro
3099 is not defined.
3100
7102e136
PH
310155. Some experimental protocols are using DNS PTR records for new purposes. The
3102 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
3103 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3104 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 3105 CAN-2005-0021
7102e136 3106
3ca0ba97
PH
310756. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
3108
c2bcbe20
PH
310957. Double the size of the debug message buffer (to 2048) so that more of very
3110 long debug lines gets shown.
3111
18ce445d
PH
311258. The exicyclog utility now does better if the number of log files to keep
3113 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
3114
1f5b4c3d
PH
311559. Two changes related to the smtp_active_hostname option:
3116
3117 (1) $smtp_active_hostname is now available as a variable.
3118 (2) The default for smtp_banner uses $smtp_active_hostname instead
3119 of $primary_hostname.
3120
b975ba52
PH
312160. The host_aton() function is supposed to be passed a string that is known
3122 to be a valid IP address. However, in the case of IPv6 addresses, it was
3123 not checking this. This is a hostage to fortune. Exim now panics and dies
3124 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
3125 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3126 components; fortuitously, this particular loophole had already been fixed
3127 by change 4.50/55 above.
3128
3129 If there are any other similar loopholes, the new check in host_aton()
3130 itself should stop them being exploited. The report I received stated that
3131 data on the command line could provoke the exploit when Exim was running as
3132 exim, but did not say which command line option was involved. All I could
3133 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3134 running as the user.
ea3a6f44 3135 CAN-2005-0021
85b87bc2
PH
3136
313761. There was a buffer overflow vulnerability in the SPA authentication code
3138 (which came originally from the Samba project). I have added a test to the
3139 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 3140 CAN-2005-0022
b975ba52 3141
17ffcae7
PH
314262. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3143 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3144
d95f9fdb
PH
314563. The daemon start-up calls getloadavg() while still root for those OS that
3146 need the first call to be done as root, but it missed one case: when
3147 deliver_queue_load_max is set with deliver_drop_privilege. This is
3148 necessary for the benefit of the queue runner, because there is no re-exec
3149 when deliver_drop_privilege is set.
3150
86b8287f
PH
315164. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3152 This has been fixed.
3153
60dc5e56
PH
315465. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3155 was in use, was not putting the data itself into the right store pool;
3156 consequently, it could be overwritten for a subsequent message in the same
3157 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3158 the caching.)
3159
533244af
PH
316066. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3161
a5a28604
PH
316267. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3163 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3164 the function were treating the return as a boolean value, which happened to
3165 work because 0=false and not-0=true, but is not correct code.
3166
7e634d24
PH
316768. The host_aton() function was not handling scoped IPv6 addresses (those
3168 with, for example, "%eth0" on the end) correctly.
3169
3e11c26b
PH
317069. Fixed some compiler warnings in acl.c for the bitmaps specified with
3171 negated items (that is, ~something) in unsigned ints. Some compilers
3172 apparently mutter when there is no cast.
3173
6729cf78
PH
317470. If an address verification called from an ACL failed, and did not produce a
3175 user-specific message (i.e. there was only a "system" message), nothing was
3176 put in $acl_verify_message. In this situation, it now puts the system
3177 message there.
3178
00f00ca5
PH
317971. Change 4.23/11 added synchronization checking at the start of an SMTP
3180 session; change 4.31/43 added the unwanted input to the log line - except
3181 that it did not do this in the start of session case. It now does.
3182
c9bdd01c
PH
318372. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3184 This is wrong and can cause the other end to generate a synchronization
3185 error if it is another Exim or anything else that does the synchronization
3186 check. A QUIT command is no longer sent after a timeout.
3187
d43194df
PH
318873. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3189 during host lookups.
3190
fe5b5d0b
PH
319174. The defer_ok option of callout verification was not working if it was used
3192 when verifying addresses in header lines, that is, for this case:
3193
3194 verify = header_sender/callout=defer_ok
3195
76a2d7ba
PH
319675. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3197 those file descriptors could be used for SMTP connections. If anything
3198 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3199 could be sent to the SMTP client, causing chaos. The daemon now opens
3200 stdin, stdout, and stderr to /dev/null when it puts itself into the
3201 background.
3202
320376. Arrange for output from Perl's "warn" command to be written to Exim's main
3204 log by default. The user can override this with suitable Perl magic.
3205
04f7d5b9
PH
320677. The use of log_message on a "discard" ACL verb, which is supposed to add to
3207 the log message when discard triggers, was not working for the DATA ACL or
3208 for the non-SMTP ACL.
3209
bc60667e
PH
321078. Error message wording change in sieve.c.
3211
bb6e88ff
PH
321279. If smtp_accept_max_per_host was set, the number of connections could be
3213 restricted to fewer than expected, because the daemon was trying to set up
3214 a new connection before checking whether the processes handling previous
3215 connections had finished. The check for completed processes is now done
3216 earlier. On busy systems, this bug wouldn't be noticed because something
3217 else would have woken the daemon, and it would have reaped the completed
3218 process earlier.
3219
1e70f85b
PH
322080. If a message was submitted locally by a user whose login name contained one
3221 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3222 It caused a spool format error. I have fixed the spool reading code. A
3223 related problem was that the "from" clause in the Received: line became
3224 illegal because of the space(s). It is now covered by ${quote_local_part.
3225
322681. Included the latest eximstats from Steve (adds average sizes to HTML Top
3227 tables).
3228
4e01f9d6
PH
322982. Updated OS/Makefile-AIX as per message from Mike Meredith.
3230
1ee1cef2
PH
323183. Patch from Sieve maintainer to fix unterminated string problem in
3232 "vacation" handling.
3233
6e2b4ccc
PH
323484. Some minor changes to the Linux configuration files to help with other
3235 OS variants using glibc.
3236
8e669ac1
PH
323785. One more patch for Sieve to update vacation handling to latest spec.
3238
495ae4b0 3239
bbe902f0
PH
3240----------------------------------------------------
3241See the note above about the 4.44 and 4.50 releases.
3242----------------------------------------------------
3243
3244
3245Exim version 4.44
3246-----------------
3247
3248 1. Change 4.43/35 introduced a bug that caused file counts to be
3249 incorrectly computed when quota_filecount was set in an appendfile
3250 transport
3251
3252 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3253 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3254 place.
3255
3256 3. Give more explanation in the error message when the command for a transport
3257 filter fails to execute.
3258
3259 4. There are several places where Exim runs a non-Exim command in a
3260 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3261 was being done only for the command run by the queryprogram router. It is
3262 now done for all such subprocesses. The other cases are: ${run, transport
3263 filters, and the commands run by the lmtp and pipe transports.
3264
3265 5. Some older OS have a limit of 256 on the maximum number of file
3266 descriptors. Exim was using setrlimit() to set 1000 as a large value
3267 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3268 systems. I've change it so that if it can't get 1000, it tries for 256.
3269
3270 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3271 was an oversight, and furthermore, ever since the addition of extra
3272 controls (e.g. 4.43/32), the checks on when to allow different forms of
3273 "control" were broken. There should now be diagnostics for all cases when a
3274 control that does not make sense is encountered.
3275
3276 7. $recipients is now available in the predata ACL (oversight).
3277
3278 8. Tidy the search cache before the fork to do a delivery from a message
3279 received from the command line. Otherwise the child will trigger a lookup
3280 failure and thereby defer the delivery if it tries to use (for example) a
3281 cached ldap connection that the parent has called unbind on.
3282
3283 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3284 of $address_data from the recipient verification was clobbered by the
3285 sender verification.
3286
328710. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3288 was its contents. (It was OK if the option was not defined at all.)
3289
329011. A "Completed" log line is now written for messages that are removed from
3291 the spool by the -Mrm option.
3292
329312. $host_address is now set to the target address during the checking of
3294 ignore_target_hosts.
3295
329613. When checking ignore_target_hosts for an ipliteral router, no host name was
3297 being passed; this would have caused $sender_host_name to have been used if
3298 matching the list had actually called for a host name (not very likely,
3299 since this list is usually IP addresses). A host name is now passed as
3300 "[x.x.x.x]".
3301
330214. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3303 code that specifies a non-restarting handler (typically sigaction() in
3304 modern systems) in an attempt to fix a rare and obscure crash bug.
3305
330615. Narrowed the window for a race in the daemon that could cause it to ignore
3307 SIGCHLD signals. This is not a major problem, because they are used only to
3308 wake it up if nothing else does.
3309
331016. A malformed maildirsize file could cause Exim to calculate negative values
3311 for the mailbox size or file count. Odd effects could occur as a result.
3312 The maildirsize information is now recalculated if the size or filecount
3313 end up negative.
3314
331517. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3316 support for a long time. Removed HAVE_SYS_VFS_H.
3317
ea3a6f44 331818. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3319
332019. Allow an empty sender to be matched against a lookup in an address list.
3321 Previously the only cases considered were a regular expression, or an
3322 empty pattern.
3323
332420. Exim went into a mad DNS lookup loop when doing a callout where the
3325 host was specified on the transport, if the DNS lookup yielded more than
3326 one IP address.
3327
ea3a6f44
NM
332821. The RFC2047 encoding function was originally intended for short strings
3329 such as real names; it was not keeping to the 75-character limit for
3330 encoded words that the RFC imposes. It now respects the limit, and
3331 generates multiple encoded words if necessary. To be on the safe side, I
3332 have increased the buffer size for the ${rfc2047: expansion operator from
3333 1024 to 2048 bytes.
bbe902f0 3334
ea3a6f44
NM
333522. Failure to deliver a bounce message always caused it to be frozen, even if
3336 there was an errors_to setting on the router. The errors_to setting is now
3337 respected.
bbe902f0
PH
3338
333923. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3340 canonical form (fully expanded) before being placed in
3341 $sender_host_address.
3342
334324. Updated eximstats to version 1.33
3344
ea3a6f44
NM
334525. Include certificate and key file names in error message when GnuTLS fails
3346 to set them up, because the GnuTLS error message doesn't include the name
3347 of the failing file when there is a problem reading it.
bbe902f0
PH
3348
334926. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3350 As per change 25.
bbe902f0 3351
ea3a6f44
NM
335227. Reset the locale to "C" after calling embedded Perl, in case it was changed
3353 (this can affect the format of dates).
bbe902f0 3354
ea3a6f44
NM
335528. exim_tidydb, when checking for the continued existence of a message for
3356 which it has found a message-specific retry record, was not finding
3357 messages that were in split spool directories. Consequently, it was
3358 deleting retry records that should have stayed in existence.
bbe902f0
PH
3359
336029. eximstats updated to version 1.35
3361 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3362 1.35 - bugfix such that pie charts by volume are generated correctly
3363
ea3a6f44
NM
336430. The SPA authentication driver was not abandoning authentication and moving
3365 on to the next authenticator when an expansion was forced to fail,
3366 contradicting the general specification for all authenticators. Instead it
3367 was generating a temporary error. It now behaves as specified.
bbe902f0 3368
ea3a6f44
NM
336931. The default ordering of permitted cipher suites for GnuTLS was pessimal
3370 (the order specifies the preference for clients). The order is now AES256,
3371 AES128, 3DES, ARCFOUR128.
bbe902f0 3372
ea3a6f44
NM
337331. Small patch to Sieve code - explicitly set From: when generating an
3374 autoreply.
bbe902f0 3375
ea3a6f44
NM
337632. Exim crashed if a remote delivery caused a very long error message to be
3377 recorded - for instance if somebody sent an entire SpamAssassin report back
3378 as a large number of 550 error lines. This bug was coincidentally fixed by
3379 increasing the size of one of Exim's internal buffers (big_buffer) that
3380 happened as part of the Exiscan merge. However, to be on the safe side, I
3381 have made the code more robust (and fixed the comments that describe what
3382 is going on).
bbe902f0 3383
ea3a6f44
NM
338433. Some experimental protocols are using DNS PTR records for new purposes. The
3385 keys for these records are domain names, not reversed IP addresses. The
3386 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3387 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3388 CAN-2005-0021
3389
ea3a6f44
NM
339034. The host_aton() function is supposed to be passed a string that is known
3391 to be a valid IP address. However, in the case of IPv6 addresses, it was
3392 not checking this. This is a hostage to fortune. Exim now panics and dies
3393 if the condition is not met. A case was found where this could be provoked
3394 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3395 components; fortuitously, this particular loophole had already been fixed
3396 by change 4.50/55 or 4.44/33 above.
3397
3398 If there are any other similar loopholes, the new check in host_aton()
3399 itself should stop them being exploited. The report I received stated that
3400 data on the command line could provoke the exploit when Exim was running as
3401 exim, but did not say which command line option was involved. All I could
3402 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3403 running as the user.
bbe902f0
PH
3404 CAN-2005-0021
3405
ea3a6f44
NM
340635. There was a buffer overflow vulnerability in the SPA authentication code
3407 (which came originally from the Samba project). I have added a test to the
3408 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3409 CAN-2005-0022
3410
ea3a6f44
NM
341136. The daemon start-up calls getloadavg() while still root for those OS that
3412 need the first call to be done as root, but it missed one case: when