Raise smtp_cmd_buffer_size to 16384.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
495ae4b0
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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
e2ca7082
PP
91PP/02 Raise smtp_cmd_buffer_size to 16kB. Patch from Paul Fisher.
92 Bugzilla 879.
93
0ca0cf52 94
10906672
PP
95Exim version 4.76
96-----------------
97
98PP/01 The new ldap_require_cert option would segfault if used. Fixed.
99
754a0503
PP
100PP/02 Harmonised TLS library version reporting; only show if debugging.
101 Layout now matches that introduced for other libraries in 4.74 PP/03.
102
c0c7b2da
PP
103PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
104
e97d1f08
PP
105PP/04 New "dns_use_edns0" global option.
106
084c1d8c
PP
107PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
108 Bugzilla 1098.
109
4e7ee012
PP
110PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
111 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 112
c8d52a00
PP
113TK/01 Updated PolarSSL code to 0.14.2.
114 Bugzilla 1097. Patch from Andreas Metzler.
115
54e7ce4a
PP
116PP/07 Catch divide-by-zero in ${eval:...}.
117 Fixes bugzilla 1102.
118
5ee6f336
PP
119PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
120 Bugzilla 1104.
121
c8d52a00 122TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
123 format-string attack -- SECURITY: remote arbitrary code execution.
124
125TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
126 time unintentionally subject to list matching rules, letting the header
127 cause arbitrary Exim lookups (of items which can occur in lists, *not*
128 arbitrary string expansion). This allowed for information disclosure.
129
130PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
131 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 132
10906672 133
aa097c4c
NM
134Exim version 4.75
135-----------------
136
4c9ef03a 137NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
138 Bugzilla 1073
139
7f3d9eff
TF
140TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
141 This fixes portability to compilers other than gcc, notably
142 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
143
159f52d2
TF
144TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
145 makefiles for portability to HP-UX and POSIX correctness.
146
0cc9542a
PP
147PP/01 Permit LOOKUP_foo enabling on the make command-line.
148 Also via indented variable definition in the Makefile.
149 (Debugging by Oliver Heesakkers).
150
f7274286
PP
151PP/02 Restore caching of spamd results with expanded spamd_address.
152 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
153
7b797365
PP
154PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
155 Improves build reliability. Fix from: Frank Elsner
156
caacae52
NM
157NM/02 Fix wide character breakage in the rfc2047 coding
158 Fixes bug 1064. Patch from Andrey N. Oktyabrski
159
09dcaba9
NM
160NM/03 Allow underscore in dnslist lookups
161 Fixes bug 1026. Patch from Graeme Fowler
162
bc19a55b
PP
163PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
164 Code patches from Adam Ciarcinski of NetBSD.
caacae52 165
bd4c9759
NM
166NM/04 Fixed exiqgrep to cope with mailq missing size issue
167 Fixes bug 943.
168
b72aab72
PP
169PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
170 is logged, to avoid truncation. Patch from John Horne.
171
2fe76745
PP
172PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
173 Patch from Jakob Hirsch.
174
76aa570c
PP
175PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
176 SQL string expansion failure details.
177 Patch from Andrey Oktyabrski.
178
f1e5fef5
PP
179PP/08 Bugzilla 486: implement %M datestamping in log filenames.
180 Patch from Simon Arlott.
181
4d805ee9
PP
182PP/09 New lookups functionality failed to compile on old gcc which rejects
183 extern declarations in function scope.
184 Patch from Oliver Fleischmann
185
cd59ab18
PP
186PP/10 Use sig_atomic_t for flags set from signal handlers.
187 Check getgroups() return and improve debugging.
188 Fixed developed for diagnosis in bug 927 (which turned out to be
189 a kernel bug).
190
332f5cf3
PP
191PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
192 Patch from Mark Zealey.
193
29cfeb94
PP
194PP/12 Bugzilla 1056: Improved spamd server selection.
195 Patch from Mark Zealey.
196
660242ad
PP
197PP/13 Bugzilla 1086: Deal with maildir quota file races.
198 Based on patch from Heiko Schlittermann.
199
bc4bc4c5
PP
200PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
201 Patch from Uwe Doering, sign-off by Michael Haardt.
202
2e64baa9
NM
203NM/05 Fix to spam.c to accommodate older gcc versions which dislike
204 variable declaration deep within a block. Bug and patch from
205 Dennis Davis.
206
bddd7526
PP
207PP/15 lookups-Makefile IRIX compatibilty coercion.
208
6bac1a9a
PP
209PP/16 Make DISABLE_DKIM build knob functional.
210
552193f0
NM
211NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
212 Patch by Simon Arlott
baeee2c1 213
1b587e48
TF
214TF/03 Fix valgrind.h portability to C89 compilers that do not support
215 variable argument macros. Our copy now differs from upstream.
216
aa097c4c 217
8c07b69f
TF
218Exim version 4.74
219-----------------
220
221TF/01 Failure to get a lock on a hints database can have serious
222 consequences so log it to the panic log.
223
c0ea85ab
TF
224TF/02 Log LMTP confirmation messages in the same way as SMTP,
225 controlled using the smtp_confirmation log selector.
226
0761d44e
TF
227TF/03 Include the error message when we fail to unlink a spool file.
228
0a349494
PP
229DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
230 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
231 for maintaining out-of-tree patches for some time.
232
233PP/01 Bugzilla 139: Documentation and portability issues.
234 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
235 Handle per-OS dynamic-module compilation flags.
236
fea24b2e
PP
237PP/02 Let /dev/null have normal permissions.
238 The 4.73 fixes were a little too stringent and complained about the
239 permissions on /dev/null. Exempt it from some checks.
240 Reported by Andreas M. Kirchwitz.
241
6545de78
PP
242PP/03 Report version information for many libraries, including
243 Exim version information for dynamically loaded libraries. Created
244 version.h, now support a version extension string for distributors
245 who patch heavily. Dynamic module ABI change.
246
1670ef10
PP
247PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
248 privilege escalation vulnerability whereby the Exim run-time user
249 can cause root to append content of the attacker's choosing to
250 arbitrary files.
251
c0886197
PP
252PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
253 (Wolfgang Breyha)
254
b7487bce
PP
255PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
256 If dropping privileges for untrusted macros, we disabled normal logging
257 on the basis that it would fail; for the Exim run-time user, this is not
258 the case, and it resulted in successful deliveries going unlogged.
259 Fixed. Reported by Andreas Metzler.
260
8c07b69f 261
97fd1e48 262Exim version 4.73
ed7f7860 263-----------------
97fd1e48
PP
264
265PP/01 Date: & Message-Id: revert to normally being appended to a message,
266 only prepend for the Resent-* case. Fixes regression introduced in
267 Exim 4.70 by NM/22 for Bugzilla 607.
268
6901c596
PP
269PP/02 Include check_rfc2047_length in configure.default because we're seeing
270 increasing numbers of administrators be bitten by this.
271
a8c8d6b5
JJ
272JJ/01 Added DISABLE_DKIM and comment to src/EDITME
273
77bb000f
PP
274PP/03 Bugzilla 994: added openssl_options main configuration option.
275
a29e5231
PP
276PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
277
ec5a0394 278PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 279
55c75993
PP
280PP/06 Adjust NTLM authentication to handle SASL Initial Response.
281
453a6645 282PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
283 without a peer certificate, leading to a segfault because of an
284 assumption that peers always have certificates. Be a little more
453a6645
PP
285 paranoid. Problem reported by Martin Tscholak.
286
8544e77a
PP
287PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
288 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
289 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
290 CL also introduces -bmalware, various -d+acl logging additions and
291 more caution in buffer sizes.
8544e77a 292
83e029d5
PP
293PP/09 Implemented reverse_ip expansion operator.
294
ed7f7860
PP
295PP/10 Bugzilla 937: provide a "debug" ACL control.
296
7d9f747b
PP
297PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
298
4b2241d2
PP
299PP/12 Bugzilla 973: Implement --version.
300
10385c15
PP
301PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
302
dbc4b90d
PP
303PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
304
532be449
PP
305PP/15 Bugzilla 816: support multiple condition rules on Routers.
306
6a8de854 307PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
308 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
309 ignore trailing whitespace.
6a8de854 310
5dc43717
JJ
311JJ/02 prevent non-panic DKIM error from being sent to paniclog
312
313JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
314 "exim" to be used
55c75993 315
3346ab01
PP
316PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
317 Notification from Dr Andrew Aitchison.
318
491fab4c
PP
319PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
320 ExtendedDetectionInfo response format.
321 Notification from John Horne.
322
13eb9497
PP
323PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
324 compatible.
325
326PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
327 XSL and documented dependency on system catalogs, with examples of how
328 it normally works.
329
7f36d675
DW
330DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
331 access.
332
c1d94452
DW
333DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
334 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
335 configuration file which is writeable by the Exim user or group.
336
e2f5dc15
DW
337DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
338 of configuration files to cover files specified with the -C option if
339 they are going to be used with root privileges, not just the default
340 configuration file.
341
cd25e41d
DW
342DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
343 option (effectively making it always true).
344
261dc43e
DW
345DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
346 files to be used while preserving root privileges.
347
fa32850b
DW
348DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
349 that rogue child processes cannot use them.
350
79d4bc3d
PP
351PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
352 run-time user, instead of root.
353
43236f35 354PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
355 Exim run-time user without dropping privileges.
356
fb08281f
DW
357DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
358 result string, instead of calling string_vformat() twice with the same
359 arguments.
3346ab01 360
74935b98
DW
361DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
362 for other users. Others should always drop root privileges if they use
363 -C on the command line, even for a whitelisted configure file.
364
90b6341f
DW
365DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
366
57730b52
ML
367NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
368
66581d1e 369
465e92cf
JJ
370Exim version 4.72
371-----------------
372
453a6645
PP
373JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
374 $data_path, and $header_path variables; fixed documentation bugs and
375 typos
465e92cf 376
453a6645
PP
377JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
378 exipick to access non-standard spools, including the "frozen" queue
379 (Finput)
edae0343 380
9bd3e22c
NM
381NM/01 Bugzilla 965: Support mysql stored procedures.
382 Patch from Alain Williams
383
bb576ff7
NM
384NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
385
5a1a5845
NM
386NM/03 Bugzilla 955: Documentation fix for max_rcpts.
387 Patch from Andreas Metzler
388
981a9fad
NM
389NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
390 Patch from Kirill Miazine
391
7fc497ee
NM
392NM/05 Bugzilla 671: Added umask to procmail example.
393
1a41defa
JJ
394JJ/03 installed exipick 20100323.0, fixing doc bug
395
a466095c 396NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 397 directory. Notification and patch from Dan Rosenberg.
a466095c 398
94a6bd0b
NM
399TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
400
401TK/02 Improve log output when DKIM signing operation fails.
402
403MH/01 Treat the transport option dkim_domain as a colon separated
404 list, not as a single string, and sign the message with each element,
405 omitting multiple occurences of the same signer.
406
c1b141a8
NM
407NM/07 Null terminate DKIM strings, Null initialise DKIM variable
408 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 409
b26eacf1 410NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
411 Patch by Simon Arlott
412
179c5980 413PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 414 MBX locking. Notification from Dan Rosenberg.
179c5980 415
9bd3e22c 416
7c6d71af
NM
417Exim version 4.71
418-----------------
419
7d9f747b 420TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 421
f013fb92
NM
422NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
423
0eb8eedd
NM
424NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
425
663ee6d9
NM
426NM/03 Bugzilla 847: Enable DNSDB lookup by default.
427
177ebd9b
NM
428NM/04 Bugzilla 915: Flag broken perl installation during build.
429
7c6d71af 430
210f147e
NM
431Exim version 4.70
432-----------------
433
cdd3bb85 434TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 435 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
436
437TK/02 Write list of recipients to X-Envelope-Sender header when building
438 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 439 Hirsch).
cdd3bb85
TK
440
441TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
442 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 443 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
444
445TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
446 by Mark Daniel Reidel <mr@df.eu>.
447
210f147e
NM
448NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
449 When building exim an external PCRE library is now needed -
450 PCRE is a system library on the majority of modern systems.
451 See entry on PCRE_LIBS in EDITME file.
452
deafd5b3
NM
453NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
454 conversation. Added nologin parameter to request.
7d9f747b 455 Patch contributed by Kirill Miazine.
deafd5b3 456
089793a4
TF
457TF/01 Do not log submission mode rewrites if they do not change the address.
458
5f16ca82
TF
459TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
460
dae9d94e 461NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 462 log files in place. Contributed by Roberto Lima.
dae9d94e 463
7d9f747b 464NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 465
06864c44
TF
466TF/03 Bugzilla 615: When checking the local_parts router precondition
467 after a local_part_suffix or local_part_prefix option, Exim now
468 does not use the address's named list lookup cache, since this
469 contains cached lookups for the whole local part.
470
65a7d8c3 471NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 472 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 473
23510047 474TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 475
7d9f747b 476NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 477
7d8eec3a 478NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 479 Patch provided by Jan Srzednicki.
6c588e74 480
89dec7b6
TF
481TF/05 Leading white space used to be stripped from $spam_report which
482 wrecked the formatting. Now it is preserved.
5f28a6e8 483
a99de90c
TF
484TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
485 that they are available at delivery time.
486
e2803e40
TF
487TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
488
7199e1ee
TF
489TF/08 TLS error reporting now respects the incoming_interface and
490 incoming_port log selectors.
491
e276e04b
TF
492TF/09 Produce a more useful error message if an SMTP transport's hosts
493 setting expands to an empty string.
494
ce552449 495NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 496 Patch provided by Phil Pennock.
ce552449 497
e765a0f1 498NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 499 Patch provided by Richard Godbee.
e765a0f1 500
4f054c63 501NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 502 acl_smtp_notquit, added index entry.
4f054c63 503
7d9f747b
PP
504NM/09 Bugzilla 787: Potential buffer overflow in string_format.
505 Patch provided by Eugene Bujak.
24c929a2 506
7d9f747b
PP
507NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
508 accept(). Patch provided by Maxim Dounin.
cf73943b 509
b52bc06e 510NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 511 Patch provided by Phil Pennock.
b52bc06e 512
447de4b0
NM
513NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
514
4c69d561 515NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 516 Patch provided by Brad "anomie" Jorsch.
4c69d561 517
d5c39246 518NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 519 Patch provided by Dean Brooks.
9b989985 520
0b23848a
TK
521TK/05 Add native DKIM support (does not depend on external libraries).
522
8f3414a1 523NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 524 Patch provided by Graeme Fowler.
e2aacdfd 525
fb6f955d
NM
526NM/16 Bugzilla 851: Documentation example syntax fix.
527
528NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 529
7d9f747b
PP
530NM/18 Bugzilla 894: Fix issue with very long lines including comments in
531 lsearch.
dbb0bf41 532
7d9f747b
PP
533NM/19 Bugzilla 745: TLS version reporting.
534 Patch provided by Phil Pennock.
f3766eb5 535
7d9f747b
PP
536NM/20 Bugzilla 167: bool: condition support.
537 Patch provided by Phil Pennock.
36f12725 538
7d9f747b
PP
539NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
540 clients. Patch provided by Phil Pennock.
e6060e2c 541
7d9f747b
PP
542NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
543 Patch provided by Brad "anomie" Jorsch.
5eb690a1 544
7d9f747b
PP
545NM/23 Bugzilla 687: Fix misparses in eximstats.
546 Patch provided by Heiko Schlittermann.
d5c13d66 547
7d9f747b
PP
548NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
549 Patch provided by Heiko Schlittermann.
b2335c0b 550
7d9f747b 551NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 552 plus update to original patch.
f4cd9433 553
7d9f747b 554NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 555
7d9f747b
PP
556NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
557 Patch provided by David Brownlee.
8dc71ab3 558
7d9f747b 559NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 560
7d9f747b 561NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 562
7d9f747b 563NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 564
7d9f747b 565NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 566
17792b53 567NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 568 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 569
7d9f747b
PP
570NM/33 Bugzilla 898: Transport filter timeout fix.
571 Patch by Todd Rinaldo.
52383f8f 572
7d9f747b
PP
573NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
574 Patch by Serge Demonchaux.
5ca6d115 575
7d9f747b
PP
576NM/35 Bugzilla 39: Base64 decode bug fixes.
577 Patch by Jakob Hirsch.
baee9eee 578
7d9f747b 579NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 580
7d9f747b 581NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 582
7d9f747b 583NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 584
7d9f747b 585NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 586
deafd5b3 587
47db1125
NM
588Exim version 4.69
589-----------------
590
4b3504d0
TK
591TK/01 Add preliminary DKIM support. Currently requires a forked version of
592 ALT-N's libdkim that I have put here:
593 http://duncanthrax.net/exim-experimental/
594
595 Note to Michael Haardt: I had to rename some vars in sieve.c. They
596 were called 'true' and it seems that C99 defines that as a reserved
597 keyword to be used with 'bool' variable types. That means you could
598 not include C99-style headers which use bools without triggering
599 build errors in sieve.c.
600
81ea09ca
NM
601NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
602 as mailq or other aliases. Changed the --help handling significantly
603 to do whats expected. exim_usage() emits usage/help information.
604
f13cddcb
SC
605SC/01 Added the -bylocaldomain option to eximstats.
606
7d9f747b 607NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 608
7d9f747b 609NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 610
7d9f747b 611NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
612
613
eb4c0de6
PH
614Exim version 4.68
615-----------------
616
617PH/01 Another patch from the Sieve maintainer.
618
6a3bceb1
PH
619PH/02 When an IPv6 address is converted to a string for single-key lookup
620 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
621 dots are used instead of colons so that keys in lsearch files need not
622 contain colons. This was done some time before quoting was made available
623 in lsearch files. However, iplsearch files do require colons in IPv6 keys
624 (notated using the quote facility) so as to distinguish them from IPv4
625 keys. This meant that lookups for IP addresses in host lists did not work
626 for iplsearch lookups.
627
628 This has been fixed by arranging for IPv6 addresses to be expressed with
629 colons if the lookup type is iplsearch. This is not incompatible, because
630 previously such lookups could never work.
631
632 The situation is now rather anomolous, since one *can* have colons in
633 ordinary lsearch keys. However, making the change in all cases is
634 incompatible and would probably break a number of configurations.
635
2e30fa9d
TK
636TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
637 version.
638
0806a9c5
MH
639MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
640 conversion specification without a maximum field width, thereby enabling
641 a rogue spamd server to cause a buffer overflow. While nobody in their
642 right mind would setup Exim to query an untrusted spamd server, an
643 attacker that gains access to a server running spamd could potentially
644 exploit this vulnerability to run arbitrary code as the Exim user.
645
ae276964
TK
646TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
647 $primary_hostname instead of what libspf2 thinks the hosts name is.
648
0f2cbd1b
MH
649MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
650 a directory entry by the name of the lookup key. Previously, if a
651 symlink pointed to a non-existing file or a file in a directory that
652 Exim lacked permissions to read, a lookup for a key matching that
653 symlink would fail. Now it is enough that a matching directory entry
654 exists, symlink or not. (Bugzilla 503.)
655
2b85bce7
PH
656PH/03 The body_linecount and body_zerocount variables are now exported in the
657 local_scan API.
658
93655c46
PH
659PH/04 Added the $dnslist_matched variable.
660
6c512171
PH
661PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
662 This means they are set thereafter only if the connection becomes
663 encrypted.
664
665PH/06 Added the client_condition to authenticators so that some can be skipped
666 by clients under certain conditions.
667
aa6dc513
PH
668PH/07 The error message for a badly-placed control=no_multiline_responses left
669 "_responses" off the end of the name.
670
a96603a0
PH
671PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
672
8f240103
PH
673PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
674 (without spaces) instead of just copying the configuration text.
675
676PH/10 Added the /noupdate option to the ratelimit ACL condition.
677
d677b2f2
PH
678PH/11 Added $max_received_linelength.
679
d52120f2
PH
680PH/12 Added +ignore_defer and +include_defer to host lists.
681
64f2600a
PH
682PH/13 Installed PCRE version 7.2. This needed some changes because of the new
683 way in which PCRE > 7.0 is built.
684
8669f003
PH
685PH/14 Implemented queue_only_load_latch.
686
a4dc33a8
PH
687PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
688 MAIL command. The effect was to mangle the value on 64-bit systems.
689
d6a60c0f
PH
690PH/16 Another patch from the Sieve maintainer.
691
8f128379
PH
692PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
693
8932dffe
PH
694PH/18 If a system quota error occurred while trying to create the file for
695 a maildir delivery, the message "Mailbox is full" was not appended to the
696 bounce if the delivery eventually timed out. Change 4.67/27 below applied
697 only to a quota excession during the actual writing of the file.
d6a60c0f 698
ddea74fa 699PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
700 characters?) which causes problems in log lines. The DN values are now
701 passed through string_printing() before being added to log lines.
702
ddea74fa 703PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
704 and InterBase are left for another time.)
705
ddea74fa
PH
706PH/21 Added message_body_newlines option.
707
ce9f225c
PH
708PH/22 Guard against possible overflow in moan_check_errorcopy().
709
19897d52
PH
710PH/23 POSIX allows open() to be a macro; guard against that.
711
bc64a74d
PH
712PH/24 If the recipient of an error message contained an @ in the local part
713 (suitably quoted, of course), incorrect values were put in $domain and
714 $local_part during the evaluation of errors_copy.
715
eb4c0de6 716
b4ed4da0
PH
717Exim version 4.67
718-----------------
719
22ad45c9
MH
720MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
721 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
722 Jan Srzednicki.
723
b4ed4da0
PH
724PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
725 issue a MAIL command.
726
431b7361
PH
727PH/02 In an ACL statement such as
728
729 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
730
731 if a client was not listed at all, or was listed with a value other than
732 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
733 the condition was not true (as it should be), so access was not denied.
734 The bug was that the ! inversion was incorrectly passed on to the second
735 item. This has been fixed.
736
737PH/03 Added additional dnslists conditions == and =& which are different from
738 = and & when the dns lookup returns more than one IP address.
739
83da1223
PH
740PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
741 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
742
54fc8428
PH
743PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
744 FSYNC, which compiles an option called disable_fsync that allows for
745 bypassing fsync(). The documentation is heavily laced with warnings.
746
34c5e8dd
SC
747SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
748
bbe15da8
PH
749PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
750 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
751 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
752 including adding "make clean"; (3) Added -fPIC when compiling the test
753 dynamically loaded module, to get rid of a warning.
754
0e8a9471
MH
755MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
756 message fails, move_frozen_messages = true and ignore_bounce_errors_after
757 = 0s. The bug is otherwise harmless.
758
f0872424
PH
759PH/07 There was a bug in the dovecot authenticator such that the value of
760 $auth1 could be overwritten, and so not correctly preserved, after a
761 successful authentication. This usually meant that the value preserved by
762 the server_setid option was incorrect.
763
b01dd148
PH
764PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
765
6bf342e1
PH
766PH/09 Installed PCRE release 7.0.
767
273f34d0
PH
768PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
769 run for batched SMTP input. It is now run at the start of every message
770 in the batch. While fixing this I discovered that the process information
771 (output by running exiwhat) was not always getting set for -bs and -bS
772 input. This is fixed, and it now also says "batched" for BSMTP.
773
cf8b11a5
PH
774PH/11 Added control=no_pipelining.
775
41c7c167
PH
776PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
777 patch, slightly modified), and move the expansion of helo_data till after
778 the connection is made in the smtp transport (so it can use these
779 values).
780
9c57cbc0
PH
781PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
782
f3f065bb
PH
783PH/14 Added log_selector = +pid.
784
047bdd8c
PH
785PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
786
0ce9abe6
PH
787PH/16 Add ${if forany and ${if forall.
788
0e22dfd1
PH
789PH/17 Added dsn_from option to vary the From: line in DSNs.
790
4c590bd1
PH
791PH/18 Flush SMTP output before performing a callout, unless control =
792 no_callout_flush is set.
793
09945f1e
PH
794PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
795 was true (the default) a successful delivery failed to delete the retry
796 item, thus causing premature timeout of the address. The bug is now
797 fixed.
798
c51b8e75
PH
799PH/20 Added hosts_avoid_pipelining to the smtp transport.
800
e28326d8
PH
801PH/21 Long custom messages for fakedefer and fakereject are now split up
802 into multiline reponses in the same way that messages for "deny" and
803 other ACL rejections are.
804
75b1493f
PH
805PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
806 with slight modification.
807
7c5214ec
PH
808PH/23 Applied sieve patches from the maintainer "tracking the latest notify
809 draft, changing the syntax and factoring some duplicate code".
810
4311097e
PH
811PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
812 for deliveries of the second and subsequent messages over the same SMTP
813 connection.
814
29f89cad
PH
815PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
816 ${reduce, with only minor "tidies".
817
5e687460
SC
818SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
819
c3611384
PH
820PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
821 expansion side effects.
822
5a11a7b4
PH
823PH/27 When a message times out after an over-quota error from an Exim-imposed
824 quota, the bounce message says "mailbox is full". This message was not
825 being given when it was a system quota that was exceeded. It now should
826 be the same.
827
0e20aff9
MH
828MH/03 Made $recipients available in local_scan(). local_scan() already has
829 better access to the recipient list through recipients_list[], but
830 $recipients can be useful in postmaster-provided expansion strings.
831
ca86f471
PH
832PH/28 The $smtp_command and $smtp_command_argument variables were not correct
833 in the case of a MAIL command with additional options following the
834 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
835 were accidentally chopped off.
836
a14e5636
PH
837PH/29 SMTP synchronization checks are implemented when a command is read -
838 there is a check that no more input is waiting when there shouldn't be
839 any. However, for some commands, a delay in an ACL can mean that it is
840 some time before the response is written. In this time, more input might
841 arrive, invalidly. So now there are extra checks after an ACL has run for
842 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
843 pipelining has not been advertised.
844
ec95d1a6
PH
845PH/30 MH's patch to allow iscntrl() characters to be list separators.
846
42855d71
PH
847PH/31 Unlike :fail:, a custom message specified with :defer: was not being
848 returned in the SMTP response when smtp_return_error_details was false.
849 This has been fixed.
850
57c2c631
PH
851PH/32 Change the Dovecot authenticator to use read() and write() on the socket
852 instead of the C I/O that was originally supplied, because problems were
853 reported on Solaris.
854
58c01c94
PH
855PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
856 Exim which did not show up earlier: it was assuming that a call to
857 SSL_CTX_set_info_callback() might give an error value. In fact, there is
858 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
859 was a macro that became an assignment, so it seemed to work. This has
860 changed to a proper function call with a void return, hence the compile
861 error. Exim's code has been fixed.
862
dee5a20a
PH
863PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
864 cpus.
865
d2ee6114
PH
866PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
867
b2d5182b
PH
868PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
869
79749a79
PH
870PH/37 If a message is not accepted after it has had an id assigned (e.g.
871 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
872 "Completed" line in the log. When some messages of this type were
873 selected by exigrep, they were listed as "not completed". Others were
874 picked up by some special patterns. I have improved the selection
875 criteria to be more general.
79749a79 876
c456d9bb
PH
877PH/38 The host_find_failed option in the manualroute router can now be set
878 to "ignore", to completely ignore a host whose IP address cannot be
879 found. If all hosts are ignored, the behaviour is controlled by the new
880 host_all_ignored option.
881
cd9868ec
PH
882PH/39 In a list of hosts for manualroute, if one item (either because of multi-
883 homing or because of multiple MX records with /mx) generated more than
884 one IP address, and the following item turned out to be the local host,
885 all the secondary addresses of the first item were incorrectly removed
886 from the list, along with the local host and any following hosts (which
887 is what is supposed to happen).
888
ebeaf996
PH
889PH/40 When Exim receives a message, it writes the login name, uid, and gid of
890 whoever called Exim into the -H file. In the case of the daemon it was
891 behaving confusingly. When first started, it used values for whoever
892 started the daemon, but after a SIGHUP it used the Exim user (because it
893 calls itself on a restart). I have changed the code so that it now always
894 uses the Exim user.
895
2679d413
PH
896PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
897 message are rejected with the same error (e.g. no authentication or bad
898 sender address), and a DATA command is nevertheless sent (as can happen
899 with PIPELINING or a stupid MUA), the error message that was given to the
900 RCPT commands is included in the rejection of the DATA command. This is
901 intended to be helpful for MUAs that show only the final error to their
902 users.
903
84024b72
PH
904PH/42 Another patch from the Sieve maintainer.
905
8005d38e
SC
906SC/02 Eximstats - Differentiate between permanent and temporary rejects.
907 Eximstats - Fixed some broken HTML links and added missing column headers
908 (Jez Hancock).
909 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
910 columns for Rejects, Temp Rejects, Ham, and Spam rows.
911
3298c6c6
SC
912SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
913
a43a27c5
PH
914PH/43 Yet another patch from the Sieve maintainer.
915
58eb016e 916PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
917 the response to the final '.' that terminates a message, but only in the
918 case where the client has not sent further data following the '.'
919 (unfortunately, this is allowed). However, in many cases there won't be
920 any further data because there won't be any more messages to send. A call
921 to select() can be used: if it shows that the input is "ready", there is
922 either input waiting, or the socket has been closed. An attempt to read
923 the next input character can distinguish the two cases. Previously, Exim
58eb016e 924 would have sent an OK response which the client would never have see.
563b63fa
PH
925 This could lead to message repetition. This fix should cure that, at
926 least in a lot of common cases.
58eb016e 927
b43a74ea
PH
928PH/45 Do not advertise STARTTLS in response to HELP unless it would be
929 advertised in response to EHLO.
930
b4ed4da0 931
5dd1517f
PH
932Exim version 4.66
933-----------------
934
935PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
936 fixed by 4.65/MH/01 (is this a record?) are fixed:
937
938 (i) An empty string was always treated as zero by the numeric comparison
939 operators. This behaviour has been restored.
940
941 (ii) It is documented that the numeric comparison operators always treat
942 their arguments as decimal numbers. This was broken in that numbers
943 starting with 0 were being interpreted as octal.
944
945 While fixing these problems I realized that there was another issue that
946 hadn't been noticed. Values of message_size_limit (both the global option
947 and the transport option) were treated as octal if they started with 0.
948 The documentation was vague. These values are now always treated as
949 decimal, and I will make that clear in the documentation.
950
951
93cfa765
TK
952Exim version 4.65
953-----------------
954
955TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
956 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
957 versions. (#438)
958
d6066548
MH
959MH/01 Don't check that the operands of numeric comparison operators are
960 integers when their expansion is in "skipping" mode (fixes bug
961 introduced by 4.64-PH/07).
962
4362ff0d
PH
963PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
964 child addresses, Exim now panics and dies. Previously, because the count
965 is held in a short int, deliveries were likely to be lost. As such a
966 large number of recipients for a single message is ridiculous
967 (performance will be very, very poor), I have chosen to impose a limit
968 rather than extend the field.
969
93cfa765 970
944e9e9c
TF
971Exim version 4.64
972-----------------
aa41d2de 973
21d74bd9
TK
974TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
975 leftover -K file (the existence of which was triggered by #402).
976 While we were at it, introduced process PID as part of the -K
977 filename. This should rule out race conditions when creating
978 these files.
979
980TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
981 processing considerably. Previous code took too long for large mails,
982 triggering a timeout which in turn triggers #401.
983
984TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
985 in the DK code in transports.c. sendfile() is not really portable,
986 hence the _LINUX specificness.
944e9e9c
TF
987
988TF/01 In the add_headers option to the mail command in an Exim filter,
989 there was a bug that Exim would claim a syntax error in any
990 header after the first one which had an odd number of characters
991 in the field name.
992
2b1c6e3a
PH
993PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
994 callout verification, Exim cached a "reject" for the entire domain. This
995 is correct for most verifications, but it is not correct for a recipient
996 verification with use_sender or use_postmaster set, because in that case
997 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
998 case of MAIL FROM:<> rejection from other early rejections (e.g.
999 rejection of HELO). When verifying a recipient using a non-null MAIL
1000 address, the cache is ignored if it shows MAIL FROM:<> rejection.
1001 Whatever the result of the callout, the value of the domain cache is
1002 left unchanged (for any other kind of callout, getting as far as trying
1003 RCPT means that the domain itself is ok).
1004
1f872c80
PH
1005PH/02 Tidied a number of unused variable and signed/unsigned warnings that
1006 gcc 4.1.1 threw up.
1007
1008PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1009 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1010 session, the daemon ignores ECONNECT errors and logs others; it now
1011 ignores EPIPE as well.
1012
d203e649
PH
1013PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1014 (quoted-printable decoding).
1015
cc2ed8f7 1016PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 1017 later the small subsequent patch to fix an introduced bug.
f951fd57 1018
ddfcd446
PH
1019PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1020
d45b1de8
PH
1021PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1022
1023PH/08 An error is now given if message_size_limit is specified negative.
1024
38a0a95f 1025PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 1026 to be given (somewhat) arbitrary names.
38a0a95f 1027
a2405d83
JJ
1028JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1029 in 4.64-PH/09.
1030
1031JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1032 miscellaneous code fixes
1033
6ea85e9a
PH
1034PH/10 Added the log_reject_target ACL modifier to specify where to log
1035 rejections.
1036
26da7e20
PH
1037PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1038 hostname. This is wrong, because it relates to the incoming message (and
1039 probably the interface on which it is arriving) and not to the outgoing
1040 callout (which could be using a different interface). This has been
1041 changed to use the value of the helo_data option from the smtp transport
1042 instead - this is what is used when a message is actually being sent. If
1043 there is no remote transport (possible with a router that sets up host
1044 addresses), $smtp_active_hostname is used.
6ea85e9a 1045
14aa5a05 1046PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 1047 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
1048 (a) The code assumed that strncpy() returns a negative number on buffer
1049 overflow, which isn't the case. Replaced with Exim's string_format()
1050 function.
1051 (b) There were several signed/unsigned issues. I just did the minimum
1052 hacking in of casts. There is scope for a larger refactoring.
1053 (c) The code used strcasecmp() which is not a standard C function.
1054 Replaced with Exim's strcmpic() function.
1055 (d) The code set only $1; it now sets $auth1 as well.
1056 (e) A simple test gave the error "authentication client didn't specify
1057 service in request". It would seem that Dovecot has changed its
1058 interface. Fortunately there's a specification; I followed it and
1059 changed what the client sends and it appears to be working now.
1060
ff75a1f7
PH
1061PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1062 decoding.
1063
e6f6568e
PH
1064PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1065 address A is aliased to B and C, where B exists and C does not. Without
1066 -v the output is "A verified" because verification stops after a
1067 successful redirection if more than one address is generated. However,
1068 with -v the child addresses are also verified. Exim was outputting "A
1069 failed to verify" and then showing the successful verification for C,
1070 with its parentage. It now outputs "B failed to verify", showing B's
1071 parentage before showing the successful verification of C.
1072
d6f6e0dc
PH
1073PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1074 look up a TXT record in a specific list after matching in a combined
1075 list.
1076
322050c2
PH
1077PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1078 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1079 they consult the DNS. I had assumed they would set it the way they
1080 wanted; and indeed my experiments on Linux seem to show that in some
1081 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1082 To be on the safe side, however, I have now made the interface to
1083 host_find_byname() similar to host_find_bydns(), with an argument
1084 containing the DNS resolver options. The host_find_byname() function now
1085 sets these options at its start, just as host_find_bydns() does. The smtp
1086 transport options dns_qualify_single and dns_search_parents are passed to
1087 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1088 of host_find_byname() use the default settings of RES_DEFNAMES
1089 (qualify_single) but not RES_DNSRCH (search_parents).
1090
08955dd3
PH
1091PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1092 spool_read_header() do less string testing, by means of a preliminary
1093 switch on the second character of optional "-foo" lines. (This is
1094 overdue, caused by the large number of possibilities that now exist.
1095 Originally there were few.) While I was there, I also converted the
1096 str(n)cmp tests so they don't re-test the leading "-" and the first
1097 character, in the hope this might squeeze out yet more improvement.
1098
1eccaa59
PH
1099PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1100 flag allowing group syntax was set by the header_syntax check but not
1101 turned off, possible causing trouble later; (2) The flag was not being
1102 set at all for the header_verify test, causing "group"-style headers to
1103 be rejected. I have now set it in this case, and also caused header_
1104 verify to ignore an empty address taken from a group. While doing this, I
1105 came across some other cases where the code for allowing group syntax
1106 while scanning a header line wasn't quite right (mostly, not resetting
1107 the flag correctly in the right place). These bugs could have caused
1108 trouble for malformed header lines. I hope it is now all correct.
1109
602e59e5
PH
1110PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1111 with the "reply" argument non-NULL. The code, however (which originally
1112 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1113 but it didn't always do it. This confused somebody who was copying the
1114 code for some other use. I have removed all the tests.
1115
411ef850
PH
1116PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1117 feature that was used to support insecure browsers during the U.S. crypto
1118 embargo. It requires special client support, and Exim is probably the
1119 only MTA that supported it -- and would never use it because real RSA is
1120 always available. This code has been removed, because it had the bad
1121 effect of slowing Exim down by computing (never used) parameters for the
1122 RSA_EXPORT functionality.
1123
7befa435
PH
1124PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1125 authenticator to fail if there's a tab character in the incoming data
1126 (there should never be unless someone is messing about, as it's supposed
1127 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1128 if the connection is using TLS or if the remote IP is the same as the
1129 local IP, and the "valid-client-cert option" if a client certificate has
1130 been verified.
1131
48da4259 1132PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1133 authenticators. This can be used for authorization after authentication
1134 succeeds. (In the case of plaintext, it servers for both authentication
1135 and authorization.)
1136
48da4259
PH
1137PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1138 if any retry times were supplied.
1139
d1d5595c
PH
1140PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1141 connection, where there is no client IP address to check. In this
1142 situation, the verify now always succeeds.
1143
0ef732d9
PH
1144PH/25 Applied John Jetmore's -Mset patch.
1145
328895cc
PH
1146PH/26 Added -bem to be like -Mset, but loading a message from a file.
1147
fd700877
PH
1148PH/27 In a string expansion for a processed (not raw) header when multiple
1149 headers of the same name were present, leading whitespace was being
1150 removed from all of them, but trailing whitespace was being removed only
1151 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1152 before concatenation. Completely empty headers in a concatenation (as
1153 before) are ignored.
fd700877 1154
8dce1a6f
PH
1155PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1156 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1157
17af4a17
PH
1158PH/29 [Removed. This was a change that I later backed out, and forgot to
1159 correct the ChangeLog entry (that I had efficiently created) before
1160 committing the later change.]
f6c332bd
PH
1161
1162PH/30 Exim was sometimes attempting to deliver messages that had suffered
1163 address errors (4xx response to RCPT) over the same connection as other
1164 messages routed to the same hosts. Such deliveries are always "forced",
1165 so retry times are not inspected. This resulted in far too many retries
1166 for the affected addresses. The effect occurred only when there were more
1167 hosts than the hosts_max_try setting in the smtp transport when it had
1168 the 4xx errors. Those hosts that it had tried were not added to the list
1169 of hosts for which the message was waiting, so if all were tried, there
1170 was no problem. Two fixes have been applied:
1171
1172 (i) If there are any address or message errors in an SMTP delivery, none
1173 of the hosts (tried or untried) are now added to the list of hosts
1174 for which the message is waiting, so the message should not be a
1175 candidate for sending over the same connection that was used for a
1176 successful delivery of some other message. This seems entirely
1177 reasonable: after all the message is NOT "waiting for some host".
1178 This is so "obvious" that I'm not sure why it wasn't done
1179 previously. Hope I haven't missed anything, but it can't do any
1180 harm, as the worst effect is to miss an optimization.
1181
1182 (ii) If, despite (i), such a delivery is accidentally attempted, the
1183 routing retry time is respected, so at least it doesn't keep
1184 hammering the server.
1185
c1114884
PH
1186PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1187 in ${readsocket because some servers need this prod.
1188
7a0743eb
PH
1189PH/32 Added some extra debug output when updating a wait-xxx database.
1190
0d85fa3f
PH
1191PH/33 The hint "could be header name not terminated by colon", which has been
1192 given for certain expansion errors for a long time, was not being given
1193 for the ${if def:h_colon_omitted{... case.
1194
1bf43b78
PH
1195PH/34 The spec says: "With one important exception, whenever a domain list is
1196 being scanned, $domain contains the subject domain." There was at least
1197 one case where this was not true.
1198
520de300
PH
1199PH/35 The error "getsockname() failed: connection reset by peer" was being
1200 written to the panic log as well as the main log, but it isn't really
1201 panic-worthy as it just means the connection died rather early on. I have
1202 removed the panic log writing for the ECONNRESET error when getsockname()
1203 fails.
1204
48c7f9e2
PH
1205PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1206 runs only) independently of the message's sender address. This meant
1207 that, if the 4xx error was in fact related to the sender, a different
1208 message to the same recipient with a different sender could confuse
1209 things. In particualar, this can happen when sending to a greylisting
1210 server, but other circumstances could also provoke similar problems.
1211 I have changed the default so that the retry time for these errors is now
1212 based a combination of the sender and recipient addresses. This change
1213 can be overridden by setting address_retry_include_sender=false in the
1214 smtp transport.
1215
99ea1c86
PH
1216PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1217 remote server are returned as part of bounce messages. This was not
1218 happening for LMTP over a pipe (the lmtp transport), but now it is the
1219 same for both kinds of LMTP.
1220
a2042e78
PH
1221PH/38 Despite being documented as not happening, Exim was rewriting addresses
1222 in header lines that were in fact CNAMEs. This is no longer the case.
1223
4fbcfc2e
PH
1224PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1225 and queue runs started by the daemon processed all messages. This has
1226 been fixed so that -R and -S can now usefully be given with -q<time>.
1227
aa41d2de
PH
1228PH/40 Import PCRE release 6.7 (fixes some bugs).
1229
af561417
PH
1230PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1231
3cc66b45
PH
1232PH/42 Give an error if -q is specified more than once.
1233
194cc0e4
PH
1234PH/43 Renamed the variables $interface_address and $interface_port as
1235 $received_ip_address and $received_port, to make it clear that these
1236 values apply to message reception, and not to the outgoing interface when
1237 a message is delivered. (The old names remain recognized, of course.)
1238
a401ddaa
PH
1239PH/44 There was no timeout on the connect() call when using a Unix domain
1240 socket in the ${readsocket expansion. There now is.
1241
4e88a19f
PH
1242PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1243 be meaningful with "accept".
1244
d7d7b289
SC
1245SC/01 Eximstats V1.43
1246 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1247
1248SC/02 Eximstats V1.44
1249 Use a glob alias rather than an array ref in the generated
1250 parser. This improves both readability and performance.
1251
1252SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1253 Collect SpamAssassin and rejection statistics.
1254 Don't display local sender or destination tables unless
1255 there is data to show.
1256 Added average volumes into the top table text output.
1257
1258SC/04 Eximstats V1.46
1259 Collect data on the number of addresses (recipients)
1260 as well as the number of messages.
1261
1262SC/05 Eximstats V1.47
1263 Added 'Message too big' to the list of mail rejection
1264 reasons (thanks to Marco Gaiarin).
1265
1266SC/06 Eximstats V1.48
1267 Mainlog lines which have GMT offsets and are too short to
1268 have a flag are now skipped.
1269
1270SC/07 Eximstats V1.49 (Alain Williams)
1271 Added the -emptyok flag.
1272
1273SC/08 Eximstats V1.50
1274 Fixes for obtaining the IP address from reject messages.
1275
0ea2a468
JJ
1276JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1277 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1278 whitesspace changes from 4.64-PH/27
1279
1280JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1281 match 4.64-PH/13
1282
1283JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1284 are found, allow negative numbers in numeric criteria)
1285
1286JJ/06 exipick.20061117.2, added new $message_body_missing variable
1287
1288JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1289 to match changes made in 4.64-PH/43
1290
8a10f5a4
PH
1291PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1292
30e18802
PH
1293PH/47 Put in an explicit test for a DNS lookup of an address record where the
1294 "domain" is actually an IP address, and force a failure. This locks out
1295 those revolvers/nameservers that support "A-for-A" lookups, in
1296 contravention of the specifications.
1297
55728a4f
PH
1298PH/48 When a host name was looked up from an IP address, and the subsequent
1299 forward lookup of the name timed out, the host name was left in
1300 $sender_host_name, contrary to the specification.
d7d7b289 1301
d7837193
PH
1302PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1303 restricted to single-key lookups, Exim was not diagnosing an error if
1304 * or *@ was used with a query-style lookup.
1305
87054a31
PH
1306PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1307
ea2c01d2
MH
1308MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1309 long ago, but noone interested enough thought of it. Let's just say that
1310 the "1.1" means that there are some new functions that weren't there at
1311 some point in the past.
1312
e4fa6968
PH
1313PH/51 Error processing for expansion failure of helo_data from an smtp
1314 transport during callout processing was broken.
1315
56f5d9bd
PH
1316PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1317 tested/used via the -bh/-bhc/-bs options.
1318
922e1c28
PH
1319PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1320 bug, fixed in subsequent PCRE releases).
1321
21eb6e72
PH
1322PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1323 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1324
a0540757
PH
1325PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1326
944e9e9c 1327
478be7b0
SC
1328Exim version 4.63
1329-----------------
1330
1331SC/01 Use a glob alias rather than an array ref in eximstats generated
1332 parser. This improves both readability and performance.
1333
1334SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1335 Don't display local sender or destination tables in eximstats unless
1336 there is data to show.
1337 Added average volumes into the eximstats top table text output.
1338
1339SC/03 Collect data on the number of addresses (recipients) as well
1340 as the number of messages in eximstats.
1341
2b965a65
TF
1342TF/01 Correct an error in the documentation for the redirect router. Exim
1343 does (usually) call initgroups() when daemonizing.
478be7b0 1344
45b91596
PH
1345TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1346 with consistent privilege compared to when running as a daemon.
478be7b0 1347
c59f5781
TF
1348TF/03 Note in the spec that $authenticated_id is not set for local
1349 submissions from trusted users.
1350
90fc3069
TF
1351TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1352 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1353
6083aca0
TF
1354TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1355 by adding some example configuration directives to the default
1356 configuration file. A little bit of work is required to uncomment the
1357 directives and define how usernames and passwords are checked, but
1358 there is now a framework to start from.
1359
765b530f
PH
1360PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1361 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1362 without this. I don't know how relevant this is to other LDAP libraries.
1363
4e167a8c
PH
1364PH/02 Add the verb name to the "unknown ACL verb" error.
1365
4608d683
PH
1366PH/03 Magnus Holmgren's patch for filter_prepend_home.
1367
b8dc3e4a
PH
1368PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1369
5418e93b
PH
1370PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1371 directory not expanded when it should be if an expanded home directory
1372 was set for the address (which is overridden by the transport).
1373
b4a9bda2
PH
1374PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1375 libradius.
1376
45b91596
PH
1377PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1378 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1379 because it is too late at that time, and has no effect.
1380
5547e2c5
PH
1381PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1382 security issue with \' (bugzilla #107). I could not use the
1383 PQescapeStringConn() function, because it needs a PGconn value as one of
1384 its arguments.
1385
dbcef0ea
PH
1386PH/08 When testing addresses using -bt, indicate those final addresses that
1387 are duplicates that would not cause an additional delivery. At least one
1388 person was confused, thinking that -bt output corresponded to deliveries.
1389 (Suppressing duplicates isn't a good idea as you lose the information
1390 about possibly different redirections that led to the duplicates.)
1391
25257489
PH
1392PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1393 systems where poll() doesn't work, in particular OS X.
1394
c816d124
PH
1395PH/10 Added more information to debugging output for retry time not reached.
1396
a9ccd69a
PH
1397PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1398 operations in malware.c.
1399
75fa1910
PH
1400PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1401 signatures.
1402
a7d7aa58
PH
1403PH/13 If write_rejectlog was set false when logging was sent to syslog with
1404 syslog_duplication set false, log lines that would normally be written
1405 both the the main log and to the reject log were not written to syslog at
1406 all.
1407
42119b09
PH
1408PH/14 In the default configuration, change the use of "message" in ACL warn
1409 statements to "add_header".
1410
41609df5
PH
1411PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1412 not followed by a command (e.g. "seen endif").
1413
a5bd321b
PH
1414PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1415 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1416 latter.
1417
e85a7ad5 1418PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1419 so that it is now:
1420
e85a7ad5
PH
1421 ${if or { \
1422 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1423 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1424 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1425 }{no}{yes}}
1426
e85a7ad5
PH
1427 The Auto-Submitted: and various List- headers are standardised, whereas I
1428 don't think Precedence: ever was.
5dff5817 1429
d8fe1c03
PH
1430PH/18 Refactored debugging code in route_finduser() to show more information,
1431 in particular, the error code if getpwnam() issues one.
1432
16282d2b
PH
1433PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1434 This is apparently needed in addition to the PH/07 change above to avoid
1435 any possible encoding problems.
1436
35d40a98
PH
1437PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1438 but not after initializing Perl.
1439
034d99ab
PH
1440PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1441 output them only if debugging. By default they are written stderr,
1442 apparently, which is not desirable.
1443
6ec97b1b
PH
1444PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1445 queries.
1446
e22ca4ac
JJ
1447JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1448 --not options
1449
1450JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1451
33d73e3b
PH
1452PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1453 authenticated or an ident call has been made. Suppress the default
1454 values for $authenticated_id and $authenticated_sender (but permit -oMai
1455 and -oMas) when testing with -bh.
1456
9ecb03f3
PH
1457PH/24 Re-jigged the order of the tests in the default configuration so that the
1458 tests for valid domains and recipients precede the DNS black list and CSA
1459 tests, on the grounds that those ones are more expensive.
1460
084efe8d
PH
1461PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1462 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1463 This bug exists in every version of Exim that I still have, right back to
1464 0.12.
1465
366fc9f0
PH
1466PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1467 However, an attempt to turn on case-sensitivity in a regex key by
1468 including (?-i) didn't work because the subject string was already
1469 lowercased, and the effects were non-intuitive. It turns out that a
1470 one-line patch can be used to allow (?-i) to work as expected.
1471
c59f5781 1472
c887c79e
TF
1473Exim version 4.62
1474-----------------
1475
1476TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1477 other effects) broke the use of negated acl sub-conditions.
1478
1cce3af8
PH
1479PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1480 patch).
1481
afb3eaaf
PH
1482PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1483 "Deny" causes Exim to reject the incoming connection with a 554 error.
1484 Unfortunately, if there is a major crisis, such as a disk failure,
1485 tcp-wrappers gives "deny", whereas what one would like would be some
1486 kind of temporary error. A kludge has been added to help with this.
1487 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1488 554 error is used if errno is still zero or contains ENOENT (which occurs
1489 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1490 451 error is used.
1491
e173618b
PH
1492PH/03 Add -lutil to the default FreeBSD LIBS setting.
1493
dd16e114
PH
1494PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1495 errors. Otherwise a message that provokes a temporary error (when other
1496 messages do not) can cause a whole host to time out.
1497
f7fd3850
PH
1498PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1499 addresses were routed directly to files or pipes from a redirect router.
1500 File deliveries just didn't batch; pipe deliveries might have suffered
1501 odd errors.
1502
d87df92c
PH
1503PH/06 A failure to get a lock for a hints database would erroneously always say
1504 "Failed to get write lock", even when it was really a read lock.
1505
7e9f683d
PH
1506PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1507 of 0600. This has been changed to use the value of the lockfile_mode
1508 option (which defaults to 0600).
1509
bfad5236
PH
1510PH/08 Applied small patch from the Sieve maintainer.
1511
01c490df
PH
1512PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1513 folder from quota calculations, a direct delivery into this folder messed
1514 up the contents of the maildirsize file. This was because the regex was
1515 used only to exclude .Trash (or whatever) when the size of the mailbox
1516 was calculated. There was no check that a delivery was happening into an
1517 excluded directory. This bug has been fixed by ignoring all quota
1518 processing for deliveries into excluded directories.
1519
d6629cdc
PH
1520PH/10 Added the maildirfolder_create_regex option to appendfile.
1521
1cce3af8 1522
214e2000
PH
1523Exim version 4.61
1524-----------------
1525
1526PH/01 The code for finding all the local interface addresses on a FreeBSD
1527 system running IPv6 was broken. This may well have applied to all BSD
1528 systems, as well as to others that have similar system calls. The broken
1529 code found IPv4 interfaces correctly, but gave incorrect values for the
1530 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1531 that it would not match correctly against @[] and not recognize the IPv6
1532 addresses as local.
1533
f9daeae0
PH
1534PH/02 The ipliteral router was not recognizing addresses of the form user@
1535 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1536
7e66e54d
PH
1537PH/03 Added disable_ipv6.
1538
c8ea1597
PH
1539PH/04 Changed $reply_address to use the raw form of the headers instead of the
1540 decoded form, because it is most often used to construct To: headers
1541 lines in autoreplies, and the decoded form may well be syntactically
1542 invalid. However, $reply_address has leading white space removed, and all
1543 newlines turned into spaces so that the autoreply transport does not
1544 grumble.
1545
911f6fde
PH
1546PH/05 If group was specified without a user on a router, and no group or user
1547 was specified on a transport, the group from the router was ignored.
1548
47ca6d6c
PH
1549PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1550 for visible compile-time settings that can be used to change these
1551 numbers, for those that want even more. Backwards compatibility with old
1552 spool files has been maintained. However, going back to a previous Exim
1553 release will lost any variables that are in spool files.
1554
ed0e9820
PH
1555PH/07 Two small changes when running in the test harness: increase delay when
1556 passing a TCP/IP connection to a new process, in case the original
1557 process has to generate a bounce, and remove special handling of
1558 127.0.0.2 (sic), which is no longer necessary.
1559
eff37e47
PH
1560PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1561 be the same on different OS.
1562
1921d2ea
PH
1563PH/09 Moved a debug statement in filter processing to avoid a race problem when
1564 testing.
1565
b3f69ca8
JJ
1566JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1567 whether --show-vars was specified or not
1568
1569JJ/02 exipick: Added support for new ACL variable spool format introduced
1570 in 4.61-PH/06
1571
424a1c63
PH
1572PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1573 syntactically invalid From: or Reply-to: line, and a filter used this to
1574 generate an autoreply, and therefore failed to obtain an address for the
1575 autoreply, Exim could try to deliver to a non-existent relative file
1576 name, causing unrelated and misleading errors. What now happens is that
1577 it logs this as a hard delivery error, but does not attempt to create a
1578 bounce message.
1579
7a100415
PH
1580PH/11 The exinext utility has a -C option for testing purposes, but although
1581 the given file was scanned by exinext itself; it wasn't being passed on
1582 when Exim was called.
1583
19b9dc85
PH
1584PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1585 an end-of-file indication when reading a command response.
1586
309bd837
PH
1587PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1588 compiled. In many other places in Exim, IPv6 addresses are always
1589 recognized, so I have changed this. It also means that IPv4 domain
1590 literals of the form [IPV4:n.n.n.n] are now always recognized.
1591
59e82a2a
PH
1592PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1593 used if the router is not running as root, for example, when verifying at
1594 ACL time, or when using -bh. The debugging output from this situation was
1595 non-existent - all you got was a failure to exec. I have made two
1596 changes:
1597
1598 (a) Failures to set uid/gid, the current directory, or a process leader
1599 in a subprocess such as that created by queryprogram now generate
1600 suitable debugging ouput when -d is set.
1601
1602 (b) The queryprogram router detects when it is not running as root,
1603 outputs suitable debugging information if -d is set, and then runs
1604 the subprocess without attempting to change uid/gid.
1605
9edc04ce
PH
1606PH/15 Minor change to Makefile for building test_host (undocumented testing
1607 feature).
1608
1349e1e5
PH
1609PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1610 additional section of a DNS packet that returns MX or SRV records.
1611 Instead, it always explicitly searches for A/AAAA records. This avoids
1612 major problems that occur when a DNS server includes only records of one
1613 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1614 fixed another bug: if SRV records were looked up and the corresponding
1615 address records were *not* found in the additional section, the port
1616 values from the SRV records were lost.
1617
ea49d0e1
PH
1618PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1619 using the correct key (the original address) when searching the retry
1620 rules in order to find which one to use for generating the retry hint.
1621
064a94c9
PH
1622PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1623 adding the default one. Similarly, if it contains a Reply-To: header, the
1624 errors_reply_to option, if set, is not used.
1625
727071f8
PH
1626PH/19 When calculating a retry time, Exim used to measure the "time since
1627 failure" by looking at the "first failed" field in the retry record. Now
1628 it does not use this if it is later than than the arrival time of the
1629 message. Instead it uses the arrival time. This makes for better
1630 behaviour in cases where some deliveries succeed, thus re-setting the
1631 "first failed" field. An example is a quota failure for a huge message
1632 when small messages continue to be delivered. Without this change, the
1633 "time since failure" will always be short, possible causing more frequent
1634 delivery attempts for the huge message than are intended.
dd16e114 1635 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1636
f78eb7c6
PH
1637PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1638 $1, $2, $3) because the numerical variables can be reset during some
1639 expansion items (e.g. "match"), thereby losing the authentication data.
1640
21c28500
PH
1641PH/21 Make -bV show the size of off_t variables so that the test suite can
1642 decide whether to run tests for quotas > 2G.
1643
1644PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1645 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1646 filecount value is greater than 2G or if a quota value is greater than 2G
1647 on a system where the size of off_t is not greater than 4, a panic error
1648 is given.
1649
1688f43b
PH
1650PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1651 never match. The debug and -bh output now contains an explicit error
1652 message indicating a malformed IPv4 address or mask.
1653
1654PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1655 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1656 PH/23 above applies.
1657
9675b384
PH
1658PH/25 Do not write to syslog when running in the test harness. The only
1659 occasion when this arises is a failure to open the main or panic logs
1660 (for which there is an explicit test).
1661
6a3f1455
PH
1662PH/26 Added the /no_tell option to "control=freeze".
1663
dac79d3e
PH
1664PH/27 If a host name lookup failed very early in a connection, for example, if
1665 the IP address matched host_lookup and the reverse lookup yielded a name
1666 that did not have a forward lookup, an error message of the form "no IP
1667 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1668 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1669
5977a0b3
PH
1670PH/28 An enabling patch from MH: add new function child_open_exim2() which
1671 allows the sender and the authenticated sender to be set when
1672 submitting a message from within Exim. Since child_open_exim() is
1673 documented for local_scan(), the new function should be too.
1674
c91535f3
PH
1675PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1676 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1677 results in an empty string is now treated as unset.
1678
0d46a8c8
PH
1679PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1680
278c6e6c
PH
1681PH/31 Added sender_verify_fail logging option.
1682
2cbb4081
PH
1683PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1684 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1685 tidied the source and removed it altogether.
1686
3eef829e
PH
1687PH/33 When a queue run was abandoned because the load average was too high, a
1688 log line was always written; now it is written only if the queue_run log
1689 selector is set. In addition, the log line for abandonment now contains
1690 information about the queue run such as the pid. This is always present
1691 in "start" and "stop" lines but was omitted from the "abandon" line.
1692
1ab95fa6
PH
1693PH/34 Omit spaces between a header name and the colon in the error message that
1694 is given when verify = headers_syntax fails (if there are lots of them,
1695 the message gets confusing).
1696
230205fc
PH
1697PH/35 Change the default for dns_check_names_pattern to allow slashes within
1698 names, as there are now some PTR records that contain slashes. This check
1699 is only to protect against broken name servers that fall over on strange
1700 characters, so the fact that it applies to all lookups doesn't matter.
1701
75e0e026
PH
1702PH/36 Now that the new test suite is complete, we can remove some of the
1703 special code in Exim that was needed for the old test suite. For example,
1704 sorting DNS records because real resolvers return them in an arbitrary
1705 order. The new test suite's fake resolver always returns records in the
1706 same order.
1707
1708PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1709 bounces) except when queue_only is set, to avoid logging races between
1710 the different processes.
1711
145396a6
PH
1712PH/38 Panic-die if .include specifies a non-absolute path.
1713
3cd34f13
PH
1714PH/39 A tweak to the "H" retry rule from its user.
1715
11121d3d
JJ
1716JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1717 a label. They prevented compilation on older perls.
1718
1719JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1720 a warning to be raised on newish perls.
1721
1722JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1723 on queue. Changes to match documented behaviour of showing count of
1724 messages matching specified criteria.
1725
8def5aaf
PH
1726PH/40 Changed the default ident timeout from 30s to 5s.
1727
929ba01c
PH
1728PH/41 Added support for the use of login_cap features, on those BSD systems
1729 that have them, for controlling the resources used by pipe deliveries.
1730
2632889e
PH
1731PH/42 The content-scanning code uses fopen() to create files in which to put
1732 message data. Previously it was not paying any attention to the mode of
1733 the files. Exim runs with umask(0) because the rest of the code creates
1734 files with open(), and sets the required mode explicitly. Thus, these
1735 files were ending up world-writeable. This was not a big issue, because,
1736 being within the spool directory, they were not world-accessible. I have
1737 created a function called modefopen, which takes an additional mode
1738 argument. It sets umask(777), creates the file, chmods it to the required
1739 mode, then resets the umask. All the relevant calls to fopen() in the
1740 content scanning code have been changed to use this function.
1741
944a9c55
PH
1742PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1743 to 24 hours. This avoids potential overflow problems when processing G
1744 and H retry rules. I suspect nobody ever tinkers with this value.
1745
4a23603b
PH
1746PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1747
4730f942
PH
1748PH/45 When the plaintext authenticator is running as a client, the server's
1749 challenges are checked to ensure they are valid base64 strings. By
1750 default, the authentication attempt is cancelled if an invalid string is
1751 received. Setting client_ignore_invalid_base64 true ignores these errors.
1752 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1753 they are received. Thus, the responses can be made to depend on the
1754 challenges. If an invalid string is ignored, an empty string is placed in
1755 the variable.
1756
30dba1e6
PH
1757PH/46 Messages that are created by the autoreply transport now contains a
1758 References: header, in accordance with RFCs 2822 and 3834.
1759
382afc6b
PH
1760PH/47 Added authenticated_sender_force to the smtp transport.
1761
a86229cf
PH
1762PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1763
50c99ba6
PH
1764PH/49 Installed latest patch from the Sieve maintainer.
1765
d35e429d
PH
1766PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1767 was also set, the appendfile transport was unnecessarily scanning a
1768 directory of message files (e.g. for maildir delivery) to find the count
1769 of files (along with the size), even though it did not need this
1770 information. It now does the scan only if it needs to find either the
1771 size of the count of files.
1772
f90d018c
PH
1773PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1774
75def545
PH
1775PH/52 Two bugs concerned with error handling when the smtp transport is
1776 used in LMTP mode:
1777
1778 (i) Exim was not creating retry information for temporary errors given
1779 for individual recipients after the DATA command when the smtp transport
1780 was used in LMTP mode. This meant that they could be retried too
1781 frequently, and not timed out correctly.
1782
1783 (ii) Exim was setting the flag that allows error details to be returned
1784 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1785 recipients that were returned after the DATA command.
1786
1787PH/53 This is related to PH/52, but is more general: for any failing address,
1788 when detailed error information was permitted to be returned to the
1789 sender, but the error was temporary, then after the final timeout, only
1790 "retry timeout exceeded" was returned. Now it returns the full error as
1791 well as "retry timeout exceeded".
1792
c46782ef
PH
1793PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1794 do this, and (what is worse) MTAs that accept it.
1795
71fafd95
PH
1796PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1797 will now be deprecated.
1798
2c5db4fd
PH
1799PH/56 New os.c-cygwin from the Cygwin maintainer.
1800
9cf6b11a
JJ
1801JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1802 formats (previously only available in exim formats via -bpr, -bpru,
1803 and -bpra. Now also available in native and exiqgrep formats)
1804
1805JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1806 with very large, slow to parse queues
1807
1808JJ/08 exipick: added ! as generic prefix to negate any criteria format
1809
1810JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1811
898d150f
PH
1812PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1813 responses to authentication challenges, though it was showing the
1814 challenges; (ii) I've removed the CR characters from the debug output for
1815 SMTP output lines.
1816
46218253
PH
1817PH/58 Allow for the insertion of a newline as well as a space when a string
1818 is turned into more than one encoded-word during RFC 2047 encoding. The
1819 Sieve code now uses this.
1820
e97957bc
PH
1821PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1822 data_4xx, lost_connection, tls_required.
1823
81e509d7
PH
1824PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1825 message was being sent as an SMTP response.
1826
3d240ff7
PH
1827PH/61 Add -l and -k options to exicyclog.
1828
b37c4101
PH
1829PH/62 When verifying, if an address was redirected to one new address, so that
1830 verification continued, and the new address failed or deferred after
1831 having set something in $address_data, the value of $address_data was not
1832 passed back to the ACL. This was different to the case when no
1833 redirection occurred. The value is now passed back in both cases.
1834
79378e0f
PH
1835PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1836 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1837 use login_cap.h, so on its own it isn't the distinguishing feature. The
1838 new name refers directly to the setclassresources() function.
1839
e49c7bb4
PH
1840PH/65 Added configuration files for NetBSD3.
1841
d114ec46
PH
1842PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1843
f3d7df6c
PH
1844PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1845 is preferred over IPv4.
1846
715ab376
PH
1847PH/68 The bounce_return_message and bounce_return_body options were not being
1848 honoured for bounces generated during the reception of non-SMTP messages.
1849 In particular, this applied to messages rejected by the ACL. This bug has
1850 been fixed. However, if bounce_return_message is true and bounce_return_
1851 body is false, the headers that are returned for a non-SMTP message
1852 include only those that have been read before the error was detected.
1853 (In the case of an ACL rejection, they have all been read.)
1854
6b31b150
PH
1855PH/69 The HTML version of the specification is now built in a directory called
1856 spec_html instead of spec.html, because the latter looks like a path with
1857 a MIME-type, and this confuses some software.
1858
1859PH/70 Catch two compiler warnings in sieve.c.
1860
d515a917
PH
1861PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1862 function verify_get_ident() calls ip_connect() to connect a socket, but
1863 if the "connect()" function timed out, ip_connect() used to close the
1864 socket. However, verify_get_ident() also closes the socket later, and in
1865 between Exim writes to the log, which may get opened at this point. When
1866 the socket was closed in ip_connect(), the log could get the same file
1867 descriptor number as the socket. This naturally causes chaos. The fix is
1868 not to close the socket in ip_connect(); the socket should be closed by
1869 the function that creates it. There was only one place in the code where
1870 this was missing, in the iplookup router, which I don't think anybody now
1871 uses, but I've fixed it anyway.
1872
9b8fadde
PH
1873PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1874 well as to direct DNS lookups. Otherwise the handling of names in host
1875 lists is inconsistent and therefore confusing.
1876
214e2000 1877
5de37277
PH
1878Exim version 4.60
1879-----------------
1880
cc38ddbf
PH
1881PH/01 Two changes to the default runtime configuration:
1882
1883 (1) Move the checks for relay_from_hosts and authenticated clients from
1884 after to before the (commented out) DNS black list checks.
1885
1886 (2) Add control=submission to the relay_from_hosts and authenticated
1887 clients checks, on the grounds that messages accepted by these
1888 statements are most likely to be submissions.
5de37277 1889
72fdd6ae
PH
1890PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1891
1892 (1) Generate an error if the third argument for the ${prvs expansion is
1893 not a single digit.
1894
1895 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1896 string.
1897
1898 (3) Reset the variables that are obtained from the first argument of
1899 ${prvscheck and used in the second argument before leaving the code,
1900 because their memory is reclaimed, so using them afterwards may do
1901 silly things.
1902
1903 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1904 one (it's much easier than Tom thought :-).
1905
1906 (5) Because of (4), we can now allow for the use of $prvscheck_result
1907 inside the third argument.
cb9328de 1908
cb741023
PH
1909PH/03 For some reason, the default setting of PATH when running a command from
1910 a pipe transport was just "/usr/bin". I have changed it to
1911 "/bin:/usr/bin".
1912
f174f16e
PH
1913PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1914 anything to be listed in the output from -bV.
b2f5a032 1915
c25242d7
PH
1916PH/05 When a filter generated an autoreply, the entire To: header line was
1917 quoted in the delivery log line, like this:
1918
1919 => >A.N.Other <ano@some.domain> <original@ddress> ...
1920
1921 This has been changed so that it extracts the operative address. There
1922 may be more than one such address. If so, they are comma-separated, like
1923 this:
1924
1925 => >ano@some.domain,ona@other.domain <original@ddress> ...
1926
82c19f95
PH
1927PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1928 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1929 not being looked up in the rDNS to get a host name, Exim was showing the
1930 IP address twice in Received: lines, even though the IP addresses were
1931 identical. For example:
1932
1933 Received: from [1.2.3.4] (helo=[1.2.3.4])
1934
1935 However, if the real host name was known, it was omitting the HELO data
1936 if it matched the actual IP address. This has been tidied up so that it
1937 doesn't show the same IP address twice.
1938
d7ffbc12
PH
1939PH/07 When both +timestamp and +memory debugging was on, the value given by
1940 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1941 called by the debug printing, thereby overwriting the timestamp buffer.
1942 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1943
9f526266
PH
1944PH/08 When the original message was included in an autoreply transport, it
1945 always said "this is a copy of the message, including all the headers",
1946 even if body_only or headers_only was set. It now gives an appropriate
1947 message.
1948
87fcc8b9
PH
1949PH/09 Applied a patch from the Sieve maintainer which:
1950
1951 o fixes some comments
1952 o adds the (disabled) notify extension core
1953 o adds some debug output for the result of if/elsif tests
1954 o points to the current vacation draft in the documentation
1955 and documents the missing references header update
1956
1957 and most important:
1958
1959 o fixes a bug in processing the envelope test (when testing
1960 multiple envelope elements, the last element determinted the
1961 result)
1962
456682f5
PH
1963PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1964 Electronic Mail") by including:
1965
1966 Auto-submitted: auto-generated
1967
1968 in the messages that it generates (bounce messages and others, such as
1969 warnings). In the case of bounce messages for non-SMTP mesages, there was
1970 also a typo: it was using "Auto_submitted" (underscore instead of
1971 hyphen). Since every message generated by Exim is necessarily in response
1972 to another message, thes have all been changed to:
1973
1974 Auto-Submitted: auto-replied
1975
1976 in accordance with these statements in the RFC:
1977
1978 The auto-replied keyword:
1979
1980 - SHOULD be used on messages sent in direct response to another
1981 message by an automatic process,
1982
1983 - MUST NOT be used on manually-generated messages,
1984
1985 - MAY be used on Delivery Status Notifications (DSNs) and Message
1986 Disposition Notifications (MDNs),
1987
1988 - MUST NOT be used on messages generated by automatic or periodic
1989 processes, except for messages which are automatic responses to
1990 other messages.
1991
3e46c1aa
PH
1992PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1993 to the default Received: header definition.
456682f5 1994
49826d12
PH
1995PH/12 Added log selector acl_warn_skipped (default on).
1996
eba0c039
PH
1997PH/13 After a successful wildlsearch lookup, discard the values of numeric
1998 variables because (a) they are in the wrong storage pool and (b) even if
1999 they were copied, it wouldn't work properly because of the caching.
2000
a0d6ba8a
PH
2001PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
2002 checking when decoding. Apparently there are clients that generate
2003 overlong encoded strings. Why am I not surprised?
2004
f0917727
PH
2005PH/15 If the first argument of "${if match_address" was not empty, but did not
2006 contain an "@" character, Exim crashed. Now it writes a panic log message
2007 and treats the condition as false.
2008
096fee00
PH
2009PH/16 In autoreply, treat an empty string for "once" the same as unset.
2010
024bd3c2
PH
2011PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2012 extension "envelope-auth". The code is finished and in agreement with
2013 other implementations, but there is no documentation so far and in fact,
2014 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2015 not changing the active code.
2016
2017 Print executed "if" and "elsif" statements when debugging is used. This
2018 helps a great deal to understand what a filter does.
2019
2020 Document more things not specified clearly in RFC3028. I had all this
2021 sorted out, when out of a sudden new issues came to my mind. Oops."
2022
df199fec
PH
2023PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2024 (Bugzilla #53).
2025
d27f1df3
PH
2026PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2027 canonical form (as documented). However, after a host name lookup from
2028 the IP address, check_host() was doing a simple string comparison with
2029 addresses acquired from the DNS when checking that the found name did
2030 have the original IP as one of its addresses. Since any found IPv6
2031 addresses are likely to be in abbreviated form, the comparison could
2032 fail. Luckily, there already exists a function for doing the comparison
2033 by converting both addresses to binary, so now that is used instead of
2034 the text comparison.
2035
96776534
PH
2036PH/20 There was another similar case to PH/19, when a complete host name was
2037 given in a host list; looking up its IP address could give an abbreviated
2038 form, whereas the current host's name might or might not be abbreviated.
2039 The same fix has been applied.
2040
5de37277 2041
9a799bc0
PH
2042Exim version 4.54
2043-----------------
2044
2045PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2046 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2047 It now does.
2048
99a4b039
PH
2049PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2050 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2051
2052PH/03 Typo: missing ".o" in src/pcre/Makefile.
2053
4b233853
PH
2054PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2055 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2056 Also, for "Auto-Submitted", treat anything other than "no" as
2057 non-personal, in accordance with RFC 3834. (Previously it treated
2058 anything starting "auto-" as non-personal.)
2059
8857ccfd
PH
2060TF/01 The control=submission/name=... option had a problem with syntax
2061 errors if the name included a slash character. The /name= option
2062 now slurps the rest of the string, so it can include any characters
2063 but it must come last in the list of options (after /sender_retain
2064 or /domain=).
2065
433a2980
PH
2066PH/05 Some modifications to the interface to the fake nameserver for the new
2067 testing suite.
2068
3e46c1aa 2069
9a799bc0 2070
e3a311ba
TK
2071Exim version 4.53
2072-----------------
2073
2074TK/01 Added the "success_on_redirect" address verification option. See
2075 NewStuff for rationale and an example.
2076
13b685f9
PH
2077PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2078
395ff96d
PH
2079PH/02 Patch to exigrep to allow it to work on syslog lines.
2080
5b68f6e4
PH
2081PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2082 fread() to skip over the body file's header line, because in Cygwin the
2083 header line is locked and is inaccessible.
2084
1ab52c69
PH
2085PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2086 co-exist for some time) to make it clear that it is the Exim ID that is
2087 referenced, not the Message-ID: header line.
2088
b07e6aa3
PH
2089PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2090 string_format() function, because snprintf() does not exist on all
2091 operating systems.
2092
254e032f
PH
2093PH/06 The use of forbid_filter_existstest now also locks out the use of the
2094 ${stat: expansion item.
2095
3af76a81
PH
2096PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2097 protocol synchronization error", to keep the pedants happy.
2098
2548ba04
PH
2099PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2100 well as for IRIX systems, when gcc is being used. See the host.c source
2101 file for comments.
2102
b6c6011d
PH
2103PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2104
cf39cf57
PH
2105PH/10 Named domain lists were not working if used in a queue_smtp_domains
2106 setting.
2107
f1513293
PH
2108PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2109 transport and to the smtp transport in LMTP mode.
2110
727549a4
PH
2111TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2112
af46795e
PH
2113PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2114 run a filter in a subprocess. This could lead to confusion in subsequent
2115 lookups in the parent process. There should also be a search_tidyup() at
2116 the end of the subprocess.
2117
d7b47fd0
PH
2118PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2119 only if the host matched helo_try_verify_hosts, which caused the
2120 verification to occur when the EHLO/HELO command was issued. The ACL just
2121 tested the remembered result. Now, if a previous verification attempt has
2122 not happened, "verify = helo" does it there and then.
2123
ee744174
JJ
2124JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2125
b582ab87
PH
2126TK/03 Fix log output including CR from clamd.
2127
41a13e0a
PH
2128PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2129 exist provoked a memory error which could cause a segfault.
2130
f625cc5a
PH
2131PH/15 Installed PCRE 6.2
2132
2133PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2134
21f7af35
PH
2135PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2136 of the problem. Specifically, suggested +O2 rather than +O1 for the
2137 HP-UX compiler.
2138
31480e42
PH
2139PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2140
2d280592
PH
2141PH/20 If a delivery was routed to a non-standard port by means of an SRV
2142 record, the port was not correctly logged when the outgoing_port log
2143 selector was set (it logged the transort's default port).
2144
7cd1141b
PH
2145PH/21 Added support for host-specific ports to manualroute, queryprogram,
2146 fallback_hosts, and "hosts" in the smtp transport.
2147
2148PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2149 host errors such as "Connection refused".
2150
750af86e
PH
2151PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2152 authentication with radiusclient 0.4.9:
2153
2154 - Error returned from rc_read_config was caught wrongly
2155 - Username/password not passed on to radius server due to wrong length.
2156
2157 The presumption is that some radiusclient API changes for 4.51/PH/17
2158 were not taken care of correctly. The code is still untested by me (my
2159 Linux distribution still has 0.3.2 of radiusclient), but it was
2160 contributed by a Radius user.
2161
2162PH/24 When doing a callout, the value of $domain wasn't set correctly when
2163 expanding the "port" option of the smtp transport.
2164
4304270b
TK
2165TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2166 while reading a MIME header. Thanks to Tom Hughes for a patch.
2167
750af86e
PH
2168PH/24 Include config.h inside local_scan.h so that configuration settings are
2169 available.
2170
64ffc24f
PH
2171PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2172 that in an ACL for RCPT (for example), you can examine exactly what was
2173 received.
2174
5dd9625b
PH
2175PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2176 commands, but it was not correctly comparing the address with the actual
2177 client host address. Thus, it would show the EHLO address in Received:
2178 header lines when this was not necessary.
2179
5591031b
PH
2180PH/27 Added the % operator to ${eval:}.
2181
ba18e66a
PH
2182PH/28 Exim tries to create and chdir to its spool directory when it starts;
2183 it should be ignoring failures (because with -C, for example, it has lost
2184 privilege). It wasn't ignoring creation failures other than "already
2185 exists".
2186
9cec981f
PH
2187PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2188 -bV or -d is used.
2189
aa2b5c79
PH
2190PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2191 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2192 too many continuations, the temporary file was not being removed, and the
2193 return code was incorrect.
aa2b5c79 2194
48a53b7f
PH
2195PH/31 Missing "BOOL" in function definition in filtertest.c.
2196
1c59d63b
PH
2197PH/32 Applied Sieve patches from the maintainer.
2198
671012da
TK
2199TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2200
1509d3a8
PH
2201PH/33 Added "verify = not_blind".
2202
2203PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2204 Local/Makefile (with some defaults set). These are used in built scripts
2205 such as exicyclog, but they have never been used in the exim_install
2206 script (though there are many overriding facilities there). I have
2207 arranged that the exim_install script now takes note of these two
2208 settings.
2209
2210PH/35 Installed configuration files for Dragonfly.
2211
2fe1a124
PH
2212PH/36 When a locally submitted message by a trusted user did not contain a
2213 From: header, and the sender address was obtained from -f or from an SMTP
2214 MAIL command, and the trusted user did not use -F to supply a sender
2215 name, $originator_name was incorrectly used when constructing a From:
2216 header. Furthermore, $originator_name was used for submission mode
2217 messages from external hosts without From: headers in a similar way,
2218 which is clearly wrong.
2219
8800895a
PH
2220PH/37 Added control=suppress_local_fixups.
2221
ccfdb010
PH
2222PH/38 When log_selector = +received_sender was set, and the addition of the
2223 sender made the log line's construction buffer exactly full, or one byte
2224 less than full, an overflow happened when the terminating "\n" was
2225 subsequently added.
2226
1130bfb0
PH
2227PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2228 when the result of a list match is failure because a DNS lookup failed.
2229
ebcb507f
PH
2230PH/40 RM_COMMAND is now used in the building process.
2231
c35e155c
PH
2232PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2233 the "build-* directories that it finds.
2234
95d1f782
PH
2235PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2236 address in a domain literal was a prefix of an interface address.
2237
fd6de02e
PH
2238PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2239 when verifying a sender address, unless rewrite_headers is false.
2240
58de37c5
PH
2241PH/44 Wrote a long comment about why errors_to addresses are verified as
2242 recipients, not senders.
2243
261cf466
TF
2244TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2245 the ratelimit ACL was added.
2246
3ee512ff
PH
2247PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2248
e08c430f
PH
2249PH/46 Added extra information about PostgreSQL errors to the error string.
2250
bef5a11f
PH
2251PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2252 avoiding the need to install special zones in a real server. This is
2253 backwards compatible; if it can't find the fake resolver, it drops back.
2254 Thus, both old and new test suites can be run.
2255
7546de58
TF
2256TF/02 Added util/ratelimit.pl
2257
e5d5a95f
TF
2258TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2259 clock is set back in time.
2260
2e88a017
TF
2261TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2262 Candler <B.Candler@pobox.com>.
2263
a5f65aa4
TF
2264TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2265 OK for addresses that are the result of redirections.
2266
e7726cbf
PH
2267PH/48 A number of further additions for the benefit of the new test suite,
2268 including a fake gethostbyname() that interfaces to the fake DNS resolver
2269 (see PH/47 above).
2270
a7fdad5b
TF
2271TF/06 The fix for widen_domains has also been applied to qualify_single and
2272 search_parents which are the other dnslookup options that can cause
2273 header rewrites.
2274
6af56900
PH
2275PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2276 type ("H").
2277
0925ede6
PH
2278PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2279
66afa403
TF
2280TF/07 Exim produced the error message "an SRV record indicated no SMTP
2281 service" if it encountered an MX record with an empty target hostname.
2282 The message is now "an MX or SRV record indicated no SMTP service".
2283
0154e85a
TF
2284TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2285 if the DNS of the sending site is misconfigured. This is quite a
2286 common situation. This change restores the behaviour of treating a
2287 helo verification defer as a failure.
2288
16f12c76
PH
2289PH/51 If self=fail was set on a router, the bounce message did not include the
2290 actual error message.
2291
bbe902f0 2292
e5a9dba6
PH
2293Exim version 4.52
2294-----------------
2295
2296TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2297
22c3b60b
PH
2298PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2299 command itself ended in error, the underlying message about the transport
2300 filter timeout was being overwritten with the pipe command error. Now the
2301 underlying error message should be appended to the second error message.
2302
06a9b4b5
PH
2303TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2304
c1ac6996
PH
2305PH/02 Reduce the amount of output that "make" produces by default. Full output
2306 can still be requested.
2307
9c7a242c
PH
2308PH/03 The warning log line about a condition test deferring for a "warn" verb
2309 was being output only once per connection, rather than after each
2310 occurrence (because it was using the same function as for successful
2311 "warn" verbs). This seems wrong, so I have changed it.
2312
87ba3f5f
PH
2313TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2314 it should not have, which might have caused a crash in the right
2315 circumstances, but probably never did.
2316
2317PH/04 Installed a modified version of Tony Finch's patch to make submission
2318 mode fix the return path as well as the Sender: header line, and to
2319 add a /name= option so that you can make the user's friendly name appear
2320 in the header line.
2321
29aba418
TF
2322TF/03 Added the control = fakedefer ACL modifier.
2323
fe0dab11
TF
2324TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2325 Mark Lowes for thorough testing.
870f6ba8 2326
11d337a4
TK
2327TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2328
2329TK/03 Merged latest SRS patch from Miles Wilton.
2330
415c8f3b
PH
2331PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2332 with the definition in sysexits.h (which is #included earlier).
2333 Fortunately, Exim does not actually use EX_OK. The code used to try to
2334 preserve the sysexits.h value, by assumimg that macro definitions were
2335 scanned for macro replacements. I have been disabused of this notion,
2336 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2337
958541e9
PH
2338PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2339 in the smtp transport. When a block could not be written in a single
2340 write() function, the timeout was being re-applied to each part-write.
2341 This seems wrong - if the receiver was accepting one byte at a time it
2342 would take for ever. The timeout is now adjusted when this happens. It
2343 doesn't have to be particularly precise.
2344
c206415f
TK
2345TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2346 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2347
2a4be8f9
PH
2348PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2349 without a domain if the check to <postmaster@domain> fails.
2350
1cba11c5
SC
2351SC/01 Eximstats: added -xls and the ability to specify output files
2352 (patch written by Frank Heydlauf).
2353
2354SC/02 Eximstats: use FileHandles for outputing results.
2355
2356SC/03 Eximstats: allow any combination of xls, txt, and html output.
2357
2358SC/04 Eximstats: fixed display of large numbers with -nvr option
2359
2360SC/05 Eximstats: fixed merging of reports with empty tables.
2361
2362SC/06 Eximstats: added the -include_original_destination flag
2363
2364SC/07 Eximstats: removed tabs and trailing whitespace.
2365
1005d00e
TK
2366TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2367
2368TK/06 MBOX spool code: Add real "From " MBOX separator line
2369 so the .eml file is really in mbox format (even though
2370 most programs do not really care). Patch from Alex Miller.
2371
2372TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2373 The latter is generated from $received_to and is only set if the
2374 message has one envelope recipient. SA can use these headers,
2375 obviously out-of-the-box. Patch from Alex Miller.
2376
9b4768fa
PH
2377PH/08 The ${def test on a variable was returning false if the variable's
2378 value was "0", contrary to what the specification has always said!
2379 The result should be true unless the variable is empty.
2380
2381PH/09 The syntax error of a character other than { following "${if
2382 def:variable_name" (after optional whitespace) was not being diagnosed.
2383 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2384 accidental colon was present, for example, could give incorrect results.
2385
0d7eb84a
PH
2386PH/10 Tidied the code in a number of places where the st_size field of a stat()
2387 result is used (not including appendfile, where other changes are about
2388 to be made).
2389
2390PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2391 This involved changing a lot of size variables from int to off_t. It
2392 should work with maildirs and everything.
2393
40727bee
TK
2394TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2395 spamd dying while we are connected to it.
2396
554d2369
TF
2397TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2398 <jgh@wizmail.org>
2399
1f922db1
PH
2400PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2401 function for BDB 4.3.
2402
ef213c3b
PH
2403PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2404
8ac170f3
PH
2405PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2406 the sources for PCRE have been re-arranged and more files are now
2407 involved.
2408
b1c749bb
PH
2409PH/15 The code I had for printing potentially long long variables in PH/11
2410 above was not the best (it lost precision). The length of off_t variables
2411 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2412 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2413 to be "long long int" or "long int". This is needed for the internal
2414 formatting function string_vformat().
b1c749bb 2415
4aac9b49
PH
2416PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2417 the configuration file to be ":syslog", then the script "guesses" where
2418 the logs files are, rather than using the compiled in default. In our
2419 case the guess is not the same as the compiled default, so the script
2420 suddenly stopped working when I started to use syslog. The patch checks
2421 to see if log_file_path is "". If so, it attempts to read it from exim
2422 with no configuration file to get the compiled in version, before it
2423 falls back to the previous guessing code."
2424
294520c8
TK
2425TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2426 implementing BATV in an Exim configuration. See NewStuff for the gory
2427 details.
2428
5bd022fe
PH
2429PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2430 Makefile that are specific to HP-UX.
2431
90e9ce59
PH
2432PH/18 If the "use_postmaster" option was set for a recipient callout together
2433 with the "random" option, the postmaster address was used as the MAIL
2434 FROM address for the random test, but not for the subsequent recipient
2435 test. It is now used for both.
2436
5ea81592
PH
2437PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2438 patch removes a few documentation additions to RFC 3028, because the
2439 latest draft now contains them. It adds the new en;ascii-case comparator
2440 and a new error check for 8bit text in MIME parts. Comparator and
2441 require names are now matched exactly. I enabled the subaddress
2442 extension, but it is not well tested yet (read: it works for me)."
2443
c6c2dc1d
PH
2444PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2445 rework some of the code of TK/09 above to avoid the hardwired use of
2446 "%lld" and "long long". Replaced the call to snprintf() with a call to
2447 string_vformat().
2448
fffffe4c
PH
2449PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2450 records point to non-existent hosts", "retry timeout exceeded", and
2451 "retry time not reached for any host after a long failure period".
ca02eafb 2452
9a26b6b2
PH
2453PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2454 experimental DomainKeys support:
2455
2456 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2457 (2) On an error such as an illegally used "control", the wrong name for
2458 the control was given.
2459
2460 These problems did NOT occur unless DomainKeys support was compiled.
2461
4aee0225
PH
2462PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2463
32d668a5
PH
2464PH/24 Added ${if match_ip condition.
2465
8187c3f3
PH
2466PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2467 databases so that it will be absolutely obvious if a crash occurs in the
2468 DB library. This is a regular occurrence (often caused by mis-matched
2469 db.h files).
2470
ff790e47 2471PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2472 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2473 picked up on a user's system that detects such things. There doesn't seem
2474 to be a gcc warning option for this - only an attribute that has to be
2475 put on the function's prototype. It seems that in Fedora Core 4 they have
2476 set this on a number of new functions. No doubt there will be more in due
2477 course.
ff790e47 2478
5417f6d1
PH
2479PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2480 specify a transport. However, if an address that was verified by such a
2481 router was the subject of a callout, Exim crashed because it tried to
2482 read the rcpt_include_affixes from the non-existent transport. Now it
2483 just assumes that the setting of that option is false. This bug was
2484 introduced by 4.51/PH/31.
2485
59cf8544
PH
2486PH/28 Changed -d+all to exclude +memory, because that information is very
2487 rarely of interest, but it makes the output a lot bigger. People tend to
2488 do -d+all out of habit.
2489
e7ad8a65
PH
2490PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2491 code in os-type was giving problems when libc.so lives in lib64, like on
2492 x86_64 Fedora Core.
2493
ade42478
PH
2494PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2495 aren't the modern standard, and it seems that some systems' include files
2496 don't always have them. Exim was already checking for some of the newer
2497 ones like T_AAAA, and defining it itself. I've added checks for all the
2498 record types that Exim uses.
2499
182ad5cf
PH
2500PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2501 not automatically generating a new one, as it is supposed to. This
2502 prevented TLS from working. If the file did exist, but contained invalid
2503 data, a new version was generated, as expected. It was only the case of a
2504 non-existent file that was broken.
2505
b0d9fc80
TK
2506TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2507 with a change in libdomainkeys > 0.64.
2508
2509TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2510 from DNS. If the selector record carries the flag, it now has
2511 precedence over the domain-wide flag.
2512
2513TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2514
47c7a64a
PH
2515PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2516 the use of a port name that isn't defined in /etc/services) occurred, the
2517 message was deferred as in a normal delivery, and thus remained on the
2518 spool, instead of being failed because of the mua_wrapper setting. This
2519 is now fixed, and I tidied up some of the mua_wrapper messages at the
2520 same time.
2521
a388bce4
SC
2522SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2523 the messages in a hash of arrays rather than using individual hashes.
2524 This is a bit cleaner and results in dramatic memory savings, albeit
2525 at a slight CPU cost.
2526
2527SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2528 as requested by Marc Sherman.
2529
2530SC/10 Eximstats: added histograms for user specified patterns as requested
2531 by Marc Sherman.
2532
0793e4ed
SC
2533SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2534
c58b88df
PH
2535PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2536 fopen() in the content-scanning modules that did not already have it.
2537
e7ad8a65 2538
7982096b
PH
2539Exim version 4.51
2540-----------------
2541
1a46a8c5
PH
2542TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2543 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2544
2f079f46 2545TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2546
2547TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2548
2549PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2550 to test Sieve filters that use "vacation".
2551
2552PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2553 that changes the way the GnuTLS parameters are stored in the cache file.
2554 The new format can be generated externally. For backward compatibility,
2555 if the data in the cache doesn't make sense, Exim assumes it has read an
2556 old-format file, and it generates new data and writes a new file. This
2557 means that you can't go back to an older release without removing the
2558 file.
2559
2560PH/03 A redirect router that has both "unseen" and "one_time" set does not
2561 work if there are any delivery delays because "one_time" forces the
2562 parent to be marked "delivered", so its unseen clone is never tried
2563 again. For this reason, Exim now forbids the simultaneous setting of
2564 these two options.
2565
2566PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2567 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2568 entry if you want to know the details. The fix, however, neglected to
2569 consider the case when local delivery batching is involved. The test for
2570 "previously delivered" was not happening when checking to see if an
2571 address could be batched with a previous (undelivered) one; under
2572 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2573 address.
1a46a8c5
PH
2574
2575PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2576 in its include files, and this causes problems building Exim.
2577
2578PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2579 header_syntax) but Exim was just ignoring anything given after a slash.
2580 In particular, this caused confusion with an attempt to use "verify =
2581 reverse_host_lookup/defer_ok". An error is now given when options are
2582 supplied for verify items that do not have them. (Maybe reverse_host_
2583 lookup should have a defer_ok option, but that's a different point.)
2584
2585PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2586 defined by RFC 821) to 2048, because there were problems with some AUTH
2587 commands, and RFC 1869 says the size should be increased for extended
2588 SMTP commands that take arguments.
2589
2590PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2591 Finch).
2592
2593PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2594 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2595
49c2d5ea
PH
2596PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2597 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2598 whatever). Otherwise the password may appear in the log. Following change
2599 PH/42 below, there is no longer a chance of it appearing in a bounce
2600 message.
49c2d5ea 2601
bf759a8b
PH
2602PH/11 Installed exipick version 20050225.0 from John Jetmore.
2603
83364d30
PH
2604PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2605 of its addresses was ever tried. (Bugzilla bug #2.)
2606
7999bbd7
PH
2607PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2608 the result incorrectly in the debug output. (It correctly added a newline
2609 to what was transported.)
2610
7dbf77c9
PH
2611TF/01 Added $received_time.
2612
74e0617f
PH
2613PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2614 commented out examples of how to interface to a virus scanner and to
2615 SpamAssassin. Also added commented examples of av_scanner and
2616 spamd_address settings.
2617
2f079f46
PH
2618PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2619 and controls are allowed in which ACLs. There were a couple of minor
2620 errors. Some of the entries in the conditions table (which is a table of
2621 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2622 negation of where the condition IS allowed.
2623
8c841523
PH
2624PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2625
7766a4f0
PH
2626PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2627 header file does not have a version number, so I've had to invent a new
2628 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2629 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2630 radiusclient), but it was contributed by a Radius user.
2631
8b417f2c
PH
2632PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2633 files or directories, for OpenSSL.
2634
901f42cb
PH
2635PH/19 When an Exim process that is running as root has to create an Exim log
2636 file, it does so in a subprocess that runs as exim:exim so as to get the
2637 ownership right at creation (otherwise, other Exim processes might see
2638 the file with the wrong ownership). There was no test for failure of this
2639 fork() call, which would lead to the process getting stuck as it waited
2640 for a non-existent subprocess. Forks do occasionally fail when resources
2641 run out. I reviewed all the other calls to fork(); they all seem to check
2642 for failure.
2643
f9b9210e
PH
2644PH/20 When checking for unexpected SMTP input at connect time (before writing
2645 the banner), Exim was not dealing correctly with a non-positive return
2646 from the read() function. If the client had disconnected by this time,
2647 the result was a log entry for a synchronization error with an empty
2648 string after "input=" when read() returned zero. If read() returned -1
2649 (an event I could not check), uninitialized data bytes were printed.
2650 There were reports of junk text (parts of files, etc) appearing after
2651 "input=".
2652
54cdb463
PH
2653PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2654
cf00dad6
PH
2655PH/22 Added support for macro redefinition, and (re)definition in between
2656 driver and ACL definitions.
2657
acb1b346
PH
2658PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2659 forgetting to use the resulting value; it was using the unexpanded value.
2660
c5ddb310
PH
2661PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2662 hadn't been configured. The fix is from Juergen Kreileder, who
2663 understands it better than I do:
2664
2665 "Here's what I see happening with three configured cyrus_sasl
2666 authenticators configured (plain, login, cram-md5):
2667
2668 On startup auth_cyrus_sasl_init() gets called for each of these.
2669 This means three calls to sasl_listmech() without a specified mech_list.
2670 => SASL tests which mechs of all available mechs actually work
2671 => three warnings about OTP not working
2672 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2673
2674 With the patch, sasl_listmech() also gets called three times. But now
2675 SASL's mech_list option is set to the server_mech specified in the the
2676 authenticator. Or in other words, the answer from sasl_listmech()
2677 gets limited to just the mech you're testing for (which is different
2678 for each call.)
2679 => the return list contains just 'plain' or 'login', 'cram-md5' or
2680 nothing depending on the value of ob->server_mech.
2681
2682 I've just tested the patch: Authentication still works fine,
2683 unavailable mechs specified in the exim configuration are still
2684 caught, and the auth.log warnings about OTP are gone."
2685
31619da6
PH
2686PH/25 When debugging is enabled, the contents of the command line are added
2687 to the debugging output, even when log_selector=+arguments is not
2688 specified.
2689
bebaf0fc
PH
2690PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2691 answer is "GNU", and only if the return is "GNU/something" is the answer
2692 "Linux".
2693
475fe28a
PH
2694PH/27 $acl_verify_message is now set immediately after the failure of a
2695 verification in an ACL, and so is available in subsequent modifiers. In
2696 particular, the message can be preserved by coding like this:
2697
2698 warn !verify = sender
2699 set acl_m0 = $acl_verify_message
2700
2701 Previously, $acl_verify_message was set only while expanding "message"
2702 and "log_message" when a very denied access.
2703
7e8bec7a
PH
2704PH/28 Modified OS/os.c-Linux with
2705
2706 -#ifndef OS_LOAD_AVERAGE
2707 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2708
2709 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2710 nomenclature these days.)
2711
e4a89c47
PH
2712PH/29 Installed patch from the Sieve maintainer that adds the options
2713 sieve_useraddress and sieve_subaddress to the redirect router.
2714
5ca2a9a1
PH
2715PH/30 In these circumstances:
2716 . Two addresses routed to the same list of hosts;
2717 . First host does not offer TLS;
2718 . First host accepts first address;
2719 . First host gives temporary error to second address;
2720 . Second host offers TLS and a TLS session is established;
2721 . Second host accepts second address.
2722 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2723 and peerdn, if requested) that were in fact used only for the second
2724 address.
7e8bec7a 2725
c688b954
PH
2726PH/31 When doing a callout as part of verifying an address, Exim was not paying
2727 attention to any local part prefix or suffix that was matched by the
2728 router that accepted the address. It now behaves in the same way as it
2729 does for delivery: the affixes are removed from the local part unless
2730 rcpt_include_affixes is set on the transport.
2731
fed77020
PH
2732PH/32 Add the sender address, as F=<...>, to the log line when logging a
2733 timeout during the DATA phase of an incoming message.
2734
7fe1560f
PH
2735PH/33 Sieve envelope tests were broken for match types other than :is. I have
2736 applied a patch sanctioned by the Sieve maintainer.
c688b954 2737
ebb6e6d5
PH
2738PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2739 the uid or gid is negative. A case of a negative gid caused this to be
2740 noticed. The fix allows for either to be negative.
2741
9c4e8f60
PH
2742PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2743 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2744 overlooked.
2745
2746PH/36 The change PH/12 above was broken. Fixed it.
2747
d7174846
PH
2748PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2749 the grounds that routing the same address twice would always produce the
2750 same answer. This might have been true once, but it is certainly no
2751 longer true now. Routing a child address may depend on the previous
2752 routing that produced that child. Some complicated redirection strategies
2753 went wrong when messages had multiple recipients, and made Exim's
2754 behaviour dependent on the order in which the addresses were given.
2755
2756 I have moved the duplicate checking until after the routing is complete.
2757 Exim scans the addresses that are assigned to local and remote
2758 transports, and removes any duplicates. This means that more work will be
2759 done, as duplicates will always all be routed, but duplicates are
2760 presumably rare, so I don't expect this is of any significance.
2761
2762 For deliveries to pipes, files, and autoreplies, the duplicate checking
2763 still happens during the routing process, since they are not going to be
2764 routed further.
2765
cfe75fc3
PH
2766PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2767 It corrects a timeout issue with spamd. This is Ian's comment: "The
2768 background is that sometimes spamd either never reads data from a
2769 connection it has accepted, or it never writes response data. The exiscan
2770 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2771 blindly assumes that writes won't block so it may never time out."
2772
be22d70e
PH
2773PH/39 Allow G after quota size as well as K and M.
2774
0612b098
PH
2775PH/40 The value set for $authenticated_id in an authenticator may not contain
2776 binary zeroes or newlines because the value is written to log lines and
2777 to spool files. There was no check on this. Now the value is run through
2778 the string_printing() function so that such characters are converted to
2779 printable escape sequences.
2780
2e0c1448
PH
2781PH/41 $message_linecount is a new variable that contains the total number of
2782 lines in the message. Compare $body_linecount, which is the count for the
2783 body only.
2784
447d236c
PH
2785PH/42 Exim no longer gives details of delivery errors for specific addresses in
2786 bounce and delay warning messages, except in certain special cases, which
2787 are as follows:
2788
2789 (a) An SMTP error message from a remote host;
2790 (b) A message specified in a :fail: redirection;
2791 (c) A message specified in a "fail" command in a system filter;
2792 (d) A message specified in a FAIL return from the queryprogram router;
2793 (e) A message specified by the cannot_route_message router option.
2794
2795 In these cases only, Exim does include the error details in bounce and
2796 warning messages. There are also a few cases where bland messages such
2797 as "unrouteable address" or "local delivery error" are given.
2798
d20976dc
PH
2799PH/43 $value is now also set for the "else" part of a ${run expansion.
2800
f656d135
PH
2801PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2802 being worked on, but at least Exim now implements the latest version to
2803 play with."
2804
2e2a30b4
PH
2805PH/45 In a pipe transport, although a timeout while waiting for the pipe
2806 process to complete was treated as a delivery failure, a timeout while
2807 writing the message to the pipe was logged, but erroneously treated as a
2808 successful delivery. Such timeouts include transport filter timeouts. For
2809 consistency with the overall process timeout, these timeouts are now
2810 treated as errors, giving rise to delivery failures by default. However,
2811 there is now a new Boolean option for the pipe transport called
2812 timeout_defer, which, if set TRUE, converts the failures into defers for
2813 both kinds of timeout. A transport filter timeout is now identified in
2814 the log output.
2815
9176e9f0
PH
2816PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2817 systems where "make" and "gmake" are different, calling "gmake" at top
2818 level broke things. I've arranged for the value of $(MAKE) to be passed
2819 from the Makefile to this script so that it can call the same version of
2820 "make".
2821
7982096b 2822
bbe902f0
PH
2823A note about Exim versions 4.44 and 4.50
2824----------------------------------------
2825
2826Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2827changes of various kinds. As a consequence, a big documentation update was
2828needed. This delayed the release for rather longer than seemed good, especially
2829in the light of a couple of (minor) security issues. Therefore, the changes
2830that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2831release. So 4.44 and 4.50 are in effect two different branches that both start
2832from 4.43.
2833
2834I have left the 4.50 change log unchanged; it contains all the changes since
28354.43. The change log for 4.44 is below; many of its items are identical to
2836those for 4.50. This seems to be the most sensible way to preserve the
2837historical information.
2838
2839
f7b63901 2840Exim version 4.50
495ae4b0
PH
2841-----------------
2842
5fe762f6
PH
2843 1. Minor wording change to the doc/README.SIEVE file.
2844
139059f6 2845 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2846 computation of the current number of files was incorrect.
495ae4b0 2847
7086e875
PH
2848 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2849 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2850 place.
2851
35af9f61
PH
2852 4. Give more explanation in the error message when the command for a transport
2853 filter fails to execute.
2854
b668c215
PH
2855 5. There are several places where Exim runs a non-Exim command in a
2856 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2857 was being done only for the command run by the queryprogram router. It is
2858 now done for all such subprocesses. The other cases are: ${run, transport
2859 filters, and the commands run by the lmtp and pipe transports.
2860
a494b1e1
PH
2861 6. Added CONFIGURE_GROUP build-time option.
2862
2863 7. Some older OS have a limit of 256 on the maximum number of file
2864 descriptors. Exim was using setrlimit() to set 1000 as a large value
2865 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2866 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2867
c5fcb476
PH
2868 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2869 was an oversight, and furthermore, ever since the addition of extra
2870 controls (e.g. 4.43/32), the checks on when to allow different forms of
2871 "control" were broken. There should now be diagnostics for all cases when a
2872 control that does not make sense is encountered.
2873
69358f02
PH
2874 9. Added the /retain_sender option to "control=submission".
2875
5be20824
PH
287610. $recipients is now available in the predata ACL (oversight).
2877
eb2c0248
PH
287811. Tidy the search cache before the fork to do a delivery from a message
2879 received from the command line. Otherwise the child will trigger a lookup
2880 failure and thereby defer the delivery if it tries to use (for example) a
2881 cached ldap connection that the parent has called unbind on.
2882
2a3eea10
PH
288312. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2884 of $address_data from the recipient verification was clobbered by the
2885 sender verification.
2886
288713. The value of address_data from a sender verification is now available in
2888 $sender_address_data in subsequent conditions in the ACL statement.
2889
23c7ff99
PH
289014. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2891
4deaf07d
PH
289215. Added a new option "connect=<time>" to callout options, to set a different
2893 connection timeout.
2894
926e1192
PH
289516. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2896 was its contents. (It was OK if the option was not defined at all.)
2897
650edc6f
PH
289817. A "Completed" log line is now written for messages that are removed from
2899 the spool by the -Mrm option.
2900
2c7db3f5
PH
290118. New variables $sender_verify_failure and $recipient_verify_failure contain
2902 information about exactly what failed.
2903
3d235903
PH
290419. Added -dd to debug only the daemon process.
2905
7c7ad977
PH
290620. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2907 handles timeouts, both on the server side and network timeouts. Renamed the
2908 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2909
981756db
PH
291021. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2911 It is now set to "smtps".
2912
d4eb88df
PH
291322. $host_address is now set to the target address during the checking of
2914 ignore_target_hosts.
2915
291623. When checking ignore_target_hosts for an ipliteral router, no host name was
2917 being passed; this would have caused $sender_host_name to have been used if
2918 matching the list had actually called for a host name (not very likely,
2919 since this list is usually IP addresses). A host name is now passed as
2920 "[x.x.x.x]".
2921
7d468ab8
PH
292224. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2923 code that specifies a non-restarting handler (typically sigaction() in
2924 modern systems) in an attempt to fix a rare and obscure crash bug.
2925
292625. Narrowed the window for a race in the daemon that could cause it to ignore
2927 SIGCHLD signals. This is not a major problem, because they are used only to
2928 wake it up if nothing else does.
2929
62c0818f
PH
293026. A malformed maildirsize file could cause Exim to calculate negative values
2931 for the mailbox size or file count. Odd effects could occur as a result.
2932 The maildirsize information is now recalculated if the size or filecount
2933 end up negative.
2934
26034054
PH
293527. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2936 support for a long time. Removed HAVE_SYS_VFS_H.
2937
af66f652
PH
293828. Installed the latest version of exipick from John Jetmore.
2939
90af77f4
PH
294029. In an address list, if the pattern was not a regular expression, an empty
2941 subject address (from a bounce message) matched only if the pattern was an
2942 empty string. Non-empty patterns were not even tested. This was the wrong
2943 because it is perfectly reasonable to use an empty address as part of a
2944 database query. An empty address is now tested by patterns that are
2945 lookups. However, all the other forms of pattern expect the subject to
2946 contain a local part and a domain, and therefore, for them, an empty
2947 address still always fails if the pattern is not itself empty.
2948
d8ef3577
PH
294930. Exim went into a mad DNS loop when attempting to do a callout where the
2950 host was specified on an smtp transport, and looking it up yielded more
2951 than one IP address.
2952
5cb8cbc6
PH
295331. Re-factored the code for checking spool and log partition space into a
2954 function that finds that data and another that does the check. The former
2955 is then used to implement four new variables: $spool_space, $log_space,
2956 $spool_inodes, and $log_inodes.
2957
14702f5b
PH
295832. The RFC2047 encoding function was originally intended for short strings
2959 such as real names; it was not keeping to the 75-character limit for
2960 encoded words that the RFC imposes. It now respects the limit, and
2961 generates multiple encoded words if necessary. To be on the safe side, I
2962 have increased the buffer size for the ${rfc2047: expansion operator from
2963 1024 to 2048 bytes.
2964
063b1e99
PH
296533. It is now permitted to omit both strings after an "if" condition; if the
2966 condition is true, the result is "true". As before, when the second string
2967 is omitted, a false condition yields an empty string. This makes it less
2968 cumbersome to write custom ACL and router conditions.
2969
652e1b65
PH
297034. Failure to deliver a bounce message always caused it to be frozen, even if
2971 there was an errors_to setting on the router. The errors_to setting is now
2972 respected.
2973
6f0c9a4f
PH
297435. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2975 canonical form (fully expanded) before being placed in
2976 $sender_host_address.
2977
33397d19
PH
297836. The table in the code that translates DNS record types into text (T_A to
2979 "A" for instance) was missing entries for NS and CNAME. It is just possible
2980 that this could have caused confusion if both these types were looked up
2981 for the same domain, because the text type is used as part of Exim's
2982 per-process caching. But the chance of anyone hitting this buglet seems
2983 very small.
2984
7bb56e1f
PH
298537. The dnsdb lookup has been extended in a number of ways.
2986
2987 (1) There is a new type, "zns", which walks up the domain tree until it
2988 finds some nameserver records. It should be used with care.
2989
ea3bc19b
PH
2990 (2) There is a new type, "mxh", which is like "mx" except that it returns
2991 just the host names, not the priorities.
2992
2993 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2994 looked up. The behaviour when one of the lookups defers can be
2995 controlled by a keyword.
7bb56e1f 2996
ea3bc19b 2997 (4) It is now possible to specify the separator character for use when
7bb56e1f 2998 multiple records are returned.
33397d19 2999
0bcb2a0e
PH
300038. The dnslists ACL condition has been extended: it is now possible to supply
3001 a list of IP addresses and/or domains to be looked up in a particular DNS
3002 domain.
3003
2ac0e484
PH
300439. Added log_selector=+queue_time_overall.
3005
4e1fde53
PH
300640. When running the queue in the test harness, wait just a tad after forking a
3007 delivery process, to get repeatability of debugging output.
3008
de365ded
PH
300941. Include certificate and key file names in error message when GnuTLS fails
3010 to set them up, because the GnuTLS error message doesn't include the name
3011 of the failing file when there is a problem reading it.
3012
f05da2e8
PH
301342. Allow both -bf and -bF in the same test run.
3014
d6453af2
PH
301543. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
3016
f7b63901
PH
301744. The "Exiscan patch" is now merged into the mainline Exim source.
3018
301945. Sometimes the final signoff response after QUIT could fail to get
3020 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3021 < 0 before doing a fflush(). This bug looks as though it goes back to the
3022 introduction of TLS in release 3.20, but "sometimes" must have been rare
3023 because the tests only now provoked it.
3024
a444213a
PH
302546. Reset the locale to "C" after calling embedded Perl, in case it was changed
3026 (this can affect the format of dates).
3027
0ec020ea
PH
302847. exim_tidydb, when checking for the continued existence of a message for
3029 which it has found a message-specific retry record, was not finding
3030 messages that were in split spool directories. Consequently, it was
3031 deleting retry records that should have stayed in existence.
3032
b1206957
PH
303348. Steve fixed some bugs in eximstats.
3034
303549. The SPA authentication driver was not abandoning authentication and moving
3036 on to the next authenticator when an expansion was forced to fail,
3037 contradicting the general specification for all authenticators. Instead it
3038 was generating a temporary error. It now behaves as specified.
3039
26dd5a95
PH
304050. The default ordering of permitted cipher suites for GnuTLS was pessimal
3041 (the order specifies the preference for clients). The order is now AES256,
3042 AES128, 3DES, ARCFOUR128.
3043
343b2385
PH
304451. Small patch to Sieve code - explicitly set From: when generating an
3045 autoreply.
3046
1c5466b9
PH
304752. Exim crashed if a remote delivery caused a very long error message to be
3048 recorded - for instance if somebody sent an entire SpamAssassin report back
3049 as a large number of 550 error lines. This bug was coincidentally fixed by
3050 increasing the size of one of Exim's internal buffers (big_buffer) that
3051 happened as part of the Exiscan merge. However, to be on the safe side, I
3052 have made the code more robust (and fixed the comments that describe what
3053 is going on).
3054
55ee9ee3
PH
305553. Now that there can be additional text after "Completed" in log lines (if
3056 the queue_time_overall log selector is set), a one-byte patch to exigrep
3057 was needed to allow it to recognize "Completed" as not the last thing in
3058 the line.
3059
d38f8232
PH
306054. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
3061 patch that reportedly fixes this has been added. I am not expert enough to
3062 create a test for it. This is what the patch creator wrote:
3063
3064 "I found a little strange behaviour of ldap code when working with
3065 Windows 2003 AD Domain, where users was placed in more than one
3066 Organization Units. When I tried to give exim partial DN, the exit code
3067 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
3068 But simultaneously result of request was absolutely normal ldap result,
3069 so I produce this patch..."
3070
3295e65b
PH
3071 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
3072 REFERENCE, so I have modified the code to exclude the patch when that macro
3073 is not defined.
3074
7102e136
PH
307555. Some experimental protocols are using DNS PTR records for new purposes. The
3076 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
3077 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3078 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 3079 CAN-2005-0021
7102e136 3080
3ca0ba97
PH
308156. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
3082
c2bcbe20
PH
308357. Double the size of the debug message buffer (to 2048) so that more of very
3084 long debug lines gets shown.
3085
18ce445d
PH
308658. The exicyclog utility now does better if the number of log files to keep
3087 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
3088
1f5b4c3d
PH
308959. Two changes related to the smtp_active_hostname option:
3090
3091 (1) $smtp_active_hostname is now available as a variable.
3092 (2) The default for smtp_banner uses $smtp_active_hostname instead
3093 of $primary_hostname.
3094
b975ba52
PH
309560. The host_aton() function is supposed to be passed a string that is known
3096 to be a valid IP address. However, in the case of IPv6 addresses, it was
3097 not checking this. This is a hostage to fortune. Exim now panics and dies
3098 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
3099 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3100 components; fortuitously, this particular loophole had already been fixed
3101 by change 4.50/55 above.
3102
3103 If there are any other similar loopholes, the new check in host_aton()
3104 itself should stop them being exploited. The report I received stated that
3105 data on the command line could provoke the exploit when Exim was running as
3106 exim, but did not say which command line option was involved. All I could
3107 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3108 running as the user.
ea3a6f44 3109 CAN-2005-0021
85b87bc2
PH
3110
311161. There was a buffer overflow vulnerability in the SPA authentication code
3112 (which came originally from the Samba project). I have added a test to the
3113 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 3114 CAN-2005-0022
b975ba52 3115
17ffcae7
PH
311662. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3117 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3118
d95f9fdb
PH
311963. The daemon start-up calls getloadavg() while still root for those OS that
3120 need the first call to be done as root, but it missed one case: when
3121 deliver_queue_load_max is set with deliver_drop_privilege. This is
3122 necessary for the benefit of the queue runner, because there is no re-exec
3123 when deliver_drop_privilege is set.
3124
86b8287f
PH
312564. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3126 This has been fixed.
3127
60dc5e56
PH
312865. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3129 was in use, was not putting the data itself into the right store pool;
3130 consequently, it could be overwritten for a subsequent message in the same
3131 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3132 the caching.)
3133
533244af
PH
313466. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3135
a5a28604
PH
313667. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3137 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3138 the function were treating the return as a boolean value, which happened to
3139 work because 0=false and not-0=true, but is not correct code.
3140
7e634d24
PH
314168. The host_aton() function was not handling scoped IPv6 addresses (those
3142 with, for example, "%eth0" on the end) correctly.
3143
3e11c26b
PH
314469. Fixed some compiler warnings in acl.c for the bitmaps specified with
3145 negated items (that is, ~something) in unsigned ints. Some compilers
3146 apparently mutter when there is no cast.
3147
6729cf78
PH
314870. If an address verification called from an ACL failed, and did not produce a
3149 user-specific message (i.e. there was only a "system" message), nothing was
3150 put in $acl_verify_message. In this situation, it now puts the system
3151 message there.
3152
00f00ca5
PH
315371. Change 4.23/11 added synchronization checking at the start of an SMTP
3154 session; change 4.31/43 added the unwanted input to the log line - except
3155 that it did not do this in the start of session case. It now does.
3156
c9bdd01c
PH
315772. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3158 This is wrong and can cause the other end to generate a synchronization
3159 error if it is another Exim or anything else that does the synchronization
3160 check. A QUIT command is no longer sent after a timeout.
3161
d43194df
PH
316273. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3163 during host lookups.
3164
fe5b5d0b
PH
316574. The defer_ok option of callout verification was not working if it was used
3166 when verifying addresses in header lines, that is, for this case:
3167
3168 verify = header_sender/callout=defer_ok
3169
76a2d7ba
PH
317075. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3171 those file descriptors could be used for SMTP connections. If anything
3172 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3173 could be sent to the SMTP client, causing chaos. The daemon now opens
3174 stdin, stdout, and stderr to /dev/null when it puts itself into the
3175 background.
3176
317776. Arrange for output from Perl's "warn" command to be written to Exim's main
3178 log by default. The user can override this with suitable Perl magic.
3179
04f7d5b9
PH
318077. The use of log_message on a "discard" ACL verb, which is supposed to add to
3181 the log message when discard triggers, was not working for the DATA ACL or
3182 for the non-SMTP ACL.
3183
bc60667e
PH
318478. Error message wording change in sieve.c.
3185
bb6e88ff
PH
318679. If smtp_accept_max_per_host was set, the number of connections could be
3187 restricted to fewer than expected, because the daemon was trying to set up
3188 a new connection before checking whether the processes handling previous
3189 connections had finished. The check for completed processes is now done
3190 earlier. On busy systems, this bug wouldn't be noticed because something
3191 else would have woken the daemon, and it would have reaped the completed
3192 process earlier.
3193
1e70f85b
PH
319480. If a message was submitted locally by a user whose login name contained one
3195 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3196 It caused a spool format error. I have fixed the spool reading code. A
3197 related problem was that the "from" clause in the Received: line became
3198 illegal because of the space(s). It is now covered by ${quote_local_part.
3199
320081. Included the latest eximstats from Steve (adds average sizes to HTML Top
3201 tables).
3202
4e01f9d6
PH
320382. Updated OS/Makefile-AIX as per message from Mike Meredith.
3204
1ee1cef2
PH
320583. Patch from Sieve maintainer to fix unterminated string problem in
3206 "vacation" handling.
3207
6e2b4ccc
PH
320884. Some minor changes to the Linux configuration files to help with other
3209 OS variants using glibc.
3210
8e669ac1
PH
321185. One more patch for Sieve to update vacation handling to latest spec.
3212
495ae4b0 3213
bbe902f0
PH
3214----------------------------------------------------
3215See the note above about the 4.44 and 4.50 releases.
3216----------------------------------------------------
3217
3218
3219Exim version 4.44
3220-----------------
3221
3222 1. Change 4.43/35 introduced a bug that caused file counts to be
3223 incorrectly computed when quota_filecount was set in an appendfile
3224 transport
3225
3226 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3227 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3228 place.
3229
3230 3. Give more explanation in the error message when the command for a transport
3231 filter fails to execute.
3232
3233 4. There are several places where Exim runs a non-Exim command in a
3234 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3235 was being done only for the command run by the queryprogram router. It is
3236 now done for all such subprocesses. The other cases are: ${run, transport
3237 filters, and the commands run by the lmtp and pipe transports.
3238
3239 5. Some older OS have a limit of 256 on the maximum number of file
3240 descriptors. Exim was using setrlimit() to set 1000 as a large value
3241 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3242 systems. I've change it so that if it can't get 1000, it tries for 256.
3243
3244 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3245 was an oversight, and furthermore, ever since the addition of extra
3246 controls (e.g. 4.43/32), the checks on when to allow different forms of
3247 "control" were broken. There should now be diagnostics for all cases when a
3248 control that does not make sense is encountered.
3249
3250 7. $recipients is now available in the predata ACL (oversight).
3251
3252 8. Tidy the search cache before the fork to do a delivery from a message
3253 received from the command line. Otherwise the child will trigger a lookup
3254 failure and thereby defer the delivery if it tries to use (for example) a
3255 cached ldap connection that the parent has called unbind on.
3256
3257 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3258 of $address_data from the recipient verification was clobbered by the
3259 sender verification.
3260
326110. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3262 was its contents. (It was OK if the option was not defined at all.)
3263
326411. A "Completed" log line is now written for messages that are removed from
3265 the spool by the -Mrm option.
3266
326712. $host_address is now set to the target address during the checking of
3268 ignore_target_hosts.
3269
327013. When checking ignore_target_hosts for an ipliteral router, no host name was
3271 being passed; this would have caused $sender_host_name to have been used if
3272 matching the list had actually called for a host name (not very likely,
3273 since this list is usually IP addresses). A host name is now passed as
3274 "[x.x.x.x]".
3275
327614. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3277 code that specifies a non-restarting handler (typically sigaction() in
3278 modern systems) in an attempt to fix a rare and obscure crash bug.
3279
328015. Narrowed the window for a race in the daemon that could cause it to ignore
3281 SIGCHLD signals. This is not a major problem, because they are used only to
3282 wake it up if nothing else does.
3283
328416. A malformed maildirsize file could cause Exim to calculate negative values
3285 for the mailbox size or file count. Odd effects could occur as a result.
3286 The maildirsize information is now recalculated if the size or filecount
3287 end up negative.
3288
328917. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3290 support for a long time. Removed HAVE_SYS_VFS_H.
3291
ea3a6f44 329218. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3293
329419. Allow an empty sender to be matched against a lookup in an address list.
3295 Previously the only cases considered were a regular expression, or an
3296 empty pattern.
3297
329820. Exim went into a mad DNS lookup loop when doing a callout where the
3299 host was specified on the transport, if the DNS lookup yielded more than
3300 one IP address.
3301
ea3a6f44
NM
330221. The RFC2047 encoding function was originally intended for short strings
3303 such as real names; it was not keeping to the 75-character limit for
3304 encoded words that the RFC imposes. It now respects the limit, and
3305 generates multiple encoded words if necessary. To be on the safe side, I
3306 have increased the buffer size for the ${rfc2047: expansion operator from
3307 1024 to 2048 bytes.
bbe902f0 3308
ea3a6f44
NM
330922. Failure to deliver a bounce message always caused it to be frozen, even if
3310 there was an errors_to setting on the router. The errors_to setting is now
3311 respected.
bbe902f0
PH
3312
331323. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3314 canonical form (fully expanded) before being placed in
3315 $sender_host_address.
3316
331724. Updated eximstats to version 1.33
3318
ea3a6f44
NM
331925. Include certificate and key file names in error message when GnuTLS fails
3320 to set them up, because the GnuTLS error message doesn't include the name
3321 of the failing file when there is a problem reading it.
bbe902f0
PH
3322
332326. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3324 As per change 25.
bbe902f0 3325
ea3a6f44
NM
332627. Reset the locale to "C" after calling embedded Perl, in case it was changed
3327 (this can affect the format of dates).
bbe902f0 3328
ea3a6f44
NM
332928. exim_tidydb, when checking for the continued existence of a message for
3330 which it has found a message-specific retry record, was not finding
3331 messages that were in split spool directories. Consequently, it was
3332 deleting retry records that should have stayed in existence.
bbe902f0
PH
3333
333429. eximstats updated to version 1.35
3335 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3336 1.35 - bugfix such that pie charts by volume are generated correctly
3337
ea3a6f44
NM
333830. The SPA authentication driver was not abandoning authentication and moving
3339 on to the next authenticator when an expansion was forced to fail,
3340 contradicting the general specification for all authenticators. Instead it
3341 was generating a temporary error. It now behaves as specified.
bbe902f0 3342
ea3a6f44
NM
334331. The default ordering of permitted cipher suites for GnuTLS was pessimal
3344 (the order specifies the preference for clients). The order is now AES256,
3345 AES128, 3DES, ARCFOUR128.
bbe902f0 3346
ea3a6f44
NM
334731. Small patch to Sieve code - explicitly set From: when generating an
3348 autoreply.
bbe902f0 3349
ea3a6f44
NM
335032. Exim crashed if a remote delivery caused a very long error message to be
3351 recorded - for instance if somebody sent an entire SpamAssassin report back
3352 as a large number of 550 error lines. This bug was coincidentally fixed by
3353 increasing the size of one of Exim's internal buffers (big_buffer) that
3354 happened as part of the Exiscan merge. However, to be on the safe side, I
3355 have made the code more robust (and fixed the comments that describe what
3356 is going on).
bbe902f0 3357
ea3a6f44
NM
335833. Some experimental protocols are using DNS PTR records for new purposes. The
3359 keys for these records are domain names, not reversed IP addresses. The
3360 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3361 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3362 CAN-2005-0021
3363
ea3a6f44
NM
336434. The host_aton() function is supposed to be passed a string that is known
3365 to be a valid IP address. However, in the case of IPv6 addresses, it was
3366 not checking this. This is a hostage to fortune. Exim now panics and dies
3367 if the condition is not met. A case was found where this could be provoked
3368 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3369 components; fortuitously, this particular loophole had already been fixed
3370 by change 4.50/55 or 4.44/33 above.
3371
3372 If there are any other similar loopholes, the new check in host_aton()
3373 itself should stop them being exploited. The report I received stated that
3374 data on the command line could provoke the exploit when Exim was running as
3375 exim, but did not say which command line option was involved. All I could
3376 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3377 running as the user.
bbe902f0
PH
3378 CAN-2005-0021
3379
ea3a6f44
NM
338035. There was a buffer overflow vulnerability in the SPA authentication code
3381 (which came originally from the Samba project). I have added a test to the
3382 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3383 CAN-2005-0022
3384
ea3a6f44
NM
338536. The daemon start-up calls getloadavg() while still root for those OS that
3386 need the first call to be done as root, but it missed one case: when
3387 deliver_queue_load_max is set with deliver_drop_privilege. This is
3388 necessary for the benefit of the queue runner, because there is no re-exec
3389 when deliver_drop_privilege is set.
bbe902f0 3390
ea3a6f44
NM
339137. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3392 was in use, was not putting the data itself into the right store pool;
3393 consequently, it could be overwritten for a subsequent message in the same
3394 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3395 the caching.)
bbe902f0 3396
ea3a6f44
NM
339738. Sometimes the final signoff response after QUIT could fail to get
3398 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3399 < 0 before doing a fflush(). This bug looks as though it goes back to the
3400 introduction of TLS in release 3.20, but "sometimes" must have been rare
3401 because the tests only now provoked it.
bbe902f0
PH
3402
3403
495ae4b0
PH
3404Exim version 4.43
3405-----------------
3406
3407 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3408 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3409 Now it returns an integer. A number of calls were still expecting a T/F
3410 return. Fortuitously, in all cases, the tests worked in OK situations,
3411 which is the norm. However, things would have gone wrong on any write
3412 failures on the smtp file descriptor. This function is used when sending
3413 messages over SMTP and also when doing verify callouts.
3414
3415 2. When Exim is called to do synchronous delivery of a locally submitted