Update $message_linecount for maildir_tag.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
5dc43717 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.632 2010/06/12 15:21:25 jetmore Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
aa097c4c
NM
6Exim version 4.75
7-----------------
8
9NM/01 Workround for PCRE version dependancy in version reporting
10 Bugzilla 1073
11
7f3d9eff
TF
12TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
13 This fixes portability to compilers other than gcc, notably
14 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
15
159f52d2
TF
16TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
17 makefiles for portability to HP-UX and POSIX correctness.
18
0cc9542a
PP
19PP/01 Permit LOOKUP_foo enabling on the make command-line.
20 Also via indented variable definition in the Makefile.
21 (Debugging by Oliver Heesakkers).
22
f7274286
PP
23PP/02 Restore caching of spamd results with expanded spamd_address.
24 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
25
7b797365
PP
26PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
27 Improves build reliability. Fix from: Frank Elsner
28
caacae52
NM
29NM/02 Fix wide character breakage in the rfc2047 coding
30 Fixes bug 1064. Patch from Andrey N. Oktyabrski
31
09dcaba9
NM
32NM/03 Allow underscore in dnslist lookups
33 Fixes bug 1026. Patch from Graeme Fowler
34
bc19a55b
PP
35PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
36 Code patches from Adam Ciarcinski of NetBSD.
caacae52 37
bd4c9759
NM
38NM/04 Fixed exiqgrep to cope with mailq missing size issue
39 Fixes bug 943.
40
b72aab72
PP
41PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
42 is logged, to avoid truncation. Patch from John Horne.
43
2fe76745
PP
44PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
45 Patch from Jakob Hirsch.
46
76aa570c
PP
47PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
48 SQL string expansion failure details.
49 Patch from Andrey Oktyabrski.
50
f1e5fef5
PP
51PP/08 Bugzilla 486: implement %M datestamping in log filenames.
52 Patch from Simon Arlott.
53
4d805ee9
PP
54PP/09 New lookups functionality failed to compile on old gcc which rejects
55 extern declarations in function scope.
56 Patch from Oliver Fleischmann
57
cd59ab18
PP
58PP/10 Use sig_atomic_t for flags set from signal handlers.
59 Check getgroups() return and improve debugging.
60 Fixed developed for diagnosis in bug 927 (which turned out to be
61 a kernel bug).
62
332f5cf3
PP
63PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
64 Patch from Mark Zealey.
65
aa097c4c 66
8c07b69f
TF
67Exim version 4.74
68-----------------
69
70TF/01 Failure to get a lock on a hints database can have serious
71 consequences so log it to the panic log.
72
c0ea85ab
TF
73TF/02 Log LMTP confirmation messages in the same way as SMTP,
74 controlled using the smtp_confirmation log selector.
75
0761d44e
TF
76TF/03 Include the error message when we fail to unlink a spool file.
77
0a349494
PP
78DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
79 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
80 for maintaining out-of-tree patches for some time.
81
82PP/01 Bugzilla 139: Documentation and portability issues.
83 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
84 Handle per-OS dynamic-module compilation flags.
85
fea24b2e
PP
86PP/02 Let /dev/null have normal permissions.
87 The 4.73 fixes were a little too stringent and complained about the
88 permissions on /dev/null. Exempt it from some checks.
89 Reported by Andreas M. Kirchwitz.
90
6545de78
PP
91PP/03 Report version information for many libraries, including
92 Exim version information for dynamically loaded libraries. Created
93 version.h, now support a version extension string for distributors
94 who patch heavily. Dynamic module ABI change.
95
1670ef10
PP
96PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
97 privilege escalation vulnerability whereby the Exim run-time user
98 can cause root to append content of the attacker's choosing to
99 arbitrary files.
100
c0886197
PP
101PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
102 (Wolfgang Breyha)
103
b7487bce
PP
104PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
105 If dropping privileges for untrusted macros, we disabled normal logging
106 on the basis that it would fail; for the Exim run-time user, this is not
107 the case, and it resulted in successful deliveries going unlogged.
108 Fixed. Reported by Andreas Metzler.
109
8c07b69f 110
97fd1e48 111Exim version 4.73
ed7f7860 112-----------------
97fd1e48
PP
113
114PP/01 Date: & Message-Id: revert to normally being appended to a message,
115 only prepend for the Resent-* case. Fixes regression introduced in
116 Exim 4.70 by NM/22 for Bugzilla 607.
117
6901c596
PP
118PP/02 Include check_rfc2047_length in configure.default because we're seeing
119 increasing numbers of administrators be bitten by this.
120
a8c8d6b5
JJ
121JJ/01 Added DISABLE_DKIM and comment to src/EDITME
122
77bb000f
PP
123PP/03 Bugzilla 994: added openssl_options main configuration option.
124
a29e5231
PP
125PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
126
ec5a0394 127PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 128
55c75993
PP
129PP/06 Adjust NTLM authentication to handle SASL Initial Response.
130
453a6645 131PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
132 without a peer certificate, leading to a segfault because of an
133 assumption that peers always have certificates. Be a little more
453a6645
PP
134 paranoid. Problem reported by Martin Tscholak.
135
8544e77a
PP
136PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
137 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
138 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
139 CL also introduces -bmalware, various -d+acl logging additions and
140 more caution in buffer sizes.
8544e77a 141
83e029d5
PP
142PP/09 Implemented reverse_ip expansion operator.
143
ed7f7860
PP
144PP/10 Bugzilla 937: provide a "debug" ACL control.
145
7d9f747b
PP
146PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
147
4b2241d2
PP
148PP/12 Bugzilla 973: Implement --version.
149
10385c15
PP
150PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
151
dbc4b90d
PP
152PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
153
532be449
PP
154PP/15 Bugzilla 816: support multiple condition rules on Routers.
155
6a8de854 156PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
157 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
158 ignore trailing whitespace.
6a8de854 159
5dc43717
JJ
160JJ/02 prevent non-panic DKIM error from being sent to paniclog
161
162JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
163 "exim" to be used
55c75993 164
3346ab01
PP
165PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
166 Notification from Dr Andrew Aitchison.
167
491fab4c
PP
168PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
169 ExtendedDetectionInfo response format.
170 Notification from John Horne.
171
13eb9497
PP
172PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
173 compatible.
174
175PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
176 XSL and documented dependency on system catalogs, with examples of how
177 it normally works.
178
7f36d675
DW
179DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
180 access.
181
c1d94452
DW
182DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
183 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
184 configuration file which is writeable by the Exim user or group.
185
e2f5dc15
DW
186DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
187 of configuration files to cover files specified with the -C option if
188 they are going to be used with root privileges, not just the default
189 configuration file.
190
cd25e41d
DW
191DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
192 option (effectively making it always true).
193
261dc43e
DW
194DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
195 files to be used while preserving root privileges.
196
fa32850b
DW
197DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
198 that rogue child processes cannot use them.
199
79d4bc3d
PP
200PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
201 run-time user, instead of root.
202
2cfd3221
PP
203PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
204 Exim run-time user without dropping privileges.
205
fb08281f
DW
206DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
207 result string, instead of calling string_vformat() twice with the same
208 arguments.
3346ab01 209
74935b98
DW
210DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
211 for other users. Others should always drop root privileges if they use
212 -C on the command line, even for a whitelisted configure file.
213
90b6341f
DW
214DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
215
57730b52
ML
216NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
217
66581d1e 218
465e92cf
JJ
219Exim version 4.72
220-----------------
221
453a6645
PP
222JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
223 $data_path, and $header_path variables; fixed documentation bugs and
224 typos
465e92cf 225
453a6645
PP
226JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
227 exipick to access non-standard spools, including the "frozen" queue
228 (Finput)
edae0343 229
9bd3e22c
NM
230NM/01 Bugzilla 965: Support mysql stored procedures.
231 Patch from Alain Williams
232
bb576ff7
NM
233NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
234
5a1a5845
NM
235NM/03 Bugzilla 955: Documentation fix for max_rcpts.
236 Patch from Andreas Metzler
237
981a9fad
NM
238NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
239 Patch from Kirill Miazine
240
7fc497ee
NM
241NM/05 Bugzilla 671: Added umask to procmail example.
242
1a41defa
JJ
243JJ/03 installed exipick 20100323.0, fixing doc bug
244
a466095c 245NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 246 directory. Notification and patch from Dan Rosenberg.
a466095c 247
94a6bd0b
NM
248TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
249
250TK/02 Improve log output when DKIM signing operation fails.
251
252MH/01 Treat the transport option dkim_domain as a colon separated
253 list, not as a single string, and sign the message with each element,
254 omitting multiple occurences of the same signer.
255
c1b141a8
NM
256NM/07 Null terminate DKIM strings, Null initialise DKIM variable
257 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 258
b26eacf1 259NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
260 Patch by Simon Arlott
261
179c5980 262PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 263 MBX locking. Notification from Dan Rosenberg.
179c5980 264
9bd3e22c 265
7c6d71af
NM
266Exim version 4.71
267-----------------
268
7d9f747b 269TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 270
f013fb92
NM
271NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
272
0eb8eedd
NM
273NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
274
663ee6d9
NM
275NM/03 Bugzilla 847: Enable DNSDB lookup by default.
276
177ebd9b
NM
277NM/04 Bugzilla 915: Flag broken perl installation during build.
278
7c6d71af 279
210f147e
NM
280Exim version 4.70
281-----------------
282
cdd3bb85 283TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 284 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
285
286TK/02 Write list of recipients to X-Envelope-Sender header when building
287 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 288 Hirsch).
cdd3bb85
TK
289
290TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
291 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 292 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
293
294TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
295 by Mark Daniel Reidel <mr@df.eu>.
296
210f147e
NM
297NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
298 When building exim an external PCRE library is now needed -
299 PCRE is a system library on the majority of modern systems.
300 See entry on PCRE_LIBS in EDITME file.
301
deafd5b3
NM
302NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
303 conversation. Added nologin parameter to request.
7d9f747b 304 Patch contributed by Kirill Miazine.
deafd5b3 305
089793a4
TF
306TF/01 Do not log submission mode rewrites if they do not change the address.
307
5f16ca82
TF
308TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
309
dae9d94e 310NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 311 log files in place. Contributed by Roberto Lima.
dae9d94e 312
7d9f747b 313NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 314
06864c44
TF
315TF/03 Bugzilla 615: When checking the local_parts router precondition
316 after a local_part_suffix or local_part_prefix option, Exim now
317 does not use the address's named list lookup cache, since this
318 contains cached lookups for the whole local part.
319
65a7d8c3 320NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 321 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 322
23510047 323TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 324
7d9f747b 325NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 326
7d8eec3a 327NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 328 Patch provided by Jan Srzednicki.
6c588e74 329
89dec7b6
TF
330TF/05 Leading white space used to be stripped from $spam_report which
331 wrecked the formatting. Now it is preserved.
5f28a6e8 332
a99de90c
TF
333TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
334 that they are available at delivery time.
335
e2803e40
TF
336TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
337
7199e1ee
TF
338TF/08 TLS error reporting now respects the incoming_interface and
339 incoming_port log selectors.
340
e276e04b
TF
341TF/09 Produce a more useful error message if an SMTP transport's hosts
342 setting expands to an empty string.
343
ce552449 344NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 345 Patch provided by Phil Pennock.
ce552449 346
e765a0f1 347NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 348 Patch provided by Richard Godbee.
e765a0f1 349
4f054c63 350NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 351 acl_smtp_notquit, added index entry.
4f054c63 352
7d9f747b
PP
353NM/09 Bugzilla 787: Potential buffer overflow in string_format.
354 Patch provided by Eugene Bujak.
24c929a2 355
7d9f747b
PP
356NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
357 accept(). Patch provided by Maxim Dounin.
cf73943b 358
b52bc06e 359NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 360 Patch provided by Phil Pennock.
b52bc06e 361
447de4b0
NM
362NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
363
4c69d561 364NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 365 Patch provided by Brad "anomie" Jorsch.
4c69d561 366
d5c39246 367NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 368 Patch provided by Dean Brooks.
9b989985 369
0b23848a
TK
370TK/05 Add native DKIM support (does not depend on external libraries).
371
8f3414a1 372NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 373 Patch provided by Graeme Fowler.
e2aacdfd 374
fb6f955d
NM
375NM/16 Bugzilla 851: Documentation example syntax fix.
376
377NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 378
7d9f747b
PP
379NM/18 Bugzilla 894: Fix issue with very long lines including comments in
380 lsearch.
dbb0bf41 381
7d9f747b
PP
382NM/19 Bugzilla 745: TLS version reporting.
383 Patch provided by Phil Pennock.
f3766eb5 384
7d9f747b
PP
385NM/20 Bugzilla 167: bool: condition support.
386 Patch provided by Phil Pennock.
36f12725 387
7d9f747b
PP
388NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
389 clients. Patch provided by Phil Pennock.
e6060e2c 390
7d9f747b
PP
391NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
392 Patch provided by Brad "anomie" Jorsch.
5eb690a1 393
7d9f747b
PP
394NM/23 Bugzilla 687: Fix misparses in eximstats.
395 Patch provided by Heiko Schlittermann.
d5c13d66 396
7d9f747b
PP
397NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
398 Patch provided by Heiko Schlittermann.
b2335c0b 399
7d9f747b 400NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 401 plus update to original patch.
f4cd9433 402
7d9f747b 403NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 404
7d9f747b
PP
405NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
406 Patch provided by David Brownlee.
8dc71ab3 407
7d9f747b 408NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 409
7d9f747b 410NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 411
7d9f747b 412NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 413
7d9f747b 414NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 415
17792b53 416NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 417 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 418
7d9f747b
PP
419NM/33 Bugzilla 898: Transport filter timeout fix.
420 Patch by Todd Rinaldo.
52383f8f 421
7d9f747b
PP
422NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
423 Patch by Serge Demonchaux.
5ca6d115 424
7d9f747b
PP
425NM/35 Bugzilla 39: Base64 decode bug fixes.
426 Patch by Jakob Hirsch.
baee9eee 427
7d9f747b 428NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 429
7d9f747b 430NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 431
7d9f747b 432NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 433
7d9f747b 434NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 435
deafd5b3 436
47db1125
NM
437Exim version 4.69
438-----------------
439
4b3504d0
TK
440TK/01 Add preliminary DKIM support. Currently requires a forked version of
441 ALT-N's libdkim that I have put here:
442 http://duncanthrax.net/exim-experimental/
443
444 Note to Michael Haardt: I had to rename some vars in sieve.c. They
445 were called 'true' and it seems that C99 defines that as a reserved
446 keyword to be used with 'bool' variable types. That means you could
447 not include C99-style headers which use bools without triggering
448 build errors in sieve.c.
449
81ea09ca
NM
450NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
451 as mailq or other aliases. Changed the --help handling significantly
452 to do whats expected. exim_usage() emits usage/help information.
453
f13cddcb
SC
454SC/01 Added the -bylocaldomain option to eximstats.
455
7d9f747b 456NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 457
7d9f747b 458NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 459
7d9f747b 460NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
461
462
eb4c0de6
PH
463Exim version 4.68
464-----------------
465
466PH/01 Another patch from the Sieve maintainer.
467
6a3bceb1
PH
468PH/02 When an IPv6 address is converted to a string for single-key lookup
469 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
470 dots are used instead of colons so that keys in lsearch files need not
471 contain colons. This was done some time before quoting was made available
472 in lsearch files. However, iplsearch files do require colons in IPv6 keys
473 (notated using the quote facility) so as to distinguish them from IPv4
474 keys. This meant that lookups for IP addresses in host lists did not work
475 for iplsearch lookups.
476
477 This has been fixed by arranging for IPv6 addresses to be expressed with
478 colons if the lookup type is iplsearch. This is not incompatible, because
479 previously such lookups could never work.
480
481 The situation is now rather anomolous, since one *can* have colons in
482 ordinary lsearch keys. However, making the change in all cases is
483 incompatible and would probably break a number of configurations.
484
2e30fa9d
TK
485TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
486 version.
487
0806a9c5
MH
488MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
489 conversion specification without a maximum field width, thereby enabling
490 a rogue spamd server to cause a buffer overflow. While nobody in their
491 right mind would setup Exim to query an untrusted spamd server, an
492 attacker that gains access to a server running spamd could potentially
493 exploit this vulnerability to run arbitrary code as the Exim user.
494
ae276964
TK
495TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
496 $primary_hostname instead of what libspf2 thinks the hosts name is.
497
0f2cbd1b
MH
498MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
499 a directory entry by the name of the lookup key. Previously, if a
500 symlink pointed to a non-existing file or a file in a directory that
501 Exim lacked permissions to read, a lookup for a key matching that
502 symlink would fail. Now it is enough that a matching directory entry
503 exists, symlink or not. (Bugzilla 503.)
504
2b85bce7
PH
505PH/03 The body_linecount and body_zerocount variables are now exported in the
506 local_scan API.
507
93655c46
PH
508PH/04 Added the $dnslist_matched variable.
509
6c512171
PH
510PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
511 This means they are set thereafter only if the connection becomes
512 encrypted.
513
514PH/06 Added the client_condition to authenticators so that some can be skipped
515 by clients under certain conditions.
516
aa6dc513
PH
517PH/07 The error message for a badly-placed control=no_multiline_responses left
518 "_responses" off the end of the name.
519
a96603a0
PH
520PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
521
8f240103
PH
522PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
523 (without spaces) instead of just copying the configuration text.
524
525PH/10 Added the /noupdate option to the ratelimit ACL condition.
526
d677b2f2
PH
527PH/11 Added $max_received_linelength.
528
d52120f2
PH
529PH/12 Added +ignore_defer and +include_defer to host lists.
530
64f2600a
PH
531PH/13 Installed PCRE version 7.2. This needed some changes because of the new
532 way in which PCRE > 7.0 is built.
533
8669f003
PH
534PH/14 Implemented queue_only_load_latch.
535
a4dc33a8
PH
536PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
537 MAIL command. The effect was to mangle the value on 64-bit systems.
538
d6a60c0f
PH
539PH/16 Another patch from the Sieve maintainer.
540
8f128379
PH
541PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
542
8932dffe
PH
543PH/18 If a system quota error occurred while trying to create the file for
544 a maildir delivery, the message "Mailbox is full" was not appended to the
545 bounce if the delivery eventually timed out. Change 4.67/27 below applied
546 only to a quota excession during the actual writing of the file.
d6a60c0f 547
ddea74fa 548PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
549 characters?) which causes problems in log lines. The DN values are now
550 passed through string_printing() before being added to log lines.
551
ddea74fa 552PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
553 and InterBase are left for another time.)
554
ddea74fa
PH
555PH/21 Added message_body_newlines option.
556
ce9f225c
PH
557PH/22 Guard against possible overflow in moan_check_errorcopy().
558
19897d52
PH
559PH/23 POSIX allows open() to be a macro; guard against that.
560
bc64a74d
PH
561PH/24 If the recipient of an error message contained an @ in the local part
562 (suitably quoted, of course), incorrect values were put in $domain and
563 $local_part during the evaluation of errors_copy.
564
eb4c0de6 565
b4ed4da0
PH
566Exim version 4.67
567-----------------
568
22ad45c9
MH
569MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
570 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
571 Jan Srzednicki.
572
b4ed4da0
PH
573PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
574 issue a MAIL command.
575
431b7361
PH
576PH/02 In an ACL statement such as
577
578 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
579
580 if a client was not listed at all, or was listed with a value other than
581 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
582 the condition was not true (as it should be), so access was not denied.
583 The bug was that the ! inversion was incorrectly passed on to the second
584 item. This has been fixed.
585
586PH/03 Added additional dnslists conditions == and =& which are different from
587 = and & when the dns lookup returns more than one IP address.
588
83da1223
PH
589PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
590 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
591
54fc8428
PH
592PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
593 FSYNC, which compiles an option called disable_fsync that allows for
594 bypassing fsync(). The documentation is heavily laced with warnings.
595
34c5e8dd
SC
596SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
597
bbe15da8
PH
598PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
599 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
600 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
601 including adding "make clean"; (3) Added -fPIC when compiling the test
602 dynamically loaded module, to get rid of a warning.
603
0e8a9471
MH
604MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
605 message fails, move_frozen_messages = true and ignore_bounce_errors_after
606 = 0s. The bug is otherwise harmless.
607
f0872424
PH
608PH/07 There was a bug in the dovecot authenticator such that the value of
609 $auth1 could be overwritten, and so not correctly preserved, after a
610 successful authentication. This usually meant that the value preserved by
611 the server_setid option was incorrect.
612
b01dd148
PH
613PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
614
6bf342e1
PH
615PH/09 Installed PCRE release 7.0.
616
273f34d0
PH
617PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
618 run for batched SMTP input. It is now run at the start of every message
619 in the batch. While fixing this I discovered that the process information
620 (output by running exiwhat) was not always getting set for -bs and -bS
621 input. This is fixed, and it now also says "batched" for BSMTP.
622
cf8b11a5
PH
623PH/11 Added control=no_pipelining.
624
41c7c167
PH
625PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
626 patch, slightly modified), and move the expansion of helo_data till after
627 the connection is made in the smtp transport (so it can use these
628 values).
629
9c57cbc0
PH
630PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
631
f3f065bb
PH
632PH/14 Added log_selector = +pid.
633
047bdd8c
PH
634PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
635
0ce9abe6
PH
636PH/16 Add ${if forany and ${if forall.
637
0e22dfd1
PH
638PH/17 Added dsn_from option to vary the From: line in DSNs.
639
4c590bd1
PH
640PH/18 Flush SMTP output before performing a callout, unless control =
641 no_callout_flush is set.
642
09945f1e
PH
643PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
644 was true (the default) a successful delivery failed to delete the retry
645 item, thus causing premature timeout of the address. The bug is now
646 fixed.
647
c51b8e75
PH
648PH/20 Added hosts_avoid_pipelining to the smtp transport.
649
e28326d8
PH
650PH/21 Long custom messages for fakedefer and fakereject are now split up
651 into multiline reponses in the same way that messages for "deny" and
652 other ACL rejections are.
653
75b1493f
PH
654PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
655 with slight modification.
656
7c5214ec
PH
657PH/23 Applied sieve patches from the maintainer "tracking the latest notify
658 draft, changing the syntax and factoring some duplicate code".
659
4311097e
PH
660PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
661 for deliveries of the second and subsequent messages over the same SMTP
662 connection.
663
29f89cad
PH
664PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
665 ${reduce, with only minor "tidies".
666
5e687460
SC
667SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
668
c3611384
PH
669PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
670 expansion side effects.
671
5a11a7b4
PH
672PH/27 When a message times out after an over-quota error from an Exim-imposed
673 quota, the bounce message says "mailbox is full". This message was not
674 being given when it was a system quota that was exceeded. It now should
675 be the same.
676
0e20aff9
MH
677MH/03 Made $recipients available in local_scan(). local_scan() already has
678 better access to the recipient list through recipients_list[], but
679 $recipients can be useful in postmaster-provided expansion strings.
680
ca86f471
PH
681PH/28 The $smtp_command and $smtp_command_argument variables were not correct
682 in the case of a MAIL command with additional options following the
683 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
684 were accidentally chopped off.
685
a14e5636
PH
686PH/29 SMTP synchronization checks are implemented when a command is read -
687 there is a check that no more input is waiting when there shouldn't be
688 any. However, for some commands, a delay in an ACL can mean that it is
689 some time before the response is written. In this time, more input might
690 arrive, invalidly. So now there are extra checks after an ACL has run for
691 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
692 pipelining has not been advertised.
693
ec95d1a6
PH
694PH/30 MH's patch to allow iscntrl() characters to be list separators.
695
42855d71
PH
696PH/31 Unlike :fail:, a custom message specified with :defer: was not being
697 returned in the SMTP response when smtp_return_error_details was false.
698 This has been fixed.
699
57c2c631
PH
700PH/32 Change the Dovecot authenticator to use read() and write() on the socket
701 instead of the C I/O that was originally supplied, because problems were
702 reported on Solaris.
703
58c01c94
PH
704PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
705 Exim which did not show up earlier: it was assuming that a call to
706 SSL_CTX_set_info_callback() might give an error value. In fact, there is
707 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
708 was a macro that became an assignment, so it seemed to work. This has
709 changed to a proper function call with a void return, hence the compile
710 error. Exim's code has been fixed.
711
dee5a20a
PH
712PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
713 cpus.
714
d2ee6114
PH
715PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
716
b2d5182b
PH
717PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
718
79749a79
PH
719PH/37 If a message is not accepted after it has had an id assigned (e.g.
720 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
721 "Completed" line in the log. When some messages of this type were
722 selected by exigrep, they were listed as "not completed". Others were
723 picked up by some special patterns. I have improved the selection
724 criteria to be more general.
79749a79 725
c456d9bb
PH
726PH/38 The host_find_failed option in the manualroute router can now be set
727 to "ignore", to completely ignore a host whose IP address cannot be
728 found. If all hosts are ignored, the behaviour is controlled by the new
729 host_all_ignored option.
730
cd9868ec
PH
731PH/39 In a list of hosts for manualroute, if one item (either because of multi-
732 homing or because of multiple MX records with /mx) generated more than
733 one IP address, and the following item turned out to be the local host,
734 all the secondary addresses of the first item were incorrectly removed
735 from the list, along with the local host and any following hosts (which
736 is what is supposed to happen).
737
ebeaf996
PH
738PH/40 When Exim receives a message, it writes the login name, uid, and gid of
739 whoever called Exim into the -H file. In the case of the daemon it was
740 behaving confusingly. When first started, it used values for whoever
741 started the daemon, but after a SIGHUP it used the Exim user (because it
742 calls itself on a restart). I have changed the code so that it now always
743 uses the Exim user.
744
2679d413
PH
745PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
746 message are rejected with the same error (e.g. no authentication or bad
747 sender address), and a DATA command is nevertheless sent (as can happen
748 with PIPELINING or a stupid MUA), the error message that was given to the
749 RCPT commands is included in the rejection of the DATA command. This is
750 intended to be helpful for MUAs that show only the final error to their
751 users.
752
84024b72
PH
753PH/42 Another patch from the Sieve maintainer.
754
8005d38e
SC
755SC/02 Eximstats - Differentiate between permanent and temporary rejects.
756 Eximstats - Fixed some broken HTML links and added missing column headers
757 (Jez Hancock).
758 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
759 columns for Rejects, Temp Rejects, Ham, and Spam rows.
760
3298c6c6
SC
761SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
762
a43a27c5
PH
763PH/43 Yet another patch from the Sieve maintainer.
764
58eb016e 765PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
766 the response to the final '.' that terminates a message, but only in the
767 case where the client has not sent further data following the '.'
768 (unfortunately, this is allowed). However, in many cases there won't be
769 any further data because there won't be any more messages to send. A call
770 to select() can be used: if it shows that the input is "ready", there is
771 either input waiting, or the socket has been closed. An attempt to read
772 the next input character can distinguish the two cases. Previously, Exim
58eb016e 773 would have sent an OK response which the client would never have see.
563b63fa
PH
774 This could lead to message repetition. This fix should cure that, at
775 least in a lot of common cases.
58eb016e 776
b43a74ea
PH
777PH/45 Do not advertise STARTTLS in response to HELP unless it would be
778 advertised in response to EHLO.
779
b4ed4da0 780
5dd1517f
PH
781Exim version 4.66
782-----------------
783
784PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
785 fixed by 4.65/MH/01 (is this a record?) are fixed:
786
787 (i) An empty string was always treated as zero by the numeric comparison
788 operators. This behaviour has been restored.
789
790 (ii) It is documented that the numeric comparison operators always treat
791 their arguments as decimal numbers. This was broken in that numbers
792 starting with 0 were being interpreted as octal.
793
794 While fixing these problems I realized that there was another issue that
795 hadn't been noticed. Values of message_size_limit (both the global option
796 and the transport option) were treated as octal if they started with 0.
797 The documentation was vague. These values are now always treated as
798 decimal, and I will make that clear in the documentation.
799
800
93cfa765
TK
801Exim version 4.65
802-----------------
803
804TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
805 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
806 versions. (#438)
807
d6066548
MH
808MH/01 Don't check that the operands of numeric comparison operators are
809 integers when their expansion is in "skipping" mode (fixes bug
810 introduced by 4.64-PH/07).
811
4362ff0d
PH
812PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
813 child addresses, Exim now panics and dies. Previously, because the count
814 is held in a short int, deliveries were likely to be lost. As such a
815 large number of recipients for a single message is ridiculous
816 (performance will be very, very poor), I have chosen to impose a limit
817 rather than extend the field.
818
93cfa765 819
944e9e9c
TF
820Exim version 4.64
821-----------------
aa41d2de 822
21d74bd9
TK
823TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
824 leftover -K file (the existence of which was triggered by #402).
825 While we were at it, introduced process PID as part of the -K
826 filename. This should rule out race conditions when creating
827 these files.
828
829TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
830 processing considerably. Previous code took too long for large mails,
831 triggering a timeout which in turn triggers #401.
832
833TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
834 in the DK code in transports.c. sendfile() is not really portable,
835 hence the _LINUX specificness.
944e9e9c
TF
836
837TF/01 In the add_headers option to the mail command in an Exim filter,
838 there was a bug that Exim would claim a syntax error in any
839 header after the first one which had an odd number of characters
840 in the field name.
841
2b1c6e3a
PH
842PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
843 callout verification, Exim cached a "reject" for the entire domain. This
844 is correct for most verifications, but it is not correct for a recipient
845 verification with use_sender or use_postmaster set, because in that case
846 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
847 case of MAIL FROM:<> rejection from other early rejections (e.g.
848 rejection of HELO). When verifying a recipient using a non-null MAIL
849 address, the cache is ignored if it shows MAIL FROM:<> rejection.
850 Whatever the result of the callout, the value of the domain cache is
851 left unchanged (for any other kind of callout, getting as far as trying
852 RCPT means that the domain itself is ok).
853
1f872c80
PH
854PH/02 Tidied a number of unused variable and signed/unsigned warnings that
855 gcc 4.1.1 threw up.
856
857PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
858 manifest itself as EPIPE rather than ECONNECT. When tidying away a
859 session, the daemon ignores ECONNECT errors and logs others; it now
860 ignores EPIPE as well.
861
d203e649
PH
862PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
863 (quoted-printable decoding).
864
cc2ed8f7 865PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 866 later the small subsequent patch to fix an introduced bug.
f951fd57 867
ddfcd446
PH
868PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
869
d45b1de8
PH
870PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
871
872PH/08 An error is now given if message_size_limit is specified negative.
873
38a0a95f 874PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 875 to be given (somewhat) arbitrary names.
38a0a95f 876
a2405d83
JJ
877JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
878 in 4.64-PH/09.
879
880JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
881 miscellaneous code fixes
882
6ea85e9a
PH
883PH/10 Added the log_reject_target ACL modifier to specify where to log
884 rejections.
885
26da7e20
PH
886PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
887 hostname. This is wrong, because it relates to the incoming message (and
888 probably the interface on which it is arriving) and not to the outgoing
889 callout (which could be using a different interface). This has been
890 changed to use the value of the helo_data option from the smtp transport
891 instead - this is what is used when a message is actually being sent. If
892 there is no remote transport (possible with a router that sets up host
893 addresses), $smtp_active_hostname is used.
6ea85e9a 894
14aa5a05 895PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 896 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
897 (a) The code assumed that strncpy() returns a negative number on buffer
898 overflow, which isn't the case. Replaced with Exim's string_format()
899 function.
900 (b) There were several signed/unsigned issues. I just did the minimum
901 hacking in of casts. There is scope for a larger refactoring.
902 (c) The code used strcasecmp() which is not a standard C function.
903 Replaced with Exim's strcmpic() function.
904 (d) The code set only $1; it now sets $auth1 as well.
905 (e) A simple test gave the error "authentication client didn't specify
906 service in request". It would seem that Dovecot has changed its
907 interface. Fortunately there's a specification; I followed it and
908 changed what the client sends and it appears to be working now.
909
ff75a1f7
PH
910PH/13 Added $message_headers_raw to provide the headers without RFC 2047
911 decoding.
912
e6f6568e
PH
913PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
914 address A is aliased to B and C, where B exists and C does not. Without
915 -v the output is "A verified" because verification stops after a
916 successful redirection if more than one address is generated. However,
917 with -v the child addresses are also verified. Exim was outputting "A
918 failed to verify" and then showing the successful verification for C,
919 with its parentage. It now outputs "B failed to verify", showing B's
920 parentage before showing the successful verification of C.
921
d6f6e0dc
PH
922PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
923 look up a TXT record in a specific list after matching in a combined
924 list.
925
322050c2
PH
926PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
927 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
928 they consult the DNS. I had assumed they would set it the way they
929 wanted; and indeed my experiments on Linux seem to show that in some
930 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
931 To be on the safe side, however, I have now made the interface to
932 host_find_byname() similar to host_find_bydns(), with an argument
933 containing the DNS resolver options. The host_find_byname() function now
934 sets these options at its start, just as host_find_bydns() does. The smtp
935 transport options dns_qualify_single and dns_search_parents are passed to
936 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
937 of host_find_byname() use the default settings of RES_DEFNAMES
938 (qualify_single) but not RES_DNSRCH (search_parents).
939
08955dd3
PH
940PH/17 Applied (a modified version of) Nico Erfurth's patch to make
941 spool_read_header() do less string testing, by means of a preliminary
942 switch on the second character of optional "-foo" lines. (This is
943 overdue, caused by the large number of possibilities that now exist.
944 Originally there were few.) While I was there, I also converted the
945 str(n)cmp tests so they don't re-test the leading "-" and the first
946 character, in the hope this might squeeze out yet more improvement.
947
1eccaa59
PH
948PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
949 flag allowing group syntax was set by the header_syntax check but not
950 turned off, possible causing trouble later; (2) The flag was not being
951 set at all for the header_verify test, causing "group"-style headers to
952 be rejected. I have now set it in this case, and also caused header_
953 verify to ignore an empty address taken from a group. While doing this, I
954 came across some other cases where the code for allowing group syntax
955 while scanning a header line wasn't quite right (mostly, not resetting
956 the flag correctly in the right place). These bugs could have caused
957 trouble for malformed header lines. I hope it is now all correct.
958
602e59e5
PH
959PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
960 with the "reply" argument non-NULL. The code, however (which originally
961 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
962 but it didn't always do it. This confused somebody who was copying the
963 code for some other use. I have removed all the tests.
964
411ef850
PH
965PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
966 feature that was used to support insecure browsers during the U.S. crypto
967 embargo. It requires special client support, and Exim is probably the
968 only MTA that supported it -- and would never use it because real RSA is
969 always available. This code has been removed, because it had the bad
970 effect of slowing Exim down by computing (never used) parameters for the
971 RSA_EXPORT functionality.
972
7befa435
PH
973PH/21 On the advice of Timo Sirainen, added a check to the dovecot
974 authenticator to fail if there's a tab character in the incoming data
975 (there should never be unless someone is messing about, as it's supposed
976 to be base64-encoded). Also added, on Timo's advice, the "secured" option
977 if the connection is using TLS or if the remote IP is the same as the
978 local IP, and the "valid-client-cert option" if a client certificate has
979 been verified.
980
48da4259 981PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
982 authenticators. This can be used for authorization after authentication
983 succeeds. (In the case of plaintext, it servers for both authentication
984 and authorization.)
985
48da4259
PH
986PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
987 if any retry times were supplied.
988
d1d5595c
PH
989PH/24 Exim crashed if verify=helo was activated during an incoming -bs
990 connection, where there is no client IP address to check. In this
991 situation, the verify now always succeeds.
992
0ef732d9
PH
993PH/25 Applied John Jetmore's -Mset patch.
994
328895cc
PH
995PH/26 Added -bem to be like -Mset, but loading a message from a file.
996
fd700877
PH
997PH/27 In a string expansion for a processed (not raw) header when multiple
998 headers of the same name were present, leading whitespace was being
999 removed from all of them, but trailing whitespace was being removed only
1000 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1001 before concatenation. Completely empty headers in a concatenation (as
1002 before) are ignored.
fd700877 1003
8dce1a6f
PH
1004PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1005 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1006
17af4a17
PH
1007PH/29 [Removed. This was a change that I later backed out, and forgot to
1008 correct the ChangeLog entry (that I had efficiently created) before
1009 committing the later change.]
f6c332bd
PH
1010
1011PH/30 Exim was sometimes attempting to deliver messages that had suffered
1012 address errors (4xx response to RCPT) over the same connection as other
1013 messages routed to the same hosts. Such deliveries are always "forced",
1014 so retry times are not inspected. This resulted in far too many retries
1015 for the affected addresses. The effect occurred only when there were more
1016 hosts than the hosts_max_try setting in the smtp transport when it had
1017 the 4xx errors. Those hosts that it had tried were not added to the list
1018 of hosts for which the message was waiting, so if all were tried, there
1019 was no problem. Two fixes have been applied:
1020
1021 (i) If there are any address or message errors in an SMTP delivery, none
1022 of the hosts (tried or untried) are now added to the list of hosts
1023 for which the message is waiting, so the message should not be a
1024 candidate for sending over the same connection that was used for a
1025 successful delivery of some other message. This seems entirely
1026 reasonable: after all the message is NOT "waiting for some host".
1027 This is so "obvious" that I'm not sure why it wasn't done
1028 previously. Hope I haven't missed anything, but it can't do any
1029 harm, as the worst effect is to miss an optimization.
1030
1031 (ii) If, despite (i), such a delivery is accidentally attempted, the
1032 routing retry time is respected, so at least it doesn't keep
1033 hammering the server.
1034
c1114884
PH
1035PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1036 in ${readsocket because some servers need this prod.
1037
7a0743eb
PH
1038PH/32 Added some extra debug output when updating a wait-xxx database.
1039
0d85fa3f
PH
1040PH/33 The hint "could be header name not terminated by colon", which has been
1041 given for certain expansion errors for a long time, was not being given
1042 for the ${if def:h_colon_omitted{... case.
1043
1bf43b78
PH
1044PH/34 The spec says: "With one important exception, whenever a domain list is
1045 being scanned, $domain contains the subject domain." There was at least
1046 one case where this was not true.
1047
520de300
PH
1048PH/35 The error "getsockname() failed: connection reset by peer" was being
1049 written to the panic log as well as the main log, but it isn't really
1050 panic-worthy as it just means the connection died rather early on. I have
1051 removed the panic log writing for the ECONNRESET error when getsockname()
1052 fails.
1053
48c7f9e2
PH
1054PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1055 runs only) independently of the message's sender address. This meant
1056 that, if the 4xx error was in fact related to the sender, a different
1057 message to the same recipient with a different sender could confuse
1058 things. In particualar, this can happen when sending to a greylisting
1059 server, but other circumstances could also provoke similar problems.
1060 I have changed the default so that the retry time for these errors is now
1061 based a combination of the sender and recipient addresses. This change
1062 can be overridden by setting address_retry_include_sender=false in the
1063 smtp transport.
1064
99ea1c86
PH
1065PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1066 remote server are returned as part of bounce messages. This was not
1067 happening for LMTP over a pipe (the lmtp transport), but now it is the
1068 same for both kinds of LMTP.
1069
a2042e78
PH
1070PH/38 Despite being documented as not happening, Exim was rewriting addresses
1071 in header lines that were in fact CNAMEs. This is no longer the case.
1072
4fbcfc2e
PH
1073PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1074 and queue runs started by the daemon processed all messages. This has
1075 been fixed so that -R and -S can now usefully be given with -q<time>.
1076
aa41d2de
PH
1077PH/40 Import PCRE release 6.7 (fixes some bugs).
1078
af561417
PH
1079PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1080
3cc66b45
PH
1081PH/42 Give an error if -q is specified more than once.
1082
194cc0e4
PH
1083PH/43 Renamed the variables $interface_address and $interface_port as
1084 $received_ip_address and $received_port, to make it clear that these
1085 values apply to message reception, and not to the outgoing interface when
1086 a message is delivered. (The old names remain recognized, of course.)
1087
a401ddaa
PH
1088PH/44 There was no timeout on the connect() call when using a Unix domain
1089 socket in the ${readsocket expansion. There now is.
1090
4e88a19f
PH
1091PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1092 be meaningful with "accept".
1093
d7d7b289
SC
1094SC/01 Eximstats V1.43
1095 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1096
1097SC/02 Eximstats V1.44
1098 Use a glob alias rather than an array ref in the generated
1099 parser. This improves both readability and performance.
1100
1101SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1102 Collect SpamAssassin and rejection statistics.
1103 Don't display local sender or destination tables unless
1104 there is data to show.
1105 Added average volumes into the top table text output.
1106
1107SC/04 Eximstats V1.46
1108 Collect data on the number of addresses (recipients)
1109 as well as the number of messages.
1110
1111SC/05 Eximstats V1.47
1112 Added 'Message too big' to the list of mail rejection
1113 reasons (thanks to Marco Gaiarin).
1114
1115SC/06 Eximstats V1.48
1116 Mainlog lines which have GMT offsets and are too short to
1117 have a flag are now skipped.
1118
1119SC/07 Eximstats V1.49 (Alain Williams)
1120 Added the -emptyok flag.
1121
1122SC/08 Eximstats V1.50
1123 Fixes for obtaining the IP address from reject messages.
1124
0ea2a468
JJ
1125JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1126 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1127 whitesspace changes from 4.64-PH/27
1128
1129JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1130 match 4.64-PH/13
1131
1132JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1133 are found, allow negative numbers in numeric criteria)
1134
1135JJ/06 exipick.20061117.2, added new $message_body_missing variable
1136
1137JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1138 to match changes made in 4.64-PH/43
1139
8a10f5a4
PH
1140PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1141
30e18802
PH
1142PH/47 Put in an explicit test for a DNS lookup of an address record where the
1143 "domain" is actually an IP address, and force a failure. This locks out
1144 those revolvers/nameservers that support "A-for-A" lookups, in
1145 contravention of the specifications.
1146
55728a4f
PH
1147PH/48 When a host name was looked up from an IP address, and the subsequent
1148 forward lookup of the name timed out, the host name was left in
1149 $sender_host_name, contrary to the specification.
d7d7b289 1150
d7837193
PH
1151PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1152 restricted to single-key lookups, Exim was not diagnosing an error if
1153 * or *@ was used with a query-style lookup.
1154
87054a31
PH
1155PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1156
ea2c01d2
MH
1157MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1158 long ago, but noone interested enough thought of it. Let's just say that
1159 the "1.1" means that there are some new functions that weren't there at
1160 some point in the past.
1161
e4fa6968
PH
1162PH/51 Error processing for expansion failure of helo_data from an smtp
1163 transport during callout processing was broken.
1164
56f5d9bd
PH
1165PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1166 tested/used via the -bh/-bhc/-bs options.
1167
922e1c28
PH
1168PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1169 bug, fixed in subsequent PCRE releases).
1170
21eb6e72
PH
1171PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1172 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1173
a0540757
PH
1174PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1175
944e9e9c 1176
478be7b0
SC
1177Exim version 4.63
1178-----------------
1179
1180SC/01 Use a glob alias rather than an array ref in eximstats generated
1181 parser. This improves both readability and performance.
1182
1183SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1184 Don't display local sender or destination tables in eximstats unless
1185 there is data to show.
1186 Added average volumes into the eximstats top table text output.
1187
1188SC/03 Collect data on the number of addresses (recipients) as well
1189 as the number of messages in eximstats.
1190
2b965a65
TF
1191TF/01 Correct an error in the documentation for the redirect router. Exim
1192 does (usually) call initgroups() when daemonizing.
478be7b0 1193
45b91596
PH
1194TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1195 with consistent privilege compared to when running as a daemon.
478be7b0 1196
c59f5781
TF
1197TF/03 Note in the spec that $authenticated_id is not set for local
1198 submissions from trusted users.
1199
90fc3069
TF
1200TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1201 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1202
6083aca0
TF
1203TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1204 by adding some example configuration directives to the default
1205 configuration file. A little bit of work is required to uncomment the
1206 directives and define how usernames and passwords are checked, but
1207 there is now a framework to start from.
1208
765b530f
PH
1209PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1210 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1211 without this. I don't know how relevant this is to other LDAP libraries.
1212
4e167a8c
PH
1213PH/02 Add the verb name to the "unknown ACL verb" error.
1214
4608d683
PH
1215PH/03 Magnus Holmgren's patch for filter_prepend_home.
1216
b8dc3e4a
PH
1217PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1218
5418e93b
PH
1219PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1220 directory not expanded when it should be if an expanded home directory
1221 was set for the address (which is overridden by the transport).
1222
b4a9bda2
PH
1223PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1224 libradius.
1225
45b91596
PH
1226PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1227 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1228 because it is too late at that time, and has no effect.
1229
5547e2c5
PH
1230PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1231 security issue with \' (bugzilla #107). I could not use the
1232 PQescapeStringConn() function, because it needs a PGconn value as one of
1233 its arguments.
1234
dbcef0ea
PH
1235PH/08 When testing addresses using -bt, indicate those final addresses that
1236 are duplicates that would not cause an additional delivery. At least one
1237 person was confused, thinking that -bt output corresponded to deliveries.
1238 (Suppressing duplicates isn't a good idea as you lose the information
1239 about possibly different redirections that led to the duplicates.)
1240
25257489
PH
1241PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1242 systems where poll() doesn't work, in particular OS X.
1243
c816d124
PH
1244PH/10 Added more information to debugging output for retry time not reached.
1245
a9ccd69a
PH
1246PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1247 operations in malware.c.
1248
75fa1910
PH
1249PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1250 signatures.
1251
a7d7aa58
PH
1252PH/13 If write_rejectlog was set false when logging was sent to syslog with
1253 syslog_duplication set false, log lines that would normally be written
1254 both the the main log and to the reject log were not written to syslog at
1255 all.
1256
42119b09
PH
1257PH/14 In the default configuration, change the use of "message" in ACL warn
1258 statements to "add_header".
1259
41609df5
PH
1260PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1261 not followed by a command (e.g. "seen endif").
1262
a5bd321b
PH
1263PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1264 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1265 latter.
1266
e85a7ad5 1267PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1268 so that it is now:
1269
e85a7ad5
PH
1270 ${if or { \
1271 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1272 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1273 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1274 }{no}{yes}}
1275
e85a7ad5
PH
1276 The Auto-Submitted: and various List- headers are standardised, whereas I
1277 don't think Precedence: ever was.
5dff5817 1278
d8fe1c03
PH
1279PH/18 Refactored debugging code in route_finduser() to show more information,
1280 in particular, the error code if getpwnam() issues one.
1281
16282d2b
PH
1282PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1283 This is apparently needed in addition to the PH/07 change above to avoid
1284 any possible encoding problems.
1285
35d40a98
PH
1286PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1287 but not after initializing Perl.
1288
034d99ab
PH
1289PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1290 output them only if debugging. By default they are written stderr,
1291 apparently, which is not desirable.
1292
6ec97b1b
PH
1293PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1294 queries.
1295
e22ca4ac
JJ
1296JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1297 --not options
1298
1299JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1300
33d73e3b
PH
1301PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1302 authenticated or an ident call has been made. Suppress the default
1303 values for $authenticated_id and $authenticated_sender (but permit -oMai
1304 and -oMas) when testing with -bh.
1305
9ecb03f3
PH
1306PH/24 Re-jigged the order of the tests in the default configuration so that the
1307 tests for valid domains and recipients precede the DNS black list and CSA
1308 tests, on the grounds that those ones are more expensive.
1309
084efe8d
PH
1310PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1311 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1312 This bug exists in every version of Exim that I still have, right back to
1313 0.12.
1314
366fc9f0
PH
1315PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1316 However, an attempt to turn on case-sensitivity in a regex key by
1317 including (?-i) didn't work because the subject string was already
1318 lowercased, and the effects were non-intuitive. It turns out that a
1319 one-line patch can be used to allow (?-i) to work as expected.
1320
c59f5781 1321
c887c79e
TF
1322Exim version 4.62
1323-----------------
1324
1325TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1326 other effects) broke the use of negated acl sub-conditions.
1327
1cce3af8
PH
1328PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1329 patch).
1330
afb3eaaf
PH
1331PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1332 "Deny" causes Exim to reject the incoming connection with a 554 error.
1333 Unfortunately, if there is a major crisis, such as a disk failure,
1334 tcp-wrappers gives "deny", whereas what one would like would be some
1335 kind of temporary error. A kludge has been added to help with this.
1336 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1337 554 error is used if errno is still zero or contains ENOENT (which occurs
1338 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1339 451 error is used.
1340
e173618b
PH
1341PH/03 Add -lutil to the default FreeBSD LIBS setting.
1342
dd16e114
PH
1343PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1344 errors. Otherwise a message that provokes a temporary error (when other
1345 messages do not) can cause a whole host to time out.
1346
f7fd3850
PH
1347PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1348 addresses were routed directly to files or pipes from a redirect router.
1349 File deliveries just didn't batch; pipe deliveries might have suffered
1350 odd errors.
1351
d87df92c
PH
1352PH/06 A failure to get a lock for a hints database would erroneously always say
1353 "Failed to get write lock", even when it was really a read lock.
1354
7e9f683d
PH
1355PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1356 of 0600. This has been changed to use the value of the lockfile_mode
1357 option (which defaults to 0600).
1358
bfad5236
PH
1359PH/08 Applied small patch from the Sieve maintainer.
1360
01c490df
PH
1361PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1362 folder from quota calculations, a direct delivery into this folder messed
1363 up the contents of the maildirsize file. This was because the regex was
1364 used only to exclude .Trash (or whatever) when the size of the mailbox
1365 was calculated. There was no check that a delivery was happening into an
1366 excluded directory. This bug has been fixed by ignoring all quota
1367 processing for deliveries into excluded directories.
1368
d6629cdc
PH
1369PH/10 Added the maildirfolder_create_regex option to appendfile.
1370
1cce3af8 1371
214e2000
PH
1372Exim version 4.61
1373-----------------
1374
1375PH/01 The code for finding all the local interface addresses on a FreeBSD
1376 system running IPv6 was broken. This may well have applied to all BSD
1377 systems, as well as to others that have similar system calls. The broken
1378 code found IPv4 interfaces correctly, but gave incorrect values for the
1379 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1380 that it would not match correctly against @[] and not recognize the IPv6
1381 addresses as local.
1382
f9daeae0
PH
1383PH/02 The ipliteral router was not recognizing addresses of the form user@
1384 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1385
7e66e54d
PH
1386PH/03 Added disable_ipv6.
1387
c8ea1597
PH
1388PH/04 Changed $reply_address to use the raw form of the headers instead of the
1389 decoded form, because it is most often used to construct To: headers
1390 lines in autoreplies, and the decoded form may well be syntactically
1391 invalid. However, $reply_address has leading white space removed, and all
1392 newlines turned into spaces so that the autoreply transport does not
1393 grumble.
1394
911f6fde
PH
1395PH/05 If group was specified without a user on a router, and no group or user
1396 was specified on a transport, the group from the router was ignored.
1397
47ca6d6c
PH
1398PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1399 for visible compile-time settings that can be used to change these
1400 numbers, for those that want even more. Backwards compatibility with old
1401 spool files has been maintained. However, going back to a previous Exim
1402 release will lost any variables that are in spool files.
1403
ed0e9820
PH
1404PH/07 Two small changes when running in the test harness: increase delay when
1405 passing a TCP/IP connection to a new process, in case the original
1406 process has to generate a bounce, and remove special handling of
1407 127.0.0.2 (sic), which is no longer necessary.
1408
eff37e47
PH
1409PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1410 be the same on different OS.
1411
1921d2ea
PH
1412PH/09 Moved a debug statement in filter processing to avoid a race problem when
1413 testing.
1414
b3f69ca8
JJ
1415JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1416 whether --show-vars was specified or not
1417
1418JJ/02 exipick: Added support for new ACL variable spool format introduced
1419 in 4.61-PH/06
1420
424a1c63
PH
1421PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1422 syntactically invalid From: or Reply-to: line, and a filter used this to
1423 generate an autoreply, and therefore failed to obtain an address for the
1424 autoreply, Exim could try to deliver to a non-existent relative file
1425 name, causing unrelated and misleading errors. What now happens is that
1426 it logs this as a hard delivery error, but does not attempt to create a
1427 bounce message.
1428
7a100415
PH
1429PH/11 The exinext utility has a -C option for testing purposes, but although
1430 the given file was scanned by exinext itself; it wasn't being passed on
1431 when Exim was called.
1432
19b9dc85
PH
1433PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1434 an end-of-file indication when reading a command response.
1435
309bd837
PH
1436PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1437 compiled. In many other places in Exim, IPv6 addresses are always
1438 recognized, so I have changed this. It also means that IPv4 domain
1439 literals of the form [IPV4:n.n.n.n] are now always recognized.
1440
59e82a2a
PH
1441PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1442 used if the router is not running as root, for example, when verifying at
1443 ACL time, or when using -bh. The debugging output from this situation was
1444 non-existent - all you got was a failure to exec. I have made two
1445 changes:
1446
1447 (a) Failures to set uid/gid, the current directory, or a process leader
1448 in a subprocess such as that created by queryprogram now generate
1449 suitable debugging ouput when -d is set.
1450
1451 (b) The queryprogram router detects when it is not running as root,
1452 outputs suitable debugging information if -d is set, and then runs
1453 the subprocess without attempting to change uid/gid.
1454
9edc04ce
PH
1455PH/15 Minor change to Makefile for building test_host (undocumented testing
1456 feature).
1457
1349e1e5
PH
1458PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1459 additional section of a DNS packet that returns MX or SRV records.
1460 Instead, it always explicitly searches for A/AAAA records. This avoids
1461 major problems that occur when a DNS server includes only records of one
1462 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1463 fixed another bug: if SRV records were looked up and the corresponding
1464 address records were *not* found in the additional section, the port
1465 values from the SRV records were lost.
1466
ea49d0e1
PH
1467PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1468 using the correct key (the original address) when searching the retry
1469 rules in order to find which one to use for generating the retry hint.
1470
064a94c9
PH
1471PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1472 adding the default one. Similarly, if it contains a Reply-To: header, the
1473 errors_reply_to option, if set, is not used.
1474
727071f8
PH
1475PH/19 When calculating a retry time, Exim used to measure the "time since
1476 failure" by looking at the "first failed" field in the retry record. Now
1477 it does not use this if it is later than than the arrival time of the
1478 message. Instead it uses the arrival time. This makes for better
1479 behaviour in cases where some deliveries succeed, thus re-setting the
1480 "first failed" field. An example is a quota failure for a huge message
1481 when small messages continue to be delivered. Without this change, the
1482 "time since failure" will always be short, possible causing more frequent
1483 delivery attempts for the huge message than are intended.
dd16e114 1484 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1485
f78eb7c6
PH
1486PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1487 $1, $2, $3) because the numerical variables can be reset during some
1488 expansion items (e.g. "match"), thereby losing the authentication data.
1489
21c28500
PH
1490PH/21 Make -bV show the size of off_t variables so that the test suite can
1491 decide whether to run tests for quotas > 2G.
1492
1493PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1494 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1495 filecount value is greater than 2G or if a quota value is greater than 2G
1496 on a system where the size of off_t is not greater than 4, a panic error
1497 is given.
1498
1688f43b
PH
1499PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1500 never match. The debug and -bh output now contains an explicit error
1501 message indicating a malformed IPv4 address or mask.
1502
1503PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1504 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1505 PH/23 above applies.
1506
9675b384
PH
1507PH/25 Do not write to syslog when running in the test harness. The only
1508 occasion when this arises is a failure to open the main or panic logs
1509 (for which there is an explicit test).
1510
6a3f1455
PH
1511PH/26 Added the /no_tell option to "control=freeze".
1512
dac79d3e
PH
1513PH/27 If a host name lookup failed very early in a connection, for example, if
1514 the IP address matched host_lookup and the reverse lookup yielded a name
1515 that did not have a forward lookup, an error message of the form "no IP
1516 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1517 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1518
5977a0b3
PH
1519PH/28 An enabling patch from MH: add new function child_open_exim2() which
1520 allows the sender and the authenticated sender to be set when
1521 submitting a message from within Exim. Since child_open_exim() is
1522 documented for local_scan(), the new function should be too.
1523
c91535f3
PH
1524PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1525 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1526 results in an empty string is now treated as unset.
1527
0d46a8c8
PH
1528PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1529
278c6e6c
PH
1530PH/31 Added sender_verify_fail logging option.
1531
2cbb4081
PH
1532PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1533 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1534 tidied the source and removed it altogether.
1535
3eef829e
PH
1536PH/33 When a queue run was abandoned because the load average was too high, a
1537 log line was always written; now it is written only if the queue_run log
1538 selector is set. In addition, the log line for abandonment now contains
1539 information about the queue run such as the pid. This is always present
1540 in "start" and "stop" lines but was omitted from the "abandon" line.
1541
1ab95fa6
PH
1542PH/34 Omit spaces between a header name and the colon in the error message that
1543 is given when verify = headers_syntax fails (if there are lots of them,
1544 the message gets confusing).
1545
230205fc
PH
1546PH/35 Change the default for dns_check_names_pattern to allow slashes within
1547 names, as there are now some PTR records that contain slashes. This check
1548 is only to protect against broken name servers that fall over on strange
1549 characters, so the fact that it applies to all lookups doesn't matter.
1550
75e0e026
PH
1551PH/36 Now that the new test suite is complete, we can remove some of the
1552 special code in Exim that was needed for the old test suite. For example,
1553 sorting DNS records because real resolvers return them in an arbitrary
1554 order. The new test suite's fake resolver always returns records in the
1555 same order.
1556
1557PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1558 bounces) except when queue_only is set, to avoid logging races between
1559 the different processes.
1560
145396a6
PH
1561PH/38 Panic-die if .include specifies a non-absolute path.
1562
3cd34f13
PH
1563PH/39 A tweak to the "H" retry rule from its user.
1564
11121d3d
JJ
1565JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1566 a label. They prevented compilation on older perls.
1567
1568JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1569 a warning to be raised on newish perls.
1570
1571JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1572 on queue. Changes to match documented behaviour of showing count of
1573 messages matching specified criteria.
1574
8def5aaf
PH
1575PH/40 Changed the default ident timeout from 30s to 5s.
1576
929ba01c
PH
1577PH/41 Added support for the use of login_cap features, on those BSD systems
1578 that have them, for controlling the resources used by pipe deliveries.
1579
2632889e
PH
1580PH/42 The content-scanning code uses fopen() to create files in which to put
1581 message data. Previously it was not paying any attention to the mode of
1582 the files. Exim runs with umask(0) because the rest of the code creates
1583 files with open(), and sets the required mode explicitly. Thus, these
1584 files were ending up world-writeable. This was not a big issue, because,
1585 being within the spool directory, they were not world-accessible. I have
1586 created a function called modefopen, which takes an additional mode
1587 argument. It sets umask(777), creates the file, chmods it to the required
1588 mode, then resets the umask. All the relevant calls to fopen() in the
1589 content scanning code have been changed to use this function.
1590
944a9c55
PH
1591PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1592 to 24 hours. This avoids potential overflow problems when processing G
1593 and H retry rules. I suspect nobody ever tinkers with this value.
1594
4a23603b
PH
1595PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1596
4730f942
PH
1597PH/45 When the plaintext authenticator is running as a client, the server's
1598 challenges are checked to ensure they are valid base64 strings. By
1599 default, the authentication attempt is cancelled if an invalid string is
1600 received. Setting client_ignore_invalid_base64 true ignores these errors.
1601 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1602 they are received. Thus, the responses can be made to depend on the
1603 challenges. If an invalid string is ignored, an empty string is placed in
1604 the variable.
1605
30dba1e6
PH
1606PH/46 Messages that are created by the autoreply transport now contains a
1607 References: header, in accordance with RFCs 2822 and 3834.
1608
382afc6b
PH
1609PH/47 Added authenticated_sender_force to the smtp transport.
1610
a86229cf
PH
1611PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1612
50c99ba6
PH
1613PH/49 Installed latest patch from the Sieve maintainer.
1614
d35e429d
PH
1615PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1616 was also set, the appendfile transport was unnecessarily scanning a
1617 directory of message files (e.g. for maildir delivery) to find the count
1618 of files (along with the size), even though it did not need this
1619 information. It now does the scan only if it needs to find either the
1620 size of the count of files.
1621
f90d018c
PH
1622PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1623
75def545
PH
1624PH/52 Two bugs concerned with error handling when the smtp transport is
1625 used in LMTP mode:
1626
1627 (i) Exim was not creating retry information for temporary errors given
1628 for individual recipients after the DATA command when the smtp transport
1629 was used in LMTP mode. This meant that they could be retried too
1630 frequently, and not timed out correctly.
1631
1632 (ii) Exim was setting the flag that allows error details to be returned
1633 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1634 recipients that were returned after the DATA command.
1635
1636PH/53 This is related to PH/52, but is more general: for any failing address,
1637 when detailed error information was permitted to be returned to the
1638 sender, but the error was temporary, then after the final timeout, only
1639 "retry timeout exceeded" was returned. Now it returns the full error as
1640 well as "retry timeout exceeded".
1641
c46782ef
PH
1642PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1643 do this, and (what is worse) MTAs that accept it.
1644
71fafd95
PH
1645PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1646 will now be deprecated.
1647
2c5db4fd
PH
1648PH/56 New os.c-cygwin from the Cygwin maintainer.
1649
9cf6b11a
JJ
1650JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1651 formats (previously only available in exim formats via -bpr, -bpru,
1652 and -bpra. Now also available in native and exiqgrep formats)
1653
1654JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1655 with very large, slow to parse queues
1656
1657JJ/08 exipick: added ! as generic prefix to negate any criteria format
1658
1659JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1660
898d150f
PH
1661PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1662 responses to authentication challenges, though it was showing the
1663 challenges; (ii) I've removed the CR characters from the debug output for
1664 SMTP output lines.
1665
46218253
PH
1666PH/58 Allow for the insertion of a newline as well as a space when a string
1667 is turned into more than one encoded-word during RFC 2047 encoding. The
1668 Sieve code now uses this.
1669
e97957bc
PH
1670PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1671 data_4xx, lost_connection, tls_required.
1672
81e509d7
PH
1673PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1674 message was being sent as an SMTP response.
1675
3d240ff7
PH
1676PH/61 Add -l and -k options to exicyclog.
1677
b37c4101
PH
1678PH/62 When verifying, if an address was redirected to one new address, so that
1679 verification continued, and the new address failed or deferred after
1680 having set something in $address_data, the value of $address_data was not
1681 passed back to the ACL. This was different to the case when no
1682 redirection occurred. The value is now passed back in both cases.
1683
79378e0f
PH
1684PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1685 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1686 use login_cap.h, so on its own it isn't the distinguishing feature. The
1687 new name refers directly to the setclassresources() function.
1688
e49c7bb4
PH
1689PH/65 Added configuration files for NetBSD3.
1690
d114ec46
PH
1691PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1692
f3d7df6c
PH
1693PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1694 is preferred over IPv4.
1695
715ab376
PH
1696PH/68 The bounce_return_message and bounce_return_body options were not being
1697 honoured for bounces generated during the reception of non-SMTP messages.
1698 In particular, this applied to messages rejected by the ACL. This bug has
1699 been fixed. However, if bounce_return_message is true and bounce_return_
1700 body is false, the headers that are returned for a non-SMTP message
1701 include only those that have been read before the error was detected.
1702 (In the case of an ACL rejection, they have all been read.)
1703
6b31b150
PH
1704PH/69 The HTML version of the specification is now built in a directory called
1705 spec_html instead of spec.html, because the latter looks like a path with
1706 a MIME-type, and this confuses some software.
1707
1708PH/70 Catch two compiler warnings in sieve.c.
1709
d515a917
PH
1710PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1711 function verify_get_ident() calls ip_connect() to connect a socket, but
1712 if the "connect()" function timed out, ip_connect() used to close the
1713 socket. However, verify_get_ident() also closes the socket later, and in
1714 between Exim writes to the log, which may get opened at this point. When
1715 the socket was closed in ip_connect(), the log could get the same file
1716 descriptor number as the socket. This naturally causes chaos. The fix is
1717 not to close the socket in ip_connect(); the socket should be closed by
1718 the function that creates it. There was only one place in the code where
1719 this was missing, in the iplookup router, which I don't think anybody now
1720 uses, but I've fixed it anyway.
1721
9b8fadde
PH
1722PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1723 well as to direct DNS lookups. Otherwise the handling of names in host
1724 lists is inconsistent and therefore confusing.
1725
214e2000 1726
5de37277
PH
1727Exim version 4.60
1728-----------------
1729
cc38ddbf
PH
1730PH/01 Two changes to the default runtime configuration:
1731
1732 (1) Move the checks for relay_from_hosts and authenticated clients from
1733 after to before the (commented out) DNS black list checks.
1734
1735 (2) Add control=submission to the relay_from_hosts and authenticated
1736 clients checks, on the grounds that messages accepted by these
1737 statements are most likely to be submissions.
5de37277 1738
72fdd6ae
PH
1739PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1740
1741 (1) Generate an error if the third argument for the ${prvs expansion is
1742 not a single digit.
1743
1744 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1745 string.
1746
1747 (3) Reset the variables that are obtained from the first argument of
1748 ${prvscheck and used in the second argument before leaving the code,
1749 because their memory is reclaimed, so using them afterwards may do
1750 silly things.
1751
1752 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1753 one (it's much easier than Tom thought :-).
1754
1755 (5) Because of (4), we can now allow for the use of $prvscheck_result
1756 inside the third argument.
cb9328de 1757
cb741023
PH
1758PH/03 For some reason, the default setting of PATH when running a command from
1759 a pipe transport was just "/usr/bin". I have changed it to
1760 "/bin:/usr/bin".
1761
f174f16e
PH
1762PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1763 anything to be listed in the output from -bV.
b2f5a032 1764
c25242d7
PH
1765PH/05 When a filter generated an autoreply, the entire To: header line was
1766 quoted in the delivery log line, like this:
1767
1768 => >A.N.Other <ano@some.domain> <original@ddress> ...
1769
1770 This has been changed so that it extracts the operative address. There
1771 may be more than one such address. If so, they are comma-separated, like
1772 this:
1773
1774 => >ano@some.domain,ona@other.domain <original@ddress> ...
1775
82c19f95
PH
1776PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1777 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1778 not being looked up in the rDNS to get a host name, Exim was showing the
1779 IP address twice in Received: lines, even though the IP addresses were
1780 identical. For example:
1781
1782 Received: from [1.2.3.4] (helo=[1.2.3.4])
1783
1784 However, if the real host name was known, it was omitting the HELO data
1785 if it matched the actual IP address. This has been tidied up so that it
1786 doesn't show the same IP address twice.
1787
d7ffbc12
PH
1788PH/07 When both +timestamp and +memory debugging was on, the value given by
1789 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1790 called by the debug printing, thereby overwriting the timestamp buffer.
1791 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1792
9f526266
PH
1793PH/08 When the original message was included in an autoreply transport, it
1794 always said "this is a copy of the message, including all the headers",
1795 even if body_only or headers_only was set. It now gives an appropriate
1796 message.
1797
87fcc8b9
PH
1798PH/09 Applied a patch from the Sieve maintainer which:
1799
1800 o fixes some comments
1801 o adds the (disabled) notify extension core
1802 o adds some debug output for the result of if/elsif tests
1803 o points to the current vacation draft in the documentation
1804 and documents the missing references header update
1805
1806 and most important:
1807
1808 o fixes a bug in processing the envelope test (when testing
1809 multiple envelope elements, the last element determinted the
1810 result)
1811
456682f5
PH
1812PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1813 Electronic Mail") by including:
1814
1815 Auto-submitted: auto-generated
1816
1817 in the messages that it generates (bounce messages and others, such as
1818 warnings). In the case of bounce messages for non-SMTP mesages, there was
1819 also a typo: it was using "Auto_submitted" (underscore instead of
1820 hyphen). Since every message generated by Exim is necessarily in response
1821 to another message, thes have all been changed to:
1822
1823 Auto-Submitted: auto-replied
1824
1825 in accordance with these statements in the RFC:
1826
1827 The auto-replied keyword:
1828
1829 - SHOULD be used on messages sent in direct response to another
1830 message by an automatic process,
1831
1832 - MUST NOT be used on manually-generated messages,
1833
1834 - MAY be used on Delivery Status Notifications (DSNs) and Message
1835 Disposition Notifications (MDNs),
1836
1837 - MUST NOT be used on messages generated by automatic or periodic
1838 processes, except for messages which are automatic responses to
1839 other messages.
1840
3e46c1aa
PH
1841PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1842 to the default Received: header definition.
456682f5 1843
49826d12
PH
1844PH/12 Added log selector acl_warn_skipped (default on).
1845
eba0c039
PH
1846PH/13 After a successful wildlsearch lookup, discard the values of numeric
1847 variables because (a) they are in the wrong storage pool and (b) even if
1848 they were copied, it wouldn't work properly because of the caching.
1849
a0d6ba8a
PH
1850PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1851 checking when decoding. Apparently there are clients that generate
1852 overlong encoded strings. Why am I not surprised?
1853
f0917727
PH
1854PH/15 If the first argument of "${if match_address" was not empty, but did not
1855 contain an "@" character, Exim crashed. Now it writes a panic log message
1856 and treats the condition as false.
1857
096fee00
PH
1858PH/16 In autoreply, treat an empty string for "once" the same as unset.
1859
024bd3c2
PH
1860PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1861 extension "envelope-auth". The code is finished and in agreement with
1862 other implementations, but there is no documentation so far and in fact,
1863 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1864 not changing the active code.
1865
1866 Print executed "if" and "elsif" statements when debugging is used. This
1867 helps a great deal to understand what a filter does.
1868
1869 Document more things not specified clearly in RFC3028. I had all this
1870 sorted out, when out of a sudden new issues came to my mind. Oops."
1871
df199fec
PH
1872PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1873 (Bugzilla #53).
1874
d27f1df3
PH
1875PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1876 canonical form (as documented). However, after a host name lookup from
1877 the IP address, check_host() was doing a simple string comparison with
1878 addresses acquired from the DNS when checking that the found name did
1879 have the original IP as one of its addresses. Since any found IPv6
1880 addresses are likely to be in abbreviated form, the comparison could
1881 fail. Luckily, there already exists a function for doing the comparison
1882 by converting both addresses to binary, so now that is used instead of
1883 the text comparison.
1884
96776534
PH
1885PH/20 There was another similar case to PH/19, when a complete host name was
1886 given in a host list; looking up its IP address could give an abbreviated
1887 form, whereas the current host's name might or might not be abbreviated.
1888 The same fix has been applied.
1889
5de37277 1890
9a799bc0
PH
1891Exim version 4.54
1892-----------------
1893
1894PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1895 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1896 It now does.
1897
99a4b039
PH
1898PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1899 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1900
1901PH/03 Typo: missing ".o" in src/pcre/Makefile.
1902
4b233853
PH
1903PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1904 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1905 Also, for "Auto-Submitted", treat anything other than "no" as
1906 non-personal, in accordance with RFC 3834. (Previously it treated
1907 anything starting "auto-" as non-personal.)
1908
8857ccfd
PH
1909TF/01 The control=submission/name=... option had a problem with syntax
1910 errors if the name included a slash character. The /name= option
1911 now slurps the rest of the string, so it can include any characters
1912 but it must come last in the list of options (after /sender_retain
1913 or /domain=).
1914
433a2980
PH
1915PH/05 Some modifications to the interface to the fake nameserver for the new
1916 testing suite.
1917
3e46c1aa 1918
9a799bc0 1919
e3a311ba
TK
1920Exim version 4.53
1921-----------------
1922
1923TK/01 Added the "success_on_redirect" address verification option. See
1924 NewStuff for rationale and an example.
1925
13b685f9
PH
1926PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1927
395ff96d
PH
1928PH/02 Patch to exigrep to allow it to work on syslog lines.
1929
5b68f6e4
PH
1930PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1931 fread() to skip over the body file's header line, because in Cygwin the
1932 header line is locked and is inaccessible.
1933
1ab52c69
PH
1934PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1935 co-exist for some time) to make it clear that it is the Exim ID that is
1936 referenced, not the Message-ID: header line.
1937
b07e6aa3
PH
1938PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1939 string_format() function, because snprintf() does not exist on all
1940 operating systems.
1941
254e032f
PH
1942PH/06 The use of forbid_filter_existstest now also locks out the use of the
1943 ${stat: expansion item.
1944
3af76a81
PH
1945PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1946 protocol synchronization error", to keep the pedants happy.
1947
2548ba04
PH
1948PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1949 well as for IRIX systems, when gcc is being used. See the host.c source
1950 file for comments.
1951
b6c6011d
PH
1952PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1953
cf39cf57
PH
1954PH/10 Named domain lists were not working if used in a queue_smtp_domains
1955 setting.
1956
f1513293
PH
1957PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1958 transport and to the smtp transport in LMTP mode.
1959
727549a4
PH
1960TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1961
af46795e
PH
1962PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1963 run a filter in a subprocess. This could lead to confusion in subsequent
1964 lookups in the parent process. There should also be a search_tidyup() at
1965 the end of the subprocess.
1966
d7b47fd0
PH
1967PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1968 only if the host matched helo_try_verify_hosts, which caused the
1969 verification to occur when the EHLO/HELO command was issued. The ACL just
1970 tested the remembered result. Now, if a previous verification attempt has
1971 not happened, "verify = helo" does it there and then.
1972
ee744174
JJ
1973JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1974
b582ab87
PH
1975TK/03 Fix log output including CR from clamd.
1976
41a13e0a
PH
1977PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1978 exist provoked a memory error which could cause a segfault.
1979
f625cc5a
PH
1980PH/15 Installed PCRE 6.2
1981
1982PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1983
21f7af35
PH
1984PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1985 of the problem. Specifically, suggested +O2 rather than +O1 for the
1986 HP-UX compiler.
1987
31480e42
PH
1988PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1989
2d280592
PH
1990PH/20 If a delivery was routed to a non-standard port by means of an SRV
1991 record, the port was not correctly logged when the outgoing_port log
1992 selector was set (it logged the transort's default port).
1993
7cd1141b
PH
1994PH/21 Added support for host-specific ports to manualroute, queryprogram,
1995 fallback_hosts, and "hosts" in the smtp transport.
1996
1997PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1998 host errors such as "Connection refused".
1999
750af86e
PH
2000PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2001 authentication with radiusclient 0.4.9:
2002
2003 - Error returned from rc_read_config was caught wrongly
2004 - Username/password not passed on to radius server due to wrong length.
2005
2006 The presumption is that some radiusclient API changes for 4.51/PH/17
2007 were not taken care of correctly. The code is still untested by me (my
2008 Linux distribution still has 0.3.2 of radiusclient), but it was
2009 contributed by a Radius user.
2010
2011PH/24 When doing a callout, the value of $domain wasn't set correctly when
2012 expanding the "port" option of the smtp transport.
2013
4304270b
TK
2014TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2015 while reading a MIME header. Thanks to Tom Hughes for a patch.
2016
750af86e
PH
2017PH/24 Include config.h inside local_scan.h so that configuration settings are
2018 available.
2019
64ffc24f
PH
2020PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2021 that in an ACL for RCPT (for example), you can examine exactly what was
2022 received.
2023
5dd9625b
PH
2024PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2025 commands, but it was not correctly comparing the address with the actual
2026 client host address. Thus, it would show the EHLO address in Received:
2027 header lines when this was not necessary.
2028
5591031b
PH
2029PH/27 Added the % operator to ${eval:}.
2030
ba18e66a
PH
2031PH/28 Exim tries to create and chdir to its spool directory when it starts;
2032 it should be ignoring failures (because with -C, for example, it has lost
2033 privilege). It wasn't ignoring creation failures other than "already
2034 exists".
2035
9cec981f
PH
2036PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2037 -bV or -d is used.
2038
aa2b5c79
PH
2039PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2040 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2041 too many continuations, the temporary file was not being removed, and the
2042 return code was incorrect.
aa2b5c79 2043
48a53b7f
PH
2044PH/31 Missing "BOOL" in function definition in filtertest.c.
2045
1c59d63b
PH
2046PH/32 Applied Sieve patches from the maintainer.
2047
671012da
TK
2048TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2049
1509d3a8
PH
2050PH/33 Added "verify = not_blind".
2051
2052PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2053 Local/Makefile (with some defaults set). These are used in built scripts
2054 such as exicyclog, but they have never been used in the exim_install
2055 script (though there are many overriding facilities there). I have
2056 arranged that the exim_install script now takes note of these two
2057 settings.
2058
2059PH/35 Installed configuration files for Dragonfly.
2060
2fe1a124
PH
2061PH/36 When a locally submitted message by a trusted user did not contain a
2062 From: header, and the sender address was obtained from -f or from an SMTP
2063 MAIL command, and the trusted user did not use -F to supply a sender
2064 name, $originator_name was incorrectly used when constructing a From:
2065 header. Furthermore, $originator_name was used for submission mode
2066 messages from external hosts without From: headers in a similar way,
2067 which is clearly wrong.
2068
8800895a
PH
2069PH/37 Added control=suppress_local_fixups.
2070
ccfdb010
PH
2071PH/38 When log_selector = +received_sender was set, and the addition of the
2072 sender made the log line's construction buffer exactly full, or one byte
2073 less than full, an overflow happened when the terminating "\n" was
2074 subsequently added.
2075
1130bfb0
PH
2076PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2077 when the result of a list match is failure because a DNS lookup failed.
2078
ebcb507f
PH
2079PH/40 RM_COMMAND is now used in the building process.
2080
c35e155c
PH
2081PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2082 the "build-* directories that it finds.
2083
95d1f782
PH
2084PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2085 address in a domain literal was a prefix of an interface address.
2086
fd6de02e
PH
2087PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2088 when verifying a sender address, unless rewrite_headers is false.
2089
58de37c5
PH
2090PH/44 Wrote a long comment about why errors_to addresses are verified as
2091 recipients, not senders.
2092
261cf466
TF
2093TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2094 the ratelimit ACL was added.
2095
3ee512ff
PH
2096PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2097
e08c430f
PH
2098PH/46 Added extra information about PostgreSQL errors to the error string.
2099
bef5a11f
PH
2100PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2101 avoiding the need to install special zones in a real server. This is
2102 backwards compatible; if it can't find the fake resolver, it drops back.
2103 Thus, both old and new test suites can be run.
2104
7546de58
TF
2105TF/02 Added util/ratelimit.pl
2106
e5d5a95f
TF
2107TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2108 clock is set back in time.
2109
2e88a017
TF
2110TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2111 Candler <B.Candler@pobox.com>.
2112
a5f65aa4
TF
2113TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2114 OK for addresses that are the result of redirections.
2115
e7726cbf
PH
2116PH/48 A number of further additions for the benefit of the new test suite,
2117 including a fake gethostbyname() that interfaces to the fake DNS resolver
2118 (see PH/47 above).
2119
a7fdad5b
TF
2120TF/06 The fix for widen_domains has also been applied to qualify_single and
2121 search_parents which are the other dnslookup options that can cause
2122 header rewrites.
2123
6af56900
PH
2124PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2125 type ("H").
2126
0925ede6
PH
2127PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2128
66afa403
TF
2129TF/07 Exim produced the error message "an SRV record indicated no SMTP
2130 service" if it encountered an MX record with an empty target hostname.
2131 The message is now "an MX or SRV record indicated no SMTP service".
2132
0154e85a
TF
2133TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2134 if the DNS of the sending site is misconfigured. This is quite a
2135 common situation. This change restores the behaviour of treating a
2136 helo verification defer as a failure.
2137
16f12c76
PH
2138PH/51 If self=fail was set on a router, the bounce message did not include the
2139 actual error message.
2140
bbe902f0 2141
e5a9dba6
PH
2142Exim version 4.52
2143-----------------
2144
2145TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2146
22c3b60b
PH
2147PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2148 command itself ended in error, the underlying message about the transport
2149 filter timeout was being overwritten with the pipe command error. Now the
2150 underlying error message should be appended to the second error message.
2151
06a9b4b5
PH
2152TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2153
c1ac6996
PH
2154PH/02 Reduce the amount of output that "make" produces by default. Full output
2155 can still be requested.
2156
9c7a242c
PH
2157PH/03 The warning log line about a condition test deferring for a "warn" verb
2158 was being output only once per connection, rather than after each
2159 occurrence (because it was using the same function as for successful
2160 "warn" verbs). This seems wrong, so I have changed it.
2161
87ba3f5f
PH
2162TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2163 it should not have, which might have caused a crash in the right
2164 circumstances, but probably never did.
2165
2166PH/04 Installed a modified version of Tony Finch's patch to make submission
2167 mode fix the return path as well as the Sender: header line, and to
2168 add a /name= option so that you can make the user's friendly name appear
2169 in the header line.
2170
29aba418
TF
2171TF/03 Added the control = fakedefer ACL modifier.
2172
fe0dab11
TF
2173TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2174 Mark Lowes for thorough testing.
870f6ba8 2175
11d337a4
TK
2176TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2177
2178TK/03 Merged latest SRS patch from Miles Wilton.
2179
415c8f3b
PH
2180PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2181 with the definition in sysexits.h (which is #included earlier).
2182 Fortunately, Exim does not actually use EX_OK. The code used to try to
2183 preserve the sysexits.h value, by assumimg that macro definitions were
2184 scanned for macro replacements. I have been disabused of this notion,
2185 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2186
958541e9
PH
2187PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2188 in the smtp transport. When a block could not be written in a single
2189 write() function, the timeout was being re-applied to each part-write.
2190 This seems wrong - if the receiver was accepting one byte at a time it
2191 would take for ever. The timeout is now adjusted when this happens. It
2192 doesn't have to be particularly precise.
2193
c206415f
TK
2194TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2195 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2196
2a4be8f9
PH
2197PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2198 without a domain if the check to <postmaster@domain> fails.
2199
1cba11c5
SC
2200SC/01 Eximstats: added -xls and the ability to specify output files
2201 (patch written by Frank Heydlauf).
2202
2203SC/02 Eximstats: use FileHandles for outputing results.
2204
2205SC/03 Eximstats: allow any combination of xls, txt, and html output.
2206
2207SC/04 Eximstats: fixed display of large numbers with -nvr option
2208
2209SC/05 Eximstats: fixed merging of reports with empty tables.
2210
2211SC/06 Eximstats: added the -include_original_destination flag
2212
2213SC/07 Eximstats: removed tabs and trailing whitespace.
2214
1005d00e
TK
2215TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2216
2217TK/06 MBOX spool code: Add real "From " MBOX separator line
2218 so the .eml file is really in mbox format (even though
2219 most programs do not really care). Patch from Alex Miller.
2220
2221TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2222 The latter is generated from $received_to and is only set if the
2223 message has one envelope recipient. SA can use these headers,
2224 obviously out-of-the-box. Patch from Alex Miller.
2225
9b4768fa
PH
2226PH/08 The ${def test on a variable was returning false if the variable's
2227 value was "0", contrary to what the specification has always said!
2228 The result should be true unless the variable is empty.
2229
2230PH/09 The syntax error of a character other than { following "${if
2231 def:variable_name" (after optional whitespace) was not being diagnosed.
2232 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2233 accidental colon was present, for example, could give incorrect results.
2234
0d7eb84a
PH
2235PH/10 Tidied the code in a number of places where the st_size field of a stat()
2236 result is used (not including appendfile, where other changes are about
2237 to be made).
2238
2239PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2240 This involved changing a lot of size variables from int to off_t. It
2241 should work with maildirs and everything.
2242
40727bee
TK
2243TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2244 spamd dying while we are connected to it.
2245
554d2369
TF
2246TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2247 <jgh@wizmail.org>
2248
1f922db1
PH
2249PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2250 function for BDB 4.3.
2251
ef213c3b
PH
2252PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2253
8ac170f3
PH
2254PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2255 the sources for PCRE have been re-arranged and more files are now
2256 involved.
2257
b1c749bb
PH
2258PH/15 The code I had for printing potentially long long variables in PH/11
2259 above was not the best (it lost precision). The length of off_t variables
2260 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2261 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2262 to be "long long int" or "long int". This is needed for the internal
2263 formatting function string_vformat().
b1c749bb 2264
4aac9b49
PH
2265PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2266 the configuration file to be ":syslog", then the script "guesses" where
2267 the logs files are, rather than using the compiled in default. In our
2268 case the guess is not the same as the compiled default, so the script
2269 suddenly stopped working when I started to use syslog. The patch checks
2270 to see if log_file_path is "". If so, it attempts to read it from exim
2271 with no configuration file to get the compiled in version, before it
2272 falls back to the previous guessing code."
2273
294520c8
TK
2274TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2275 implementing BATV in an Exim configuration. See NewStuff for the gory
2276 details.
2277
5bd022fe
PH
2278PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2279 Makefile that are specific to HP-UX.
2280
90e9ce59
PH
2281PH/18 If the "use_postmaster" option was set for a recipient callout together
2282 with the "random" option, the postmaster address was used as the MAIL
2283 FROM address for the random test, but not for the subsequent recipient
2284 test. It is now used for both.
2285
5ea81592
PH
2286PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2287 patch removes a few documentation additions to RFC 3028, because the
2288 latest draft now contains them. It adds the new en;ascii-case comparator
2289 and a new error check for 8bit text in MIME parts. Comparator and
2290 require names are now matched exactly. I enabled the subaddress
2291 extension, but it is not well tested yet (read: it works for me)."
2292
c6c2dc1d
PH
2293PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2294 rework some of the code of TK/09 above to avoid the hardwired use of
2295 "%lld" and "long long". Replaced the call to snprintf() with a call to
2296 string_vformat().
2297
fffffe4c
PH
2298PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2299 records point to non-existent hosts", "retry timeout exceeded", and
2300 "retry time not reached for any host after a long failure period".
ca02eafb 2301
9a26b6b2
PH
2302PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2303 experimental DomainKeys support:
2304
2305 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2306 (2) On an error such as an illegally used "control", the wrong name for
2307 the control was given.
2308
2309 These problems did NOT occur unless DomainKeys support was compiled.
2310
4aee0225
PH
2311PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2312
32d668a5
PH
2313PH/24 Added ${if match_ip condition.
2314
8187c3f3
PH
2315PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2316 databases so that it will be absolutely obvious if a crash occurs in the
2317 DB library. This is a regular occurrence (often caused by mis-matched
2318 db.h files).
2319
ff790e47 2320PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2321 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2322 picked up on a user's system that detects such things. There doesn't seem
2323 to be a gcc warning option for this - only an attribute that has to be
2324 put on the function's prototype. It seems that in Fedora Core 4 they have
2325 set this on a number of new functions. No doubt there will be more in due
2326 course.
ff790e47 2327
5417f6d1
PH
2328PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2329 specify a transport. However, if an address that was verified by such a
2330 router was the subject of a callout, Exim crashed because it tried to
2331 read the rcpt_include_affixes from the non-existent transport. Now it
2332 just assumes that the setting of that option is false. This bug was
2333 introduced by 4.51/PH/31.
2334
59cf8544
PH
2335PH/28 Changed -d+all to exclude +memory, because that information is very
2336 rarely of interest, but it makes the output a lot bigger. People tend to
2337 do -d+all out of habit.
2338
e7ad8a65
PH
2339PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2340 code in os-type was giving problems when libc.so lives in lib64, like on
2341 x86_64 Fedora Core.
2342
ade42478
PH
2343PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2344 aren't the modern standard, and it seems that some systems' include files
2345 don't always have them. Exim was already checking for some of the newer
2346 ones like T_AAAA, and defining it itself. I've added checks for all the
2347 record types that Exim uses.
2348
182ad5cf
PH
2349PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2350 not automatically generating a new one, as it is supposed to. This
2351 prevented TLS from working. If the file did exist, but contained invalid
2352 data, a new version was generated, as expected. It was only the case of a
2353 non-existent file that was broken.
2354
b0d9fc80
TK
2355TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2356 with a change in libdomainkeys > 0.64.
2357
2358TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2359 from DNS. If the selector record carries the flag, it now has
2360 precedence over the domain-wide flag.
2361
2362TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2363
47c7a64a
PH
2364PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2365 the use of a port name that isn't defined in /etc/services) occurred, the
2366 message was deferred as in a normal delivery, and thus remained on the
2367 spool, instead of being failed because of the mua_wrapper setting. This
2368 is now fixed, and I tidied up some of the mua_wrapper messages at the
2369 same time.
2370
a388bce4
SC
2371SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2372 the messages in a hash of arrays rather than using individual hashes.
2373 This is a bit cleaner and results in dramatic memory savings, albeit
2374 at a slight CPU cost.
2375
2376SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2377 as requested by Marc Sherman.
2378
2379SC/10 Eximstats: added histograms for user specified patterns as requested
2380 by Marc Sherman.
2381
0793e4ed
SC
2382SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2383
c58b88df
PH
2384PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2385 fopen() in the content-scanning modules that did not already have it.
2386
e7ad8a65 2387
7982096b
PH
2388Exim version 4.51
2389-----------------
2390
1a46a8c5
PH
2391TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2392 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2393
2f079f46 2394TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2395
2396TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2397
2398PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2399 to test Sieve filters that use "vacation".
2400
2401PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2402 that changes the way the GnuTLS parameters are stored in the cache file.
2403 The new format can be generated externally. For backward compatibility,
2404 if the data in the cache doesn't make sense, Exim assumes it has read an
2405 old-format file, and it generates new data and writes a new file. This
2406 means that you can't go back to an older release without removing the
2407 file.
2408
2409PH/03 A redirect router that has both "unseen" and "one_time" set does not
2410 work if there are any delivery delays because "one_time" forces the
2411 parent to be marked "delivered", so its unseen clone is never tried
2412 again. For this reason, Exim now forbids the simultaneous setting of
2413 these two options.
2414
2415PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2416 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2417 entry if you want to know the details. The fix, however, neglected to
2418 consider the case when local delivery batching is involved. The test for
2419 "previously delivered" was not happening when checking to see if an
2420 address could be batched with a previous (undelivered) one; under
2421 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2422 address.
1a46a8c5
PH
2423
2424PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2425 in its include files, and this causes problems building Exim.
2426
2427PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2428 header_syntax) but Exim was just ignoring anything given after a slash.
2429 In particular, this caused confusion with an attempt to use "verify =
2430 reverse_host_lookup/defer_ok". An error is now given when options are
2431 supplied for verify items that do not have them. (Maybe reverse_host_
2432 lookup should have a defer_ok option, but that's a different point.)
2433
2434PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2435 defined by RFC 821) to 2048, because there were problems with some AUTH
2436 commands, and RFC 1869 says the size should be increased for extended
2437 SMTP commands that take arguments.
2438
2439PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2440 Finch).
2441
2442PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2443 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2444
49c2d5ea
PH
2445PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2446 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2447 whatever). Otherwise the password may appear in the log. Following change
2448 PH/42 below, there is no longer a chance of it appearing in a bounce
2449 message.
49c2d5ea 2450
bf759a8b
PH
2451PH/11 Installed exipick version 20050225.0 from John Jetmore.
2452
83364d30
PH
2453PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2454 of its addresses was ever tried. (Bugzilla bug #2.)
2455
7999bbd7
PH
2456PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2457 the result incorrectly in the debug output. (It correctly added a newline
2458 to what was transported.)
2459
7dbf77c9
PH
2460TF/01 Added $received_time.
2461
74e0617f
PH
2462PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2463 commented out examples of how to interface to a virus scanner and to
2464 SpamAssassin. Also added commented examples of av_scanner and
2465 spamd_address settings.
2466
2f079f46
PH
2467PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2468 and controls are allowed in which ACLs. There were a couple of minor
2469 errors. Some of the entries in the conditions table (which is a table of
2470 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2471 negation of where the condition IS allowed.
2472
8c841523
PH
2473PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2474
7766a4f0
PH
2475PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2476 header file does not have a version number, so I've had to invent a new
2477 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2478 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2479 radiusclient), but it was contributed by a Radius user.
2480
8b417f2c
PH
2481PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2482 files or directories, for OpenSSL.
2483
901f42cb
PH
2484PH/19 When an Exim process that is running as root has to create an Exim log
2485 file, it does so in a subprocess that runs as exim:exim so as to get the
2486 ownership right at creation (otherwise, other Exim processes might see
2487 the file with the wrong ownership). There was no test for failure of this
2488 fork() call, which would lead to the process getting stuck as it waited
2489 for a non-existent subprocess. Forks do occasionally fail when resources
2490 run out. I reviewed all the other calls to fork(); they all seem to check
2491 for failure.
2492
f9b9210e
PH
2493PH/20 When checking for unexpected SMTP input at connect time (before writing
2494 the banner), Exim was not dealing correctly with a non-positive return
2495 from the read() function. If the client had disconnected by this time,
2496 the result was a log entry for a synchronization error with an empty
2497 string after "input=" when read() returned zero. If read() returned -1
2498 (an event I could not check), uninitialized data bytes were printed.
2499 There were reports of junk text (parts of files, etc) appearing after
2500 "input=".
2501
54cdb463
PH
2502PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2503
cf00dad6
PH
2504PH/22 Added support for macro redefinition, and (re)definition in between
2505 driver and ACL definitions.
2506
acb1b346
PH
2507PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2508 forgetting to use the resulting value; it was using the unexpanded value.
2509
c5ddb310
PH
2510PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2511 hadn't been configured. The fix is from Juergen Kreileder, who
2512 understands it better than I do:
2513
2514 "Here's what I see happening with three configured cyrus_sasl
2515 authenticators configured (plain, login, cram-md5):
2516
2517 On startup auth_cyrus_sasl_init() gets called for each of these.
2518 This means three calls to sasl_listmech() without a specified mech_list.
2519 => SASL tests which mechs of all available mechs actually work
2520 => three warnings about OTP not working
2521 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2522
2523 With the patch, sasl_listmech() also gets called three times. But now
2524 SASL's mech_list option is set to the server_mech specified in the the
2525 authenticator. Or in other words, the answer from sasl_listmech()
2526 gets limited to just the mech you're testing for (which is different
2527 for each call.)
2528 => the return list contains just 'plain' or 'login', 'cram-md5' or
2529 nothing depending on the value of ob->server_mech.
2530
2531 I've just tested the patch: Authentication still works fine,
2532 unavailable mechs specified in the exim configuration are still
2533 caught, and the auth.log warnings about OTP are gone."
2534
31619da6
PH
2535PH/25 When debugging is enabled, the contents of the command line are added
2536 to the debugging output, even when log_selector=+arguments is not
2537 specified.
2538
bebaf0fc
PH
2539PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2540 answer is "GNU", and only if the return is "GNU/something" is the answer
2541 "Linux".
2542
475fe28a
PH
2543PH/27 $acl_verify_message is now set immediately after the failure of a
2544 verification in an ACL, and so is available in subsequent modifiers. In
2545 particular, the message can be preserved by coding like this:
2546
2547 warn !verify = sender
2548 set acl_m0 = $acl_verify_message
2549
2550 Previously, $acl_verify_message was set only while expanding "message"
2551 and "log_message" when a very denied access.
2552
7e8bec7a
PH
2553PH/28 Modified OS/os.c-Linux with
2554
2555 -#ifndef OS_LOAD_AVERAGE
2556 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2557
2558 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2559 nomenclature these days.)
2560
e4a89c47
PH
2561PH/29 Installed patch from the Sieve maintainer that adds the options
2562 sieve_useraddress and sieve_subaddress to the redirect router.
2563
5ca2a9a1
PH
2564PH/30 In these circumstances:
2565 . Two addresses routed to the same list of hosts;
2566 . First host does not offer TLS;
2567 . First host accepts first address;
2568 . First host gives temporary error to second address;
2569 . Second host offers TLS and a TLS session is established;
2570 . Second host accepts second address.
2571 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2572 and peerdn, if requested) that were in fact used only for the second
2573 address.
7e8bec7a 2574
c688b954
PH
2575PH/31 When doing a callout as part of verifying an address, Exim was not paying
2576 attention to any local part prefix or suffix that was matched by the
2577 router that accepted the address. It now behaves in the same way as it
2578 does for delivery: the affixes are removed from the local part unless
2579 rcpt_include_affixes is set on the transport.
2580
fed77020
PH
2581PH/32 Add the sender address, as F=<...>, to the log line when logging a
2582 timeout during the DATA phase of an incoming message.
2583
7fe1560f
PH
2584PH/33 Sieve envelope tests were broken for match types other than :is. I have
2585 applied a patch sanctioned by the Sieve maintainer.
c688b954 2586
ebb6e6d5
PH
2587PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2588 the uid or gid is negative. A case of a negative gid caused this to be
2589 noticed. The fix allows for either to be negative.
2590
9c4e8f60
PH
2591PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2592 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2593 overlooked.
2594
2595PH/36 The change PH/12 above was broken. Fixed it.
2596
d7174846
PH
2597PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2598 the grounds that routing the same address twice would always produce the
2599 same answer. This might have been true once, but it is certainly no
2600 longer true now. Routing a child address may depend on the previous
2601 routing that produced that child. Some complicated redirection strategies
2602 went wrong when messages had multiple recipients, and made Exim's
2603 behaviour dependent on the order in which the addresses were given.
2604
2605 I have moved the duplicate checking until after the routing is complete.
2606 Exim scans the addresses that are assigned to local and remote
2607 transports, and removes any duplicates. This means that more work will be
2608 done, as duplicates will always all be routed, but duplicates are
2609 presumably rare, so I don't expect this is of any significance.
2610
2611 For deliveries to pipes, files, and autoreplies, the duplicate checking
2612 still happens during the routing process, since they are not going to be
2613 routed further.
2614
cfe75fc3
PH
2615PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2616 It corrects a timeout issue with spamd. This is Ian's comment: "The
2617 background is that sometimes spamd either never reads data from a
2618 connection it has accepted, or it never writes response data. The exiscan
2619 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2620 blindly assumes that writes won't block so it may never time out."
2621
be22d70e
PH
2622PH/39 Allow G after quota size as well as K and M.
2623
0612b098
PH
2624PH/40 The value set for $authenticated_id in an authenticator may not contain
2625 binary zeroes or newlines because the value is written to log lines and
2626 to spool files. There was no check on this. Now the value is run through
2627 the string_printing() function so that such characters are converted to
2628 printable escape sequences.
2629
2e0c1448
PH
2630PH/41 $message_linecount is a new variable that contains the total number of
2631 lines in the message. Compare $body_linecount, which is the count for the
2632 body only.
2633
447d236c
PH
2634PH/42 Exim no longer gives details of delivery errors for specific addresses in
2635 bounce and delay warning messages, except in certain special cases, which
2636 are as follows:
2637
2638 (a) An SMTP error message from a remote host;
2639 (b) A message specified in a :fail: redirection;
2640 (c) A message specified in a "fail" command in a system filter;
2641 (d) A message specified in a FAIL return from the queryprogram router;
2642 (e) A message specified by the cannot_route_message router option.
2643
2644 In these cases only, Exim does include the error details in bounce and
2645 warning messages. There are also a few cases where bland messages such
2646 as "unrouteable address" or "local delivery error" are given.
2647
d20976dc
PH
2648PH/43 $value is now also set for the "else" part of a ${run expansion.
2649
f656d135
PH
2650PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2651 being worked on, but at least Exim now implements the latest version to
2652 play with."
2653
2e2a30b4
PH
2654PH/45 In a pipe transport, although a timeout while waiting for the pipe
2655 process to complete was treated as a delivery failure, a timeout while
2656 writing the message to the pipe was logged, but erroneously treated as a
2657 successful delivery. Such timeouts include transport filter timeouts. For
2658 consistency with the overall process timeout, these timeouts are now
2659 treated as errors, giving rise to delivery failures by default. However,
2660 there is now a new Boolean option for the pipe transport called
2661 timeout_defer, which, if set TRUE, converts the failures into defers for
2662 both kinds of timeout. A transport filter timeout is now identified in
2663 the log output.
2664
9176e9f0
PH
2665PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2666 systems where "make" and "gmake" are different, calling "gmake" at top
2667 level broke things. I've arranged for the value of $(MAKE) to be passed
2668 from the Makefile to this script so that it can call the same version of
2669 "make".
2670
7982096b 2671
bbe902f0
PH
2672A note about Exim versions 4.44 and 4.50
2673----------------------------------------
2674
2675Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2676changes of various kinds. As a consequence, a big documentation update was
2677needed. This delayed the release for rather longer than seemed good, especially
2678in the light of a couple of (minor) security issues. Therefore, the changes
2679that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2680release. So 4.44 and 4.50 are in effect two different branches that both start
2681from 4.43.
2682
2683I have left the 4.50 change log unchanged; it contains all the changes since
26844.43. The change log for 4.44 is below; many of its items are identical to
2685those for 4.50. This seems to be the most sensible way to preserve the
2686historical information.
2687
2688
f7b63901 2689Exim version 4.50
495ae4b0
PH
2690-----------------
2691
5fe762f6
PH
2692 1. Minor wording change to the doc/README.SIEVE file.
2693
139059f6 2694 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2695 computation of the current number of files was incorrect.
495ae4b0 2696
7086e875
PH
2697 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2698 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2699 place.
2700
35af9f61
PH
2701 4. Give more explanation in the error message when the command for a transport
2702 filter fails to execute.
2703
b668c215
PH
2704 5. There are several places where Exim runs a non-Exim command in a
2705 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2706 was being done only for the command run by the queryprogram router. It is
2707 now done for all such subprocesses. The other cases are: ${run, transport
2708 filters, and the commands run by the lmtp and pipe transports.
2709
a494b1e1
PH
2710 6. Added CONFIGURE_GROUP build-time option.
2711
2712 7. Some older OS have a limit of 256 on the maximum number of file
2713 descriptors. Exim was using setrlimit() to set 1000 as a large value
2714 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2715 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2716
c5fcb476
PH
2717 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2718 was an oversight, and furthermore, ever since the addition of extra
2719 controls (e.g. 4.43/32), the checks on when to allow different forms of
2720 "control" were broken. There should now be diagnostics for all cases when a
2721 control that does not make sense is encountered.
2722
69358f02
PH
2723 9. Added the /retain_sender option to "control=submission".
2724
5be20824
PH
272510. $recipients is now available in the predata ACL (oversight).
2726
eb2c0248
PH
272711. Tidy the search cache before the fork to do a delivery from a message
2728 received from the command line. Otherwise the child will trigger a lookup
2729 failure and thereby defer the delivery if it tries to use (for example) a
2730 cached ldap connection that the parent has called unbind on.
2731
2a3eea10
PH
273212. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2733 of $address_data from the recipient verification was clobbered by the
2734 sender verification.
2735
273613. The value of address_data from a sender verification is now available in
2737 $sender_address_data in subsequent conditions in the ACL statement.
2738
23c7ff99
PH
273914. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2740
4deaf07d
PH
274115. Added a new option "connect=<time>" to callout options, to set a different
2742 connection timeout.
2743
926e1192
PH
274416. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2745 was its contents. (It was OK if the option was not defined at all.)
2746
650edc6f
PH
274717. A "Completed" log line is now written for messages that are removed from
2748 the spool by the -Mrm option.
2749
2c7db3f5
PH
275018. New variables $sender_verify_failure and $recipient_verify_failure contain
2751 information about exactly what failed.
2752
3d235903
PH
275319. Added -dd to debug only the daemon process.
2754
7c7ad977
PH
275520. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2756 handles timeouts, both on the server side and network timeouts. Renamed the
2757 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2758
981756db
PH
275921. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2760 It is now set to "smtps".
2761
d4eb88df
PH
276222. $host_address is now set to the target address during the checking of
2763 ignore_target_hosts.
2764
276523. When checking ignore_target_hosts for an ipliteral router, no host name was
2766 being passed; this would have caused $sender_host_name to have been used if
2767 matching the list had actually called for a host name (not very likely,
2768 since this list is usually IP addresses). A host name is now passed as
2769 "[x.x.x.x]".
2770
7d468ab8
PH
277124. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2772 code that specifies a non-restarting handler (typically sigaction() in
2773 modern systems) in an attempt to fix a rare and obscure crash bug.
2774
277525. Narrowed the window for a race in the daemon that could cause it to ignore
2776 SIGCHLD signals. This is not a major problem, because they are used only to
2777 wake it up if nothing else does.
2778
62c0818f
PH
277926. A malformed maildirsize file could cause Exim to calculate negative values
2780 for the mailbox size or file count. Odd effects could occur as a result.
2781 The maildirsize information is now recalculated if the size or filecount
2782 end up negative.
2783
26034054
PH
278427. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2785 support for a long time. Removed HAVE_SYS_VFS_H.
2786
af66f652
PH
278728. Installed the latest version of exipick from John Jetmore.
2788
90af77f4
PH
278929. In an address list, if the pattern was not a regular expression, an empty
2790 subject address (from a bounce message) matched only if the pattern was an
2791 empty string. Non-empty patterns were not even tested. This was the wrong
2792 because it is perfectly reasonable to use an empty address as part of a
2793 database query. An empty address is now tested by patterns that are
2794 lookups. However, all the other forms of pattern expect the subject to
2795 contain a local part and a domain, and therefore, for them, an empty
2796 address still always fails if the pattern is not itself empty.
2797
d8ef3577
PH
279830. Exim went into a mad DNS loop when attempting to do a callout where the
2799 host was specified on an smtp transport, and looking it up yielded more
2800 than one IP address.
2801
5cb8cbc6
PH
280231. Re-factored the code for checking spool and log partition space into a
2803 function that finds that data and another that does the check. The former
2804 is then used to implement four new variables: $spool_space, $log_space,
2805 $spool_inodes, and $log_inodes.
2806
14702f5b
PH
280732. The RFC2047 encoding function was originally intended for short strings
2808 such as real names; it was not keeping to the 75-character limit for
2809 encoded words that the RFC imposes. It now respects the limit, and
2810 generates multiple encoded words if necessary. To be on the safe side, I
2811 have increased the buffer size for the ${rfc2047: expansion operator from
2812 1024 to 2048 bytes.
2813
063b1e99
PH
281433. It is now permitted to omit both strings after an "if" condition; if the
2815 condition is true, the result is "true". As before, when the second string
2816 is omitted, a false condition yields an empty string. This makes it less
2817 cumbersome to write custom ACL and router conditions.
2818
652e1b65
PH
281934. Failure to deliver a bounce message always caused it to be frozen, even if
2820 there was an errors_to setting on the router. The errors_to setting is now
2821 respected.
2822
6f0c9a4f
PH
282335. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2824 canonical form (fully expanded) before being placed in
2825 $sender_host_address.
2826
33397d19
PH
282736. The table in the code that translates DNS record types into text (T_A to
2828 "A" for instance) was missing entries for NS and CNAME. It is just possible
2829 that this could have caused confusion if both these types were looked up
2830 for the same domain, because the text type is used as part of Exim's
2831 per-process caching. But the chance of anyone hitting this buglet seems
2832 very small.
2833
7bb56e1f
PH
283437. The dnsdb lookup has been extended in a number of ways.
2835
2836 (1) There is a new type, "zns", which walks up the domain tree until it
2837 finds some nameserver records. It should be used with care.
2838
ea3bc19b
PH
2839 (2) There is a new type, "mxh", which is like "mx" except that it returns
2840 just the host names, not the priorities.
2841
2842 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2843 looked up. The behaviour when one of the lookups defers can be
2844 controlled by a keyword.
7bb56e1f 2845
ea3bc19b 2846 (4) It is now possible to specify the separator character for use when
7bb56e1f 2847 multiple records are returned.
33397d19 2848
0bcb2a0e
PH
284938. The dnslists ACL condition has been extended: it is now possible to supply
2850 a list of IP addresses and/or domains to be looked up in a particular DNS
2851 domain.
2852
2ac0e484
PH
285339. Added log_selector=+queue_time_overall.
2854
4e1fde53
PH
285540. When running the queue in the test harness, wait just a tad after forking a
2856 delivery process, to get repeatability of debugging output.
2857
de365ded
PH
285841. Include certificate and key file names in error message when GnuTLS fails
2859 to set them up, because the GnuTLS error message doesn't include the name
2860 of the failing file when there is a problem reading it.
2861
f05da2e8
PH
286242. Allow both -bf and -bF in the same test run.
2863
d6453af2
PH
286443. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2865
f7b63901
PH
286644. The "Exiscan patch" is now merged into the mainline Exim source.
2867
286845. Sometimes the final signoff response after QUIT could fail to get
2869 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2870 < 0 before doing a fflush(). This bug looks as though it goes back to the
2871 introduction of TLS in release 3.20, but "sometimes" must have been rare
2872 because the tests only now provoked it.
2873
a444213a
PH
287446. Reset the locale to "C" after calling embedded Perl, in case it was changed
2875 (this can affect the format of dates).
2876
0ec020ea
PH
287747. exim_tidydb, when checking for the continued existence of a message for
2878 which it has found a message-specific retry record, was not finding
2879 messages that were in split spool directories. Consequently, it was
2880 deleting retry records that should have stayed in existence.
2881
b1206957
PH
288248. Steve fixed some bugs in eximstats.
2883
288449. The SPA authentication driver was not abandoning authentication and moving
2885 on to the next authenticator when an expansion was forced to fail,
2886 contradicting the general specification for all authenticators. Instead it
2887 was generating a temporary error. It now behaves as specified.
2888
26dd5a95
PH
288950. The default ordering of permitted cipher suites for GnuTLS was pessimal
2890 (the order specifies the preference for clients). The order is now AES256,
2891 AES128, 3DES, ARCFOUR128.
2892
343b2385
PH
289351. Small patch to Sieve code - explicitly set From: when generating an
2894 autoreply.
2895
1c5466b9
PH
289652. Exim crashed if a remote delivery caused a very long error message to be
2897 recorded - for instance if somebody sent an entire SpamAssassin report back
2898 as a large number of 550 error lines. This bug was coincidentally fixed by
2899 increasing the size of one of Exim's internal buffers (big_buffer) that
2900 happened as part of the Exiscan merge. However, to be on the safe side, I
2901 have made the code more robust (and fixed the comments that describe what
2902 is going on).
2903
55ee9ee3
PH
290453. Now that there can be additional text after "Completed" in log lines (if
2905 the queue_time_overall log selector is set), a one-byte patch to exigrep
2906 was needed to allow it to recognize "Completed" as not the last thing in
2907 the line.
2908
d38f8232
PH
290954. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2910 patch that reportedly fixes this has been added. I am not expert enough to
2911 create a test for it. This is what the patch creator wrote:
2912
2913 "I found a little strange behaviour of ldap code when working with
2914 Windows 2003 AD Domain, where users was placed in more than one
2915 Organization Units. When I tried to give exim partial DN, the exit code
2916 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2917 But simultaneously result of request was absolutely normal ldap result,
2918 so I produce this patch..."
2919
3295e65b
PH
2920 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2921 REFERENCE, so I have modified the code to exclude the patch when that macro
2922 is not defined.
2923
7102e136
PH
292455. Some experimental protocols are using DNS PTR records for new purposes. The
2925 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2926 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2927 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2928 CAN-2005-0021
7102e136 2929
3ca0ba97
PH
293056. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2931
c2bcbe20
PH
293257. Double the size of the debug message buffer (to 2048) so that more of very
2933 long debug lines gets shown.
2934
18ce445d
PH
293558. The exicyclog utility now does better if the number of log files to keep
2936 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2937
1f5b4c3d
PH
293859. Two changes related to the smtp_active_hostname option:
2939
2940 (1) $smtp_active_hostname is now available as a variable.
2941 (2) The default for smtp_banner uses $smtp_active_hostname instead
2942 of $primary_hostname.
2943
b975ba52
PH
294460. The host_aton() function is supposed to be passed a string that is known
2945 to be a valid IP address. However, in the case of IPv6 addresses, it was
2946 not checking this. This is a hostage to fortune. Exim now panics and dies
2947 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2948 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2949 components; fortuitously, this particular loophole had already been fixed
2950 by change 4.50/55 above.
2951
2952 If there are any other similar loopholes, the new check in host_aton()
2953 itself should stop them being exploited. The report I received stated that
2954 data on the command line could provoke the exploit when Exim was running as
2955 exim, but did not say which command line option was involved. All I could
2956 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2957 running as the user.
ea3a6f44 2958 CAN-2005-0021
85b87bc2
PH
2959
296061. There was a buffer overflow vulnerability in the SPA authentication code
2961 (which came originally from the Samba project). I have added a test to the
2962 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2963 CAN-2005-0022
b975ba52 2964
17ffcae7
PH
296562. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2966 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2967
d95f9fdb
PH
296863. The daemon start-up calls getloadavg() while still root for those OS that
2969 need the first call to be done as root, but it missed one case: when
2970 deliver_queue_load_max is set with deliver_drop_privilege. This is
2971 necessary for the benefit of the queue runner, because there is no re-exec
2972 when deliver_drop_privilege is set.
2973
86b8287f
PH
297464. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2975 This has been fixed.
2976
60dc5e56
PH
297765. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2978 was in use, was not putting the data itself into the right store pool;
2979 consequently, it could be overwritten for a subsequent message in the same
2980 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2981 the caching.)
2982
533244af
PH
298366. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2984
a5a28604
PH
298567. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2986 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2987 the function were treating the return as a boolean value, which happened to
2988 work because 0=false and not-0=true, but is not correct code.
2989
7e634d24
PH
299068. The host_aton() function was not handling scoped IPv6 addresses (those
2991 with, for example, "%eth0" on the end) correctly.
2992
3e11c26b
PH
299369. Fixed some compiler warnings in acl.c for the bitmaps specified with
2994 negated items (that is, ~something) in unsigned ints. Some compilers
2995 apparently mutter when there is no cast.
2996
6729cf78
PH
299770. If an address verification called from an ACL failed, and did not produce a
2998 user-specific message (i.e. there was only a "system" message), nothing was
2999 put in $acl_verify_message. In this situation, it now puts the system
3000 message there.
3001
00f00ca5
PH
300271. Change 4.23/11 added synchronization checking at the start of an SMTP
3003 session; change 4.31/43 added the unwanted input to the log line - except
3004 that it did not do this in the start of session case. It now does.
3005
c9bdd01c
PH
300672. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3007 This is wrong and can cause the other end to generate a synchronization
3008 error if it is another Exim or anything else that does the synchronization
3009 check. A QUIT command is no longer sent after a timeout.
3010
d43194df
PH
301173. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3012 during host lookups.
3013
fe5b5d0b
PH
301474. The defer_ok option of callout verification was not working if it was used
3015 when verifying addresses in header lines, that is, for this case:
3016
3017 verify = header_sender/callout=defer_ok
3018
76a2d7ba
PH
301975. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3020 those file descriptors could be used for SMTP connections. If anything
3021 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3022 could be sent to the SMTP client, causing chaos. The daemon now opens
3023 stdin, stdout, and stderr to /dev/null when it puts itself into the
3024 background.
3025
302676. Arrange for output from Perl's "warn" command to be written to Exim's main
3027 log by default. The user can override this with suitable Perl magic.
3028
04f7d5b9
PH
302977. The use of log_message on a "discard" ACL verb, which is supposed to add to
3030 the log message when discard triggers, was not working for the DATA ACL or
3031 for the non-SMTP ACL.
3032
bc60667e
PH
303378. Error message wording change in sieve.c.
3034
bb6e88ff
PH
303579. If smtp_accept_max_per_host was set, the number of connections could be
3036 restricted to fewer than expected, because the daemon was trying to set up
3037 a new connection before checking whether the processes handling previous
3038 connections had finished. The check for completed processes is now done
3039 earlier. On busy systems, this bug wouldn't be noticed because something
3040 else would have woken the daemon, and it would have reaped the completed
3041 process earlier.
3042
1e70f85b
PH
304380. If a message was submitted locally by a user whose login name contained one
3044 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3045 It caused a spool format error. I have fixed the spool reading code. A
3046 related problem was that the "from" clause in the Received: line became
3047 illegal because of the space(s). It is now covered by ${quote_local_part.
3048
304981. Included the latest eximstats from Steve (adds average sizes to HTML Top
3050 tables).
3051
4e01f9d6
PH
305282. Updated OS/Makefile-AIX as per message from Mike Meredith.
3053
1ee1cef2
PH
305483. Patch from Sieve maintainer to fix unterminated string problem in
3055 "vacation" handling.
3056
6e2b4ccc
PH
305784. Some minor changes to the Linux configuration files to help with other
3058 OS variants using glibc.
3059
8e669ac1
PH
306085. One more patch for Sieve to update vacation handling to latest spec.
3061
495ae4b0 3062
bbe902f0
PH
3063----------------------------------------------------
3064See the note above about the 4.44 and 4.50 releases.
3065----------------------------------------------------
3066
3067
3068Exim version 4.44
3069-----------------
3070
3071 1. Change 4.43/35 introduced a bug that caused file counts to be
3072 incorrectly computed when quota_filecount was set in an appendfile
3073 transport
3074
3075 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3076 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3077 place.
3078
3079 3. Give more explanation in the error message when the command for a transport
3080 filter fails to execute.
3081
3082 4. There are several places where Exim runs a non-Exim command in a
3083 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3084 was being done only for the command run by the queryprogram router. It is
3085 now done for all such subprocesses. The other cases are: ${run, transport
3086 filters, and the commands run by the lmtp and pipe transports.
3087
3088 5. Some older OS have a limit of 256 on the maximum number of file
3089 descriptors. Exim was using setrlimit() to set 1000 as a large value
3090 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3091 systems. I've change it so that if it can't get 1000, it tries for 256.
3092
3093 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3094 was an oversight, and furthermore, ever since the addition of extra
3095 controls (e.g. 4.43/32), the checks on when to allow different forms of
3096 "control" were broken. There should now be diagnostics for all cases when a
3097 control that does not make sense is encountered.
3098
3099 7. $recipients is now available in the predata ACL (oversight).
3100
3101 8. Tidy the search cache before the fork to do a delivery from a message
3102 received from the command line. Otherwise the child will trigger a lookup
3103 failure and thereby defer the delivery if it tries to use (for example) a
3104 cached ldap connection that the parent has called unbind on.
3105
3106 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3107 of $address_data from the recipient verification was clobbered by the
3108 sender verification.
3109
311010. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3111 was its contents. (It was OK if the option was not defined at all.)
3112
311311. A "Completed" log line is now written for messages that are removed from
3114 the spool by the -Mrm option.
3115
311612. $host_address is now set to the target address during the checking of
3117 ignore_target_hosts.
3118
311913. When checking ignore_target_hosts for an ipliteral router, no host name was
3120 being passed; this would have caused $sender_host_name to have been used if
3121 matching the list had actually called for a host name (not very likely,
3122 since this list is usually IP addresses). A host name is now passed as
3123 "[x.x.x.x]".
3124
312514. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3126 code that specifies a non-restarting handler (typically sigaction() in
3127 modern systems) in an attempt to fix a rare and obscure crash bug.
3128
312915. Narrowed the window for a race in the daemon that could cause it to ignore
3130 SIGCHLD signals. This is not a major problem, because they are used only to
3131 wake it up if nothing else does.
3132
313316. A malformed maildirsize file could cause Exim to calculate negative values
3134 for the mailbox size or file count. Odd effects could occur as a result.
3135 The maildirsize information is now recalculated if the size or filecount
3136 end up negative.
3137
313817. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3139 support for a long time. Removed HAVE_SYS_VFS_H.
3140
ea3a6f44 314118. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3142
314319. Allow an empty sender to be matched against a lookup in an address list.
3144 Previously the only cases considered were a regular expression, or an
3145 empty pattern.
3146
314720. Exim went into a mad DNS lookup loop when doing a callout where the
3148 host was specified on the transport, if the DNS lookup yielded more than
3149 one IP address.
3150
ea3a6f44
NM
315121. The RFC2047 encoding function was originally intended for short strings
3152 such as real names; it was not keeping to the 75-character limit for
3153 encoded words that the RFC imposes. It now respects the limit, and
3154 generates multiple encoded words if necessary. To be on the safe side, I
3155 have increased the buffer size for the ${rfc2047: expansion operator from
3156 1024 to 2048 bytes.
bbe902f0 3157
ea3a6f44
NM
315822. Failure to deliver a bounce message always caused it to be frozen, even if
3159 there was an errors_to setting on the router. The errors_to setting is now
3160 respected.
bbe902f0
PH
3161
316223. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3163 canonical form (fully expanded) before being placed in
3164 $sender_host_address.
3165
316624. Updated eximstats to version 1.33
3167
ea3a6f44
NM
316825. Include certificate and key file names in error message when GnuTLS fails
3169 to set them up, because the GnuTLS error message doesn't include the name
3170 of the failing file when there is a problem reading it.
bbe902f0
PH
3171
317226. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3173 As per change 25.
bbe902f0 3174
ea3a6f44
NM
317527. Reset the locale to "C" after calling embedded Perl, in case it was changed
3176 (this can affect the format of dates).
bbe902f0 3177
ea3a6f44
NM
317828. exim_tidydb, when checking for the continued existence of a message for
3179 which it has found a message-specific retry record, was not finding
3180 messages that were in split spool directories. Consequently, it was
3181 deleting retry records that should have stayed in existence.
bbe902f0
PH
3182
318329. eximstats updated to version 1.35
3184 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3185 1.35 - bugfix such that pie charts by volume are generated correctly
3186
ea3a6f44
NM
318730. The SPA authentication driver was not abandoning authentication and moving
3188 on to the next authenticator when an expansion was forced to fail,
3189 contradicting the general specification for all authenticators. Instead it
3190 was generating a temporary error. It now behaves as specified.
bbe902f0 3191
ea3a6f44
NM
319231. The default ordering of permitted cipher suites for GnuTLS was pessimal
3193 (the order specifies the preference for clients). The order is now AES256,
3194 AES128, 3DES, ARCFOUR128.
bbe902f0 3195
ea3a6f44
NM
319631. Small patch to Sieve code - explicitly set From: when generating an
3197 autoreply.
bbe902f0 3198
ea3a6f44
NM
319932. Exim crashed if a remote delivery caused a very long error message to be
3200 recorded - for instance if somebody sent an entire SpamAssassin report back
3201 as a large number of 550 error lines. This bug was coincidentally fixed by
3202 increasing the size of one of Exim's internal buffers (big_buffer) that
3203 happened as part of the Exiscan merge. However, to be on the safe side, I
3204 have made the code more robust (and fixed the comments that describe what
3205 is going on).
bbe902f0 3206
ea3a6f44
NM
320733. Some experimental protocols are using DNS PTR records for new purposes. The
3208 keys for these records are domain names, not reversed IP addresses. The
3209 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3210 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3211 CAN-2005-0021
3212
ea3a6f44
NM
321334. The host_aton() function is supposed to be passed a string that is known
3214 to be a valid IP address. However, in the case of IPv6 addresses, it was
3215 not checking this. This is a hostage to fortune. Exim now panics and dies
3216 if the condition is not met. A case was found where this could be provoked
3217 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3218 components; fortuitously, this particular loophole had already been fixed
3219 by change 4.50/55 or 4.44/33 above.
3220
3221 If there are any other similar loopholes, the new check in host_aton()
3222 itself should stop them being exploited. The report I received stated that
3223 data on the command line could provoke the exploit when Exim was running as
3224 exim, but did not say which command line option was involved. All I could
3225 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3226 running as the user.
bbe902f0
PH
3227 CAN-2005-0021
3228
ea3a6f44
NM
322935. There was a buffer overflow vulnerability in the SPA authentication code
3230 (which came originally from the Samba project). I have added a test to the
3231 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3232 CAN-2005-0022
3233
ea3a6f44
NM
323436. The daemon start-up calls getloadavg() while still root for those OS that
3235 need the first call to be done as root, but it missed one case: when
3236 deliver_queue_load_max is set with deliver_drop_privilege. This is
3237 necessary for the benefit of the queue runner, because there is no re-exec
3238 when deliver_drop_privilege is set.
bbe902f0 3239
ea3a6f44
NM
324037. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3241 was in use, was not putting the data itself into the right store pool;
3242 consequently, it could be overwritten for a subsequent message in the same
3243 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3244 the caching.)
bbe902f0 3245
ea3a6f44
NM
324638. Sometimes the final signoff response after QUIT could fail to get
3247 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3248 < 0 before doing a fflush(). This bug looks as though it goes back to the
3249 introduction of TLS in release 3.20, but "sometimes" must have been rare
3250 because the tests only now provoked it.
bbe902f0
PH
3251
3252
495ae4b0
PH
3253Exim version 4.43
3254-----------------
3255
3256 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3257 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3258 Now it returns an integer. A number of calls were still expecting a T/F
3259 return. Fortuitously, in all cases, the tests worked in OK situations,
3260 which is the norm. However, things would have gone wrong on any write
3261 failures on the smtp file descriptor. This function is used when sending
3262 messages over SMTP and also when doing verify callouts.
3263
3264 2. When Exim is called to do synchronous delivery of a locally submitted
3265 message (the -odf or -odi options), it no longer closes stderr before doing
3266 the delivery.
3267
3268 3. Implemented the mua_wrapper option.
3269
3270 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3271
3272 5. Implemented the functions header_remove(), header_testname(),
3273 header_add_at_position(), and receive_remove_recipient(), and exported them
3274 to local_scan().
3275
3276 6. If an ACL "warn" statement specified the addition of headers, Exim already
3277 inserted X-ACL-Warn: at the start if there was no header name. However, it
3278 was not making this test for the second and subsequent header lines if
3279 there were newlines in the string. This meant that an invalid header could
3280 be inserted if Exim was badly configured.
3281
3282 7. Allow an ACL "warn" statement to add header lines at the start or after all
3283 the Received: headers, as well as at the end.
3284
3285 8. Added the rcpt_4xx retry error code.
3286
3287 9. Added postmaster_mailfrom=xxx to callout verification option.
3288
328910. Added mailfrom=xxxx to the callout verification option, for verify=
3290 header_sender only.
3291
329211. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3293 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3294
329512. Inserted some casts to stop certain compilers warning when using pointer
3296 differences as field lengths or precisions in printf-type calls (mostly
3297 affecting debugging statements).
3298
329913. Added optional readline() support for -be (dynamically loaded).
3300
330114. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3302 same clock tick as a message's arrival, so that its received time was the
3303 same as the "first fail" time on the retry record, and that message
3304 remained on the queue past the ultimate address timeout, every queue runner
3305 would try a delivery (because it was past the ultimate address timeout) but
3306 after another failure, the ultimate address timeout, which should have then
3307 bounced the address, did not kick in. This was a "< instead of <=" error;
3308 in most cases the first failure would have been in the next clock tick
3309 after the received time, and all would be well.
3310
331115. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3312 being recognized when the domain list was tested by the match_domain
3313 condition in an expansion string.
3314
331516. Added the ${str2b64: operator.
3316
331717. Exim was always calling setrlimit() to set a large limit for the number of
3318 processes, without checking whether the existing limit was already
3319 adequate. (It did check for the limit on file descriptors.) Furthermore,
3320 errors from getrlimit() and setrlimit() were being ignored. Now they are
3321 logged to the main and panic logs, but Exim does carry on, to try to do its
3322 job under whatever limits there are.
3323
332418. Imported PCRE 5.0.
3325
332619. Trivial typo in log message " temporarily refused connection" (the leading
3327 space).
3328
332920. If the log selector return_path_on_delivery was set and an address was
3330 redirected to /dev/null, the delivery process crashed because it assumed
3331 that a return path would always be set for a "successful" delivery. In this
3332 case, the whole delivery is bypassed as an optimization, and therefore no
3333 return path is set.
3334
333521. Internal re-arrangement: the function for sending a challenge and reading
3336 a response while authentication was assuming a zero-terminated challenge
3337 string. It's now changed to take a pointer and a length, to allow for
3338 binary data in such strings.
3339
334022. Added the cyrus_sasl authenticator (code supplied by MBM).
3341
334223. Exim was not respecting finduser_retries when seeking the login of the
3343 uid under which it was called; it was always trying 10 times. (The default
3344 setting of finduser_retries is zero.) Also, it was sleeping after the final
3345 failure, which is pointless.
3346
334724. Implemented tls_on_connect_ports.
3348
334925. Implemented acl_smtp_predata.
3350
335126. If the domain in control=submission is set empty, Exim assumes that the
3352 authenticated id is a complete email address when it generates From: or
3353 Sender: header lines.
3354
335527. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3356 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3357 chown and chgrp in /bin and hostname in /usr/bin.
3358
335928. Exim was keeping the "process log" file open after each use, just as it
3360 does for the main log. This opens the possibility of it remaining open for
3361 long periods when the USR1 signal hits a daemon. Occasional processlog
3362 errors were reported, that could have been caused by this. Anyway, it seems
3363 much more sensible not to leave this file open at all, so that is what now
3364 happens.
3365
336629. The long-running daemon process does not normally write to the log once it
3367 has entered its main loop, and it closes the log before doing so. This is
3368 so that log files can straightforwardly be renamed and moved. However,
3369 there are a couple of unusual error situations where the daemon does write
3370 log entries, and I had neglected to close the log afterwards.
3371
337230. The text of an SMTP error response that was received during a remote
3373 delivery was being truncated at 512 bytes. This is too short for some of
3374 the long messages that one sometimes sees. I've increased the limit to
3375 1024.
3376
337731. It is now possible to make retry rules that apply only when a message has a
3378 specific sender, in particular, an empty sender.
3379
338032. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3381 it possible to be selective about when SMTP synchronization is enforced.
3382
338333. Added "control = caseful_local_part" and "control = "caselower_local_part".
3384
338532. Implemented hosts_connection_nolog.
3386
338733. Added an ACL for QUIT.
3388
338934. Setting "delay_warning=" to disable warnings was not working; it gave a
3390 syntax error.
3391
339235. Added mailbox_size and mailbox_filecount to appendfile.
3393
339436. Added control = no_multiline_responses to ACLs.
3395
339637. There was a bug in the logic of the code that waits for the clock to tick
3397 in the case where the clock went backwards by a substantial amount such
3398 that the microsecond fraction of "now" was more than the microsecond
3399 fraction of "then" (but the whole seconds number was less).
3400
340138. Added support for the libradius Radius client library this is found on
3402 FreeBSD (previously only the radiusclient library was supported).
3403
3404
3405Exim version 4.42
3406-----------------
3407
3408 1. When certain lookups returned multiple values in the form name=value, the
3409 quoting of the values was not always being done properly. Specifically:
3410 (a) If the value started with a double quote, but contained no whitespace,
3411 it was not quoted.
3412 (b) If the value contained whitespace other than a space character (i.e.
3413 tabs or newlines or carriage returns) it was not quoted.
3414 This fix has been applied to the mysql and pgsql lookups by writing a
3415 separate quoting function and calling it from the lookup code. The fix
3416 should probably also be applied to nisplus, ibase and oracle lookups, but
3417 since I cannot test any of those, I have not disturbed their existing code.
3418
3419 2. A hit in the callout cache for a specific address caused a log line with no
3420 reason for rejecting RCPT. Now it says "Previous (cached) callout
3421 verification failure".
3422
3423 3. There was an off-by-one bug in the queryprogram router. An over-long
3424 return line was truncated at 256 instead of 255 characters, thereby
3425 overflowing its buffer with the terminating zero. As well as fixing this, I
3426 have increased the buffer size to 1024 (and made a note to document this).
3427
3428 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3429 when Exim is waiting for an SMTP response from a remote server, Exim
3430 restarts its select() call on the socket, thereby resetting its timeout.
3431 This is not a problem when such interrupts are rare. Somebody set up a cron