Make ldap_require_cert work (not segfault).
[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
10906672
PP
6Exim version 4.76
7-----------------
8
9PP/01 The new ldap_require_cert option would segfault if used. Fixed.
10
11
aa097c4c
NM
12Exim version 4.75
13-----------------
14
4c9ef03a 15NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
16 Bugzilla 1073
17
7f3d9eff
TF
18TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
19 This fixes portability to compilers other than gcc, notably
20 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
21
159f52d2
TF
22TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
23 makefiles for portability to HP-UX and POSIX correctness.
24
0cc9542a
PP
25PP/01 Permit LOOKUP_foo enabling on the make command-line.
26 Also via indented variable definition in the Makefile.
27 (Debugging by Oliver Heesakkers).
28
f7274286
PP
29PP/02 Restore caching of spamd results with expanded spamd_address.
30 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
31
7b797365
PP
32PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
33 Improves build reliability. Fix from: Frank Elsner
34
caacae52
NM
35NM/02 Fix wide character breakage in the rfc2047 coding
36 Fixes bug 1064. Patch from Andrey N. Oktyabrski
37
09dcaba9
NM
38NM/03 Allow underscore in dnslist lookups
39 Fixes bug 1026. Patch from Graeme Fowler
40
bc19a55b
PP
41PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
42 Code patches from Adam Ciarcinski of NetBSD.
caacae52 43
bd4c9759
NM
44NM/04 Fixed exiqgrep to cope with mailq missing size issue
45 Fixes bug 943.
46
b72aab72
PP
47PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
48 is logged, to avoid truncation. Patch from John Horne.
49
2fe76745
PP
50PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
51 Patch from Jakob Hirsch.
52
76aa570c
PP
53PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
54 SQL string expansion failure details.
55 Patch from Andrey Oktyabrski.
56
f1e5fef5
PP
57PP/08 Bugzilla 486: implement %M datestamping in log filenames.
58 Patch from Simon Arlott.
59
4d805ee9
PP
60PP/09 New lookups functionality failed to compile on old gcc which rejects
61 extern declarations in function scope.
62 Patch from Oliver Fleischmann
63
cd59ab18
PP
64PP/10 Use sig_atomic_t for flags set from signal handlers.
65 Check getgroups() return and improve debugging.
66 Fixed developed for diagnosis in bug 927 (which turned out to be
67 a kernel bug).
68
332f5cf3
PP
69PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
70 Patch from Mark Zealey.
71
29cfeb94
PP
72PP/12 Bugzilla 1056: Improved spamd server selection.
73 Patch from Mark Zealey.
74
660242ad
PP
75PP/13 Bugzilla 1086: Deal with maildir quota file races.
76 Based on patch from Heiko Schlittermann.
77
bc4bc4c5
PP
78PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
79 Patch from Uwe Doering, sign-off by Michael Haardt.
80
2e64baa9
NM
81NM/05 Fix to spam.c to accommodate older gcc versions which dislike
82 variable declaration deep within a block. Bug and patch from
83 Dennis Davis.
84
bddd7526
PP
85PP/15 lookups-Makefile IRIX compatibilty coercion.
86
6bac1a9a
PP
87PP/16 Make DISABLE_DKIM build knob functional.
88
552193f0
NM
89NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
90 Patch by Simon Arlott
baeee2c1 91
1b587e48
TF
92TF/03 Fix valgrind.h portability to C89 compilers that do not support
93 variable argument macros. Our copy now differs from upstream.
94
aa097c4c 95
8c07b69f
TF
96Exim version 4.74
97-----------------
98
99TF/01 Failure to get a lock on a hints database can have serious
100 consequences so log it to the panic log.
101
c0ea85ab
TF
102TF/02 Log LMTP confirmation messages in the same way as SMTP,
103 controlled using the smtp_confirmation log selector.
104
0761d44e
TF
105TF/03 Include the error message when we fail to unlink a spool file.
106
0a349494
PP
107DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
108 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
109 for maintaining out-of-tree patches for some time.
110
111PP/01 Bugzilla 139: Documentation and portability issues.
112 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
113 Handle per-OS dynamic-module compilation flags.
114
fea24b2e
PP
115PP/02 Let /dev/null have normal permissions.
116 The 4.73 fixes were a little too stringent and complained about the
117 permissions on /dev/null. Exempt it from some checks.
118 Reported by Andreas M. Kirchwitz.
119
6545de78
PP
120PP/03 Report version information for many libraries, including
121 Exim version information for dynamically loaded libraries. Created
122 version.h, now support a version extension string for distributors
123 who patch heavily. Dynamic module ABI change.
124
1670ef10
PP
125PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
126 privilege escalation vulnerability whereby the Exim run-time user
127 can cause root to append content of the attacker's choosing to
128 arbitrary files.
129
c0886197
PP
130PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
131 (Wolfgang Breyha)
132
b7487bce
PP
133PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
134 If dropping privileges for untrusted macros, we disabled normal logging
135 on the basis that it would fail; for the Exim run-time user, this is not
136 the case, and it resulted in successful deliveries going unlogged.
137 Fixed. Reported by Andreas Metzler.
138
8c07b69f 139
97fd1e48 140Exim version 4.73
ed7f7860 141-----------------
97fd1e48
PP
142
143PP/01 Date: & Message-Id: revert to normally being appended to a message,
144 only prepend for the Resent-* case. Fixes regression introduced in
145 Exim 4.70 by NM/22 for Bugzilla 607.
146
6901c596
PP
147PP/02 Include check_rfc2047_length in configure.default because we're seeing
148 increasing numbers of administrators be bitten by this.
149
a8c8d6b5
JJ
150JJ/01 Added DISABLE_DKIM and comment to src/EDITME
151
77bb000f
PP
152PP/03 Bugzilla 994: added openssl_options main configuration option.
153
a29e5231
PP
154PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
155
ec5a0394 156PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 157
55c75993
PP
158PP/06 Adjust NTLM authentication to handle SASL Initial Response.
159
453a6645 160PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
161 without a peer certificate, leading to a segfault because of an
162 assumption that peers always have certificates. Be a little more
453a6645
PP
163 paranoid. Problem reported by Martin Tscholak.
164
8544e77a
PP
165PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
166 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
167 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
168 CL also introduces -bmalware, various -d+acl logging additions and
169 more caution in buffer sizes.
8544e77a 170
83e029d5
PP
171PP/09 Implemented reverse_ip expansion operator.
172
ed7f7860
PP
173PP/10 Bugzilla 937: provide a "debug" ACL control.
174
7d9f747b
PP
175PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
176
4b2241d2
PP
177PP/12 Bugzilla 973: Implement --version.
178
10385c15
PP
179PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
180
dbc4b90d
PP
181PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
182
532be449
PP
183PP/15 Bugzilla 816: support multiple condition rules on Routers.
184
6a8de854 185PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
186 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
187 ignore trailing whitespace.
6a8de854 188
5dc43717
JJ
189JJ/02 prevent non-panic DKIM error from being sent to paniclog
190
191JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
192 "exim" to be used
55c75993 193
3346ab01
PP
194PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
195 Notification from Dr Andrew Aitchison.
196
491fab4c
PP
197PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
198 ExtendedDetectionInfo response format.
199 Notification from John Horne.
200
13eb9497
PP
201PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
202 compatible.
203
204PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
205 XSL and documented dependency on system catalogs, with examples of how
206 it normally works.
207
7f36d675
DW
208DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
209 access.
210
c1d94452
DW
211DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
212 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
213 configuration file which is writeable by the Exim user or group.
214
e2f5dc15
DW
215DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
216 of configuration files to cover files specified with the -C option if
217 they are going to be used with root privileges, not just the default
218 configuration file.
219
cd25e41d
DW
220DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
221 option (effectively making it always true).
222
261dc43e
DW
223DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
224 files to be used while preserving root privileges.
225
fa32850b
DW
226DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
227 that rogue child processes cannot use them.
228
79d4bc3d
PP
229PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
230 run-time user, instead of root.
231
2cfd3221
PP
232PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
233 Exim run-time user without dropping privileges.
234
fb08281f
DW
235DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
236 result string, instead of calling string_vformat() twice with the same
237 arguments.
3346ab01 238
74935b98
DW
239DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
240 for other users. Others should always drop root privileges if they use
241 -C on the command line, even for a whitelisted configure file.
242
90b6341f
DW
243DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
244
57730b52
ML
245NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
246
66581d1e 247
465e92cf
JJ
248Exim version 4.72
249-----------------
250
453a6645
PP
251JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
252 $data_path, and $header_path variables; fixed documentation bugs and
253 typos
465e92cf 254
453a6645
PP
255JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
256 exipick to access non-standard spools, including the "frozen" queue
257 (Finput)
edae0343 258
9bd3e22c
NM
259NM/01 Bugzilla 965: Support mysql stored procedures.
260 Patch from Alain Williams
261
bb576ff7
NM
262NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
263
5a1a5845
NM
264NM/03 Bugzilla 955: Documentation fix for max_rcpts.
265 Patch from Andreas Metzler
266
981a9fad
NM
267NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
268 Patch from Kirill Miazine
269
7fc497ee
NM
270NM/05 Bugzilla 671: Added umask to procmail example.
271
1a41defa
JJ
272JJ/03 installed exipick 20100323.0, fixing doc bug
273
a466095c 274NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 275 directory. Notification and patch from Dan Rosenberg.
a466095c 276
94a6bd0b
NM
277TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
278
279TK/02 Improve log output when DKIM signing operation fails.
280
281MH/01 Treat the transport option dkim_domain as a colon separated
282 list, not as a single string, and sign the message with each element,
283 omitting multiple occurences of the same signer.
284
c1b141a8
NM
285NM/07 Null terminate DKIM strings, Null initialise DKIM variable
286 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 287
b26eacf1 288NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
289 Patch by Simon Arlott
290
179c5980 291PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 292 MBX locking. Notification from Dan Rosenberg.
179c5980 293
9bd3e22c 294
7c6d71af
NM
295Exim version 4.71
296-----------------
297
7d9f747b 298TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 299
f013fb92
NM
300NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
301
0eb8eedd
NM
302NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
303
663ee6d9
NM
304NM/03 Bugzilla 847: Enable DNSDB lookup by default.
305
177ebd9b
NM
306NM/04 Bugzilla 915: Flag broken perl installation during build.
307
7c6d71af 308
210f147e
NM
309Exim version 4.70
310-----------------
311
cdd3bb85 312TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 313 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
314
315TK/02 Write list of recipients to X-Envelope-Sender header when building
316 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 317 Hirsch).
cdd3bb85
TK
318
319TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
320 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 321 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
322
323TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
324 by Mark Daniel Reidel <mr@df.eu>.
325
210f147e
NM
326NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
327 When building exim an external PCRE library is now needed -
328 PCRE is a system library on the majority of modern systems.
329 See entry on PCRE_LIBS in EDITME file.
330
deafd5b3
NM
331NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
332 conversation. Added nologin parameter to request.
7d9f747b 333 Patch contributed by Kirill Miazine.
deafd5b3 334
089793a4
TF
335TF/01 Do not log submission mode rewrites if they do not change the address.
336
5f16ca82
TF
337TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
338
dae9d94e 339NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 340 log files in place. Contributed by Roberto Lima.
dae9d94e 341
7d9f747b 342NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 343
06864c44
TF
344TF/03 Bugzilla 615: When checking the local_parts router precondition
345 after a local_part_suffix or local_part_prefix option, Exim now
346 does not use the address's named list lookup cache, since this
347 contains cached lookups for the whole local part.
348
65a7d8c3 349NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 350 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 351
23510047 352TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 353
7d9f747b 354NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 355
7d8eec3a 356NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 357 Patch provided by Jan Srzednicki.
6c588e74 358
89dec7b6
TF
359TF/05 Leading white space used to be stripped from $spam_report which
360 wrecked the formatting. Now it is preserved.
5f28a6e8 361
a99de90c
TF
362TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
363 that they are available at delivery time.
364
e2803e40
TF
365TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
366
7199e1ee
TF
367TF/08 TLS error reporting now respects the incoming_interface and
368 incoming_port log selectors.
369
e276e04b
TF
370TF/09 Produce a more useful error message if an SMTP transport's hosts
371 setting expands to an empty string.
372
ce552449 373NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 374 Patch provided by Phil Pennock.
ce552449 375
e765a0f1 376NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 377 Patch provided by Richard Godbee.
e765a0f1 378
4f054c63 379NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 380 acl_smtp_notquit, added index entry.
4f054c63 381
7d9f747b
PP
382NM/09 Bugzilla 787: Potential buffer overflow in string_format.
383 Patch provided by Eugene Bujak.
24c929a2 384
7d9f747b
PP
385NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
386 accept(). Patch provided by Maxim Dounin.
cf73943b 387
b52bc06e 388NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 389 Patch provided by Phil Pennock.
b52bc06e 390
447de4b0
NM
391NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
392
4c69d561 393NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 394 Patch provided by Brad "anomie" Jorsch.
4c69d561 395
d5c39246 396NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 397 Patch provided by Dean Brooks.
9b989985 398
0b23848a
TK
399TK/05 Add native DKIM support (does not depend on external libraries).
400
8f3414a1 401NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 402 Patch provided by Graeme Fowler.
e2aacdfd 403
fb6f955d
NM
404NM/16 Bugzilla 851: Documentation example syntax fix.
405
406NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 407
7d9f747b
PP
408NM/18 Bugzilla 894: Fix issue with very long lines including comments in
409 lsearch.
dbb0bf41 410
7d9f747b
PP
411NM/19 Bugzilla 745: TLS version reporting.
412 Patch provided by Phil Pennock.
f3766eb5 413
7d9f747b
PP
414NM/20 Bugzilla 167: bool: condition support.
415 Patch provided by Phil Pennock.
36f12725 416
7d9f747b
PP
417NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
418 clients. Patch provided by Phil Pennock.
e6060e2c 419
7d9f747b
PP
420NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
421 Patch provided by Brad "anomie" Jorsch.
5eb690a1 422
7d9f747b
PP
423NM/23 Bugzilla 687: Fix misparses in eximstats.
424 Patch provided by Heiko Schlittermann.
d5c13d66 425
7d9f747b
PP
426NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
427 Patch provided by Heiko Schlittermann.
b2335c0b 428
7d9f747b 429NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 430 plus update to original patch.
f4cd9433 431
7d9f747b 432NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 433
7d9f747b
PP
434NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
435 Patch provided by David Brownlee.
8dc71ab3 436
7d9f747b 437NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 438
7d9f747b 439NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 440
7d9f747b 441NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 442
7d9f747b 443NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 444
17792b53 445NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 446 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 447
7d9f747b
PP
448NM/33 Bugzilla 898: Transport filter timeout fix.
449 Patch by Todd Rinaldo.
52383f8f 450
7d9f747b
PP
451NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
452 Patch by Serge Demonchaux.
5ca6d115 453
7d9f747b
PP
454NM/35 Bugzilla 39: Base64 decode bug fixes.
455 Patch by Jakob Hirsch.
baee9eee 456
7d9f747b 457NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 458
7d9f747b 459NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 460
7d9f747b 461NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 462
7d9f747b 463NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 464
deafd5b3 465
47db1125
NM
466Exim version 4.69
467-----------------
468
4b3504d0
TK
469TK/01 Add preliminary DKIM support. Currently requires a forked version of
470 ALT-N's libdkim that I have put here:
471 http://duncanthrax.net/exim-experimental/
472
473 Note to Michael Haardt: I had to rename some vars in sieve.c. They
474 were called 'true' and it seems that C99 defines that as a reserved
475 keyword to be used with 'bool' variable types. That means you could
476 not include C99-style headers which use bools without triggering
477 build errors in sieve.c.
478
81ea09ca
NM
479NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
480 as mailq or other aliases. Changed the --help handling significantly
481 to do whats expected. exim_usage() emits usage/help information.
482
f13cddcb
SC
483SC/01 Added the -bylocaldomain option to eximstats.
484
7d9f747b 485NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 486
7d9f747b 487NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 488
7d9f747b 489NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
490
491
eb4c0de6
PH
492Exim version 4.68
493-----------------
494
495PH/01 Another patch from the Sieve maintainer.
496
6a3bceb1
PH
497PH/02 When an IPv6 address is converted to a string for single-key lookup
498 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
499 dots are used instead of colons so that keys in lsearch files need not
500 contain colons. This was done some time before quoting was made available
501 in lsearch files. However, iplsearch files do require colons in IPv6 keys
502 (notated using the quote facility) so as to distinguish them from IPv4
503 keys. This meant that lookups for IP addresses in host lists did not work
504 for iplsearch lookups.
505
506 This has been fixed by arranging for IPv6 addresses to be expressed with
507 colons if the lookup type is iplsearch. This is not incompatible, because
508 previously such lookups could never work.
509
510 The situation is now rather anomolous, since one *can* have colons in
511 ordinary lsearch keys. However, making the change in all cases is
512 incompatible and would probably break a number of configurations.
513
2e30fa9d
TK
514TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
515 version.
516
0806a9c5
MH
517MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
518 conversion specification without a maximum field width, thereby enabling
519 a rogue spamd server to cause a buffer overflow. While nobody in their
520 right mind would setup Exim to query an untrusted spamd server, an
521 attacker that gains access to a server running spamd could potentially
522 exploit this vulnerability to run arbitrary code as the Exim user.
523
ae276964
TK
524TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
525 $primary_hostname instead of what libspf2 thinks the hosts name is.
526
0f2cbd1b
MH
527MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
528 a directory entry by the name of the lookup key. Previously, if a
529 symlink pointed to a non-existing file or a file in a directory that
530 Exim lacked permissions to read, a lookup for a key matching that
531 symlink would fail. Now it is enough that a matching directory entry
532 exists, symlink or not. (Bugzilla 503.)
533
2b85bce7
PH
534PH/03 The body_linecount and body_zerocount variables are now exported in the
535 local_scan API.
536
93655c46
PH
537PH/04 Added the $dnslist_matched variable.
538
6c512171
PH
539PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
540 This means they are set thereafter only if the connection becomes
541 encrypted.
542
543PH/06 Added the client_condition to authenticators so that some can be skipped
544 by clients under certain conditions.
545
aa6dc513
PH
546PH/07 The error message for a badly-placed control=no_multiline_responses left
547 "_responses" off the end of the name.
548
a96603a0
PH
549PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
550
8f240103
PH
551PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
552 (without spaces) instead of just copying the configuration text.
553
554PH/10 Added the /noupdate option to the ratelimit ACL condition.
555
d677b2f2
PH
556PH/11 Added $max_received_linelength.
557
d52120f2
PH
558PH/12 Added +ignore_defer and +include_defer to host lists.
559
64f2600a
PH
560PH/13 Installed PCRE version 7.2. This needed some changes because of the new
561 way in which PCRE > 7.0 is built.
562
8669f003
PH
563PH/14 Implemented queue_only_load_latch.
564
a4dc33a8
PH
565PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
566 MAIL command. The effect was to mangle the value on 64-bit systems.
567
d6a60c0f
PH
568PH/16 Another patch from the Sieve maintainer.
569
8f128379
PH
570PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
571
8932dffe
PH
572PH/18 If a system quota error occurred while trying to create the file for
573 a maildir delivery, the message "Mailbox is full" was not appended to the
574 bounce if the delivery eventually timed out. Change 4.67/27 below applied
575 only to a quota excession during the actual writing of the file.
d6a60c0f 576
ddea74fa 577PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
578 characters?) which causes problems in log lines. The DN values are now
579 passed through string_printing() before being added to log lines.
580
ddea74fa 581PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
582 and InterBase are left for another time.)
583
ddea74fa
PH
584PH/21 Added message_body_newlines option.
585
ce9f225c
PH
586PH/22 Guard against possible overflow in moan_check_errorcopy().
587
19897d52
PH
588PH/23 POSIX allows open() to be a macro; guard against that.
589
bc64a74d
PH
590PH/24 If the recipient of an error message contained an @ in the local part
591 (suitably quoted, of course), incorrect values were put in $domain and
592 $local_part during the evaluation of errors_copy.
593
eb4c0de6 594
b4ed4da0
PH
595Exim version 4.67
596-----------------
597
22ad45c9
MH
598MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
599 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
600 Jan Srzednicki.
601
b4ed4da0
PH
602PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
603 issue a MAIL command.
604
431b7361
PH
605PH/02 In an ACL statement such as
606
607 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
608
609 if a client was not listed at all, or was listed with a value other than
610 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
611 the condition was not true (as it should be), so access was not denied.
612 The bug was that the ! inversion was incorrectly passed on to the second
613 item. This has been fixed.
614
615PH/03 Added additional dnslists conditions == and =& which are different from
616 = and & when the dns lookup returns more than one IP address.
617
83da1223
PH
618PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
619 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
620
54fc8428
PH
621PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
622 FSYNC, which compiles an option called disable_fsync that allows for
623 bypassing fsync(). The documentation is heavily laced with warnings.
624
34c5e8dd
SC
625SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
626
bbe15da8
PH
627PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
628 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
629 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
630 including adding "make clean"; (3) Added -fPIC when compiling the test
631 dynamically loaded module, to get rid of a warning.
632
0e8a9471
MH
633MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
634 message fails, move_frozen_messages = true and ignore_bounce_errors_after
635 = 0s. The bug is otherwise harmless.
636
f0872424
PH
637PH/07 There was a bug in the dovecot authenticator such that the value of
638 $auth1 could be overwritten, and so not correctly preserved, after a
639 successful authentication. This usually meant that the value preserved by
640 the server_setid option was incorrect.
641
b01dd148
PH
642PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
643
6bf342e1
PH
644PH/09 Installed PCRE release 7.0.
645
273f34d0
PH
646PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
647 run for batched SMTP input. It is now run at the start of every message
648 in the batch. While fixing this I discovered that the process information
649 (output by running exiwhat) was not always getting set for -bs and -bS
650 input. This is fixed, and it now also says "batched" for BSMTP.
651
cf8b11a5
PH
652PH/11 Added control=no_pipelining.
653
41c7c167
PH
654PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
655 patch, slightly modified), and move the expansion of helo_data till after
656 the connection is made in the smtp transport (so it can use these
657 values).
658
9c57cbc0
PH
659PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
660
f3f065bb
PH
661PH/14 Added log_selector = +pid.
662
047bdd8c
PH
663PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
664
0ce9abe6
PH
665PH/16 Add ${if forany and ${if forall.
666
0e22dfd1
PH
667PH/17 Added dsn_from option to vary the From: line in DSNs.
668
4c590bd1
PH
669PH/18 Flush SMTP output before performing a callout, unless control =
670 no_callout_flush is set.
671
09945f1e
PH
672PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
673 was true (the default) a successful delivery failed to delete the retry
674 item, thus causing premature timeout of the address. The bug is now
675 fixed.
676
c51b8e75
PH
677PH/20 Added hosts_avoid_pipelining to the smtp transport.
678
e28326d8
PH
679PH/21 Long custom messages for fakedefer and fakereject are now split up
680 into multiline reponses in the same way that messages for "deny" and
681 other ACL rejections are.
682
75b1493f
PH
683PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
684 with slight modification.
685
7c5214ec
PH
686PH/23 Applied sieve patches from the maintainer "tracking the latest notify
687 draft, changing the syntax and factoring some duplicate code".
688
4311097e
PH
689PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
690 for deliveries of the second and subsequent messages over the same SMTP
691 connection.
692
29f89cad
PH
693PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
694 ${reduce, with only minor "tidies".
695
5e687460
SC
696SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
697
c3611384
PH
698PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
699 expansion side effects.
700
5a11a7b4
PH
701PH/27 When a message times out after an over-quota error from an Exim-imposed
702 quota, the bounce message says "mailbox is full". This message was not
703 being given when it was a system quota that was exceeded. It now should
704 be the same.
705
0e20aff9
MH
706MH/03 Made $recipients available in local_scan(). local_scan() already has
707 better access to the recipient list through recipients_list[], but
708 $recipients can be useful in postmaster-provided expansion strings.
709
ca86f471
PH
710PH/28 The $smtp_command and $smtp_command_argument variables were not correct
711 in the case of a MAIL command with additional options following the
712 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
713 were accidentally chopped off.
714
a14e5636
PH
715PH/29 SMTP synchronization checks are implemented when a command is read -
716 there is a check that no more input is waiting when there shouldn't be
717 any. However, for some commands, a delay in an ACL can mean that it is
718 some time before the response is written. In this time, more input might
719 arrive, invalidly. So now there are extra checks after an ACL has run for
720 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
721 pipelining has not been advertised.
722
ec95d1a6
PH
723PH/30 MH's patch to allow iscntrl() characters to be list separators.
724
42855d71
PH
725PH/31 Unlike :fail:, a custom message specified with :defer: was not being
726 returned in the SMTP response when smtp_return_error_details was false.
727 This has been fixed.
728
57c2c631
PH
729PH/32 Change the Dovecot authenticator to use read() and write() on the socket
730 instead of the C I/O that was originally supplied, because problems were
731 reported on Solaris.
732
58c01c94
PH
733PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
734 Exim which did not show up earlier: it was assuming that a call to
735 SSL_CTX_set_info_callback() might give an error value. In fact, there is
736 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
737 was a macro that became an assignment, so it seemed to work. This has
738 changed to a proper function call with a void return, hence the compile
739 error. Exim's code has been fixed.
740
dee5a20a
PH
741PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
742 cpus.
743
d2ee6114
PH
744PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
745
b2d5182b
PH
746PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
747
79749a79
PH
748PH/37 If a message is not accepted after it has had an id assigned (e.g.
749 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
750 "Completed" line in the log. When some messages of this type were
751 selected by exigrep, they were listed as "not completed". Others were
752 picked up by some special patterns. I have improved the selection
753 criteria to be more general.
79749a79 754
c456d9bb
PH
755PH/38 The host_find_failed option in the manualroute router can now be set
756 to "ignore", to completely ignore a host whose IP address cannot be
757 found. If all hosts are ignored, the behaviour is controlled by the new
758 host_all_ignored option.
759
cd9868ec
PH
760PH/39 In a list of hosts for manualroute, if one item (either because of multi-
761 homing or because of multiple MX records with /mx) generated more than
762 one IP address, and the following item turned out to be the local host,
763 all the secondary addresses of the first item were incorrectly removed
764 from the list, along with the local host and any following hosts (which
765 is what is supposed to happen).
766
ebeaf996
PH
767PH/40 When Exim receives a message, it writes the login name, uid, and gid of
768 whoever called Exim into the -H file. In the case of the daemon it was
769 behaving confusingly. When first started, it used values for whoever
770 started the daemon, but after a SIGHUP it used the Exim user (because it
771 calls itself on a restart). I have changed the code so that it now always
772 uses the Exim user.
773
2679d413
PH
774PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
775 message are rejected with the same error (e.g. no authentication or bad
776 sender address), and a DATA command is nevertheless sent (as can happen
777 with PIPELINING or a stupid MUA), the error message that was given to the
778 RCPT commands is included in the rejection of the DATA command. This is
779 intended to be helpful for MUAs that show only the final error to their
780 users.
781
84024b72
PH
782PH/42 Another patch from the Sieve maintainer.
783
8005d38e
SC
784SC/02 Eximstats - Differentiate between permanent and temporary rejects.
785 Eximstats - Fixed some broken HTML links and added missing column headers
786 (Jez Hancock).
787 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
788 columns for Rejects, Temp Rejects, Ham, and Spam rows.
789
3298c6c6
SC
790SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
791
a43a27c5
PH
792PH/43 Yet another patch from the Sieve maintainer.
793
58eb016e 794PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
795 the response to the final '.' that terminates a message, but only in the
796 case where the client has not sent further data following the '.'
797 (unfortunately, this is allowed). However, in many cases there won't be
798 any further data because there won't be any more messages to send. A call
799 to select() can be used: if it shows that the input is "ready", there is
800 either input waiting, or the socket has been closed. An attempt to read
801 the next input character can distinguish the two cases. Previously, Exim
58eb016e 802 would have sent an OK response which the client would never have see.
563b63fa
PH
803 This could lead to message repetition. This fix should cure that, at
804 least in a lot of common cases.
58eb016e 805
b43a74ea
PH
806PH/45 Do not advertise STARTTLS in response to HELP unless it would be
807 advertised in response to EHLO.
808
b4ed4da0 809
5dd1517f
PH
810Exim version 4.66
811-----------------
812
813PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
814 fixed by 4.65/MH/01 (is this a record?) are fixed:
815
816 (i) An empty string was always treated as zero by the numeric comparison
817 operators. This behaviour has been restored.
818
819 (ii) It is documented that the numeric comparison operators always treat
820 their arguments as decimal numbers. This was broken in that numbers
821 starting with 0 were being interpreted as octal.
822
823 While fixing these problems I realized that there was another issue that
824 hadn't been noticed. Values of message_size_limit (both the global option
825 and the transport option) were treated as octal if they started with 0.
826 The documentation was vague. These values are now always treated as
827 decimal, and I will make that clear in the documentation.
828
829
93cfa765
TK
830Exim version 4.65
831-----------------
832
833TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
834 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
835 versions. (#438)
836
d6066548
MH
837MH/01 Don't check that the operands of numeric comparison operators are
838 integers when their expansion is in "skipping" mode (fixes bug
839 introduced by 4.64-PH/07).
840
4362ff0d
PH
841PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
842 child addresses, Exim now panics and dies. Previously, because the count
843 is held in a short int, deliveries were likely to be lost. As such a
844 large number of recipients for a single message is ridiculous
845 (performance will be very, very poor), I have chosen to impose a limit
846 rather than extend the field.
847
93cfa765 848
944e9e9c
TF
849Exim version 4.64
850-----------------
aa41d2de 851
21d74bd9
TK
852TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
853 leftover -K file (the existence of which was triggered by #402).
854 While we were at it, introduced process PID as part of the -K
855 filename. This should rule out race conditions when creating
856 these files.
857
858TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
859 processing considerably. Previous code took too long for large mails,
860 triggering a timeout which in turn triggers #401.
861
862TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
863 in the DK code in transports.c. sendfile() is not really portable,
864 hence the _LINUX specificness.
944e9e9c
TF
865
866TF/01 In the add_headers option to the mail command in an Exim filter,
867 there was a bug that Exim would claim a syntax error in any
868 header after the first one which had an odd number of characters
869 in the field name.
870
2b1c6e3a
PH
871PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
872 callout verification, Exim cached a "reject" for the entire domain. This
873 is correct for most verifications, but it is not correct for a recipient
874 verification with use_sender or use_postmaster set, because in that case
875 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
876 case of MAIL FROM:<> rejection from other early rejections (e.g.
877 rejection of HELO). When verifying a recipient using a non-null MAIL
878 address, the cache is ignored if it shows MAIL FROM:<> rejection.
879 Whatever the result of the callout, the value of the domain cache is
880 left unchanged (for any other kind of callout, getting as far as trying
881 RCPT means that the domain itself is ok).
882
1f872c80
PH
883PH/02 Tidied a number of unused variable and signed/unsigned warnings that
884 gcc 4.1.1 threw up.
885
886PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
887 manifest itself as EPIPE rather than ECONNECT. When tidying away a
888 session, the daemon ignores ECONNECT errors and logs others; it now
889 ignores EPIPE as well.
890
d203e649
PH
891PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
892 (quoted-printable decoding).
893
cc2ed8f7 894PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 895 later the small subsequent patch to fix an introduced bug.
f951fd57 896
ddfcd446
PH
897PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
898
d45b1de8
PH
899PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
900
901PH/08 An error is now given if message_size_limit is specified negative.
902
38a0a95f 903PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 904 to be given (somewhat) arbitrary names.
38a0a95f 905
a2405d83
JJ
906JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
907 in 4.64-PH/09.
908
909JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
910 miscellaneous code fixes
911
6ea85e9a
PH
912PH/10 Added the log_reject_target ACL modifier to specify where to log
913 rejections.
914
26da7e20
PH
915PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
916 hostname. This is wrong, because it relates to the incoming message (and
917 probably the interface on which it is arriving) and not to the outgoing
918 callout (which could be using a different interface). This has been
919 changed to use the value of the helo_data option from the smtp transport
920 instead - this is what is used when a message is actually being sent. If
921 there is no remote transport (possible with a router that sets up host
922 addresses), $smtp_active_hostname is used.
6ea85e9a 923
14aa5a05 924PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 925 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
926 (a) The code assumed that strncpy() returns a negative number on buffer
927 overflow, which isn't the case. Replaced with Exim's string_format()
928 function.
929 (b) There were several signed/unsigned issues. I just did the minimum
930 hacking in of casts. There is scope for a larger refactoring.
931 (c) The code used strcasecmp() which is not a standard C function.
932 Replaced with Exim's strcmpic() function.
933 (d) The code set only $1; it now sets $auth1 as well.
934 (e) A simple test gave the error "authentication client didn't specify
935 service in request". It would seem that Dovecot has changed its
936 interface. Fortunately there's a specification; I followed it and
937 changed what the client sends and it appears to be working now.
938
ff75a1f7
PH
939PH/13 Added $message_headers_raw to provide the headers without RFC 2047
940 decoding.
941
e6f6568e
PH
942PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
943 address A is aliased to B and C, where B exists and C does not. Without
944 -v the output is "A verified" because verification stops after a
945 successful redirection if more than one address is generated. However,
946 with -v the child addresses are also verified. Exim was outputting "A
947 failed to verify" and then showing the successful verification for C,
948 with its parentage. It now outputs "B failed to verify", showing B's
949 parentage before showing the successful verification of C.
950
d6f6e0dc
PH
951PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
952 look up a TXT record in a specific list after matching in a combined
953 list.
954
322050c2
PH
955PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
956 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
957 they consult the DNS. I had assumed they would set it the way they
958 wanted; and indeed my experiments on Linux seem to show that in some
959 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
960 To be on the safe side, however, I have now made the interface to
961 host_find_byname() similar to host_find_bydns(), with an argument
962 containing the DNS resolver options. The host_find_byname() function now
963 sets these options at its start, just as host_find_bydns() does. The smtp
964 transport options dns_qualify_single and dns_search_parents are passed to
965 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
966 of host_find_byname() use the default settings of RES_DEFNAMES
967 (qualify_single) but not RES_DNSRCH (search_parents).
968
08955dd3
PH
969PH/17 Applied (a modified version of) Nico Erfurth's patch to make
970 spool_read_header() do less string testing, by means of a preliminary
971 switch on the second character of optional "-foo" lines. (This is
972 overdue, caused by the large number of possibilities that now exist.
973 Originally there were few.) While I was there, I also converted the
974 str(n)cmp tests so they don't re-test the leading "-" and the first
975 character, in the hope this might squeeze out yet more improvement.
976
1eccaa59
PH
977PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
978 flag allowing group syntax was set by the header_syntax check but not
979 turned off, possible causing trouble later; (2) The flag was not being
980 set at all for the header_verify test, causing "group"-style headers to
981 be rejected. I have now set it in this case, and also caused header_
982 verify to ignore an empty address taken from a group. While doing this, I
983 came across some other cases where the code for allowing group syntax
984 while scanning a header line wasn't quite right (mostly, not resetting
985 the flag correctly in the right place). These bugs could have caused
986 trouble for malformed header lines. I hope it is now all correct.
987
602e59e5
PH
988PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
989 with the "reply" argument non-NULL. The code, however (which originally
990 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
991 but it didn't always do it. This confused somebody who was copying the
992 code for some other use. I have removed all the tests.
993
411ef850
PH
994PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
995 feature that was used to support insecure browsers during the U.S. crypto
996 embargo. It requires special client support, and Exim is probably the
997 only MTA that supported it -- and would never use it because real RSA is
998 always available. This code has been removed, because it had the bad
999 effect of slowing Exim down by computing (never used) parameters for the
1000 RSA_EXPORT functionality.
1001
7befa435
PH
1002PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1003 authenticator to fail if there's a tab character in the incoming data
1004 (there should never be unless someone is messing about, as it's supposed
1005 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1006 if the connection is using TLS or if the remote IP is the same as the
1007 local IP, and the "valid-client-cert option" if a client certificate has
1008 been verified.
1009
48da4259 1010PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1011 authenticators. This can be used for authorization after authentication
1012 succeeds. (In the case of plaintext, it servers for both authentication
1013 and authorization.)
1014
48da4259
PH
1015PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1016 if any retry times were supplied.
1017
d1d5595c
PH
1018PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1019 connection, where there is no client IP address to check. In this
1020 situation, the verify now always succeeds.
1021
0ef732d9
PH
1022PH/25 Applied John Jetmore's -Mset patch.
1023
328895cc
PH
1024PH/26 Added -bem to be like -Mset, but loading a message from a file.
1025
fd700877
PH
1026PH/27 In a string expansion for a processed (not raw) header when multiple
1027 headers of the same name were present, leading whitespace was being
1028 removed from all of them, but trailing whitespace was being removed only
1029 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1030 before concatenation. Completely empty headers in a concatenation (as
1031 before) are ignored.
fd700877 1032
8dce1a6f
PH
1033PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1034 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1035
17af4a17
PH
1036PH/29 [Removed. This was a change that I later backed out, and forgot to
1037 correct the ChangeLog entry (that I had efficiently created) before
1038 committing the later change.]
f6c332bd
PH
1039
1040PH/30 Exim was sometimes attempting to deliver messages that had suffered
1041 address errors (4xx response to RCPT) over the same connection as other
1042 messages routed to the same hosts. Such deliveries are always "forced",
1043 so retry times are not inspected. This resulted in far too many retries
1044 for the affected addresses. The effect occurred only when there were more
1045 hosts than the hosts_max_try setting in the smtp transport when it had
1046 the 4xx errors. Those hosts that it had tried were not added to the list
1047 of hosts for which the message was waiting, so if all were tried, there
1048 was no problem. Two fixes have been applied:
1049
1050 (i) If there are any address or message errors in an SMTP delivery, none
1051 of the hosts (tried or untried) are now added to the list of hosts
1052 for which the message is waiting, so the message should not be a
1053 candidate for sending over the same connection that was used for a
1054 successful delivery of some other message. This seems entirely
1055 reasonable: after all the message is NOT "waiting for some host".
1056 This is so "obvious" that I'm not sure why it wasn't done
1057 previously. Hope I haven't missed anything, but it can't do any
1058 harm, as the worst effect is to miss an optimization.
1059
1060 (ii) If, despite (i), such a delivery is accidentally attempted, the
1061 routing retry time is respected, so at least it doesn't keep
1062 hammering the server.
1063
c1114884
PH
1064PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1065 in ${readsocket because some servers need this prod.
1066
7a0743eb
PH
1067PH/32 Added some extra debug output when updating a wait-xxx database.
1068
0d85fa3f
PH
1069PH/33 The hint "could be header name not terminated by colon", which has been
1070 given for certain expansion errors for a long time, was not being given
1071 for the ${if def:h_colon_omitted{... case.
1072
1bf43b78
PH
1073PH/34 The spec says: "With one important exception, whenever a domain list is
1074 being scanned, $domain contains the subject domain." There was at least
1075 one case where this was not true.
1076
520de300
PH
1077PH/35 The error "getsockname() failed: connection reset by peer" was being
1078 written to the panic log as well as the main log, but it isn't really
1079 panic-worthy as it just means the connection died rather early on. I have
1080 removed the panic log writing for the ECONNRESET error when getsockname()
1081 fails.
1082
48c7f9e2
PH
1083PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1084 runs only) independently of the message's sender address. This meant
1085 that, if the 4xx error was in fact related to the sender, a different
1086 message to the same recipient with a different sender could confuse
1087 things. In particualar, this can happen when sending to a greylisting
1088 server, but other circumstances could also provoke similar problems.
1089 I have changed the default so that the retry time for these errors is now
1090 based a combination of the sender and recipient addresses. This change
1091 can be overridden by setting address_retry_include_sender=false in the
1092 smtp transport.
1093
99ea1c86
PH
1094PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1095 remote server are returned as part of bounce messages. This was not
1096 happening for LMTP over a pipe (the lmtp transport), but now it is the
1097 same for both kinds of LMTP.
1098
a2042e78
PH
1099PH/38 Despite being documented as not happening, Exim was rewriting addresses
1100 in header lines that were in fact CNAMEs. This is no longer the case.
1101
4fbcfc2e
PH
1102PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1103 and queue runs started by the daemon processed all messages. This has
1104 been fixed so that -R and -S can now usefully be given with -q<time>.
1105
aa41d2de
PH
1106PH/40 Import PCRE release 6.7 (fixes some bugs).
1107
af561417
PH
1108PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1109
3cc66b45
PH
1110PH/42 Give an error if -q is specified more than once.
1111
194cc0e4
PH
1112PH/43 Renamed the variables $interface_address and $interface_port as
1113 $received_ip_address and $received_port, to make it clear that these
1114 values apply to message reception, and not to the outgoing interface when
1115 a message is delivered. (The old names remain recognized, of course.)
1116
a401ddaa
PH
1117PH/44 There was no timeout on the connect() call when using a Unix domain
1118 socket in the ${readsocket expansion. There now is.
1119
4e88a19f
PH
1120PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1121 be meaningful with "accept".
1122
d7d7b289
SC
1123SC/01 Eximstats V1.43
1124 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1125
1126SC/02 Eximstats V1.44
1127 Use a glob alias rather than an array ref in the generated
1128 parser. This improves both readability and performance.
1129
1130SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1131 Collect SpamAssassin and rejection statistics.
1132 Don't display local sender or destination tables unless
1133 there is data to show.
1134 Added average volumes into the top table text output.
1135
1136SC/04 Eximstats V1.46
1137 Collect data on the number of addresses (recipients)
1138 as well as the number of messages.
1139
1140SC/05 Eximstats V1.47
1141 Added 'Message too big' to the list of mail rejection
1142 reasons (thanks to Marco Gaiarin).
1143
1144SC/06 Eximstats V1.48
1145 Mainlog lines which have GMT offsets and are too short to
1146 have a flag are now skipped.
1147
1148SC/07 Eximstats V1.49 (Alain Williams)
1149 Added the -emptyok flag.
1150
1151SC/08 Eximstats V1.50
1152 Fixes for obtaining the IP address from reject messages.
1153
0ea2a468
JJ
1154JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1155 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1156 whitesspace changes from 4.64-PH/27
1157
1158JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1159 match 4.64-PH/13
1160
1161JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1162 are found, allow negative numbers in numeric criteria)
1163
1164JJ/06 exipick.20061117.2, added new $message_body_missing variable
1165
1166JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1167 to match changes made in 4.64-PH/43
1168
8a10f5a4
PH
1169PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1170
30e18802
PH
1171PH/47 Put in an explicit test for a DNS lookup of an address record where the
1172 "domain" is actually an IP address, and force a failure. This locks out
1173 those revolvers/nameservers that support "A-for-A" lookups, in
1174 contravention of the specifications.
1175
55728a4f
PH
1176PH/48 When a host name was looked up from an IP address, and the subsequent
1177 forward lookup of the name timed out, the host name was left in
1178 $sender_host_name, contrary to the specification.
d7d7b289 1179
d7837193
PH
1180PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1181 restricted to single-key lookups, Exim was not diagnosing an error if
1182 * or *@ was used with a query-style lookup.
1183
87054a31
PH
1184PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1185
ea2c01d2
MH
1186MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1187 long ago, but noone interested enough thought of it. Let's just say that
1188 the "1.1" means that there are some new functions that weren't there at
1189 some point in the past.
1190
e4fa6968
PH
1191PH/51 Error processing for expansion failure of helo_data from an smtp
1192 transport during callout processing was broken.
1193
56f5d9bd
PH
1194PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1195 tested/used via the -bh/-bhc/-bs options.
1196
922e1c28
PH
1197PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1198 bug, fixed in subsequent PCRE releases).
1199
21eb6e72
PH
1200PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1201 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1202
a0540757
PH
1203PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1204
944e9e9c 1205
478be7b0
SC
1206Exim version 4.63
1207-----------------
1208
1209SC/01 Use a glob alias rather than an array ref in eximstats generated
1210 parser. This improves both readability and performance.
1211
1212SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1213 Don't display local sender or destination tables in eximstats unless
1214 there is data to show.
1215 Added average volumes into the eximstats top table text output.
1216
1217SC/03 Collect data on the number of addresses (recipients) as well
1218 as the number of messages in eximstats.
1219
2b965a65
TF
1220TF/01 Correct an error in the documentation for the redirect router. Exim
1221 does (usually) call initgroups() when daemonizing.
478be7b0 1222
45b91596
PH
1223TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1224 with consistent privilege compared to when running as a daemon.
478be7b0 1225
c59f5781
TF
1226TF/03 Note in the spec that $authenticated_id is not set for local
1227 submissions from trusted users.
1228
90fc3069
TF
1229TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1230 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1231
6083aca0
TF
1232TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1233 by adding some example configuration directives to the default
1234 configuration file. A little bit of work is required to uncomment the
1235 directives and define how usernames and passwords are checked, but
1236 there is now a framework to start from.
1237
765b530f
PH
1238PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1239 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1240 without this. I don't know how relevant this is to other LDAP libraries.
1241
4e167a8c
PH
1242PH/02 Add the verb name to the "unknown ACL verb" error.
1243
4608d683
PH
1244PH/03 Magnus Holmgren's patch for filter_prepend_home.
1245
b8dc3e4a
PH
1246PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1247
5418e93b
PH
1248PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1249 directory not expanded when it should be if an expanded home directory
1250 was set for the address (which is overridden by the transport).
1251
b4a9bda2
PH
1252PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1253 libradius.
1254
45b91596
PH
1255PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1256 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1257 because it is too late at that time, and has no effect.
1258
5547e2c5
PH
1259PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1260 security issue with \' (bugzilla #107). I could not use the
1261 PQescapeStringConn() function, because it needs a PGconn value as one of
1262 its arguments.
1263
dbcef0ea
PH
1264PH/08 When testing addresses using -bt, indicate those final addresses that
1265 are duplicates that would not cause an additional delivery. At least one
1266 person was confused, thinking that -bt output corresponded to deliveries.
1267 (Suppressing duplicates isn't a good idea as you lose the information
1268 about possibly different redirections that led to the duplicates.)
1269
25257489
PH
1270PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1271 systems where poll() doesn't work, in particular OS X.
1272
c816d124
PH
1273PH/10 Added more information to debugging output for retry time not reached.
1274
a9ccd69a
PH
1275PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1276 operations in malware.c.
1277
75fa1910
PH
1278PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1279 signatures.
1280
a7d7aa58
PH
1281PH/13 If write_rejectlog was set false when logging was sent to syslog with
1282 syslog_duplication set false, log lines that would normally be written
1283 both the the main log and to the reject log were not written to syslog at
1284 all.
1285
42119b09
PH
1286PH/14 In the default configuration, change the use of "message" in ACL warn
1287 statements to "add_header".
1288
41609df5
PH
1289PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1290 not followed by a command (e.g. "seen endif").
1291
a5bd321b
PH
1292PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1293 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1294 latter.
1295
e85a7ad5 1296PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1297 so that it is now:
1298
e85a7ad5
PH
1299 ${if or { \
1300 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1301 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1302 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1303 }{no}{yes}}
1304
e85a7ad5
PH
1305 The Auto-Submitted: and various List- headers are standardised, whereas I
1306 don't think Precedence: ever was.
5dff5817 1307
d8fe1c03
PH
1308PH/18 Refactored debugging code in route_finduser() to show more information,
1309 in particular, the error code if getpwnam() issues one.
1310
16282d2b
PH
1311PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1312 This is apparently needed in addition to the PH/07 change above to avoid
1313 any possible encoding problems.
1314
35d40a98
PH
1315PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1316 but not after initializing Perl.
1317
034d99ab
PH
1318PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1319 output them only if debugging. By default they are written stderr,
1320 apparently, which is not desirable.
1321
6ec97b1b
PH
1322PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1323 queries.
1324
e22ca4ac
JJ
1325JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1326 --not options
1327
1328JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1329
33d73e3b
PH
1330PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1331 authenticated or an ident call has been made. Suppress the default
1332 values for $authenticated_id and $authenticated_sender (but permit -oMai
1333 and -oMas) when testing with -bh.
1334
9ecb03f3
PH
1335PH/24 Re-jigged the order of the tests in the default configuration so that the
1336 tests for valid domains and recipients precede the DNS black list and CSA
1337 tests, on the grounds that those ones are more expensive.
1338
084efe8d
PH
1339PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1340 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1341 This bug exists in every version of Exim that I still have, right back to
1342 0.12.
1343
366fc9f0
PH
1344PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1345 However, an attempt to turn on case-sensitivity in a regex key by
1346 including (?-i) didn't work because the subject string was already
1347 lowercased, and the effects were non-intuitive. It turns out that a
1348 one-line patch can be used to allow (?-i) to work as expected.
1349
c59f5781 1350
c887c79e
TF
1351Exim version 4.62
1352-----------------
1353
1354TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1355 other effects) broke the use of negated acl sub-conditions.
1356
1cce3af8
PH
1357PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1358 patch).
1359
afb3eaaf
PH
1360PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1361 "Deny" causes Exim to reject the incoming connection with a 554 error.
1362 Unfortunately, if there is a major crisis, such as a disk failure,
1363 tcp-wrappers gives "deny", whereas what one would like would be some
1364 kind of temporary error. A kludge has been added to help with this.
1365 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1366 554 error is used if errno is still zero or contains ENOENT (which occurs
1367 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1368 451 error is used.
1369
e173618b
PH
1370PH/03 Add -lutil to the default FreeBSD LIBS setting.
1371
dd16e114
PH
1372PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1373 errors. Otherwise a message that provokes a temporary error (when other
1374 messages do not) can cause a whole host to time out.
1375
f7fd3850
PH
1376PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1377 addresses were routed directly to files or pipes from a redirect router.
1378 File deliveries just didn't batch; pipe deliveries might have suffered
1379 odd errors.
1380
d87df92c
PH
1381PH/06 A failure to get a lock for a hints database would erroneously always say
1382 "Failed to get write lock", even when it was really a read lock.
1383
7e9f683d
PH
1384PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1385 of 0600. This has been changed to use the value of the lockfile_mode
1386 option (which defaults to 0600).
1387
bfad5236
PH
1388PH/08 Applied small patch from the Sieve maintainer.
1389
01c490df
PH
1390PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1391 folder from quota calculations, a direct delivery into this folder messed
1392 up the contents of the maildirsize file. This was because the regex was
1393 used only to exclude .Trash (or whatever) when the size of the mailbox
1394 was calculated. There was no check that a delivery was happening into an
1395 excluded directory. This bug has been fixed by ignoring all quota
1396 processing for deliveries into excluded directories.
1397
d6629cdc
PH
1398PH/10 Added the maildirfolder_create_regex option to appendfile.
1399
1cce3af8 1400
214e2000
PH
1401Exim version 4.61
1402-----------------
1403
1404PH/01 The code for finding all the local interface addresses on a FreeBSD
1405 system running IPv6 was broken. This may well have applied to all BSD
1406 systems, as well as to others that have similar system calls. The broken
1407 code found IPv4 interfaces correctly, but gave incorrect values for the
1408 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1409 that it would not match correctly against @[] and not recognize the IPv6
1410 addresses as local.
1411
f9daeae0
PH
1412PH/02 The ipliteral router was not recognizing addresses of the form user@
1413 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1414
7e66e54d
PH
1415PH/03 Added disable_ipv6.
1416
c8ea1597
PH
1417PH/04 Changed $reply_address to use the raw form of the headers instead of the
1418 decoded form, because it is most often used to construct To: headers
1419 lines in autoreplies, and the decoded form may well be syntactically
1420 invalid. However, $reply_address has leading white space removed, and all
1421 newlines turned into spaces so that the autoreply transport does not
1422 grumble.
1423
911f6fde
PH
1424PH/05 If group was specified without a user on a router, and no group or user
1425 was specified on a transport, the group from the router was ignored.
1426
47ca6d6c
PH
1427PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1428 for visible compile-time settings that can be used to change these
1429 numbers, for those that want even more. Backwards compatibility with old
1430 spool files has been maintained. However, going back to a previous Exim
1431 release will lost any variables that are in spool files.
1432
ed0e9820
PH
1433PH/07 Two small changes when running in the test harness: increase delay when
1434 passing a TCP/IP connection to a new process, in case the original
1435 process has to generate a bounce, and remove special handling of
1436 127.0.0.2 (sic), which is no longer necessary.
1437
eff37e47
PH
1438PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1439 be the same on different OS.
1440
1921d2ea
PH
1441PH/09 Moved a debug statement in filter processing to avoid a race problem when
1442 testing.
1443
b3f69ca8
JJ
1444JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1445 whether --show-vars was specified or not
1446
1447JJ/02 exipick: Added support for new ACL variable spool format introduced
1448 in 4.61-PH/06
1449
424a1c63
PH
1450PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1451 syntactically invalid From: or Reply-to: line, and a filter used this to
1452 generate an autoreply, and therefore failed to obtain an address for the
1453 autoreply, Exim could try to deliver to a non-existent relative file
1454 name, causing unrelated and misleading errors. What now happens is that
1455 it logs this as a hard delivery error, but does not attempt to create a
1456 bounce message.
1457
7a100415
PH
1458PH/11 The exinext utility has a -C option for testing purposes, but although
1459 the given file was scanned by exinext itself; it wasn't being passed on
1460 when Exim was called.
1461
19b9dc85
PH
1462PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1463 an end-of-file indication when reading a command response.
1464
309bd837
PH
1465PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1466 compiled. In many other places in Exim, IPv6 addresses are always
1467 recognized, so I have changed this. It also means that IPv4 domain
1468 literals of the form [IPV4:n.n.n.n] are now always recognized.
1469
59e82a2a
PH
1470PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1471 used if the router is not running as root, for example, when verifying at
1472 ACL time, or when using -bh. The debugging output from this situation was
1473 non-existent - all you got was a failure to exec. I have made two
1474 changes:
1475
1476 (a) Failures to set uid/gid, the current directory, or a process leader
1477 in a subprocess such as that created by queryprogram now generate
1478 suitable debugging ouput when -d is set.
1479
1480 (b) The queryprogram router detects when it is not running as root,
1481 outputs suitable debugging information if -d is set, and then runs
1482 the subprocess without attempting to change uid/gid.
1483
9edc04ce
PH
1484PH/15 Minor change to Makefile for building test_host (undocumented testing
1485 feature).
1486
1349e1e5
PH
1487PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1488 additional section of a DNS packet that returns MX or SRV records.
1489 Instead, it always explicitly searches for A/AAAA records. This avoids
1490 major problems that occur when a DNS server includes only records of one
1491 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1492 fixed another bug: if SRV records were looked up and the corresponding
1493 address records were *not* found in the additional section, the port
1494 values from the SRV records were lost.
1495
ea49d0e1
PH
1496PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1497 using the correct key (the original address) when searching the retry
1498 rules in order to find which one to use for generating the retry hint.
1499
064a94c9
PH
1500PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1501 adding the default one. Similarly, if it contains a Reply-To: header, the
1502 errors_reply_to option, if set, is not used.
1503
727071f8
PH
1504PH/19 When calculating a retry time, Exim used to measure the "time since
1505 failure" by looking at the "first failed" field in the retry record. Now
1506 it does not use this if it is later than than the arrival time of the
1507 message. Instead it uses the arrival time. This makes for better
1508 behaviour in cases where some deliveries succeed, thus re-setting the
1509 "first failed" field. An example is a quota failure for a huge message
1510 when small messages continue to be delivered. Without this change, the
1511 "time since failure" will always be short, possible causing more frequent
1512 delivery attempts for the huge message than are intended.
dd16e114 1513 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1514
f78eb7c6
PH
1515PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1516 $1, $2, $3) because the numerical variables can be reset during some
1517 expansion items (e.g. "match"), thereby losing the authentication data.
1518
21c28500
PH
1519PH/21 Make -bV show the size of off_t variables so that the test suite can
1520 decide whether to run tests for quotas > 2G.
1521
1522PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1523 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1524 filecount value is greater than 2G or if a quota value is greater than 2G
1525 on a system where the size of off_t is not greater than 4, a panic error
1526 is given.
1527
1688f43b
PH
1528PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1529 never match. The debug and -bh output now contains an explicit error
1530 message indicating a malformed IPv4 address or mask.
1531
1532PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1533 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1534 PH/23 above applies.
1535
9675b384
PH
1536PH/25 Do not write to syslog when running in the test harness. The only
1537 occasion when this arises is a failure to open the main or panic logs
1538 (for which there is an explicit test).
1539
6a3f1455
PH
1540PH/26 Added the /no_tell option to "control=freeze".
1541
dac79d3e
PH
1542PH/27 If a host name lookup failed very early in a connection, for example, if
1543 the IP address matched host_lookup and the reverse lookup yielded a name
1544 that did not have a forward lookup, an error message of the form "no IP
1545 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1546 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1547
5977a0b3
PH
1548PH/28 An enabling patch from MH: add new function child_open_exim2() which
1549 allows the sender and the authenticated sender to be set when
1550 submitting a message from within Exim. Since child_open_exim() is
1551 documented for local_scan(), the new function should be too.
1552
c91535f3
PH
1553PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1554 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1555 results in an empty string is now treated as unset.
1556
0d46a8c8
PH
1557PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1558
278c6e6c
PH
1559PH/31 Added sender_verify_fail logging option.
1560
2cbb4081
PH
1561PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1562 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1563 tidied the source and removed it altogether.
1564
3eef829e
PH
1565PH/33 When a queue run was abandoned because the load average was too high, a
1566 log line was always written; now it is written only if the queue_run log
1567 selector is set. In addition, the log line for abandonment now contains
1568 information about the queue run such as the pid. This is always present
1569 in "start" and "stop" lines but was omitted from the "abandon" line.
1570
1ab95fa6
PH
1571PH/34 Omit spaces between a header name and the colon in the error message that
1572 is given when verify = headers_syntax fails (if there are lots of them,
1573 the message gets confusing).
1574
230205fc
PH
1575PH/35 Change the default for dns_check_names_pattern to allow slashes within
1576 names, as there are now some PTR records that contain slashes. This check
1577 is only to protect against broken name servers that fall over on strange
1578 characters, so the fact that it applies to all lookups doesn't matter.
1579
75e0e026
PH
1580PH/36 Now that the new test suite is complete, we can remove some of the
1581 special code in Exim that was needed for the old test suite. For example,
1582 sorting DNS records because real resolvers return them in an arbitrary
1583 order. The new test suite's fake resolver always returns records in the
1584 same order.
1585
1586PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1587 bounces) except when queue_only is set, to avoid logging races between
1588 the different processes.
1589
145396a6
PH
1590PH/38 Panic-die if .include specifies a non-absolute path.
1591
3cd34f13
PH
1592PH/39 A tweak to the "H" retry rule from its user.
1593
11121d3d
JJ
1594JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1595 a label. They prevented compilation on older perls.
1596
1597JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1598 a warning to be raised on newish perls.
1599
1600JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1601 on queue. Changes to match documented behaviour of showing count of
1602 messages matching specified criteria.
1603
8def5aaf
PH
1604PH/40 Changed the default ident timeout from 30s to 5s.
1605
929ba01c
PH
1606PH/41 Added support for the use of login_cap features, on those BSD systems
1607 that have them, for controlling the resources used by pipe deliveries.
1608
2632889e
PH
1609PH/42 The content-scanning code uses fopen() to create files in which to put
1610 message data. Previously it was not paying any attention to the mode of
1611 the files. Exim runs with umask(0) because the rest of the code creates
1612 files with open(), and sets the required mode explicitly. Thus, these
1613 files were ending up world-writeable. This was not a big issue, because,
1614 being within the spool directory, they were not world-accessible. I have
1615 created a function called modefopen, which takes an additional mode
1616 argument. It sets umask(777), creates the file, chmods it to the required
1617 mode, then resets the umask. All the relevant calls to fopen() in the
1618 content scanning code have been changed to use this function.
1619
944a9c55
PH
1620PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1621 to 24 hours. This avoids potential overflow problems when processing G
1622 and H retry rules. I suspect nobody ever tinkers with this value.
1623
4a23603b
PH
1624PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1625
4730f942
PH
1626PH/45 When the plaintext authenticator is running as a client, the server's
1627 challenges are checked to ensure they are valid base64 strings. By
1628 default, the authentication attempt is cancelled if an invalid string is
1629 received. Setting client_ignore_invalid_base64 true ignores these errors.
1630 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1631 they are received. Thus, the responses can be made to depend on the
1632 challenges. If an invalid string is ignored, an empty string is placed in
1633 the variable.
1634
30dba1e6
PH
1635PH/46 Messages that are created by the autoreply transport now contains a
1636 References: header, in accordance with RFCs 2822 and 3834.
1637
382afc6b
PH
1638PH/47 Added authenticated_sender_force to the smtp transport.
1639
a86229cf
PH
1640PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1641
50c99ba6
PH
1642PH/49 Installed latest patch from the Sieve maintainer.
1643
d35e429d
PH
1644PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1645 was also set, the appendfile transport was unnecessarily scanning a
1646 directory of message files (e.g. for maildir delivery) to find the count
1647 of files (along with the size), even though it did not need this
1648 information. It now does the scan only if it needs to find either the
1649 size of the count of files.
1650
f90d018c
PH
1651PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1652
75def545
PH
1653PH/52 Two bugs concerned with error handling when the smtp transport is
1654 used in LMTP mode:
1655
1656 (i) Exim was not creating retry information for temporary errors given
1657 for individual recipients after the DATA command when the smtp transport
1658 was used in LMTP mode. This meant that they could be retried too
1659 frequently, and not timed out correctly.
1660
1661 (ii) Exim was setting the flag that allows error details to be returned
1662 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1663 recipients that were returned after the DATA command.
1664
1665PH/53 This is related to PH/52, but is more general: for any failing address,
1666 when detailed error information was permitted to be returned to the
1667 sender, but the error was temporary, then after the final timeout, only
1668 "retry timeout exceeded" was returned. Now it returns the full error as
1669 well as "retry timeout exceeded".
1670
c46782ef
PH
1671PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1672 do this, and (what is worse) MTAs that accept it.
1673
71fafd95
PH
1674PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1675 will now be deprecated.
1676
2c5db4fd
PH
1677PH/56 New os.c-cygwin from the Cygwin maintainer.
1678
9cf6b11a
JJ
1679JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1680 formats (previously only available in exim formats via -bpr, -bpru,
1681 and -bpra. Now also available in native and exiqgrep formats)
1682
1683JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1684 with very large, slow to parse queues
1685
1686JJ/08 exipick: added ! as generic prefix to negate any criteria format
1687
1688JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1689
898d150f
PH
1690PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1691 responses to authentication challenges, though it was showing the
1692 challenges; (ii) I've removed the CR characters from the debug output for
1693 SMTP output lines.
1694
46218253
PH
1695PH/58 Allow for the insertion of a newline as well as a space when a string
1696 is turned into more than one encoded-word during RFC 2047 encoding. The
1697 Sieve code now uses this.
1698
e97957bc
PH
1699PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1700 data_4xx, lost_connection, tls_required.
1701
81e509d7
PH
1702PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1703 message was being sent as an SMTP response.
1704
3d240ff7
PH
1705PH/61 Add -l and -k options to exicyclog.
1706
b37c4101
PH
1707PH/62 When verifying, if an address was redirected to one new address, so that
1708 verification continued, and the new address failed or deferred after
1709 having set something in $address_data, the value of $address_data was not
1710 passed back to the ACL. This was different to the case when no
1711 redirection occurred. The value is now passed back in both cases.
1712
79378e0f
PH
1713PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1714 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1715 use login_cap.h, so on its own it isn't the distinguishing feature. The
1716 new name refers directly to the setclassresources() function.
1717
e49c7bb4
PH
1718PH/65 Added configuration files for NetBSD3.
1719
d114ec46
PH
1720PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1721
f3d7df6c
PH
1722PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1723 is preferred over IPv4.
1724
715ab376
PH
1725PH/68 The bounce_return_message and bounce_return_body options were not being
1726 honoured for bounces generated during the reception of non-SMTP messages.
1727 In particular, this applied to messages rejected by the ACL. This bug has
1728 been fixed. However, if bounce_return_message is true and bounce_return_
1729 body is false, the headers that are returned for a non-SMTP message
1730 include only those that have been read before the error was detected.
1731 (In the case of an ACL rejection, they have all been read.)
1732
6b31b150
PH
1733PH/69 The HTML version of the specification is now built in a directory called
1734 spec_html instead of spec.html, because the latter looks like a path with
1735 a MIME-type, and this confuses some software.
1736
1737PH/70 Catch two compiler warnings in sieve.c.
1738
d515a917
PH
1739PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1740 function verify_get_ident() calls ip_connect() to connect a socket, but
1741 if the "connect()" function timed out, ip_connect() used to close the
1742 socket. However, verify_get_ident() also closes the socket later, and in
1743 between Exim writes to the log, which may get opened at this point. When
1744 the socket was closed in ip_connect(), the log could get the same file
1745 descriptor number as the socket. This naturally causes chaos. The fix is
1746 not to close the socket in ip_connect(); the socket should be closed by
1747 the function that creates it. There was only one place in the code where
1748 this was missing, in the iplookup router, which I don't think anybody now
1749 uses, but I've fixed it anyway.
1750
9b8fadde
PH
1751PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1752 well as to direct DNS lookups. Otherwise the handling of names in host
1753 lists is inconsistent and therefore confusing.
1754
214e2000 1755
5de37277
PH
1756Exim version 4.60
1757-----------------
1758
cc38ddbf
PH
1759PH/01 Two changes to the default runtime configuration:
1760
1761 (1) Move the checks for relay_from_hosts and authenticated clients from
1762 after to before the (commented out) DNS black list checks.
1763
1764 (2) Add control=submission to the relay_from_hosts and authenticated
1765 clients checks, on the grounds that messages accepted by these
1766 statements are most likely to be submissions.
5de37277 1767
72fdd6ae
PH
1768PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1769
1770 (1) Generate an error if the third argument for the ${prvs expansion is
1771 not a single digit.
1772
1773 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1774 string.
1775
1776 (3) Reset the variables that are obtained from the first argument of
1777 ${prvscheck and used in the second argument before leaving the code,
1778 because their memory is reclaimed, so using them afterwards may do
1779 silly things.
1780
1781 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1782 one (it's much easier than Tom thought :-).
1783
1784 (5) Because of (4), we can now allow for the use of $prvscheck_result
1785 inside the third argument.
cb9328de 1786
cb741023
PH
1787PH/03 For some reason, the default setting of PATH when running a command from
1788 a pipe transport was just "/usr/bin". I have changed it to
1789 "/bin:/usr/bin".
1790
f174f16e
PH
1791PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1792 anything to be listed in the output from -bV.
b2f5a032 1793
c25242d7
PH
1794PH/05 When a filter generated an autoreply, the entire To: header line was
1795 quoted in the delivery log line, like this:
1796
1797 => >A.N.Other <ano@some.domain> <original@ddress> ...
1798
1799 This has been changed so that it extracts the operative address. There
1800 may be more than one such address. If so, they are comma-separated, like
1801 this:
1802
1803 => >ano@some.domain,ona@other.domain <original@ddress> ...
1804
82c19f95
PH
1805PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1806 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1807 not being looked up in the rDNS to get a host name, Exim was showing the
1808 IP address twice in Received: lines, even though the IP addresses were
1809 identical. For example:
1810
1811 Received: from [1.2.3.4] (helo=[1.2.3.4])
1812
1813 However, if the real host name was known, it was omitting the HELO data
1814 if it matched the actual IP address. This has been tidied up so that it
1815 doesn't show the same IP address twice.
1816
d7ffbc12
PH
1817PH/07 When both +timestamp and +memory debugging was on, the value given by
1818 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1819 called by the debug printing, thereby overwriting the timestamp buffer.
1820 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1821
9f526266
PH
1822PH/08 When the original message was included in an autoreply transport, it
1823 always said "this is a copy of the message, including all the headers",
1824 even if body_only or headers_only was set. It now gives an appropriate
1825 message.
1826
87fcc8b9
PH
1827PH/09 Applied a patch from the Sieve maintainer which:
1828
1829 o fixes some comments
1830 o adds the (disabled) notify extension core
1831 o adds some debug output for the result of if/elsif tests
1832 o points to the current vacation draft in the documentation
1833 and documents the missing references header update
1834
1835 and most important:
1836
1837 o fixes a bug in processing the envelope test (when testing
1838 multiple envelope elements, the last element determinted the
1839 result)
1840
456682f5
PH
1841PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1842 Electronic Mail") by including:
1843
1844 Auto-submitted: auto-generated
1845
1846 in the messages that it generates (bounce messages and others, such as
1847 warnings). In the case of bounce messages for non-SMTP mesages, there was
1848 also a typo: it was using "Auto_submitted" (underscore instead of
1849 hyphen). Since every message generated by Exim is necessarily in response
1850 to another message, thes have all been changed to:
1851
1852 Auto-Submitted: auto-replied
1853
1854 in accordance with these statements in the RFC:
1855
1856 The auto-replied keyword:
1857
1858 - SHOULD be used on messages sent in direct response to another
1859 message by an automatic process,
1860
1861 - MUST NOT be used on manually-generated messages,
1862
1863 - MAY be used on Delivery Status Notifications (DSNs) and Message
1864 Disposition Notifications (MDNs),
1865
1866 - MUST NOT be used on messages generated by automatic or periodic
1867 processes, except for messages which are automatic responses to
1868 other messages.
1869
3e46c1aa
PH
1870PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1871 to the default Received: header definition.
456682f5 1872
49826d12
PH
1873PH/12 Added log selector acl_warn_skipped (default on).
1874
eba0c039
PH
1875PH/13 After a successful wildlsearch lookup, discard the values of numeric
1876 variables because (a) they are in the wrong storage pool and (b) even if
1877 they were copied, it wouldn't work properly because of the caching.
1878
a0d6ba8a
PH
1879PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1880 checking when decoding. Apparently there are clients that generate
1881 overlong encoded strings. Why am I not surprised?
1882
f0917727
PH
1883PH/15 If the first argument of "${if match_address" was not empty, but did not
1884 contain an "@" character, Exim crashed. Now it writes a panic log message
1885 and treats the condition as false.
1886
096fee00
PH
1887PH/16 In autoreply, treat an empty string for "once" the same as unset.
1888
024bd3c2
PH
1889PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1890 extension "envelope-auth". The code is finished and in agreement with
1891 other implementations, but there is no documentation so far and in fact,
1892 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1893 not changing the active code.
1894
1895 Print executed "if" and "elsif" statements when debugging is used. This
1896 helps a great deal to understand what a filter does.
1897
1898 Document more things not specified clearly in RFC3028. I had all this
1899 sorted out, when out of a sudden new issues came to my mind. Oops."
1900
df199fec
PH
1901PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1902 (Bugzilla #53).
1903
d27f1df3
PH
1904PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1905 canonical form (as documented). However, after a host name lookup from
1906 the IP address, check_host() was doing a simple string comparison with
1907 addresses acquired from the DNS when checking that the found name did
1908 have the original IP as one of its addresses. Since any found IPv6
1909 addresses are likely to be in abbreviated form, the comparison could
1910 fail. Luckily, there already exists a function for doing the comparison
1911 by converting both addresses to binary, so now that is used instead of
1912 the text comparison.
1913
96776534
PH
1914PH/20 There was another similar case to PH/19, when a complete host name was
1915 given in a host list; looking up its IP address could give an abbreviated
1916 form, whereas the current host's name might or might not be abbreviated.
1917 The same fix has been applied.
1918
5de37277 1919
9a799bc0
PH
1920Exim version 4.54
1921-----------------
1922
1923PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1924 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1925 It now does.
1926
99a4b039
PH
1927PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1928 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1929
1930PH/03 Typo: missing ".o" in src/pcre/Makefile.
1931
4b233853
PH
1932PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1933 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1934 Also, for "Auto-Submitted", treat anything other than "no" as
1935 non-personal, in accordance with RFC 3834. (Previously it treated
1936 anything starting "auto-" as non-personal.)
1937
8857ccfd
PH
1938TF/01 The control=submission/name=... option had a problem with syntax
1939 errors if the name included a slash character. The /name= option
1940 now slurps the rest of the string, so it can include any characters
1941 but it must come last in the list of options (after /sender_retain
1942 or /domain=).
1943
433a2980
PH
1944PH/05 Some modifications to the interface to the fake nameserver for the new
1945 testing suite.
1946
3e46c1aa 1947
9a799bc0 1948
e3a311ba
TK
1949Exim version 4.53
1950-----------------
1951
1952TK/01 Added the "success_on_redirect" address verification option. See
1953 NewStuff for rationale and an example.
1954
13b685f9
PH
1955PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1956
395ff96d
PH
1957PH/02 Patch to exigrep to allow it to work on syslog lines.
1958
5b68f6e4
PH
1959PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1960 fread() to skip over the body file's header line, because in Cygwin the
1961 header line is locked and is inaccessible.
1962
1ab52c69
PH
1963PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1964 co-exist for some time) to make it clear that it is the Exim ID that is
1965 referenced, not the Message-ID: header line.
1966
b07e6aa3
PH
1967PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1968 string_format() function, because snprintf() does not exist on all
1969 operating systems.
1970
254e032f
PH
1971PH/06 The use of forbid_filter_existstest now also locks out the use of the
1972 ${stat: expansion item.
1973
3af76a81
PH
1974PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1975 protocol synchronization error", to keep the pedants happy.
1976
2548ba04
PH
1977PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1978 well as for IRIX systems, when gcc is being used. See the host.c source
1979 file for comments.
1980
b6c6011d
PH
1981PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1982
cf39cf57
PH
1983PH/10 Named domain lists were not working if used in a queue_smtp_domains
1984 setting.
1985
f1513293
PH
1986PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1987 transport and to the smtp transport in LMTP mode.
1988
727549a4
PH
1989TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1990
af46795e
PH
1991PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1992 run a filter in a subprocess. This could lead to confusion in subsequent
1993 lookups in the parent process. There should also be a search_tidyup() at
1994 the end of the subprocess.
1995
d7b47fd0
PH
1996PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1997 only if the host matched helo_try_verify_hosts, which caused the
1998 verification to occur when the EHLO/HELO command was issued. The ACL just
1999 tested the remembered result. Now, if a previous verification attempt has
2000 not happened, "verify = helo" does it there and then.
2001
ee744174
JJ
2002JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2003
b582ab87
PH
2004TK/03 Fix log output including CR from clamd.
2005
41a13e0a
PH
2006PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2007 exist provoked a memory error which could cause a segfault.
2008
f625cc5a
PH
2009PH/15 Installed PCRE 6.2
2010
2011PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2012
21f7af35
PH
2013PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2014 of the problem. Specifically, suggested +O2 rather than +O1 for the
2015 HP-UX compiler.
2016
31480e42
PH
2017PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2018
2d280592
PH
2019PH/20 If a delivery was routed to a non-standard port by means of an SRV
2020 record, the port was not correctly logged when the outgoing_port log
2021 selector was set (it logged the transort's default port).
2022
7cd1141b
PH
2023PH/21 Added support for host-specific ports to manualroute, queryprogram,
2024 fallback_hosts, and "hosts" in the smtp transport.
2025
2026PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2027 host errors such as "Connection refused".
2028
750af86e
PH
2029PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2030 authentication with radiusclient 0.4.9:
2031
2032 - Error returned from rc_read_config was caught wrongly
2033 - Username/password not passed on to radius server due to wrong length.
2034
2035 The presumption is that some radiusclient API changes for 4.51/PH/17
2036 were not taken care of correctly. The code is still untested by me (my
2037 Linux distribution still has 0.3.2 of radiusclient), but it was
2038 contributed by a Radius user.
2039
2040PH/24 When doing a callout, the value of $domain wasn't set correctly when
2041 expanding the "port" option of the smtp transport.
2042
4304270b
TK
2043TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2044 while reading a MIME header. Thanks to Tom Hughes for a patch.
2045
750af86e
PH
2046PH/24 Include config.h inside local_scan.h so that configuration settings are
2047 available.
2048
64ffc24f
PH
2049PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2050 that in an ACL for RCPT (for example), you can examine exactly what was
2051 received.
2052
5dd9625b
PH
2053PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2054 commands, but it was not correctly comparing the address with the actual
2055 client host address. Thus, it would show the EHLO address in Received:
2056 header lines when this was not necessary.
2057
5591031b
PH
2058PH/27 Added the % operator to ${eval:}.
2059
ba18e66a
PH
2060PH/28 Exim tries to create and chdir to its spool directory when it starts;
2061 it should be ignoring failures (because with -C, for example, it has lost
2062 privilege). It wasn't ignoring creation failures other than "already
2063 exists".
2064
9cec981f
PH
2065PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2066 -bV or -d is used.
2067
aa2b5c79
PH
2068PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2069 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2070 too many continuations, the temporary file was not being removed, and the
2071 return code was incorrect.
aa2b5c79 2072
48a53b7f
PH
2073PH/31 Missing "BOOL" in function definition in filtertest.c.
2074
1c59d63b
PH
2075PH/32 Applied Sieve patches from the maintainer.
2076
671012da
TK
2077TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2078
1509d3a8
PH
2079PH/33 Added "verify = not_blind".
2080
2081PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2082 Local/Makefile (with some defaults set). These are used in built scripts
2083 such as exicyclog, but they have never been used in the exim_install
2084 script (though there are many overriding facilities there). I have
2085 arranged that the exim_install script now takes note of these two
2086 settings.
2087
2088PH/35 Installed configuration files for Dragonfly.
2089
2fe1a124
PH
2090PH/36 When a locally submitted message by a trusted user did not contain a
2091 From: header, and the sender address was obtained from -f or from an SMTP
2092 MAIL command, and the trusted user did not use -F to supply a sender
2093 name, $originator_name was incorrectly used when constructing a From:
2094 header. Furthermore, $originator_name was used for submission mode
2095 messages from external hosts without From: headers in a similar way,
2096 which is clearly wrong.
2097
8800895a
PH
2098PH/37 Added control=suppress_local_fixups.
2099
ccfdb010
PH
2100PH/38 When log_selector = +received_sender was set, and the addition of the
2101 sender made the log line's construction buffer exactly full, or one byte
2102 less than full, an overflow happened when the terminating "\n" was
2103 subsequently added.
2104
1130bfb0
PH
2105PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2106 when the result of a list match is failure because a DNS lookup failed.
2107
ebcb507f
PH
2108PH/40 RM_COMMAND is now used in the building process.
2109
c35e155c
PH
2110PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2111 the "build-* directories that it finds.
2112
95d1f782
PH
2113PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2114 address in a domain literal was a prefix of an interface address.
2115
fd6de02e
PH
2116PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2117 when verifying a sender address, unless rewrite_headers is false.
2118
58de37c5
PH
2119PH/44 Wrote a long comment about why errors_to addresses are verified as
2120 recipients, not senders.
2121
261cf466
TF
2122TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2123 the ratelimit ACL was added.
2124
3ee512ff
PH
2125PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2126
e08c430f
PH
2127PH/46 Added extra information about PostgreSQL errors to the error string.
2128
bef5a11f
PH
2129PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2130 avoiding the need to install special zones in a real server. This is
2131 backwards compatible; if it can't find the fake resolver, it drops back.
2132 Thus, both old and new test suites can be run.
2133
7546de58
TF
2134TF/02 Added util/ratelimit.pl
2135
e5d5a95f
TF
2136TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2137 clock is set back in time.
2138
2e88a017
TF
2139TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2140 Candler <B.Candler@pobox.com>.
2141
a5f65aa4
TF
2142TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2143 OK for addresses that are the result of redirections.
2144
e7726cbf
PH
2145PH/48 A number of further additions for the benefit of the new test suite,
2146 including a fake gethostbyname() that interfaces to the fake DNS resolver
2147 (see PH/47 above).
2148
a7fdad5b
TF
2149TF/06 The fix for widen_domains has also been applied to qualify_single and
2150 search_parents which are the other dnslookup options that can cause
2151 header rewrites.
2152
6af56900
PH
2153PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2154 type ("H").
2155
0925ede6
PH
2156PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2157
66afa403
TF
2158TF/07 Exim produced the error message "an SRV record indicated no SMTP
2159 service" if it encountered an MX record with an empty target hostname.
2160 The message is now "an MX or SRV record indicated no SMTP service".
2161
0154e85a
TF
2162TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2163 if the DNS of the sending site is misconfigured. This is quite a
2164 common situation. This change restores the behaviour of treating a
2165 helo verification defer as a failure.
2166
16f12c76
PH
2167PH/51 If self=fail was set on a router, the bounce message did not include the
2168 actual error message.
2169
bbe902f0 2170
e5a9dba6
PH
2171Exim version 4.52
2172-----------------
2173
2174TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2175
22c3b60b
PH
2176PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2177 command itself ended in error, the underlying message about the transport
2178 filter timeout was being overwritten with the pipe command error. Now the
2179 underlying error message should be appended to the second error message.
2180
06a9b4b5
PH
2181TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2182
c1ac6996
PH
2183PH/02 Reduce the amount of output that "make" produces by default. Full output
2184 can still be requested.
2185
9c7a242c
PH
2186PH/03 The warning log line about a condition test deferring for a "warn" verb
2187 was being output only once per connection, rather than after each
2188 occurrence (because it was using the same function as for successful
2189 "warn" verbs). This seems wrong, so I have changed it.
2190
87ba3f5f
PH
2191TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2192 it should not have, which might have caused a crash in the right
2193 circumstances, but probably never did.
2194
2195PH/04 Installed a modified version of Tony Finch's patch to make submission
2196 mode fix the return path as well as the Sender: header line, and to
2197 add a /name= option so that you can make the user's friendly name appear
2198 in the header line.
2199
29aba418
TF
2200TF/03 Added the control = fakedefer ACL modifier.
2201
fe0dab11
TF
2202TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2203 Mark Lowes for thorough testing.
870f6ba8 2204
11d337a4
TK
2205TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2206
2207TK/03 Merged latest SRS patch from Miles Wilton.
2208
415c8f3b
PH
2209PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2210 with the definition in sysexits.h (which is #included earlier).
2211 Fortunately, Exim does not actually use EX_OK. The code used to try to
2212 preserve the sysexits.h value, by assumimg that macro definitions were
2213 scanned for macro replacements. I have been disabused of this notion,
2214 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2215
958541e9
PH
2216PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2217 in the smtp transport. When a block could not be written in a single
2218 write() function, the timeout was being re-applied to each part-write.
2219 This seems wrong - if the receiver was accepting one byte at a time it
2220 would take for ever. The timeout is now adjusted when this happens. It
2221 doesn't have to be particularly precise.
2222
c206415f
TK
2223TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2224 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2225
2a4be8f9
PH
2226PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2227 without a domain if the check to <postmaster@domain> fails.
2228
1cba11c5
SC
2229SC/01 Eximstats: added -xls and the ability to specify output files
2230 (patch written by Frank Heydlauf).
2231
2232SC/02 Eximstats: use FileHandles for outputing results.
2233
2234SC/03 Eximstats: allow any combination of xls, txt, and html output.
2235
2236SC/04 Eximstats: fixed display of large numbers with -nvr option
2237
2238SC/05 Eximstats: fixed merging of reports with empty tables.
2239
2240SC/06 Eximstats: added the -include_original_destination flag
2241
2242SC/07 Eximstats: removed tabs and trailing whitespace.
2243
1005d00e
TK
2244TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2245
2246TK/06 MBOX spool code: Add real "From " MBOX separator line
2247 so the .eml file is really in mbox format (even though
2248 most programs do not really care). Patch from Alex Miller.
2249
2250TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2251 The latter is generated from $received_to and is only set if the
2252 message has one envelope recipient. SA can use these headers,
2253 obviously out-of-the-box. Patch from Alex Miller.
2254
9b4768fa
PH
2255PH/08 The ${def test on a variable was returning false if the variable's
2256 value was "0", contrary to what the specification has always said!
2257 The result should be true unless the variable is empty.
2258
2259PH/09 The syntax error of a character other than { following "${if
2260 def:variable_name" (after optional whitespace) was not being diagnosed.
2261 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2262 accidental colon was present, for example, could give incorrect results.
2263
0d7eb84a
PH
2264PH/10 Tidied the code in a number of places where the st_size field of a stat()
2265 result is used (not including appendfile, where other changes are about
2266 to be made).
2267
2268PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2269 This involved changing a lot of size variables from int to off_t. It
2270 should work with maildirs and everything.
2271
40727bee
TK
2272TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2273 spamd dying while we are connected to it.
2274
554d2369
TF
2275TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2276 <jgh@wizmail.org>
2277
1f922db1
PH
2278PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2279 function for BDB 4.3.
2280
ef213c3b
PH
2281PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2282
8ac170f3
PH
2283PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2284 the sources for PCRE have been re-arranged and more files are now
2285 involved.
2286
b1c749bb
PH
2287PH/15 The code I had for printing potentially long long variables in PH/11
2288 above was not the best (it lost precision). The length of off_t variables
2289 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2290 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2291 to be "long long int" or "long int". This is needed for the internal
2292 formatting function string_vformat().
b1c749bb 2293
4aac9b49
PH
2294PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2295 the configuration file to be ":syslog", then the script "guesses" where
2296 the logs files are, rather than using the compiled in default. In our
2297 case the guess is not the same as the compiled default, so the script
2298 suddenly stopped working when I started to use syslog. The patch checks
2299 to see if log_file_path is "". If so, it attempts to read it from exim
2300 with no configuration file to get the compiled in version, before it
2301 falls back to the previous guessing code."
2302
294520c8
TK
2303TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2304 implementing BATV in an Exim configuration. See NewStuff for the gory
2305 details.
2306
5bd022fe
PH
2307PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2308 Makefile that are specific to HP-UX.
2309
90e9ce59
PH
2310PH/18 If the "use_postmaster" option was set for a recipient callout together
2311 with the "random" option, the postmaster address was used as the MAIL
2312 FROM address for the random test, but not for the subsequent recipient
2313 test. It is now used for both.
2314
5ea81592
PH
2315PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2316 patch removes a few documentation additions to RFC 3028, because the
2317 latest draft now contains them. It adds the new en;ascii-case comparator
2318 and a new error check for 8bit text in MIME parts. Comparator and
2319 require names are now matched exactly. I enabled the subaddress
2320 extension, but it is not well tested yet (read: it works for me)."
2321
c6c2dc1d
PH
2322PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2323 rework some of the code of TK/09 above to avoid the hardwired use of
2324 "%lld" and "long long". Replaced the call to snprintf() with a call to
2325 string_vformat().
2326
fffffe4c
PH
2327PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2328 records point to non-existent hosts", "retry timeout exceeded", and
2329 "retry time not reached for any host after a long failure period".
ca02eafb 2330
9a26b6b2
PH
2331PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2332 experimental DomainKeys support:
2333
2334 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2335 (2) On an error such as an illegally used "control", the wrong name for
2336 the control was given.
2337
2338 These problems did NOT occur unless DomainKeys support was compiled.
2339
4aee0225
PH
2340PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2341
32d668a5
PH
2342PH/24 Added ${if match_ip condition.
2343
8187c3f3
PH
2344PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2345 databases so that it will be absolutely obvious if a crash occurs in the
2346 DB library. This is a regular occurrence (often caused by mis-matched
2347 db.h files).
2348
ff790e47 2349PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2350 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2351 picked up on a user's system that detects such things. There doesn't seem
2352 to be a gcc warning option for this - only an attribute that has to be
2353 put on the function's prototype. It seems that in Fedora Core 4 they have
2354 set this on a number of new functions. No doubt there will be more in due
2355 course.
ff790e47 2356
5417f6d1
PH
2357PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2358 specify a transport. However, if an address that was verified by such a
2359 router was the subject of a callout, Exim crashed because it tried to
2360 read the rcpt_include_affixes from the non-existent transport. Now it
2361 just assumes that the setting of that option is false. This bug was
2362 introduced by 4.51/PH/31.
2363
59cf8544
PH
2364PH/28 Changed -d+all to exclude +memory, because that information is very
2365 rarely of interest, but it makes the output a lot bigger. People tend to
2366 do -d+all out of habit.
2367
e7ad8a65
PH
2368PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2369 code in os-type was giving problems when libc.so lives in lib64, like on
2370 x86_64 Fedora Core.
2371
ade42478
PH
2372PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2373 aren't the modern standard, and it seems that some systems' include files
2374 don't always have them. Exim was already checking for some of the newer
2375 ones like T_AAAA, and defining it itself. I've added checks for all the
2376 record types that Exim uses.
2377
182ad5cf
PH
2378PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2379 not automatically generating a new one, as it is supposed to. This
2380 prevented TLS from working. If the file did exist, but contained invalid
2381 data, a new version was generated, as expected. It was only the case of a
2382 non-existent file that was broken.
2383
b0d9fc80
TK
2384TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2385 with a change in libdomainkeys > 0.64.
2386
2387TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2388 from DNS. If the selector record carries the flag, it now has
2389 precedence over the domain-wide flag.
2390
2391TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2392
47c7a64a
PH
2393PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2394 the use of a port name that isn't defined in /etc/services) occurred, the
2395 message was deferred as in a normal delivery, and thus remained on the
2396 spool, instead of being failed because of the mua_wrapper setting. This
2397 is now fixed, and I tidied up some of the mua_wrapper messages at the
2398 same time.
2399
a388bce4
SC
2400SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2401 the messages in a hash of arrays rather than using individual hashes.
2402 This is a bit cleaner and results in dramatic memory savings, albeit
2403 at a slight CPU cost.
2404
2405SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2406 as requested by Marc Sherman.
2407
2408SC/10 Eximstats: added histograms for user specified patterns as requested
2409 by Marc Sherman.
2410
0793e4ed
SC
2411SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2412
c58b88df
PH
2413PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2414 fopen() in the content-scanning modules that did not already have it.
2415
e7ad8a65 2416
7982096b
PH
2417Exim version 4.51
2418-----------------
2419
1a46a8c5
PH
2420TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2421 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2422
2f079f46 2423TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2424
2425TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2426
2427PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2428 to test Sieve filters that use "vacation".
2429
2430PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2431 that changes the way the GnuTLS parameters are stored in the cache file.
2432 The new format can be generated externally. For backward compatibility,
2433 if the data in the cache doesn't make sense, Exim assumes it has read an
2434 old-format file, and it generates new data and writes a new file. This
2435 means that you can't go back to an older release without removing the
2436 file.
2437
2438PH/03 A redirect router that has both "unseen" and "one_time" set does not
2439 work if there are any delivery delays because "one_time" forces the
2440 parent to be marked "delivered", so its unseen clone is never tried
2441 again. For this reason, Exim now forbids the simultaneous setting of
2442 these two options.
2443
2444PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2445 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2446 entry if you want to know the details. The fix, however, neglected to
2447 consider the case when local delivery batching is involved. The test for
2448 "previously delivered" was not happening when checking to see if an
2449 address could be batched with a previous (undelivered) one; under
2450 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2451 address.
1a46a8c5
PH
2452
2453PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2454 in its include files, and this causes problems building Exim.
2455
2456PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2457 header_syntax) but Exim was just ignoring anything given after a slash.
2458 In particular, this caused confusion with an attempt to use "verify =
2459 reverse_host_lookup/defer_ok". An error is now given when options are
2460 supplied for verify items that do not have them. (Maybe reverse_host_
2461 lookup should have a defer_ok option, but that's a different point.)
2462
2463PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2464 defined by RFC 821) to 2048, because there were problems with some AUTH
2465 commands, and RFC 1869 says the size should be increased for extended
2466 SMTP commands that take arguments.
2467
2468PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2469 Finch).
2470
2471PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2472 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2473
49c2d5ea
PH
2474PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2475 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2476 whatever). Otherwise the password may appear in the log. Following change
2477 PH/42 below, there is no longer a chance of it appearing in a bounce
2478 message.
49c2d5ea 2479
bf759a8b
PH
2480PH/11 Installed exipick version 20050225.0 from John Jetmore.
2481
83364d30
PH
2482PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2483 of its addresses was ever tried. (Bugzilla bug #2.)
2484
7999bbd7
PH
2485PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2486 the result incorrectly in the debug output. (It correctly added a newline
2487 to what was transported.)
2488
7dbf77c9
PH
2489TF/01 Added $received_time.
2490
74e0617f
PH
2491PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2492 commented out examples of how to interface to a virus scanner and to
2493 SpamAssassin. Also added commented examples of av_scanner and
2494 spamd_address settings.
2495
2f079f46
PH
2496PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2497 and controls are allowed in which ACLs. There were a couple of minor
2498 errors. Some of the entries in the conditions table (which is a table of
2499 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2500 negation of where the condition IS allowed.
2501
8c841523
PH
2502PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2503
7766a4f0
PH
2504PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2505 header file does not have a version number, so I've had to invent a new
2506 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2507 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2508 radiusclient), but it was contributed by a Radius user.
2509
8b417f2c
PH
2510PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2511 files or directories, for OpenSSL.
2512
901f42cb
PH
2513PH/19 When an Exim process that is running as root has to create an Exim log
2514 file, it does so in a subprocess that runs as exim:exim so as to get the
2515 ownership right at creation (otherwise, other Exim processes might see
2516 the file with the wrong ownership). There was no test for failure of this
2517 fork() call, which would lead to the process getting stuck as it waited
2518 for a non-existent subprocess. Forks do occasionally fail when resources
2519 run out. I reviewed all the other calls to fork(); they all seem to check
2520 for failure.
2521
f9b9210e
PH
2522PH/20 When checking for unexpected SMTP input at connect time (before writing
2523 the banner), Exim was not dealing correctly with a non-positive return
2524 from the read() function. If the client had disconnected by this time,
2525 the result was a log entry for a synchronization error with an empty
2526 string after "input=" when read() returned zero. If read() returned -1
2527 (an event I could not check), uninitialized data bytes were printed.
2528 There were reports of junk text (parts of files, etc) appearing after
2529 "input=".
2530
54cdb463
PH
2531PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2532
cf00dad6
PH
2533PH/22 Added support for macro redefinition, and (re)definition in between
2534 driver and ACL definitions.
2535
acb1b346
PH
2536PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2537 forgetting to use the resulting value; it was using the unexpanded value.
2538
c5ddb310
PH
2539PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2540 hadn't been configured. The fix is from Juergen Kreileder, who
2541 understands it better than I do:
2542
2543 "Here's what I see happening with three configured cyrus_sasl
2544 authenticators configured (plain, login, cram-md5):
2545
2546 On startup auth_cyrus_sasl_init() gets called for each of these.
2547 This means three calls to sasl_listmech() without a specified mech_list.
2548 => SASL tests which mechs of all available mechs actually work
2549 => three warnings about OTP not working
2550 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2551
2552 With the patch, sasl_listmech() also gets called three times. But now
2553 SASL's mech_list option is set to the server_mech specified in the the
2554 authenticator. Or in other words, the answer from sasl_listmech()
2555 gets limited to just the mech you're testing for (which is different
2556 for each call.)
2557 => the return list contains just 'plain' or 'login', 'cram-md5' or
2558 nothing depending on the value of ob->server_mech.
2559
2560 I've just tested the patch: Authentication still works fine,
2561 unavailable mechs specified in the exim configuration are still
2562 caught, and the auth.log warnings about OTP are gone."
2563
31619da6
PH
2564PH/25 When debugging is enabled, the contents of the command line are added
2565 to the debugging output, even when log_selector=+arguments is not
2566 specified.
2567
bebaf0fc
PH
2568PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2569 answer is "GNU", and only if the return is "GNU/something" is the answer
2570 "Linux".
2571
475fe28a
PH
2572PH/27 $acl_verify_message is now set immediately after the failure of a
2573 verification in an ACL, and so is available in subsequent modifiers. In
2574 particular, the message can be preserved by coding like this:
2575
2576 warn !verify = sender
2577 set acl_m0 = $acl_verify_message
2578
2579 Previously, $acl_verify_message was set only while expanding "message"
2580 and "log_message" when a very denied access.
2581
7e8bec7a
PH
2582PH/28 Modified OS/os.c-Linux with
2583
2584 -#ifndef OS_LOAD_AVERAGE
2585 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2586
2587 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2588 nomenclature these days.)
2589
e4a89c47
PH
2590PH/29 Installed patch from the Sieve maintainer that adds the options
2591 sieve_useraddress and sieve_subaddress to the redirect router.
2592
5ca2a9a1
PH
2593PH/30 In these circumstances:
2594 . Two addresses routed to the same list of hosts;
2595 . First host does not offer TLS;
2596 . First host accepts first address;
2597 . First host gives temporary error to second address;
2598 . Second host offers TLS and a TLS session is established;
2599 . Second host accepts second address.
2600 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2601 and peerdn, if requested) that were in fact used only for the second
2602 address.
7e8bec7a 2603
c688b954
PH
2604PH/31 When doing a callout as part of verifying an address, Exim was not paying
2605 attention to any local part prefix or suffix that was matched by the
2606 router that accepted the address. It now behaves in the same way as it
2607 does for delivery: the affixes are removed from the local part unless
2608 rcpt_include_affixes is set on the transport.
2609
fed77020
PH
2610PH/32 Add the sender address, as F=<...>, to the log line when logging a
2611 timeout during the DATA phase of an incoming message.
2612
7fe1560f
PH
2613PH/33 Sieve envelope tests were broken for match types other than :is. I have
2614 applied a patch sanctioned by the Sieve maintainer.
c688b954 2615
ebb6e6d5
PH
2616PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2617 the uid or gid is negative. A case of a negative gid caused this to be
2618 noticed. The fix allows for either to be negative.
2619
9c4e8f60
PH
2620PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2621 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2622 overlooked.
2623
2624PH/36 The change PH/12 above was broken. Fixed it.
2625
d7174846
PH
2626PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2627 the grounds that routing the same address twice would always produce the
2628 same answer. This might have been true once, but it is certainly no
2629 longer true now. Routing a child address may depend on the previous
2630 routing that produced that child. Some complicated redirection strategies
2631 went wrong when messages had multiple recipients, and made Exim's
2632 behaviour dependent on the order in which the addresses were given.
2633
2634 I have moved the duplicate checking until after the routing is complete.
2635 Exim scans the addresses that are assigned to local and remote
2636 transports, and removes any duplicates. This means that more work will be
2637 done, as duplicates will always all be routed, but duplicates are
2638 presumably rare, so I don't expect this is of any significance.
2639
2640 For deliveries to pipes, files, and autoreplies, the duplicate checking
2641 still happens during the routing process, since they are not going to be
2642 routed further.
2643
cfe75fc3
PH
2644PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2645 It corrects a timeout issue with spamd. This is Ian's comment: "The
2646 background is that sometimes spamd either never reads data from a
2647 connection it has accepted, or it never writes response data. The exiscan
2648 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2649 blindly assumes that writes won't block so it may never time out."
2650
be22d70e
PH
2651PH/39 Allow G after quota size as well as K and M.
2652
0612b098
PH
2653PH/40 The value set for $authenticated_id in an authenticator may not contain
2654 binary zeroes or newlines because the value is written to log lines and
2655 to spool files. There was no check on this. Now the value is run through
2656 the string_printing() function so that such characters are converted to
2657 printable escape sequences.
2658
2e0c1448
PH
2659PH/41 $message_linecount is a new variable that contains the total number of
2660 lines in the message. Compare $body_linecount, which is the count for the
2661 body only.
2662
447d236c
PH
2663PH/42 Exim no longer gives details of delivery errors for specific addresses in
2664 bounce and delay warning messages, except in certain special cases, which
2665 are as follows:
2666
2667 (a) An SMTP error message from a remote host;
2668 (b) A message specified in a :fail: redirection;
2669 (c) A message specified in a "fail" command in a system filter;
2670 (d) A message specified in a FAIL return from the queryprogram router;
2671 (e) A message specified by the cannot_route_message router option.
2672
2673 In these cases only, Exim does include the error details in bounce and
2674 warning messages. There are also a few cases where bland messages such
2675 as "unrouteable address" or "local delivery error" are given.
2676
d20976dc
PH
2677PH/43 $value is now also set for the "else" part of a ${run expansion.
2678
f656d135
PH
2679PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2680 being worked on, but at least Exim now implements the latest version to
2681 play with."
2682
2e2a30b4
PH
2683PH/45 In a pipe transport, although a timeout while waiting for the pipe
2684 process to complete was treated as a delivery failure, a timeout while
2685 writing the message to the pipe was logged, but erroneously treated as a
2686 successful delivery. Such timeouts include transport filter timeouts. For
2687 consistency with the overall process timeout, these timeouts are now
2688 treated as errors, giving rise to delivery failures by default. However,
2689 there is now a new Boolean option for the pipe transport called
2690 timeout_defer, which, if set TRUE, converts the failures into defers for
2691 both kinds of timeout. A transport filter timeout is now identified in
2692 the log output.
2693
9176e9f0
PH
2694PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2695 systems where "make" and "gmake" are different, calling "gmake" at top
2696 level broke things. I've arranged for the value of $(MAKE) to be passed
2697 from the Makefile to this script so that it can call the same version of
2698 "make".
2699
7982096b 2700
bbe902f0
PH
2701A note about Exim versions 4.44 and 4.50
2702----------------------------------------
2703
2704Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2705changes of various kinds. As a consequence, a big documentation update was
2706needed. This delayed the release for rather longer than seemed good, especially
2707in the light of a couple of (minor) security issues. Therefore, the changes
2708that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2709release. So 4.44 and 4.50 are in effect two different branches that both start
2710from 4.43.
2711
2712I have left the 4.50 change log unchanged; it contains all the changes since
27134.43. The change log for 4.44 is below; many of its items are identical to
2714those for 4.50. This seems to be the most sensible way to preserve the
2715historical information.
2716
2717
f7b63901 2718Exim version 4.50
495ae4b0
PH
2719-----------------
2720
5fe762f6
PH
2721 1. Minor wording change to the doc/README.SIEVE file.
2722
139059f6 2723 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2724 computation of the current number of files was incorrect.
495ae4b0 2725
7086e875
PH
2726 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2727 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2728 place.
2729
35af9f61
PH
2730 4. Give more explanation in the error message when the command for a transport
2731 filter fails to execute.
2732
b668c215
PH
2733 5. There are several places where Exim runs a non-Exim command in a
2734 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2735 was being done only for the command run by the queryprogram router. It is
2736 now done for all such subprocesses. The other cases are: ${run, transport
2737 filters, and the commands run by the lmtp and pipe transports.
2738
a494b1e1
PH
2739 6. Added CONFIGURE_GROUP build-time option.
2740
2741 7. Some older OS have a limit of 256 on the maximum number of file
2742 descriptors. Exim was using setrlimit() to set 1000 as a large value
2743 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2744 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2745
c5fcb476
PH
2746 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2747 was an oversight, and furthermore, ever since the addition of extra
2748 controls (e.g. 4.43/32), the checks on when to allow different forms of
2749 "control" were broken. There should now be diagnostics for all cases when a
2750 control that does not make sense is encountered.
2751
69358f02
PH
2752 9. Added the /retain_sender option to "control=submission".
2753
5be20824
PH
275410. $recipients is now available in the predata ACL (oversight).
2755
eb2c0248
PH
275611. Tidy the search cache before the fork to do a delivery from a message
2757 received from the command line. Otherwise the child will trigger a lookup
2758 failure and thereby defer the delivery if it tries to use (for example) a
2759 cached ldap connection that the parent has called unbind on.
2760
2a3eea10
PH
276112. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2762 of $address_data from the recipient verification was clobbered by the
2763 sender verification.
2764
276513. The value of address_data from a sender verification is now available in
2766 $sender_address_data in subsequent conditions in the ACL statement.
2767
23c7ff99
PH
276814. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2769
4deaf07d
PH
277015. Added a new option "connect=<time>" to callout options, to set a different
2771 connection timeout.
2772
926e1192
PH
277316. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2774 was its contents. (It was OK if the option was not defined at all.)
2775
650edc6f
PH
277617. A "Completed" log line is now written for messages that are removed from
2777 the spool by the -Mrm option.
2778
2c7db3f5
PH
277918. New variables $sender_verify_failure and $recipient_verify_failure contain
2780 information about exactly what failed.
2781
3d235903
PH
278219. Added -dd to debug only the daemon process.
2783
7c7ad977
PH
278420. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2785 handles timeouts, both on the server side and network timeouts. Renamed the
2786 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2787
981756db
PH
278821. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2789 It is now set to "smtps".
2790
d4eb88df
PH
279122. $host_address is now set to the target address during the checking of
2792 ignore_target_hosts.
2793
279423. When checking ignore_target_hosts for an ipliteral router, no host name was
2795 being passed; this would have caused $sender_host_name to have been used if
2796 matching the list had actually called for a host name (not very likely,
2797 since this list is usually IP addresses). A host name is now passed as
2798 "[x.x.x.x]".
2799
7d468ab8
PH
280024. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2801 code that specifies a non-restarting handler (typically sigaction() in
2802 modern systems) in an attempt to fix a rare and obscure crash bug.
2803
280425. Narrowed the window for a race in the daemon that could cause it to ignore
2805 SIGCHLD signals. This is not a major problem, because they are used only to
2806 wake it up if nothing else does.
2807
62c0818f
PH
280826. A malformed maildirsize file could cause Exim to calculate negative values
2809 for the mailbox size or file count. Odd effects could occur as a result.
2810 The maildirsize information is now recalculated if the size or filecount
2811 end up negative.
2812
26034054
PH
281327. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2814 support for a long time. Removed HAVE_SYS_VFS_H.
2815
af66f652
PH
281628. Installed the latest version of exipick from John Jetmore.
2817
90af77f4
PH
281829. In an address list, if the pattern was not a regular expression, an empty
2819 subject address (from a bounce message) matched only if the pattern was an
2820 empty string. Non-empty patterns were not even tested. This was the wrong
2821 because it is perfectly reasonable to use an empty address as part of a
2822 database query. An empty address is now tested by patterns that are
2823 lookups. However, all the other forms of pattern expect the subject to
2824 contain a local part and a domain, and therefore, for them, an empty
2825 address still always fails if the pattern is not itself empty.
2826
d8ef3577
PH
282730. Exim went into a mad DNS loop when attempting to do a callout where the
2828 host was specified on an smtp transport, and looking it up yielded more
2829 than one IP address.
2830
5cb8cbc6
PH
283131. Re-factored the code for checking spool and log partition space into a
2832 function that finds that data and another that does the check. The former
2833 is then used to implement four new variables: $spool_space, $log_space,
2834 $spool_inodes, and $log_inodes.
2835
14702f5b
PH
283632. The RFC2047 encoding function was originally intended for short strings
2837 such as real names; it was not keeping to the 75-character limit for
2838 encoded words that the RFC imposes. It now respects the limit, and
2839 generates multiple encoded words if necessary. To be on the safe side, I
2840 have increased the buffer size for the ${rfc2047: expansion operator from
2841 1024 to 2048 bytes.
2842
063b1e99
PH
284333. It is now permitted to omit both strings after an "if" condition; if the
2844 condition is true, the result is "true". As before, when the second string
2845 is omitted, a false condition yields an empty string. This makes it less
2846 cumbersome to write custom ACL and router conditions.
2847
652e1b65
PH
284834. Failure to deliver a bounce message always caused it to be frozen, even if
2849 there was an errors_to setting on the router. The errors_to setting is now
2850 respected.
2851
6f0c9a4f
PH
285235. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2853 canonical form (fully expanded) before being placed in
2854 $sender_host_address.
2855
33397d19
PH
285636. The table in the code that translates DNS record types into text (T_A to
2857 "A" for instance) was missing entries for NS and CNAME. It is just possible
2858 that this could have caused confusion if both these types were looked up
2859 for the same domain, because the text type is used as part of Exim's
2860 per-process caching. But the chance of anyone hitting this buglet seems
2861 very small.
2862
7bb56e1f
PH
286337. The dnsdb lookup has been extended in a number of ways.
2864
2865 (1) There is a new type, "zns", which walks up the domain tree until it
2866 finds some nameserver records. It should be used with care.
2867
ea3bc19b
PH
2868 (2) There is a new type, "mxh", which is like "mx" except that it returns
2869 just the host names, not the priorities.
2870
2871 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2872 looked up. The behaviour when one of the lookups defers can be
2873 controlled by a keyword.
7bb56e1f 2874
ea3bc19b 2875 (4) It is now possible to specify the separator character for use when
7bb56e1f 2876 multiple records are returned.
33397d19 2877
0bcb2a0e
PH
287838. The dnslists ACL condition has been extended: it is now possible to supply
2879 a list of IP addresses and/or domains to be looked up in a particular DNS
2880 domain.
2881
2ac0e484
PH
288239. Added log_selector=+queue_time_overall.
2883
4e1fde53
PH
288440. When running the queue in the test harness, wait just a tad after forking a
2885 delivery process, to get repeatability of debugging output.
2886
de365ded
PH
288741. Include certificate and key file names in error message when GnuTLS fails
2888 to set them up, because the GnuTLS error message doesn't include the name
2889 of the failing file when there is a problem reading it.
2890
f05da2e8
PH
289142. Allow both -bf and -bF in the same test run.
2892
d6453af2
PH
289343. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2894
f7b63901
PH
289544. The "Exiscan patch" is now merged into the mainline Exim source.
2896
289745. Sometimes the final signoff response after QUIT could fail to get
2898 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2899 < 0 before doing a fflush(). This bug looks as though it goes back to the
2900 introduction of TLS in release 3.20, but "sometimes" must have been rare
2901 because the tests only now provoked it.
2902
a444213a
PH
290346. Reset the locale to "C" after calling embedded Perl, in case it was changed
2904 (this can affect the format of dates).
2905
0ec020ea
PH
290647. exim_tidydb, when checking for the continued existence of a message for
2907 which it has found a message-specific retry record, was not finding
2908 messages that were in split spool directories. Consequently, it was
2909 deleting retry records that should have stayed in existence.
2910
b1206957
PH
291148. Steve fixed some bugs in eximstats.
2912
291349. The SPA authentication driver was not abandoning authentication and moving
2914 on to the next authenticator when an expansion was forced to fail,
2915 contradicting the general specification for all authenticators. Instead it
2916 was generating a temporary error. It now behaves as specified.
2917
26dd5a95
PH
291850. The default ordering of permitted cipher suites for GnuTLS was pessimal
2919 (the order specifies the preference for clients). The order is now AES256,
2920 AES128, 3DES, ARCFOUR128.
2921
343b2385
PH
292251. Small patch to Sieve code - explicitly set From: when generating an
2923 autoreply.
2924
1c5466b9
PH
292552. Exim crashed if a remote delivery caused a very long error message to be
2926 recorded - for instance if somebody sent an entire SpamAssassin report back
2927 as a large number of 550 error lines. This bug was coincidentally fixed by
2928 increasing the size of one of Exim's internal buffers (big_buffer) that
2929 happened as part of the Exiscan merge. However, to be on the safe side, I
2930 have made the code more robust (and fixed the comments that describe what
2931 is going on).
2932
55ee9ee3
PH
293353. Now that there can be additional text after "Completed" in log lines (if
2934 the queue_time_overall log selector is set), a one-byte patch to exigrep
2935 was needed to allow it to recognize "Completed" as not the last thing in
2936 the line.
2937
d38f8232
PH
293854. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2939 patch that reportedly fixes this has been added. I am not expert enough to
2940 create a test for it. This is what the patch creator wrote:
2941
2942 "I found a little strange behaviour of ldap code when working with
2943 Windows 2003 AD Domain, where users was placed in more than one
2944 Organization Units. When I tried to give exim partial DN, the exit code
2945 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2946 But simultaneously result of request was absolutely normal ldap result,
2947 so I produce this patch..."
2948
3295e65b
PH
2949 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2950 REFERENCE, so I have modified the code to exclude the patch when that macro
2951 is not defined.
2952
7102e136
PH
295355. Some experimental protocols are using DNS PTR records for new purposes. The
2954 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2955 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2956 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2957 CAN-2005-0021
7102e136 2958
3ca0ba97
PH
295956. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2960
c2bcbe20
PH
296157. Double the size of the debug message buffer (to 2048) so that more of very
2962 long debug lines gets shown.
2963
18ce445d
PH
296458. The exicyclog utility now does better if the number of log files to keep
2965 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2966
1f5b4c3d
PH
296759. Two changes related to the smtp_active_hostname option:
2968
2969 (1) $smtp_active_hostname is now available as a variable.
2970 (2) The default for smtp_banner uses $smtp_active_hostname instead
2971 of $primary_hostname.
2972
b975ba52
PH
297360. The host_aton() function is supposed to be passed a string that is known
2974 to be a valid IP address. However, in the case of IPv6 addresses, it was
2975 not checking this. This is a hostage to fortune. Exim now panics and dies
2976 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2977 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2978 components; fortuitously, this particular loophole had already been fixed
2979 by change 4.50/55 above.
2980
2981 If there are any other similar loopholes, the new check in host_aton()
2982 itself should stop them being exploited. The report I received stated that
2983 data on the command line could provoke the exploit when Exim was running as
2984 exim, but did not say which command line option was involved. All I could
2985 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2986 running as the user.
ea3a6f44 2987 CAN-2005-0021
85b87bc2
PH
2988
298961. There was a buffer overflow vulnerability in the SPA authentication code
2990 (which came originally from the Samba project). I have added a test to the
2991 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2992 CAN-2005-0022
b975ba52 2993
17ffcae7
PH
299462. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2995 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2996
d95f9fdb
PH
299763. The daemon start-up calls getloadavg() while still root for those OS that
2998 need the first call to be done as root, but it missed one case: when
2999 deliver_queue_load_max is set with deliver_drop_privilege. This is
3000 necessary for the benefit of the queue runner, because there is no re-exec
3001 when deliver_drop_privilege is set.
3002
86b8287f
PH
300364. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3004 This has been fixed.
3005
60dc5e56
PH
300665. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3007 was in use, was not putting the data itself into the right store pool;
3008 consequently, it could be overwritten for a subsequent message in the same
3009 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3010 the caching.)
3011
533244af
PH
301266. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3013
a5a28604
PH
301467. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3015 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3016 the function were treating the return as a boolean value, which happened to
3017 work because 0=false and not-0=true, but is not correct code.
3018
7e634d24
PH
301968. The host_aton() function was not handling scoped IPv6 addresses (those
3020 with, for example, "%eth0" on the end) correctly.
3021
3e11c26b
PH
302269. Fixed some compiler warnings in acl.c for the bitmaps specified with
3023 negated items (that is, ~something) in unsigned ints. Some compilers
3024 apparently mutter when there is no cast.
3025
6729cf78
PH
302670. If an address verification called from an ACL failed, and did not produce a
3027 user-specific message (i.e. there was only a "system" message), nothing was
3028 put in $acl_verify_message. In this situation, it now puts the system
3029 message there.
3030
00f00ca5
PH
303171. Change 4.23/11 added synchronization checking at the start of an SMTP
3032 session; change 4.31/43 added the unwanted input to the log line - except
3033 that it did not do this in the start of session case. It now does.
3034
c9bdd01c
PH
303572. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3036 This is wrong and can cause the other end to generate a synchronization
3037 error if it is another Exim or anything else that does the synchronization
3038 check. A QUIT command is no longer sent after a timeout.
3039
d43194df
PH
304073. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3041 during host lookups.
3042
fe5b5d0b
PH
304374. The defer_ok option of callout verification was not working if it was used
3044 when verifying addresses in header lines, that is, for this case:
3045
3046 verify = header_sender/callout=defer_ok
3047
76a2d7ba
PH
304875. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3049 those file descriptors could be used for SMTP connections. If anything
3050 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3051 could be sent to the SMTP client, causing chaos. The daemon now opens
3052 stdin, stdout, and stderr to /dev/null when it puts itself into the
3053 background.
3054
305576. Arrange for output from Perl's "warn" command to be written to Exim's main
3056 log by default. The user can override this with suitable Perl magic.
3057
04f7d5b9
PH
305877. The use of log_message on a "discard" ACL verb, which is supposed to add to
3059 the log message when discard triggers, was not working for the DATA ACL or
3060 for the non-SMTP ACL.
3061
bc60667e
PH
306278. Error message wording change in sieve.c.
3063
bb6e88ff
PH
306479. If smtp_accept_max_per_host was set, the number of connections could be
3065 restricted to fewer than expected, because the daemon was trying to set up
3066 a new connection before checking whether the processes handling previous
3067 connections had finished. The check for completed processes is now done
3068 earlier. On busy systems, this bug wouldn't be noticed because something
3069 else would have woken the daemon, and it would have reaped the completed
3070 process earlier.
3071
1e70f85b
PH
307280. If a message was submitted locally by a user whose login name contained one
3073 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3074 It caused a spool format error. I have fixed the spool reading code. A
3075 related problem was that the "from" clause in the Received: line became
3076 illegal because of the space(s). It is now covered by ${quote_local_part.
3077
307881. Included the latest eximstats from Steve (adds average sizes to HTML Top
3079 tables).
3080
4e01f9d6
PH
308182. Updated OS/Makefile-AIX as per message from Mike Meredith.
3082
1ee1cef2
PH
308383. Patch from Sieve maintainer to fix unterminated string problem in
3084 "vacation" handling.
3085
6e2b4ccc
PH
308684. Some minor changes to the Linux configuration files to help with other
3087 OS variants using glibc.
3088
8e669ac1
PH
308985. One more patch for Sieve to update vacation handling to latest spec.
3090
495ae4b0 3091
bbe902f0
PH
3092----------------------------------------------------
3093See the note above about the 4.44 and 4.50 releases.
3094----------------------------------------------------
3095
3096
3097Exim version 4.44
3098-----------------
3099
3100 1. Change 4.43/35 introduced a bug that caused file counts to be
3101 incorrectly computed when quota_filecount was set in an appendfile
3102 transport
3103
3104 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3105 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3106 place.
3107
3108 3. Give more explanation in the error message when the command for a transport
3109 filter fails to execute.
3110
3111 4. There are several places where Exim runs a non-Exim command in a
3112 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3113 was being done only for the command run by the queryprogram router. It is
3114 now done for all such subprocesses. The other cases are: ${run, transport
3115 filters, and the commands run by the lmtp and pipe transports.
3116
3117 5. Some older OS have a limit of 256 on the maximum number of file
3118 descriptors. Exim was using setrlimit() to set 1000 as a large value
3119 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3120 systems. I've change it so that if it can't get 1000, it tries for 256.
3121
3122 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3123 was an oversight, and furthermore, ever since the addition of extra
3124 controls (e.g. 4.43/32), the checks on when to allow different forms of
3125 "control" were broken. There should now be diagnostics for all cases when a
3126 control that does not make sense is encountered.
3127
3128 7. $recipients is now available in the predata ACL (oversight).
3129
3130 8. Tidy the search cache before the fork to do a delivery from a message
3131 received from the command line. Otherwise the child will trigger a lookup
3132 failure and thereby defer the delivery if it tries to use (for example) a
3133 cached ldap connection that the parent has called unbind on.
3134
3135 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3136 of $address_data from the recipient verification was clobbered by the
3137 sender verification.
3138
313910. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3140 was its contents. (It was OK if the option was not defined at all.)
3141
314211. A "Completed" log line is now written for messages that are removed from
3143 the spool by the -Mrm option.
3144
314512. $host_address is now set to the target address during the checking of
3146 ignore_target_hosts.
3147
314813. When checking ignore_target_hosts for an ipliteral router, no host name was
3149 being passed; this would have caused $sender_host_name to have been used if
3150 matching the list had actually called for a host name (not very likely,
3151 since this list is usually IP addresses). A host name is now passed as
3152 "[x.x.x.x]".
3153
315414. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3155 code that specifies a non-restarting handler (typically sigaction() in
3156 modern systems) in an attempt to fix a rare and obscure crash bug.
3157
315815. Narrowed the window for a race in the daemon that could cause it to ignore
3159 SIGCHLD signals. This is not a major problem, because they are used only to
3160 wake it up if nothing else does.
3161
316216. A malformed maildirsize file could cause Exim to calculate negative values
3163 for the mailbox size or file count. Odd effects could occur as a result.
3164 The maildirsize information is now recalculated if the size or filecount
3165 end up negative.
3166
316717. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3168 support for a long time. Removed HAVE_SYS_VFS_H.
3169
ea3a6f44 317018. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3171
317219. Allow an empty sender to be matched against a lookup in an address list.
3173 Previously the only cases considered were a regular expression, or an
3174 empty pattern.
3175
317620. Exim went into a mad DNS lookup loop when doing a callout where the
3177 host was specified on the transport, if the DNS lookup yielded more than
3178 one IP address.
3179
ea3a6f44
NM
318021. The RFC2047 encoding function was originally intended for short strings
3181 such as real names; it was not keeping to the 75-character limit for
3182 encoded words that the RFC imposes. It now respects the limit, and
3183 generates multiple encoded words if necessary. To be on the safe side, I
3184 have increased the buffer size for the ${rfc2047: expansion operator from
3185 1024 to 2048 bytes.
bbe902f0 3186
ea3a6f44
NM
318722. Failure to deliver a bounce message always caused it to be frozen, even if
3188 there was an errors_to setting on the router. The errors_to setting is now
3189 respected.
bbe902f0
PH
3190
319123. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3192 canonical form (fully expanded) before being placed in
3193 $sender_host_address.
3194
319524. Updated eximstats to version 1.33
3196
ea3a6f44
NM
319725. Include certificate and key file names in error message when GnuTLS fails
3198 to set them up, because the GnuTLS error message doesn't include the name
3199 of the failing file when there is a problem reading it.
bbe902f0
PH
3200
320126. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3202 As per change 25.
bbe902f0 3203
ea3a6f44
NM
320427. Reset the locale to "C" after calling embedded Perl, in case it was changed
3205 (this can affect the format of dates).
bbe902f0 3206
ea3a6f44
NM
320728. exim_tidydb, when checking for the continued existence of a message for
3208 which it has found a message-specific retry record, was not finding
3209 messages that were in split spool directories. Consequently, it was
3210 deleting retry records that should have stayed in existence.
bbe902f0
PH
3211
321229. eximstats updated to version 1.35
3213 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3214 1.35 - bugfix such that pie charts by volume are generated correctly
3215
ea3a6f44
NM
321630. The SPA authentication driver was not abandoning authentication and moving
3217 on to the next authenticator when an expansion was forced to fail,
3218 contradicting the general specification for all authenticators. Instead it
3219 was generating a temporary error. It now behaves as specified.
bbe902f0 3220
ea3a6f44
NM
322131. The default ordering of permitted cipher suites for GnuTLS was pessimal
3222 (the order specifies the preference for clients). The order is now AES256,
3223 AES128, 3DES, ARCFOUR128.
bbe902f0 3224
ea3a6f44
NM
322531. Small patch to Sieve code - explicitly set From: when generating an
3226 autoreply.
bbe902f0 3227
ea3a6f44
NM
322832. Exim crashed if a remote delivery caused a very long error message to be
3229 recorded - for instance if somebody sent an entire SpamAssassin report back
3230 as a large number of 550 error lines. This bug was coincidentally fixed by
3231 increasing the size of one of Exim's internal buffers (big_buffer) that
3232 happened as part of the Exiscan merge. However, to be on the safe side, I
3233 have made the code more robust (and fixed the comments that describe what
3234 is going on).
bbe902f0 3235
ea3a6f44
NM
323633. Some experimental protocols are using DNS PTR records for new purposes. The
3237 keys for these records are domain names, not reversed IP addresses. The
3238 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3239 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3240 CAN-2005-0021
3241
ea3a6f44
NM
324234. The host_aton() function is supposed to be passed a string that is known
3243 to be a valid IP address. However, in the case of IPv6 addresses, it was
3244 not checking this. This is a hostage to fortune. Exim now panics and dies
3245 if the condition is not met. A case was found where this could be provoked
3246 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3247 components; fortuitously, this particular loophole had already been fixed
3248 by change 4.50/55 or 4.44/33 above.
3249
3250 If there are any other similar loopholes, the new check in host_aton()
3251 itself should stop them being exploited. The report I received stated that
3252 data on the command line could provoke the exploit when Exim was running as
3253 exim, but did not say which command line option was involved. All I could
3254 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3255 running as the user.
bbe902f0
PH
3256 CAN-2005-0021
3257
ea3a6f44
NM
325835. There was a buffer overflow vulnerability in the SPA authentication code
3259 (which came originally from the Samba project). I have added a test to the
3260 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3261 CAN-2005-0022
3262
ea3a6f44
NM
326336. The daemon start-up calls getloadavg() while still root for those OS that
3264 need the first call to be done as root, but it missed one case: when
3265 deliver_queue_load_max is set with deliver_drop_privilege. This is
3266 necessary for the benefit of the queue runner, because there is no re-exec
3267 when deliver_drop_privilege is set.
bbe902f0 3268
ea3a6f44
NM
326937. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3270 was in use, was not putting the data itself into the right store pool;
3271 consequently, it could be overwritten for a subsequent message in the same
3272 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3273 the caching.)
bbe902f0 3274
ea3a6f44
NM
327538. Sometimes the final signoff response after QUIT could fail to get
3276 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3277 < 0 before doing a fflush(). This bug looks as though it goes back to the
3278 introduction of TLS in release 3.20, but "sometimes" must have been rare
3279 because the tests only now provoked it.
bbe902f0
PH
3280
3281
495ae4b0
PH
3282Exim version 4.43
3283-----------------
3284
3285 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3286 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3287 Now it returns an integer. A number of calls were still expecting a T/F
3288 return. Fortuitously, in all cases, the tests worked in OK situations,
3289 which is the norm. However, things would have gone wrong on any write
3290 failures on the smtp file descriptor. This function is used when sending
3291 messages over SMTP and also when doing verify callouts.
3292
3293 2. When Exim is called to do synchronous delivery of a locally submitted
3294 message (the -odf or -odi options), it no longer closes stderr before doing
3295 the delivery.
3296
3297 3. Implemented the mua_wrapper option.
3298
3299 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3300
3301 5. Implemented the functions header_remove(), header_testname(),
3302 header_add_at_position(), and receive_remove_recipient(), and exported them
3303 to local_scan().
3304
3305 6. If an ACL "warn" statement specified the addition of headers, Exim already
3306 inserted X-ACL-Warn: at the start if there was no header name. However, it
3307 was not making this test for the second and subsequent header lines if
3308 there were newlines in the string. This meant that an invalid header could
3309 be inserted if Exim was badly configured.
3310
3311 7. Allow an ACL "warn" statement to add header lines at the start or after all
3312 the Received: headers, as well as at the end.
3313
3314 8. Added the rcpt_4xx retry error code.
3315
3316 9. Added postmaster_mailfrom=xxx to callout verification option.
3317
331810. Added mailfrom=xxxx to the callout verification option, for verify=
3319 header_sender only.
3320
332111. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3322 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3323
332412. Inserted some casts to stop certain compilers warning when using pointer
3325 differences as field lengths or precisions in printf-type calls (mostly
3326 affecting debugging statements).
3327
332813. Added optional readline() support for -be (dynamically loaded).
3329
333014. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3331 same clock tick as a message's arrival, so that its received time was the
3332 same as the "first fail" time on the retry record, and that message
3333 remained on the queue past the ultimate address timeout, every queue runner
3334 would try a delivery (because it was past the ultimate address timeout) but
3335 after another failure, the ultimate address timeout, which should have then
3336 bounced the address, did not kick in. This was a "< instead of <=" error;
3337 in most cases the first failure would have been in the next clock tick
3338 after the received time, and all would be well.
3339
334015. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3341 being recognized when the domain list was tested by the match_domain
3342 condition in an expansion string.
3343
334416. Added the ${str2b64: operator.
3345
334617. Exim was always calling setrlimit() to set a large limit for the number of
3347 processes, without checking whether the existing limit was already
3348 adequate. (It did check for the limit on file descriptors.) Furthermore,
3349 errors from getrlimit() and setrlimit() were being ignored. Now they are
3350 logged to the main and panic logs, but Exim does carry on, to try to do its
3351 job under whatever limits there are.
3352
335318. Imported PCRE 5.0.
3354
335519. Trivial typo in log message " temporarily refused connection" (the leading
3356 space).
3357
335820. If the log selector return_path_on_delivery was set and an address was
3359 redirected to /dev/null, the delivery process crashed because it assumed
3360 that a return path would always be set for a "successful" delivery. In this
3361 case, the whole delivery is bypassed as an optimization, and therefore no
3362 return path is set.
3363
336421. Internal re-arrangement: the function for sending a challenge and reading
3365 a response while authentication was assuming a zero-terminated challenge
3366 string. It's now changed to take a pointer and a length, to allow for
3367 binary data in such strings.
3368
336922. Added the cyrus_sasl authenticator (code supplied by MBM).
3370
337123. Exim was not respecting finduser_retries when seeking the login of the
3372 uid under which it was called; it was always trying 10 times. (The default
3373 setting of finduser_retries is zero.) Also, it was sleeping after the final
3374 failure, which is pointless.
3375
337624. Implemented tls_on_connect_ports.
3377
337825. Implemented acl_smtp_predata.
3379
338026. If the domain in control=submission is set empty, Exim assumes that the
3381 authenticated id is a complete email address when it generates From: or
3382 Sender: header lines.
3383
338427. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3385 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3386 chown and chgrp in /bin and hostname in /usr/bin.
3387
338828. Exim was keeping the "process log" file open after each use, just as it
3389 does for the main log. This opens the possibility of it remaining open for
3390 long periods when the USR1 signal hits a daemon. Occasional processlog
3391 errors were reported, that could have been caused by this. Anyway, it seems
3392 much more sensible not to leave this file open at all, so that is what now
3393 happens.
3394
339529. The long-running daemon process does not normally write to the log once it
3396 has entered its main loop, and it closes the log before doing so. This is
3397 so that log files can straightforwardly be renamed and moved. However,
3398 there are a couple of unusual error situations where the daemon does write
3399 log entries, and I had neglected to close the log afterwards.
3400
340130. The text of an SMTP error response that was received during a remote
3402 delivery was being truncated at 512 bytes. This is too short for some of
3403 the long messages that one sometimes sees. I've increased the limit to
3404 1024.
3405
340631. It is now possible to make retry rules that apply only when a message has a
3407 specific sender, in particular, an empty sender.
3408
340932. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3410 it possible to be selective about when SMTP synchronization is enforced.
3411
341233. Added "control = caseful_local_part" and "control = "caselower_local_part".
3413
341432. Implemented hosts_connection_nolog.
3415
341633. Added an ACL for QUIT.
3417
341834. Setting "delay_warning=" to disable warnings was not working; it gave a
3419 syntax error.
3420
342135. Added mailbox_size and mailbox_filecount to appendfile.
3422
342336. Added control = no_multiline_responses to ACLs.
3424
342537. There was a bug in the logic of the code that waits for the clock to tick
3426 in the case where the clock went backwards by a substantial amount such
3427 that the microsecond fraction of "now" was more than the microsecond
3428 fraction of "then" (but the whole seconds number was less).
3429