Report compiler in -d -bV. Clang compat.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
5dc43717 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.632 2010/06/12 15:21:25 jetmore Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
aa097c4c
NM
6Exim version 4.75
7-----------------
8
4c9ef03a 9NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
10 Bugzilla 1073
11
7f3d9eff
TF
12TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
13 This fixes portability to compilers other than gcc, notably
14 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
15
159f52d2
TF
16TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
17 makefiles for portability to HP-UX and POSIX correctness.
18
0cc9542a
PP
19PP/01 Permit LOOKUP_foo enabling on the make command-line.
20 Also via indented variable definition in the Makefile.
21 (Debugging by Oliver Heesakkers).
22
f7274286
PP
23PP/02 Restore caching of spamd results with expanded spamd_address.
24 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
25
7b797365
PP
26PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
27 Improves build reliability. Fix from: Frank Elsner
28
caacae52
NM
29NM/02 Fix wide character breakage in the rfc2047 coding
30 Fixes bug 1064. Patch from Andrey N. Oktyabrski
31
09dcaba9
NM
32NM/03 Allow underscore in dnslist lookups
33 Fixes bug 1026. Patch from Graeme Fowler
34
bc19a55b
PP
35PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
36 Code patches from Adam Ciarcinski of NetBSD.
caacae52 37
bd4c9759
NM
38NM/04 Fixed exiqgrep to cope with mailq missing size issue
39 Fixes bug 943.
40
b72aab72
PP
41PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
42 is logged, to avoid truncation. Patch from John Horne.
43
2fe76745
PP
44PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
45 Patch from Jakob Hirsch.
46
76aa570c
PP
47PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
48 SQL string expansion failure details.
49 Patch from Andrey Oktyabrski.
50
f1e5fef5
PP
51PP/08 Bugzilla 486: implement %M datestamping in log filenames.
52 Patch from Simon Arlott.
53
4d805ee9
PP
54PP/09 New lookups functionality failed to compile on old gcc which rejects
55 extern declarations in function scope.
56 Patch from Oliver Fleischmann
57
cd59ab18
PP
58PP/10 Use sig_atomic_t for flags set from signal handlers.
59 Check getgroups() return and improve debugging.
60 Fixed developed for diagnosis in bug 927 (which turned out to be
61 a kernel bug).
62
332f5cf3
PP
63PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
64 Patch from Mark Zealey.
65
29cfeb94
PP
66PP/12 Bugzilla 1056: Improved spamd server selection.
67 Patch from Mark Zealey.
68
660242ad
PP
69PP/13 Bugzilla 1086: Deal with maildir quota file races.
70 Based on patch from Heiko Schlittermann.
71
bc4bc4c5
PP
72PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
73 Patch from Uwe Doering, sign-off by Michael Haardt.
74
2e64baa9
NM
75NM/05 Fix to spam.c to accommodate older gcc versions which dislike
76 variable declaration deep within a block. Bug and patch from
77 Dennis Davis.
78
bddd7526
PP
79PP/15 lookups-Makefile IRIX compatibilty coercion.
80
6bac1a9a
PP
81PP/16 Make DISABLE_DKIM build knob functional.
82
552193f0
NM
83NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
84 Patch by Simon Arlott
baeee2c1 85
1b587e48
TF
86TF/03 Fix valgrind.h portability to C89 compilers that do not support
87 variable argument macros. Our copy now differs from upstream.
88
aa097c4c 89
8c07b69f
TF
90Exim version 4.74
91-----------------
92
93TF/01 Failure to get a lock on a hints database can have serious
94 consequences so log it to the panic log.
95
c0ea85ab
TF
96TF/02 Log LMTP confirmation messages in the same way as SMTP,
97 controlled using the smtp_confirmation log selector.
98
0761d44e
TF
99TF/03 Include the error message when we fail to unlink a spool file.
100
0a349494
PP
101DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
102 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
103 for maintaining out-of-tree patches for some time.
104
105PP/01 Bugzilla 139: Documentation and portability issues.
106 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
107 Handle per-OS dynamic-module compilation flags.
108
fea24b2e
PP
109PP/02 Let /dev/null have normal permissions.
110 The 4.73 fixes were a little too stringent and complained about the
111 permissions on /dev/null. Exempt it from some checks.
112 Reported by Andreas M. Kirchwitz.
113
6545de78
PP
114PP/03 Report version information for many libraries, including
115 Exim version information for dynamically loaded libraries. Created
116 version.h, now support a version extension string for distributors
117 who patch heavily. Dynamic module ABI change.
118
1670ef10
PP
119PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
120 privilege escalation vulnerability whereby the Exim run-time user
121 can cause root to append content of the attacker's choosing to
122 arbitrary files.
123
c0886197
PP
124PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
125 (Wolfgang Breyha)
126
b7487bce
PP
127PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
128 If dropping privileges for untrusted macros, we disabled normal logging
129 on the basis that it would fail; for the Exim run-time user, this is not
130 the case, and it resulted in successful deliveries going unlogged.
131 Fixed. Reported by Andreas Metzler.
132
8c07b69f 133
97fd1e48 134Exim version 4.73
ed7f7860 135-----------------
97fd1e48
PP
136
137PP/01 Date: & Message-Id: revert to normally being appended to a message,
138 only prepend for the Resent-* case. Fixes regression introduced in
139 Exim 4.70 by NM/22 for Bugzilla 607.
140
6901c596
PP
141PP/02 Include check_rfc2047_length in configure.default because we're seeing
142 increasing numbers of administrators be bitten by this.
143
a8c8d6b5
JJ
144JJ/01 Added DISABLE_DKIM and comment to src/EDITME
145
77bb000f
PP
146PP/03 Bugzilla 994: added openssl_options main configuration option.
147
a29e5231
PP
148PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
149
ec5a0394 150PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 151
55c75993
PP
152PP/06 Adjust NTLM authentication to handle SASL Initial Response.
153
453a6645 154PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
155 without a peer certificate, leading to a segfault because of an
156 assumption that peers always have certificates. Be a little more
453a6645
PP
157 paranoid. Problem reported by Martin Tscholak.
158
8544e77a
PP
159PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
160 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
161 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
162 CL also introduces -bmalware, various -d+acl logging additions and
163 more caution in buffer sizes.
8544e77a 164
83e029d5
PP
165PP/09 Implemented reverse_ip expansion operator.
166
ed7f7860
PP
167PP/10 Bugzilla 937: provide a "debug" ACL control.
168
7d9f747b
PP
169PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
170
4b2241d2
PP
171PP/12 Bugzilla 973: Implement --version.
172
10385c15
PP
173PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
174
dbc4b90d
PP
175PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
176
532be449
PP
177PP/15 Bugzilla 816: support multiple condition rules on Routers.
178
6a8de854 179PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
180 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
181 ignore trailing whitespace.
6a8de854 182
5dc43717
JJ
183JJ/02 prevent non-panic DKIM error from being sent to paniclog
184
185JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
186 "exim" to be used
55c75993 187
3346ab01
PP
188PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
189 Notification from Dr Andrew Aitchison.
190
491fab4c
PP
191PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
192 ExtendedDetectionInfo response format.
193 Notification from John Horne.
194
13eb9497
PP
195PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
196 compatible.
197
198PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
199 XSL and documented dependency on system catalogs, with examples of how
200 it normally works.
201
7f36d675
DW
202DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
203 access.
204
c1d94452
DW
205DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
206 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
207 configuration file which is writeable by the Exim user or group.
208
e2f5dc15
DW
209DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
210 of configuration files to cover files specified with the -C option if
211 they are going to be used with root privileges, not just the default
212 configuration file.
213
cd25e41d
DW
214DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
215 option (effectively making it always true).
216
261dc43e
DW
217DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
218 files to be used while preserving root privileges.
219
fa32850b
DW
220DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
221 that rogue child processes cannot use them.
222
79d4bc3d
PP
223PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
224 run-time user, instead of root.
225
2cfd3221
PP
226PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
227 Exim run-time user without dropping privileges.
228
fb08281f
DW
229DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
230 result string, instead of calling string_vformat() twice with the same
231 arguments.
3346ab01 232
74935b98
DW
233DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
234 for other users. Others should always drop root privileges if they use
235 -C on the command line, even for a whitelisted configure file.
236
90b6341f
DW
237DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
238
57730b52
ML
239NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
240
66581d1e 241
465e92cf
JJ
242Exim version 4.72
243-----------------
244
453a6645
PP
245JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
246 $data_path, and $header_path variables; fixed documentation bugs and
247 typos
465e92cf 248
453a6645
PP
249JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
250 exipick to access non-standard spools, including the "frozen" queue
251 (Finput)
edae0343 252
9bd3e22c
NM
253NM/01 Bugzilla 965: Support mysql stored procedures.
254 Patch from Alain Williams
255
bb576ff7
NM
256NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
257
5a1a5845
NM
258NM/03 Bugzilla 955: Documentation fix for max_rcpts.
259 Patch from Andreas Metzler
260
981a9fad
NM
261NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
262 Patch from Kirill Miazine
263
7fc497ee
NM
264NM/05 Bugzilla 671: Added umask to procmail example.
265
1a41defa
JJ
266JJ/03 installed exipick 20100323.0, fixing doc bug
267
a466095c 268NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 269 directory. Notification and patch from Dan Rosenberg.
a466095c 270
94a6bd0b
NM
271TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
272
273TK/02 Improve log output when DKIM signing operation fails.
274
275MH/01 Treat the transport option dkim_domain as a colon separated
276 list, not as a single string, and sign the message with each element,
277 omitting multiple occurences of the same signer.
278
c1b141a8
NM
279NM/07 Null terminate DKIM strings, Null initialise DKIM variable
280 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 281
b26eacf1 282NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
283 Patch by Simon Arlott
284
179c5980 285PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 286 MBX locking. Notification from Dan Rosenberg.
179c5980 287
9bd3e22c 288
7c6d71af
NM
289Exim version 4.71
290-----------------
291
7d9f747b 292TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 293
f013fb92
NM
294NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
295
0eb8eedd
NM
296NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
297
663ee6d9
NM
298NM/03 Bugzilla 847: Enable DNSDB lookup by default.
299
177ebd9b
NM
300NM/04 Bugzilla 915: Flag broken perl installation during build.
301
7c6d71af 302
210f147e
NM
303Exim version 4.70
304-----------------
305
cdd3bb85 306TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 307 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
308
309TK/02 Write list of recipients to X-Envelope-Sender header when building
310 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 311 Hirsch).
cdd3bb85
TK
312
313TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
314 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 315 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
316
317TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
318 by Mark Daniel Reidel <mr@df.eu>.
319
210f147e
NM
320NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
321 When building exim an external PCRE library is now needed -
322 PCRE is a system library on the majority of modern systems.
323 See entry on PCRE_LIBS in EDITME file.
324
deafd5b3
NM
325NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
326 conversation. Added nologin parameter to request.
7d9f747b 327 Patch contributed by Kirill Miazine.
deafd5b3 328
089793a4
TF
329TF/01 Do not log submission mode rewrites if they do not change the address.
330
5f16ca82
TF
331TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
332
dae9d94e 333NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 334 log files in place. Contributed by Roberto Lima.
dae9d94e 335
7d9f747b 336NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 337
06864c44
TF
338TF/03 Bugzilla 615: When checking the local_parts router precondition
339 after a local_part_suffix or local_part_prefix option, Exim now
340 does not use the address's named list lookup cache, since this
341 contains cached lookups for the whole local part.
342
65a7d8c3 343NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 344 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 345
23510047 346TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 347
7d9f747b 348NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 349
7d8eec3a 350NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 351 Patch provided by Jan Srzednicki.
6c588e74 352
89dec7b6
TF
353TF/05 Leading white space used to be stripped from $spam_report which
354 wrecked the formatting. Now it is preserved.
5f28a6e8 355
a99de90c
TF
356TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
357 that they are available at delivery time.
358
e2803e40
TF
359TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
360
7199e1ee
TF
361TF/08 TLS error reporting now respects the incoming_interface and
362 incoming_port log selectors.
363
e276e04b
TF
364TF/09 Produce a more useful error message if an SMTP transport's hosts
365 setting expands to an empty string.
366
ce552449 367NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 368 Patch provided by Phil Pennock.
ce552449 369
e765a0f1 370NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 371 Patch provided by Richard Godbee.
e765a0f1 372
4f054c63 373NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 374 acl_smtp_notquit, added index entry.
4f054c63 375
7d9f747b
PP
376NM/09 Bugzilla 787: Potential buffer overflow in string_format.
377 Patch provided by Eugene Bujak.
24c929a2 378
7d9f747b
PP
379NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
380 accept(). Patch provided by Maxim Dounin.
cf73943b 381
b52bc06e 382NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 383 Patch provided by Phil Pennock.
b52bc06e 384
447de4b0
NM
385NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
386
4c69d561 387NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 388 Patch provided by Brad "anomie" Jorsch.
4c69d561 389
d5c39246 390NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 391 Patch provided by Dean Brooks.
9b989985 392
0b23848a
TK
393TK/05 Add native DKIM support (does not depend on external libraries).
394
8f3414a1 395NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 396 Patch provided by Graeme Fowler.
e2aacdfd 397
fb6f955d
NM
398NM/16 Bugzilla 851: Documentation example syntax fix.
399
400NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 401
7d9f747b
PP
402NM/18 Bugzilla 894: Fix issue with very long lines including comments in
403 lsearch.
dbb0bf41 404
7d9f747b
PP
405NM/19 Bugzilla 745: TLS version reporting.
406 Patch provided by Phil Pennock.
f3766eb5 407
7d9f747b
PP
408NM/20 Bugzilla 167: bool: condition support.
409 Patch provided by Phil Pennock.
36f12725 410
7d9f747b
PP
411NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
412 clients. Patch provided by Phil Pennock.
e6060e2c 413
7d9f747b
PP
414NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
415 Patch provided by Brad "anomie" Jorsch.
5eb690a1 416
7d9f747b
PP
417NM/23 Bugzilla 687: Fix misparses in eximstats.
418 Patch provided by Heiko Schlittermann.
d5c13d66 419
7d9f747b
PP
420NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
421 Patch provided by Heiko Schlittermann.
b2335c0b 422
7d9f747b 423NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 424 plus update to original patch.
f4cd9433 425
7d9f747b 426NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 427
7d9f747b
PP
428NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
429 Patch provided by David Brownlee.
8dc71ab3 430
7d9f747b 431NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 432
7d9f747b 433NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 434
7d9f747b 435NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 436
7d9f747b 437NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 438
17792b53 439NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 440 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 441
7d9f747b
PP
442NM/33 Bugzilla 898: Transport filter timeout fix.
443 Patch by Todd Rinaldo.
52383f8f 444
7d9f747b
PP
445NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
446 Patch by Serge Demonchaux.
5ca6d115 447
7d9f747b
PP
448NM/35 Bugzilla 39: Base64 decode bug fixes.
449 Patch by Jakob Hirsch.
baee9eee 450
7d9f747b 451NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 452
7d9f747b 453NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 454
7d9f747b 455NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 456
7d9f747b 457NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 458
deafd5b3 459
47db1125
NM
460Exim version 4.69
461-----------------
462
4b3504d0
TK
463TK/01 Add preliminary DKIM support. Currently requires a forked version of
464 ALT-N's libdkim that I have put here:
465 http://duncanthrax.net/exim-experimental/
466
467 Note to Michael Haardt: I had to rename some vars in sieve.c. They
468 were called 'true' and it seems that C99 defines that as a reserved
469 keyword to be used with 'bool' variable types. That means you could
470 not include C99-style headers which use bools without triggering
471 build errors in sieve.c.
472
81ea09ca
NM
473NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
474 as mailq or other aliases. Changed the --help handling significantly
475 to do whats expected. exim_usage() emits usage/help information.
476
f13cddcb
SC
477SC/01 Added the -bylocaldomain option to eximstats.
478
7d9f747b 479NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 480
7d9f747b 481NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 482
7d9f747b 483NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
484
485
eb4c0de6
PH
486Exim version 4.68
487-----------------
488
489PH/01 Another patch from the Sieve maintainer.
490
6a3bceb1
PH
491PH/02 When an IPv6 address is converted to a string for single-key lookup
492 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
493 dots are used instead of colons so that keys in lsearch files need not
494 contain colons. This was done some time before quoting was made available
495 in lsearch files. However, iplsearch files do require colons in IPv6 keys
496 (notated using the quote facility) so as to distinguish them from IPv4
497 keys. This meant that lookups for IP addresses in host lists did not work
498 for iplsearch lookups.
499
500 This has been fixed by arranging for IPv6 addresses to be expressed with
501 colons if the lookup type is iplsearch. This is not incompatible, because
502 previously such lookups could never work.
503
504 The situation is now rather anomolous, since one *can* have colons in
505 ordinary lsearch keys. However, making the change in all cases is
506 incompatible and would probably break a number of configurations.
507
2e30fa9d
TK
508TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
509 version.
510
0806a9c5
MH
511MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
512 conversion specification without a maximum field width, thereby enabling
513 a rogue spamd server to cause a buffer overflow. While nobody in their
514 right mind would setup Exim to query an untrusted spamd server, an
515 attacker that gains access to a server running spamd could potentially
516 exploit this vulnerability to run arbitrary code as the Exim user.
517
ae276964
TK
518TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
519 $primary_hostname instead of what libspf2 thinks the hosts name is.
520
0f2cbd1b
MH
521MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
522 a directory entry by the name of the lookup key. Previously, if a
523 symlink pointed to a non-existing file or a file in a directory that
524 Exim lacked permissions to read, a lookup for a key matching that
525 symlink would fail. Now it is enough that a matching directory entry
526 exists, symlink or not. (Bugzilla 503.)
527
2b85bce7
PH
528PH/03 The body_linecount and body_zerocount variables are now exported in the
529 local_scan API.
530
93655c46
PH
531PH/04 Added the $dnslist_matched variable.
532
6c512171
PH
533PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
534 This means they are set thereafter only if the connection becomes
535 encrypted.
536
537PH/06 Added the client_condition to authenticators so that some can be skipped
538 by clients under certain conditions.
539
aa6dc513
PH
540PH/07 The error message for a badly-placed control=no_multiline_responses left
541 "_responses" off the end of the name.
542
a96603a0
PH
543PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
544
8f240103
PH
545PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
546 (without spaces) instead of just copying the configuration text.
547
548PH/10 Added the /noupdate option to the ratelimit ACL condition.
549
d677b2f2
PH
550PH/11 Added $max_received_linelength.
551
d52120f2
PH
552PH/12 Added +ignore_defer and +include_defer to host lists.
553
64f2600a
PH
554PH/13 Installed PCRE version 7.2. This needed some changes because of the new
555 way in which PCRE > 7.0 is built.
556
8669f003
PH
557PH/14 Implemented queue_only_load_latch.
558
a4dc33a8
PH
559PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
560 MAIL command. The effect was to mangle the value on 64-bit systems.
561
d6a60c0f
PH
562PH/16 Another patch from the Sieve maintainer.
563
8f128379
PH
564PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
565
8932dffe
PH
566PH/18 If a system quota error occurred while trying to create the file for
567 a maildir delivery, the message "Mailbox is full" was not appended to the
568 bounce if the delivery eventually timed out. Change 4.67/27 below applied
569 only to a quota excession during the actual writing of the file.
d6a60c0f 570
ddea74fa 571PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
572 characters?) which causes problems in log lines. The DN values are now
573 passed through string_printing() before being added to log lines.
574
ddea74fa 575PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
576 and InterBase are left for another time.)
577
ddea74fa
PH
578PH/21 Added message_body_newlines option.
579
ce9f225c
PH
580PH/22 Guard against possible overflow in moan_check_errorcopy().
581
19897d52
PH
582PH/23 POSIX allows open() to be a macro; guard against that.
583
bc64a74d
PH
584PH/24 If the recipient of an error message contained an @ in the local part
585 (suitably quoted, of course), incorrect values were put in $domain and
586 $local_part during the evaluation of errors_copy.
587
eb4c0de6 588
b4ed4da0
PH
589Exim version 4.67
590-----------------
591
22ad45c9
MH
592MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
593 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
594 Jan Srzednicki.
595
b4ed4da0
PH
596PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
597 issue a MAIL command.
598
431b7361
PH
599PH/02 In an ACL statement such as
600
601 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
602
603 if a client was not listed at all, or was listed with a value other than
604 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
605 the condition was not true (as it should be), so access was not denied.
606 The bug was that the ! inversion was incorrectly passed on to the second
607 item. This has been fixed.
608
609PH/03 Added additional dnslists conditions == and =& which are different from
610 = and & when the dns lookup returns more than one IP address.
611
83da1223
PH
612PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
613 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
614
54fc8428
PH
615PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
616 FSYNC, which compiles an option called disable_fsync that allows for
617 bypassing fsync(). The documentation is heavily laced with warnings.
618
34c5e8dd
SC
619SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
620
bbe15da8
PH
621PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
622 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
623 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
624 including adding "make clean"; (3) Added -fPIC when compiling the test
625 dynamically loaded module, to get rid of a warning.
626
0e8a9471
MH
627MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
628 message fails, move_frozen_messages = true and ignore_bounce_errors_after
629 = 0s. The bug is otherwise harmless.
630
f0872424
PH
631PH/07 There was a bug in the dovecot authenticator such that the value of
632 $auth1 could be overwritten, and so not correctly preserved, after a
633 successful authentication. This usually meant that the value preserved by
634 the server_setid option was incorrect.
635
b01dd148
PH
636PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
637
6bf342e1
PH
638PH/09 Installed PCRE release 7.0.
639
273f34d0
PH
640PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
641 run for batched SMTP input. It is now run at the start of every message
642 in the batch. While fixing this I discovered that the process information
643 (output by running exiwhat) was not always getting set for -bs and -bS
644 input. This is fixed, and it now also says "batched" for BSMTP.
645
cf8b11a5
PH
646PH/11 Added control=no_pipelining.
647
41c7c167
PH
648PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
649 patch, slightly modified), and move the expansion of helo_data till after
650 the connection is made in the smtp transport (so it can use these
651 values).
652
9c57cbc0
PH
653PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
654
f3f065bb
PH
655PH/14 Added log_selector = +pid.
656
047bdd8c
PH
657PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
658
0ce9abe6
PH
659PH/16 Add ${if forany and ${if forall.
660
0e22dfd1
PH
661PH/17 Added dsn_from option to vary the From: line in DSNs.
662
4c590bd1
PH
663PH/18 Flush SMTP output before performing a callout, unless control =
664 no_callout_flush is set.
665
09945f1e
PH
666PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
667 was true (the default) a successful delivery failed to delete the retry
668 item, thus causing premature timeout of the address. The bug is now
669 fixed.
670
c51b8e75
PH
671PH/20 Added hosts_avoid_pipelining to the smtp transport.
672
e28326d8
PH
673PH/21 Long custom messages for fakedefer and fakereject are now split up
674 into multiline reponses in the same way that messages for "deny" and
675 other ACL rejections are.
676
75b1493f
PH
677PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
678 with slight modification.
679
7c5214ec
PH
680PH/23 Applied sieve patches from the maintainer "tracking the latest notify
681 draft, changing the syntax and factoring some duplicate code".
682
4311097e
PH
683PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
684 for deliveries of the second and subsequent messages over the same SMTP
685 connection.
686
29f89cad
PH
687PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
688 ${reduce, with only minor "tidies".
689
5e687460
SC
690SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
691
c3611384
PH
692PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
693 expansion side effects.
694
5a11a7b4
PH
695PH/27 When a message times out after an over-quota error from an Exim-imposed
696 quota, the bounce message says "mailbox is full". This message was not
697 being given when it was a system quota that was exceeded. It now should
698 be the same.
699
0e20aff9
MH
700MH/03 Made $recipients available in local_scan(). local_scan() already has
701 better access to the recipient list through recipients_list[], but
702 $recipients can be useful in postmaster-provided expansion strings.
703
ca86f471
PH
704PH/28 The $smtp_command and $smtp_command_argument variables were not correct
705 in the case of a MAIL command with additional options following the
706 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
707 were accidentally chopped off.
708
a14e5636
PH
709PH/29 SMTP synchronization checks are implemented when a command is read -
710 there is a check that no more input is waiting when there shouldn't be
711 any. However, for some commands, a delay in an ACL can mean that it is
712 some time before the response is written. In this time, more input might
713 arrive, invalidly. So now there are extra checks after an ACL has run for
714 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
715 pipelining has not been advertised.
716
ec95d1a6
PH
717PH/30 MH's patch to allow iscntrl() characters to be list separators.
718
42855d71
PH
719PH/31 Unlike :fail:, a custom message specified with :defer: was not being
720 returned in the SMTP response when smtp_return_error_details was false.
721 This has been fixed.
722
57c2c631
PH
723PH/32 Change the Dovecot authenticator to use read() and write() on the socket
724 instead of the C I/O that was originally supplied, because problems were
725 reported on Solaris.
726
58c01c94
PH
727PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
728 Exim which did not show up earlier: it was assuming that a call to
729 SSL_CTX_set_info_callback() might give an error value. In fact, there is
730 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
731 was a macro that became an assignment, so it seemed to work. This has
732 changed to a proper function call with a void return, hence the compile
733 error. Exim's code has been fixed.
734
dee5a20a
PH
735PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
736 cpus.
737
d2ee6114
PH
738PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
739
b2d5182b
PH
740PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
741
79749a79
PH
742PH/37 If a message is not accepted after it has had an id assigned (e.g.
743 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
744 "Completed" line in the log. When some messages of this type were
745 selected by exigrep, they were listed as "not completed". Others were
746 picked up by some special patterns. I have improved the selection
747 criteria to be more general.
79749a79 748
c456d9bb
PH
749PH/38 The host_find_failed option in the manualroute router can now be set
750 to "ignore", to completely ignore a host whose IP address cannot be
751 found. If all hosts are ignored, the behaviour is controlled by the new
752 host_all_ignored option.
753
cd9868ec
PH
754PH/39 In a list of hosts for manualroute, if one item (either because of multi-
755 homing or because of multiple MX records with /mx) generated more than
756 one IP address, and the following item turned out to be the local host,
757 all the secondary addresses of the first item were incorrectly removed
758 from the list, along with the local host and any following hosts (which
759 is what is supposed to happen).
760
ebeaf996
PH
761PH/40 When Exim receives a message, it writes the login name, uid, and gid of
762 whoever called Exim into the -H file. In the case of the daemon it was
763 behaving confusingly. When first started, it used values for whoever
764 started the daemon, but after a SIGHUP it used the Exim user (because it
765 calls itself on a restart). I have changed the code so that it now always
766 uses the Exim user.
767
2679d413
PH
768PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
769 message are rejected with the same error (e.g. no authentication or bad
770 sender address), and a DATA command is nevertheless sent (as can happen
771 with PIPELINING or a stupid MUA), the error message that was given to the
772 RCPT commands is included in the rejection of the DATA command. This is
773 intended to be helpful for MUAs that show only the final error to their
774 users.
775
84024b72
PH
776PH/42 Another patch from the Sieve maintainer.
777
8005d38e
SC
778SC/02 Eximstats - Differentiate between permanent and temporary rejects.
779 Eximstats - Fixed some broken HTML links and added missing column headers
780 (Jez Hancock).
781 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
782 columns for Rejects, Temp Rejects, Ham, and Spam rows.
783
3298c6c6
SC
784SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
785
a43a27c5
PH
786PH/43 Yet another patch from the Sieve maintainer.
787
58eb016e 788PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
789 the response to the final '.' that terminates a message, but only in the
790 case where the client has not sent further data following the '.'
791 (unfortunately, this is allowed). However, in many cases there won't be
792 any further data because there won't be any more messages to send. A call
793 to select() can be used: if it shows that the input is "ready", there is
794 either input waiting, or the socket has been closed. An attempt to read
795 the next input character can distinguish the two cases. Previously, Exim
58eb016e 796 would have sent an OK response which the client would never have see.
563b63fa
PH
797 This could lead to message repetition. This fix should cure that, at
798 least in a lot of common cases.
58eb016e 799
b43a74ea
PH
800PH/45 Do not advertise STARTTLS in response to HELP unless it would be
801 advertised in response to EHLO.
802
b4ed4da0 803
5dd1517f
PH
804Exim version 4.66
805-----------------
806
807PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
808 fixed by 4.65/MH/01 (is this a record?) are fixed:
809
810 (i) An empty string was always treated as zero by the numeric comparison
811 operators. This behaviour has been restored.
812
813 (ii) It is documented that the numeric comparison operators always treat
814 their arguments as decimal numbers. This was broken in that numbers
815 starting with 0 were being interpreted as octal.
816
817 While fixing these problems I realized that there was another issue that
818 hadn't been noticed. Values of message_size_limit (both the global option
819 and the transport option) were treated as octal if they started with 0.
820 The documentation was vague. These values are now always treated as
821 decimal, and I will make that clear in the documentation.
822
823
93cfa765
TK
824Exim version 4.65
825-----------------
826
827TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
828 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
829 versions. (#438)
830
d6066548
MH
831MH/01 Don't check that the operands of numeric comparison operators are
832 integers when their expansion is in "skipping" mode (fixes bug
833 introduced by 4.64-PH/07).
834
4362ff0d
PH
835PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
836 child addresses, Exim now panics and dies. Previously, because the count
837 is held in a short int, deliveries were likely to be lost. As such a
838 large number of recipients for a single message is ridiculous
839 (performance will be very, very poor), I have chosen to impose a limit
840 rather than extend the field.
841
93cfa765 842
944e9e9c
TF
843Exim version 4.64
844-----------------
aa41d2de 845
21d74bd9
TK
846TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
847 leftover -K file (the existence of which was triggered by #402).
848 While we were at it, introduced process PID as part of the -K
849 filename. This should rule out race conditions when creating
850 these files.
851
852TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
853 processing considerably. Previous code took too long for large mails,
854 triggering a timeout which in turn triggers #401.
855
856TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
857 in the DK code in transports.c. sendfile() is not really portable,
858 hence the _LINUX specificness.
944e9e9c
TF
859
860TF/01 In the add_headers option to the mail command in an Exim filter,
861 there was a bug that Exim would claim a syntax error in any
862 header after the first one which had an odd number of characters
863 in the field name.
864
2b1c6e3a
PH
865PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
866 callout verification, Exim cached a "reject" for the entire domain. This
867 is correct for most verifications, but it is not correct for a recipient
868 verification with use_sender or use_postmaster set, because in that case
869 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
870 case of MAIL FROM:<> rejection from other early rejections (e.g.
871 rejection of HELO). When verifying a recipient using a non-null MAIL
872 address, the cache is ignored if it shows MAIL FROM:<> rejection.
873 Whatever the result of the callout, the value of the domain cache is
874 left unchanged (for any other kind of callout, getting as far as trying
875 RCPT means that the domain itself is ok).
876
1f872c80
PH
877PH/02 Tidied a number of unused variable and signed/unsigned warnings that
878 gcc 4.1.1 threw up.
879
880PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
881 manifest itself as EPIPE rather than ECONNECT. When tidying away a
882 session, the daemon ignores ECONNECT errors and logs others; it now
883 ignores EPIPE as well.
884
d203e649
PH
885PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
886 (quoted-printable decoding).
887
cc2ed8f7 888PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 889 later the small subsequent patch to fix an introduced bug.
f951fd57 890
ddfcd446
PH
891PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
892
d45b1de8
PH
893PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
894
895PH/08 An error is now given if message_size_limit is specified negative.
896
38a0a95f 897PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 898 to be given (somewhat) arbitrary names.
38a0a95f 899
a2405d83
JJ
900JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
901 in 4.64-PH/09.
902
903JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
904 miscellaneous code fixes
905
6ea85e9a
PH
906PH/10 Added the log_reject_target ACL modifier to specify where to log
907 rejections.
908
26da7e20
PH
909PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
910 hostname. This is wrong, because it relates to the incoming message (and
911 probably the interface on which it is arriving) and not to the outgoing
912 callout (which could be using a different interface). This has been
913 changed to use the value of the helo_data option from the smtp transport
914 instead - this is what is used when a message is actually being sent. If
915 there is no remote transport (possible with a router that sets up host
916 addresses), $smtp_active_hostname is used.
6ea85e9a 917
14aa5a05 918PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 919 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
920 (a) The code assumed that strncpy() returns a negative number on buffer
921 overflow, which isn't the case. Replaced with Exim's string_format()
922 function.
923 (b) There were several signed/unsigned issues. I just did the minimum
924 hacking in of casts. There is scope for a larger refactoring.
925 (c) The code used strcasecmp() which is not a standard C function.
926 Replaced with Exim's strcmpic() function.
927 (d) The code set only $1; it now sets $auth1 as well.
928 (e) A simple test gave the error "authentication client didn't specify
929 service in request". It would seem that Dovecot has changed its
930 interface. Fortunately there's a specification; I followed it and
931 changed what the client sends and it appears to be working now.
932
ff75a1f7
PH
933PH/13 Added $message_headers_raw to provide the headers without RFC 2047
934 decoding.
935
e6f6568e
PH
936PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
937 address A is aliased to B and C, where B exists and C does not. Without
938 -v the output is "A verified" because verification stops after a
939 successful redirection if more than one address is generated. However,
940 with -v the child addresses are also verified. Exim was outputting "A
941 failed to verify" and then showing the successful verification for C,
942 with its parentage. It now outputs "B failed to verify", showing B's
943 parentage before showing the successful verification of C.
944
d6f6e0dc
PH
945PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
946 look up a TXT record in a specific list after matching in a combined
947 list.
948
322050c2
PH
949PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
950 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
951 they consult the DNS. I had assumed they would set it the way they
952 wanted; and indeed my experiments on Linux seem to show that in some
953 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
954 To be on the safe side, however, I have now made the interface to
955 host_find_byname() similar to host_find_bydns(), with an argument
956 containing the DNS resolver options. The host_find_byname() function now
957 sets these options at its start, just as host_find_bydns() does. The smtp
958 transport options dns_qualify_single and dns_search_parents are passed to
959 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
960 of host_find_byname() use the default settings of RES_DEFNAMES
961 (qualify_single) but not RES_DNSRCH (search_parents).
962
08955dd3
PH
963PH/17 Applied (a modified version of) Nico Erfurth's patch to make
964 spool_read_header() do less string testing, by means of a preliminary
965 switch on the second character of optional "-foo" lines. (This is
966 overdue, caused by the large number of possibilities that now exist.
967 Originally there were few.) While I was there, I also converted the
968 str(n)cmp tests so they don't re-test the leading "-" and the first
969 character, in the hope this might squeeze out yet more improvement.
970
1eccaa59
PH
971PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
972 flag allowing group syntax was set by the header_syntax check but not
973 turned off, possible causing trouble later; (2) The flag was not being
974 set at all for the header_verify test, causing "group"-style headers to
975 be rejected. I have now set it in this case, and also caused header_
976 verify to ignore an empty address taken from a group. While doing this, I
977 came across some other cases where the code for allowing group syntax
978 while scanning a header line wasn't quite right (mostly, not resetting
979 the flag correctly in the right place). These bugs could have caused
980 trouble for malformed header lines. I hope it is now all correct.
981
602e59e5
PH
982PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
983 with the "reply" argument non-NULL. The code, however (which originally
984 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
985 but it didn't always do it. This confused somebody who was copying the
986 code for some other use. I have removed all the tests.
987
411ef850
PH
988PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
989 feature that was used to support insecure browsers during the U.S. crypto
990 embargo. It requires special client support, and Exim is probably the
991 only MTA that supported it -- and would never use it because real RSA is
992 always available. This code has been removed, because it had the bad
993 effect of slowing Exim down by computing (never used) parameters for the
994 RSA_EXPORT functionality.
995
7befa435
PH
996PH/21 On the advice of Timo Sirainen, added a check to the dovecot
997 authenticator to fail if there's a tab character in the incoming data
998 (there should never be unless someone is messing about, as it's supposed
999 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1000 if the connection is using TLS or if the remote IP is the same as the
1001 local IP, and the "valid-client-cert option" if a client certificate has
1002 been verified.
1003
48da4259 1004PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1005 authenticators. This can be used for authorization after authentication
1006 succeeds. (In the case of plaintext, it servers for both authentication
1007 and authorization.)
1008
48da4259
PH
1009PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1010 if any retry times were supplied.
1011
d1d5595c
PH
1012PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1013 connection, where there is no client IP address to check. In this
1014 situation, the verify now always succeeds.
1015
0ef732d9
PH
1016PH/25 Applied John Jetmore's -Mset patch.
1017
328895cc
PH
1018PH/26 Added -bem to be like -Mset, but loading a message from a file.
1019
fd700877
PH
1020PH/27 In a string expansion for a processed (not raw) header when multiple
1021 headers of the same name were present, leading whitespace was being
1022 removed from all of them, but trailing whitespace was being removed only
1023 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1024 before concatenation. Completely empty headers in a concatenation (as
1025 before) are ignored.
fd700877 1026
8dce1a6f
PH
1027PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1028 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1029
17af4a17
PH
1030PH/29 [Removed. This was a change that I later backed out, and forgot to
1031 correct the ChangeLog entry (that I had efficiently created) before
1032 committing the later change.]
f6c332bd
PH
1033
1034PH/30 Exim was sometimes attempting to deliver messages that had suffered
1035 address errors (4xx response to RCPT) over the same connection as other
1036 messages routed to the same hosts. Such deliveries are always "forced",
1037 so retry times are not inspected. This resulted in far too many retries
1038 for the affected addresses. The effect occurred only when there were more
1039 hosts than the hosts_max_try setting in the smtp transport when it had
1040 the 4xx errors. Those hosts that it had tried were not added to the list
1041 of hosts for which the message was waiting, so if all were tried, there
1042 was no problem. Two fixes have been applied:
1043
1044 (i) If there are any address or message errors in an SMTP delivery, none
1045 of the hosts (tried or untried) are now added to the list of hosts
1046 for which the message is waiting, so the message should not be a
1047 candidate for sending over the same connection that was used for a
1048 successful delivery of some other message. This seems entirely
1049 reasonable: after all the message is NOT "waiting for some host".
1050 This is so "obvious" that I'm not sure why it wasn't done
1051 previously. Hope I haven't missed anything, but it can't do any
1052 harm, as the worst effect is to miss an optimization.
1053
1054 (ii) If, despite (i), such a delivery is accidentally attempted, the
1055 routing retry time is respected, so at least it doesn't keep
1056 hammering the server.
1057
c1114884
PH
1058PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1059 in ${readsocket because some servers need this prod.
1060
7a0743eb
PH
1061PH/32 Added some extra debug output when updating a wait-xxx database.
1062
0d85fa3f
PH
1063PH/33 The hint "could be header name not terminated by colon", which has been
1064 given for certain expansion errors for a long time, was not being given
1065 for the ${if def:h_colon_omitted{... case.
1066
1bf43b78
PH
1067PH/34 The spec says: "With one important exception, whenever a domain list is
1068 being scanned, $domain contains the subject domain." There was at least
1069 one case where this was not true.
1070
520de300
PH
1071PH/35 The error "getsockname() failed: connection reset by peer" was being
1072 written to the panic log as well as the main log, but it isn't really
1073 panic-worthy as it just means the connection died rather early on. I have
1074 removed the panic log writing for the ECONNRESET error when getsockname()
1075 fails.
1076
48c7f9e2
PH
1077PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1078 runs only) independently of the message's sender address. This meant
1079 that, if the 4xx error was in fact related to the sender, a different
1080 message to the same recipient with a different sender could confuse
1081 things. In particualar, this can happen when sending to a greylisting
1082 server, but other circumstances could also provoke similar problems.
1083 I have changed the default so that the retry time for these errors is now
1084 based a combination of the sender and recipient addresses. This change
1085 can be overridden by setting address_retry_include_sender=false in the
1086 smtp transport.
1087
99ea1c86
PH
1088PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1089 remote server are returned as part of bounce messages. This was not
1090 happening for LMTP over a pipe (the lmtp transport), but now it is the
1091 same for both kinds of LMTP.
1092
a2042e78
PH
1093PH/38 Despite being documented as not happening, Exim was rewriting addresses
1094 in header lines that were in fact CNAMEs. This is no longer the case.
1095
4fbcfc2e
PH
1096PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1097 and queue runs started by the daemon processed all messages. This has
1098 been fixed so that -R and -S can now usefully be given with -q<time>.
1099
aa41d2de
PH
1100PH/40 Import PCRE release 6.7 (fixes some bugs).
1101
af561417
PH
1102PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1103
3cc66b45
PH
1104PH/42 Give an error if -q is specified more than once.
1105
194cc0e4
PH
1106PH/43 Renamed the variables $interface_address and $interface_port as
1107 $received_ip_address and $received_port, to make it clear that these
1108 values apply to message reception, and not to the outgoing interface when
1109 a message is delivered. (The old names remain recognized, of course.)
1110
a401ddaa
PH
1111PH/44 There was no timeout on the connect() call when using a Unix domain
1112 socket in the ${readsocket expansion. There now is.
1113
4e88a19f
PH
1114PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1115 be meaningful with "accept".
1116
d7d7b289
SC
1117SC/01 Eximstats V1.43
1118 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1119
1120SC/02 Eximstats V1.44
1121 Use a glob alias rather than an array ref in the generated
1122 parser. This improves both readability and performance.
1123
1124SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1125 Collect SpamAssassin and rejection statistics.
1126 Don't display local sender or destination tables unless
1127 there is data to show.
1128 Added average volumes into the top table text output.
1129
1130SC/04 Eximstats V1.46
1131 Collect data on the number of addresses (recipients)
1132 as well as the number of messages.
1133
1134SC/05 Eximstats V1.47
1135 Added 'Message too big' to the list of mail rejection
1136 reasons (thanks to Marco Gaiarin).
1137
1138SC/06 Eximstats V1.48
1139 Mainlog lines which have GMT offsets and are too short to
1140 have a flag are now skipped.
1141
1142SC/07 Eximstats V1.49 (Alain Williams)
1143 Added the -emptyok flag.
1144
1145SC/08 Eximstats V1.50
1146 Fixes for obtaining the IP address from reject messages.
1147
0ea2a468
JJ
1148JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1149 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1150 whitesspace changes from 4.64-PH/27
1151
1152JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1153 match 4.64-PH/13
1154
1155JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1156 are found, allow negative numbers in numeric criteria)
1157
1158JJ/06 exipick.20061117.2, added new $message_body_missing variable
1159
1160JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1161 to match changes made in 4.64-PH/43
1162
8a10f5a4
PH
1163PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1164
30e18802
PH
1165PH/47 Put in an explicit test for a DNS lookup of an address record where the
1166 "domain" is actually an IP address, and force a failure. This locks out
1167 those revolvers/nameservers that support "A-for-A" lookups, in
1168 contravention of the specifications.
1169
55728a4f
PH
1170PH/48 When a host name was looked up from an IP address, and the subsequent
1171 forward lookup of the name timed out, the host name was left in
1172 $sender_host_name, contrary to the specification.
d7d7b289 1173
d7837193
PH
1174PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1175 restricted to single-key lookups, Exim was not diagnosing an error if
1176 * or *@ was used with a query-style lookup.
1177
87054a31
PH
1178PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1179
ea2c01d2
MH
1180MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1181 long ago, but noone interested enough thought of it. Let's just say that
1182 the "1.1" means that there are some new functions that weren't there at
1183 some point in the past.
1184
e4fa6968
PH
1185PH/51 Error processing for expansion failure of helo_data from an smtp
1186 transport during callout processing was broken.
1187
56f5d9bd
PH
1188PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1189 tested/used via the -bh/-bhc/-bs options.
1190
922e1c28
PH
1191PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1192 bug, fixed in subsequent PCRE releases).
1193
21eb6e72
PH
1194PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1195 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1196
a0540757
PH
1197PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1198
944e9e9c 1199
478be7b0
SC
1200Exim version 4.63
1201-----------------
1202
1203SC/01 Use a glob alias rather than an array ref in eximstats generated
1204 parser. This improves both readability and performance.
1205
1206SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1207 Don't display local sender or destination tables in eximstats unless
1208 there is data to show.
1209 Added average volumes into the eximstats top table text output.
1210
1211SC/03 Collect data on the number of addresses (recipients) as well
1212 as the number of messages in eximstats.
1213
2b965a65
TF
1214TF/01 Correct an error in the documentation for the redirect router. Exim
1215 does (usually) call initgroups() when daemonizing.
478be7b0 1216
45b91596
PH
1217TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1218 with consistent privilege compared to when running as a daemon.
478be7b0 1219
c59f5781
TF
1220TF/03 Note in the spec that $authenticated_id is not set for local
1221 submissions from trusted users.
1222
90fc3069
TF
1223TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1224 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1225
6083aca0
TF
1226TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1227 by adding some example configuration directives to the default
1228 configuration file. A little bit of work is required to uncomment the
1229 directives and define how usernames and passwords are checked, but
1230 there is now a framework to start from.
1231
765b530f
PH
1232PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1233 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1234 without this. I don't know how relevant this is to other LDAP libraries.
1235
4e167a8c
PH
1236PH/02 Add the verb name to the "unknown ACL verb" error.
1237
4608d683
PH
1238PH/03 Magnus Holmgren's patch for filter_prepend_home.
1239
b8dc3e4a
PH
1240PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1241
5418e93b
PH
1242PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1243 directory not expanded when it should be if an expanded home directory
1244 was set for the address (which is overridden by the transport).
1245
b4a9bda2
PH
1246PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1247 libradius.
1248
45b91596
PH
1249PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1250 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1251 because it is too late at that time, and has no effect.
1252
5547e2c5
PH
1253PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1254 security issue with \' (bugzilla #107). I could not use the
1255 PQescapeStringConn() function, because it needs a PGconn value as one of
1256 its arguments.
1257
dbcef0ea
PH
1258PH/08 When testing addresses using -bt, indicate those final addresses that
1259 are duplicates that would not cause an additional delivery. At least one
1260 person was confused, thinking that -bt output corresponded to deliveries.
1261 (Suppressing duplicates isn't a good idea as you lose the information
1262 about possibly different redirections that led to the duplicates.)
1263
25257489
PH
1264PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1265 systems where poll() doesn't work, in particular OS X.
1266
c816d124
PH
1267PH/10 Added more information to debugging output for retry time not reached.
1268
a9ccd69a
PH
1269PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1270 operations in malware.c.
1271
75fa1910
PH
1272PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1273 signatures.
1274
a7d7aa58
PH
1275PH/13 If write_rejectlog was set false when logging was sent to syslog with
1276 syslog_duplication set false, log lines that would normally be written
1277 both the the main log and to the reject log were not written to syslog at
1278 all.
1279
42119b09
PH
1280PH/14 In the default configuration, change the use of "message" in ACL warn
1281 statements to "add_header".
1282
41609df5
PH
1283PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1284 not followed by a command (e.g. "seen endif").
1285
a5bd321b
PH
1286PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1287 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1288 latter.
1289
e85a7ad5 1290PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1291 so that it is now:
1292
e85a7ad5
PH
1293 ${if or { \
1294 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1295 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1296 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1297 }{no}{yes}}
1298
e85a7ad5
PH
1299 The Auto-Submitted: and various List- headers are standardised, whereas I
1300 don't think Precedence: ever was.
5dff5817 1301
d8fe1c03
PH
1302PH/18 Refactored debugging code in route_finduser() to show more information,
1303 in particular, the error code if getpwnam() issues one.
1304
16282d2b
PH
1305PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1306 This is apparently needed in addition to the PH/07 change above to avoid
1307 any possible encoding problems.
1308
35d40a98
PH
1309PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1310 but not after initializing Perl.
1311
034d99ab
PH
1312PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1313 output them only if debugging. By default they are written stderr,
1314 apparently, which is not desirable.
1315
6ec97b1b
PH
1316PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1317 queries.
1318
e22ca4ac
JJ
1319JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1320 --not options
1321
1322JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1323
33d73e3b
PH
1324PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1325 authenticated or an ident call has been made. Suppress the default
1326 values for $authenticated_id and $authenticated_sender (but permit -oMai
1327 and -oMas) when testing with -bh.
1328
9ecb03f3
PH
1329PH/24 Re-jigged the order of the tests in the default configuration so that the
1330 tests for valid domains and recipients precede the DNS black list and CSA
1331 tests, on the grounds that those ones are more expensive.
1332
084efe8d
PH
1333PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1334 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1335 This bug exists in every version of Exim that I still have, right back to
1336 0.12.
1337
366fc9f0
PH
1338PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1339 However, an attempt to turn on case-sensitivity in a regex key by
1340 including (?-i) didn't work because the subject string was already
1341 lowercased, and the effects were non-intuitive. It turns out that a
1342 one-line patch can be used to allow (?-i) to work as expected.
1343
c59f5781 1344
c887c79e
TF
1345Exim version 4.62
1346-----------------
1347
1348TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1349 other effects) broke the use of negated acl sub-conditions.
1350
1cce3af8
PH
1351PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1352 patch).
1353
afb3eaaf
PH
1354PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1355 "Deny" causes Exim to reject the incoming connection with a 554 error.
1356 Unfortunately, if there is a major crisis, such as a disk failure,
1357 tcp-wrappers gives "deny", whereas what one would like would be some
1358 kind of temporary error. A kludge has been added to help with this.
1359 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1360 554 error is used if errno is still zero or contains ENOENT (which occurs
1361 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1362 451 error is used.
1363
e173618b
PH
1364PH/03 Add -lutil to the default FreeBSD LIBS setting.
1365
dd16e114
PH
1366PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1367 errors. Otherwise a message that provokes a temporary error (when other
1368 messages do not) can cause a whole host to time out.
1369
f7fd3850
PH
1370PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1371 addresses were routed directly to files or pipes from a redirect router.
1372 File deliveries just didn't batch; pipe deliveries might have suffered
1373 odd errors.
1374
d87df92c
PH
1375PH/06 A failure to get a lock for a hints database would erroneously always say
1376 "Failed to get write lock", even when it was really a read lock.
1377
7e9f683d
PH
1378PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1379 of 0600. This has been changed to use the value of the lockfile_mode
1380 option (which defaults to 0600).
1381
bfad5236
PH
1382PH/08 Applied small patch from the Sieve maintainer.
1383
01c490df
PH
1384PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1385 folder from quota calculations, a direct delivery into this folder messed
1386 up the contents of the maildirsize file. This was because the regex was
1387 used only to exclude .Trash (or whatever) when the size of the mailbox
1388 was calculated. There was no check that a delivery was happening into an
1389 excluded directory. This bug has been fixed by ignoring all quota
1390 processing for deliveries into excluded directories.
1391
d6629cdc
PH
1392PH/10 Added the maildirfolder_create_regex option to appendfile.
1393
1cce3af8 1394
214e2000
PH
1395Exim version 4.61
1396-----------------
1397
1398PH/01 The code for finding all the local interface addresses on a FreeBSD
1399 system running IPv6 was broken. This may well have applied to all BSD
1400 systems, as well as to others that have similar system calls. The broken
1401 code found IPv4 interfaces correctly, but gave incorrect values for the
1402 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1403 that it would not match correctly against @[] and not recognize the IPv6
1404 addresses as local.
1405
f9daeae0
PH
1406PH/02 The ipliteral router was not recognizing addresses of the form user@
1407 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1408
7e66e54d
PH
1409PH/03 Added disable_ipv6.
1410
c8ea1597
PH
1411PH/04 Changed $reply_address to use the raw form of the headers instead of the
1412 decoded form, because it is most often used to construct To: headers
1413 lines in autoreplies, and the decoded form may well be syntactically
1414 invalid. However, $reply_address has leading white space removed, and all
1415 newlines turned into spaces so that the autoreply transport does not
1416 grumble.
1417
911f6fde
PH
1418PH/05 If group was specified without a user on a router, and no group or user
1419 was specified on a transport, the group from the router was ignored.
1420
47ca6d6c
PH
1421PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1422 for visible compile-time settings that can be used to change these
1423 numbers, for those that want even more. Backwards compatibility with old
1424 spool files has been maintained. However, going back to a previous Exim
1425 release will lost any variables that are in spool files.
1426
ed0e9820
PH
1427PH/07 Two small changes when running in the test harness: increase delay when
1428 passing a TCP/IP connection to a new process, in case the original
1429 process has to generate a bounce, and remove special handling of
1430 127.0.0.2 (sic), which is no longer necessary.
1431
eff37e47
PH
1432PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1433 be the same on different OS.
1434
1921d2ea
PH
1435PH/09 Moved a debug statement in filter processing to avoid a race problem when
1436 testing.
1437
b3f69ca8
JJ
1438JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1439 whether --show-vars was specified or not
1440
1441JJ/02 exipick: Added support for new ACL variable spool format introduced
1442 in 4.61-PH/06
1443
424a1c63
PH
1444PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1445 syntactically invalid From: or Reply-to: line, and a filter used this to
1446 generate an autoreply, and therefore failed to obtain an address for the
1447 autoreply, Exim could try to deliver to a non-existent relative file
1448 name, causing unrelated and misleading errors. What now happens is that
1449 it logs this as a hard delivery error, but does not attempt to create a
1450 bounce message.
1451
7a100415
PH
1452PH/11 The exinext utility has a -C option for testing purposes, but although
1453 the given file was scanned by exinext itself; it wasn't being passed on
1454 when Exim was called.
1455
19b9dc85
PH
1456PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1457 an end-of-file indication when reading a command response.
1458
309bd837
PH
1459PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1460 compiled. In many other places in Exim, IPv6 addresses are always
1461 recognized, so I have changed this. It also means that IPv4 domain
1462 literals of the form [IPV4:n.n.n.n] are now always recognized.
1463
59e82a2a
PH
1464PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1465 used if the router is not running as root, for example, when verifying at
1466 ACL time, or when using -bh. The debugging output from this situation was
1467 non-existent - all you got was a failure to exec. I have made two
1468 changes:
1469
1470 (a) Failures to set uid/gid, the current directory, or a process leader
1471 in a subprocess such as that created by queryprogram now generate
1472 suitable debugging ouput when -d is set.
1473
1474 (b) The queryprogram router detects when it is not running as root,
1475 outputs suitable debugging information if -d is set, and then runs
1476 the subprocess without attempting to change uid/gid.
1477
9edc04ce
PH
1478PH/15 Minor change to Makefile for building test_host (undocumented testing
1479 feature).
1480
1349e1e5
PH
1481PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1482 additional section of a DNS packet that returns MX or SRV records.
1483 Instead, it always explicitly searches for A/AAAA records. This avoids
1484 major problems that occur when a DNS server includes only records of one
1485 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1486 fixed another bug: if SRV records were looked up and the corresponding
1487 address records were *not* found in the additional section, the port
1488 values from the SRV records were lost.
1489
ea49d0e1
PH
1490PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1491 using the correct key (the original address) when searching the retry
1492 rules in order to find which one to use for generating the retry hint.
1493
064a94c9
PH
1494PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1495 adding the default one. Similarly, if it contains a Reply-To: header, the
1496 errors_reply_to option, if set, is not used.
1497
727071f8
PH
1498PH/19 When calculating a retry time, Exim used to measure the "time since
1499 failure" by looking at the "first failed" field in the retry record. Now
1500 it does not use this if it is later than than the arrival time of the
1501 message. Instead it uses the arrival time. This makes for better
1502 behaviour in cases where some deliveries succeed, thus re-setting the
1503 "first failed" field. An example is a quota failure for a huge message
1504 when small messages continue to be delivered. Without this change, the
1505 "time since failure" will always be short, possible causing more frequent
1506 delivery attempts for the huge message than are intended.
dd16e114 1507 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1508
f78eb7c6
PH
1509PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1510 $1, $2, $3) because the numerical variables can be reset during some
1511 expansion items (e.g. "match"), thereby losing the authentication data.
1512
21c28500
PH
1513PH/21 Make -bV show the size of off_t variables so that the test suite can
1514 decide whether to run tests for quotas > 2G.
1515
1516PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1517 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1518 filecount value is greater than 2G or if a quota value is greater than 2G
1519 on a system where the size of off_t is not greater than 4, a panic error
1520 is given.
1521
1688f43b
PH
1522PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1523 never match. The debug and -bh output now contains an explicit error
1524 message indicating a malformed IPv4 address or mask.
1525
1526PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1527 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1528 PH/23 above applies.
1529
9675b384
PH
1530PH/25 Do not write to syslog when running in the test harness. The only
1531 occasion when this arises is a failure to open the main or panic logs
1532 (for which there is an explicit test).
1533
6a3f1455
PH
1534PH/26 Added the /no_tell option to "control=freeze".
1535
dac79d3e
PH
1536PH/27 If a host name lookup failed very early in a connection, for example, if
1537 the IP address matched host_lookup and the reverse lookup yielded a name
1538 that did not have a forward lookup, an error message of the form "no IP
1539 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1540 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1541
5977a0b3
PH
1542PH/28 An enabling patch from MH: add new function child_open_exim2() which
1543 allows the sender and the authenticated sender to be set when
1544 submitting a message from within Exim. Since child_open_exim() is
1545 documented for local_scan(), the new function should be too.
1546
c91535f3
PH
1547PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1548 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1549 results in an empty string is now treated as unset.
1550
0d46a8c8
PH
1551PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1552
278c6e6c
PH
1553PH/31 Added sender_verify_fail logging option.
1554
2cbb4081
PH
1555PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1556 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1557 tidied the source and removed it altogether.
1558
3eef829e
PH
1559PH/33 When a queue run was abandoned because the load average was too high, a
1560 log line was always written; now it is written only if the queue_run log
1561 selector is set. In addition, the log line for abandonment now contains
1562 information about the queue run such as the pid. This is always present
1563 in "start" and "stop" lines but was omitted from the "abandon" line.
1564
1ab95fa6
PH
1565PH/34 Omit spaces between a header name and the colon in the error message that
1566 is given when verify = headers_syntax fails (if there are lots of them,
1567 the message gets confusing).
1568
230205fc
PH
1569PH/35 Change the default for dns_check_names_pattern to allow slashes within
1570 names, as there are now some PTR records that contain slashes. This check
1571 is only to protect against broken name servers that fall over on strange
1572 characters, so the fact that it applies to all lookups doesn't matter.
1573
75e0e026
PH
1574PH/36 Now that the new test suite is complete, we can remove some of the
1575 special code in Exim that was needed for the old test suite. For example,
1576 sorting DNS records because real resolvers return them in an arbitrary
1577 order. The new test suite's fake resolver always returns records in the
1578 same order.
1579
1580PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1581 bounces) except when queue_only is set, to avoid logging races between
1582 the different processes.
1583
145396a6
PH
1584PH/38 Panic-die if .include specifies a non-absolute path.
1585
3cd34f13
PH
1586PH/39 A tweak to the "H" retry rule from its user.
1587
11121d3d
JJ
1588JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1589 a label. They prevented compilation on older perls.
1590
1591JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1592 a warning to be raised on newish perls.
1593
1594JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1595 on queue. Changes to match documented behaviour of showing count of
1596 messages matching specified criteria.
1597
8def5aaf
PH
1598PH/40 Changed the default ident timeout from 30s to 5s.
1599
929ba01c
PH
1600PH/41 Added support for the use of login_cap features, on those BSD systems
1601 that have them, for controlling the resources used by pipe deliveries.
1602
2632889e
PH
1603PH/42 The content-scanning code uses fopen() to create files in which to put
1604 message data. Previously it was not paying any attention to the mode of
1605 the files. Exim runs with umask(0) because the rest of the code creates
1606 files with open(), and sets the required mode explicitly. Thus, these
1607 files were ending up world-writeable. This was not a big issue, because,
1608 being within the spool directory, they were not world-accessible. I have
1609 created a function called modefopen, which takes an additional mode
1610 argument. It sets umask(777), creates the file, chmods it to the required
1611 mode, then resets the umask. All the relevant calls to fopen() in the
1612 content scanning code have been changed to use this function.
1613
944a9c55
PH
1614PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1615 to 24 hours. This avoids potential overflow problems when processing G
1616 and H retry rules. I suspect nobody ever tinkers with this value.
1617
4a23603b
PH
1618PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1619
4730f942
PH
1620PH/45 When the plaintext authenticator is running as a client, the server's
1621 challenges are checked to ensure they are valid base64 strings. By
1622 default, the authentication attempt is cancelled if an invalid string is
1623 received. Setting client_ignore_invalid_base64 true ignores these errors.
1624 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1625 they are received. Thus, the responses can be made to depend on the
1626 challenges. If an invalid string is ignored, an empty string is placed in
1627 the variable.
1628
30dba1e6
PH
1629PH/46 Messages that are created by the autoreply transport now contains a
1630 References: header, in accordance with RFCs 2822 and 3834.
1631
382afc6b
PH
1632PH/47 Added authenticated_sender_force to the smtp transport.
1633
a86229cf
PH
1634PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1635
50c99ba6
PH
1636PH/49 Installed latest patch from the Sieve maintainer.
1637
d35e429d
PH
1638PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1639 was also set, the appendfile transport was unnecessarily scanning a
1640 directory of message files (e.g. for maildir delivery) to find the count
1641 of files (along with the size), even though it did not need this
1642 information. It now does the scan only if it needs to find either the
1643 size of the count of files.
1644
f90d018c
PH
1645PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1646
75def545
PH
1647PH/52 Two bugs concerned with error handling when the smtp transport is
1648 used in LMTP mode:
1649
1650 (i) Exim was not creating retry information for temporary errors given
1651 for individual recipients after the DATA command when the smtp transport
1652 was used in LMTP mode. This meant that they could be retried too
1653 frequently, and not timed out correctly.
1654
1655 (ii) Exim was setting the flag that allows error details to be returned
1656 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1657 recipients that were returned after the DATA command.
1658
1659PH/53 This is related to PH/52, but is more general: for any failing address,
1660 when detailed error information was permitted to be returned to the
1661 sender, but the error was temporary, then after the final timeout, only
1662 "retry timeout exceeded" was returned. Now it returns the full error as
1663 well as "retry timeout exceeded".
1664
c46782ef
PH
1665PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1666 do this, and (what is worse) MTAs that accept it.
1667
71fafd95
PH
1668PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1669 will now be deprecated.
1670
2c5db4fd
PH
1671PH/56 New os.c-cygwin from the Cygwin maintainer.
1672
9cf6b11a
JJ
1673JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1674 formats (previously only available in exim formats via -bpr, -bpru,
1675 and -bpra. Now also available in native and exiqgrep formats)
1676
1677JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1678 with very large, slow to parse queues
1679
1680JJ/08 exipick: added ! as generic prefix to negate any criteria format
1681
1682JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1683
898d150f
PH
1684PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1685 responses to authentication challenges, though it was showing the
1686 challenges; (ii) I've removed the CR characters from the debug output for
1687 SMTP output lines.
1688
46218253
PH
1689PH/58 Allow for the insertion of a newline as well as a space when a string
1690 is turned into more than one encoded-word during RFC 2047 encoding. The
1691 Sieve code now uses this.
1692
e97957bc
PH
1693PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1694 data_4xx, lost_connection, tls_required.
1695
81e509d7
PH
1696PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1697 message was being sent as an SMTP response.
1698
3d240ff7
PH
1699PH/61 Add -l and -k options to exicyclog.
1700
b37c4101
PH
1701PH/62 When verifying, if an address was redirected to one new address, so that
1702 verification continued, and the new address failed or deferred after
1703 having set something in $address_data, the value of $address_data was not
1704 passed back to the ACL. This was different to the case when no
1705 redirection occurred. The value is now passed back in both cases.
1706
79378e0f
PH
1707PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1708 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1709 use login_cap.h, so on its own it isn't the distinguishing feature. The
1710 new name refers directly to the setclassresources() function.
1711
e49c7bb4
PH
1712PH/65 Added configuration files for NetBSD3.
1713
d114ec46
PH
1714PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1715
f3d7df6c
PH
1716PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1717 is preferred over IPv4.
1718
715ab376
PH
1719PH/68 The bounce_return_message and bounce_return_body options were not being
1720 honoured for bounces generated during the reception of non-SMTP messages.
1721 In particular, this applied to messages rejected by the ACL. This bug has
1722 been fixed. However, if bounce_return_message is true and bounce_return_
1723 body is false, the headers that are returned for a non-SMTP message
1724 include only those that have been read before the error was detected.
1725 (In the case of an ACL rejection, they have all been read.)
1726
6b31b150
PH
1727PH/69 The HTML version of the specification is now built in a directory called
1728 spec_html instead of spec.html, because the latter looks like a path with
1729 a MIME-type, and this confuses some software.
1730
1731PH/70 Catch two compiler warnings in sieve.c.
1732
d515a917
PH
1733PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1734 function verify_get_ident() calls ip_connect() to connect a socket, but
1735 if the "connect()" function timed out, ip_connect() used to close the
1736 socket. However, verify_get_ident() also closes the socket later, and in
1737 between Exim writes to the log, which may get opened at this point. When
1738 the socket was closed in ip_connect(), the log could get the same file
1739 descriptor number as the socket. This naturally causes chaos. The fix is
1740 not to close the socket in ip_connect(); the socket should be closed by
1741 the function that creates it. There was only one place in the code where
1742 this was missing, in the iplookup router, which I don't think anybody now
1743 uses, but I've fixed it anyway.
1744
9b8fadde
PH
1745PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1746 well as to direct DNS lookups. Otherwise the handling of names in host
1747 lists is inconsistent and therefore confusing.
1748
214e2000 1749
5de37277
PH
1750Exim version 4.60
1751-----------------
1752
cc38ddbf
PH
1753PH/01 Two changes to the default runtime configuration:
1754
1755 (1) Move the checks for relay_from_hosts and authenticated clients from
1756 after to before the (commented out) DNS black list checks.
1757
1758 (2) Add control=submission to the relay_from_hosts and authenticated
1759 clients checks, on the grounds that messages accepted by these
1760 statements are most likely to be submissions.
5de37277 1761
72fdd6ae
PH
1762PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1763
1764 (1) Generate an error if the third argument for the ${prvs expansion is
1765 not a single digit.
1766
1767 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1768 string.
1769
1770 (3) Reset the variables that are obtained from the first argument of
1771 ${prvscheck and used in the second argument before leaving the code,
1772 because their memory is reclaimed, so using them afterwards may do
1773 silly things.
1774
1775 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1776 one (it's much easier than Tom thought :-).
1777
1778 (5) Because of (4), we can now allow for the use of $prvscheck_result
1779 inside the third argument.
cb9328de 1780
cb741023
PH
1781PH/03 For some reason, the default setting of PATH when running a command from
1782 a pipe transport was just "/usr/bin". I have changed it to
1783 "/bin:/usr/bin".
1784
f174f16e
PH
1785PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1786 anything to be listed in the output from -bV.
b2f5a032 1787
c25242d7
PH
1788PH/05 When a filter generated an autoreply, the entire To: header line was
1789 quoted in the delivery log line, like this:
1790
1791 => >A.N.Other <ano@some.domain> <original@ddress> ...
1792
1793 This has been changed so that it extracts the operative address. There
1794 may be more than one such address. If so, they are comma-separated, like
1795 this:
1796
1797 => >ano@some.domain,ona@other.domain <original@ddress> ...
1798
82c19f95
PH
1799PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1800 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1801 not being looked up in the rDNS to get a host name, Exim was showing the
1802 IP address twice in Received: lines, even though the IP addresses were
1803 identical. For example:
1804
1805 Received: from [1.2.3.4] (helo=[1.2.3.4])
1806
1807 However, if the real host name was known, it was omitting the HELO data
1808 if it matched the actual IP address. This has been tidied up so that it
1809 doesn't show the same IP address twice.
1810
d7ffbc12
PH
1811PH/07 When both +timestamp and +memory debugging was on, the value given by
1812 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1813 called by the debug printing, thereby overwriting the timestamp buffer.
1814 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1815
9f526266
PH
1816PH/08 When the original message was included in an autoreply transport, it
1817 always said "this is a copy of the message, including all the headers",
1818 even if body_only or headers_only was set. It now gives an appropriate
1819 message.
1820
87fcc8b9
PH
1821PH/09 Applied a patch from the Sieve maintainer which:
1822
1823 o fixes some comments
1824 o adds the (disabled) notify extension core
1825 o adds some debug output for the result of if/elsif tests
1826 o points to the current vacation draft in the documentation
1827 and documents the missing references header update
1828
1829 and most important:
1830
1831 o fixes a bug in processing the envelope test (when testing
1832 multiple envelope elements, the last element determinted the
1833 result)
1834
456682f5
PH
1835PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1836 Electronic Mail") by including:
1837
1838 Auto-submitted: auto-generated
1839
1840 in the messages that it generates (bounce messages and others, such as
1841 warnings). In the case of bounce messages for non-SMTP mesages, there was
1842 also a typo: it was using "Auto_submitted" (underscore instead of
1843 hyphen). Since every message generated by Exim is necessarily in response
1844 to another message, thes have all been changed to:
1845
1846 Auto-Submitted: auto-replied
1847
1848 in accordance with these statements in the RFC:
1849
1850 The auto-replied keyword:
1851
1852 - SHOULD be used on messages sent in direct response to another
1853 message by an automatic process,
1854
1855 - MUST NOT be used on manually-generated messages,
1856
1857 - MAY be used on Delivery Status Notifications (DSNs) and Message
1858 Disposition Notifications (MDNs),
1859
1860 - MUST NOT be used on messages generated by automatic or periodic
1861 processes, except for messages which are automatic responses to
1862 other messages.
1863
3e46c1aa
PH
1864PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1865 to the default Received: header definition.
456682f5 1866
49826d12
PH
1867PH/12 Added log selector acl_warn_skipped (default on).
1868
eba0c039
PH
1869PH/13 After a successful wildlsearch lookup, discard the values of numeric
1870 variables because (a) they are in the wrong storage pool and (b) even if
1871 they were copied, it wouldn't work properly because of the caching.
1872
a0d6ba8a
PH
1873PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1874 checking when decoding. Apparently there are clients that generate
1875 overlong encoded strings. Why am I not surprised?
1876
f0917727
PH
1877PH/15 If the first argument of "${if match_address" was not empty, but did not
1878 contain an "@" character, Exim crashed. Now it writes a panic log message
1879 and treats the condition as false.
1880
096fee00
PH
1881PH/16 In autoreply, treat an empty string for "once" the same as unset.
1882
024bd3c2
PH
1883PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1884 extension "envelope-auth". The code is finished and in agreement with
1885 other implementations, but there is no documentation so far and in fact,
1886 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1887 not changing the active code.
1888
1889 Print executed "if" and "elsif" statements when debugging is used. This
1890 helps a great deal to understand what a filter does.
1891
1892 Document more things not specified clearly in RFC3028. I had all this
1893 sorted out, when out of a sudden new issues came to my mind. Oops."
1894
df199fec
PH
1895PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1896 (Bugzilla #53).
1897
d27f1df3
PH
1898PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1899 canonical form (as documented). However, after a host name lookup from
1900 the IP address, check_host() was doing a simple string comparison with
1901 addresses acquired from the DNS when checking that the found name did
1902 have the original IP as one of its addresses. Since any found IPv6
1903 addresses are likely to be in abbreviated form, the comparison could
1904 fail. Luckily, there already exists a function for doing the comparison
1905 by converting both addresses to binary, so now that is used instead of
1906 the text comparison.
1907
96776534
PH
1908PH/20 There was another similar case to PH/19, when a complete host name was
1909 given in a host list; looking up its IP address could give an abbreviated
1910 form, whereas the current host's name might or might not be abbreviated.
1911 The same fix has been applied.
1912
5de37277 1913
9a799bc0
PH
1914Exim version 4.54
1915-----------------
1916
1917PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1918 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1919 It now does.
1920
99a4b039
PH
1921PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1922 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1923
1924PH/03 Typo: missing ".o" in src/pcre/Makefile.
1925
4b233853
PH
1926PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1927 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1928 Also, for "Auto-Submitted", treat anything other than "no" as
1929 non-personal, in accordance with RFC 3834. (Previously it treated
1930 anything starting "auto-" as non-personal.)
1931
8857ccfd
PH
1932TF/01 The control=submission/name=... option had a problem with syntax
1933 errors if the name included a slash character. The /name= option
1934 now slurps the rest of the string, so it can include any characters
1935 but it must come last in the list of options (after /sender_retain
1936 or /domain=).
1937
433a2980
PH
1938PH/05 Some modifications to the interface to the fake nameserver for the new
1939 testing suite.
1940
3e46c1aa 1941
9a799bc0 1942
e3a311ba
TK
1943Exim version 4.53
1944-----------------
1945
1946TK/01 Added the "success_on_redirect" address verification option. See
1947 NewStuff for rationale and an example.
1948
13b685f9
PH
1949PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1950
395ff96d
PH
1951PH/02 Patch to exigrep to allow it to work on syslog lines.
1952
5b68f6e4
PH
1953PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1954 fread() to skip over the body file's header line, because in Cygwin the
1955 header line is locked and is inaccessible.
1956
1ab52c69
PH
1957PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1958 co-exist for some time) to make it clear that it is the Exim ID that is
1959 referenced, not the Message-ID: header line.
1960
b07e6aa3
PH
1961PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1962 string_format() function, because snprintf() does not exist on all
1963 operating systems.
1964
254e032f
PH
1965PH/06 The use of forbid_filter_existstest now also locks out the use of the
1966 ${stat: expansion item.
1967
3af76a81
PH
1968PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1969 protocol synchronization error", to keep the pedants happy.
1970
2548ba04
PH
1971PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1972 well as for IRIX systems, when gcc is being used. See the host.c source
1973 file for comments.
1974
b6c6011d
PH
1975PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1976
cf39cf57
PH
1977PH/10 Named domain lists were not working if used in a queue_smtp_domains
1978 setting.
1979
f1513293
PH
1980PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1981 transport and to the smtp transport in LMTP mode.
1982
727549a4
PH
1983TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1984
af46795e
PH
1985PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1986 run a filter in a subprocess. This could lead to confusion in subsequent
1987 lookups in the parent process. There should also be a search_tidyup() at
1988 the end of the subprocess.
1989
d7b47fd0
PH
1990PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1991 only if the host matched helo_try_verify_hosts, which caused the
1992 verification to occur when the EHLO/HELO command was issued. The ACL just
1993 tested the remembered result. Now, if a previous verification attempt has
1994 not happened, "verify = helo" does it there and then.
1995
ee744174
JJ
1996JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1997
b582ab87
PH
1998TK/03 Fix log output including CR from clamd.
1999
41a13e0a
PH
2000PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2001 exist provoked a memory error which could cause a segfault.
2002
f625cc5a
PH
2003PH/15 Installed PCRE 6.2
2004
2005PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2006
21f7af35
PH
2007PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2008 of the problem. Specifically, suggested +O2 rather than +O1 for the
2009 HP-UX compiler.
2010
31480e42
PH
2011PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2012
2d280592
PH
2013PH/20 If a delivery was routed to a non-standard port by means of an SRV
2014 record, the port was not correctly logged when the outgoing_port log
2015 selector was set (it logged the transort's default port).
2016
7cd1141b
PH
2017PH/21 Added support for host-specific ports to manualroute, queryprogram,
2018 fallback_hosts, and "hosts" in the smtp transport.
2019
2020PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2021 host errors such as "Connection refused".
2022
750af86e
PH
2023PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2024 authentication with radiusclient 0.4.9:
2025
2026 - Error returned from rc_read_config was caught wrongly
2027 - Username/password not passed on to radius server due to wrong length.
2028
2029 The presumption is that some radiusclient API changes for 4.51/PH/17
2030 were not taken care of correctly. The code is still untested by me (my
2031 Linux distribution still has 0.3.2 of radiusclient), but it was
2032 contributed by a Radius user.
2033
2034PH/24 When doing a callout, the value of $domain wasn't set correctly when
2035 expanding the "port" option of the smtp transport.
2036
4304270b
TK
2037TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2038 while reading a MIME header. Thanks to Tom Hughes for a patch.
2039
750af86e
PH
2040PH/24 Include config.h inside local_scan.h so that configuration settings are
2041 available.
2042
64ffc24f
PH
2043PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2044 that in an ACL for RCPT (for example), you can examine exactly what was
2045 received.
2046
5dd9625b
PH
2047PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2048 commands, but it was not correctly comparing the address with the actual
2049 client host address. Thus, it would show the EHLO address in Received:
2050 header lines when this was not necessary.
2051
5591031b
PH
2052PH/27 Added the % operator to ${eval:}.
2053
ba18e66a
PH
2054PH/28 Exim tries to create and chdir to its spool directory when it starts;
2055 it should be ignoring failures (because with -C, for example, it has lost
2056 privilege). It wasn't ignoring creation failures other than "already
2057 exists".
2058
9cec981f
PH
2059PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2060 -bV or -d is used.
2061
aa2b5c79
PH
2062PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2063 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2064 too many continuations, the temporary file was not being removed, and the
2065 return code was incorrect.
aa2b5c79 2066
48a53b7f
PH
2067PH/31 Missing "BOOL" in function definition in filtertest.c.
2068
1c59d63b
PH
2069PH/32 Applied Sieve patches from the maintainer.
2070
671012da
TK
2071TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2072
1509d3a8
PH
2073PH/33 Added "verify = not_blind".
2074
2075PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2076 Local/Makefile (with some defaults set). These are used in built scripts
2077 such as exicyclog, but they have never been used in the exim_install
2078 script (though there are many overriding facilities there). I have
2079 arranged that the exim_install script now takes note of these two
2080 settings.
2081
2082PH/35 Installed configuration files for Dragonfly.
2083
2fe1a124
PH
2084PH/36 When a locally submitted message by a trusted user did not contain a
2085 From: header, and the sender address was obtained from -f or from an SMTP
2086 MAIL command, and the trusted user did not use -F to supply a sender
2087 name, $originator_name was incorrectly used when constructing a From:
2088 header. Furthermore, $originator_name was used for submission mode
2089 messages from external hosts without From: headers in a similar way,
2090 which is clearly wrong.
2091
8800895a
PH
2092PH/37 Added control=suppress_local_fixups.
2093
ccfdb010
PH
2094PH/38 When log_selector = +received_sender was set, and the addition of the
2095 sender made the log line's construction buffer exactly full, or one byte
2096 less than full, an overflow happened when the terminating "\n" was
2097 subsequently added.
2098
1130bfb0
PH
2099PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2100 when the result of a list match is failure because a DNS lookup failed.
2101
ebcb507f
PH
2102PH/40 RM_COMMAND is now used in the building process.
2103
c35e155c
PH
2104PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2105 the "build-* directories that it finds.
2106
95d1f782
PH
2107PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2108 address in a domain literal was a prefix of an interface address.
2109
fd6de02e
PH
2110PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2111 when verifying a sender address, unless rewrite_headers is false.
2112
58de37c5
PH
2113PH/44 Wrote a long comment about why errors_to addresses are verified as
2114 recipients, not senders.
2115
261cf466
TF
2116TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2117 the ratelimit ACL was added.
2118
3ee512ff
PH
2119PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2120
e08c430f
PH
2121PH/46 Added extra information about PostgreSQL errors to the error string.
2122
bef5a11f
PH
2123PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2124 avoiding the need to install special zones in a real server. This is
2125 backwards compatible; if it can't find the fake resolver, it drops back.
2126 Thus, both old and new test suites can be run.
2127
7546de58
TF
2128TF/02 Added util/ratelimit.pl
2129
e5d5a95f
TF
2130TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2131 clock is set back in time.
2132
2e88a017
TF
2133TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2134 Candler <B.Candler@pobox.com>.
2135
a5f65aa4
TF
2136TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2137 OK for addresses that are the result of redirections.
2138
e7726cbf
PH
2139PH/48 A number of further additions for the benefit of the new test suite,
2140 including a fake gethostbyname() that interfaces to the fake DNS resolver
2141 (see PH/47 above).
2142
a7fdad5b
TF
2143TF/06 The fix for widen_domains has also been applied to qualify_single and
2144 search_parents which are the other dnslookup options that can cause
2145 header rewrites.
2146
6af56900
PH
2147PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2148 type ("H").
2149
0925ede6
PH
2150PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2151
66afa403
TF
2152TF/07 Exim produced the error message "an SRV record indicated no SMTP
2153 service" if it encountered an MX record with an empty target hostname.
2154 The message is now "an MX or SRV record indicated no SMTP service".
2155
0154e85a
TF
2156TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2157 if the DNS of the sending site is misconfigured. This is quite a
2158 common situation. This change restores the behaviour of treating a
2159 helo verification defer as a failure.
2160
16f12c76
PH
2161PH/51 If self=fail was set on a router, the bounce message did not include the
2162 actual error message.
2163
bbe902f0 2164
e5a9dba6
PH
2165Exim version 4.52
2166-----------------
2167
2168TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2169
22c3b60b
PH
2170PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2171 command itself ended in error, the underlying message about the transport
2172 filter timeout was being overwritten with the pipe command error. Now the
2173 underlying error message should be appended to the second error message.
2174
06a9b4b5
PH
2175TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2176
c1ac6996
PH
2177PH/02 Reduce the amount of output that "make" produces by default. Full output
2178 can still be requested.
2179
9c7a242c
PH
2180PH/03 The warning log line about a condition test deferring for a "warn" verb
2181 was being output only once per connection, rather than after each
2182 occurrence (because it was using the same function as for successful
2183 "warn" verbs). This seems wrong, so I have changed it.
2184
87ba3f5f
PH
2185TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2186 it should not have, which might have caused a crash in the right
2187 circumstances, but probably never did.
2188
2189PH/04 Installed a modified version of Tony Finch's patch to make submission
2190 mode fix the return path as well as the Sender: header line, and to
2191 add a /name= option so that you can make the user's friendly name appear
2192 in the header line.
2193
29aba418
TF
2194TF/03 Added the control = fakedefer ACL modifier.
2195
fe0dab11
TF
2196TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2197 Mark Lowes for thorough testing.
870f6ba8 2198
11d337a4
TK
2199TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2200
2201TK/03 Merged latest SRS patch from Miles Wilton.
2202
415c8f3b
PH
2203PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2204 with the definition in sysexits.h (which is #included earlier).
2205 Fortunately, Exim does not actually use EX_OK. The code used to try to
2206 preserve the sysexits.h value, by assumimg that macro definitions were
2207 scanned for macro replacements. I have been disabused of this notion,
2208 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2209
958541e9
PH
2210PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2211 in the smtp transport. When a block could not be written in a single
2212 write() function, the timeout was being re-applied to each part-write.
2213 This seems wrong - if the receiver was accepting one byte at a time it
2214 would take for ever. The timeout is now adjusted when this happens. It
2215 doesn't have to be particularly precise.
2216
c206415f
TK
2217TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2218 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2219
2a4be8f9
PH
2220PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2221 without a domain if the check to <postmaster@domain> fails.
2222
1cba11c5
SC
2223SC/01 Eximstats: added -xls and the ability to specify output files
2224 (patch written by Frank Heydlauf).
2225
2226SC/02 Eximstats: use FileHandles for outputing results.
2227
2228SC/03 Eximstats: allow any combination of xls, txt, and html output.
2229
2230SC/04 Eximstats: fixed display of large numbers with -nvr option
2231
2232SC/05 Eximstats: fixed merging of reports with empty tables.
2233
2234SC/06 Eximstats: added the -include_original_destination flag
2235
2236SC/07 Eximstats: removed tabs and trailing whitespace.
2237
1005d00e
TK
2238TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2239
2240TK/06 MBOX spool code: Add real "From " MBOX separator line
2241 so the .eml file is really in mbox format (even though
2242 most programs do not really care). Patch from Alex Miller.
2243
2244TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2245 The latter is generated from $received_to and is only set if the
2246 message has one envelope recipient. SA can use these headers,
2247 obviously out-of-the-box. Patch from Alex Miller.
2248
9b4768fa
PH
2249PH/08 The ${def test on a variable was returning false if the variable's
2250 value was "0", contrary to what the specification has always said!
2251 The result should be true unless the variable is empty.
2252
2253PH/09 The syntax error of a character other than { following "${if
2254 def:variable_name" (after optional whitespace) was not being diagnosed.
2255 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2256 accidental colon was present, for example, could give incorrect results.
2257
0d7eb84a
PH
2258PH/10 Tidied the code in a number of places where the st_size field of a stat()
2259 result is used (not including appendfile, where other changes are about
2260 to be made).
2261
2262PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2263 This involved changing a lot of size variables from int to off_t. It
2264 should work with maildirs and everything.
2265
40727bee
TK
2266TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2267 spamd dying while we are connected to it.
2268
554d2369
TF
2269TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2270 <jgh@wizmail.org>
2271
1f922db1
PH
2272PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2273 function for BDB 4.3.
2274
ef213c3b
PH
2275PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2276
8ac170f3
PH
2277PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2278 the sources for PCRE have been re-arranged and more files are now
2279 involved.
2280
b1c749bb
PH
2281PH/15 The code I had for printing potentially long long variables in PH/11
2282 above was not the best (it lost precision). The length of off_t variables
2283 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2284 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2285 to be "long long int" or "long int". This is needed for the internal
2286 formatting function string_vformat().
b1c749bb 2287
4aac9b49
PH
2288PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2289 the configuration file to be ":syslog", then the script "guesses" where
2290 the logs files are, rather than using the compiled in default. In our
2291 case the guess is not the same as the compiled default, so the script
2292 suddenly stopped working when I started to use syslog. The patch checks
2293 to see if log_file_path is "". If so, it attempts to read it from exim
2294 with no configuration file to get the compiled in version, before it
2295 falls back to the previous guessing code."
2296
294520c8
TK
2297TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2298 implementing BATV in an Exim configuration. See NewStuff for the gory
2299 details.
2300
5bd022fe
PH
2301PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2302 Makefile that are specific to HP-UX.
2303
90e9ce59
PH
2304PH/18 If the "use_postmaster" option was set for a recipient callout together
2305 with the "random" option, the postmaster address was used as the MAIL
2306 FROM address for the random test, but not for the subsequent recipient
2307 test. It is now used for both.
2308
5ea81592
PH
2309PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2310 patch removes a few documentation additions to RFC 3028, because the
2311 latest draft now contains them. It adds the new en;ascii-case comparator
2312 and a new error check for 8bit text in MIME parts. Comparator and
2313 require names are now matched exactly. I enabled the subaddress
2314 extension, but it is not well tested yet (read: it works for me)."
2315
c6c2dc1d
PH
2316PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2317 rework some of the code of TK/09 above to avoid the hardwired use of
2318 "%lld" and "long long". Replaced the call to snprintf() with a call to
2319 string_vformat().
2320
fffffe4c
PH
2321PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2322 records point to non-existent hosts", "retry timeout exceeded", and
2323 "retry time not reached for any host after a long failure period".
ca02eafb 2324
9a26b6b2
PH
2325PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2326 experimental DomainKeys support:
2327
2328 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2329 (2) On an error such as an illegally used "control", the wrong name for
2330 the control was given.
2331
2332 These problems did NOT occur unless DomainKeys support was compiled.
2333
4aee0225
PH
2334PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2335
32d668a5
PH
2336PH/24 Added ${if match_ip condition.
2337
8187c3f3
PH
2338PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2339 databases so that it will be absolutely obvious if a crash occurs in the
2340 DB library. This is a regular occurrence (often caused by mis-matched
2341 db.h files).
2342
ff790e47 2343PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2344 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2345 picked up on a user's system that detects such things. There doesn't seem
2346 to be a gcc warning option for this - only an attribute that has to be
2347 put on the function's prototype. It seems that in Fedora Core 4 they have
2348 set this on a number of new functions. No doubt there will be more in due
2349 course.
ff790e47 2350
5417f6d1
PH
2351PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2352 specify a transport. However, if an address that was verified by such a
2353 router was the subject of a callout, Exim crashed because it tried to
2354 read the rcpt_include_affixes from the non-existent transport. Now it
2355 just assumes that the setting of that option is false. This bug was
2356 introduced by 4.51/PH/31.
2357
59cf8544
PH
2358PH/28 Changed -d+all to exclude +memory, because that information is very
2359 rarely of interest, but it makes the output a lot bigger. People tend to
2360 do -d+all out of habit.
2361
e7ad8a65
PH
2362PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2363 code in os-type was giving problems when libc.so lives in lib64, like on
2364 x86_64 Fedora Core.
2365
ade42478
PH
2366PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2367 aren't the modern standard, and it seems that some systems' include files
2368 don't always have them. Exim was already checking for some of the newer
2369 ones like T_AAAA, and defining it itself. I've added checks for all the
2370 record types that Exim uses.
2371
182ad5cf
PH
2372PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2373 not automatically generating a new one, as it is supposed to. This
2374 prevented TLS from working. If the file did exist, but contained invalid
2375 data, a new version was generated, as expected. It was only the case of a
2376 non-existent file that was broken.
2377
b0d9fc80
TK
2378TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2379 with a change in libdomainkeys > 0.64.
2380
2381TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2382 from DNS. If the selector record carries the flag, it now has
2383 precedence over the domain-wide flag.
2384
2385TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2386
47c7a64a
PH
2387PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2388 the use of a port name that isn't defined in /etc/services) occurred, the
2389 message was deferred as in a normal delivery, and thus remained on the
2390 spool, instead of being failed because of the mua_wrapper setting. This
2391 is now fixed, and I tidied up some of the mua_wrapper messages at the
2392 same time.
2393
a388bce4
SC
2394SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2395 the messages in a hash of arrays rather than using individual hashes.
2396 This is a bit cleaner and results in dramatic memory savings, albeit
2397 at a slight CPU cost.
2398
2399SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2400 as requested by Marc Sherman.
2401
2402SC/10 Eximstats: added histograms for user specified patterns as requested
2403 by Marc Sherman.
2404
0793e4ed
SC
2405SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2406
c58b88df
PH
2407PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2408 fopen() in the content-scanning modules that did not already have it.
2409
e7ad8a65 2410
7982096b
PH
2411Exim version 4.51
2412-----------------
2413
1a46a8c5
PH
2414TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2415 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2416
2f079f46 2417TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2418
2419TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2420
2421PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2422 to test Sieve filters that use "vacation".
2423
2424PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2425 that changes the way the GnuTLS parameters are stored in the cache file.
2426 The new format can be generated externally. For backward compatibility,
2427 if the data in the cache doesn't make sense, Exim assumes it has read an
2428 old-format file, and it generates new data and writes a new file. This
2429 means that you can't go back to an older release without removing the
2430 file.
2431
2432PH/03 A redirect router that has both "unseen" and "one_time" set does not
2433 work if there are any delivery delays because "one_time" forces the
2434 parent to be marked "delivered", so its unseen clone is never tried
2435 again. For this reason, Exim now forbids the simultaneous setting of
2436 these two options.
2437
2438PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2439 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2440 entry if you want to know the details. The fix, however, neglected to
2441 consider the case when local delivery batching is involved. The test for
2442 "previously delivered" was not happening when checking to see if an
2443 address could be batched with a previous (undelivered) one; under
2444 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2445 address.
1a46a8c5
PH
2446
2447PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2448 in its include files, and this causes problems building Exim.
2449
2450PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2451 header_syntax) but Exim was just ignoring anything given after a slash.
2452 In particular, this caused confusion with an attempt to use "verify =
2453 reverse_host_lookup/defer_ok". An error is now given when options are
2454 supplied for verify items that do not have them. (Maybe reverse_host_
2455 lookup should have a defer_ok option, but that's a different point.)
2456
2457PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2458 defined by RFC 821) to 2048, because there were problems with some AUTH
2459 commands, and RFC 1869 says the size should be increased for extended
2460 SMTP commands that take arguments.
2461
2462PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2463 Finch).
2464
2465PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2466 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2467
49c2d5ea
PH
2468PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2469 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2470 whatever). Otherwise the password may appear in the log. Following change
2471 PH/42 below, there is no longer a chance of it appearing in a bounce
2472 message.
49c2d5ea 2473
bf759a8b
PH
2474PH/11 Installed exipick version 20050225.0 from John Jetmore.
2475
83364d30
PH
2476PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2477 of its addresses was ever tried. (Bugzilla bug #2.)
2478
7999bbd7
PH
2479PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2480 the result incorrectly in the debug output. (It correctly added a newline
2481 to what was transported.)
2482
7dbf77c9
PH
2483TF/01 Added $received_time.
2484
74e0617f
PH
2485PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2486 commented out examples of how to interface to a virus scanner and to
2487 SpamAssassin. Also added commented examples of av_scanner and
2488 spamd_address settings.
2489
2f079f46
PH
2490PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2491 and controls are allowed in which ACLs. There were a couple of minor
2492 errors. Some of the entries in the conditions table (which is a table of
2493 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2494 negation of where the condition IS allowed.
2495
8c841523
PH
2496PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2497
7766a4f0
PH
2498PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2499 header file does not have a version number, so I've had to invent a new
2500 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2501 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2502 radiusclient), but it was contributed by a Radius user.
2503
8b417f2c
PH
2504PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2505 files or directories, for OpenSSL.
2506
901f42cb
PH
2507PH/19 When an Exim process that is running as root has to create an Exim log
2508 file, it does so in a subprocess that runs as exim:exim so as to get the
2509 ownership right at creation (otherwise, other Exim processes might see
2510 the file with the wrong ownership). There was no test for failure of this
2511 fork() call, which would lead to the process getting stuck as it waited
2512 for a non-existent subprocess. Forks do occasionally fail when resources
2513 run out. I reviewed all the other calls to fork(); they all seem to check
2514 for failure.
2515
f9b9210e
PH
2516PH/20 When checking for unexpected SMTP input at connect time (before writing
2517 the banner), Exim was not dealing correctly with a non-positive return
2518 from the read() function. If the client had disconnected by this time,
2519 the result was a log entry for a synchronization error with an empty
2520 string after "input=" when read() returned zero. If read() returned -1
2521 (an event I could not check), uninitialized data bytes were printed.
2522 There were reports of junk text (parts of files, etc) appearing after
2523 "input=".
2524
54cdb463
PH
2525PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2526
cf00dad6
PH
2527PH/22 Added support for macro redefinition, and (re)definition in between
2528 driver and ACL definitions.
2529
acb1b346
PH
2530PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2531 forgetting to use the resulting value; it was using the unexpanded value.
2532
c5ddb310
PH
2533PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2534 hadn't been configured. The fix is from Juergen Kreileder, who
2535 understands it better than I do:
2536
2537 "Here's what I see happening with three configured cyrus_sasl
2538 authenticators configured (plain, login, cram-md5):
2539
2540 On startup auth_cyrus_sasl_init() gets called for each of these.
2541 This means three calls to sasl_listmech() without a specified mech_list.
2542 => SASL tests which mechs of all available mechs actually work
2543 => three warnings about OTP not working
2544 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2545
2546 With the patch, sasl_listmech() also gets called three times. But now
2547 SASL's mech_list option is set to the server_mech specified in the the
2548 authenticator. Or in other words, the answer from sasl_listmech()
2549 gets limited to just the mech you're testing for (which is different
2550 for each call.)
2551 => the return list contains just 'plain' or 'login', 'cram-md5' or
2552 nothing depending on the value of ob->server_mech.
2553
2554 I've just tested the patch: Authentication still works fine,
2555 unavailable mechs specified in the exim configuration are still
2556 caught, and the auth.log warnings about OTP are gone."
2557
31619da6
PH
2558PH/25 When debugging is enabled, the contents of the command line are added
2559 to the debugging output, even when log_selector=+arguments is not
2560 specified.
2561
bebaf0fc
PH
2562PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2563 answer is "GNU", and only if the return is "GNU/something" is the answer
2564 "Linux".
2565
475fe28a
PH
2566PH/27 $acl_verify_message is now set immediately after the failure of a
2567 verification in an ACL, and so is available in subsequent modifiers. In
2568 particular, the message can be preserved by coding like this:
2569
2570 warn !verify = sender
2571 set acl_m0 = $acl_verify_message
2572
2573 Previously, $acl_verify_message was set only while expanding "message"
2574 and "log_message" when a very denied access.
2575
7e8bec7a
PH
2576PH/28 Modified OS/os.c-Linux with
2577
2578 -#ifndef OS_LOAD_AVERAGE
2579 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2580
2581 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2582 nomenclature these days.)
2583
e4a89c47
PH
2584PH/29 Installed patch from the Sieve maintainer that adds the options
2585 sieve_useraddress and sieve_subaddress to the redirect router.
2586
5ca2a9a1
PH
2587PH/30 In these circumstances:
2588 . Two addresses routed to the same list of hosts;
2589 . First host does not offer TLS;
2590 . First host accepts first address;
2591 . First host gives temporary error to second address;
2592 . Second host offers TLS and a TLS session is established;
2593 . Second host accepts second address.
2594 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2595 and peerdn, if requested) that were in fact used only for the second
2596 address.
7e8bec7a 2597
c688b954
PH
2598PH/31 When doing a callout as part of verifying an address, Exim was not paying
2599 attention to any local part prefix or suffix that was matched by the
2600 router that accepted the address. It now behaves in the same way as it
2601 does for delivery: the affixes are removed from the local part unless
2602 rcpt_include_affixes is set on the transport.
2603
fed77020
PH
2604PH/32 Add the sender address, as F=<...>, to the log line when logging a
2605 timeout during the DATA phase of an incoming message.
2606
7fe1560f
PH
2607PH/33 Sieve envelope tests were broken for match types other than :is. I have
2608 applied a patch sanctioned by the Sieve maintainer.
c688b954 2609
ebb6e6d5
PH
2610PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2611 the uid or gid is negative. A case of a negative gid caused this to be
2612 noticed. The fix allows for either to be negative.
2613
9c4e8f60
PH
2614PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2615 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2616 overlooked.
2617
2618PH/36 The change PH/12 above was broken. Fixed it.
2619
d7174846
PH
2620PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2621 the grounds that routing the same address twice would always produce the
2622 same answer. This might have been true once, but it is certainly no
2623 longer true now. Routing a child address may depend on the previous
2624 routing that produced that child. Some complicated redirection strategies
2625 went wrong when messages had multiple recipients, and made Exim's
2626 behaviour dependent on the order in which the addresses were given.
2627
2628 I have moved the duplicate checking until after the routing is complete.
2629 Exim scans the addresses that are assigned to local and remote
2630 transports, and removes any duplicates. This means that more work will be
2631 done, as duplicates will always all be routed, but duplicates are
2632 presumably rare, so I don't expect this is of any significance.
2633
2634 For deliveries to pipes, files, and autoreplies, the duplicate checking
2635 still happens during the routing process, since they are not going to be
2636 routed further.
2637
cfe75fc3
PH
2638PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2639 It corrects a timeout issue with spamd. This is Ian's comment: "The
2640 background is that sometimes spamd either never reads data from a
2641 connection it has accepted, or it never writes response data. The exiscan
2642 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2643 blindly assumes that writes won't block so it may never time out."
2644
be22d70e
PH
2645PH/39 Allow G after quota size as well as K and M.
2646
0612b098
PH
2647PH/40 The value set for $authenticated_id in an authenticator may not contain
2648 binary zeroes or newlines because the value is written to log lines and
2649 to spool files. There was no check on this. Now the value is run through
2650 the string_printing() function so that such characters are converted to
2651 printable escape sequences.
2652
2e0c1448
PH
2653PH/41 $message_linecount is a new variable that contains the total number of
2654 lines in the message. Compare $body_linecount, which is the count for the
2655 body only.
2656
447d236c
PH
2657PH/42 Exim no longer gives details of delivery errors for specific addresses in
2658 bounce and delay warning messages, except in certain special cases, which
2659 are as follows:
2660
2661 (a) An SMTP error message from a remote host;
2662 (b) A message specified in a :fail: redirection;
2663 (c) A message specified in a "fail" command in a system filter;
2664 (d) A message specified in a FAIL return from the queryprogram router;
2665 (e) A message specified by the cannot_route_message router option.
2666
2667 In these cases only, Exim does include the error details in bounce and
2668 warning messages. There are also a few cases where bland messages such
2669 as "unrouteable address" or "local delivery error" are given.
2670
d20976dc
PH
2671PH/43 $value is now also set for the "else" part of a ${run expansion.
2672
f656d135
PH
2673PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2674 being worked on, but at least Exim now implements the latest version to
2675 play with."
2676
2e2a30b4
PH
2677PH/45 In a pipe transport, although a timeout while waiting for the pipe
2678 process to complete was treated as a delivery failure, a timeout while
2679 writing the message to the pipe was logged, but erroneously treated as a
2680 successful delivery. Such timeouts include transport filter timeouts. For
2681 consistency with the overall process timeout, these timeouts are now
2682 treated as errors, giving rise to delivery failures by default. However,
2683 there is now a new Boolean option for the pipe transport called
2684 timeout_defer, which, if set TRUE, converts the failures into defers for
2685 both kinds of timeout. A transport filter timeout is now identified in
2686 the log output.
2687
9176e9f0
PH
2688PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2689 systems where "make" and "gmake" are different, calling "gmake" at top
2690 level broke things. I've arranged for the value of $(MAKE) to be passed
2691 from the Makefile to this script so that it can call the same version of
2692 "make".
2693
7982096b 2694
bbe902f0
PH
2695A note about Exim versions 4.44 and 4.50
2696----------------------------------------
2697
2698Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2699changes of various kinds. As a consequence, a big documentation update was
2700needed. This delayed the release for rather longer than seemed good, especially
2701in the light of a couple of (minor) security issues. Therefore, the changes
2702that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2703release. So 4.44 and 4.50 are in effect two different branches that both start
2704from 4.43.
2705
2706I have left the 4.50 change log unchanged; it contains all the changes since
27074.43. The change log for 4.44 is below; many of its items are identical to
2708those for 4.50. This seems to be the most sensible way to preserve the
2709historical information.
2710
2711
f7b63901 2712Exim version 4.50
495ae4b0
PH
2713-----------------
2714
5fe762f6
PH
2715 1. Minor wording change to the doc/README.SIEVE file.
2716
139059f6 2717 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2718 computation of the current number of files was incorrect.
495ae4b0 2719
7086e875
PH
2720 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2721 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2722 place.
2723
35af9f61
PH
2724 4. Give more explanation in the error message when the command for a transport
2725 filter fails to execute.
2726
b668c215
PH
2727 5. There are several places where Exim runs a non-Exim command in a
2728 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2729 was being done only for the command run by the queryprogram router. It is
2730 now done for all such subprocesses. The other cases are: ${run, transport
2731 filters, and the commands run by the lmtp and pipe transports.
2732
a494b1e1
PH
2733 6. Added CONFIGURE_GROUP build-time option.
2734
2735 7. Some older OS have a limit of 256 on the maximum number of file
2736 descriptors. Exim was using setrlimit() to set 1000 as a large value
2737 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2738 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2739
c5fcb476
PH
2740 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2741 was an oversight, and furthermore, ever since the addition of extra
2742 controls (e.g. 4.43/32), the checks on when to allow different forms of
2743 "control" were broken. There should now be diagnostics for all cases when a
2744 control that does not make sense is encountered.
2745
69358f02
PH
2746 9. Added the /retain_sender option to "control=submission".
2747
5be20824
PH
274810. $recipients is now available in the predata ACL (oversight).
2749
eb2c0248
PH
275011. Tidy the search cache before the fork to do a delivery from a message
2751 received from the command line. Otherwise the child will trigger a lookup
2752 failure and thereby defer the delivery if it tries to use (for example) a
2753 cached ldap connection that the parent has called unbind on.
2754
2a3eea10
PH
275512. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2756 of $address_data from the recipient verification was clobbered by the
2757 sender verification.
2758
275913. The value of address_data from a sender verification is now available in
2760 $sender_address_data in subsequent conditions in the ACL statement.
2761
23c7ff99
PH
276214. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2763
4deaf07d
PH
276415. Added a new option "connect=<time>" to callout options, to set a different
2765 connection timeout.
2766
926e1192
PH
276716. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2768 was its contents. (It was OK if the option was not defined at all.)
2769
650edc6f
PH
277017. A "Completed" log line is now written for messages that are removed from
2771 the spool by the -Mrm option.
2772
2c7db3f5
PH
277318. New variables $sender_verify_failure and $recipient_verify_failure contain
2774 information about exactly what failed.
2775
3d235903
PH
277619. Added -dd to debug only the daemon process.
2777
7c7ad977
PH
277820. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2779 handles timeouts, both on the server side and network timeouts. Renamed the
2780 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2781
981756db
PH
278221. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2783 It is now set to "smtps".
2784
d4eb88df
PH
278522. $host_address is now set to the target address during the checking of
2786 ignore_target_hosts.
2787
278823. When checking ignore_target_hosts for an ipliteral router, no host name was
2789 being passed; this would have caused $sender_host_name to have been used if
2790 matching the list had actually called for a host name (not very likely,
2791 since this list is usually IP addresses). A host name is now passed as
2792 "[x.x.x.x]".
2793
7d468ab8
PH
279424. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2795 code that specifies a non-restarting handler (typically sigaction() in
2796 modern systems) in an attempt to fix a rare and obscure crash bug.
2797
279825. Narrowed the window for a race in the daemon that could cause it to ignore
2799 SIGCHLD signals. This is not a major problem, because they are used only to
2800 wake it up if nothing else does.
2801
62c0818f
PH
280226. A malformed maildirsize file could cause Exim to calculate negative values
2803 for the mailbox size or file count. Odd effects could occur as a result.
2804 The maildirsize information is now recalculated if the size or filecount
2805 end up negative.
2806
26034054
PH
280727. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2808 support for a long time. Removed HAVE_SYS_VFS_H.
2809
af66f652
PH
281028. Installed the latest version of exipick from John Jetmore.
2811
90af77f4
PH
281229. In an address list, if the pattern was not a regular expression, an empty
2813 subject address (from a bounce message) matched only if the pattern was an
2814 empty string. Non-empty patterns were not even tested. This was the wrong
2815 because it is perfectly reasonable to use an empty address as part of a
2816 database query. An empty address is now tested by patterns that are
2817 lookups. However, all the other forms of pattern expect the subject to
2818 contain a local part and a domain, and therefore, for them, an empty
2819 address still always fails if the pattern is not itself empty.
2820
d8ef3577
PH
282130. Exim went into a mad DNS loop when attempting to do a callout where the
2822 host was specified on an smtp transport, and looking it up yielded more
2823 than one IP address.
2824
5cb8cbc6
PH
282531. Re-factored the code for checking spool and log partition space into a
2826 function that finds that data and another that does the check. The former
2827 is then used to implement four new variables: $spool_space, $log_space,
2828 $spool_inodes, and $log_inodes.
2829
14702f5b
PH
283032. The RFC2047 encoding function was originally intended for short strings
2831 such as real names; it was not keeping to the 75-character limit for
2832 encoded words that the RFC imposes. It now respects the limit, and
2833 generates multiple encoded words if necessary. To be on the safe side, I
2834 have increased the buffer size for the ${rfc2047: expansion operator from
2835 1024 to 2048 bytes.
2836
063b1e99
PH
283733. It is now permitted to omit both strings after an "if" condition; if the
2838 condition is true, the result is "true". As before, when the second string
2839 is omitted, a false condition yields an empty string. This makes it less
2840 cumbersome to write custom ACL and router conditions.
2841
652e1b65
PH
284234. Failure to deliver a bounce message always caused it to be frozen, even if
2843 there was an errors_to setting on the router. The errors_to setting is now
2844 respected.
2845
6f0c9a4f
PH
284635. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2847 canonical form (fully expanded) before being placed in
2848 $sender_host_address.
2849
33397d19
PH
285036. The table in the code that translates DNS record types into text (T_A to
2851 "A" for instance) was missing entries for NS and CNAME. It is just possible
2852 that this could have caused confusion if both these types were looked up
2853 for the same domain, because the text type is used as part of Exim's
2854 per-process caching. But the chance of anyone hitting this buglet seems
2855 very small.
2856
7bb56e1f
PH
285737. The dnsdb lookup has been extended in a number of ways.
2858
2859 (1) There is a new type, "zns", which walks up the domain tree until it
2860 finds some nameserver records. It should be used with care.
2861
ea3bc19b
PH
2862 (2) There is a new type, "mxh", which is like "mx" except that it returns
2863 just the host names, not the priorities.
2864
2865 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2866 looked up. The behaviour when one of the lookups defers can be
2867 controlled by a keyword.
7bb56e1f 2868
ea3bc19b 2869 (4) It is now possible to specify the separator character for use when
7bb56e1f 2870 multiple records are returned.
33397d19 2871
0bcb2a0e
PH
287238. The dnslists ACL condition has been extended: it is now possible to supply
2873 a list of IP addresses and/or domains to be looked up in a particular DNS
2874 domain.
2875
2ac0e484
PH
287639. Added log_selector=+queue_time_overall.
2877
4e1fde53
PH
287840. When running the queue in the test harness, wait just a tad after forking a
2879 delivery process, to get repeatability of debugging output.
2880
de365ded
PH
288141. Include certificate and key file names in error message when GnuTLS fails
2882 to set them up, because the GnuTLS error message doesn't include the name
2883 of the failing file when there is a problem reading it.
2884
f05da2e8
PH
288542. Allow both -bf and -bF in the same test run.
2886
d6453af2
PH
288743. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2888
f7b63901
PH
288944. The "Exiscan patch" is now merged into the mainline Exim source.
2890
289145. Sometimes the final signoff response after QUIT could fail to get
2892 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2893 < 0 before doing a fflush(). This bug looks as though it goes back to the
2894 introduction of TLS in release 3.20, but "sometimes" must have been rare
2895 because the tests only now provoked it.
2896
a444213a
PH
289746. Reset the locale to "C" after calling embedded Perl, in case it was changed
2898 (this can affect the format of dates).
2899
0ec020ea
PH
290047. exim_tidydb, when checking for the continued existence of a message for
2901 which it has found a message-specific retry record, was not finding
2902 messages that were in split spool directories. Consequently, it was
2903 deleting retry records that should have stayed in existence.
2904
b1206957
PH
290548. Steve fixed some bugs in eximstats.
2906
290749. The SPA authentication driver was not abandoning authentication and moving
2908 on to the next authenticator when an expansion was forced to fail,
2909 contradicting the general specification for all authenticators. Instead it
2910 was generating a temporary error. It now behaves as specified.
2911
26dd5a95
PH
291250. The default ordering of permitted cipher suites for GnuTLS was pessimal
2913 (the order specifies the preference for clients). The order is now AES256,
2914 AES128, 3DES, ARCFOUR128.
2915
343b2385
PH
291651. Small patch to Sieve code - explicitly set From: when generating an
2917 autoreply.
2918
1c5466b9
PH
291952. Exim crashed if a remote delivery caused a very long error message to be
2920 recorded - for instance if somebody sent an entire SpamAssassin report back
2921 as a large number of 550 error lines. This bug was coincidentally fixed by
2922 increasing the size of one of Exim's internal buffers (big_buffer) that
2923 happened as part of the Exiscan merge. However, to be on the safe side, I
2924 have made the code more robust (and fixed the comments that describe what
2925 is going on).
2926
55ee9ee3
PH
292753. Now that there can be additional text after "Completed" in log lines (if
2928 the queue_time_overall log selector is set), a one-byte patch to exigrep
2929 was needed to allow it to recognize "Completed" as not the last thing in
2930 the line.
2931
d38f8232
PH
293254. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2933 patch that reportedly fixes this has been added. I am not expert enough to
2934 create a test for it. This is what the patch creator wrote:
2935
2936 "I found a little strange behaviour of ldap code when working with
2937 Windows 2003 AD Domain, where users was placed in more than one
2938 Organization Units. When I tried to give exim partial DN, the exit code
2939 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2940 But simultaneously result of request was absolutely normal ldap result,
2941 so I produce this patch..."
2942
3295e65b
PH
2943 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2944 REFERENCE, so I have modified the code to exclude the patch when that macro
2945 is not defined.
2946
7102e136
PH
294755. Some experimental protocols are using DNS PTR records for new purposes. The
2948 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2949 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2950 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2951 CAN-2005-0021
7102e136 2952
3ca0ba97
PH
295356. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2954
c2bcbe20
PH
295557. Double the size of the debug message buffer (to 2048) so that more of very
2956 long debug lines gets shown.
2957
18ce445d
PH
295858. The exicyclog utility now does better if the number of log files to keep
2959 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2960
1f5b4c3d
PH
296159. Two changes related to the smtp_active_hostname option:
2962
2963 (1) $smtp_active_hostname is now available as a variable.
2964 (2) The default for smtp_banner uses $smtp_active_hostname instead
2965 of $primary_hostname.
2966
b975ba52
PH
296760. The host_aton() function is supposed to be passed a string that is known
2968 to be a valid IP address. However, in the case of IPv6 addresses, it was
2969 not checking this. This is a hostage to fortune. Exim now panics and dies
2970 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2971 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2972 components; fortuitously, this particular loophole had already been fixed
2973 by change 4.50/55 above.
2974
2975 If there are any other similar loopholes, the new check in host_aton()
2976 itself should stop them being exploited. The report I received stated that
2977 data on the command line could provoke the exploit when Exim was running as
2978 exim, but did not say which command line option was involved. All I could
2979 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2980 running as the user.
ea3a6f44 2981 CAN-2005-0021
85b87bc2
PH
2982
298361. There was a buffer overflow vulnerability in the SPA authentication code
2984 (which came originally from the Samba project). I have added a test to the
2985 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2986 CAN-2005-0022
b975ba52 2987
17ffcae7
PH
298862. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2989 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2990
d95f9fdb
PH
299163. The daemon start-up calls getloadavg() while still root for those OS that
2992 need the first call to be done as root, but it missed one case: when
2993 deliver_queue_load_max is set with deliver_drop_privilege. This is
2994 necessary for the benefit of the queue runner, because there is no re-exec
2995 when deliver_drop_privilege is set.
2996
86b8287f
PH
299764. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2998 This has been fixed.
2999
60dc5e56
PH
300065. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3001 was in use, was not putting the data itself into the right store pool;
3002 consequently, it could be overwritten for a subsequent message in the same
3003 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3004 the caching.)
3005
533244af
PH
300666. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3007
a5a28604
PH
300867. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3009 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3010 the function were treating the return as a boolean value, which happened to
3011 work because 0=false and not-0=true, but is not correct code.
3012
7e634d24
PH
301368. The host_aton() function was not handling scoped IPv6 addresses (those
3014 with, for example, "%eth0" on the end) correctly.
3015
3e11c26b
PH
301669. Fixed some compiler warnings in acl.c for the bitmaps specified with
3017 negated items (that is, ~something) in unsigned ints. Some compilers
3018 apparently mutter when there is no cast.
3019
6729cf78
PH
302070. If an address verification called from an ACL failed, and did not produce a
3021 user-specific message (i.e. there was only a "system" message), nothing was
3022 put in $acl_verify_message. In this situation, it now puts the system
3023 message there.
3024
00f00ca5
PH
302571. Change 4.23/11 added synchronization checking at the start of an SMTP
3026 session; change 4.31/43 added the unwanted input to the log line - except
3027 that it did not do this in the start of session case. It now does.
3028
c9bdd01c
PH
302972. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3030 This is wrong and can cause the other end to generate a synchronization
3031 error if it is another Exim or anything else that does the synchronization
3032 check. A QUIT command is no longer sent after a timeout.
3033
d43194df
PH
303473. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3035 during host lookups.
3036
fe5b5d0b
PH
303774. The defer_ok option of callout verification was not working if it was used
3038 when verifying addresses in header lines, that is, for this case:
3039
3040 verify = header_sender/callout=defer_ok
3041
76a2d7ba
PH
304275. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3043 those file descriptors could be used for SMTP connections. If anything
3044 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3045 could be sent to the SMTP client, causing chaos. The daemon now opens
3046 stdin, stdout, and stderr to /dev/null when it puts itself into the
3047 background.
3048
304976. Arrange for output from Perl's "warn" command to be written to Exim's main
3050 log by default. The user can override this with suitable Perl magic.
3051
04f7d5b9
PH
305277. The use of log_message on a "discard" ACL verb, which is supposed to add to
3053 the log message when discard triggers, was not working for the DATA ACL or
3054 for the non-SMTP ACL.
3055
bc60667e
PH
305678. Error message wording change in sieve.c.
3057
bb6e88ff
PH
305879. If smtp_accept_max_per_host was set, the number of connections could be
3059 restricted to fewer than expected, because the daemon was trying to set up
3060 a new connection before checking whether the processes handling previous
3061 connections had finished. The check for completed processes is now done
3062 earlier. On busy systems, this bug wouldn't be noticed because something
3063 else would have woken the daemon, and it would have reaped the completed
3064 process earlier.
3065
1e70f85b
PH
306680. If a message was submitted locally by a user whose login name contained one
3067 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3068 It caused a spool format error. I have fixed the spool reading code. A
3069 related problem was that the "from" clause in the Received: line became
3070 illegal because of the space(s). It is now covered by ${quote_local_part.
3071
307281. Included the latest eximstats from Steve (adds average sizes to HTML Top
3073 tables).
3074
4e01f9d6
PH
307582. Updated OS/Makefile-AIX as per message from Mike Meredith.
3076
1ee1cef2
PH
307783. Patch from Sieve maintainer to fix unterminated string problem in
3078 "vacation" handling.
3079
6e2b4ccc
PH
308084. Some minor changes to the Linux configuration files to help with other
3081 OS variants using glibc.
3082
8e669ac1
PH
308385. One more patch for Sieve to update vacation handling to latest spec.
3084
495ae4b0 3085
bbe902f0
PH
3086----------------------------------------------------
3087See the note above about the 4.44 and 4.50 releases.
3088----------------------------------------------------
3089
3090
3091Exim version 4.44
3092-----------------
3093
3094 1. Change 4.43/35 introduced a bug that caused file counts to be
3095 incorrectly computed when quota_filecount was set in an appendfile
3096 transport
3097
3098 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3099 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3100 place.
3101
3102 3. Give more explanation in the error message when the command for a transport
3103 filter fails to execute.
3104
3105 4. There are several places where Exim runs a non-Exim command in a
3106 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3107 was being done only for the command run by the queryprogram router. It is
3108 now done for all such subprocesses. The other cases are: ${run, transport
3109 filters, and the commands run by the lmtp and pipe transports.
3110
3111 5. Some older OS have a limit of 256 on the maximum number of file
3112 descriptors. Exim was using setrlimit() to set 1000 as a large value
3113 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3114 systems. I've change it so that if it can't get 1000, it tries for 256.
3115
3116 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3117 was an oversight, and furthermore, ever since the addition of extra
3118 controls (e.g. 4.43/32), the checks on when to allow different forms of
3119 "control" were broken. There should now be diagnostics for all cases when a
3120 control that does not make sense is encountered.
3121
3122 7. $recipients is now available in the predata ACL (oversight).
3123
3124 8. Tidy the search cache before the fork to do a delivery from a message
3125 received from the command line. Otherwise the child will trigger a lookup
3126 failure and thereby defer the delivery if it tries to use (for example) a
3127 cached ldap connection that the parent has called unbind on.
3128
3129 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3130 of $address_data from the recipient verification was clobbered by the
3131 sender verification.
3132
313310. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3134 was its contents. (It was OK if the option was not defined at all.)
3135
313611. A "Completed" log line is now written for messages that are removed from
3137 the spool by the -Mrm option.
3138
313912. $host_address is now set to the target address during the checking of
3140 ignore_target_hosts.
3141
314213. When checking ignore_target_hosts for an ipliteral router, no host name was
3143 being passed; this would have caused $sender_host_name to have been used if
3144 matching the list had actually called for a host name (not very likely,
3145 since this list is usually IP addresses). A host name is now passed as
3146 "[x.x.x.x]".
3147
314814. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3149 code that specifies a non-restarting handler (typically sigaction() in
3150 modern systems) in an attempt to fix a rare and obscure crash bug.
3151
315215. Narrowed the window for a race in the daemon that could cause it to ignore
3153 SIGCHLD signals. This is not a major problem, because they are used only to
3154 wake it up if nothing else does.
3155
315616. A malformed maildirsize file could cause Exim to calculate negative values
3157 for the mailbox size or file count. Odd effects could occur as a result.
3158 The maildirsize information is now recalculated if the size or filecount
3159 end up negative.
3160
316117. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3162 support for a long time. Removed HAVE_SYS_VFS_H.
3163
ea3a6f44 316418. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3165
316619. Allow an empty sender to be matched against a lookup in an address list.
3167 Previously the only cases considered were a regular expression, or an
3168 empty pattern.
3169
317020. Exim went into a mad DNS lookup loop when doing a callout where the
3171 host was specified on the transport, if the DNS lookup yielded more than
3172 one IP address.
3173
ea3a6f44
NM
317421. The RFC2047 encoding function was originally intended for short strings
3175 such as real names; it was not keeping to the 75-character limit for
3176 encoded words that the RFC imposes. It now respects the limit, and
3177 generates multiple encoded words if necessary. To be on the safe side, I
3178 have increased the buffer size for the ${rfc2047: expansion operator from
3179 1024 to 2048 bytes.
bbe902f0 3180
ea3a6f44
NM
318122. Failure to deliver a bounce message always caused it to be frozen, even if
3182 there was an errors_to setting on the router. The errors_to setting is now
3183 respected.
bbe902f0
PH
3184
318523. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3186 canonical form (fully expanded) before being placed in
3187 $sender_host_address.
3188
318924. Updated eximstats to version 1.33
3190
ea3a6f44
NM
319125. Include certificate and key file names in error message when GnuTLS fails
3192 to set them up, because the GnuTLS error message doesn't include the name
3193 of the failing file when there is a problem reading it.
bbe902f0
PH
3194
319526. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3196 As per change 25.
bbe902f0 3197
ea3a6f44
NM
319827. Reset the locale to "C" after calling embedded Perl, in case it was changed
3199 (this can affect the format of dates).
bbe902f0 3200
ea3a6f44
NM
320128. exim_tidydb, when checking for the continued existence of a message for
3202 which it has found a message-specific retry record, was not finding
3203 messages that were in split spool directories. Consequently, it was
3204 deleting retry records that should have stayed in existence.
bbe902f0
PH
3205
320629. eximstats updated to version 1.35
3207 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3208 1.35 - bugfix such that pie charts by volume are generated correctly
3209
ea3a6f44
NM
321030. The SPA authentication driver was not abandoning authentication and moving
3211 on to the next authenticator when an expansion was forced to fail,
3212 contradicting the general specification for all authenticators. Instead it
3213 was generating a temporary error. It now behaves as specified.
bbe902f0 3214
ea3a6f44
NM
321531. The default ordering of permitted cipher suites for GnuTLS was pessimal
3216 (the order specifies the preference for clients). The order is now AES256,
3217 AES128, 3DES, ARCFOUR128.
bbe902f0 3218
ea3a6f44
NM
321931. Small patch to Sieve code - explicitly set From: when generating an
3220 autoreply.
bbe902f0 3221
ea3a6f44
NM
322232. Exim crashed if a remote delivery caused a very long error message to be
3223 recorded - for instance if somebody sent an entire SpamAssassin report back
3224 as a large number of 550 error lines. This bug was coincidentally fixed by
3225 increasing the size of one of Exim's internal buffers (big_buffer) that
3226 happened as part of the Exiscan merge. However, to be on the safe side, I
3227 have made the code more robust (and fixed the comments that describe what
3228 is going on).
bbe902f0 3229
ea3a6f44
NM
323033. Some experimental protocols are using DNS PTR records for new purposes. The
3231 keys for these records are domain names, not reversed IP addresses. The
3232 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3233 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3234 CAN-2005-0021
3235
ea3a6f44
NM
323634. The host_aton() function is supposed to be passed a string that is known
3237 to be a valid IP address. However, in the case of IPv6 addresses, it was
3238 not checking this. This is a hostage to fortune. Exim now panics and dies
3239 if the condition is not met. A case was found where this could be provoked
3240 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3241 components; fortuitously, this particular loophole had already been fixed
3242 by change 4.50/55 or 4.44/33 above.
3243
3244 If there are any other similar loopholes, the new check in host_aton()
3245 itself should stop them being exploited. The report I received stated that
3246 data on the command line could provoke the exploit when Exim was running as
3247 exim, but did not say which command line option was involved. All I could
3248 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3249 running as the user.
bbe902f0
PH
3250 CAN-2005-0021
3251
ea3a6f44
NM
325235. There was a buffer overflow vulnerability in the SPA authentication code
3253 (which came originally from the Samba project). I have added a test to the
3254 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3255 CAN-2005-0022
3256
ea3a6f44
NM
325736. The daemon start-up calls getloadavg() while still root for those OS that
3258 need the first call to be done as root, but it missed one case: when
3259 deliver_queue_load_max is set with deliver_drop_privilege. This is
3260 necessary for the benefit of the queue runner, because there is no re-exec
3261 when deliver_drop_privilege is set.
bbe902f0 3262
ea3a6f44
NM
326337. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3264 was in use, was not putting the data itself into the right store pool;
3265 consequently, it could be overwritten for a subsequent message in the same
3266 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3267 the caching.)
bbe902f0 3268
ea3a6f44
NM
326938. Sometimes the final signoff response after QUIT could fail to get
3270 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3271 < 0 before doing a fflush(). This bug looks as though it goes back to the
3272 introduction of TLS in release 3.20, but "sometimes" must have been rare
3273 because the tests only now provoked it.
bbe902f0
PH
3274
3275
495ae4b0
PH
3276Exim version 4.43
3277-----------------
3278
3279 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3280 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3281 Now it returns an integer. A number of calls were still expecting a T/F
3282 return. Fortuitously, in all cases, the tests worked in OK situations,
3283 which is the norm. However, things would have gone wrong on any write
3284 failures on the smtp file descriptor. This function is used when sending
3285 messages over SMTP and also when doing verify callouts.
3286
3287 2. When Exim is called to do synchronous delivery of a locally submitted
3288 message (the -odf or -odi options), it no longer closes stderr before doing
3289 the delivery.
3290
3291 3. Implemented the mua_wrapper option.
3292
3293 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3294
3295 5. Implemented the functions header_remove(), header_testname(),
3296 header_add_at_position(), and receive_remove_recipient(), and exported them
3297 to local_scan().
3298
3299 6. If an ACL "warn" statement specified the addition of headers, Exim already
3300 inserted X-ACL-Warn: at the start if there was no header name. However, it
3301 was not making this test for the second and subsequent header lines if
3302 there were newlines in the string. This meant that an invalid header could
3303 be inserted if Exim was badly configured.
3304
3305 7. Allow an ACL "warn" statement to add header lines at the start or after all
3306 the Received: headers, as well as at the end.
3307
3308 8. Added the rcpt_4xx retry error code.
3309
3310 9. Added postmaster_mailfrom=xxx to callout verification option.
3311
331210. Added mailfrom=xxxx to the callout verification option, for verify=
3313 header_sender only.
3314
331511. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3316 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3317
331812. Inserted some casts to stop certain compilers warning when using pointer
3319 differences as field lengths or precisions in printf-type calls (mostly
3320 affecting debugging statements).
3321
332213. Added optional readline() support for -be (dynamically loaded).
3323
332414. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3325 same clock tick as a message's arrival, so that its received time was the
3326 same as the "first fail" time on the retry record, and that message
3327 remained on the queue past the ultimate address timeout, every queue runner
3328 would try a delivery (because it was past the ultimate address timeout) but
3329 after another failure, the ultimate address timeout, which should have then
3330 bounced the address, did not kick in. This was a "< instead of <=" error;
3331 in most cases the first failure would have been in the next clock tick
3332 after the received time, and all would be well.
3333
333415. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3335 being recognized when the domain list was tested by the match_domain
3336 condition in an expansion string.
3337
333816. Added the ${str2b64: operator.
3339
334017. Exim was always calling setrlimit() to set a large limit for the number of
3341 processes, without checking whether the existing limit was already
3342 adequate. (It did check for the limit on file descriptors.) Furthermore,
3343 errors from getrlimit() and setrlimit() were being ignored. Now they are
3344 logged to the main and panic logs, but Exim does carry on, to try to do its
3345 job under whatever limits there are.
3346
334718. Imported PCRE 5.0.
3348
334919. Trivial typo in log message " temporarily refused connection" (the leading
3350 space).
3351
335220. If the log selector return_path_on_delivery was set and an address was
3353 redirected to /dev/null, the delivery process crashed because it assumed
3354 that a return path would always be set for a "successful" delivery. In this
3355 case, the whole delivery is bypassed as an optimization, and therefore no
3356 return path is set.
3357
335821. Internal re-arrangement: the function for sending a challenge and reading
3359 a response while authentication was assuming a zero-terminated challenge
3360 string. It's now changed to take a pointer and a length, to allow for
3361 binary data in such strings.
3362
336322. Added the cyrus_sasl authenticator (code supplied by MBM).
3364
336523. Exim was not respecting finduser_retries when seeking the login of the
3366 uid under which it was called; it was always trying 10 times. (The default
3367 setting of finduser_retries is zero.) Also, it was sleeping after the final
3368 failure, which is pointless.
3369
337024. Implemented tls_on_connect_ports.
3371
337225. Implemented acl_smtp_predata.
3373
337426. If the domain in control=submission is set empty, Exim assumes that the
3375 authenticated id is a complete email address when it generates From: or
3376 Sender: header lines.
3377
337827. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3379 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3380 chown and chgrp in /bin and hostname in /usr/bin.
3381
338228. Exim was keeping the "process log" file open after each use, just as it
3383 does for the main log. This opens the possibility of it remaining open for
3384 long periods when the USR1 signal hits a daemon. Occasional processlog
3385 errors were reported, that could have been caused by this. Anyway, it seems
3386 much more sensible not to leave this file open at all, so that is what now
3387 happens.
3388
338929. The long-running daemon process does not normally write to the log once it
3390 has entered its main loop, and it closes the log before doing so. This is
3391 so that log files can straightforwardly be renamed and moved. However,
3392 there are a couple of unusual error situations where the daemon does write
3393 log entries, and I had neglected to close the log afterwards.
3394
339530. The text of an SMTP error response that was received during a remote
3396 delivery was being truncated at 512 bytes. This is too short for some of
3397 the long messages that one sometimes sees. I've increased the limit to
3398 1024.
3399
340031. It is now possible to make retry rules that apply only when a message has a
3401 specific sender, in particular, an empty sender.
3402
340332. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3404 it possible to be selective about when SMTP synchronization is enforced.
3405
340633. Added "control = caseful_local_part" and "control = "caselower_local_part".
3407
340832. Implemented hosts_connection_nolog.
3409
341033. Added an ACL for QUIT.
3411
341234. Setting "delay_warning=" to disable warnings was not working; it gave a
3413 syntax error.
3414
341535. Added mailbox_size and mailbox_filecount to appendfile.
3416
341736. Added control = no_multiline_responses to ACLs.
3418
341937. There was a bug in the logic of the code that waits for the clock to tick
3420 in the case where the clock went backwards by a substantial amount such
3421 that the microsecond fraction of "now" was more than the microsecond
3422 fraction of "then" (but the whole seconds number was less).
3423
342438. Added support for the libradius Radius client library this is found on
3425 FreeBSD (previously only the radiusclient library was supported).
3426
3427
3428Exim version 4.42