Also ${eval:x % 0} fixed to not SIGFPE.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
5dc43717 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.632 2010/06/12 15:21:25 jetmore Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
10906672
PP
6Exim version 4.76
7-----------------
8
9PP/01 The new ldap_require_cert option would segfault if used. Fixed.
10
754a0503
PP
11PP/02 Harmonised TLS library version reporting; only show if debugging.
12 Layout now matches that introduced for other libraries in 4.74 PP/03.
13
c0c7b2da
PP
14PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
15
e97d1f08
PP
16PP/04 New "dns_use_edns0" global option.
17
084c1d8c
PP
18PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
19 Bugzilla 1098.
20
4e7ee012
PP
21PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
22 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 23
54e7ce4a
PP
24PP/07 Catch divide-by-zero in ${eval:...}.
25 Fixes bugzilla 1102.
26
10906672 27
aa097c4c
NM
28Exim version 4.75
29-----------------
30
4c9ef03a 31NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
32 Bugzilla 1073
33
7f3d9eff
TF
34TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
35 This fixes portability to compilers other than gcc, notably
36 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
37
159f52d2
TF
38TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
39 makefiles for portability to HP-UX and POSIX correctness.
40
0cc9542a
PP
41PP/01 Permit LOOKUP_foo enabling on the make command-line.
42 Also via indented variable definition in the Makefile.
43 (Debugging by Oliver Heesakkers).
44
f7274286
PP
45PP/02 Restore caching of spamd results with expanded spamd_address.
46 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
47
7b797365
PP
48PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
49 Improves build reliability. Fix from: Frank Elsner
50
caacae52
NM
51NM/02 Fix wide character breakage in the rfc2047 coding
52 Fixes bug 1064. Patch from Andrey N. Oktyabrski
53
09dcaba9
NM
54NM/03 Allow underscore in dnslist lookups
55 Fixes bug 1026. Patch from Graeme Fowler
56
bc19a55b
PP
57PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
58 Code patches from Adam Ciarcinski of NetBSD.
caacae52 59
bd4c9759
NM
60NM/04 Fixed exiqgrep to cope with mailq missing size issue
61 Fixes bug 943.
62
b72aab72
PP
63PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
64 is logged, to avoid truncation. Patch from John Horne.
65
2fe76745
PP
66PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
67 Patch from Jakob Hirsch.
68
76aa570c
PP
69PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
70 SQL string expansion failure details.
71 Patch from Andrey Oktyabrski.
72
f1e5fef5
PP
73PP/08 Bugzilla 486: implement %M datestamping in log filenames.
74 Patch from Simon Arlott.
75
4d805ee9
PP
76PP/09 New lookups functionality failed to compile on old gcc which rejects
77 extern declarations in function scope.
78 Patch from Oliver Fleischmann
79
cd59ab18
PP
80PP/10 Use sig_atomic_t for flags set from signal handlers.
81 Check getgroups() return and improve debugging.
82 Fixed developed for diagnosis in bug 927 (which turned out to be
83 a kernel bug).
84
332f5cf3
PP
85PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
86 Patch from Mark Zealey.
87
29cfeb94
PP
88PP/12 Bugzilla 1056: Improved spamd server selection.
89 Patch from Mark Zealey.
90
660242ad
PP
91PP/13 Bugzilla 1086: Deal with maildir quota file races.
92 Based on patch from Heiko Schlittermann.
93
bc4bc4c5
PP
94PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
95 Patch from Uwe Doering, sign-off by Michael Haardt.
96
2e64baa9
NM
97NM/05 Fix to spam.c to accommodate older gcc versions which dislike
98 variable declaration deep within a block. Bug and patch from
99 Dennis Davis.
100
bddd7526
PP
101PP/15 lookups-Makefile IRIX compatibilty coercion.
102
6bac1a9a
PP
103PP/16 Make DISABLE_DKIM build knob functional.
104
552193f0
NM
105NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
106 Patch by Simon Arlott
baeee2c1 107
1b587e48
TF
108TF/03 Fix valgrind.h portability to C89 compilers that do not support
109 variable argument macros. Our copy now differs from upstream.
110
aa097c4c 111
8c07b69f
TF
112Exim version 4.74
113-----------------
114
115TF/01 Failure to get a lock on a hints database can have serious
116 consequences so log it to the panic log.
117
c0ea85ab
TF
118TF/02 Log LMTP confirmation messages in the same way as SMTP,
119 controlled using the smtp_confirmation log selector.
120
0761d44e
TF
121TF/03 Include the error message when we fail to unlink a spool file.
122
0a349494
PP
123DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
124 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
125 for maintaining out-of-tree patches for some time.
126
127PP/01 Bugzilla 139: Documentation and portability issues.
128 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
129 Handle per-OS dynamic-module compilation flags.
130
fea24b2e
PP
131PP/02 Let /dev/null have normal permissions.
132 The 4.73 fixes were a little too stringent and complained about the
133 permissions on /dev/null. Exempt it from some checks.
134 Reported by Andreas M. Kirchwitz.
135
6545de78
PP
136PP/03 Report version information for many libraries, including
137 Exim version information for dynamically loaded libraries. Created
138 version.h, now support a version extension string for distributors
139 who patch heavily. Dynamic module ABI change.
140
1670ef10
PP
141PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
142 privilege escalation vulnerability whereby the Exim run-time user
143 can cause root to append content of the attacker's choosing to
144 arbitrary files.
145
c0886197
PP
146PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
147 (Wolfgang Breyha)
148
b7487bce
PP
149PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
150 If dropping privileges for untrusted macros, we disabled normal logging
151 on the basis that it would fail; for the Exim run-time user, this is not
152 the case, and it resulted in successful deliveries going unlogged.
153 Fixed. Reported by Andreas Metzler.
154
8c07b69f 155
97fd1e48 156Exim version 4.73
ed7f7860 157-----------------
97fd1e48
PP
158
159PP/01 Date: & Message-Id: revert to normally being appended to a message,
160 only prepend for the Resent-* case. Fixes regression introduced in
161 Exim 4.70 by NM/22 for Bugzilla 607.
162
6901c596
PP
163PP/02 Include check_rfc2047_length in configure.default because we're seeing
164 increasing numbers of administrators be bitten by this.
165
a8c8d6b5
JJ
166JJ/01 Added DISABLE_DKIM and comment to src/EDITME
167
77bb000f
PP
168PP/03 Bugzilla 994: added openssl_options main configuration option.
169
a29e5231
PP
170PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
171
ec5a0394 172PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 173
55c75993
PP
174PP/06 Adjust NTLM authentication to handle SASL Initial Response.
175
453a6645 176PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
177 without a peer certificate, leading to a segfault because of an
178 assumption that peers always have certificates. Be a little more
453a6645
PP
179 paranoid. Problem reported by Martin Tscholak.
180
8544e77a
PP
181PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
182 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
183 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
184 CL also introduces -bmalware, various -d+acl logging additions and
185 more caution in buffer sizes.
8544e77a 186
83e029d5
PP
187PP/09 Implemented reverse_ip expansion operator.
188
ed7f7860
PP
189PP/10 Bugzilla 937: provide a "debug" ACL control.
190
7d9f747b
PP
191PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
192
4b2241d2
PP
193PP/12 Bugzilla 973: Implement --version.
194
10385c15
PP
195PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
196
dbc4b90d
PP
197PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
198
532be449
PP
199PP/15 Bugzilla 816: support multiple condition rules on Routers.
200
6a8de854 201PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
202 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
203 ignore trailing whitespace.
6a8de854 204
5dc43717
JJ
205JJ/02 prevent non-panic DKIM error from being sent to paniclog
206
207JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
208 "exim" to be used
55c75993 209
3346ab01
PP
210PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
211 Notification from Dr Andrew Aitchison.
212
491fab4c
PP
213PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
214 ExtendedDetectionInfo response format.
215 Notification from John Horne.
216
13eb9497
PP
217PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
218 compatible.
219
220PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
221 XSL and documented dependency on system catalogs, with examples of how
222 it normally works.
223
7f36d675
DW
224DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
225 access.
226
c1d94452
DW
227DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
228 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
229 configuration file which is writeable by the Exim user or group.
230
e2f5dc15
DW
231DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
232 of configuration files to cover files specified with the -C option if
233 they are going to be used with root privileges, not just the default
234 configuration file.
235
cd25e41d
DW
236DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
237 option (effectively making it always true).
238
261dc43e
DW
239DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
240 files to be used while preserving root privileges.
241
fa32850b
DW
242DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
243 that rogue child processes cannot use them.
244
79d4bc3d
PP
245PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
246 run-time user, instead of root.
247
2cfd3221
PP
248PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
249 Exim run-time user without dropping privileges.
250
fb08281f
DW
251DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
252 result string, instead of calling string_vformat() twice with the same
253 arguments.
3346ab01 254
74935b98
DW
255DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
256 for other users. Others should always drop root privileges if they use
257 -C on the command line, even for a whitelisted configure file.
258
90b6341f
DW
259DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
260
57730b52
ML
261NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
262
66581d1e 263
465e92cf
JJ
264Exim version 4.72
265-----------------
266
453a6645
PP
267JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
268 $data_path, and $header_path variables; fixed documentation bugs and
269 typos
465e92cf 270
453a6645
PP
271JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
272 exipick to access non-standard spools, including the "frozen" queue
273 (Finput)
edae0343 274
9bd3e22c
NM
275NM/01 Bugzilla 965: Support mysql stored procedures.
276 Patch from Alain Williams
277
bb576ff7
NM
278NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
279
5a1a5845
NM
280NM/03 Bugzilla 955: Documentation fix for max_rcpts.
281 Patch from Andreas Metzler
282
981a9fad
NM
283NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
284 Patch from Kirill Miazine
285
7fc497ee
NM
286NM/05 Bugzilla 671: Added umask to procmail example.
287
1a41defa
JJ
288JJ/03 installed exipick 20100323.0, fixing doc bug
289
a466095c 290NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 291 directory. Notification and patch from Dan Rosenberg.
a466095c 292
94a6bd0b
NM
293TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
294
295TK/02 Improve log output when DKIM signing operation fails.
296
297MH/01 Treat the transport option dkim_domain as a colon separated
298 list, not as a single string, and sign the message with each element,
299 omitting multiple occurences of the same signer.
300
c1b141a8
NM
301NM/07 Null terminate DKIM strings, Null initialise DKIM variable
302 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 303
b26eacf1 304NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
305 Patch by Simon Arlott
306
179c5980 307PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 308 MBX locking. Notification from Dan Rosenberg.
179c5980 309
9bd3e22c 310
7c6d71af
NM
311Exim version 4.71
312-----------------
313
7d9f747b 314TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 315
f013fb92
NM
316NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
317
0eb8eedd
NM
318NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
319
663ee6d9
NM
320NM/03 Bugzilla 847: Enable DNSDB lookup by default.
321
177ebd9b
NM
322NM/04 Bugzilla 915: Flag broken perl installation during build.
323
7c6d71af 324
210f147e
NM
325Exim version 4.70
326-----------------
327
cdd3bb85 328TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 329 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
330
331TK/02 Write list of recipients to X-Envelope-Sender header when building
332 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 333 Hirsch).
cdd3bb85
TK
334
335TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
336 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 337 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
338
339TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
340 by Mark Daniel Reidel <mr@df.eu>.
341
210f147e
NM
342NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
343 When building exim an external PCRE library is now needed -
344 PCRE is a system library on the majority of modern systems.
345 See entry on PCRE_LIBS in EDITME file.
346
deafd5b3
NM
347NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
348 conversation. Added nologin parameter to request.
7d9f747b 349 Patch contributed by Kirill Miazine.
deafd5b3 350
089793a4
TF
351TF/01 Do not log submission mode rewrites if they do not change the address.
352
5f16ca82
TF
353TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
354
dae9d94e 355NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 356 log files in place. Contributed by Roberto Lima.
dae9d94e 357
7d9f747b 358NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 359
06864c44
TF
360TF/03 Bugzilla 615: When checking the local_parts router precondition
361 after a local_part_suffix or local_part_prefix option, Exim now
362 does not use the address's named list lookup cache, since this
363 contains cached lookups for the whole local part.
364
65a7d8c3 365NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 366 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 367
23510047 368TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 369
7d9f747b 370NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 371
7d8eec3a 372NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 373 Patch provided by Jan Srzednicki.
6c588e74 374
89dec7b6
TF
375TF/05 Leading white space used to be stripped from $spam_report which
376 wrecked the formatting. Now it is preserved.
5f28a6e8 377
a99de90c
TF
378TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
379 that they are available at delivery time.
380
e2803e40
TF
381TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
382
7199e1ee
TF
383TF/08 TLS error reporting now respects the incoming_interface and
384 incoming_port log selectors.
385
e276e04b
TF
386TF/09 Produce a more useful error message if an SMTP transport's hosts
387 setting expands to an empty string.
388
ce552449 389NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 390 Patch provided by Phil Pennock.
ce552449 391
e765a0f1 392NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 393 Patch provided by Richard Godbee.
e765a0f1 394
4f054c63 395NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 396 acl_smtp_notquit, added index entry.
4f054c63 397
7d9f747b
PP
398NM/09 Bugzilla 787: Potential buffer overflow in string_format.
399 Patch provided by Eugene Bujak.
24c929a2 400
7d9f747b
PP
401NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
402 accept(). Patch provided by Maxim Dounin.
cf73943b 403
b52bc06e 404NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 405 Patch provided by Phil Pennock.
b52bc06e 406
447de4b0
NM
407NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
408
4c69d561 409NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 410 Patch provided by Brad "anomie" Jorsch.
4c69d561 411
d5c39246 412NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 413 Patch provided by Dean Brooks.
9b989985 414
0b23848a
TK
415TK/05 Add native DKIM support (does not depend on external libraries).
416
8f3414a1 417NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 418 Patch provided by Graeme Fowler.
e2aacdfd 419
fb6f955d
NM
420NM/16 Bugzilla 851: Documentation example syntax fix.
421
422NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 423
7d9f747b
PP
424NM/18 Bugzilla 894: Fix issue with very long lines including comments in
425 lsearch.
dbb0bf41 426
7d9f747b
PP
427NM/19 Bugzilla 745: TLS version reporting.
428 Patch provided by Phil Pennock.
f3766eb5 429
7d9f747b
PP
430NM/20 Bugzilla 167: bool: condition support.
431 Patch provided by Phil Pennock.
36f12725 432
7d9f747b
PP
433NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
434 clients. Patch provided by Phil Pennock.
e6060e2c 435
7d9f747b
PP
436NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
437 Patch provided by Brad "anomie" Jorsch.
5eb690a1 438
7d9f747b
PP
439NM/23 Bugzilla 687: Fix misparses in eximstats.
440 Patch provided by Heiko Schlittermann.
d5c13d66 441
7d9f747b
PP
442NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
443 Patch provided by Heiko Schlittermann.
b2335c0b 444
7d9f747b 445NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 446 plus update to original patch.
f4cd9433 447
7d9f747b 448NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 449
7d9f747b
PP
450NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
451 Patch provided by David Brownlee.
8dc71ab3 452
7d9f747b 453NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 454
7d9f747b 455NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 456
7d9f747b 457NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 458
7d9f747b 459NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 460
17792b53 461NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 462 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 463
7d9f747b
PP
464NM/33 Bugzilla 898: Transport filter timeout fix.
465 Patch by Todd Rinaldo.
52383f8f 466
7d9f747b
PP
467NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
468 Patch by Serge Demonchaux.
5ca6d115 469
7d9f747b
PP
470NM/35 Bugzilla 39: Base64 decode bug fixes.
471 Patch by Jakob Hirsch.
baee9eee 472
7d9f747b 473NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 474
7d9f747b 475NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 476
7d9f747b 477NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 478
7d9f747b 479NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 480
deafd5b3 481
47db1125
NM
482Exim version 4.69
483-----------------
484
4b3504d0
TK
485TK/01 Add preliminary DKIM support. Currently requires a forked version of
486 ALT-N's libdkim that I have put here:
487 http://duncanthrax.net/exim-experimental/
488
489 Note to Michael Haardt: I had to rename some vars in sieve.c. They
490 were called 'true' and it seems that C99 defines that as a reserved
491 keyword to be used with 'bool' variable types. That means you could
492 not include C99-style headers which use bools without triggering
493 build errors in sieve.c.
494
81ea09ca
NM
495NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
496 as mailq or other aliases. Changed the --help handling significantly
497 to do whats expected. exim_usage() emits usage/help information.
498
f13cddcb
SC
499SC/01 Added the -bylocaldomain option to eximstats.
500
7d9f747b 501NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 502
7d9f747b 503NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 504
7d9f747b 505NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
506
507
eb4c0de6
PH
508Exim version 4.68
509-----------------
510
511PH/01 Another patch from the Sieve maintainer.
512
6a3bceb1
PH
513PH/02 When an IPv6 address is converted to a string for single-key lookup
514 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
515 dots are used instead of colons so that keys in lsearch files need not
516 contain colons. This was done some time before quoting was made available
517 in lsearch files. However, iplsearch files do require colons in IPv6 keys
518 (notated using the quote facility) so as to distinguish them from IPv4
519 keys. This meant that lookups for IP addresses in host lists did not work
520 for iplsearch lookups.
521
522 This has been fixed by arranging for IPv6 addresses to be expressed with
523 colons if the lookup type is iplsearch. This is not incompatible, because
524 previously such lookups could never work.
525
526 The situation is now rather anomolous, since one *can* have colons in
527 ordinary lsearch keys. However, making the change in all cases is
528 incompatible and would probably break a number of configurations.
529
2e30fa9d
TK
530TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
531 version.
532
0806a9c5
MH
533MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
534 conversion specification without a maximum field width, thereby enabling
535 a rogue spamd server to cause a buffer overflow. While nobody in their
536 right mind would setup Exim to query an untrusted spamd server, an
537 attacker that gains access to a server running spamd could potentially
538 exploit this vulnerability to run arbitrary code as the Exim user.
539
ae276964
TK
540TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
541 $primary_hostname instead of what libspf2 thinks the hosts name is.
542
0f2cbd1b
MH
543MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
544 a directory entry by the name of the lookup key. Previously, if a
545 symlink pointed to a non-existing file or a file in a directory that
546 Exim lacked permissions to read, a lookup for a key matching that
547 symlink would fail. Now it is enough that a matching directory entry
548 exists, symlink or not. (Bugzilla 503.)
549
2b85bce7
PH
550PH/03 The body_linecount and body_zerocount variables are now exported in the
551 local_scan API.
552
93655c46
PH
553PH/04 Added the $dnslist_matched variable.
554
6c512171
PH
555PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
556 This means they are set thereafter only if the connection becomes
557 encrypted.
558
559PH/06 Added the client_condition to authenticators so that some can be skipped
560 by clients under certain conditions.
561
aa6dc513
PH
562PH/07 The error message for a badly-placed control=no_multiline_responses left
563 "_responses" off the end of the name.
564
a96603a0
PH
565PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
566
8f240103
PH
567PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
568 (without spaces) instead of just copying the configuration text.
569
570PH/10 Added the /noupdate option to the ratelimit ACL condition.
571
d677b2f2
PH
572PH/11 Added $max_received_linelength.
573
d52120f2
PH
574PH/12 Added +ignore_defer and +include_defer to host lists.
575
64f2600a
PH
576PH/13 Installed PCRE version 7.2. This needed some changes because of the new
577 way in which PCRE > 7.0 is built.
578
8669f003
PH
579PH/14 Implemented queue_only_load_latch.
580
a4dc33a8
PH
581PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
582 MAIL command. The effect was to mangle the value on 64-bit systems.
583
d6a60c0f
PH
584PH/16 Another patch from the Sieve maintainer.
585
8f128379
PH
586PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
587
8932dffe
PH
588PH/18 If a system quota error occurred while trying to create the file for
589 a maildir delivery, the message "Mailbox is full" was not appended to the
590 bounce if the delivery eventually timed out. Change 4.67/27 below applied
591 only to a quota excession during the actual writing of the file.
d6a60c0f 592
ddea74fa 593PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
594 characters?) which causes problems in log lines. The DN values are now
595 passed through string_printing() before being added to log lines.
596
ddea74fa 597PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
598 and InterBase are left for another time.)
599
ddea74fa
PH
600PH/21 Added message_body_newlines option.
601
ce9f225c
PH
602PH/22 Guard against possible overflow in moan_check_errorcopy().
603
19897d52
PH
604PH/23 POSIX allows open() to be a macro; guard against that.
605
bc64a74d
PH
606PH/24 If the recipient of an error message contained an @ in the local part
607 (suitably quoted, of course), incorrect values were put in $domain and
608 $local_part during the evaluation of errors_copy.
609
eb4c0de6 610
b4ed4da0
PH
611Exim version 4.67
612-----------------
613
22ad45c9
MH
614MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
615 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
616 Jan Srzednicki.
617
b4ed4da0
PH
618PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
619 issue a MAIL command.
620
431b7361
PH
621PH/02 In an ACL statement such as
622
623 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
624
625 if a client was not listed at all, or was listed with a value other than
626 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
627 the condition was not true (as it should be), so access was not denied.
628 The bug was that the ! inversion was incorrectly passed on to the second
629 item. This has been fixed.
630
631PH/03 Added additional dnslists conditions == and =& which are different from
632 = and & when the dns lookup returns more than one IP address.
633
83da1223
PH
634PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
635 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
636
54fc8428
PH
637PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
638 FSYNC, which compiles an option called disable_fsync that allows for
639 bypassing fsync(). The documentation is heavily laced with warnings.
640
34c5e8dd
SC
641SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
642
bbe15da8
PH
643PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
644 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
645 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
646 including adding "make clean"; (3) Added -fPIC when compiling the test
647 dynamically loaded module, to get rid of a warning.
648
0e8a9471
MH
649MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
650 message fails, move_frozen_messages = true and ignore_bounce_errors_after
651 = 0s. The bug is otherwise harmless.
652
f0872424
PH
653PH/07 There was a bug in the dovecot authenticator such that the value of
654 $auth1 could be overwritten, and so not correctly preserved, after a
655 successful authentication. This usually meant that the value preserved by
656 the server_setid option was incorrect.
657
b01dd148
PH
658PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
659
6bf342e1
PH
660PH/09 Installed PCRE release 7.0.
661
273f34d0
PH
662PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
663 run for batched SMTP input. It is now run at the start of every message
664 in the batch. While fixing this I discovered that the process information
665 (output by running exiwhat) was not always getting set for -bs and -bS
666 input. This is fixed, and it now also says "batched" for BSMTP.
667
cf8b11a5
PH
668PH/11 Added control=no_pipelining.
669
41c7c167
PH
670PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
671 patch, slightly modified), and move the expansion of helo_data till after
672 the connection is made in the smtp transport (so it can use these
673 values).
674
9c57cbc0
PH
675PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
676
f3f065bb
PH
677PH/14 Added log_selector = +pid.
678
047bdd8c
PH
679PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
680
0ce9abe6
PH
681PH/16 Add ${if forany and ${if forall.
682
0e22dfd1
PH
683PH/17 Added dsn_from option to vary the From: line in DSNs.
684
4c590bd1
PH
685PH/18 Flush SMTP output before performing a callout, unless control =
686 no_callout_flush is set.
687
09945f1e
PH
688PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
689 was true (the default) a successful delivery failed to delete the retry
690 item, thus causing premature timeout of the address. The bug is now
691 fixed.
692
c51b8e75
PH
693PH/20 Added hosts_avoid_pipelining to the smtp transport.
694
e28326d8
PH
695PH/21 Long custom messages for fakedefer and fakereject are now split up
696 into multiline reponses in the same way that messages for "deny" and
697 other ACL rejections are.
698
75b1493f
PH
699PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
700 with slight modification.
701
7c5214ec
PH
702PH/23 Applied sieve patches from the maintainer "tracking the latest notify
703 draft, changing the syntax and factoring some duplicate code".
704
4311097e
PH
705PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
706 for deliveries of the second and subsequent messages over the same SMTP
707 connection.
708
29f89cad
PH
709PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
710 ${reduce, with only minor "tidies".
711
5e687460
SC
712SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
713
c3611384
PH
714PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
715 expansion side effects.
716
5a11a7b4
PH
717PH/27 When a message times out after an over-quota error from an Exim-imposed
718 quota, the bounce message says "mailbox is full". This message was not
719 being given when it was a system quota that was exceeded. It now should
720 be the same.
721
0e20aff9
MH
722MH/03 Made $recipients available in local_scan(). local_scan() already has
723 better access to the recipient list through recipients_list[], but
724 $recipients can be useful in postmaster-provided expansion strings.
725
ca86f471
PH
726PH/28 The $smtp_command and $smtp_command_argument variables were not correct
727 in the case of a MAIL command with additional options following the
728 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
729 were accidentally chopped off.
730
a14e5636
PH
731PH/29 SMTP synchronization checks are implemented when a command is read -
732 there is a check that no more input is waiting when there shouldn't be
733 any. However, for some commands, a delay in an ACL can mean that it is
734 some time before the response is written. In this time, more input might
735 arrive, invalidly. So now there are extra checks after an ACL has run for
736 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
737 pipelining has not been advertised.
738
ec95d1a6
PH
739PH/30 MH's patch to allow iscntrl() characters to be list separators.
740
42855d71
PH
741PH/31 Unlike :fail:, a custom message specified with :defer: was not being
742 returned in the SMTP response when smtp_return_error_details was false.
743 This has been fixed.
744
57c2c631
PH
745PH/32 Change the Dovecot authenticator to use read() and write() on the socket
746 instead of the C I/O that was originally supplied, because problems were
747 reported on Solaris.
748
58c01c94
PH
749PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
750 Exim which did not show up earlier: it was assuming that a call to
751 SSL_CTX_set_info_callback() might give an error value. In fact, there is
752 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
753 was a macro that became an assignment, so it seemed to work. This has
754 changed to a proper function call with a void return, hence the compile
755 error. Exim's code has been fixed.
756
dee5a20a
PH
757PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
758 cpus.
759
d2ee6114
PH
760PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
761
b2d5182b
PH
762PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
763
79749a79
PH
764PH/37 If a message is not accepted after it has had an id assigned (e.g.
765 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
766 "Completed" line in the log. When some messages of this type were
767 selected by exigrep, they were listed as "not completed". Others were
768 picked up by some special patterns. I have improved the selection
769 criteria to be more general.
79749a79 770
c456d9bb
PH
771PH/38 The host_find_failed option in the manualroute router can now be set
772 to "ignore", to completely ignore a host whose IP address cannot be
773 found. If all hosts are ignored, the behaviour is controlled by the new
774 host_all_ignored option.
775
cd9868ec
PH
776PH/39 In a list of hosts for manualroute, if one item (either because of multi-
777 homing or because of multiple MX records with /mx) generated more than
778 one IP address, and the following item turned out to be the local host,
779 all the secondary addresses of the first item were incorrectly removed
780 from the list, along with the local host and any following hosts (which
781 is what is supposed to happen).
782
ebeaf996
PH
783PH/40 When Exim receives a message, it writes the login name, uid, and gid of
784 whoever called Exim into the -H file. In the case of the daemon it was
785 behaving confusingly. When first started, it used values for whoever
786 started the daemon, but after a SIGHUP it used the Exim user (because it
787 calls itself on a restart). I have changed the code so that it now always
788 uses the Exim user.
789
2679d413
PH
790PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
791 message are rejected with the same error (e.g. no authentication or bad
792 sender address), and a DATA command is nevertheless sent (as can happen
793 with PIPELINING or a stupid MUA), the error message that was given to the
794 RCPT commands is included in the rejection of the DATA command. This is
795 intended to be helpful for MUAs that show only the final error to their
796 users.
797
84024b72
PH
798PH/42 Another patch from the Sieve maintainer.
799
8005d38e
SC
800SC/02 Eximstats - Differentiate between permanent and temporary rejects.
801 Eximstats - Fixed some broken HTML links and added missing column headers
802 (Jez Hancock).
803 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
804 columns for Rejects, Temp Rejects, Ham, and Spam rows.
805
3298c6c6
SC
806SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
807
a43a27c5
PH
808PH/43 Yet another patch from the Sieve maintainer.
809
58eb016e 810PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
811 the response to the final '.' that terminates a message, but only in the
812 case where the client has not sent further data following the '.'
813 (unfortunately, this is allowed). However, in many cases there won't be
814 any further data because there won't be any more messages to send. A call
815 to select() can be used: if it shows that the input is "ready", there is
816 either input waiting, or the socket has been closed. An attempt to read
817 the next input character can distinguish the two cases. Previously, Exim
58eb016e 818 would have sent an OK response which the client would never have see.
563b63fa
PH
819 This could lead to message repetition. This fix should cure that, at
820 least in a lot of common cases.
58eb016e 821
b43a74ea
PH
822PH/45 Do not advertise STARTTLS in response to HELP unless it would be
823 advertised in response to EHLO.
824
b4ed4da0 825
5dd1517f
PH
826Exim version 4.66
827-----------------
828
829PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
830 fixed by 4.65/MH/01 (is this a record?) are fixed:
831
832 (i) An empty string was always treated as zero by the numeric comparison
833 operators. This behaviour has been restored.
834
835 (ii) It is documented that the numeric comparison operators always treat
836 their arguments as decimal numbers. This was broken in that numbers
837 starting with 0 were being interpreted as octal.
838
839 While fixing these problems I realized that there was another issue that
840 hadn't been noticed. Values of message_size_limit (both the global option
841 and the transport option) were treated as octal if they started with 0.
842 The documentation was vague. These values are now always treated as
843 decimal, and I will make that clear in the documentation.
844
845
93cfa765
TK
846Exim version 4.65
847-----------------
848
849TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
850 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
851 versions. (#438)
852
d6066548
MH
853MH/01 Don't check that the operands of numeric comparison operators are
854 integers when their expansion is in "skipping" mode (fixes bug
855 introduced by 4.64-PH/07).
856
4362ff0d
PH
857PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
858 child addresses, Exim now panics and dies. Previously, because the count
859 is held in a short int, deliveries were likely to be lost. As such a
860 large number of recipients for a single message is ridiculous
861 (performance will be very, very poor), I have chosen to impose a limit
862 rather than extend the field.
863
93cfa765 864
944e9e9c
TF
865Exim version 4.64
866-----------------
aa41d2de 867
21d74bd9
TK
868TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
869 leftover -K file (the existence of which was triggered by #402).
870 While we were at it, introduced process PID as part of the -K
871 filename. This should rule out race conditions when creating
872 these files.
873
874TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
875 processing considerably. Previous code took too long for large mails,
876 triggering a timeout which in turn triggers #401.
877
878TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
879 in the DK code in transports.c. sendfile() is not really portable,
880 hence the _LINUX specificness.
944e9e9c
TF
881
882TF/01 In the add_headers option to the mail command in an Exim filter,
883 there was a bug that Exim would claim a syntax error in any
884 header after the first one which had an odd number of characters
885 in the field name.
886
2b1c6e3a
PH
887PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
888 callout verification, Exim cached a "reject" for the entire domain. This
889 is correct for most verifications, but it is not correct for a recipient
890 verification with use_sender or use_postmaster set, because in that case
891 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
892 case of MAIL FROM:<> rejection from other early rejections (e.g.
893 rejection of HELO). When verifying a recipient using a non-null MAIL
894 address, the cache is ignored if it shows MAIL FROM:<> rejection.
895 Whatever the result of the callout, the value of the domain cache is
896 left unchanged (for any other kind of callout, getting as far as trying
897 RCPT means that the domain itself is ok).
898
1f872c80
PH
899PH/02 Tidied a number of unused variable and signed/unsigned warnings that
900 gcc 4.1.1 threw up.
901
902PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
903 manifest itself as EPIPE rather than ECONNECT. When tidying away a
904 session, the daemon ignores ECONNECT errors and logs others; it now
905 ignores EPIPE as well.
906
d203e649
PH
907PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
908 (quoted-printable decoding).
909
cc2ed8f7 910PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 911 later the small subsequent patch to fix an introduced bug.
f951fd57 912
ddfcd446
PH
913PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
914
d45b1de8
PH
915PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
916
917PH/08 An error is now given if message_size_limit is specified negative.
918
38a0a95f 919PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 920 to be given (somewhat) arbitrary names.
38a0a95f 921
a2405d83
JJ
922JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
923 in 4.64-PH/09.
924
925JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
926 miscellaneous code fixes
927
6ea85e9a
PH
928PH/10 Added the log_reject_target ACL modifier to specify where to log
929 rejections.
930
26da7e20
PH
931PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
932 hostname. This is wrong, because it relates to the incoming message (and
933 probably the interface on which it is arriving) and not to the outgoing
934 callout (which could be using a different interface). This has been
935 changed to use the value of the helo_data option from the smtp transport
936 instead - this is what is used when a message is actually being sent. If
937 there is no remote transport (possible with a router that sets up host
938 addresses), $smtp_active_hostname is used.
6ea85e9a 939
14aa5a05 940PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 941 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
942 (a) The code assumed that strncpy() returns a negative number on buffer
943 overflow, which isn't the case. Replaced with Exim's string_format()
944 function.
945 (b) There were several signed/unsigned issues. I just did the minimum
946 hacking in of casts. There is scope for a larger refactoring.
947 (c) The code used strcasecmp() which is not a standard C function.
948 Replaced with Exim's strcmpic() function.
949 (d) The code set only $1; it now sets $auth1 as well.
950 (e) A simple test gave the error "authentication client didn't specify
951 service in request". It would seem that Dovecot has changed its
952 interface. Fortunately there's a specification; I followed it and
953 changed what the client sends and it appears to be working now.
954
ff75a1f7
PH
955PH/13 Added $message_headers_raw to provide the headers without RFC 2047
956 decoding.
957
e6f6568e
PH
958PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
959 address A is aliased to B and C, where B exists and C does not. Without
960 -v the output is "A verified" because verification stops after a
961 successful redirection if more than one address is generated. However,
962 with -v the child addresses are also verified. Exim was outputting "A
963 failed to verify" and then showing the successful verification for C,
964 with its parentage. It now outputs "B failed to verify", showing B's
965 parentage before showing the successful verification of C.
966
d6f6e0dc
PH
967PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
968 look up a TXT record in a specific list after matching in a combined
969 list.
970
322050c2
PH
971PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
972 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
973 they consult the DNS. I had assumed they would set it the way they
974 wanted; and indeed my experiments on Linux seem to show that in some
975 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
976 To be on the safe side, however, I have now made the interface to
977 host_find_byname() similar to host_find_bydns(), with an argument
978 containing the DNS resolver options. The host_find_byname() function now
979 sets these options at its start, just as host_find_bydns() does. The smtp
980 transport options dns_qualify_single and dns_search_parents are passed to
981 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
982 of host_find_byname() use the default settings of RES_DEFNAMES
983 (qualify_single) but not RES_DNSRCH (search_parents).
984
08955dd3
PH
985PH/17 Applied (a modified version of) Nico Erfurth's patch to make
986 spool_read_header() do less string testing, by means of a preliminary
987 switch on the second character of optional "-foo" lines. (This is
988 overdue, caused by the large number of possibilities that now exist.
989 Originally there were few.) While I was there, I also converted the
990 str(n)cmp tests so they don't re-test the leading "-" and the first
991 character, in the hope this might squeeze out yet more improvement.
992
1eccaa59
PH
993PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
994 flag allowing group syntax was set by the header_syntax check but not
995 turned off, possible causing trouble later; (2) The flag was not being
996 set at all for the header_verify test, causing "group"-style headers to
997 be rejected. I have now set it in this case, and also caused header_
998 verify to ignore an empty address taken from a group. While doing this, I
999 came across some other cases where the code for allowing group syntax
1000 while scanning a header line wasn't quite right (mostly, not resetting
1001 the flag correctly in the right place). These bugs could have caused
1002 trouble for malformed header lines. I hope it is now all correct.
1003
602e59e5
PH
1004PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1005 with the "reply" argument non-NULL. The code, however (which originally
1006 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1007 but it didn't always do it. This confused somebody who was copying the
1008 code for some other use. I have removed all the tests.
1009
411ef850
PH
1010PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1011 feature that was used to support insecure browsers during the U.S. crypto
1012 embargo. It requires special client support, and Exim is probably the
1013 only MTA that supported it -- and would never use it because real RSA is
1014 always available. This code has been removed, because it had the bad
1015 effect of slowing Exim down by computing (never used) parameters for the
1016 RSA_EXPORT functionality.
1017
7befa435
PH
1018PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1019 authenticator to fail if there's a tab character in the incoming data
1020 (there should never be unless someone is messing about, as it's supposed
1021 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1022 if the connection is using TLS or if the remote IP is the same as the
1023 local IP, and the "valid-client-cert option" if a client certificate has
1024 been verified.
1025
48da4259 1026PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1027 authenticators. This can be used for authorization after authentication
1028 succeeds. (In the case of plaintext, it servers for both authentication
1029 and authorization.)
1030
48da4259
PH
1031PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1032 if any retry times were supplied.
1033
d1d5595c
PH
1034PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1035 connection, where there is no client IP address to check. In this
1036 situation, the verify now always succeeds.
1037
0ef732d9
PH
1038PH/25 Applied John Jetmore's -Mset patch.
1039
328895cc
PH
1040PH/26 Added -bem to be like -Mset, but loading a message from a file.
1041
fd700877
PH
1042PH/27 In a string expansion for a processed (not raw) header when multiple
1043 headers of the same name were present, leading whitespace was being
1044 removed from all of them, but trailing whitespace was being removed only
1045 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1046 before concatenation. Completely empty headers in a concatenation (as
1047 before) are ignored.
fd700877 1048
8dce1a6f
PH
1049PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1050 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1051
17af4a17
PH
1052PH/29 [Removed. This was a change that I later backed out, and forgot to
1053 correct the ChangeLog entry (that I had efficiently created) before
1054 committing the later change.]
f6c332bd
PH
1055
1056PH/30 Exim was sometimes attempting to deliver messages that had suffered
1057 address errors (4xx response to RCPT) over the same connection as other
1058 messages routed to the same hosts. Such deliveries are always "forced",
1059 so retry times are not inspected. This resulted in far too many retries
1060 for the affected addresses. The effect occurred only when there were more
1061 hosts than the hosts_max_try setting in the smtp transport when it had
1062 the 4xx errors. Those hosts that it had tried were not added to the list
1063 of hosts for which the message was waiting, so if all were tried, there
1064 was no problem. Two fixes have been applied:
1065
1066 (i) If there are any address or message errors in an SMTP delivery, none
1067 of the hosts (tried or untried) are now added to the list of hosts
1068 for which the message is waiting, so the message should not be a
1069 candidate for sending over the same connection that was used for a
1070 successful delivery of some other message. This seems entirely
1071 reasonable: after all the message is NOT "waiting for some host".
1072 This is so "obvious" that I'm not sure why it wasn't done
1073 previously. Hope I haven't missed anything, but it can't do any
1074 harm, as the worst effect is to miss an optimization.
1075
1076 (ii) If, despite (i), such a delivery is accidentally attempted, the
1077 routing retry time is respected, so at least it doesn't keep
1078 hammering the server.
1079
c1114884
PH
1080PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1081 in ${readsocket because some servers need this prod.
1082
7a0743eb
PH
1083PH/32 Added some extra debug output when updating a wait-xxx database.
1084
0d85fa3f
PH
1085PH/33 The hint "could be header name not terminated by colon", which has been
1086 given for certain expansion errors for a long time, was not being given
1087 for the ${if def:h_colon_omitted{... case.
1088
1bf43b78
PH
1089PH/34 The spec says: "With one important exception, whenever a domain list is
1090 being scanned, $domain contains the subject domain." There was at least
1091 one case where this was not true.
1092
520de300
PH
1093PH/35 The error "getsockname() failed: connection reset by peer" was being
1094 written to the panic log as well as the main log, but it isn't really
1095 panic-worthy as it just means the connection died rather early on. I have
1096 removed the panic log writing for the ECONNRESET error when getsockname()
1097 fails.
1098
48c7f9e2
PH
1099PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1100 runs only) independently of the message's sender address. This meant
1101 that, if the 4xx error was in fact related to the sender, a different
1102 message to the same recipient with a different sender could confuse
1103 things. In particualar, this can happen when sending to a greylisting
1104 server, but other circumstances could also provoke similar problems.
1105 I have changed the default so that the retry time for these errors is now
1106 based a combination of the sender and recipient addresses. This change
1107 can be overridden by setting address_retry_include_sender=false in the
1108 smtp transport.
1109
99ea1c86
PH
1110PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1111 remote server are returned as part of bounce messages. This was not
1112 happening for LMTP over a pipe (the lmtp transport), but now it is the
1113 same for both kinds of LMTP.
1114
a2042e78
PH
1115PH/38 Despite being documented as not happening, Exim was rewriting addresses
1116 in header lines that were in fact CNAMEs. This is no longer the case.
1117
4fbcfc2e
PH
1118PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1119 and queue runs started by the daemon processed all messages. This has
1120 been fixed so that -R and -S can now usefully be given with -q<time>.
1121
aa41d2de
PH
1122PH/40 Import PCRE release 6.7 (fixes some bugs).
1123
af561417
PH
1124PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1125
3cc66b45
PH
1126PH/42 Give an error if -q is specified more than once.
1127
194cc0e4
PH
1128PH/43 Renamed the variables $interface_address and $interface_port as
1129 $received_ip_address and $received_port, to make it clear that these
1130 values apply to message reception, and not to the outgoing interface when
1131 a message is delivered. (The old names remain recognized, of course.)
1132
a401ddaa
PH
1133PH/44 There was no timeout on the connect() call when using a Unix domain
1134 socket in the ${readsocket expansion. There now is.
1135
4e88a19f
PH
1136PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1137 be meaningful with "accept".
1138
d7d7b289
SC
1139SC/01 Eximstats V1.43
1140 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1141
1142SC/02 Eximstats V1.44
1143 Use a glob alias rather than an array ref in the generated
1144 parser. This improves both readability and performance.
1145
1146SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1147 Collect SpamAssassin and rejection statistics.
1148 Don't display local sender or destination tables unless
1149 there is data to show.
1150 Added average volumes into the top table text output.
1151
1152SC/04 Eximstats V1.46
1153 Collect data on the number of addresses (recipients)
1154 as well as the number of messages.
1155
1156SC/05 Eximstats V1.47
1157 Added 'Message too big' to the list of mail rejection
1158 reasons (thanks to Marco Gaiarin).
1159
1160SC/06 Eximstats V1.48
1161 Mainlog lines which have GMT offsets and are too short to
1162 have a flag are now skipped.
1163
1164SC/07 Eximstats V1.49 (Alain Williams)
1165 Added the -emptyok flag.
1166
1167SC/08 Eximstats V1.50
1168 Fixes for obtaining the IP address from reject messages.
1169
0ea2a468
JJ
1170JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1171 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1172 whitesspace changes from 4.64-PH/27
1173
1174JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1175 match 4.64-PH/13
1176
1177JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1178 are found, allow negative numbers in numeric criteria)
1179
1180JJ/06 exipick.20061117.2, added new $message_body_missing variable
1181
1182JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1183 to match changes made in 4.64-PH/43
1184
8a10f5a4
PH
1185PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1186
30e18802
PH
1187PH/47 Put in an explicit test for a DNS lookup of an address record where the
1188 "domain" is actually an IP address, and force a failure. This locks out
1189 those revolvers/nameservers that support "A-for-A" lookups, in
1190 contravention of the specifications.
1191
55728a4f
PH
1192PH/48 When a host name was looked up from an IP address, and the subsequent
1193 forward lookup of the name timed out, the host name was left in
1194 $sender_host_name, contrary to the specification.
d7d7b289 1195
d7837193
PH
1196PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1197 restricted to single-key lookups, Exim was not diagnosing an error if
1198 * or *@ was used with a query-style lookup.
1199
87054a31
PH
1200PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1201
ea2c01d2
MH
1202MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1203 long ago, but noone interested enough thought of it. Let's just say that
1204 the "1.1" means that there are some new functions that weren't there at
1205 some point in the past.
1206
e4fa6968
PH
1207PH/51 Error processing for expansion failure of helo_data from an smtp
1208 transport during callout processing was broken.
1209
56f5d9bd
PH
1210PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1211 tested/used via the -bh/-bhc/-bs options.
1212
922e1c28
PH
1213PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1214 bug, fixed in subsequent PCRE releases).
1215
21eb6e72
PH
1216PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1217 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1218
a0540757
PH
1219PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1220
944e9e9c 1221
478be7b0
SC
1222Exim version 4.63
1223-----------------
1224
1225SC/01 Use a glob alias rather than an array ref in eximstats generated
1226 parser. This improves both readability and performance.
1227
1228SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1229 Don't display local sender or destination tables in eximstats unless
1230 there is data to show.
1231 Added average volumes into the eximstats top table text output.
1232
1233SC/03 Collect data on the number of addresses (recipients) as well
1234 as the number of messages in eximstats.
1235
2b965a65
TF
1236TF/01 Correct an error in the documentation for the redirect router. Exim
1237 does (usually) call initgroups() when daemonizing.
478be7b0 1238
45b91596
PH
1239TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1240 with consistent privilege compared to when running as a daemon.
478be7b0 1241
c59f5781
TF
1242TF/03 Note in the spec that $authenticated_id is not set for local
1243 submissions from trusted users.
1244
90fc3069
TF
1245TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1246 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1247
6083aca0
TF
1248TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1249 by adding some example configuration directives to the default
1250 configuration file. A little bit of work is required to uncomment the
1251 directives and define how usernames and passwords are checked, but
1252 there is now a framework to start from.
1253
765b530f
PH
1254PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1255 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1256 without this. I don't know how relevant this is to other LDAP libraries.
1257
4e167a8c
PH
1258PH/02 Add the verb name to the "unknown ACL verb" error.
1259
4608d683
PH
1260PH/03 Magnus Holmgren's patch for filter_prepend_home.
1261
b8dc3e4a
PH
1262PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1263
5418e93b
PH
1264PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1265 directory not expanded when it should be if an expanded home directory
1266 was set for the address (which is overridden by the transport).
1267
b4a9bda2
PH
1268PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1269 libradius.
1270
45b91596
PH
1271PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1272 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1273 because it is too late at that time, and has no effect.
1274
5547e2c5
PH
1275PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1276 security issue with \' (bugzilla #107). I could not use the
1277 PQescapeStringConn() function, because it needs a PGconn value as one of
1278 its arguments.
1279
dbcef0ea
PH
1280PH/08 When testing addresses using -bt, indicate those final addresses that
1281 are duplicates that would not cause an additional delivery. At least one
1282 person was confused, thinking that -bt output corresponded to deliveries.
1283 (Suppressing duplicates isn't a good idea as you lose the information
1284 about possibly different redirections that led to the duplicates.)
1285
25257489
PH
1286PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1287 systems where poll() doesn't work, in particular OS X.
1288
c816d124
PH
1289PH/10 Added more information to debugging output for retry time not reached.
1290
a9ccd69a
PH
1291PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1292 operations in malware.c.
1293
75fa1910
PH
1294PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1295 signatures.
1296
a7d7aa58
PH
1297PH/13 If write_rejectlog was set false when logging was sent to syslog with
1298 syslog_duplication set false, log lines that would normally be written
1299 both the the main log and to the reject log were not written to syslog at
1300 all.
1301
42119b09
PH
1302PH/14 In the default configuration, change the use of "message" in ACL warn
1303 statements to "add_header".
1304
41609df5
PH
1305PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1306 not followed by a command (e.g. "seen endif").
1307
a5bd321b
PH
1308PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1309 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1310 latter.
1311
e85a7ad5 1312PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1313 so that it is now:
1314
e85a7ad5
PH
1315 ${if or { \
1316 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1317 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1318 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1319 }{no}{yes}}
1320
e85a7ad5
PH
1321 The Auto-Submitted: and various List- headers are standardised, whereas I
1322 don't think Precedence: ever was.
5dff5817 1323
d8fe1c03
PH
1324PH/18 Refactored debugging code in route_finduser() to show more information,
1325 in particular, the error code if getpwnam() issues one.
1326
16282d2b
PH
1327PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1328 This is apparently needed in addition to the PH/07 change above to avoid
1329 any possible encoding problems.
1330
35d40a98
PH
1331PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1332 but not after initializing Perl.
1333
034d99ab
PH
1334PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1335 output them only if debugging. By default they are written stderr,
1336 apparently, which is not desirable.
1337
6ec97b1b
PH
1338PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1339 queries.
1340
e22ca4ac
JJ
1341JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1342 --not options
1343
1344JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1345
33d73e3b
PH
1346PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1347 authenticated or an ident call has been made. Suppress the default
1348 values for $authenticated_id and $authenticated_sender (but permit -oMai
1349 and -oMas) when testing with -bh.
1350
9ecb03f3
PH
1351PH/24 Re-jigged the order of the tests in the default configuration so that the
1352 tests for valid domains and recipients precede the DNS black list and CSA
1353 tests, on the grounds that those ones are more expensive.
1354
084efe8d
PH
1355PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1356 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1357 This bug exists in every version of Exim that I still have, right back to
1358 0.12.
1359
366fc9f0
PH
1360PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1361 However, an attempt to turn on case-sensitivity in a regex key by
1362 including (?-i) didn't work because the subject string was already
1363 lowercased, and the effects were non-intuitive. It turns out that a
1364 one-line patch can be used to allow (?-i) to work as expected.
1365
c59f5781 1366
c887c79e
TF
1367Exim version 4.62
1368-----------------
1369
1370TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1371 other effects) broke the use of negated acl sub-conditions.
1372
1cce3af8
PH
1373PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1374 patch).
1375
afb3eaaf
PH
1376PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1377 "Deny" causes Exim to reject the incoming connection with a 554 error.
1378 Unfortunately, if there is a major crisis, such as a disk failure,
1379 tcp-wrappers gives "deny", whereas what one would like would be some
1380 kind of temporary error. A kludge has been added to help with this.
1381 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1382 554 error is used if errno is still zero or contains ENOENT (which occurs
1383 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1384 451 error is used.
1385
e173618b
PH
1386PH/03 Add -lutil to the default FreeBSD LIBS setting.
1387
dd16e114
PH
1388PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1389 errors. Otherwise a message that provokes a temporary error (when other
1390 messages do not) can cause a whole host to time out.
1391
f7fd3850
PH
1392PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1393 addresses were routed directly to files or pipes from a redirect router.
1394 File deliveries just didn't batch; pipe deliveries might have suffered
1395 odd errors.
1396
d87df92c
PH
1397PH/06 A failure to get a lock for a hints database would erroneously always say
1398 "Failed to get write lock", even when it was really a read lock.
1399
7e9f683d
PH
1400PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1401 of 0600. This has been changed to use the value of the lockfile_mode
1402 option (which defaults to 0600).
1403
bfad5236
PH
1404PH/08 Applied small patch from the Sieve maintainer.
1405
01c490df
PH
1406PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1407 folder from quota calculations, a direct delivery into this folder messed
1408 up the contents of the maildirsize file. This was because the regex was
1409 used only to exclude .Trash (or whatever) when the size of the mailbox
1410 was calculated. There was no check that a delivery was happening into an
1411 excluded directory. This bug has been fixed by ignoring all quota
1412 processing for deliveries into excluded directories.
1413
d6629cdc
PH
1414PH/10 Added the maildirfolder_create_regex option to appendfile.
1415
1cce3af8 1416
214e2000
PH
1417Exim version 4.61
1418-----------------
1419
1420PH/01 The code for finding all the local interface addresses on a FreeBSD
1421 system running IPv6 was broken. This may well have applied to all BSD
1422 systems, as well as to others that have similar system calls. The broken
1423 code found IPv4 interfaces correctly, but gave incorrect values for the
1424 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1425 that it would not match correctly against @[] and not recognize the IPv6
1426 addresses as local.
1427
f9daeae0
PH
1428PH/02 The ipliteral router was not recognizing addresses of the form user@
1429 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1430
7e66e54d
PH
1431PH/03 Added disable_ipv6.
1432
c8ea1597
PH
1433PH/04 Changed $reply_address to use the raw form of the headers instead of the
1434 decoded form, because it is most often used to construct To: headers
1435 lines in autoreplies, and the decoded form may well be syntactically
1436 invalid. However, $reply_address has leading white space removed, and all
1437 newlines turned into spaces so that the autoreply transport does not
1438 grumble.
1439
911f6fde
PH
1440PH/05 If group was specified without a user on a router, and no group or user
1441 was specified on a transport, the group from the router was ignored.
1442
47ca6d6c
PH
1443PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1444 for visible compile-time settings that can be used to change these
1445 numbers, for those that want even more. Backwards compatibility with old
1446 spool files has been maintained. However, going back to a previous Exim
1447 release will lost any variables that are in spool files.
1448
ed0e9820
PH
1449PH/07 Two small changes when running in the test harness: increase delay when
1450 passing a TCP/IP connection to a new process, in case the original
1451 process has to generate a bounce, and remove special handling of
1452 127.0.0.2 (sic), which is no longer necessary.
1453
eff37e47
PH
1454PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1455 be the same on different OS.
1456
1921d2ea
PH
1457PH/09 Moved a debug statement in filter processing to avoid a race problem when
1458 testing.
1459
b3f69ca8
JJ
1460JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1461 whether --show-vars was specified or not
1462
1463JJ/02 exipick: Added support for new ACL variable spool format introduced
1464 in 4.61-PH/06
1465
424a1c63
PH
1466PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1467 syntactically invalid From: or Reply-to: line, and a filter used this to
1468 generate an autoreply, and therefore failed to obtain an address for the
1469 autoreply, Exim could try to deliver to a non-existent relative file
1470 name, causing unrelated and misleading errors. What now happens is that
1471 it logs this as a hard delivery error, but does not attempt to create a
1472 bounce message.
1473
7a100415
PH
1474PH/11 The exinext utility has a -C option for testing purposes, but although
1475 the given file was scanned by exinext itself; it wasn't being passed on
1476 when Exim was called.
1477
19b9dc85
PH
1478PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1479 an end-of-file indication when reading a command response.
1480
309bd837
PH
1481PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1482 compiled. In many other places in Exim, IPv6 addresses are always
1483 recognized, so I have changed this. It also means that IPv4 domain
1484 literals of the form [IPV4:n.n.n.n] are now always recognized.
1485
59e82a2a
PH
1486PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1487 used if the router is not running as root, for example, when verifying at
1488 ACL time, or when using -bh. The debugging output from this situation was
1489 non-existent - all you got was a failure to exec. I have made two
1490 changes:
1491
1492 (a) Failures to set uid/gid, the current directory, or a process leader
1493 in a subprocess such as that created by queryprogram now generate
1494 suitable debugging ouput when -d is set.
1495
1496 (b) The queryprogram router detects when it is not running as root,
1497 outputs suitable debugging information if -d is set, and then runs
1498 the subprocess without attempting to change uid/gid.
1499
9edc04ce
PH
1500PH/15 Minor change to Makefile for building test_host (undocumented testing
1501 feature).
1502
1349e1e5
PH
1503PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1504 additional section of a DNS packet that returns MX or SRV records.
1505 Instead, it always explicitly searches for A/AAAA records. This avoids
1506 major problems that occur when a DNS server includes only records of one
1507 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1508 fixed another bug: if SRV records were looked up and the corresponding
1509 address records were *not* found in the additional section, the port
1510 values from the SRV records were lost.
1511
ea49d0e1
PH
1512PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1513 using the correct key (the original address) when searching the retry
1514 rules in order to find which one to use for generating the retry hint.
1515
064a94c9
PH
1516PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1517 adding the default one. Similarly, if it contains a Reply-To: header, the
1518 errors_reply_to option, if set, is not used.
1519
727071f8
PH
1520PH/19 When calculating a retry time, Exim used to measure the "time since
1521 failure" by looking at the "first failed" field in the retry record. Now
1522 it does not use this if it is later than than the arrival time of the
1523 message. Instead it uses the arrival time. This makes for better
1524 behaviour in cases where some deliveries succeed, thus re-setting the
1525 "first failed" field. An example is a quota failure for a huge message
1526 when small messages continue to be delivered. Without this change, the
1527 "time since failure" will always be short, possible causing more frequent
1528 delivery attempts for the huge message than are intended.
dd16e114 1529 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1530
f78eb7c6
PH
1531PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1532 $1, $2, $3) because the numerical variables can be reset during some
1533 expansion items (e.g. "match"), thereby losing the authentication data.
1534
21c28500
PH
1535PH/21 Make -bV show the size of off_t variables so that the test suite can
1536 decide whether to run tests for quotas > 2G.
1537
1538PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1539 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1540 filecount value is greater than 2G or if a quota value is greater than 2G
1541 on a system where the size of off_t is not greater than 4, a panic error
1542 is given.
1543
1688f43b
PH
1544PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1545 never match. The debug and -bh output now contains an explicit error
1546 message indicating a malformed IPv4 address or mask.
1547
1548PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1549 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1550 PH/23 above applies.
1551
9675b384
PH
1552PH/25 Do not write to syslog when running in the test harness. The only
1553 occasion when this arises is a failure to open the main or panic logs
1554 (for which there is an explicit test).
1555
6a3f1455
PH
1556PH/26 Added the /no_tell option to "control=freeze".
1557
dac79d3e
PH
1558PH/27 If a host name lookup failed very early in a connection, for example, if
1559 the IP address matched host_lookup and the reverse lookup yielded a name
1560 that did not have a forward lookup, an error message of the form "no IP
1561 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1562 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1563
5977a0b3
PH
1564PH/28 An enabling patch from MH: add new function child_open_exim2() which
1565 allows the sender and the authenticated sender to be set when
1566 submitting a message from within Exim. Since child_open_exim() is
1567 documented for local_scan(), the new function should be too.
1568
c91535f3
PH
1569PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1570 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1571 results in an empty string is now treated as unset.
1572
0d46a8c8
PH
1573PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1574
278c6e6c
PH
1575PH/31 Added sender_verify_fail logging option.
1576
2cbb4081
PH
1577PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1578 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1579 tidied the source and removed it altogether.
1580
3eef829e
PH
1581PH/33 When a queue run was abandoned because the load average was too high, a
1582 log line was always written; now it is written only if the queue_run log
1583 selector is set. In addition, the log line for abandonment now contains
1584 information about the queue run such as the pid. This is always present
1585 in "start" and "stop" lines but was omitted from the "abandon" line.
1586
1ab95fa6
PH
1587PH/34 Omit spaces between a header name and the colon in the error message that
1588 is given when verify = headers_syntax fails (if there are lots of them,
1589 the message gets confusing).
1590
230205fc
PH
1591PH/35 Change the default for dns_check_names_pattern to allow slashes within
1592 names, as there are now some PTR records that contain slashes. This check
1593 is only to protect against broken name servers that fall over on strange
1594 characters, so the fact that it applies to all lookups doesn't matter.
1595
75e0e026
PH
1596PH/36 Now that the new test suite is complete, we can remove some of the
1597 special code in Exim that was needed for the old test suite. For example,
1598 sorting DNS records because real resolvers return them in an arbitrary
1599 order. The new test suite's fake resolver always returns records in the
1600 same order.
1601
1602PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1603 bounces) except when queue_only is set, to avoid logging races between
1604 the different processes.
1605
145396a6
PH
1606PH/38 Panic-die if .include specifies a non-absolute path.
1607
3cd34f13
PH
1608PH/39 A tweak to the "H" retry rule from its user.
1609
11121d3d
JJ
1610JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1611 a label. They prevented compilation on older perls.
1612
1613JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1614 a warning to be raised on newish perls.
1615
1616JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1617 on queue. Changes to match documented behaviour of showing count of
1618 messages matching specified criteria.
1619
8def5aaf
PH
1620PH/40 Changed the default ident timeout from 30s to 5s.
1621
929ba01c
PH
1622PH/41 Added support for the use of login_cap features, on those BSD systems
1623 that have them, for controlling the resources used by pipe deliveries.
1624
2632889e
PH
1625PH/42 The content-scanning code uses fopen() to create files in which to put
1626 message data. Previously it was not paying any attention to the mode of
1627 the files. Exim runs with umask(0) because the rest of the code creates
1628 files with open(), and sets the required mode explicitly. Thus, these
1629 files were ending up world-writeable. This was not a big issue, because,
1630 being within the spool directory, they were not world-accessible. I have
1631 created a function called modefopen, which takes an additional mode
1632 argument. It sets umask(777), creates the file, chmods it to the required
1633 mode, then resets the umask. All the relevant calls to fopen() in the
1634 content scanning code have been changed to use this function.
1635
944a9c55
PH
1636PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1637 to 24 hours. This avoids potential overflow problems when processing G
1638 and H retry rules. I suspect nobody ever tinkers with this value.
1639
4a23603b
PH
1640PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1641
4730f942
PH
1642PH/45 When the plaintext authenticator is running as a client, the server's
1643 challenges are checked to ensure they are valid base64 strings. By
1644 default, the authentication attempt is cancelled if an invalid string is
1645 received. Setting client_ignore_invalid_base64 true ignores these errors.
1646 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1647 they are received. Thus, the responses can be made to depend on the
1648 challenges. If an invalid string is ignored, an empty string is placed in
1649 the variable.
1650
30dba1e6
PH
1651PH/46 Messages that are created by the autoreply transport now contains a
1652 References: header, in accordance with RFCs 2822 and 3834.
1653
382afc6b
PH
1654PH/47 Added authenticated_sender_force to the smtp transport.
1655
a86229cf
PH
1656PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1657
50c99ba6
PH
1658PH/49 Installed latest patch from the Sieve maintainer.
1659
d35e429d
PH
1660PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1661 was also set, the appendfile transport was unnecessarily scanning a
1662 directory of message files (e.g. for maildir delivery) to find the count
1663 of files (along with the size), even though it did not need this
1664 information. It now does the scan only if it needs to find either the
1665 size of the count of files.
1666
f90d018c
PH
1667PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1668
75def545
PH
1669PH/52 Two bugs concerned with error handling when the smtp transport is
1670 used in LMTP mode:
1671
1672 (i) Exim was not creating retry information for temporary errors given
1673 for individual recipients after the DATA command when the smtp transport
1674 was used in LMTP mode. This meant that they could be retried too
1675 frequently, and not timed out correctly.
1676
1677 (ii) Exim was setting the flag that allows error details to be returned
1678 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1679 recipients that were returned after the DATA command.
1680
1681PH/53 This is related to PH/52, but is more general: for any failing address,
1682 when detailed error information was permitted to be returned to the
1683 sender, but the error was temporary, then after the final timeout, only
1684 "retry timeout exceeded" was returned. Now it returns the full error as
1685 well as "retry timeout exceeded".
1686
c46782ef
PH
1687PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1688 do this, and (what is worse) MTAs that accept it.
1689
71fafd95
PH
1690PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1691 will now be deprecated.
1692
2c5db4fd
PH
1693PH/56 New os.c-cygwin from the Cygwin maintainer.
1694
9cf6b11a
JJ
1695JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1696 formats (previously only available in exim formats via -bpr, -bpru,
1697 and -bpra. Now also available in native and exiqgrep formats)
1698
1699JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1700 with very large, slow to parse queues
1701
1702JJ/08 exipick: added ! as generic prefix to negate any criteria format
1703
1704JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1705
898d150f
PH
1706PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1707 responses to authentication challenges, though it was showing the
1708 challenges; (ii) I've removed the CR characters from the debug output for
1709 SMTP output lines.
1710
46218253
PH
1711PH/58 Allow for the insertion of a newline as well as a space when a string
1712 is turned into more than one encoded-word during RFC 2047 encoding. The
1713 Sieve code now uses this.
1714
e97957bc
PH
1715PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1716 data_4xx, lost_connection, tls_required.
1717
81e509d7
PH
1718PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1719 message was being sent as an SMTP response.
1720
3d240ff7
PH
1721PH/61 Add -l and -k options to exicyclog.
1722
b37c4101
PH
1723PH/62 When verifying, if an address was redirected to one new address, so that
1724 verification continued, and the new address failed or deferred after
1725 having set something in $address_data, the value of $address_data was not
1726 passed back to the ACL. This was different to the case when no
1727 redirection occurred. The value is now passed back in both cases.
1728
79378e0f
PH
1729PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1730 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1731 use login_cap.h, so on its own it isn't the distinguishing feature. The
1732 new name refers directly to the setclassresources() function.
1733
e49c7bb4
PH
1734PH/65 Added configuration files for NetBSD3.
1735
d114ec46
PH
1736PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1737
f3d7df6c
PH
1738PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1739 is preferred over IPv4.
1740
715ab376
PH
1741PH/68 The bounce_return_message and bounce_return_body options were not being
1742 honoured for bounces generated during the reception of non-SMTP messages.
1743 In particular, this applied to messages rejected by the ACL. This bug has
1744 been fixed. However, if bounce_return_message is true and bounce_return_
1745 body is false, the headers that are returned for a non-SMTP message
1746 include only those that have been read before the error was detected.
1747 (In the case of an ACL rejection, they have all been read.)
1748
6b31b150
PH
1749PH/69 The HTML version of the specification is now built in a directory called
1750 spec_html instead of spec.html, because the latter looks like a path with
1751 a MIME-type, and this confuses some software.
1752
1753PH/70 Catch two compiler warnings in sieve.c.
1754
d515a917
PH
1755PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1756 function verify_get_ident() calls ip_connect() to connect a socket, but
1757 if the "connect()" function timed out, ip_connect() used to close the
1758 socket. However, verify_get_ident() also closes the socket later, and in
1759 between Exim writes to the log, which may get opened at this point. When
1760 the socket was closed in ip_connect(), the log could get the same file
1761 descriptor number as the socket. This naturally causes chaos. The fix is
1762 not to close the socket in ip_connect(); the socket should be closed by
1763 the function that creates it. There was only one place in the code where
1764 this was missing, in the iplookup router, which I don't think anybody now
1765 uses, but I've fixed it anyway.
1766
9b8fadde
PH
1767PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1768 well as to direct DNS lookups. Otherwise the handling of names in host
1769 lists is inconsistent and therefore confusing.
1770
214e2000 1771
5de37277
PH
1772Exim version 4.60
1773-----------------
1774
cc38ddbf
PH
1775PH/01 Two changes to the default runtime configuration:
1776
1777 (1) Move the checks for relay_from_hosts and authenticated clients from
1778 after to before the (commented out) DNS black list checks.
1779
1780 (2) Add control=submission to the relay_from_hosts and authenticated
1781 clients checks, on the grounds that messages accepted by these
1782 statements are most likely to be submissions.
5de37277 1783
72fdd6ae
PH
1784PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1785
1786 (1) Generate an error if the third argument for the ${prvs expansion is
1787 not a single digit.
1788
1789 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1790 string.
1791
1792 (3) Reset the variables that are obtained from the first argument of
1793 ${prvscheck and used in the second argument before leaving the code,
1794 because their memory is reclaimed, so using them afterwards may do
1795 silly things.
1796
1797 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1798 one (it's much easier than Tom thought :-).
1799
1800 (5) Because of (4), we can now allow for the use of $prvscheck_result
1801 inside the third argument.
cb9328de 1802
cb741023
PH
1803PH/03 For some reason, the default setting of PATH when running a command from
1804 a pipe transport was just "/usr/bin". I have changed it to
1805 "/bin:/usr/bin".
1806
f174f16e
PH
1807PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1808 anything to be listed in the output from -bV.
b2f5a032 1809
c25242d7
PH
1810PH/05 When a filter generated an autoreply, the entire To: header line was
1811 quoted in the delivery log line, like this:
1812
1813 => >A.N.Other <ano@some.domain> <original@ddress> ...
1814
1815 This has been changed so that it extracts the operative address. There
1816 may be more than one such address. If so, they are comma-separated, like
1817 this:
1818
1819 => >ano@some.domain,ona@other.domain <original@ddress> ...
1820
82c19f95
PH
1821PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1822 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1823 not being looked up in the rDNS to get a host name, Exim was showing the
1824 IP address twice in Received: lines, even though the IP addresses were
1825 identical. For example:
1826
1827 Received: from [1.2.3.4] (helo=[1.2.3.4])
1828
1829 However, if the real host name was known, it was omitting the HELO data
1830 if it matched the actual IP address. This has been tidied up so that it
1831 doesn't show the same IP address twice.
1832
d7ffbc12
PH
1833PH/07 When both +timestamp and +memory debugging was on, the value given by
1834 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1835 called by the debug printing, thereby overwriting the timestamp buffer.
1836 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1837
9f526266
PH
1838PH/08 When the original message was included in an autoreply transport, it
1839 always said "this is a copy of the message, including all the headers",
1840 even if body_only or headers_only was set. It now gives an appropriate
1841 message.
1842
87fcc8b9
PH
1843PH/09 Applied a patch from the Sieve maintainer which:
1844
1845 o fixes some comments
1846 o adds the (disabled) notify extension core
1847 o adds some debug output for the result of if/elsif tests
1848 o points to the current vacation draft in the documentation
1849 and documents the missing references header update
1850
1851 and most important:
1852
1853 o fixes a bug in processing the envelope test (when testing
1854 multiple envelope elements, the last element determinted the
1855 result)
1856
456682f5
PH
1857PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1858 Electronic Mail") by including:
1859
1860 Auto-submitted: auto-generated
1861
1862 in the messages that it generates (bounce messages and others, such as
1863 warnings). In the case of bounce messages for non-SMTP mesages, there was
1864 also a typo: it was using "Auto_submitted" (underscore instead of
1865 hyphen). Since every message generated by Exim is necessarily in response
1866 to another message, thes have all been changed to:
1867
1868 Auto-Submitted: auto-replied
1869
1870 in accordance with these statements in the RFC:
1871
1872 The auto-replied keyword:
1873
1874 - SHOULD be used on messages sent in direct response to another
1875 message by an automatic process,
1876
1877 - MUST NOT be used on manually-generated messages,
1878
1879 - MAY be used on Delivery Status Notifications (DSNs) and Message
1880 Disposition Notifications (MDNs),
1881
1882 - MUST NOT be used on messages generated by automatic or periodic
1883 processes, except for messages which are automatic responses to
1884 other messages.
1885
3e46c1aa
PH
1886PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1887 to the default Received: header definition.
456682f5 1888
49826d12
PH
1889PH/12 Added log selector acl_warn_skipped (default on).
1890
eba0c039
PH
1891PH/13 After a successful wildlsearch lookup, discard the values of numeric
1892 variables because (a) they are in the wrong storage pool and (b) even if
1893 they were copied, it wouldn't work properly because of the caching.
1894
a0d6ba8a
PH
1895PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1896 checking when decoding. Apparently there are clients that generate
1897 overlong encoded strings. Why am I not surprised?
1898
f0917727
PH
1899PH/15 If the first argument of "${if match_address" was not empty, but did not
1900 contain an "@" character, Exim crashed. Now it writes a panic log message
1901 and treats the condition as false.
1902
096fee00
PH
1903PH/16 In autoreply, treat an empty string for "once" the same as unset.
1904
024bd3c2
PH
1905PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1906 extension "envelope-auth". The code is finished and in agreement with
1907 other implementations, but there is no documentation so far and in fact,
1908 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1909 not changing the active code.
1910
1911 Print executed "if" and "elsif" statements when debugging is used. This
1912 helps a great deal to understand what a filter does.
1913
1914 Document more things not specified clearly in RFC3028. I had all this
1915 sorted out, when out of a sudden new issues came to my mind. Oops."
1916
df199fec
PH
1917PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1918 (Bugzilla #53).
1919
d27f1df3
PH
1920PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1921 canonical form (as documented). However, after a host name lookup from
1922 the IP address, check_host() was doing a simple string comparison with
1923 addresses acquired from the DNS when checking that the found name did
1924 have the original IP as one of its addresses. Since any found IPv6
1925 addresses are likely to be in abbreviated form, the comparison could
1926 fail. Luckily, there already exists a function for doing the comparison
1927 by converting both addresses to binary, so now that is used instead of
1928 the text comparison.
1929
96776534
PH
1930PH/20 There was another similar case to PH/19, when a complete host name was
1931 given in a host list; looking up its IP address could give an abbreviated
1932 form, whereas the current host's name might or might not be abbreviated.
1933 The same fix has been applied.
1934
5de37277 1935
9a799bc0
PH
1936Exim version 4.54
1937-----------------
1938
1939PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1940 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1941 It now does.
1942
99a4b039
PH
1943PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1944 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1945
1946PH/03 Typo: missing ".o" in src/pcre/Makefile.
1947
4b233853
PH
1948PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1949 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1950 Also, for "Auto-Submitted", treat anything other than "no" as
1951 non-personal, in accordance with RFC 3834. (Previously it treated
1952 anything starting "auto-" as non-personal.)
1953
8857ccfd
PH
1954TF/01 The control=submission/name=... option had a problem with syntax
1955 errors if the name included a slash character. The /name= option
1956 now slurps the rest of the string, so it can include any characters
1957 but it must come last in the list of options (after /sender_retain
1958 or /domain=).
1959
433a2980
PH
1960PH/05 Some modifications to the interface to the fake nameserver for the new
1961 testing suite.
1962
3e46c1aa 1963
9a799bc0 1964
e3a311ba
TK
1965Exim version 4.53
1966-----------------
1967
1968TK/01 Added the "success_on_redirect" address verification option. See
1969 NewStuff for rationale and an example.
1970
13b685f9
PH
1971PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1972
395ff96d
PH
1973PH/02 Patch to exigrep to allow it to work on syslog lines.
1974
5b68f6e4
PH
1975PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1976 fread() to skip over the body file's header line, because in Cygwin the
1977 header line is locked and is inaccessible.
1978
1ab52c69
PH
1979PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1980 co-exist for some time) to make it clear that it is the Exim ID that is
1981 referenced, not the Message-ID: header line.
1982
b07e6aa3
PH
1983PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1984 string_format() function, because snprintf() does not exist on all
1985 operating systems.
1986
254e032f
PH
1987PH/06 The use of forbid_filter_existstest now also locks out the use of the
1988 ${stat: expansion item.
1989
3af76a81
PH
1990PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1991 protocol synchronization error", to keep the pedants happy.
1992
2548ba04
PH
1993PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1994 well as for IRIX systems, when gcc is being used. See the host.c source
1995 file for comments.
1996
b6c6011d
PH
1997PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1998
cf39cf57
PH
1999PH/10 Named domain lists were not working if used in a queue_smtp_domains
2000 setting.
2001
f1513293
PH
2002PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2003 transport and to the smtp transport in LMTP mode.
2004
727549a4
PH
2005TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2006
af46795e
PH
2007PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2008 run a filter in a subprocess. This could lead to confusion in subsequent
2009 lookups in the parent process. There should also be a search_tidyup() at
2010 the end of the subprocess.
2011
d7b47fd0
PH
2012PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2013 only if the host matched helo_try_verify_hosts, which caused the
2014 verification to occur when the EHLO/HELO command was issued. The ACL just
2015 tested the remembered result. Now, if a previous verification attempt has
2016 not happened, "verify = helo" does it there and then.
2017
ee744174
JJ
2018JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2019
b582ab87
PH
2020TK/03 Fix log output including CR from clamd.
2021
41a13e0a
PH
2022PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2023 exist provoked a memory error which could cause a segfault.
2024
f625cc5a
PH
2025PH/15 Installed PCRE 6.2
2026
2027PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2028
21f7af35
PH
2029PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2030 of the problem. Specifically, suggested +O2 rather than +O1 for the
2031 HP-UX compiler.
2032
31480e42
PH
2033PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2034
2d280592
PH
2035PH/20 If a delivery was routed to a non-standard port by means of an SRV
2036 record, the port was not correctly logged when the outgoing_port log
2037 selector was set (it logged the transort's default port).
2038
7cd1141b
PH
2039PH/21 Added support for host-specific ports to manualroute, queryprogram,
2040 fallback_hosts, and "hosts" in the smtp transport.
2041
2042PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2043 host errors such as "Connection refused".
2044
750af86e
PH
2045PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2046 authentication with radiusclient 0.4.9:
2047
2048 - Error returned from rc_read_config was caught wrongly
2049 - Username/password not passed on to radius server due to wrong length.
2050
2051 The presumption is that some radiusclient API changes for 4.51/PH/17
2052 were not taken care of correctly. The code is still untested by me (my
2053 Linux distribution still has 0.3.2 of radiusclient), but it was
2054 contributed by a Radius user.
2055
2056PH/24 When doing a callout, the value of $domain wasn't set correctly when
2057 expanding the "port" option of the smtp transport.
2058
4304270b
TK
2059TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2060 while reading a MIME header. Thanks to Tom Hughes for a patch.
2061
750af86e
PH
2062PH/24 Include config.h inside local_scan.h so that configuration settings are
2063 available.
2064
64ffc24f
PH
2065PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2066 that in an ACL for RCPT (for example), you can examine exactly what was
2067 received.
2068
5dd9625b
PH
2069PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2070 commands, but it was not correctly comparing the address with the actual
2071 client host address. Thus, it would show the EHLO address in Received:
2072 header lines when this was not necessary.
2073
5591031b
PH
2074PH/27 Added the % operator to ${eval:}.
2075
ba18e66a
PH
2076PH/28 Exim tries to create and chdir to its spool directory when it starts;
2077 it should be ignoring failures (because with -C, for example, it has lost
2078 privilege). It wasn't ignoring creation failures other than "already
2079 exists".
2080
9cec981f
PH
2081PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2082 -bV or -d is used.
2083
aa2b5c79
PH
2084PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2085 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2086 too many continuations, the temporary file was not being removed, and the
2087 return code was incorrect.
aa2b5c79 2088
48a53b7f
PH
2089PH/31 Missing "BOOL" in function definition in filtertest.c.
2090
1c59d63b
PH
2091PH/32 Applied Sieve patches from the maintainer.
2092
671012da
TK
2093TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2094
1509d3a8
PH
2095PH/33 Added "verify = not_blind".
2096
2097PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2098 Local/Makefile (with some defaults set). These are used in built scripts
2099 such as exicyclog, but they have never been used in the exim_install
2100 script (though there are many overriding facilities there). I have
2101 arranged that the exim_install script now takes note of these two
2102 settings.
2103
2104PH/35 Installed configuration files for Dragonfly.
2105
2fe1a124
PH
2106PH/36 When a locally submitted message by a trusted user did not contain a
2107 From: header, and the sender address was obtained from -f or from an SMTP
2108 MAIL command, and the trusted user did not use -F to supply a sender
2109 name, $originator_name was incorrectly used when constructing a From:
2110 header. Furthermore, $originator_name was used for submission mode
2111 messages from external hosts without From: headers in a similar way,
2112 which is clearly wrong.
2113
8800895a
PH
2114PH/37 Added control=suppress_local_fixups.
2115
ccfdb010
PH
2116PH/38 When log_selector = +received_sender was set, and the addition of the
2117 sender made the log line's construction buffer exactly full, or one byte
2118 less than full, an overflow happened when the terminating "\n" was
2119 subsequently added.
2120
1130bfb0
PH
2121PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2122 when the result of a list match is failure because a DNS lookup failed.
2123
ebcb507f
PH
2124PH/40 RM_COMMAND is now used in the building process.
2125
c35e155c
PH
2126PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2127 the "build-* directories that it finds.
2128
95d1f782
PH
2129PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2130 address in a domain literal was a prefix of an interface address.
2131
fd6de02e
PH
2132PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2133 when verifying a sender address, unless rewrite_headers is false.
2134
58de37c5
PH
2135PH/44 Wrote a long comment about why errors_to addresses are verified as
2136 recipients, not senders.
2137
261cf466
TF
2138TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2139 the ratelimit ACL was added.
2140
3ee512ff
PH
2141PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2142
e08c430f
PH
2143PH/46 Added extra information about PostgreSQL errors to the error string.
2144
bef5a11f
PH
2145PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2146 avoiding the need to install special zones in a real server. This is
2147 backwards compatible; if it can't find the fake resolver, it drops back.
2148 Thus, both old and new test suites can be run.
2149
7546de58
TF
2150TF/02 Added util/ratelimit.pl
2151
e5d5a95f
TF
2152TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2153 clock is set back in time.
2154
2e88a017
TF
2155TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2156 Candler <B.Candler@pobox.com>.
2157
a5f65aa4
TF
2158TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2159 OK for addresses that are the result of redirections.
2160
e7726cbf
PH
2161PH/48 A number of further additions for the benefit of the new test suite,
2162 including a fake gethostbyname() that interfaces to the fake DNS resolver
2163 (see PH/47 above).
2164
a7fdad5b
TF
2165TF/06 The fix for widen_domains has also been applied to qualify_single and
2166 search_parents which are the other dnslookup options that can cause
2167 header rewrites.
2168
6af56900
PH
2169PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2170 type ("H").
2171
0925ede6
PH
2172PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2173
66afa403
TF
2174TF/07 Exim produced the error message "an SRV record indicated no SMTP
2175 service" if it encountered an MX record with an empty target hostname.
2176 The message is now "an MX or SRV record indicated no SMTP service".
2177
0154e85a
TF
2178TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2179 if the DNS of the sending site is misconfigured. This is quite a
2180 common situation. This change restores the behaviour of treating a
2181 helo verification defer as a failure.
2182
16f12c76
PH
2183PH/51 If self=fail was set on a router, the bounce message did not include the
2184 actual error message.
2185
bbe902f0 2186
e5a9dba6
PH
2187Exim version 4.52
2188-----------------
2189
2190TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2191
22c3b60b
PH
2192PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2193 command itself ended in error, the underlying message about the transport
2194 filter timeout was being overwritten with the pipe command error. Now the
2195 underlying error message should be appended to the second error message.
2196
06a9b4b5
PH
2197TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2198
c1ac6996
PH
2199PH/02 Reduce the amount of output that "make" produces by default. Full output
2200 can still be requested.
2201
9c7a242c
PH
2202PH/03 The warning log line about a condition test deferring for a "warn" verb
2203 was being output only once per connection, rather than after each
2204 occurrence (because it was using the same function as for successful
2205 "warn" verbs). This seems wrong, so I have changed it.
2206
87ba3f5f
PH
2207TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2208 it should not have, which might have caused a crash in the right
2209 circumstances, but probably never did.
2210
2211PH/04 Installed a modified version of Tony Finch's patch to make submission
2212 mode fix the return path as well as the Sender: header line, and to
2213 add a /name= option so that you can make the user's friendly name appear
2214 in the header line.
2215
29aba418
TF
2216TF/03 Added the control = fakedefer ACL modifier.
2217
fe0dab11
TF
2218TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2219 Mark Lowes for thorough testing.
870f6ba8 2220
11d337a4
TK
2221TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2222
2223TK/03 Merged latest SRS patch from Miles Wilton.
2224
415c8f3b
PH
2225PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2226 with the definition in sysexits.h (which is #included earlier).
2227 Fortunately, Exim does not actually use EX_OK. The code used to try to
2228 preserve the sysexits.h value, by assumimg that macro definitions were
2229 scanned for macro replacements. I have been disabused of this notion,
2230 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2231
958541e9
PH
2232PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2233 in the smtp transport. When a block could not be written in a single
2234 write() function, the timeout was being re-applied to each part-write.
2235 This seems wrong - if the receiver was accepting one byte at a time it
2236 would take for ever. The timeout is now adjusted when this happens. It
2237 doesn't have to be particularly precise.
2238
c206415f
TK
2239TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2240 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2241
2a4be8f9
PH
2242PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2243 without a domain if the check to <postmaster@domain> fails.
2244
1cba11c5
SC
2245SC/01 Eximstats: added -xls and the ability to specify output files
2246 (patch written by Frank Heydlauf).
2247
2248SC/02 Eximstats: use FileHandles for outputing results.
2249
2250SC/03 Eximstats: allow any combination of xls, txt, and html output.
2251
2252SC/04 Eximstats: fixed display of large numbers with -nvr option
2253
2254SC/05 Eximstats: fixed merging of reports with empty tables.
2255
2256SC/06 Eximstats: added the -include_original_destination flag
2257
2258SC/07 Eximstats: removed tabs and trailing whitespace.
2259
1005d00e
TK
2260TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2261
2262TK/06 MBOX spool code: Add real "From " MBOX separator line
2263 so the .eml file is really in mbox format (even though
2264 most programs do not really care). Patch from Alex Miller.
2265
2266TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2267 The latter is generated from $received_to and is only set if the
2268 message has one envelope recipient. SA can use these headers,
2269 obviously out-of-the-box. Patch from Alex Miller.
2270
9b4768fa
PH
2271PH/08 The ${def test on a variable was returning false if the variable's
2272 value was "0", contrary to what the specification has always said!
2273 The result should be true unless the variable is empty.
2274
2275PH/09 The syntax error of a character other than { following "${if
2276 def:variable_name" (after optional whitespace) was not being diagnosed.
2277 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2278 accidental colon was present, for example, could give incorrect results.
2279
0d7eb84a
PH
2280PH/10 Tidied the code in a number of places where the st_size field of a stat()
2281 result is used (not including appendfile, where other changes are about
2282 to be made).
2283
2284PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2285 This involved changing a lot of size variables from int to off_t. It
2286 should work with maildirs and everything.
2287
40727bee
TK
2288TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2289 spamd dying while we are connected to it.
2290
554d2369
TF
2291TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2292 <jgh@wizmail.org>
2293
1f922db1
PH
2294PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2295 function for BDB 4.3.
2296
ef213c3b
PH
2297PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2298
8ac170f3
PH
2299PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2300 the sources for PCRE have been re-arranged and more files are now
2301 involved.
2302
b1c749bb
PH
2303PH/15 The code I had for printing potentially long long variables in PH/11
2304 above was not the best (it lost precision). The length of off_t variables
2305 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2306 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2307 to be "long long int" or "long int". This is needed for the internal
2308 formatting function string_vformat().
b1c749bb 2309
4aac9b49
PH
2310PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2311 the configuration file to be ":syslog", then the script "guesses" where
2312 the logs files are, rather than using the compiled in default. In our
2313 case the guess is not the same as the compiled default, so the script
2314 suddenly stopped working when I started to use syslog. The patch checks
2315 to see if log_file_path is "". If so, it attempts to read it from exim
2316 with no configuration file to get the compiled in version, before it
2317 falls back to the previous guessing code."
2318
294520c8
TK
2319TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2320 implementing BATV in an Exim configuration. See NewStuff for the gory
2321 details.
2322
5bd022fe
PH
2323PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2324 Makefile that are specific to HP-UX.
2325
90e9ce59
PH
2326PH/18 If the "use_postmaster" option was set for a recipient callout together
2327 with the "random" option, the postmaster address was used as the MAIL
2328 FROM address for the random test, but not for the subsequent recipient
2329 test. It is now used for both.
2330
5ea81592
PH
2331PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2332 patch removes a few documentation additions to RFC 3028, because the
2333 latest draft now contains them. It adds the new en;ascii-case comparator
2334 and a new error check for 8bit text in MIME parts. Comparator and
2335 require names are now matched exactly. I enabled the subaddress
2336 extension, but it is not well tested yet (read: it works for me)."
2337
c6c2dc1d
PH
2338PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2339 rework some of the code of TK/09 above to avoid the hardwired use of
2340 "%lld" and "long long". Replaced the call to snprintf() with a call to
2341 string_vformat().
2342
fffffe4c
PH
2343PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2344 records point to non-existent hosts", "retry timeout exceeded", and
2345 "retry time not reached for any host after a long failure period".
ca02eafb 2346
9a26b6b2
PH
2347PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2348 experimental DomainKeys support:
2349
2350 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2351 (2) On an error such as an illegally used "control", the wrong name for
2352 the control was given.
2353
2354 These problems did NOT occur unless DomainKeys support was compiled.
2355
4aee0225
PH
2356PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2357
32d668a5
PH
2358PH/24 Added ${if match_ip condition.
2359
8187c3f3
PH
2360PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2361 databases so that it will be absolutely obvious if a crash occurs in the
2362 DB library. This is a regular occurrence (often caused by mis-matched
2363 db.h files).
2364
ff790e47 2365PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2366 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2367 picked up on a user's system that detects such things. There doesn't seem
2368 to be a gcc warning option for this - only an attribute that has to be
2369 put on the function's prototype. It seems that in Fedora Core 4 they have
2370 set this on a number of new functions. No doubt there will be more in due
2371 course.
ff790e47 2372
5417f6d1
PH
2373PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2374 specify a transport. However, if an address that was verified by such a
2375 router was the subject of a callout, Exim crashed because it tried to
2376 read the rcpt_include_affixes from the non-existent transport. Now it
2377 just assumes that the setting of that option is false. This bug was
2378 introduced by 4.51/PH/31.
2379
59cf8544
PH
2380PH/28 Changed -d+all to exclude +memory, because that information is very
2381 rarely of interest, but it makes the output a lot bigger. People tend to
2382 do -d+all out of habit.
2383
e7ad8a65
PH
2384PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2385 code in os-type was giving problems when libc.so lives in lib64, like on
2386 x86_64 Fedora Core.
2387
ade42478
PH
2388PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2389 aren't the modern standard, and it seems that some systems' include files
2390 don't always have them. Exim was already checking for some of the newer
2391 ones like T_AAAA, and defining it itself. I've added checks for all the
2392 record types that Exim uses.
2393
182ad5cf
PH
2394PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2395 not automatically generating a new one, as it is supposed to. This
2396 prevented TLS from working. If the file did exist, but contained invalid
2397 data, a new version was generated, as expected. It was only the case of a
2398 non-existent file that was broken.
2399
b0d9fc80
TK
2400TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2401 with a change in libdomainkeys > 0.64.
2402
2403TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2404 from DNS. If the selector record carries the flag, it now has
2405 precedence over the domain-wide flag.
2406
2407TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2408
47c7a64a
PH
2409PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2410 the use of a port name that isn't defined in /etc/services) occurred, the
2411 message was deferred as in a normal delivery, and thus remained on the
2412 spool, instead of being failed because of the mua_wrapper setting. This
2413 is now fixed, and I tidied up some of the mua_wrapper messages at the
2414 same time.
2415
a388bce4
SC
2416SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2417 the messages in a hash of arrays rather than using individual hashes.
2418 This is a bit cleaner and results in dramatic memory savings, albeit
2419 at a slight CPU cost.
2420
2421SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2422 as requested by Marc Sherman.
2423
2424SC/10 Eximstats: added histograms for user specified patterns as requested
2425 by Marc Sherman.
2426
0793e4ed
SC
2427SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2428
c58b88df
PH
2429PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2430 fopen() in the content-scanning modules that did not already have it.
2431
e7ad8a65 2432
7982096b
PH
2433Exim version 4.51
2434-----------------
2435
1a46a8c5
PH
2436TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2437 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2438
2f079f46 2439TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2440
2441TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2442
2443PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2444 to test Sieve filters that use "vacation".
2445
2446PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2447 that changes the way the GnuTLS parameters are stored in the cache file.
2448 The new format can be generated externally. For backward compatibility,
2449 if the data in the cache doesn't make sense, Exim assumes it has read an
2450 old-format file, and it generates new data and writes a new file. This
2451 means that you can't go back to an older release without removing the
2452 file.
2453
2454PH/03 A redirect router that has both "unseen" and "one_time" set does not
2455 work if there are any delivery delays because "one_time" forces the
2456 parent to be marked "delivered", so its unseen clone is never tried
2457 again. For this reason, Exim now forbids the simultaneous setting of
2458 these two options.
2459
2460PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2461 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2462 entry if you want to know the details. The fix, however, neglected to
2463 consider the case when local delivery batching is involved. The test for
2464 "previously delivered" was not happening when checking to see if an
2465 address could be batched with a previous (undelivered) one; under
2466 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2467 address.
1a46a8c5
PH
2468
2469PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2470 in its include files, and this causes problems building Exim.
2471
2472PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2473 header_syntax) but Exim was just ignoring anything given after a slash.
2474 In particular, this caused confusion with an attempt to use "verify =
2475 reverse_host_lookup/defer_ok". An error is now given when options are
2476 supplied for verify items that do not have them. (Maybe reverse_host_
2477 lookup should have a defer_ok option, but that's a different point.)
2478
2479PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2480 defined by RFC 821) to 2048, because there were problems with some AUTH
2481 commands, and RFC 1869 says the size should be increased for extended
2482 SMTP commands that take arguments.
2483
2484PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2485 Finch).
2486
2487PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2488 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2489
49c2d5ea
PH
2490PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2491 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2492 whatever). Otherwise the password may appear in the log. Following change
2493 PH/42 below, there is no longer a chance of it appearing in a bounce
2494 message.
49c2d5ea 2495
bf759a8b
PH
2496PH/11 Installed exipick version 20050225.0 from John Jetmore.
2497
83364d30
PH
2498PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2499 of its addresses was ever tried. (Bugzilla bug #2.)
2500
7999bbd7
PH
2501PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2502 the result incorrectly in the debug output. (It correctly added a newline
2503 to what was transported.)
2504
7dbf77c9
PH
2505TF/01 Added $received_time.
2506
74e0617f
PH
2507PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2508 commented out examples of how to interface to a virus scanner and to
2509 SpamAssassin. Also added commented examples of av_scanner and
2510 spamd_address settings.
2511
2f079f46
PH
2512PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2513 and controls are allowed in which ACLs. There were a couple of minor
2514 errors. Some of the entries in the conditions table (which is a table of
2515 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2516 negation of where the condition IS allowed.
2517
8c841523
PH
2518PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2519
7766a4f0
PH
2520PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2521 header file does not have a version number, so I've had to invent a new
2522 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2523 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2524 radiusclient), but it was contributed by a Radius user.
2525
8b417f2c
PH
2526PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2527 files or directories, for OpenSSL.
2528
901f42cb
PH
2529PH/19 When an Exim process that is running as root has to create an Exim log
2530 file, it does so in a subprocess that runs as exim:exim so as to get the
2531 ownership right at creation (otherwise, other Exim processes might see
2532 the file with the wrong ownership). There was no test for failure of this
2533 fork() call, which would lead to the process getting stuck as it waited
2534 for a non-existent subprocess. Forks do occasionally fail when resources
2535 run out. I reviewed all the other calls to fork(); they all seem to check
2536 for failure.
2537
f9b9210e
PH
2538PH/20 When checking for unexpected SMTP input at connect time (before writing
2539 the banner), Exim was not dealing correctly with a non-positive return
2540 from the read() function. If the client had disconnected by this time,
2541 the result was a log entry for a synchronization error with an empty
2542 string after "input=" when read() returned zero. If read() returned -1
2543 (an event I could not check), uninitialized data bytes were printed.
2544 There were reports of junk text (parts of files, etc) appearing after
2545 "input=".
2546
54cdb463
PH
2547PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2548
cf00dad6
PH
2549PH/22 Added support for macro redefinition, and (re)definition in between
2550 driver and ACL definitions.
2551
acb1b346
PH
2552PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2553 forgetting to use the resulting value; it was using the unexpanded value.
2554
c5ddb310
PH
2555PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2556 hadn't been configured. The fix is from Juergen Kreileder, who
2557 understands it better than I do:
2558
2559 "Here's what I see happening with three configured cyrus_sasl
2560 authenticators configured (plain, login, cram-md5):
2561
2562 On startup auth_cyrus_sasl_init() gets called for each of these.
2563 This means three calls to sasl_listmech() without a specified mech_list.
2564 => SASL tests which mechs of all available mechs actually work
2565 => three warnings about OTP not working
2566 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2567
2568 With the patch, sasl_listmech() also gets called three times. But now
2569 SASL's mech_list option is set to the server_mech specified in the the
2570 authenticator. Or in other words, the answer from sasl_listmech()
2571 gets limited to just the mech you're testing for (which is different
2572 for each call.)
2573 => the return list contains just 'plain' or 'login', 'cram-md5' or
2574 nothing depending on the value of ob->server_mech.
2575
2576 I've just tested the patch: Authentication still works fine,
2577 unavailable mechs specified in the exim configuration are still
2578 caught, and the auth.log warnings about OTP are gone."
2579
31619da6
PH
2580PH/25 When debugging is enabled, the contents of the command line are added
2581 to the debugging output, even when log_selector=+arguments is not
2582 specified.
2583
bebaf0fc
PH
2584PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2585 answer is "GNU", and only if the return is "GNU/something" is the answer
2586 "Linux".
2587
475fe28a
PH
2588PH/27 $acl_verify_message is now set immediately after the failure of a
2589 verification in an ACL, and so is available in subsequent modifiers. In
2590 particular, the message can be preserved by coding like this:
2591
2592 warn !verify = sender
2593 set acl_m0 = $acl_verify_message
2594
2595 Previously, $acl_verify_message was set only while expanding "message"
2596 and "log_message" when a very denied access.
2597
7e8bec7a
PH
2598PH/28 Modified OS/os.c-Linux with
2599
2600 -#ifndef OS_LOAD_AVERAGE
2601 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2602
2603 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2604 nomenclature these days.)
2605
e4a89c47
PH
2606PH/29 Installed patch from the Sieve maintainer that adds the options
2607 sieve_useraddress and sieve_subaddress to the redirect router.
2608
5ca2a9a1
PH
2609PH/30 In these circumstances:
2610 . Two addresses routed to the same list of hosts;
2611 . First host does not offer TLS;
2612 . First host accepts first address;
2613 . First host gives temporary error to second address;
2614 . Second host offers TLS and a TLS session is established;
2615 . Second host accepts second address.
2616 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2617 and peerdn, if requested) that were in fact used only for the second
2618 address.
7e8bec7a 2619
c688b954
PH
2620PH/31 When doing a callout as part of verifying an address, Exim was not paying
2621 attention to any local part prefix or suffix that was matched by the
2622 router that accepted the address. It now behaves in the same way as it
2623 does for delivery: the affixes are removed from the local part unless
2624 rcpt_include_affixes is set on the transport.
2625
fed77020
PH
2626PH/32 Add the sender address, as F=<...>, to the log line when logging a
2627 timeout during the DATA phase of an incoming message.
2628
7fe1560f
PH
2629PH/33 Sieve envelope tests were broken for match types other than :is. I have
2630 applied a patch sanctioned by the Sieve maintainer.
c688b954 2631
ebb6e6d5
PH
2632PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2633 the uid or gid is negative. A case of a negative gid caused this to be
2634 noticed. The fix allows for either to be negative.
2635
9c4e8f60
PH
2636PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2637 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2638 overlooked.
2639
2640PH/36 The change PH/12 above was broken. Fixed it.
2641
d7174846
PH
2642PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2643 the grounds that routing the same address twice would always produce the
2644 same answer. This might have been true once, but it is certainly no
2645 longer true now. Routing a child address may depend on the previous
2646 routing that produced that child. Some complicated redirection strategies
2647 went wrong when messages had multiple recipients, and made Exim's
2648 behaviour dependent on the order in which the addresses were given.
2649
2650 I have moved the duplicate checking until after the routing is complete.
2651 Exim scans the addresses that are assigned to local and remote
2652 transports, and removes any duplicates. This means that more work will be
2653 done, as duplicates will always all be routed, but duplicates are
2654 presumably rare, so I don't expect this is of any significance.
2655
2656 For deliveries to pipes, files, and autoreplies, the duplicate checking
2657 still happens during the routing process, since they are not going to be
2658 routed further.
2659
cfe75fc3
PH
2660PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2661 It corrects a timeout issue with spamd. This is Ian's comment: "The
2662 background is that sometimes spamd either never reads data from a
2663 connection it has accepted, or it never writes response data. The exiscan
2664 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2665 blindly assumes that writes won't block so it may never time out."
2666
be22d70e
PH
2667PH/39 Allow G after quota size as well as K and M.
2668
0612b098
PH
2669PH/40 The value set for $authenticated_id in an authenticator may not contain
2670 binary zeroes or newlines because the value is written to log lines and
2671 to spool files. There was no check on this. Now the value is run through
2672 the string_printing() function so that such characters are converted to
2673 printable escape sequences.
2674
2e0c1448
PH
2675PH/41 $message_linecount is a new variable that contains the total number of
2676 lines in the message. Compare $body_linecount, which is the count for the
2677 body only.
2678
447d236c
PH
2679PH/42 Exim no longer gives details of delivery errors for specific addresses in
2680 bounce and delay warning messages, except in certain special cases, which
2681 are as follows:
2682
2683 (a) An SMTP error message from a remote host;
2684 (b) A message specified in a :fail: redirection;
2685 (c) A message specified in a "fail" command in a system filter;
2686 (d) A message specified in a FAIL return from the queryprogram router;
2687 (e) A message specified by the cannot_route_message router option.
2688
2689 In these cases only, Exim does include the error details in bounce and
2690 warning messages. There are also a few cases where bland messages such
2691 as "unrouteable address" or "local delivery error" are given.
2692
d20976dc
PH
2693PH/43 $value is now also set for the "else" part of a ${run expansion.
2694
f656d135
PH
2695PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2696 being worked on, but at least Exim now implements the latest version to
2697 play with."
2698
2e2a30b4
PH
2699PH/45 In a pipe transport, although a timeout while waiting for the pipe
2700 process to complete was treated as a delivery failure, a timeout while
2701 writing the message to the pipe was logged, but erroneously treated as a
2702 successful delivery. Such timeouts include transport filter timeouts. For
2703 consistency with the overall process timeout, these timeouts are now
2704 treated as errors, giving rise to delivery failures by default. However,
2705 there is now a new Boolean option for the pipe transport called
2706 timeout_defer, which, if set TRUE, converts the failures into defers for
2707 both kinds of timeout. A transport filter timeout is now identified in
2708 the log output.
2709
9176e9f0
PH
2710PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2711 systems where "make" and "gmake" are different, calling "gmake" at top
2712 level broke things. I've arranged for the value of $(MAKE) to be passed
2713 from the Makefile to this script so that it can call the same version of
2714 "make".
2715
7982096b 2716
bbe902f0
PH
2717A note about Exim versions 4.44 and 4.50
2718----------------------------------------
2719
2720Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2721changes of various kinds. As a consequence, a big documentation update was
2722needed. This delayed the release for rather longer than seemed good, especially
2723in the light of a couple of (minor) security issues. Therefore, the changes
2724that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2725release. So 4.44 and 4.50 are in effect two different branches that both start
2726from 4.43.
2727
2728I have left the 4.50 change log unchanged; it contains all the changes since
27294.43. The change log for 4.44 is below; many of its items are identical to
2730those for 4.50. This seems to be the most sensible way to preserve the
2731historical information.
2732
2733
f7b63901 2734Exim version 4.50
495ae4b0
PH
2735-----------------
2736
5fe762f6
PH
2737 1. Minor wording change to the doc/README.SIEVE file.
2738
139059f6 2739 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2740 computation of the current number of files was incorrect.
495ae4b0 2741
7086e875
PH
2742 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2743 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2744 place.
2745
35af9f61
PH
2746 4. Give more explanation in the error message when the command for a transport
2747 filter fails to execute.
2748
b668c215
PH
2749 5. There are several places where Exim runs a non-Exim command in a
2750 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2751 was being done only for the command run by the queryprogram router. It is
2752 now done for all such subprocesses. The other cases are: ${run, transport
2753 filters, and the commands run by the lmtp and pipe transports.
2754
a494b1e1
PH
2755 6. Added CONFIGURE_GROUP build-time option.
2756
2757 7. Some older OS have a limit of 256 on the maximum number of file
2758 descriptors. Exim was using setrlimit() to set 1000 as a large value
2759 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2760 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2761
c5fcb476
PH
2762 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2763 was an oversight, and furthermore, ever since the addition of extra
2764 controls (e.g. 4.43/32), the checks on when to allow different forms of
2765 "control" were broken. There should now be diagnostics for all cases when a
2766 control that does not make sense is encountered.
2767
69358f02
PH
2768 9. Added the /retain_sender option to "control=submission".
2769
5be20824
PH
277010. $recipients is now available in the predata ACL (oversight).
2771
eb2c0248
PH
277211. Tidy the search cache before the fork to do a delivery from a message
2773 received from the command line. Otherwise the child will trigger a lookup
2774 failure and thereby defer the delivery if it tries to use (for example) a
2775 cached ldap connection that the parent has called unbind on.
2776
2a3eea10
PH
277712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2778 of $address_data from the recipient verification was clobbered by the
2779 sender verification.
2780
278113. The value of address_data from a sender verification is now available in
2782 $sender_address_data in subsequent conditions in the ACL statement.
2783
23c7ff99
PH
278414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2785
4deaf07d
PH
278615. Added a new option "connect=<time>" to callout options, to set a different
2787 connection timeout.
2788
926e1192
PH
278916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2790 was its contents. (It was OK if the option was not defined at all.)
2791
650edc6f
PH
279217. A "Completed" log line is now written for messages that are removed from
2793 the spool by the -Mrm option.
2794
2c7db3f5
PH
279518. New variables $sender_verify_failure and $recipient_verify_failure contain
2796 information about exactly what failed.
2797
3d235903
PH
279819. Added -dd to debug only the daemon process.
2799
7c7ad977
PH
280020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2801 handles timeouts, both on the server side and network timeouts. Renamed the
2802 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2803
981756db
PH
280421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2805 It is now set to "smtps".
2806
d4eb88df
PH
280722. $host_address is now set to the target address during the checking of
2808 ignore_target_hosts.
2809
281023. When checking ignore_target_hosts for an ipliteral router, no host name was
2811 being passed; this would have caused $sender_host_name to have been used if
2812 matching the list had actually called for a host name (not very likely,
2813 since this list is usually IP addresses). A host name is now passed as
2814 "[x.x.x.x]".
2815
7d468ab8
PH
281624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2817 code that specifies a non-restarting handler (typically sigaction() in
2818 modern systems) in an attempt to fix a rare and obscure crash bug.
2819
282025. Narrowed the window for a race in the daemon that could cause it to ignore
2821 SIGCHLD signals. This is not a major problem, because they are used only to
2822 wake it up if nothing else does.
2823
62c0818f
PH
282426. A malformed maildirsize file could cause Exim to calculate negative values
2825 for the mailbox size or file count. Odd effects could occur as a result.
2826 The maildirsize information is now recalculated if the size or filecount
2827 end up negative.
2828
26034054
PH
282927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2830 support for a long time. Removed HAVE_SYS_VFS_H.
2831
af66f652
PH
283228. Installed the latest version of exipick from John Jetmore.
2833
90af77f4
PH
283429. In an address list, if the pattern was not a regular expression, an empty
2835 subject address (from a bounce message) matched only if the pattern was an
2836 empty string. Non-empty patterns were not even tested. This was the wrong
2837 because it is perfectly reasonable to use an empty address as part of a
2838 database query. An empty address is now tested by patterns that are
2839 lookups. However, all the other forms of pattern expect the subject to
2840 contain a local part and a domain, and therefore, for them, an empty
2841 address still always fails if the pattern is not itself empty.
2842
d8ef3577
PH
284330. Exim went into a mad DNS loop when attempting to do a callout where the
2844 host was specified on an smtp transport, and looking it up yielded more
2845 than one IP address.
2846
5cb8cbc6
PH
284731. Re-factored the code for checking spool and log partition space into a
2848 function that finds that data and another that does the check. The former
2849 is then used to implement four new variables: $spool_space, $log_space,
2850 $spool_inodes, and $log_inodes.
2851
14702f5b
PH
285232. The RFC2047 encoding function was originally intended for short strings
2853 such as real names; it was not keeping to the 75-character limit for
2854 encoded words that the RFC imposes. It now respects the limit, and
2855 generates multiple encoded words if necessary. To be on the safe side, I
2856 have increased the buffer size for the ${rfc2047: expansion operator from
2857 1024 to 2048 bytes.
2858
063b1e99
PH
285933. It is now permitted to omit both strings after an "if" condition; if the
2860 condition is true, the result is "true". As before, when the second string
2861 is omitted, a false condition yields an empty string. This makes it less
2862 cumbersome to write custom ACL and router conditions.
2863
652e1b65
PH
286434. Failure to deliver a bounce message always caused it to be frozen, even if
2865 there was an errors_to setting on the router. The errors_to setting is now
2866 respected.
2867
6f0c9a4f
PH
286835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2869 canonical form (fully expanded) before being placed in
2870 $sender_host_address.
2871
33397d19
PH
287236. The table in the code that translates DNS record types into text (T_A to
2873 "A" for instance) was missing entries for NS and CNAME. It is just possible
2874 that this could have caused confusion if both these types were looked up
2875 for the same domain, because the text type is used as part of Exim's
2876 per-process caching. But the chance of anyone hitting this buglet seems
2877 very small.
2878
7bb56e1f
PH
287937. The dnsdb lookup has been extended in a number of ways.
2880
2881 (1) There is a new type, "zns", which walks up the domain tree until it
2882 finds some nameserver records. It should be used with care.
2883
ea3bc19b
PH
2884 (2) There is a new type, "mxh", which is like "mx" except that it returns
2885 just the host names, not the priorities.
2886
2887 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2888 looked up. The behaviour when one of the lookups defers can be
2889 controlled by a keyword.
7bb56e1f 2890
ea3bc19b 2891 (4) It is now possible to specify the separator character for use when
7bb56e1f 2892 multiple records are returned.
33397d19 2893
0bcb2a0e
PH
289438. The dnslists ACL condition has been extended: it is now possible to supply
2895 a list of IP addresses and/or domains to be looked up in a particular DNS
2896 domain.
2897
2ac0e484
PH
289839. Added log_selector=+queue_time_overall.
2899
4e1fde53
PH
290040. When running the queue in the test harness, wait just a tad after forking a
2901 delivery process, to get repeatability of debugging output.
2902
de365ded
PH
290341. Include certificate and key file names in error message when GnuTLS fails
2904 to set them up, because the GnuTLS error message doesn't include the name
2905 of the failing file when there is a problem reading it.
2906
f05da2e8
PH
290742. Allow both -bf and -bF in the same test run.
2908
d6453af2
PH
290943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2910
f7b63901
PH
291144. The "Exiscan patch" is now merged into the mainline Exim source.
2912
291345. Sometimes the final signoff response after QUIT could fail to get
2914 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2915 < 0 before doing a fflush(). This bug looks as though it goes back to the
2916 introduction of TLS in release 3.20, but "sometimes" must have been rare
2917 because the tests only now provoked it.
2918
a444213a
PH
291946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2920 (this can affect the format of dates).
2921
0ec020ea
PH
292247. exim_tidydb, when checking for the continued existence of a message for
2923 which it has found a message-specific retry record, was not finding
2924 messages that were in split spool directories. Consequently, it was
2925 deleting retry records that should have stayed in existence.
2926
b1206957
PH
292748. Steve fixed some bugs in eximstats.
2928
292949. The SPA authentication driver was not abandoning authentication and moving
2930 on to the next authenticator when an expansion was forced to fail,
2931 contradicting the general specification for all authenticators. Instead it
2932 was generating a temporary error. It now behaves as specified.
2933
26dd5a95
PH
293450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2935 (the order specifies the preference for clients). The order is now AES256,
2936 AES128, 3DES, ARCFOUR128.
2937
343b2385
PH
293851. Small patch to Sieve code - explicitly set From: when generating an
2939 autoreply.
2940
1c5466b9
PH
294152. Exim crashed if a remote delivery caused a very long error message to be
2942 recorded - for instance if somebody sent an entire SpamAssassin report back
2943 as a large number of 550 error lines. This bug was coincidentally fixed by
2944 increasing the size of one of Exim's internal buffers (big_buffer) that
2945 happened as part of the Exiscan merge. However, to be on the safe side, I
2946 have made the code more robust (and fixed the comments that describe what
2947 is going on).
2948
55ee9ee3
PH
294953. Now that there can be additional text after "Completed" in log lines (if
2950 the queue_time_overall log selector is set), a one-byte patch to exigrep
2951 was needed to allow it to recognize "Completed" as not the last thing in
2952 the line.
2953
d38f8232
PH
295454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2955 patch that reportedly fixes this has been added. I am not expert enough to
2956 create a test for it. This is what the patch creator wrote:
2957
2958 "I found a little strange behaviour of ldap code when working with
2959 Windows 2003 AD Domain, where users was placed in more than one
2960 Organization Units. When I tried to give exim partial DN, the exit code
2961 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2962 But simultaneously result of request was absolutely normal ldap result,
2963 so I produce this patch..."
2964
3295e65b
PH
2965 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2966 REFERENCE, so I have modified the code to exclude the patch when that macro
2967 is not defined.
2968
7102e136
PH
296955. Some experimental protocols are using DNS PTR records for new purposes. The
2970 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2971 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2972 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2973 CAN-2005-0021
7102e136 2974
3ca0ba97
PH
297556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2976
c2bcbe20
PH
297757. Double the size of the debug message buffer (to 2048) so that more of very
2978 long debug lines gets shown.
2979
18ce445d
PH
298058. The exicyclog utility now does better if the number of log files to keep
2981 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2982
1f5b4c3d
PH
298359. Two changes related to the smtp_active_hostname option:
2984
2985 (1) $smtp_active_hostname is now available as a variable.
2986 (2) The default for smtp_banner uses $smtp_active_hostname instead
2987 of $primary_hostname.
2988
b975ba52
PH
298960. The host_aton() function is supposed to be passed a string that is known
2990 to be a valid IP address. However, in the case of IPv6 addresses, it was
2991 not checking this. This is a hostage to fortune. Exim now panics and dies
2992 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2993 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2994 components; fortuitously, this particular loophole had already been fixed
2995 by change 4.50/55 above.
2996
2997 If there are any other similar loopholes, the new check in host_aton()
2998 itself should stop them being exploited. The report I received stated that
2999 data on the command line could provoke the exploit when Exim was running as
3000 exim, but did not say which command line option was involved. All I could
3001 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3002 running as the user.
ea3a6f44 3003 CAN-2005-0021
85b87bc2
PH
3004
300561. There was a buffer overflow vulnerability in the SPA authentication code
3006 (which came originally from the Samba project). I have added a test to the
3007 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 3008 CAN-2005-0022
b975ba52 3009
17ffcae7
PH
301062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3011 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3012
d95f9fdb
PH
301363. The daemon start-up calls getloadavg() while still root for those OS that
3014 need the first call to be done as root, but it missed one case: when
3015 deliver_queue_load_max is set with deliver_drop_privilege. This is
3016 necessary for the benefit of the queue runner, because there is no re-exec
3017 when deliver_drop_privilege is set.
3018
86b8287f
PH
301964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3020 This has been fixed.
3021
60dc5e56
PH
302265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3023 was in use, was not putting the data itself into the right store pool;
3024 consequently, it could be overwritten for a subsequent message in the same
3025 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3026 the caching.)
3027
533244af
PH
302866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3029
a5a28604
PH
303067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3031 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3032 the function were treating the return as a boolean value, which happened to
3033 work because 0=false and not-0=true, but is not correct code.
3034
7e634d24
PH
303568. The host_aton() function was not handling scoped IPv6 addresses (those
3036 with, for example, "%eth0" on the end) correctly.
3037
3e11c26b
PH
303869. Fixed some compiler warnings in acl.c for the bitmaps specified with
3039 negated items (that is, ~something) in unsigned ints. Some compilers
3040 apparently mutter when there is no cast.
3041
6729cf78
PH
304270. If an address verification called from an ACL failed, and did not produce a
3043 user-specific message (i.e. there was only a "system" message), nothing was
3044 put in $acl_verify_message. In this situation, it now puts the system
3045 message there.
3046
00f00ca5
PH
304771. Change 4.23/11 added synchronization checking at the start of an SMTP
3048 session; change 4.31/43 added the unwanted input to the log line - except
3049 that it did not do this in the start of session case. It now does.
3050
c9bdd01c
PH
305172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3052 This is wrong and can cause the other end to generate a synchronization
3053 error if it is another Exim or anything else that does the synchronization
3054 check. A QUIT command is no longer sent after a timeout.
3055
d43194df
PH
305673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3057 during host lookups.
3058
fe5b5d0b
PH
305974. The defer_ok option of callout verification was not working if it was used
3060 when verifying addresses in header lines, that is, for this case:
3061
3062 verify = header_sender/callout=defer_ok
3063
76a2d7ba
PH
306475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3065 those file descriptors could be used for SMTP connections. If anything
3066 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3067 could be sent to the SMTP client, causing chaos. The daemon now opens
3068 stdin, stdout, and stderr to /dev/null when it puts itself into the
3069 background.
3070
307176. Arrange for output from Perl's "warn" command to be written to Exim's main
3072 log by default. The user can override this with suitable Perl magic.
3073
04f7d5b9
PH
307477. The use of log_message on a "discard" ACL verb, which is supposed to add to
3075 the log message when discard triggers, was not working for the DATA ACL or
3076 for the non-SMTP ACL.
3077
bc60667e
PH
307878. Error message wording change in sieve.c.
3079
bb6e88ff
PH
308079. If smtp_accept_max_per_host was set, the number of connections could be
3081 restricted to fewer than expected, because the daemon was trying to set up
3082 a new connection before checking whether the processes handling previous
3083 connections had finished. The check for completed processes is now done
3084 earlier. On busy systems, this bug wouldn't be noticed because something
3085 else would have woken the daemon, and it would have reaped the completed
3086 process earlier.
3087
1e70f85b
PH
308880. If a message was submitted locally by a user whose login name contained one
3089 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3090 It caused a spool format error. I have fixed the spool reading code. A
3091 related problem was that the "from" clause in the Received: line became
3092 illegal because of the space(s). It is now covered by ${quote_local_part.
3093
309481. Included the latest eximstats from Steve (adds average sizes to HTML Top
3095 tables).
3096
4e01f9d6
PH
309782. Updated OS/Makefile-AIX as per message from Mike Meredith.
3098
1ee1cef2
PH
309983. Patch from Sieve maintainer to fix unterminated string problem in
3100 "vacation" handling.
3101
6e2b4ccc
PH
310284. Some minor changes to the Linux configuration files to help with other
3103 OS variants using glibc.
3104
8e669ac1
PH
310585. One more patch for Sieve to update vacation handling to latest spec.
3106
495ae4b0 3107
bbe902f0
PH
3108----------------------------------------------------
3109See the note above about the 4.44 and 4.50 releases.
3110----------------------------------------------------
3111
3112
3113Exim version 4.44
3114-----------------
3115
3116 1. Change 4.43/35 introduced a bug that caused file counts to be
3117 incorrectly computed when quota_filecount was set in an appendfile
3118 transport
3119
3120 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3121 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3122 place.
3123
3124 3. Give more explanation in the error message when the command for a transport
3125 filter fails to execute.
3126
3127 4. There are several places where Exim runs a non-Exim command in a
3128 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3129 was being done only for the command run by the queryprogram router. It is
3130 now done for all such subprocesses. The other cases are: ${run, transport
3131 filters, and the commands run by the lmtp and pipe transports.
3132
3133 5. Some older OS have a limit of 256 on the maximum number of file
3134 descriptors. Exim was using setrlimit() to set 1000 as a large value
3135 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3136 systems. I've change it so that if it can't get 1000, it tries for 256.
3137
3138 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3139 was an oversight, and furthermore, ever since the addition of extra
3140 controls (e.g. 4.43/32), the checks on when to allow different forms of
3141 "control" were broken. There should now be diagnostics for all cases when a
3142 control that does not make sense is encountered.
3143
3144 7. $recipients is now available in the predata ACL (oversight).
3145
3146 8. Tidy the search cache before the fork to do a delivery from a message
3147 received from the command line. Otherwise the child will trigger a lookup
3148 failure and thereby defer the delivery if it tries to use (for example) a
3149 cached ldap connection that the parent has called unbind on.
3150
3151 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3152 of $address_data from the recipient verification was clobbered by the
3153 sender verification.
3154
315510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3156 was its contents. (It was OK if the option was not defined at all.)
3157
315811. A "Completed" log line is now written for messages that are removed from
3159 the spool by the -Mrm option.
3160
316112. $host_address is now set to the target address during the checking of
3162 ignore_target_hosts.
3163
316413. When checking ignore_target_hosts for an ipliteral router, no host name was
3165 being passed; this would have caused $sender_host_name to have been used if
3166 matching the list had actually called for a host name (not very likely,
3167 since this list is usually IP addresses). A host name is now passed as
3168 "[x.x.x.x]".
3169
317014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3171 code that specifies a non-restarting handler (typically sigaction() in
3172 modern systems) in an attempt to fix a rare and obscure crash bug.
3173
317415. Narrowed the window for a race in the daemon that could cause it to ignore
3175 SIGCHLD signals. This is not a major problem, because they are used only to
3176 wake it up if nothing else does.
3177
317816. A malformed maildirsize file could cause Exim to calculate negative values
3179 for the mailbox size or file count. Odd effects could occur as a result.
3180 The maildirsize information is now recalculated if the size or filecount
3181 end up negative.
3182
318317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3184 support for a long time. Removed HAVE_SYS_VFS_H.
3185
ea3a6f44 318618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3187
318819. Allow an empty sender to be matched against a lookup in an address list.
3189 Previously the only cases considered were a regular expression, or an
3190 empty pattern.
3191
319220. Exim went into a mad DNS lookup loop when doing a callout where the
3193 host was specified on the transport, if the DNS lookup yielded more than
3194 one IP address.
3195
ea3a6f44
NM
319621. The RFC2047 encoding function was originally intended for short strings
3197 such as real names; it was not keeping to the 75-character limit for
3198 encoded words that the RFC imposes. It now respects the limit, and
3199 generates multiple encoded words if necessary. To be on the safe side, I
3200 have increased the buffer size for the ${rfc2047: expansion operator from
3201 1024 to 2048 bytes.
bbe902f0 3202
ea3a6f44
NM
320322. Failure to deliver a bounce message always caused it to be frozen, even if
3204 there was an errors_to setting on the router. The errors_to setting is now
3205 respected.
bbe902f0
PH
3206
320723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3208 canonical form (fully expanded) before being placed in
3209 $sender_host_address.
3210
321124. Updated eximstats to version 1.33
3212
ea3a6f44
NM
321325. Include certificate and key file names in error message when GnuTLS fails
3214 to set them up, because the GnuTLS error message doesn't include the name
3215 of the failing file when there is a problem reading it.
bbe902f0
PH
3216
321726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3218 As per change 25.
bbe902f0 3219
ea3a6f44
NM
322027. Reset the locale to "C" after calling embedded Perl, in case it was changed
3221 (this can affect the format of dates).
bbe902f0 3222
ea3a6f44
NM
322328. exim_tidydb, when checking for the continued existence of a message for
3224 which it has found a message-specific retry record, was not finding
3225 messages that were in split spool directories. Consequently, it was
3226 deleting retry records that should have stayed in existence.
bbe902f0
PH
3227
322829. eximstats updated to version 1.35
3229 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3230 1.35 - bugfix such that pie charts by volume are generated correctly
3231
ea3a6f44
NM
323230. The SPA authentication driver was not abandoning authentication and moving
3233 on to the next authenticator when an expansion was forced to fail,
3234 contradicting the general specification for all authenticators. Instead it
3235 was generating a temporary error. It now behaves as specified.
bbe902f0 3236
ea3a6f44
NM
323731. The default ordering of permitted cipher suites for GnuTLS was pessimal
3238 (the order specifies the preference for clients). The order is now AES256,
3239 AES128, 3DES, ARCFOUR128.
bbe902f0 3240
ea3a6f44
NM
324131. Small patch to Sieve code - explicitly set From: when generating an
3242 autoreply.
bbe902f0 3243
ea3a6f44
NM
324432. Exim crashed if a remote delivery caused a very long error message to be
3245 recorded - for instance if somebody sent an entire SpamAssassin report back
3246 as a large number of 550 error lines. This bug was coincidentally fixed by
3247 increasing the size of one of Exim's internal buffers (big_buffer) that
3248 happened as part of the Exiscan merge. However, to be on the safe side, I
3249 have made the code more robust (and fixed the comments that describe what
3250 is going on).
bbe902f0 3251
ea3a6f44
NM
325233. Some experimental protocols are using DNS PTR records for new purposes. The
3253 keys for these records are domain names, not reversed IP addresses. The
3254 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3255 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3256 CAN-2005-0021
3257
ea3a6f44
NM
325834. The host_aton() function is supposed to be passed a string that is known
3259 to be a valid IP address. However, in the case of IPv6 addresses, it was
3260 not checking this. This is a hostage to fortune. Exim now panics and dies
3261 if the condition is not met. A case was found where this could be provoked
3262 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3263 components; fortuitously, this particular loophole had already been fixed
3264 by change 4.50/55 or 4.44/33 above.
3265
3266 If there are any other similar loopholes, the new check in host_aton()
3267 itself should stop them being exploited. The report I received stated that
3268 data on the command line could provoke the exploit when Exim was running as
3269 exim, but did not say which command line option was involved. All I could
3270 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3271 running as the user.
bbe902f0
PH
3272 CAN-2005-0021
3273
ea3a6f44
NM
327435. There was a buffer overflow vulnerability in the SPA authentication code
3275 (which came originally from the Samba project). I have added a test to the
3276 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3277 CAN-2005-0022
3278
ea3a6f44
NM
327936. The daemon start-up calls getloadavg() while still root for those OS that
3280 need the first call to be done as root, but it missed one case: when
3281 deliver_queue_load_max is set with deliver_drop_privilege. This is
3282 necessary for the benefit of the queue runner, because there is no re-exec
3283 when deliver_drop_privilege is set.
bbe902f0 3284
ea3a6f44
NM
328537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3286 was in use, was not putting the data itself into the right store pool;
3287 consequently, it could be overwritten for a subsequent message in the same
3288 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3289 the caching.)
bbe902f0 3290
ea3a6f44
NM
329138. Sometimes the final signoff response after QUIT could fail to get
3292 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3293 < 0 before doing a fflush(). This bug looks as though it goes back to the
3294 introduction of TLS in release 3.20, but "sometimes" must have been rare
3295 because the tests only now provoked it.
bbe902f0
PH
3296
3297
495ae4b0
PH
3298Exim version 4.43
3299-----------------
3300
3301 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3302 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3303 Now it returns an integer. A number of calls were still expecting a T/F
3304 return. Fortuitously, in all cases, the tests worked in OK situations,
3305 which is the norm. However, things would have gone wrong on any write
3306 failures on the smtp file descriptor. This function is used when sending
3307 messages over SMTP and also when doing verify callouts.
3308
3309 2. When Exim is called to do synchronous delivery of a locally submitted
3310 message (the -odf or -odi options), it no longer closes stderr before doing
3311 the delivery.
3312
3313 3. Implemented the mua_wrapper option.
3314
3315 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3316
3317 5. Implemented the functions header_remove(), header_testname(),
3318 header_add_at_position(), and receive_remove_recipient(), and exported them
3319 to local_scan().
3320
3321 6. If an ACL "warn" statement specified the addition of headers, Exim already
3322 inserted X-ACL-Warn: at the start if there was no header name. However, it
3323 was not making this test for the second and subsequent header lines if
3324 there were newlines in the string. This meant that an invalid header could
3325 be inserted if Exim was badly configured.
3326
3327 7. Allow an ACL "warn" statement to add header lines at the start or after all
3328 the Received: headers, as well as at the end.
3329
3330 8. Added the rcpt_4xx retry error code.
3331
3332 9. Added postmaster_mailfrom=xxx to callout verification option.
3333
333410. Added mailfrom=xxxx to the callout verification option, for verify=
3335 header_sender only.
3336
333711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3338 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3339
334012. Inserted some casts to stop certain compilers warning when using pointer
3341 differences as field lengths or precisions in printf-type calls (mostly
3342 affecting debugging statements).
3343
334413. Added optional readline() support for -be (dynamically loaded).
3345
334614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3347 same clock tick as a message's arrival, so that its received time was the
3348 same as the "first fail" time on the retry record, and that message
3349 remained on the queue past the ultimate address timeout, every queue runner
3350 would try a delivery (because it was past the ultimate address timeout) but
3351 after another failure, the ultimate address timeout, which should have then
3352 bounced the address, did not kick in. This was a "< instead of <=" error;
3353 in most cases the first failure would have been in the next clock tick
3354 after the received time, and all would be well.
3355
335615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3357 being recognized when the domain list was tested by the match_domain
3358 condition in an expansion string.
3359
336016. Added the ${str2b64: operator.
3361
336217. Exim was always calling setrlimit() to set a large limit for the number of
3363 processes, without checking whether the existing limit was already
3364 adequate. (It did check for the limit on file descriptors.) Furthermore,
3365 errors from getrlimit() and setrlimit() were being ignored. Now they are
3366 logged to the main and panic logs, but Exim does carry on, to try to do its
3367 job under whatever limits there are.
3368
336918. Imported PCRE 5.0.
3370
337119. Trivial typo in log message " temporarily refused connection" (the leading
3372 space).
3373
337420. If the log selector return_path_on_delivery was set and an address was
3375 redirected to /dev/null, the delivery process crashed because it assumed
3376 that a return path would always be set for a "successful" delivery. In this
3377 case, the whole delivery is bypassed as an optimization, and therefore no
3378 return path is set.
3379
338021. Internal re-arrangement: the function for sending a challenge and reading
3381 a response while authentication was assuming a zero-terminated challenge
3382 string. It's now changed to take a pointer and a length, to allow for
3383 binary data in such strings.
3384
338522. Added the cyrus_sasl authenticator (code supplied by MBM).
3386
338723. Exim was not respecting finduser_retries when seeking the login of the
3388 uid under which it was called; it was always trying 10 times. (The default
3389 setting of finduser_retries is zero.) Also, it was sleeping after the final
3390 failure, which is pointless.
3391
339224. Implemented tls_on_connect_ports.
3393
339425. Implemented acl_smtp_predata.
3395
339626. If the domain in control=submission is set empty, Exim assumes that the
3397 authenticated id is a complete email address when it generates From: or
3398 Sender: header lines.
3399
340027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3401 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3402 chown and chgrp in /bin and hostname in /usr/bin.
3403
340428. Exim was keeping the "process log" file open after each use, just as it
3405 does for the main log. This opens the possibility of it remaining open for
3406 long periods when the USR1 signal hits a daemon. Occasional processlog
3407 errors were reported, that could have been caused by this. Anyway, it seems
3408 much more sensible not to leave this file open at all, so that is what now
3409 happens.
3410
341129. The long-running daemon process does not normally write to the log once it
3412 has entered its main loop, and it closes the log before doing so. This is
3413 so that log files can straightforwardly be renamed and moved. However,
3414 there are a couple of unusual error situations where the daemon does write
3415 log entries, and I had neglected to close the log afterwards.
3416
341730. The text of an SMTP error response that was received during a remote
3418 delivery was being truncated at 512 bytes. This is too short for some of
3419 the long messages that one sometimes sees. I've increased the limit to
3420 1024.
3421