Cond !bool{}/!bool_lax{} did not negate. Fixed.
[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
5ee6f336
PP
27PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
28 Bugzilla 1104.
29
10906672 30
aa097c4c
NM
31Exim version 4.75
32-----------------
33
4c9ef03a 34NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
35 Bugzilla 1073
36
7f3d9eff
TF
37TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
38 This fixes portability to compilers other than gcc, notably
39 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
40
159f52d2
TF
41TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
42 makefiles for portability to HP-UX and POSIX correctness.
43
0cc9542a
PP
44PP/01 Permit LOOKUP_foo enabling on the make command-line.
45 Also via indented variable definition in the Makefile.
46 (Debugging by Oliver Heesakkers).
47
f7274286
PP
48PP/02 Restore caching of spamd results with expanded spamd_address.
49 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
50
7b797365
PP
51PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
52 Improves build reliability. Fix from: Frank Elsner
53
caacae52
NM
54NM/02 Fix wide character breakage in the rfc2047 coding
55 Fixes bug 1064. Patch from Andrey N. Oktyabrski
56
09dcaba9
NM
57NM/03 Allow underscore in dnslist lookups
58 Fixes bug 1026. Patch from Graeme Fowler
59
bc19a55b
PP
60PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
61 Code patches from Adam Ciarcinski of NetBSD.
caacae52 62
bd4c9759
NM
63NM/04 Fixed exiqgrep to cope with mailq missing size issue
64 Fixes bug 943.
65
b72aab72
PP
66PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
67 is logged, to avoid truncation. Patch from John Horne.
68
2fe76745
PP
69PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
70 Patch from Jakob Hirsch.
71
76aa570c
PP
72PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
73 SQL string expansion failure details.
74 Patch from Andrey Oktyabrski.
75
f1e5fef5
PP
76PP/08 Bugzilla 486: implement %M datestamping in log filenames.
77 Patch from Simon Arlott.
78
4d805ee9
PP
79PP/09 New lookups functionality failed to compile on old gcc which rejects
80 extern declarations in function scope.
81 Patch from Oliver Fleischmann
82
cd59ab18
PP
83PP/10 Use sig_atomic_t for flags set from signal handlers.
84 Check getgroups() return and improve debugging.
85 Fixed developed for diagnosis in bug 927 (which turned out to be
86 a kernel bug).
87
332f5cf3
PP
88PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
89 Patch from Mark Zealey.
90
29cfeb94
PP
91PP/12 Bugzilla 1056: Improved spamd server selection.
92 Patch from Mark Zealey.
93
660242ad
PP
94PP/13 Bugzilla 1086: Deal with maildir quota file races.
95 Based on patch from Heiko Schlittermann.
96
bc4bc4c5
PP
97PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
98 Patch from Uwe Doering, sign-off by Michael Haardt.
99
2e64baa9
NM
100NM/05 Fix to spam.c to accommodate older gcc versions which dislike
101 variable declaration deep within a block. Bug and patch from
102 Dennis Davis.
103
bddd7526
PP
104PP/15 lookups-Makefile IRIX compatibilty coercion.
105
6bac1a9a
PP
106PP/16 Make DISABLE_DKIM build knob functional.
107
552193f0
NM
108NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
109 Patch by Simon Arlott
baeee2c1 110
1b587e48
TF
111TF/03 Fix valgrind.h portability to C89 compilers that do not support
112 variable argument macros. Our copy now differs from upstream.
113
aa097c4c 114
8c07b69f
TF
115Exim version 4.74
116-----------------
117
118TF/01 Failure to get a lock on a hints database can have serious
119 consequences so log it to the panic log.
120
c0ea85ab
TF
121TF/02 Log LMTP confirmation messages in the same way as SMTP,
122 controlled using the smtp_confirmation log selector.
123
0761d44e
TF
124TF/03 Include the error message when we fail to unlink a spool file.
125
0a349494
PP
126DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
127 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
128 for maintaining out-of-tree patches for some time.
129
130PP/01 Bugzilla 139: Documentation and portability issues.
131 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
132 Handle per-OS dynamic-module compilation flags.
133
fea24b2e
PP
134PP/02 Let /dev/null have normal permissions.
135 The 4.73 fixes were a little too stringent and complained about the
136 permissions on /dev/null. Exempt it from some checks.
137 Reported by Andreas M. Kirchwitz.
138
6545de78
PP
139PP/03 Report version information for many libraries, including
140 Exim version information for dynamically loaded libraries. Created
141 version.h, now support a version extension string for distributors
142 who patch heavily. Dynamic module ABI change.
143
1670ef10
PP
144PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
145 privilege escalation vulnerability whereby the Exim run-time user
146 can cause root to append content of the attacker's choosing to
147 arbitrary files.
148
c0886197
PP
149PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
150 (Wolfgang Breyha)
151
b7487bce
PP
152PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
153 If dropping privileges for untrusted macros, we disabled normal logging
154 on the basis that it would fail; for the Exim run-time user, this is not
155 the case, and it resulted in successful deliveries going unlogged.
156 Fixed. Reported by Andreas Metzler.
157
8c07b69f 158
97fd1e48 159Exim version 4.73
ed7f7860 160-----------------
97fd1e48
PP
161
162PP/01 Date: & Message-Id: revert to normally being appended to a message,
163 only prepend for the Resent-* case. Fixes regression introduced in
164 Exim 4.70 by NM/22 for Bugzilla 607.
165
6901c596
PP
166PP/02 Include check_rfc2047_length in configure.default because we're seeing
167 increasing numbers of administrators be bitten by this.
168
a8c8d6b5
JJ
169JJ/01 Added DISABLE_DKIM and comment to src/EDITME
170
77bb000f
PP
171PP/03 Bugzilla 994: added openssl_options main configuration option.
172
a29e5231
PP
173PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
174
ec5a0394 175PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 176
55c75993
PP
177PP/06 Adjust NTLM authentication to handle SASL Initial Response.
178
453a6645 179PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
180 without a peer certificate, leading to a segfault because of an
181 assumption that peers always have certificates. Be a little more
453a6645
PP
182 paranoid. Problem reported by Martin Tscholak.
183
8544e77a
PP
184PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
185 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
186 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
187 CL also introduces -bmalware, various -d+acl logging additions and
188 more caution in buffer sizes.
8544e77a 189
83e029d5
PP
190PP/09 Implemented reverse_ip expansion operator.
191
ed7f7860
PP
192PP/10 Bugzilla 937: provide a "debug" ACL control.
193
7d9f747b
PP
194PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
195
4b2241d2
PP
196PP/12 Bugzilla 973: Implement --version.
197
10385c15
PP
198PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
199
dbc4b90d
PP
200PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
201
532be449
PP
202PP/15 Bugzilla 816: support multiple condition rules on Routers.
203
6a8de854 204PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
205 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
206 ignore trailing whitespace.
6a8de854 207
5dc43717
JJ
208JJ/02 prevent non-panic DKIM error from being sent to paniclog
209
210JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
211 "exim" to be used
55c75993 212
3346ab01
PP
213PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
214 Notification from Dr Andrew Aitchison.
215
491fab4c
PP
216PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
217 ExtendedDetectionInfo response format.
218 Notification from John Horne.
219
13eb9497
PP
220PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
221 compatible.
222
223PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
224 XSL and documented dependency on system catalogs, with examples of how
225 it normally works.
226
7f36d675
DW
227DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
228 access.
229
c1d94452
DW
230DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
231 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
232 configuration file which is writeable by the Exim user or group.
233
e2f5dc15
DW
234DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
235 of configuration files to cover files specified with the -C option if
236 they are going to be used with root privileges, not just the default
237 configuration file.
238
cd25e41d
DW
239DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
240 option (effectively making it always true).
241
261dc43e
DW
242DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
243 files to be used while preserving root privileges.
244
fa32850b
DW
245DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
246 that rogue child processes cannot use them.
247
79d4bc3d
PP
248PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
249 run-time user, instead of root.
250
2cfd3221
PP
251PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
252 Exim run-time user without dropping privileges.
253
fb08281f
DW
254DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
255 result string, instead of calling string_vformat() twice with the same
256 arguments.
3346ab01 257
74935b98
DW
258DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
259 for other users. Others should always drop root privileges if they use
260 -C on the command line, even for a whitelisted configure file.
261
90b6341f
DW
262DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
263
57730b52
ML
264NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
265
66581d1e 266
465e92cf
JJ
267Exim version 4.72
268-----------------
269
453a6645
PP
270JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
271 $data_path, and $header_path variables; fixed documentation bugs and
272 typos
465e92cf 273
453a6645
PP
274JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
275 exipick to access non-standard spools, including the "frozen" queue
276 (Finput)
edae0343 277
9bd3e22c
NM
278NM/01 Bugzilla 965: Support mysql stored procedures.
279 Patch from Alain Williams
280
bb576ff7
NM
281NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
282
5a1a5845
NM
283NM/03 Bugzilla 955: Documentation fix for max_rcpts.
284 Patch from Andreas Metzler
285
981a9fad
NM
286NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
287 Patch from Kirill Miazine
288
7fc497ee
NM
289NM/05 Bugzilla 671: Added umask to procmail example.
290
1a41defa
JJ
291JJ/03 installed exipick 20100323.0, fixing doc bug
292
a466095c 293NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 294 directory. Notification and patch from Dan Rosenberg.
a466095c 295
94a6bd0b
NM
296TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
297
298TK/02 Improve log output when DKIM signing operation fails.
299
300MH/01 Treat the transport option dkim_domain as a colon separated
301 list, not as a single string, and sign the message with each element,
302 omitting multiple occurences of the same signer.
303
c1b141a8
NM
304NM/07 Null terminate DKIM strings, Null initialise DKIM variable
305 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 306
b26eacf1 307NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
308 Patch by Simon Arlott
309
179c5980 310PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 311 MBX locking. Notification from Dan Rosenberg.
179c5980 312
9bd3e22c 313
7c6d71af
NM
314Exim version 4.71
315-----------------
316
7d9f747b 317TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 318
f013fb92
NM
319NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
320
0eb8eedd
NM
321NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
322
663ee6d9
NM
323NM/03 Bugzilla 847: Enable DNSDB lookup by default.
324
177ebd9b
NM
325NM/04 Bugzilla 915: Flag broken perl installation during build.
326
7c6d71af 327
210f147e
NM
328Exim version 4.70
329-----------------
330
cdd3bb85 331TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 332 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
333
334TK/02 Write list of recipients to X-Envelope-Sender header when building
335 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 336 Hirsch).
cdd3bb85
TK
337
338TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
339 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 340 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
341
342TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
343 by Mark Daniel Reidel <mr@df.eu>.
344
210f147e
NM
345NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
346 When building exim an external PCRE library is now needed -
347 PCRE is a system library on the majority of modern systems.
348 See entry on PCRE_LIBS in EDITME file.
349
deafd5b3
NM
350NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
351 conversation. Added nologin parameter to request.
7d9f747b 352 Patch contributed by Kirill Miazine.
deafd5b3 353
089793a4
TF
354TF/01 Do not log submission mode rewrites if they do not change the address.
355
5f16ca82
TF
356TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
357
dae9d94e 358NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 359 log files in place. Contributed by Roberto Lima.
dae9d94e 360
7d9f747b 361NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 362
06864c44
TF
363TF/03 Bugzilla 615: When checking the local_parts router precondition
364 after a local_part_suffix or local_part_prefix option, Exim now
365 does not use the address's named list lookup cache, since this
366 contains cached lookups for the whole local part.
367
65a7d8c3 368NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 369 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 370
23510047 371TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 372
7d9f747b 373NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 374
7d8eec3a 375NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 376 Patch provided by Jan Srzednicki.
6c588e74 377
89dec7b6
TF
378TF/05 Leading white space used to be stripped from $spam_report which
379 wrecked the formatting. Now it is preserved.
5f28a6e8 380
a99de90c
TF
381TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
382 that they are available at delivery time.
383
e2803e40
TF
384TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
385
7199e1ee
TF
386TF/08 TLS error reporting now respects the incoming_interface and
387 incoming_port log selectors.
388
e276e04b
TF
389TF/09 Produce a more useful error message if an SMTP transport's hosts
390 setting expands to an empty string.
391
ce552449 392NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 393 Patch provided by Phil Pennock.
ce552449 394
e765a0f1 395NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 396 Patch provided by Richard Godbee.
e765a0f1 397
4f054c63 398NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 399 acl_smtp_notquit, added index entry.
4f054c63 400
7d9f747b
PP
401NM/09 Bugzilla 787: Potential buffer overflow in string_format.
402 Patch provided by Eugene Bujak.
24c929a2 403
7d9f747b
PP
404NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
405 accept(). Patch provided by Maxim Dounin.
cf73943b 406
b52bc06e 407NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 408 Patch provided by Phil Pennock.
b52bc06e 409
447de4b0
NM
410NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
411
4c69d561 412NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 413 Patch provided by Brad "anomie" Jorsch.
4c69d561 414
d5c39246 415NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 416 Patch provided by Dean Brooks.
9b989985 417
0b23848a
TK
418TK/05 Add native DKIM support (does not depend on external libraries).
419
8f3414a1 420NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 421 Patch provided by Graeme Fowler.
e2aacdfd 422
fb6f955d
NM
423NM/16 Bugzilla 851: Documentation example syntax fix.
424
425NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 426
7d9f747b
PP
427NM/18 Bugzilla 894: Fix issue with very long lines including comments in
428 lsearch.
dbb0bf41 429
7d9f747b
PP
430NM/19 Bugzilla 745: TLS version reporting.
431 Patch provided by Phil Pennock.
f3766eb5 432
7d9f747b
PP
433NM/20 Bugzilla 167: bool: condition support.
434 Patch provided by Phil Pennock.
36f12725 435
7d9f747b
PP
436NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
437 clients. Patch provided by Phil Pennock.
e6060e2c 438
7d9f747b
PP
439NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
440 Patch provided by Brad "anomie" Jorsch.
5eb690a1 441
7d9f747b
PP
442NM/23 Bugzilla 687: Fix misparses in eximstats.
443 Patch provided by Heiko Schlittermann.
d5c13d66 444
7d9f747b
PP
445NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
446 Patch provided by Heiko Schlittermann.
b2335c0b 447
7d9f747b 448NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 449 plus update to original patch.
f4cd9433 450
7d9f747b 451NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 452
7d9f747b
PP
453NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
454 Patch provided by David Brownlee.
8dc71ab3 455
7d9f747b 456NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 457
7d9f747b 458NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 459
7d9f747b 460NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 461
7d9f747b 462NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 463
17792b53 464NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 465 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 466
7d9f747b
PP
467NM/33 Bugzilla 898: Transport filter timeout fix.
468 Patch by Todd Rinaldo.
52383f8f 469
7d9f747b
PP
470NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
471 Patch by Serge Demonchaux.
5ca6d115 472
7d9f747b
PP
473NM/35 Bugzilla 39: Base64 decode bug fixes.
474 Patch by Jakob Hirsch.
baee9eee 475
7d9f747b 476NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 477
7d9f747b 478NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 479
7d9f747b 480NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 481
7d9f747b 482NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 483
deafd5b3 484
47db1125
NM
485Exim version 4.69
486-----------------
487
4b3504d0
TK
488TK/01 Add preliminary DKIM support. Currently requires a forked version of
489 ALT-N's libdkim that I have put here:
490 http://duncanthrax.net/exim-experimental/
491
492 Note to Michael Haardt: I had to rename some vars in sieve.c. They
493 were called 'true' and it seems that C99 defines that as a reserved
494 keyword to be used with 'bool' variable types. That means you could
495 not include C99-style headers which use bools without triggering
496 build errors in sieve.c.
497
81ea09ca
NM
498NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
499 as mailq or other aliases. Changed the --help handling significantly
500 to do whats expected. exim_usage() emits usage/help information.
501
f13cddcb
SC
502SC/01 Added the -bylocaldomain option to eximstats.
503
7d9f747b 504NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 505
7d9f747b 506NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 507
7d9f747b 508NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
509
510
eb4c0de6
PH
511Exim version 4.68
512-----------------
513
514PH/01 Another patch from the Sieve maintainer.
515
6a3bceb1
PH
516PH/02 When an IPv6 address is converted to a string for single-key lookup
517 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
518 dots are used instead of colons so that keys in lsearch files need not
519 contain colons. This was done some time before quoting was made available
520 in lsearch files. However, iplsearch files do require colons in IPv6 keys
521 (notated using the quote facility) so as to distinguish them from IPv4
522 keys. This meant that lookups for IP addresses in host lists did not work
523 for iplsearch lookups.
524
525 This has been fixed by arranging for IPv6 addresses to be expressed with
526 colons if the lookup type is iplsearch. This is not incompatible, because
527 previously such lookups could never work.
528
529 The situation is now rather anomolous, since one *can* have colons in
530 ordinary lsearch keys. However, making the change in all cases is
531 incompatible and would probably break a number of configurations.
532
2e30fa9d
TK
533TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
534 version.
535
0806a9c5
MH
536MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
537 conversion specification without a maximum field width, thereby enabling
538 a rogue spamd server to cause a buffer overflow. While nobody in their
539 right mind would setup Exim to query an untrusted spamd server, an
540 attacker that gains access to a server running spamd could potentially
541 exploit this vulnerability to run arbitrary code as the Exim user.
542
ae276964
TK
543TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
544 $primary_hostname instead of what libspf2 thinks the hosts name is.
545
0f2cbd1b
MH
546MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
547 a directory entry by the name of the lookup key. Previously, if a
548 symlink pointed to a non-existing file or a file in a directory that
549 Exim lacked permissions to read, a lookup for a key matching that
550 symlink would fail. Now it is enough that a matching directory entry
551 exists, symlink or not. (Bugzilla 503.)
552
2b85bce7
PH
553PH/03 The body_linecount and body_zerocount variables are now exported in the
554 local_scan API.
555
93655c46
PH
556PH/04 Added the $dnslist_matched variable.
557
6c512171
PH
558PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
559 This means they are set thereafter only if the connection becomes
560 encrypted.
561
562PH/06 Added the client_condition to authenticators so that some can be skipped
563 by clients under certain conditions.
564
aa6dc513
PH
565PH/07 The error message for a badly-placed control=no_multiline_responses left
566 "_responses" off the end of the name.
567
a96603a0
PH
568PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
569
8f240103
PH
570PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
571 (without spaces) instead of just copying the configuration text.
572
573PH/10 Added the /noupdate option to the ratelimit ACL condition.
574
d677b2f2
PH
575PH/11 Added $max_received_linelength.
576
d52120f2
PH
577PH/12 Added +ignore_defer and +include_defer to host lists.
578
64f2600a
PH
579PH/13 Installed PCRE version 7.2. This needed some changes because of the new
580 way in which PCRE > 7.0 is built.
581
8669f003
PH
582PH/14 Implemented queue_only_load_latch.
583
a4dc33a8
PH
584PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
585 MAIL command. The effect was to mangle the value on 64-bit systems.
586
d6a60c0f
PH
587PH/16 Another patch from the Sieve maintainer.
588
8f128379
PH
589PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
590
8932dffe
PH
591PH/18 If a system quota error occurred while trying to create the file for
592 a maildir delivery, the message "Mailbox is full" was not appended to the
593 bounce if the delivery eventually timed out. Change 4.67/27 below applied
594 only to a quota excession during the actual writing of the file.
d6a60c0f 595
ddea74fa 596PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
597 characters?) which causes problems in log lines. The DN values are now
598 passed through string_printing() before being added to log lines.
599
ddea74fa 600PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
601 and InterBase are left for another time.)
602
ddea74fa
PH
603PH/21 Added message_body_newlines option.
604
ce9f225c
PH
605PH/22 Guard against possible overflow in moan_check_errorcopy().
606
19897d52
PH
607PH/23 POSIX allows open() to be a macro; guard against that.
608
bc64a74d
PH
609PH/24 If the recipient of an error message contained an @ in the local part
610 (suitably quoted, of course), incorrect values were put in $domain and
611 $local_part during the evaluation of errors_copy.
612
eb4c0de6 613
b4ed4da0
PH
614Exim version 4.67
615-----------------
616
22ad45c9
MH
617MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
618 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
619 Jan Srzednicki.
620
b4ed4da0
PH
621PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
622 issue a MAIL command.
623
431b7361
PH
624PH/02 In an ACL statement such as
625
626 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
627
628 if a client was not listed at all, or was listed with a value other than
629 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
630 the condition was not true (as it should be), so access was not denied.
631 The bug was that the ! inversion was incorrectly passed on to the second
632 item. This has been fixed.
633
634PH/03 Added additional dnslists conditions == and =& which are different from
635 = and & when the dns lookup returns more than one IP address.
636
83da1223
PH
637PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
638 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
639
54fc8428
PH
640PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
641 FSYNC, which compiles an option called disable_fsync that allows for
642 bypassing fsync(). The documentation is heavily laced with warnings.
643
34c5e8dd
SC
644SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
645
bbe15da8
PH
646PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
647 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
648 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
649 including adding "make clean"; (3) Added -fPIC when compiling the test
650 dynamically loaded module, to get rid of a warning.
651
0e8a9471
MH
652MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
653 message fails, move_frozen_messages = true and ignore_bounce_errors_after
654 = 0s. The bug is otherwise harmless.
655
f0872424
PH
656PH/07 There was a bug in the dovecot authenticator such that the value of
657 $auth1 could be overwritten, and so not correctly preserved, after a
658 successful authentication. This usually meant that the value preserved by
659 the server_setid option was incorrect.
660
b01dd148
PH
661PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
662
6bf342e1
PH
663PH/09 Installed PCRE release 7.0.
664
273f34d0
PH
665PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
666 run for batched SMTP input. It is now run at the start of every message
667 in the batch. While fixing this I discovered that the process information
668 (output by running exiwhat) was not always getting set for -bs and -bS
669 input. This is fixed, and it now also says "batched" for BSMTP.
670
cf8b11a5
PH
671PH/11 Added control=no_pipelining.
672
41c7c167
PH
673PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
674 patch, slightly modified), and move the expansion of helo_data till after
675 the connection is made in the smtp transport (so it can use these
676 values).
677
9c57cbc0
PH
678PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
679
f3f065bb
PH
680PH/14 Added log_selector = +pid.
681
047bdd8c
PH
682PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
683
0ce9abe6
PH
684PH/16 Add ${if forany and ${if forall.
685
0e22dfd1
PH
686PH/17 Added dsn_from option to vary the From: line in DSNs.
687
4c590bd1
PH
688PH/18 Flush SMTP output before performing a callout, unless control =
689 no_callout_flush is set.
690
09945f1e
PH
691PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
692 was true (the default) a successful delivery failed to delete the retry
693 item, thus causing premature timeout of the address. The bug is now
694 fixed.
695
c51b8e75
PH
696PH/20 Added hosts_avoid_pipelining to the smtp transport.
697
e28326d8
PH
698PH/21 Long custom messages for fakedefer and fakereject are now split up
699 into multiline reponses in the same way that messages for "deny" and
700 other ACL rejections are.
701
75b1493f
PH
702PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
703 with slight modification.
704
7c5214ec
PH
705PH/23 Applied sieve patches from the maintainer "tracking the latest notify
706 draft, changing the syntax and factoring some duplicate code".
707
4311097e
PH
708PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
709 for deliveries of the second and subsequent messages over the same SMTP
710 connection.
711
29f89cad
PH
712PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
713 ${reduce, with only minor "tidies".
714
5e687460
SC
715SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
716
c3611384
PH
717PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
718 expansion side effects.
719
5a11a7b4
PH
720PH/27 When a message times out after an over-quota error from an Exim-imposed
721 quota, the bounce message says "mailbox is full". This message was not
722 being given when it was a system quota that was exceeded. It now should
723 be the same.
724
0e20aff9
MH
725MH/03 Made $recipients available in local_scan(). local_scan() already has
726 better access to the recipient list through recipients_list[], but
727 $recipients can be useful in postmaster-provided expansion strings.
728
ca86f471
PH
729PH/28 The $smtp_command and $smtp_command_argument variables were not correct
730 in the case of a MAIL command with additional options following the
731 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
732 were accidentally chopped off.
733
a14e5636
PH
734PH/29 SMTP synchronization checks are implemented when a command is read -
735 there is a check that no more input is waiting when there shouldn't be
736 any. However, for some commands, a delay in an ACL can mean that it is
737 some time before the response is written. In this time, more input might
738 arrive, invalidly. So now there are extra checks after an ACL has run for
739 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
740 pipelining has not been advertised.
741
ec95d1a6
PH
742PH/30 MH's patch to allow iscntrl() characters to be list separators.
743
42855d71
PH
744PH/31 Unlike :fail:, a custom message specified with :defer: was not being
745 returned in the SMTP response when smtp_return_error_details was false.
746 This has been fixed.
747
57c2c631
PH
748PH/32 Change the Dovecot authenticator to use read() and write() on the socket
749 instead of the C I/O that was originally supplied, because problems were
750 reported on Solaris.
751
58c01c94
PH
752PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
753 Exim which did not show up earlier: it was assuming that a call to
754 SSL_CTX_set_info_callback() might give an error value. In fact, there is
755 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
756 was a macro that became an assignment, so it seemed to work. This has
757 changed to a proper function call with a void return, hence the compile
758 error. Exim's code has been fixed.
759
dee5a20a
PH
760PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
761 cpus.
762
d2ee6114
PH
763PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
764
b2d5182b
PH
765PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
766
79749a79
PH
767PH/37 If a message is not accepted after it has had an id assigned (e.g.
768 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
769 "Completed" line in the log. When some messages of this type were
770 selected by exigrep, they were listed as "not completed". Others were
771 picked up by some special patterns. I have improved the selection
772 criteria to be more general.
79749a79 773
c456d9bb
PH
774PH/38 The host_find_failed option in the manualroute router can now be set
775 to "ignore", to completely ignore a host whose IP address cannot be
776 found. If all hosts are ignored, the behaviour is controlled by the new
777 host_all_ignored option.
778
cd9868ec
PH
779PH/39 In a list of hosts for manualroute, if one item (either because of multi-
780 homing or because of multiple MX records with /mx) generated more than
781 one IP address, and the following item turned out to be the local host,
782 all the secondary addresses of the first item were incorrectly removed
783 from the list, along with the local host and any following hosts (which
784 is what is supposed to happen).
785
ebeaf996
PH
786PH/40 When Exim receives a message, it writes the login name, uid, and gid of
787 whoever called Exim into the -H file. In the case of the daemon it was
788 behaving confusingly. When first started, it used values for whoever
789 started the daemon, but after a SIGHUP it used the Exim user (because it
790 calls itself on a restart). I have changed the code so that it now always
791 uses the Exim user.
792
2679d413
PH
793PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
794 message are rejected with the same error (e.g. no authentication or bad
795 sender address), and a DATA command is nevertheless sent (as can happen
796 with PIPELINING or a stupid MUA), the error message that was given to the
797 RCPT commands is included in the rejection of the DATA command. This is
798 intended to be helpful for MUAs that show only the final error to their
799 users.
800
84024b72
PH
801PH/42 Another patch from the Sieve maintainer.
802
8005d38e
SC
803SC/02 Eximstats - Differentiate between permanent and temporary rejects.
804 Eximstats - Fixed some broken HTML links and added missing column headers
805 (Jez Hancock).
806 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
807 columns for Rejects, Temp Rejects, Ham, and Spam rows.
808
3298c6c6
SC
809SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
810
a43a27c5
PH
811PH/43 Yet another patch from the Sieve maintainer.
812
58eb016e 813PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
814 the response to the final '.' that terminates a message, but only in the
815 case where the client has not sent further data following the '.'
816 (unfortunately, this is allowed). However, in many cases there won't be
817 any further data because there won't be any more messages to send. A call
818 to select() can be used: if it shows that the input is "ready", there is
819 either input waiting, or the socket has been closed. An attempt to read
820 the next input character can distinguish the two cases. Previously, Exim
58eb016e 821 would have sent an OK response which the client would never have see.
563b63fa
PH
822 This could lead to message repetition. This fix should cure that, at
823 least in a lot of common cases.
58eb016e 824
b43a74ea
PH
825PH/45 Do not advertise STARTTLS in response to HELP unless it would be
826 advertised in response to EHLO.
827
b4ed4da0 828
5dd1517f
PH
829Exim version 4.66
830-----------------
831
832PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
833 fixed by 4.65/MH/01 (is this a record?) are fixed:
834
835 (i) An empty string was always treated as zero by the numeric comparison
836 operators. This behaviour has been restored.
837
838 (ii) It is documented that the numeric comparison operators always treat
839 their arguments as decimal numbers. This was broken in that numbers
840 starting with 0 were being interpreted as octal.
841
842 While fixing these problems I realized that there was another issue that
843 hadn't been noticed. Values of message_size_limit (both the global option
844 and the transport option) were treated as octal if they started with 0.
845 The documentation was vague. These values are now always treated as
846 decimal, and I will make that clear in the documentation.
847
848
93cfa765
TK
849Exim version 4.65
850-----------------
851
852TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
853 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
854 versions. (#438)
855
d6066548
MH
856MH/01 Don't check that the operands of numeric comparison operators are
857 integers when their expansion is in "skipping" mode (fixes bug
858 introduced by 4.64-PH/07).
859
4362ff0d
PH
860PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
861 child addresses, Exim now panics and dies. Previously, because the count
862 is held in a short int, deliveries were likely to be lost. As such a
863 large number of recipients for a single message is ridiculous
864 (performance will be very, very poor), I have chosen to impose a limit
865 rather than extend the field.
866
93cfa765 867
944e9e9c
TF
868Exim version 4.64
869-----------------
aa41d2de 870
21d74bd9
TK
871TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
872 leftover -K file (the existence of which was triggered by #402).
873 While we were at it, introduced process PID as part of the -K
874 filename. This should rule out race conditions when creating
875 these files.
876
877TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
878 processing considerably. Previous code took too long for large mails,
879 triggering a timeout which in turn triggers #401.
880
881TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
882 in the DK code in transports.c. sendfile() is not really portable,
883 hence the _LINUX specificness.
944e9e9c
TF
884
885TF/01 In the add_headers option to the mail command in an Exim filter,
886 there was a bug that Exim would claim a syntax error in any
887 header after the first one which had an odd number of characters
888 in the field name.
889
2b1c6e3a
PH
890PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
891 callout verification, Exim cached a "reject" for the entire domain. This
892 is correct for most verifications, but it is not correct for a recipient
893 verification with use_sender or use_postmaster set, because in that case
894 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
895 case of MAIL FROM:<> rejection from other early rejections (e.g.
896 rejection of HELO). When verifying a recipient using a non-null MAIL
897 address, the cache is ignored if it shows MAIL FROM:<> rejection.
898 Whatever the result of the callout, the value of the domain cache is
899 left unchanged (for any other kind of callout, getting as far as trying
900 RCPT means that the domain itself is ok).
901
1f872c80
PH
902PH/02 Tidied a number of unused variable and signed/unsigned warnings that
903 gcc 4.1.1 threw up.
904
905PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
906 manifest itself as EPIPE rather than ECONNECT. When tidying away a
907 session, the daemon ignores ECONNECT errors and logs others; it now
908 ignores EPIPE as well.
909
d203e649
PH
910PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
911 (quoted-printable decoding).
912
cc2ed8f7 913PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 914 later the small subsequent patch to fix an introduced bug.
f951fd57 915
ddfcd446
PH
916PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
917
d45b1de8
PH
918PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
919
920PH/08 An error is now given if message_size_limit is specified negative.
921
38a0a95f 922PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 923 to be given (somewhat) arbitrary names.
38a0a95f 924
a2405d83
JJ
925JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
926 in 4.64-PH/09.
927
928JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
929 miscellaneous code fixes
930
6ea85e9a
PH
931PH/10 Added the log_reject_target ACL modifier to specify where to log
932 rejections.
933
26da7e20
PH
934PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
935 hostname. This is wrong, because it relates to the incoming message (and
936 probably the interface on which it is arriving) and not to the outgoing
937 callout (which could be using a different interface). This has been
938 changed to use the value of the helo_data option from the smtp transport
939 instead - this is what is used when a message is actually being sent. If
940 there is no remote transport (possible with a router that sets up host
941 addresses), $smtp_active_hostname is used.
6ea85e9a 942
14aa5a05 943PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 944 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
945 (a) The code assumed that strncpy() returns a negative number on buffer
946 overflow, which isn't the case. Replaced with Exim's string_format()
947 function.
948 (b) There were several signed/unsigned issues. I just did the minimum
949 hacking in of casts. There is scope for a larger refactoring.
950 (c) The code used strcasecmp() which is not a standard C function.
951 Replaced with Exim's strcmpic() function.
952 (d) The code set only $1; it now sets $auth1 as well.
953 (e) A simple test gave the error "authentication client didn't specify
954 service in request". It would seem that Dovecot has changed its
955 interface. Fortunately there's a specification; I followed it and
956 changed what the client sends and it appears to be working now.
957
ff75a1f7
PH
958PH/13 Added $message_headers_raw to provide the headers without RFC 2047
959 decoding.
960
e6f6568e
PH
961PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
962 address A is aliased to B and C, where B exists and C does not. Without
963 -v the output is "A verified" because verification stops after a
964 successful redirection if more than one address is generated. However,
965 with -v the child addresses are also verified. Exim was outputting "A
966 failed to verify" and then showing the successful verification for C,
967 with its parentage. It now outputs "B failed to verify", showing B's
968 parentage before showing the successful verification of C.
969
d6f6e0dc
PH
970PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
971 look up a TXT record in a specific list after matching in a combined
972 list.
973
322050c2
PH
974PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
975 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
976 they consult the DNS. I had assumed they would set it the way they
977 wanted; and indeed my experiments on Linux seem to show that in some
978 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
979 To be on the safe side, however, I have now made the interface to
980 host_find_byname() similar to host_find_bydns(), with an argument
981 containing the DNS resolver options. The host_find_byname() function now
982 sets these options at its start, just as host_find_bydns() does. The smtp
983 transport options dns_qualify_single and dns_search_parents are passed to
984 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
985 of host_find_byname() use the default settings of RES_DEFNAMES
986 (qualify_single) but not RES_DNSRCH (search_parents).
987
08955dd3
PH
988PH/17 Applied (a modified version of) Nico Erfurth's patch to make
989 spool_read_header() do less string testing, by means of a preliminary
990 switch on the second character of optional "-foo" lines. (This is
991 overdue, caused by the large number of possibilities that now exist.
992 Originally there were few.) While I was there, I also converted the
993 str(n)cmp tests so they don't re-test the leading "-" and the first
994 character, in the hope this might squeeze out yet more improvement.
995
1eccaa59
PH
996PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
997 flag allowing group syntax was set by the header_syntax check but not
998 turned off, possible causing trouble later; (2) The flag was not being
999 set at all for the header_verify test, causing "group"-style headers to
1000 be rejected. I have now set it in this case, and also caused header_
1001 verify to ignore an empty address taken from a group. While doing this, I
1002 came across some other cases where the code for allowing group syntax
1003 while scanning a header line wasn't quite right (mostly, not resetting
1004 the flag correctly in the right place). These bugs could have caused
1005 trouble for malformed header lines. I hope it is now all correct.
1006
602e59e5
PH
1007PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1008 with the "reply" argument non-NULL. The code, however (which originally
1009 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1010 but it didn't always do it. This confused somebody who was copying the
1011 code for some other use. I have removed all the tests.
1012
411ef850
PH
1013PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1014 feature that was used to support insecure browsers during the U.S. crypto
1015 embargo. It requires special client support, and Exim is probably the
1016 only MTA that supported it -- and would never use it because real RSA is
1017 always available. This code has been removed, because it had the bad
1018 effect of slowing Exim down by computing (never used) parameters for the
1019 RSA_EXPORT functionality.
1020
7befa435
PH
1021PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1022 authenticator to fail if there's a tab character in the incoming data
1023 (there should never be unless someone is messing about, as it's supposed
1024 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1025 if the connection is using TLS or if the remote IP is the same as the
1026 local IP, and the "valid-client-cert option" if a client certificate has
1027 been verified.
1028
48da4259 1029PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1030 authenticators. This can be used for authorization after authentication
1031 succeeds. (In the case of plaintext, it servers for both authentication
1032 and authorization.)
1033
48da4259
PH
1034PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1035 if any retry times were supplied.
1036
d1d5595c
PH
1037PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1038 connection, where there is no client IP address to check. In this
1039 situation, the verify now always succeeds.
1040
0ef732d9
PH
1041PH/25 Applied John Jetmore's -Mset patch.
1042
328895cc
PH
1043PH/26 Added -bem to be like -Mset, but loading a message from a file.
1044
fd700877
PH
1045PH/27 In a string expansion for a processed (not raw) header when multiple
1046 headers of the same name were present, leading whitespace was being
1047 removed from all of them, but trailing whitespace was being removed only
1048 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1049 before concatenation. Completely empty headers in a concatenation (as
1050 before) are ignored.
fd700877 1051
8dce1a6f
PH
1052PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1053 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1054
17af4a17
PH
1055PH/29 [Removed. This was a change that I later backed out, and forgot to
1056 correct the ChangeLog entry (that I had efficiently created) before
1057 committing the later change.]
f6c332bd
PH
1058
1059PH/30 Exim was sometimes attempting to deliver messages that had suffered
1060 address errors (4xx response to RCPT) over the same connection as other
1061 messages routed to the same hosts. Such deliveries are always "forced",
1062 so retry times are not inspected. This resulted in far too many retries
1063 for the affected addresses. The effect occurred only when there were more
1064 hosts than the hosts_max_try setting in the smtp transport when it had
1065 the 4xx errors. Those hosts that it had tried were not added to the list
1066 of hosts for which the message was waiting, so if all were tried, there
1067 was no problem. Two fixes have been applied:
1068
1069 (i) If there are any address or message errors in an SMTP delivery, none
1070 of the hosts (tried or untried) are now added to the list of hosts
1071 for which the message is waiting, so the message should not be a
1072 candidate for sending over the same connection that was used for a
1073 successful delivery of some other message. This seems entirely
1074 reasonable: after all the message is NOT "waiting for some host".
1075 This is so "obvious" that I'm not sure why it wasn't done
1076 previously. Hope I haven't missed anything, but it can't do any
1077 harm, as the worst effect is to miss an optimization.
1078
1079 (ii) If, despite (i), such a delivery is accidentally attempted, the
1080 routing retry time is respected, so at least it doesn't keep
1081 hammering the server.
1082
c1114884
PH
1083PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1084 in ${readsocket because some servers need this prod.
1085
7a0743eb
PH
1086PH/32 Added some extra debug output when updating a wait-xxx database.
1087
0d85fa3f
PH
1088PH/33 The hint "could be header name not terminated by colon", which has been
1089 given for certain expansion errors for a long time, was not being given
1090 for the ${if def:h_colon_omitted{... case.
1091
1bf43b78
PH
1092PH/34 The spec says: "With one important exception, whenever a domain list is
1093 being scanned, $domain contains the subject domain." There was at least
1094 one case where this was not true.
1095
520de300
PH
1096PH/35 The error "getsockname() failed: connection reset by peer" was being
1097 written to the panic log as well as the main log, but it isn't really
1098 panic-worthy as it just means the connection died rather early on. I have
1099 removed the panic log writing for the ECONNRESET error when getsockname()
1100 fails.
1101
48c7f9e2
PH
1102PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1103 runs only) independently of the message's sender address. This meant
1104 that, if the 4xx error was in fact related to the sender, a different
1105 message to the same recipient with a different sender could confuse
1106 things. In particualar, this can happen when sending to a greylisting
1107 server, but other circumstances could also provoke similar problems.
1108 I have changed the default so that the retry time for these errors is now
1109 based a combination of the sender and recipient addresses. This change
1110 can be overridden by setting address_retry_include_sender=false in the
1111 smtp transport.
1112
99ea1c86
PH
1113PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1114 remote server are returned as part of bounce messages. This was not
1115 happening for LMTP over a pipe (the lmtp transport), but now it is the
1116 same for both kinds of LMTP.
1117
a2042e78
PH
1118PH/38 Despite being documented as not happening, Exim was rewriting addresses
1119 in header lines that were in fact CNAMEs. This is no longer the case.
1120
4fbcfc2e
PH
1121PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1122 and queue runs started by the daemon processed all messages. This has
1123 been fixed so that -R and -S can now usefully be given with -q<time>.
1124
aa41d2de
PH
1125PH/40 Import PCRE release 6.7 (fixes some bugs).
1126
af561417
PH
1127PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1128
3cc66b45
PH
1129PH/42 Give an error if -q is specified more than once.
1130
194cc0e4
PH
1131PH/43 Renamed the variables $interface_address and $interface_port as
1132 $received_ip_address and $received_port, to make it clear that these
1133 values apply to message reception, and not to the outgoing interface when
1134 a message is delivered. (The old names remain recognized, of course.)
1135
a401ddaa
PH
1136PH/44 There was no timeout on the connect() call when using a Unix domain
1137 socket in the ${readsocket expansion. There now is.
1138
4e88a19f
PH
1139PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1140 be meaningful with "accept".
1141
d7d7b289
SC
1142SC/01 Eximstats V1.43
1143 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1144
1145SC/02 Eximstats V1.44
1146 Use a glob alias rather than an array ref in the generated
1147 parser. This improves both readability and performance.
1148
1149SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1150 Collect SpamAssassin and rejection statistics.
1151 Don't display local sender or destination tables unless
1152 there is data to show.
1153 Added average volumes into the top table text output.
1154
1155SC/04 Eximstats V1.46
1156 Collect data on the number of addresses (recipients)
1157 as well as the number of messages.
1158
1159SC/05 Eximstats V1.47
1160 Added 'Message too big' to the list of mail rejection
1161 reasons (thanks to Marco Gaiarin).
1162
1163SC/06 Eximstats V1.48
1164 Mainlog lines which have GMT offsets and are too short to
1165 have a flag are now skipped.
1166
1167SC/07 Eximstats V1.49 (Alain Williams)
1168 Added the -emptyok flag.
1169
1170SC/08 Eximstats V1.50
1171 Fixes for obtaining the IP address from reject messages.
1172
0ea2a468
JJ
1173JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1174 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1175 whitesspace changes from 4.64-PH/27
1176
1177JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1178 match 4.64-PH/13
1179
1180JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1181 are found, allow negative numbers in numeric criteria)
1182
1183JJ/06 exipick.20061117.2, added new $message_body_missing variable
1184
1185JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1186 to match changes made in 4.64-PH/43
1187
8a10f5a4
PH
1188PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1189
30e18802
PH
1190PH/47 Put in an explicit test for a DNS lookup of an address record where the
1191 "domain" is actually an IP address, and force a failure. This locks out
1192 those revolvers/nameservers that support "A-for-A" lookups, in
1193 contravention of the specifications.
1194
55728a4f
PH
1195PH/48 When a host name was looked up from an IP address, and the subsequent
1196 forward lookup of the name timed out, the host name was left in
1197 $sender_host_name, contrary to the specification.
d7d7b289 1198
d7837193
PH
1199PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1200 restricted to single-key lookups, Exim was not diagnosing an error if
1201 * or *@ was used with a query-style lookup.
1202
87054a31
PH
1203PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1204
ea2c01d2
MH
1205MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1206 long ago, but noone interested enough thought of it. Let's just say that
1207 the "1.1" means that there are some new functions that weren't there at
1208 some point in the past.
1209
e4fa6968
PH
1210PH/51 Error processing for expansion failure of helo_data from an smtp
1211 transport during callout processing was broken.
1212
56f5d9bd
PH
1213PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1214 tested/used via the -bh/-bhc/-bs options.
1215
922e1c28
PH
1216PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1217 bug, fixed in subsequent PCRE releases).
1218
21eb6e72
PH
1219PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1220 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1221
a0540757
PH
1222PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1223
944e9e9c 1224
478be7b0
SC
1225Exim version 4.63
1226-----------------
1227
1228SC/01 Use a glob alias rather than an array ref in eximstats generated
1229 parser. This improves both readability and performance.
1230
1231SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1232 Don't display local sender or destination tables in eximstats unless
1233 there is data to show.
1234 Added average volumes into the eximstats top table text output.
1235
1236SC/03 Collect data on the number of addresses (recipients) as well
1237 as the number of messages in eximstats.
1238
2b965a65
TF
1239TF/01 Correct an error in the documentation for the redirect router. Exim
1240 does (usually) call initgroups() when daemonizing.
478be7b0 1241
45b91596
PH
1242TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1243 with consistent privilege compared to when running as a daemon.
478be7b0 1244
c59f5781
TF
1245TF/03 Note in the spec that $authenticated_id is not set for local
1246 submissions from trusted users.
1247
90fc3069
TF
1248TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1249 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1250
6083aca0
TF
1251TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1252 by adding some example configuration directives to the default
1253 configuration file. A little bit of work is required to uncomment the
1254 directives and define how usernames and passwords are checked, but
1255 there is now a framework to start from.
1256
765b530f
PH
1257PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1258 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1259 without this. I don't know how relevant this is to other LDAP libraries.
1260
4e167a8c
PH
1261PH/02 Add the verb name to the "unknown ACL verb" error.
1262
4608d683
PH
1263PH/03 Magnus Holmgren's patch for filter_prepend_home.
1264
b8dc3e4a
PH
1265PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1266
5418e93b
PH
1267PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1268 directory not expanded when it should be if an expanded home directory
1269 was set for the address (which is overridden by the transport).
1270
b4a9bda2
PH
1271PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1272 libradius.
1273
45b91596
PH
1274PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1275 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1276 because it is too late at that time, and has no effect.
1277
5547e2c5
PH
1278PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1279 security issue with \' (bugzilla #107). I could not use the
1280 PQescapeStringConn() function, because it needs a PGconn value as one of
1281 its arguments.
1282
dbcef0ea
PH
1283PH/08 When testing addresses using -bt, indicate those final addresses that
1284 are duplicates that would not cause an additional delivery. At least one
1285 person was confused, thinking that -bt output corresponded to deliveries.
1286 (Suppressing duplicates isn't a good idea as you lose the information
1287 about possibly different redirections that led to the duplicates.)
1288
25257489
PH
1289PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1290 systems where poll() doesn't work, in particular OS X.
1291
c816d124
PH
1292PH/10 Added more information to debugging output for retry time not reached.
1293
a9ccd69a
PH
1294PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1295 operations in malware.c.
1296
75fa1910
PH
1297PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1298 signatures.
1299
a7d7aa58
PH
1300PH/13 If write_rejectlog was set false when logging was sent to syslog with
1301 syslog_duplication set false, log lines that would normally be written
1302 both the the main log and to the reject log were not written to syslog at
1303 all.
1304
42119b09
PH
1305PH/14 In the default configuration, change the use of "message" in ACL warn
1306 statements to "add_header".
1307
41609df5
PH
1308PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1309 not followed by a command (e.g. "seen endif").
1310
a5bd321b
PH
1311PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1312 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1313 latter.
1314
e85a7ad5 1315PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1316 so that it is now:
1317
e85a7ad5
PH
1318 ${if or { \
1319 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1320 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1321 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1322 }{no}{yes}}
1323
e85a7ad5
PH
1324 The Auto-Submitted: and various List- headers are standardised, whereas I
1325 don't think Precedence: ever was.
5dff5817 1326
d8fe1c03
PH
1327PH/18 Refactored debugging code in route_finduser() to show more information,
1328 in particular, the error code if getpwnam() issues one.
1329
16282d2b
PH
1330PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1331 This is apparently needed in addition to the PH/07 change above to avoid
1332 any possible encoding problems.
1333
35d40a98
PH
1334PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1335 but not after initializing Perl.
1336
034d99ab
PH
1337PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1338 output them only if debugging. By default they are written stderr,
1339 apparently, which is not desirable.
1340
6ec97b1b
PH
1341PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1342 queries.
1343
e22ca4ac
JJ
1344JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1345 --not options
1346
1347JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1348
33d73e3b
PH
1349PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1350 authenticated or an ident call has been made. Suppress the default
1351 values for $authenticated_id and $authenticated_sender (but permit -oMai
1352 and -oMas) when testing with -bh.
1353
9ecb03f3
PH
1354PH/24 Re-jigged the order of the tests in the default configuration so that the
1355 tests for valid domains and recipients precede the DNS black list and CSA
1356 tests, on the grounds that those ones are more expensive.
1357
084efe8d
PH
1358PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1359 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1360 This bug exists in every version of Exim that I still have, right back to
1361 0.12.
1362
366fc9f0
PH
1363PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1364 However, an attempt to turn on case-sensitivity in a regex key by
1365 including (?-i) didn't work because the subject string was already
1366 lowercased, and the effects were non-intuitive. It turns out that a
1367 one-line patch can be used to allow (?-i) to work as expected.
1368
c59f5781 1369
c887c79e
TF
1370Exim version 4.62
1371-----------------
1372
1373TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1374 other effects) broke the use of negated acl sub-conditions.
1375
1cce3af8
PH
1376PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1377 patch).
1378
afb3eaaf
PH
1379PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1380 "Deny" causes Exim to reject the incoming connection with a 554 error.
1381 Unfortunately, if there is a major crisis, such as a disk failure,
1382 tcp-wrappers gives "deny", whereas what one would like would be some
1383 kind of temporary error. A kludge has been added to help with this.
1384 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1385 554 error is used if errno is still zero or contains ENOENT (which occurs
1386 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1387 451 error is used.
1388
e173618b
PH
1389PH/03 Add -lutil to the default FreeBSD LIBS setting.
1390
dd16e114
PH
1391PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1392 errors. Otherwise a message that provokes a temporary error (when other
1393 messages do not) can cause a whole host to time out.
1394
f7fd3850
PH
1395PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1396 addresses were routed directly to files or pipes from a redirect router.
1397 File deliveries just didn't batch; pipe deliveries might have suffered
1398 odd errors.
1399
d87df92c
PH
1400PH/06 A failure to get a lock for a hints database would erroneously always say
1401 "Failed to get write lock", even when it was really a read lock.
1402
7e9f683d
PH
1403PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1404 of 0600. This has been changed to use the value of the lockfile_mode
1405 option (which defaults to 0600).
1406
bfad5236
PH
1407PH/08 Applied small patch from the Sieve maintainer.
1408
01c490df
PH
1409PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1410 folder from quota calculations, a direct delivery into this folder messed
1411 up the contents of the maildirsize file. This was because the regex was
1412 used only to exclude .Trash (or whatever) when the size of the mailbox
1413 was calculated. There was no check that a delivery was happening into an
1414 excluded directory. This bug has been fixed by ignoring all quota
1415 processing for deliveries into excluded directories.
1416
d6629cdc
PH
1417PH/10 Added the maildirfolder_create_regex option to appendfile.
1418
1cce3af8 1419
214e2000
PH
1420Exim version 4.61
1421-----------------
1422
1423PH/01 The code for finding all the local interface addresses on a FreeBSD
1424 system running IPv6 was broken. This may well have applied to all BSD
1425 systems, as well as to others that have similar system calls. The broken
1426 code found IPv4 interfaces correctly, but gave incorrect values for the
1427 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1428 that it would not match correctly against @[] and not recognize the IPv6
1429 addresses as local.
1430
f9daeae0
PH
1431PH/02 The ipliteral router was not recognizing addresses of the form user@
1432 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1433
7e66e54d
PH
1434PH/03 Added disable_ipv6.
1435
c8ea1597
PH
1436PH/04 Changed $reply_address to use the raw form of the headers instead of the
1437 decoded form, because it is most often used to construct To: headers
1438 lines in autoreplies, and the decoded form may well be syntactically
1439 invalid. However, $reply_address has leading white space removed, and all
1440 newlines turned into spaces so that the autoreply transport does not
1441 grumble.
1442
911f6fde
PH
1443PH/05 If group was specified without a user on a router, and no group or user
1444 was specified on a transport, the group from the router was ignored.
1445
47ca6d6c
PH
1446PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1447 for visible compile-time settings that can be used to change these
1448 numbers, for those that want even more. Backwards compatibility with old
1449 spool files has been maintained. However, going back to a previous Exim
1450 release will lost any variables that are in spool files.
1451
ed0e9820
PH
1452PH/07 Two small changes when running in the test harness: increase delay when
1453 passing a TCP/IP connection to a new process, in case the original
1454 process has to generate a bounce, and remove special handling of
1455 127.0.0.2 (sic), which is no longer necessary.
1456
eff37e47
PH
1457PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1458 be the same on different OS.
1459
1921d2ea
PH
1460PH/09 Moved a debug statement in filter processing to avoid a race problem when
1461 testing.
1462
b3f69ca8
JJ
1463JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1464 whether --show-vars was specified or not
1465
1466JJ/02 exipick: Added support for new ACL variable spool format introduced
1467 in 4.61-PH/06
1468
424a1c63
PH
1469PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1470 syntactically invalid From: or Reply-to: line, and a filter used this to
1471 generate an autoreply, and therefore failed to obtain an address for the
1472 autoreply, Exim could try to deliver to a non-existent relative file
1473 name, causing unrelated and misleading errors. What now happens is that
1474 it logs this as a hard delivery error, but does not attempt to create a
1475 bounce message.
1476
7a100415
PH
1477PH/11 The exinext utility has a -C option for testing purposes, but although
1478 the given file was scanned by exinext itself; it wasn't being passed on
1479 when Exim was called.
1480
19b9dc85
PH
1481PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1482 an end-of-file indication when reading a command response.
1483
309bd837
PH
1484PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1485 compiled. In many other places in Exim, IPv6 addresses are always
1486 recognized, so I have changed this. It also means that IPv4 domain
1487 literals of the form [IPV4:n.n.n.n] are now always recognized.
1488
59e82a2a
PH
1489PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1490 used if the router is not running as root, for example, when verifying at
1491 ACL time, or when using -bh. The debugging output from this situation was
1492 non-existent - all you got was a failure to exec. I have made two
1493 changes:
1494
1495 (a) Failures to set uid/gid, the current directory, or a process leader
1496 in a subprocess such as that created by queryprogram now generate
1497 suitable debugging ouput when -d is set.
1498
1499 (b) The queryprogram router detects when it is not running as root,
1500 outputs suitable debugging information if -d is set, and then runs
1501 the subprocess without attempting to change uid/gid.
1502
9edc04ce
PH
1503PH/15 Minor change to Makefile for building test_host (undocumented testing
1504 feature).
1505
1349e1e5
PH
1506PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1507 additional section of a DNS packet that returns MX or SRV records.
1508 Instead, it always explicitly searches for A/AAAA records. This avoids
1509 major problems that occur when a DNS server includes only records of one
1510 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1511 fixed another bug: if SRV records were looked up and the corresponding
1512 address records were *not* found in the additional section, the port
1513 values from the SRV records were lost.
1514
ea49d0e1
PH
1515PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1516 using the correct key (the original address) when searching the retry
1517 rules in order to find which one to use for generating the retry hint.
1518
064a94c9
PH
1519PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1520 adding the default one. Similarly, if it contains a Reply-To: header, the
1521 errors_reply_to option, if set, is not used.
1522
727071f8
PH
1523PH/19 When calculating a retry time, Exim used to measure the "time since
1524 failure" by looking at the "first failed" field in the retry record. Now
1525 it does not use this if it is later than than the arrival time of the
1526 message. Instead it uses the arrival time. This makes for better
1527 behaviour in cases where some deliveries succeed, thus re-setting the
1528 "first failed" field. An example is a quota failure for a huge message
1529 when small messages continue to be delivered. Without this change, the
1530 "time since failure" will always be short, possible causing more frequent
1531 delivery attempts for the huge message than are intended.
dd16e114 1532 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1533
f78eb7c6
PH
1534PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1535 $1, $2, $3) because the numerical variables can be reset during some
1536 expansion items (e.g. "match"), thereby losing the authentication data.
1537
21c28500
PH
1538PH/21 Make -bV show the size of off_t variables so that the test suite can
1539 decide whether to run tests for quotas > 2G.
1540
1541PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1542 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1543 filecount value is greater than 2G or if a quota value is greater than 2G
1544 on a system where the size of off_t is not greater than 4, a panic error
1545 is given.
1546
1688f43b
PH
1547PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1548 never match. The debug and -bh output now contains an explicit error
1549 message indicating a malformed IPv4 address or mask.
1550
1551PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1552 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1553 PH/23 above applies.
1554
9675b384
PH
1555PH/25 Do not write to syslog when running in the test harness. The only
1556 occasion when this arises is a failure to open the main or panic logs
1557 (for which there is an explicit test).
1558
6a3f1455
PH
1559PH/26 Added the /no_tell option to "control=freeze".
1560
dac79d3e
PH
1561PH/27 If a host name lookup failed very early in a connection, for example, if
1562 the IP address matched host_lookup and the reverse lookup yielded a name
1563 that did not have a forward lookup, an error message of the form "no IP
1564 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1565 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1566
5977a0b3
PH
1567PH/28 An enabling patch from MH: add new function child_open_exim2() which
1568 allows the sender and the authenticated sender to be set when
1569 submitting a message from within Exim. Since child_open_exim() is
1570 documented for local_scan(), the new function should be too.
1571
c91535f3
PH
1572PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1573 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1574 results in an empty string is now treated as unset.
1575
0d46a8c8
PH
1576PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1577
278c6e6c
PH
1578PH/31 Added sender_verify_fail logging option.
1579
2cbb4081
PH
1580PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1581 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1582 tidied the source and removed it altogether.
1583
3eef829e
PH
1584PH/33 When a queue run was abandoned because the load average was too high, a
1585 log line was always written; now it is written only if the queue_run log
1586 selector is set. In addition, the log line for abandonment now contains
1587 information about the queue run such as the pid. This is always present
1588 in "start" and "stop" lines but was omitted from the "abandon" line.
1589
1ab95fa6
PH
1590PH/34 Omit spaces between a header name and the colon in the error message that
1591 is given when verify = headers_syntax fails (if there are lots of them,
1592 the message gets confusing).
1593
230205fc
PH
1594PH/35 Change the default for dns_check_names_pattern to allow slashes within
1595 names, as there are now some PTR records that contain slashes. This check
1596 is only to protect against broken name servers that fall over on strange
1597 characters, so the fact that it applies to all lookups doesn't matter.
1598
75e0e026
PH
1599PH/36 Now that the new test suite is complete, we can remove some of the
1600 special code in Exim that was needed for the old test suite. For example,
1601 sorting DNS records because real resolvers return them in an arbitrary
1602 order. The new test suite's fake resolver always returns records in the
1603 same order.
1604
1605PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1606 bounces) except when queue_only is set, to avoid logging races between
1607 the different processes.
1608
145396a6
PH
1609PH/38 Panic-die if .include specifies a non-absolute path.
1610
3cd34f13
PH
1611PH/39 A tweak to the "H" retry rule from its user.
1612
11121d3d
JJ
1613JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1614 a label. They prevented compilation on older perls.
1615
1616JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1617 a warning to be raised on newish perls.
1618
1619JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1620 on queue. Changes to match documented behaviour of showing count of
1621 messages matching specified criteria.
1622
8def5aaf
PH
1623PH/40 Changed the default ident timeout from 30s to 5s.
1624
929ba01c
PH
1625PH/41 Added support for the use of login_cap features, on those BSD systems
1626 that have them, for controlling the resources used by pipe deliveries.
1627
2632889e
PH
1628PH/42 The content-scanning code uses fopen() to create files in which to put
1629 message data. Previously it was not paying any attention to the mode of
1630 the files. Exim runs with umask(0) because the rest of the code creates
1631 files with open(), and sets the required mode explicitly. Thus, these
1632 files were ending up world-writeable. This was not a big issue, because,
1633 being within the spool directory, they were not world-accessible. I have
1634 created a function called modefopen, which takes an additional mode
1635 argument. It sets umask(777), creates the file, chmods it to the required
1636 mode, then resets the umask. All the relevant calls to fopen() in the
1637 content scanning code have been changed to use this function.
1638
944a9c55
PH
1639PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1640 to 24 hours. This avoids potential overflow problems when processing G
1641 and H retry rules. I suspect nobody ever tinkers with this value.
1642
4a23603b
PH
1643PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1644
4730f942
PH
1645PH/45 When the plaintext authenticator is running as a client, the server's
1646 challenges are checked to ensure they are valid base64 strings. By
1647 default, the authentication attempt is cancelled if an invalid string is
1648 received. Setting client_ignore_invalid_base64 true ignores these errors.
1649 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1650 they are received. Thus, the responses can be made to depend on the
1651 challenges. If an invalid string is ignored, an empty string is placed in
1652 the variable.
1653
30dba1e6
PH
1654PH/46 Messages that are created by the autoreply transport now contains a
1655 References: header, in accordance with RFCs 2822 and 3834.
1656
382afc6b
PH
1657PH/47 Added authenticated_sender_force to the smtp transport.
1658
a86229cf
PH
1659PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1660
50c99ba6
PH
1661PH/49 Installed latest patch from the Sieve maintainer.
1662
d35e429d
PH
1663PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1664 was also set, the appendfile transport was unnecessarily scanning a
1665 directory of message files (e.g. for maildir delivery) to find the count
1666 of files (along with the size), even though it did not need this
1667 information. It now does the scan only if it needs to find either the
1668 size of the count of files.
1669
f90d018c
PH
1670PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1671
75def545
PH
1672PH/52 Two bugs concerned with error handling when the smtp transport is
1673 used in LMTP mode:
1674
1675 (i) Exim was not creating retry information for temporary errors given
1676 for individual recipients after the DATA command when the smtp transport
1677 was used in LMTP mode. This meant that they could be retried too
1678 frequently, and not timed out correctly.
1679
1680 (ii) Exim was setting the flag that allows error details to be returned
1681 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1682 recipients that were returned after the DATA command.
1683
1684PH/53 This is related to PH/52, but is more general: for any failing address,
1685 when detailed error information was permitted to be returned to the
1686 sender, but the error was temporary, then after the final timeout, only
1687 "retry timeout exceeded" was returned. Now it returns the full error as
1688 well as "retry timeout exceeded".
1689
c46782ef
PH
1690PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1691 do this, and (what is worse) MTAs that accept it.
1692
71fafd95
PH
1693PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1694 will now be deprecated.
1695
2c5db4fd
PH
1696PH/56 New os.c-cygwin from the Cygwin maintainer.
1697
9cf6b11a
JJ
1698JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1699 formats (previously only available in exim formats via -bpr, -bpru,
1700 and -bpra. Now also available in native and exiqgrep formats)
1701
1702JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1703 with very large, slow to parse queues
1704
1705JJ/08 exipick: added ! as generic prefix to negate any criteria format
1706
1707JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1708
898d150f
PH
1709PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1710 responses to authentication challenges, though it was showing the
1711 challenges; (ii) I've removed the CR characters from the debug output for
1712 SMTP output lines.
1713
46218253
PH
1714PH/58 Allow for the insertion of a newline as well as a space when a string
1715 is turned into more than one encoded-word during RFC 2047 encoding. The
1716 Sieve code now uses this.
1717
e97957bc
PH
1718PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1719 data_4xx, lost_connection, tls_required.
1720
81e509d7
PH
1721PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1722 message was being sent as an SMTP response.
1723
3d240ff7
PH
1724PH/61 Add -l and -k options to exicyclog.
1725
b37c4101
PH
1726PH/62 When verifying, if an address was redirected to one new address, so that
1727 verification continued, and the new address failed or deferred after
1728 having set something in $address_data, the value of $address_data was not
1729 passed back to the ACL. This was different to the case when no
1730 redirection occurred. The value is now passed back in both cases.
1731
79378e0f
PH
1732PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1733 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1734 use login_cap.h, so on its own it isn't the distinguishing feature. The
1735 new name refers directly to the setclassresources() function.
1736
e49c7bb4
PH
1737PH/65 Added configuration files for NetBSD3.
1738
d114ec46
PH
1739PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1740
f3d7df6c
PH
1741PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1742 is preferred over IPv4.
1743
715ab376
PH
1744PH/68 The bounce_return_message and bounce_return_body options were not being
1745 honoured for bounces generated during the reception of non-SMTP messages.
1746 In particular, this applied to messages rejected by the ACL. This bug has
1747 been fixed. However, if bounce_return_message is true and bounce_return_
1748 body is false, the headers that are returned for a non-SMTP message
1749 include only those that have been read before the error was detected.
1750 (In the case of an ACL rejection, they have all been read.)
1751
6b31b150
PH
1752PH/69 The HTML version of the specification is now built in a directory called
1753 spec_html instead of spec.html, because the latter looks like a path with
1754 a MIME-type, and this confuses some software.
1755
1756PH/70 Catch two compiler warnings in sieve.c.
1757
d515a917
PH
1758PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1759 function verify_get_ident() calls ip_connect() to connect a socket, but
1760 if the "connect()" function timed out, ip_connect() used to close the
1761 socket. However, verify_get_ident() also closes the socket later, and in
1762 between Exim writes to the log, which may get opened at this point. When
1763 the socket was closed in ip_connect(), the log could get the same file
1764 descriptor number as the socket. This naturally causes chaos. The fix is
1765 not to close the socket in ip_connect(); the socket should be closed by
1766 the function that creates it. There was only one place in the code where
1767 this was missing, in the iplookup router, which I don't think anybody now
1768 uses, but I've fixed it anyway.
1769
9b8fadde
PH
1770PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1771 well as to direct DNS lookups. Otherwise the handling of names in host
1772 lists is inconsistent and therefore confusing.
1773
214e2000 1774
5de37277
PH
1775Exim version 4.60
1776-----------------
1777
cc38ddbf
PH
1778PH/01 Two changes to the default runtime configuration:
1779
1780 (1) Move the checks for relay_from_hosts and authenticated clients from
1781 after to before the (commented out) DNS black list checks.
1782
1783 (2) Add control=submission to the relay_from_hosts and authenticated
1784 clients checks, on the grounds that messages accepted by these
1785 statements are most likely to be submissions.
5de37277 1786
72fdd6ae
PH
1787PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1788
1789 (1) Generate an error if the third argument for the ${prvs expansion is
1790 not a single digit.
1791
1792 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1793 string.
1794
1795 (3) Reset the variables that are obtained from the first argument of
1796 ${prvscheck and used in the second argument before leaving the code,
1797 because their memory is reclaimed, so using them afterwards may do
1798 silly things.
1799
1800 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1801 one (it's much easier than Tom thought :-).
1802
1803 (5) Because of (4), we can now allow for the use of $prvscheck_result
1804 inside the third argument.
cb9328de 1805
cb741023
PH
1806PH/03 For some reason, the default setting of PATH when running a command from
1807 a pipe transport was just "/usr/bin". I have changed it to
1808 "/bin:/usr/bin".
1809
f174f16e
PH
1810PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1811 anything to be listed in the output from -bV.
b2f5a032 1812
c25242d7
PH
1813PH/05 When a filter generated an autoreply, the entire To: header line was
1814 quoted in the delivery log line, like this:
1815
1816 => >A.N.Other <ano@some.domain> <original@ddress> ...
1817
1818 This has been changed so that it extracts the operative address. There
1819 may be more than one such address. If so, they are comma-separated, like
1820 this:
1821
1822 => >ano@some.domain,ona@other.domain <original@ddress> ...
1823
82c19f95
PH
1824PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1825 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1826 not being looked up in the rDNS to get a host name, Exim was showing the
1827 IP address twice in Received: lines, even though the IP addresses were
1828 identical. For example:
1829
1830 Received: from [1.2.3.4] (helo=[1.2.3.4])
1831
1832 However, if the real host name was known, it was omitting the HELO data
1833 if it matched the actual IP address. This has been tidied up so that it
1834 doesn't show the same IP address twice.
1835
d7ffbc12
PH
1836PH/07 When both +timestamp and +memory debugging was on, the value given by
1837 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1838 called by the debug printing, thereby overwriting the timestamp buffer.
1839 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1840
9f526266
PH
1841PH/08 When the original message was included in an autoreply transport, it
1842 always said "this is a copy of the message, including all the headers",
1843 even if body_only or headers_only was set. It now gives an appropriate
1844 message.
1845
87fcc8b9
PH
1846PH/09 Applied a patch from the Sieve maintainer which:
1847
1848 o fixes some comments
1849 o adds the (disabled) notify extension core
1850 o adds some debug output for the result of if/elsif tests
1851 o points to the current vacation draft in the documentation
1852 and documents the missing references header update
1853
1854 and most important:
1855
1856 o fixes a bug in processing the envelope test (when testing
1857 multiple envelope elements, the last element determinted the
1858 result)
1859
456682f5
PH
1860PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1861 Electronic Mail") by including:
1862
1863 Auto-submitted: auto-generated
1864
1865 in the messages that it generates (bounce messages and others, such as
1866 warnings). In the case of bounce messages for non-SMTP mesages, there was
1867 also a typo: it was using "Auto_submitted" (underscore instead of
1868 hyphen). Since every message generated by Exim is necessarily in response
1869 to another message, thes have all been changed to:
1870
1871 Auto-Submitted: auto-replied
1872
1873 in accordance with these statements in the RFC:
1874
1875 The auto-replied keyword:
1876
1877 - SHOULD be used on messages sent in direct response to another
1878 message by an automatic process,
1879
1880 - MUST NOT be used on manually-generated messages,
1881
1882 - MAY be used on Delivery Status Notifications (DSNs) and Message
1883 Disposition Notifications (MDNs),
1884
1885 - MUST NOT be used on messages generated by automatic or periodic
1886 processes, except for messages which are automatic responses to
1887 other messages.
1888
3e46c1aa
PH
1889PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1890 to the default Received: header definition.
456682f5 1891
49826d12
PH
1892PH/12 Added log selector acl_warn_skipped (default on).
1893
eba0c039
PH
1894PH/13 After a successful wildlsearch lookup, discard the values of numeric
1895 variables because (a) they are in the wrong storage pool and (b) even if
1896 they were copied, it wouldn't work properly because of the caching.
1897
a0d6ba8a
PH
1898PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1899 checking when decoding. Apparently there are clients that generate
1900 overlong encoded strings. Why am I not surprised?
1901
f0917727
PH
1902PH/15 If the first argument of "${if match_address" was not empty, but did not
1903 contain an "@" character, Exim crashed. Now it writes a panic log message
1904 and treats the condition as false.
1905
096fee00
PH
1906PH/16 In autoreply, treat an empty string for "once" the same as unset.
1907
024bd3c2
PH
1908PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1909 extension "envelope-auth". The code is finished and in agreement with
1910 other implementations, but there is no documentation so far and in fact,
1911 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1912 not changing the active code.
1913
1914 Print executed "if" and "elsif" statements when debugging is used. This
1915 helps a great deal to understand what a filter does.
1916
1917 Document more things not specified clearly in RFC3028. I had all this
1918 sorted out, when out of a sudden new issues came to my mind. Oops."
1919
df199fec
PH
1920PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1921 (Bugzilla #53).
1922
d27f1df3
PH
1923PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1924 canonical form (as documented). However, after a host name lookup from
1925 the IP address, check_host() was doing a simple string comparison with
1926 addresses acquired from the DNS when checking that the found name did
1927 have the original IP as one of its addresses. Since any found IPv6
1928 addresses are likely to be in abbreviated form, the comparison could
1929 fail. Luckily, there already exists a function for doing the comparison
1930 by converting both addresses to binary, so now that is used instead of
1931 the text comparison.
1932
96776534
PH
1933PH/20 There was another similar case to PH/19, when a complete host name was
1934 given in a host list; looking up its IP address could give an abbreviated
1935 form, whereas the current host's name might or might not be abbreviated.
1936 The same fix has been applied.
1937
5de37277 1938
9a799bc0
PH
1939Exim version 4.54
1940-----------------
1941
1942PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1943 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1944 It now does.
1945
99a4b039
PH
1946PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1947 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1948
1949PH/03 Typo: missing ".o" in src/pcre/Makefile.
1950
4b233853
PH
1951PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1952 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1953 Also, for "Auto-Submitted", treat anything other than "no" as
1954 non-personal, in accordance with RFC 3834. (Previously it treated
1955 anything starting "auto-" as non-personal.)
1956
8857ccfd
PH
1957TF/01 The control=submission/name=... option had a problem with syntax
1958 errors if the name included a slash character. The /name= option
1959 now slurps the rest of the string, so it can include any characters
1960 but it must come last in the list of options (after /sender_retain
1961 or /domain=).
1962
433a2980
PH
1963PH/05 Some modifications to the interface to the fake nameserver for the new
1964 testing suite.
1965
3e46c1aa 1966
9a799bc0 1967
e3a311ba
TK
1968Exim version 4.53
1969-----------------
1970
1971TK/01 Added the "success_on_redirect" address verification option. See
1972 NewStuff for rationale and an example.
1973
13b685f9
PH
1974PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1975
395ff96d
PH
1976PH/02 Patch to exigrep to allow it to work on syslog lines.
1977
5b68f6e4
PH
1978PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1979 fread() to skip over the body file's header line, because in Cygwin the
1980 header line is locked and is inaccessible.
1981
1ab52c69
PH
1982PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1983 co-exist for some time) to make it clear that it is the Exim ID that is
1984 referenced, not the Message-ID: header line.
1985
b07e6aa3
PH
1986PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1987 string_format() function, because snprintf() does not exist on all
1988 operating systems.
1989
254e032f
PH
1990PH/06 The use of forbid_filter_existstest now also locks out the use of the
1991 ${stat: expansion item.
1992
3af76a81
PH
1993PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1994 protocol synchronization error", to keep the pedants happy.
1995
2548ba04
PH
1996PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1997 well as for IRIX systems, when gcc is being used. See the host.c source
1998 file for comments.
1999
b6c6011d
PH
2000PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2001
cf39cf57
PH
2002PH/10 Named domain lists were not working if used in a queue_smtp_domains
2003 setting.
2004
f1513293
PH
2005PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2006 transport and to the smtp transport in LMTP mode.
2007
727549a4
PH
2008TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2009
af46795e
PH
2010PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2011 run a filter in a subprocess. This could lead to confusion in subsequent
2012 lookups in the parent process. There should also be a search_tidyup() at
2013 the end of the subprocess.
2014
d7b47fd0
PH
2015PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2016 only if the host matched helo_try_verify_hosts, which caused the
2017 verification to occur when the EHLO/HELO command was issued. The ACL just
2018 tested the remembered result. Now, if a previous verification attempt has
2019 not happened, "verify = helo" does it there and then.
2020
ee744174
JJ
2021JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2022
b582ab87
PH
2023TK/03 Fix log output including CR from clamd.
2024
41a13e0a
PH
2025PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2026 exist provoked a memory error which could cause a segfault.
2027
f625cc5a
PH
2028PH/15 Installed PCRE 6.2
2029
2030PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2031
21f7af35
PH
2032PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2033 of the problem. Specifically, suggested +O2 rather than +O1 for the
2034 HP-UX compiler.
2035
31480e42
PH
2036PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2037
2d280592
PH
2038PH/20 If a delivery was routed to a non-standard port by means of an SRV
2039 record, the port was not correctly logged when the outgoing_port log
2040 selector was set (it logged the transort's default port).
2041
7cd1141b
PH
2042PH/21 Added support for host-specific ports to manualroute, queryprogram,
2043 fallback_hosts, and "hosts" in the smtp transport.
2044
2045PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2046 host errors such as "Connection refused".
2047
750af86e
PH
2048PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2049 authentication with radiusclient 0.4.9:
2050
2051 - Error returned from rc_read_config was caught wrongly
2052 - Username/password not passed on to radius server due to wrong length.
2053
2054 The presumption is that some radiusclient API changes for 4.51/PH/17
2055 were not taken care of correctly. The code is still untested by me (my
2056 Linux distribution still has 0.3.2 of radiusclient), but it was
2057 contributed by a Radius user.
2058
2059PH/24 When doing a callout, the value of $domain wasn't set correctly when
2060 expanding the "port" option of the smtp transport.
2061
4304270b
TK
2062TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2063 while reading a MIME header. Thanks to Tom Hughes for a patch.
2064
750af86e
PH
2065PH/24 Include config.h inside local_scan.h so that configuration settings are
2066 available.
2067
64ffc24f
PH
2068PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2069 that in an ACL for RCPT (for example), you can examine exactly what was
2070 received.
2071
5dd9625b
PH
2072PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2073 commands, but it was not correctly comparing the address with the actual
2074 client host address. Thus, it would show the EHLO address in Received:
2075 header lines when this was not necessary.
2076
5591031b
PH
2077PH/27 Added the % operator to ${eval:}.
2078
ba18e66a
PH
2079PH/28 Exim tries to create and chdir to its spool directory when it starts;
2080 it should be ignoring failures (because with -C, for example, it has lost
2081 privilege). It wasn't ignoring creation failures other than "already
2082 exists".
2083
9cec981f
PH
2084PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2085 -bV or -d is used.
2086
aa2b5c79
PH
2087PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2088 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2089 too many continuations, the temporary file was not being removed, and the
2090 return code was incorrect.
aa2b5c79 2091
48a53b7f
PH
2092PH/31 Missing "BOOL" in function definition in filtertest.c.
2093
1c59d63b
PH
2094PH/32 Applied Sieve patches from the maintainer.
2095
671012da
TK
2096TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2097
1509d3a8
PH
2098PH/33 Added "verify = not_blind".
2099
2100PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2101 Local/Makefile (with some defaults set). These are used in built scripts
2102 such as exicyclog, but they have never been used in the exim_install
2103 script (though there are many overriding facilities there). I have
2104 arranged that the exim_install script now takes note of these two
2105 settings.
2106
2107PH/35 Installed configuration files for Dragonfly.
2108
2fe1a124
PH
2109PH/36 When a locally submitted message by a trusted user did not contain a
2110 From: header, and the sender address was obtained from -f or from an SMTP
2111 MAIL command, and the trusted user did not use -F to supply a sender
2112 name, $originator_name was incorrectly used when constructing a From:
2113 header. Furthermore, $originator_name was used for submission mode
2114 messages from external hosts without From: headers in a similar way,
2115 which is clearly wrong.
2116
8800895a
PH
2117PH/37 Added control=suppress_local_fixups.
2118
ccfdb010
PH
2119PH/38 When log_selector = +received_sender was set, and the addition of the
2120 sender made the log line's construction buffer exactly full, or one byte
2121 less than full, an overflow happened when the terminating "\n" was
2122 subsequently added.
2123
1130bfb0
PH
2124PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2125 when the result of a list match is failure because a DNS lookup failed.
2126
ebcb507f
PH
2127PH/40 RM_COMMAND is now used in the building process.
2128
c35e155c
PH
2129PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2130 the "build-* directories that it finds.
2131
95d1f782
PH
2132PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2133 address in a domain literal was a prefix of an interface address.
2134
fd6de02e
PH
2135PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2136 when verifying a sender address, unless rewrite_headers is false.
2137
58de37c5
PH
2138PH/44 Wrote a long comment about why errors_to addresses are verified as
2139 recipients, not senders.
2140
261cf466
TF
2141TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2142 the ratelimit ACL was added.
2143
3ee512ff
PH
2144PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2145
e08c430f
PH
2146PH/46 Added extra information about PostgreSQL errors to the error string.
2147
bef5a11f
PH
2148PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2149 avoiding the need to install special zones in a real server. This is
2150 backwards compatible; if it can't find the fake resolver, it drops back.
2151 Thus, both old and new test suites can be run.
2152
7546de58
TF
2153TF/02 Added util/ratelimit.pl
2154
e5d5a95f
TF
2155TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2156 clock is set back in time.
2157
2e88a017
TF
2158TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2159 Candler <B.Candler@pobox.com>.
2160
a5f65aa4
TF
2161TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2162 OK for addresses that are the result of redirections.
2163
e7726cbf
PH
2164PH/48 A number of further additions for the benefit of the new test suite,
2165 including a fake gethostbyname() that interfaces to the fake DNS resolver
2166 (see PH/47 above).
2167
a7fdad5b
TF
2168TF/06 The fix for widen_domains has also been applied to qualify_single and
2169 search_parents which are the other dnslookup options that can cause
2170 header rewrites.
2171
6af56900
PH
2172PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2173 type ("H").
2174
0925ede6
PH
2175PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2176
66afa403
TF
2177TF/07 Exim produced the error message "an SRV record indicated no SMTP
2178 service" if it encountered an MX record with an empty target hostname.
2179 The message is now "an MX or SRV record indicated no SMTP service".
2180
0154e85a
TF
2181TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2182 if the DNS of the sending site is misconfigured. This is quite a
2183 common situation. This change restores the behaviour of treating a
2184 helo verification defer as a failure.
2185
16f12c76
PH
2186PH/51 If self=fail was set on a router, the bounce message did not include the
2187 actual error message.
2188
bbe902f0 2189
e5a9dba6
PH
2190Exim version 4.52
2191-----------------
2192
2193TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2194
22c3b60b
PH
2195PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2196 command itself ended in error, the underlying message about the transport
2197 filter timeout was being overwritten with the pipe command error. Now the
2198 underlying error message should be appended to the second error message.
2199
06a9b4b5
PH
2200TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2201
c1ac6996
PH
2202PH/02 Reduce the amount of output that "make" produces by default. Full output
2203 can still be requested.
2204
9c7a242c
PH
2205PH/03 The warning log line about a condition test deferring for a "warn" verb
2206 was being output only once per connection, rather than after each
2207 occurrence (because it was using the same function as for successful
2208 "warn" verbs). This seems wrong, so I have changed it.
2209
87ba3f5f
PH
2210TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2211 it should not have, which might have caused a crash in the right
2212 circumstances, but probably never did.
2213
2214PH/04 Installed a modified version of Tony Finch's patch to make submission
2215 mode fix the return path as well as the Sender: header line, and to
2216 add a /name= option so that you can make the user's friendly name appear
2217 in the header line.
2218
29aba418
TF
2219TF/03 Added the control = fakedefer ACL modifier.
2220
fe0dab11
TF
2221TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2222 Mark Lowes for thorough testing.
870f6ba8 2223
11d337a4
TK
2224TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2225
2226TK/03 Merged latest SRS patch from Miles Wilton.
2227
415c8f3b
PH
2228PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2229 with the definition in sysexits.h (which is #included earlier).
2230 Fortunately, Exim does not actually use EX_OK. The code used to try to
2231 preserve the sysexits.h value, by assumimg that macro definitions were
2232 scanned for macro replacements. I have been disabused of this notion,
2233 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2234
958541e9
PH
2235PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2236 in the smtp transport. When a block could not be written in a single
2237 write() function, the timeout was being re-applied to each part-write.
2238 This seems wrong - if the receiver was accepting one byte at a time it
2239 would take for ever. The timeout is now adjusted when this happens. It
2240 doesn't have to be particularly precise.
2241
c206415f
TK
2242TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2243 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2244
2a4be8f9
PH
2245PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2246 without a domain if the check to <postmaster@domain> fails.
2247
1cba11c5
SC
2248SC/01 Eximstats: added -xls and the ability to specify output files
2249 (patch written by Frank Heydlauf).
2250
2251SC/02 Eximstats: use FileHandles for outputing results.
2252
2253SC/03 Eximstats: allow any combination of xls, txt, and html output.
2254
2255SC/04 Eximstats: fixed display of large numbers with -nvr option
2256
2257SC/05 Eximstats: fixed merging of reports with empty tables.
2258
2259SC/06 Eximstats: added the -include_original_destination flag
2260
2261SC/07 Eximstats: removed tabs and trailing whitespace.
2262
1005d00e
TK
2263TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2264
2265TK/06 MBOX spool code: Add real "From " MBOX separator line
2266 so the .eml file is really in mbox format (even though
2267 most programs do not really care). Patch from Alex Miller.
2268
2269TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2270 The latter is generated from $received_to and is only set if the
2271 message has one envelope recipient. SA can use these headers,
2272 obviously out-of-the-box. Patch from Alex Miller.
2273
9b4768fa
PH
2274PH/08 The ${def test on a variable was returning false if the variable's
2275 value was "0", contrary to what the specification has always said!
2276 The result should be true unless the variable is empty.
2277
2278PH/09 The syntax error of a character other than { following "${if
2279 def:variable_name" (after optional whitespace) was not being diagnosed.
2280 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2281 accidental colon was present, for example, could give incorrect results.
2282
0d7eb84a
PH
2283PH/10 Tidied the code in a number of places where the st_size field of a stat()
2284 result is used (not including appendfile, where other changes are about
2285 to be made).
2286
2287PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2288 This involved changing a lot of size variables from int to off_t. It
2289 should work with maildirs and everything.
2290
40727bee
TK
2291TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2292 spamd dying while we are connected to it.
2293
554d2369
TF
2294TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2295 <jgh@wizmail.org>
2296
1f922db1
PH
2297PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2298 function for BDB 4.3.
2299
ef213c3b
PH
2300PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2301
8ac170f3
PH
2302PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2303 the sources for PCRE have been re-arranged and more files are now
2304 involved.
2305
b1c749bb
PH
2306PH/15 The code I had for printing potentially long long variables in PH/11
2307 above was not the best (it lost precision). The length of off_t variables
2308 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2309 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2310 to be "long long int" or "long int". This is needed for the internal
2311 formatting function string_vformat().
b1c749bb 2312
4aac9b49
PH
2313PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2314 the configuration file to be ":syslog", then the script "guesses" where
2315 the logs files are, rather than using the compiled in default. In our
2316 case the guess is not the same as the compiled default, so the script
2317 suddenly stopped working when I started to use syslog. The patch checks
2318 to see if log_file_path is "". If so, it attempts to read it from exim
2319 with no configuration file to get the compiled in version, before it
2320 falls back to the previous guessing code."
2321
294520c8
TK
2322TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2323 implementing BATV in an Exim configuration. See NewStuff for the gory
2324 details.
2325
5bd022fe
PH
2326PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2327 Makefile that are specific to HP-UX.
2328
90e9ce59
PH
2329PH/18 If the "use_postmaster" option was set for a recipient callout together
2330 with the "random" option, the postmaster address was used as the MAIL
2331 FROM address for the random test, but not for the subsequent recipient
2332 test. It is now used for both.
2333
5ea81592
PH
2334PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2335 patch removes a few documentation additions to RFC 3028, because the
2336 latest draft now contains them. It adds the new en;ascii-case comparator
2337 and a new error check for 8bit text in MIME parts. Comparator and
2338 require names are now matched exactly. I enabled the subaddress
2339 extension, but it is not well tested yet (read: it works for me)."
2340
c6c2dc1d
PH
2341PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2342 rework some of the code of TK/09 above to avoid the hardwired use of
2343 "%lld" and "long long". Replaced the call to snprintf() with a call to
2344 string_vformat().
2345
fffffe4c
PH
2346PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2347 records point to non-existent hosts", "retry timeout exceeded", and
2348 "retry time not reached for any host after a long failure period".
ca02eafb 2349
9a26b6b2
PH
2350PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2351 experimental DomainKeys support:
2352
2353 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2354 (2) On an error such as an illegally used "control", the wrong name for
2355 the control was given.
2356
2357 These problems did NOT occur unless DomainKeys support was compiled.
2358
4aee0225
PH
2359PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2360
32d668a5
PH
2361PH/24 Added ${if match_ip condition.
2362
8187c3f3
PH
2363PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2364 databases so that it will be absolutely obvious if a crash occurs in the
2365 DB library. This is a regular occurrence (often caused by mis-matched
2366 db.h files).
2367
ff790e47 2368PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2369 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2370 picked up on a user's system that detects such things. There doesn't seem
2371 to be a gcc warning option for this - only an attribute that has to be
2372 put on the function's prototype. It seems that in Fedora Core 4 they have
2373 set this on a number of new functions. No doubt there will be more in due
2374 course.
ff790e47 2375
5417f6d1
PH
2376PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2377 specify a transport. However, if an address that was verified by such a
2378 router was the subject of a callout, Exim crashed because it tried to
2379 read the rcpt_include_affixes from the non-existent transport. Now it
2380 just assumes that the setting of that option is false. This bug was
2381 introduced by 4.51/PH/31.
2382
59cf8544
PH
2383PH/28 Changed -d+all to exclude +memory, because that information is very
2384 rarely of interest, but it makes the output a lot bigger. People tend to
2385 do -d+all out of habit.
2386
e7ad8a65
PH
2387PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2388 code in os-type was giving problems when libc.so lives in lib64, like on
2389 x86_64 Fedora Core.
2390
ade42478
PH
2391PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2392 aren't the modern standard, and it seems that some systems' include files
2393 don't always have them. Exim was already checking for some of the newer
2394 ones like T_AAAA, and defining it itself. I've added checks for all the
2395 record types that Exim uses.
2396
182ad5cf
PH
2397PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2398 not automatically generating a new one, as it is supposed to. This
2399 prevented TLS from working. If the file did exist, but contained invalid
2400 data, a new version was generated, as expected. It was only the case of a
2401 non-existent file that was broken.
2402
b0d9fc80
TK
2403TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2404 with a change in libdomainkeys > 0.64.
2405
2406TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2407 from DNS. If the selector record carries the flag, it now has
2408 precedence over the domain-wide flag.
2409
2410TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2411
47c7a64a
PH
2412PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2413 the use of a port name that isn't defined in /etc/services) occurred, the
2414 message was deferred as in a normal delivery, and thus remained on the
2415 spool, instead of being failed because of the mua_wrapper setting. This
2416 is now fixed, and I tidied up some of the mua_wrapper messages at the
2417 same time.
2418
a388bce4
SC
2419SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2420 the messages in a hash of arrays rather than using individual hashes.
2421 This is a bit cleaner and results in dramatic memory savings, albeit
2422 at a slight CPU cost.
2423
2424SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2425 as requested by Marc Sherman.
2426
2427SC/10 Eximstats: added histograms for user specified patterns as requested
2428 by Marc Sherman.
2429
0793e4ed
SC
2430SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2431
c58b88df
PH
2432PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2433 fopen() in the content-scanning modules that did not already have it.
2434
e7ad8a65 2435
7982096b
PH
2436Exim version 4.51
2437-----------------
2438
1a46a8c5
PH
2439TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2440 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2441
2f079f46 2442TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2443
2444TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2445
2446PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2447 to test Sieve filters that use "vacation".
2448
2449PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2450 that changes the way the GnuTLS parameters are stored in the cache file.
2451 The new format can be generated externally. For backward compatibility,
2452 if the data in the cache doesn't make sense, Exim assumes it has read an
2453 old-format file, and it generates new data and writes a new file. This
2454 means that you can't go back to an older release without removing the
2455 file.
2456
2457PH/03 A redirect router that has both "unseen" and "one_time" set does not
2458 work if there are any delivery delays because "one_time" forces the
2459 parent to be marked "delivered", so its unseen clone is never tried
2460 again. For this reason, Exim now forbids the simultaneous setting of
2461 these two options.
2462
2463PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2464 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2465 entry if you want to know the details. The fix, however, neglected to
2466 consider the case when local delivery batching is involved. The test for
2467 "previously delivered" was not happening when checking to see if an
2468 address could be batched with a previous (undelivered) one; under
2469 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2470 address.
1a46a8c5
PH
2471
2472PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2473 in its include files, and this causes problems building Exim.
2474
2475PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2476 header_syntax) but Exim was just ignoring anything given after a slash.
2477 In particular, this caused confusion with an attempt to use "verify =
2478 reverse_host_lookup/defer_ok". An error is now given when options are
2479 supplied for verify items that do not have them. (Maybe reverse_host_
2480 lookup should have a defer_ok option, but that's a different point.)
2481
2482PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2483 defined by RFC 821) to 2048, because there were problems with some AUTH
2484 commands, and RFC 1869 says the size should be increased for extended
2485 SMTP commands that take arguments.
2486
2487PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2488 Finch).
2489
2490PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2491 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2492
49c2d5ea
PH
2493PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2494 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2495 whatever). Otherwise the password may appear in the log. Following change
2496 PH/42 below, there is no longer a chance of it appearing in a bounce
2497 message.
49c2d5ea 2498
bf759a8b
PH
2499PH/11 Installed exipick version 20050225.0 from John Jetmore.
2500
83364d30
PH
2501PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2502 of its addresses was ever tried. (Bugzilla bug #2.)
2503
7999bbd7
PH
2504PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2505 the result incorrectly in the debug output. (It correctly added a newline
2506 to what was transported.)
2507
7dbf77c9
PH
2508TF/01 Added $received_time.
2509
74e0617f
PH
2510PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2511 commented out examples of how to interface to a virus scanner and to
2512 SpamAssassin. Also added commented examples of av_scanner and
2513 spamd_address settings.
2514
2f079f46
PH
2515PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2516 and controls are allowed in which ACLs. There were a couple of minor
2517 errors. Some of the entries in the conditions table (which is a table of
2518 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2519 negation of where the condition IS allowed.
2520
8c841523
PH
2521PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2522
7766a4f0
PH
2523PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2524 header file does not have a version number, so I've had to invent a new
2525 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2526 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2527 radiusclient), but it was contributed by a Radius user.
2528
8b417f2c
PH
2529PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2530 files or directories, for OpenSSL.
2531
901f42cb
PH
2532PH/19 When an Exim process that is running as root has to create an Exim log
2533 file, it does so in a subprocess that runs as exim:exim so as to get the
2534 ownership right at creation (otherwise, other Exim processes might see
2535 the file with the wrong ownership). There was no test for failure of this
2536 fork() call, which would lead to the process getting stuck as it waited
2537 for a non-existent subprocess. Forks do occasionally fail when resources
2538 run out. I reviewed all the other calls to fork(); they all seem to check
2539 for failure.
2540
f9b9210e
PH
2541PH/20 When checking for unexpected SMTP input at connect time (before writing
2542 the banner), Exim was not dealing correctly with a non-positive return
2543 from the read() function. If the client had disconnected by this time,
2544 the result was a log entry for a synchronization error with an empty
2545 string after "input=" when read() returned zero. If read() returned -1
2546 (an event I could not check), uninitialized data bytes were printed.
2547 There were reports of junk text (parts of files, etc) appearing after
2548 "input=".
2549
54cdb463
PH
2550PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2551
cf00dad6
PH
2552PH/22 Added support for macro redefinition, and (re)definition in between
2553 driver and ACL definitions.
2554
acb1b346
PH
2555PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2556 forgetting to use the resulting value; it was using the unexpanded value.
2557
c5ddb310
PH
2558PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2559 hadn't been configured. The fix is from Juergen Kreileder, who
2560 understands it better than I do:
2561
2562 "Here's what I see happening with three configured cyrus_sasl
2563 authenticators configured (plain, login, cram-md5):
2564
2565 On startup auth_cyrus_sasl_init() gets called for each of these.
2566 This means three calls to sasl_listmech() without a specified mech_list.
2567 => SASL tests which mechs of all available mechs actually work
2568 => three warnings about OTP not working
2569 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2570
2571 With the patch, sasl_listmech() also gets called three times. But now
2572 SASL's mech_list option is set to the server_mech specified in the the
2573 authenticator. Or in other words, the answer from sasl_listmech()
2574 gets limited to just the mech you're testing for (which is different
2575 for each call.)
2576 => the return list contains just 'plain' or 'login', 'cram-md5' or
2577 nothing depending on the value of ob->server_mech.
2578
2579 I've just tested the patch: Authentication still works fine,
2580 unavailable mechs specified in the exim configuration are still
2581 caught, and the auth.log warnings about OTP are gone."
2582
31619da6
PH
2583PH/25 When debugging is enabled, the contents of the command line are added
2584 to the debugging output, even when log_selector=+arguments is not
2585 specified.
2586
bebaf0fc
PH
2587PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2588 answer is "GNU", and only if the return is "GNU/something" is the answer
2589 "Linux".
2590
475fe28a
PH
2591PH/27 $acl_verify_message is now set immediately after the failure of a
2592 verification in an ACL, and so is available in subsequent modifiers. In
2593 particular, the message can be preserved by coding like this:
2594
2595 warn !verify = sender
2596 set acl_m0 = $acl_verify_message
2597
2598 Previously, $acl_verify_message was set only while expanding "message"
2599 and "log_message" when a very denied access.
2600
7e8bec7a
PH
2601PH/28 Modified OS/os.c-Linux with
2602
2603 -#ifndef OS_LOAD_AVERAGE
2604 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2605
2606 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2607 nomenclature these days.)
2608
e4a89c47
PH
2609PH/29 Installed patch from the Sieve maintainer that adds the options
2610 sieve_useraddress and sieve_subaddress to the redirect router.
2611
5ca2a9a1
PH
2612PH/30 In these circumstances:
2613 . Two addresses routed to the same list of hosts;
2614 . First host does not offer TLS;
2615 . First host accepts first address;
2616 . First host gives temporary error to second address;
2617 . Second host offers TLS and a TLS session is established;
2618 . Second host accepts second address.
2619 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2620 and peerdn, if requested) that were in fact used only for the second
2621 address.
7e8bec7a 2622
c688b954
PH
2623PH/31 When doing a callout as part of verifying an address, Exim was not paying
2624 attention to any local part prefix or suffix that was matched by the
2625 router that accepted the address. It now behaves in the same way as it
2626 does for delivery: the affixes are removed from the local part unless
2627 rcpt_include_affixes is set on the transport.
2628
fed77020
PH
2629PH/32 Add the sender address, as F=<...>, to the log line when logging a
2630 timeout during the DATA phase of an incoming message.
2631
7fe1560f
PH
2632PH/33 Sieve envelope tests were broken for match types other than :is. I have
2633 applied a patch sanctioned by the Sieve maintainer.
c688b954 2634
ebb6e6d5
PH
2635PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2636 the uid or gid is negative. A case of a negative gid caused this to be
2637 noticed. The fix allows for either to be negative.
2638
9c4e8f60
PH
2639PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2640 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2641 overlooked.
2642
2643PH/36 The change PH/12 above was broken. Fixed it.
2644
d7174846
PH
2645PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2646 the grounds that routing the same address twice would always produce the
2647 same answer. This might have been true once, but it is certainly no
2648 longer true now. Routing a child address may depend on the previous
2649 routing that produced that child. Some complicated redirection strategies
2650 went wrong when messages had multiple recipients, and made Exim's
2651 behaviour dependent on the order in which the addresses were given.
2652
2653 I have moved the duplicate checking until after the routing is complete.
2654 Exim scans the addresses that are assigned to local and remote
2655 transports, and removes any duplicates. This means that more work will be
2656 done, as duplicates will always all be routed, but duplicates are
2657 presumably rare, so I don't expect this is of any significance.
2658
2659 For deliveries to pipes, files, and autoreplies, the duplicate checking
2660 still happens during the routing process, since they are not going to be
2661 routed further.
2662
cfe75fc3
PH
2663PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2664 It corrects a timeout issue with spamd. This is Ian's comment: "The
2665 background is that sometimes spamd either never reads data from a
2666 connection it has accepted, or it never writes response data. The exiscan
2667 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2668 blindly assumes that writes won't block so it may never time out."
2669
be22d70e
PH
2670PH/39 Allow G after quota size as well as K and M.
2671
0612b098
PH
2672PH/40 The value set for $authenticated_id in an authenticator may not contain
2673 binary zeroes or newlines because the value is written to log lines and
2674 to spool files. There was no check on this. Now the value is run through
2675 the string_printing() function so that such characters are converted to
2676 printable escape sequences.
2677
2e0c1448
PH
2678PH/41 $message_linecount is a new variable that contains the total number of
2679 lines in the message. Compare $body_linecount, which is the count for the
2680 body only.
2681
447d236c
PH
2682PH/42 Exim no longer gives details of delivery errors for specific addresses in
2683 bounce and delay warning messages, except in certain special cases, which
2684 are as follows:
2685
2686 (a) An SMTP error message from a remote host;
2687 (b) A message specified in a :fail: redirection;
2688 (c) A message specified in a "fail" command in a system filter;
2689 (d) A message specified in a FAIL return from the queryprogram router;
2690 (e) A message specified by the cannot_route_message router option.
2691
2692 In these cases only, Exim does include the error details in bounce and
2693 warning messages. There are also a few cases where bland messages such
2694 as "unrouteable address" or "local delivery error" are given.
2695
d20976dc
PH
2696PH/43 $value is now also set for the "else" part of a ${run expansion.
2697
f656d135
PH
2698PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2699 being worked on, but at least Exim now implements the latest version to
2700 play with."
2701
2e2a30b4
PH
2702PH/45 In a pipe transport, although a timeout while waiting for the pipe
2703 process to complete was treated as a delivery failure, a timeout while
2704 writing the message to the pipe was logged, but erroneously treated as a
2705 successful delivery. Such timeouts include transport filter timeouts. For
2706 consistency with the overall process timeout, these timeouts are now
2707 treated as errors, giving rise to delivery failures by default. However,
2708 there is now a new Boolean option for the pipe transport called
2709 timeout_defer, which, if set TRUE, converts the failures into defers for
2710 both kinds of timeout. A transport filter timeout is now identified in
2711 the log output.
2712
9176e9f0
PH
2713PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2714 systems where "make" and "gmake" are different, calling "gmake" at top
2715 level broke things. I've arranged for the value of $(MAKE) to be passed
2716 from the Makefile to this script so that it can call the same version of
2717 "make".
2718
7982096b 2719
bbe902f0
PH
2720A note about Exim versions 4.44 and 4.50
2721----------------------------------------
2722
2723Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2724changes of various kinds. As a consequence, a big documentation update was
2725needed. This delayed the release for rather longer than seemed good, especially
2726in the light of a couple of (minor) security issues. Therefore, the changes
2727that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2728release. So 4.44 and 4.50 are in effect two different branches that both start
2729from 4.43.
2730
2731I have left the 4.50 change log unchanged; it contains all the changes since
27324.43. The change log for 4.44 is below; many of its items are identical to
2733those for 4.50. This seems to be the most sensible way to preserve the
2734historical information.
2735
2736
f7b63901 2737Exim version 4.50
495ae4b0
PH
2738-----------------
2739
5fe762f6
PH
2740 1. Minor wording change to the doc/README.SIEVE file.
2741
139059f6 2742 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2743 computation of the current number of files was incorrect.
495ae4b0 2744
7086e875
PH
2745 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2746 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2747 place.
2748
35af9f61
PH
2749 4. Give more explanation in the error message when the command for a transport
2750 filter fails to execute.
2751
b668c215
PH
2752 5. There are several places where Exim runs a non-Exim command in a
2753 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2754 was being done only for the command run by the queryprogram router. It is
2755 now done for all such subprocesses. The other cases are: ${run, transport
2756 filters, and the commands run by the lmtp and pipe transports.
2757
a494b1e1
PH
2758 6. Added CONFIGURE_GROUP build-time option.
2759
2760 7. Some older OS have a limit of 256 on the maximum number of file
2761 descriptors. Exim was using setrlimit() to set 1000 as a large value
2762 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2763 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2764
c5fcb476
PH
2765 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2766 was an oversight, and furthermore, ever since the addition of extra
2767 controls (e.g. 4.43/32), the checks on when to allow different forms of
2768 "control" were broken. There should now be diagnostics for all cases when a
2769 control that does not make sense is encountered.
2770
69358f02
PH
2771 9. Added the /retain_sender option to "control=submission".
2772
5be20824
PH
277310. $recipients is now available in the predata ACL (oversight).
2774
eb2c0248
PH
277511. Tidy the search cache before the fork to do a delivery from a message
2776 received from the command line. Otherwise the child will trigger a lookup
2777 failure and thereby defer the delivery if it tries to use (for example) a
2778 cached ldap connection that the parent has called unbind on.
2779
2a3eea10
PH
278012. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2781 of $address_data from the recipient verification was clobbered by the
2782 sender verification.
2783
278413. The value of address_data from a sender verification is now available in
2785 $sender_address_data in subsequent conditions in the ACL statement.
2786
23c7ff99
PH
278714. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2788
4deaf07d
PH
278915. Added a new option "connect=<time>" to callout options, to set a different
2790 connection timeout.
2791
926e1192
PH
279216. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2793 was its contents. (It was OK if the option was not defined at all.)
2794
650edc6f
PH
279517. A "Completed" log line is now written for messages that are removed from
2796 the spool by the -Mrm option.
2797
2c7db3f5
PH
279818. New variables $sender_verify_failure and $recipient_verify_failure contain
2799 information about exactly what failed.
2800
3d235903
PH
280119. Added -dd to debug only the daemon process.
2802
7c7ad977
PH
280320. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2804 handles timeouts, both on the server side and network timeouts. Renamed the
2805 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2806
981756db
PH
280721. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2808 It is now set to "smtps".
2809
d4eb88df
PH
281022. $host_address is now set to the target address during the checking of
2811 ignore_target_hosts.
2812
281323. When checking ignore_target_hosts for an ipliteral router, no host name was
2814 being passed; this would have caused $sender_host_name to have been used if
2815 matching the list had actually called for a host name (not very likely,
2816 since this list is usually IP addresses). A host name is now passed as
2817 "[x.x.x.x]".
2818
7d468ab8
PH
281924. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2820 code that specifies a non-restarting handler (typically sigaction() in
2821 modern systems) in an attempt to fix a rare and obscure crash bug.
2822
282325. Narrowed the window for a race in the daemon that could cause it to ignore
2824 SIGCHLD signals. This is not a major problem, because they are used only to
2825 wake it up if nothing else does.
2826
62c0818f
PH
282726. A malformed maildirsize file could cause Exim to calculate negative values
2828 for the mailbox size or file count. Odd effects could occur as a result.
2829 The maildirsize information is now recalculated if the size or filecount
2830 end up negative.
2831
26034054
PH
283227. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2833 support for a long time. Removed HAVE_SYS_VFS_H.
2834
af66f652
PH
283528. Installed the latest version of exipick from John Jetmore.
2836
90af77f4
PH
283729. In an address list, if the pattern was not a regular expression, an empty
2838 subject address (from a bounce message) matched only if the pattern was an
2839 empty string. Non-empty patterns were not even tested. This was the wrong
2840 because it is perfectly reasonable to use an empty address as part of a
2841 database query. An empty address is now tested by patterns that are
2842 lookups. However, all the other forms of pattern expect the subject to
2843 contain a local part and a domain, and therefore, for them, an empty
2844 address still always fails if the pattern is not itself empty.
2845
d8ef3577
PH
284630. Exim went into a mad DNS loop when attempting to do a callout where the
2847 host was specified on an smtp transport, and looking it up yielded more
2848 than one IP address.
2849
5cb8cbc6
PH
285031. Re-factored the code for checking spool and log partition space into a
2851 function that finds that data and another that does the check. The former
2852 is then used to implement four new variables: $spool_space, $log_space,
2853 $spool_inodes, and $log_inodes.
2854
14702f5b
PH
285532. The RFC2047 encoding function was originally intended for short strings
2856 such as real names; it was not keeping to the 75-character limit for
2857 encoded words that the RFC imposes. It now respects the limit, and
2858 generates multiple encoded words if necessary. To be on the safe side, I
2859 have increased the buffer size for the ${rfc2047: expansion operator from
2860 1024 to 2048 bytes.
2861
063b1e99
PH
286233. It is now permitted to omit both strings after an "if" condition; if the
2863 condition is true, the result is "true". As before, when the second string
2864 is omitted, a false condition yields an empty string. This makes it less
2865 cumbersome to write custom ACL and router conditions.
2866
652e1b65
PH
286734. Failure to deliver a bounce message always caused it to be frozen, even if
2868 there was an errors_to setting on the router. The errors_to setting is now
2869 respected.
2870
6f0c9a4f
PH
287135. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2872 canonical form (fully expanded) before being placed in
2873 $sender_host_address.
2874
33397d19
PH
287536. The table in the code that translates DNS record types into text (T_A to
2876 "A" for instance) was missing entries for NS and CNAME. It is just possible
2877 that this could have caused confusion if both these types were looked up
2878 for the same domain, because the text type is used as part of Exim's
2879 per-process caching. But the chance of anyone hitting this buglet seems
2880 very small.
2881
7bb56e1f
PH
288237. The dnsdb lookup has been extended in a number of ways.
2883
2884 (1) There is a new type, "zns", which walks up the domain tree until it
2885 finds some nameserver records. It should be used with care.
2886
ea3bc19b
PH
2887 (2) There is a new type, "mxh", which is like "mx" except that it returns
2888 just the host names, not the priorities.
2889
2890 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2891 looked up. The behaviour when one of the lookups defers can be
2892 controlled by a keyword.
7bb56e1f 2893
ea3bc19b 2894 (4) It is now possible to specify the separator character for use when
7bb56e1f 2895 multiple records are returned.
33397d19 2896
0bcb2a0e
PH
289738. The dnslists ACL condition has been extended: it is now possible to supply
2898 a list of IP addresses and/or domains to be looked up in a particular DNS
2899 domain.
2900
2ac0e484
PH
290139. Added log_selector=+queue_time_overall.
2902
4e1fde53
PH
290340. When running the queue in the test harness, wait just a tad after forking a
2904 delivery process, to get repeatability of debugging output.
2905
de365ded
PH
290641. Include certificate and key file names in error message when GnuTLS fails
2907 to set them up, because the GnuTLS error message doesn't include the name
2908 of the failing file when there is a problem reading it.
2909
f05da2e8
PH
291042. Allow both -bf and -bF in the same test run.
2911
d6453af2
PH
291243. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2913
f7b63901
PH
291444. The "Exiscan patch" is now merged into the mainline Exim source.
2915
291645. Sometimes the final signoff response after QUIT could fail to get
2917 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2918 < 0 before doing a fflush(). This bug looks as though it goes back to the
2919 introduction of TLS in release 3.20, but "sometimes" must have been rare
2920 because the tests only now provoked it.
2921
a444213a
PH
292246. Reset the locale to "C" after calling embedded Perl, in case it was changed
2923 (this can affect the format of dates).
2924
0ec020ea
PH
292547. exim_tidydb, when checking for the continued existence of a message for
2926 which it has found a message-specific retry record, was not finding
2927 messages that were in split spool directories. Consequently, it was
2928 deleting retry records that should have stayed in existence.
2929
b1206957
PH
293048. Steve fixed some bugs in eximstats.
2931
293249. The SPA authentication driver was not abandoning authentication and moving
2933 on to the next authenticator when an expansion was forced to fail,
2934 contradicting the general specification for all authenticators. Instead it
2935 was generating a temporary error. It now behaves as specified.
2936
26dd5a95
PH
293750. The default ordering of permitted cipher suites for GnuTLS was pessimal
2938 (the order specifies the preference for clients). The order is now AES256,
2939 AES128, 3DES, ARCFOUR128.
2940
343b2385
PH
294151. Small patch to Sieve code - explicitly set From: when generating an
2942 autoreply.
2943
1c5466b9
PH
294452. Exim crashed if a remote delivery caused a very long error message to be
2945 recorded - for instance if somebody sent an entire SpamAssassin report back
2946 as a large number of 550 error lines. This bug was coincidentally fixed by
2947 increasing the size of one of Exim's internal buffers (big_buffer) that
2948 happened as part of the Exiscan merge. However, to be on the safe side, I
2949 have made the code more robust (and fixed the comments that describe what
2950 is going on).
2951
55ee9ee3
PH
295253. Now that there can be additional text after "Completed" in log lines (if
2953 the queue_time_overall log selector is set), a one-byte patch to exigrep
2954 was needed to allow it to recognize "Completed" as not the last thing in
2955 the line.
2956
d38f8232
PH
295754. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2958 patch that reportedly fixes this has been added. I am not expert enough to
2959 create a test for it. This is what the patch creator wrote:
2960
2961 "I found a little strange behaviour of ldap code when working with
2962 Windows 2003 AD Domain, where users was placed in more than one
2963 Organization Units. When I tried to give exim partial DN, the exit code
2964 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2965 But simultaneously result of request was absolutely normal ldap result,
2966 so I produce this patch..."
2967
3295e65b
PH
2968 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2969 REFERENCE, so I have modified the code to exclude the patch when that macro
2970 is not defined.
2971
7102e136
PH
297255. Some experimental protocols are using DNS PTR records for new purposes. The
2973 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2974 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2975 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2976 CAN-2005-0021
7102e136 2977
3ca0ba97
PH
297856. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2979
c2bcbe20
PH
298057. Double the size of the debug message buffer (to 2048) so that more of very
2981 long debug lines gets shown.
2982
18ce445d
PH
298358. The exicyclog utility now does better if the number of log files to keep
2984 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2985
1f5b4c3d
PH
298659. Two changes related to the smtp_active_hostname option:
2987
2988 (1) $smtp_active_hostname is now available as a variable.
2989 (2) The default for smtp_banner uses $smtp_active_hostname instead
2990 of $primary_hostname.
2991
b975ba52
PH
299260. The host_aton() function is supposed to be passed a string that is known
2993 to be a valid IP address. However, in the case of IPv6 addresses, it was
2994 not checking this. This is a hostage to fortune. Exim now panics and dies
2995 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2996 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2997 components; fortuitously, this particular loophole had already been fixed
2998 by change 4.50/55 above.
2999
3000 If there are any other similar loopholes, the new check in host_aton()
3001 itself should stop them being exploited. The report I received stated that
3002 data on the command line could provoke the exploit when Exim was running as
3003 exim, but did not say which command line option was involved. All I could
3004 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3005 running as the user.
ea3a6f44 3006 CAN-2005-0021
85b87bc2
PH
3007
300861. There was a buffer overflow vulnerability in the SPA authentication code
3009 (which came originally from the Samba project). I have added a test to the
3010 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 3011 CAN-2005-0022
b975ba52 3012
17ffcae7
PH
301362. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3014 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3015
d95f9fdb
PH
301663. The daemon start-up calls getloadavg() while still root for those OS that
3017 need the first call to be done as root, but it missed one case: when
3018 deliver_queue_load_max is set with deliver_drop_privilege. This is
3019 necessary for the benefit of the queue runner, because there is no re-exec
3020 when deliver_drop_privilege is set.
3021
86b8287f
PH
302264. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3023 This has been fixed.
3024
60dc5e56
PH
302565. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3026 was in use, was not putting the data itself into the right store pool;
3027 consequently, it could be overwritten for a subsequent message in the same
3028 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3029 the caching.)
3030
533244af
PH
303166. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3032
a5a28604
PH
303367. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3034 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3035 the function were treating the return as a boolean value, which happened to
3036 work because 0=false and not-0=true, but is not correct code.
3037
7e634d24
PH
303868. The host_aton() function was not handling scoped IPv6 addresses (those
3039 with, for example, "%eth0" on the end) correctly.
3040
3e11c26b
PH
304169. Fixed some compiler warnings in acl.c for the bitmaps specified with
3042 negated items (that is, ~something) in unsigned ints. Some compilers
3043 apparently mutter when there is no cast.
3044
6729cf78
PH
304570. If an address verification called from an ACL failed, and did not produce a
3046 user-specific message (i.e. there was only a "system" message), nothing was
3047 put in $acl_verify_message. In this situation, it now puts the system
3048 message there.
3049
00f00ca5
PH
305071. Change 4.23/11 added synchronization checking at the start of an SMTP
3051 session; change 4.31/43 added the unwanted input to the log line - except
3052 that it did not do this in the start of session case. It now does.
3053
c9bdd01c
PH
305472. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3055 This is wrong and can cause the other end to generate a synchronization
3056 error if it is another Exim or anything else that does the synchronization
3057 check. A QUIT command is no longer sent after a timeout.
3058
d43194df
PH
305973. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3060 during host lookups.
3061
fe5b5d0b
PH
306274. The defer_ok option of callout verification was not working if it was used
3063 when verifying addresses in header lines, that is, for this case:
3064
3065 verify = header_sender/callout=defer_ok
3066
76a2d7ba
PH
306775. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3068 those file descriptors could be used for SMTP connections. If anything
3069 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3070 could be sent to the SMTP client, causing chaos. The daemon now opens
3071 stdin, stdout, and stderr to /dev/null when it puts itself into the
3072 background.
3073
307476. Arrange for output from Perl's "warn" command to be written to Exim's main
3075 log by default. The user can override this with suitable Perl magic.
3076
04f7d5b9
PH
307777. The use of log_message on a "discard" ACL verb, which is supposed to add to
3078 the log message when discard triggers, was not working for the DATA ACL or
3079 for the non-SMTP ACL.
3080
bc60667e
PH
308178. Error message wording change in sieve.c.
3082
bb6e88ff
PH
308379. If smtp_accept_max_per_host was set, the number of connections could be
3084 restricted to fewer than expected, because the daemon was trying to set up
3085 a new connection before checking whether the processes handling previous
3086 connections had finished. The check for completed processes is now done
3087 earlier. On busy systems, this bug wouldn't be noticed because something
3088 else would have woken the daemon, and it would have reaped the completed
3089 process earlier.
3090
1e70f85b
PH
309180. If a message was submitted locally by a user whose login name contained one
3092 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3093 It caused a spool format error. I have fixed the spool reading code. A
3094 related problem was that the "from" clause in the Received: line became
3095 illegal because of the space(s). It is now covered by ${quote_local_part.
3096
309781. Included the latest eximstats from Steve (adds average sizes to HTML Top
3098 tables).
3099
4e01f9d6
PH
310082. Updated OS/Makefile-AIX as per message from Mike Meredith.
3101
1ee1cef2
PH
310283. Patch from Sieve maintainer to fix unterminated string problem in
3103 "vacation" handling.
3104
6e2b4ccc
PH
310584. Some minor changes to the Linux configuration files to help with other
3106 OS variants using glibc.
3107
8e669ac1
PH
310885. One more patch for Sieve to update vacation handling to latest spec.
3109
495ae4b0 3110
bbe902f0
PH
3111----------------------------------------------------
3112See the note above about the 4.44 and 4.50 releases.
3113----------------------------------------------------
3114
3115
3116Exim version 4.44
3117-----------------
3118
3119 1. Change 4.43/35 introduced a bug that caused file counts to be
3120 incorrectly computed when quota_filecount was set in an appendfile
3121 transport
3122
3123 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3124 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3125 place.
3126
3127 3. Give more explanation in the error message when the command for a transport
3128 filter fails to execute.
3129
3130 4. There are several places where Exim runs a non-Exim command in a
3131 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3132 was being done only for the command run by the queryprogram router. It is
3133 now done for all such subprocesses. The other cases are: ${run, transport
3134 filters, and the commands run by the lmtp and pipe transports.
3135
3136 5. Some older OS have a limit of 256 on the maximum number of file
3137 descriptors. Exim was using setrlimit() to set 1000 as a large value
3138 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3139 systems. I've change it so that if it can't get 1000, it tries for 256.
3140
3141 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3142 was an oversight, and furthermore, ever since the addition of extra
3143 controls (e.g. 4.43/32), the checks on when to allow different forms of
3144 "control" were broken. There should now be diagnostics for all cases when a
3145 control that does not make sense is encountered.
3146
3147 7. $recipients is now available in the predata ACL (oversight).
3148
3149 8. Tidy the search cache before the fork to do a delivery from a message
3150 received from the command line. Otherwise the child will trigger a lookup
3151 failure and thereby defer the delivery if it tries to use (for example) a
3152 cached ldap connection that the parent has called unbind on.
3153
3154 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3155 of $address_data from the recipient verification was clobbered by the
3156 sender verification.
3157
315810. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3159 was its contents. (It was OK if the option was not defined at all.)
3160
316111. A "Completed" log line is now written for messages that are removed from
3162 the spool by the -Mrm option.
3163
316412. $host_address is now set to the target address during the checking of
3165 ignore_target_hosts.
3166
316713. When checking ignore_target_hosts for an ipliteral router, no host name was
3168 being passed; this would have caused $sender_host_name to have been used if
3169 matching the list had actually called for a host name (not very likely,
3170 since this list is usually IP addresses). A host name is now passed as
3171 "[x.x.x.x]".
3172
317314. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3174 code that specifies a non-restarting handler (typically sigaction() in
3175 modern systems) in an attempt to fix a rare and obscure crash bug.
3176
317715. Narrowed the window for a race in the daemon that could cause it to ignore
3178 SIGCHLD signals. This is not a major problem, because they are used only to
3179 wake it up if nothing else does.
3180
318116. A malformed maildirsize file could cause Exim to calculate negative values
3182 for the mailbox size or file count. Odd effects could occur as a result.
3183 The maildirsize information is now recalculated if the size or filecount
3184 end up negative.
3185
318617. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3187 support for a long time. Removed HAVE_SYS_VFS_H.
3188
ea3a6f44 318918. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3190
319119. Allow an empty sender to be matched against a lookup in an address list.
3192 Previously the only cases considered were a regular expression, or an
3193 empty pattern.
3194
319520. Exim went into a mad DNS lookup loop when doing a callout where the
3196 host was specified on the transport, if the DNS lookup yielded more than
3197 one IP address.
3198
ea3a6f44
NM
319921. The RFC2047 encoding function was originally intended for short strings
3200 such as real names; it was not keeping to the 75-character limit for
3201 encoded words that the RFC imposes. It now respects the limit, and
3202 generates multiple encoded words if necessary. To be on the safe side, I
3203 have increased the buffer size for the ${rfc2047: expansion operator from
3204 1024 to 2048 bytes.
bbe902f0 3205
ea3a6f44
NM
320622. Failure to deliver a bounce message always caused it to be frozen, even if
3207 there was an errors_to setting on the router. The errors_to setting is now
3208 respected.
bbe902f0
PH
3209
321023. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3211 canonical form (fully expanded) before being placed in
3212 $sender_host_address.
3213
321424. Updated eximstats to version 1.33
3215
ea3a6f44
NM
321625. Include certificate and key file names in error message when GnuTLS fails
3217 to set them up, because the GnuTLS error message doesn't include the name
3218 of the failing file when there is a problem reading it.
bbe902f0
PH
3219
322026. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3221 As per change 25.
bbe902f0 3222
ea3a6f44
NM
322327. Reset the locale to "C" after calling embedded Perl, in case it was changed
3224 (this can affect the format of dates).
bbe902f0 3225
ea3a6f44
NM
322628. exim_tidydb, when checking for the continued existence of a message for
3227 which it has found a message-specific retry record, was not finding
3228 messages that were in split spool directories. Consequently, it was
3229 deleting retry records that should have stayed in existence.
bbe902f0
PH
3230
323129. eximstats updated to version 1.35
3232 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3233 1.35 - bugfix such that pie charts by volume are generated correctly
3234
ea3a6f44
NM
323530. The SPA authentication driver was not abandoning authentication and moving
3236 on to the next authenticator when an expansion was forced to fail,
3237 contradicting the general specification for all authenticators. Instead it
3238 was generating a temporary error. It now behaves as specified.
bbe902f0 3239
ea3a6f44
NM
324031. The default ordering of permitted cipher suites for GnuTLS was pessimal
3241 (the order specifies the preference for clients). The order is now AES256,
3242 AES128, 3DES, ARCFOUR128.
bbe902f0 3243
ea3a6f44
NM
324431. Small patch to Sieve code - explicitly set From: when generating an
3245 autoreply.
bbe902f0 3246
ea3a6f44
NM
324732. Exim crashed if a remote delivery caused a very long error message to be
3248 recorded - for instance if somebody sent an entire SpamAssassin report back
3249 as a large number of 550 error lines. This bug was coincidentally fixed by
3250 increasing the size of one of Exim's internal buffers (big_buffer) that
3251 happened as part of the Exiscan merge. However, to be on the safe side, I
3252 have made the code more robust (and fixed the comments that describe what
3253 is going on).
bbe902f0 3254
ea3a6f44
NM
325533. Some experimental protocols are using DNS PTR records for new purposes. The
3256 keys for these records are domain names, not reversed IP addresses. The
3257 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3258 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3259 CAN-2005-0021
3260
ea3a6f44
NM
326134. The host_aton() function is supposed to be passed a string that is known
3262 to be a valid IP address. However, in the case of IPv6 addresses, it was
3263 not checking this. This is a hostage to fortune. Exim now panics and dies
3264 if the condition is not met. A case was found where this could be provoked
3265 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3266 components; fortuitously, this particular loophole had already been fixed
3267 by change 4.50/55 or 4.44/33 above.
3268
3269 If there are any other similar loopholes, the new check in host_aton()
3270 itself should stop them being exploited. The report I received stated that
3271 data on the command line could provoke the exploit when Exim was running as
3272 exim, but did not say which command line option was involved. All I could
3273 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3274 running as the user.
bbe902f0
PH
3275 CAN-2005-0021
3276
ea3a6f44
NM
327735. There was a buffer overflow vulnerability in the SPA authentication code
3278 (which came originally from the Samba project). I have added a test to the
3279 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3280 CAN-2005-0022
3281
ea3a6f44
NM
328236. The daemon start-up calls getloadavg() while still root for those OS that
3283 need the first call to be done as root, but it missed one case: when
3284 deliver_queue_load_max is set with deliver_drop_privilege. This is
3285 necessary for the benefit of the queue runner, because there is no re-exec
3286 when deliver_drop_privilege is set.
bbe902f0 3287
ea3a6f44
NM
328837. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3289 was in use, was not putting the data itself into the right store pool;
3290 consequently, it could be overwritten for a subsequent message in the same
3291 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3292 the caching.)
bbe902f0 3293
ea3a6f44
NM
329438. Sometimes the final signoff response after QUIT could fail to get
3295 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3296 < 0 before doing a fflush(). This bug looks as though it goes back to the
3297 introduction of TLS in release 3.20, but "sometimes" must have been rare
3298 because the tests only now provoked it.
bbe902f0
PH
3299
3300
495ae4b0
PH
3301Exim version 4.43
3302-----------------
3303
3304 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3305 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3306 Now it returns an integer. A number of calls were still expecting a T/F
3307 return. Fortuitously, in all cases, the tests worked in OK situations,
3308 which is the norm. However, things would have gone wrong on any write
3309 failures on the smtp file descriptor. This function is used when sending
3310 messages over SMTP and also when doing verify callouts.
3311
3312 2. When Exim is called to do synchronous delivery of a locally submitted
3313 message (the -odf or -odi options), it no longer closes stderr before doing
3314 the delivery.
3315
3316 3. Implemented the mua_wrapper option.
3317
3318 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3319
3320 5. Implemented the functions header_remove(), header_testname(),
3321 header_add_at_position(), and receive_remove_recipient(), and exported them
3322 to local_scan().
3323
3324 6. If an ACL "warn" statement specified the addition of headers, Exim already
3325 inserted X-ACL-Warn: at the start if there was no header name. However, it
3326 was not making this test for the second and subsequent header lines if
3327 there were newlines in the string. This meant that an invalid header could
3328 be inserted if Exim was badly configured.
3329
3330 7. Allow an ACL "warn" statement to add header lines at the start or after all
3331 the Received: headers, as well as at the end.
3332
3333 8. Added the rcpt_4xx retry error code.
3334
3335 9. Added postmaster_mailfrom=xxx to callout verification option.
3336
333710. Added mailfrom=xxxx to the callout verification option, for verify=
3338 header_sender only.
3339
334011. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3341 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3342
334312. Inserted some casts to stop certain compilers warning when using pointer
3344 differences as field lengths or precisions in printf-type calls (mostly
3345 affecting debugging statements).
3346
334713. Added optional readline() support for -be (dynamically loaded).
3348
334914. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3350 same clock tick as a message's arrival, so that its received time was the
3351 same as the "first fail" time on the retry record, and that message
3352 remained on the queue past the ultimate address timeout, every queue runner
3353 would try a delivery (because it was past the ultimate address timeout) but
3354 after another failure, the ultimate address timeout, which should have then
3355 bounced the address, did not kick in. This was a "< instead of <=" error;
3356 in most cases the first failure would have been in the next clock tick
3357 after the received time, and all would be well.
3358
335915. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3360 being recognized when the domain list was tested by the match_domain
3361 condition in an expansion string.
3362
336316. Added the ${str2b64: operator.
3364
336517. Exim was always calling setrlimit() to set a large limit for the number of
3366 processes, without checking whether the existing limit was already
3367 adequate. (It did check for the limit on file descriptors.) Furthermore,
3368 errors from getrlimit() and setrlimit() were being ignored. Now they are
3369 logged to the main and panic logs, but Exim does carry on, to try to do its
3370 job under whatever limits there are.
3371
337218. Imported PCRE 5.0.
3373
337419. Trivial typo in log message " temporarily refused connection" (the leading
3375 space).
3376
337720. If the log selector return_path_on_delivery was set and an address was
3378 redirected to /dev/null, the delivery process crashed because it assumed
3379 that a return path would always be set for a "successful" delivery. In this
3380 case, the whole delivery is bypassed as an optimization, and therefore no
3381 return path is set.
3382
338321. Internal re-arrangement: the function for sending a challenge and reading
3384 a response while authentication was assuming a zero-terminated challenge
3385 string. It's now changed to take a pointer and a length, to allow for
3386 binary data in such strings.
3387
338822. Added the cyrus_sasl authenticator (code supplied by MBM).
3389
339023. Exim was not respecting finduser_retries when seeking the login of the
3391 uid under which it was called; it was always trying 10 times. (The default
3392 setting of finduser_retries is zero.) Also, it was sleeping after the final
3393 failure, which is pointless.
3394
339524. Implemented tls_on_connect_ports.
3396
339725. Implemented acl_smtp_predata.
3398
339926. If the domain in control=submission is set empty, Exim assumes that the
3400 authenticated id is a complete email address when it generates From: or
3401 Sender: header lines.
3402
340327. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3404 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3405 chown and chgrp in /bin and hostname in /usr/bin.
3406
340728. Exim was keeping the "process log" file open after each use, just as it
3408 does for the main log. This opens the possibility of it remaining open for
3409 long periods when the USR1 signal hits a daemon. Occasional processlog
3410 errors were reported, that could have been caused by this. Anyway, it seems
3411 much more sensible not to leave this file open at all, so that is what now
3412 happens.
3413
341429. The long-running daemon process does not normally write to the log once it
3415 has entered its main loop, and it closes the log before doing so. This is
3416 so that log files can straightforwardly be renamed and moved. However,
3417 there are a couple of unusual error situations where the daemon does write
3418 log entries, and I had neglected to close the log afterwards.
3419
342030. The text of an SMTP error response that was received during a remote
3421 delivery was being truncated at 512 bytes. This is too short for some of
3422 the long messages that one sometimes sees. I've increased the limit to
3423