Minor robustness fixes for debugging.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
5dc43717 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.632 2010/06/12 15:21:25 jetmore Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
aa097c4c
NM
6Exim version 4.75
7-----------------
8
9NM/01 Workround for PCRE version dependancy in version reporting
10 Bugzilla 1073
11
7f3d9eff
TF
12TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
13 This fixes portability to compilers other than gcc, notably
14 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
15
159f52d2
TF
16TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
17 makefiles for portability to HP-UX and POSIX correctness.
18
0cc9542a
PP
19PP/01 Permit LOOKUP_foo enabling on the make command-line.
20 Also via indented variable definition in the Makefile.
21 (Debugging by Oliver Heesakkers).
22
f7274286
PP
23PP/02 Restore caching of spamd results with expanded spamd_address.
24 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
25
7b797365
PP
26PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
27 Improves build reliability. Fix from: Frank Elsner
28
caacae52
NM
29NM/02 Fix wide character breakage in the rfc2047 coding
30 Fixes bug 1064. Patch from Andrey N. Oktyabrski
31
09dcaba9
NM
32NM/03 Allow underscore in dnslist lookups
33 Fixes bug 1026. Patch from Graeme Fowler
34
bc19a55b
PP
35PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
36 Code patches from Adam Ciarcinski of NetBSD.
caacae52 37
bd4c9759
NM
38NM/04 Fixed exiqgrep to cope with mailq missing size issue
39 Fixes bug 943.
40
b72aab72
PP
41PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
42 is logged, to avoid truncation. Patch from John Horne.
43
2fe76745
PP
44PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
45 Patch from Jakob Hirsch.
46
76aa570c
PP
47PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
48 SQL string expansion failure details.
49 Patch from Andrey Oktyabrski.
50
f1e5fef5
PP
51PP/08 Bugzilla 486: implement %M datestamping in log filenames.
52 Patch from Simon Arlott.
53
4d805ee9
PP
54PP/09 New lookups functionality failed to compile on old gcc which rejects
55 extern declarations in function scope.
56 Patch from Oliver Fleischmann
57
cd59ab18
PP
58PP/10 Use sig_atomic_t for flags set from signal handlers.
59 Check getgroups() return and improve debugging.
60 Fixed developed for diagnosis in bug 927 (which turned out to be
61 a kernel bug).
62
aa097c4c 63
8c07b69f
TF
64Exim version 4.74
65-----------------
66
67TF/01 Failure to get a lock on a hints database can have serious
68 consequences so log it to the panic log.
69
c0ea85ab
TF
70TF/02 Log LMTP confirmation messages in the same way as SMTP,
71 controlled using the smtp_confirmation log selector.
72
0761d44e
TF
73TF/03 Include the error message when we fail to unlink a spool file.
74
0a349494
PP
75DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
76 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
77 for maintaining out-of-tree patches for some time.
78
79PP/01 Bugzilla 139: Documentation and portability issues.
80 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
81 Handle per-OS dynamic-module compilation flags.
82
fea24b2e
PP
83PP/02 Let /dev/null have normal permissions.
84 The 4.73 fixes were a little too stringent and complained about the
85 permissions on /dev/null. Exempt it from some checks.
86 Reported by Andreas M. Kirchwitz.
87
6545de78
PP
88PP/03 Report version information for many libraries, including
89 Exim version information for dynamically loaded libraries. Created
90 version.h, now support a version extension string for distributors
91 who patch heavily. Dynamic module ABI change.
92
1670ef10
PP
93PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
94 privilege escalation vulnerability whereby the Exim run-time user
95 can cause root to append content of the attacker's choosing to
96 arbitrary files.
97
c0886197
PP
98PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
99 (Wolfgang Breyha)
100
b7487bce
PP
101PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
102 If dropping privileges for untrusted macros, we disabled normal logging
103 on the basis that it would fail; for the Exim run-time user, this is not
104 the case, and it resulted in successful deliveries going unlogged.
105 Fixed. Reported by Andreas Metzler.
106
8c07b69f 107
97fd1e48 108Exim version 4.73
ed7f7860 109-----------------
97fd1e48
PP
110
111PP/01 Date: & Message-Id: revert to normally being appended to a message,
112 only prepend for the Resent-* case. Fixes regression introduced in
113 Exim 4.70 by NM/22 for Bugzilla 607.
114
6901c596
PP
115PP/02 Include check_rfc2047_length in configure.default because we're seeing
116 increasing numbers of administrators be bitten by this.
117
a8c8d6b5
JJ
118JJ/01 Added DISABLE_DKIM and comment to src/EDITME
119
77bb000f
PP
120PP/03 Bugzilla 994: added openssl_options main configuration option.
121
a29e5231
PP
122PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
123
ec5a0394 124PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 125
55c75993
PP
126PP/06 Adjust NTLM authentication to handle SASL Initial Response.
127
453a6645 128PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
129 without a peer certificate, leading to a segfault because of an
130 assumption that peers always have certificates. Be a little more
453a6645
PP
131 paranoid. Problem reported by Martin Tscholak.
132
8544e77a
PP
133PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
134 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
135 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
136 CL also introduces -bmalware, various -d+acl logging additions and
137 more caution in buffer sizes.
8544e77a 138
83e029d5
PP
139PP/09 Implemented reverse_ip expansion operator.
140
ed7f7860
PP
141PP/10 Bugzilla 937: provide a "debug" ACL control.
142
7d9f747b
PP
143PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
144
4b2241d2
PP
145PP/12 Bugzilla 973: Implement --version.
146
10385c15
PP
147PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
148
dbc4b90d
PP
149PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
150
532be449
PP
151PP/15 Bugzilla 816: support multiple condition rules on Routers.
152
6a8de854 153PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
154 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
155 ignore trailing whitespace.
6a8de854 156
5dc43717
JJ
157JJ/02 prevent non-panic DKIM error from being sent to paniclog
158
159JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
160 "exim" to be used
55c75993 161
3346ab01
PP
162PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
163 Notification from Dr Andrew Aitchison.
164
491fab4c
PP
165PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
166 ExtendedDetectionInfo response format.
167 Notification from John Horne.
168
13eb9497
PP
169PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
170 compatible.
171
172PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
173 XSL and documented dependency on system catalogs, with examples of how
174 it normally works.
175
7f36d675
DW
176DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
177 access.
178
c1d94452
DW
179DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
180 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
181 configuration file which is writeable by the Exim user or group.
182
e2f5dc15
DW
183DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
184 of configuration files to cover files specified with the -C option if
185 they are going to be used with root privileges, not just the default
186 configuration file.
187
cd25e41d
DW
188DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
189 option (effectively making it always true).
190
261dc43e
DW
191DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
192 files to be used while preserving root privileges.
193
fa32850b
DW
194DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
195 that rogue child processes cannot use them.
196
79d4bc3d
PP
197PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
198 run-time user, instead of root.
199
2cfd3221
PP
200PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
201 Exim run-time user without dropping privileges.
202
fb08281f
DW
203DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
204 result string, instead of calling string_vformat() twice with the same
205 arguments.
3346ab01 206
74935b98
DW
207DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
208 for other users. Others should always drop root privileges if they use
209 -C on the command line, even for a whitelisted configure file.
210
90b6341f
DW
211DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
212
57730b52
ML
213NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
214
66581d1e 215
465e92cf
JJ
216Exim version 4.72
217-----------------
218
453a6645
PP
219JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
220 $data_path, and $header_path variables; fixed documentation bugs and
221 typos
465e92cf 222
453a6645
PP
223JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
224 exipick to access non-standard spools, including the "frozen" queue
225 (Finput)
edae0343 226
9bd3e22c
NM
227NM/01 Bugzilla 965: Support mysql stored procedures.
228 Patch from Alain Williams
229
bb576ff7
NM
230NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
231
5a1a5845
NM
232NM/03 Bugzilla 955: Documentation fix for max_rcpts.
233 Patch from Andreas Metzler
234
981a9fad
NM
235NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
236 Patch from Kirill Miazine
237
7fc497ee
NM
238NM/05 Bugzilla 671: Added umask to procmail example.
239
1a41defa
JJ
240JJ/03 installed exipick 20100323.0, fixing doc bug
241
a466095c 242NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 243 directory. Notification and patch from Dan Rosenberg.
a466095c 244
94a6bd0b
NM
245TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
246
247TK/02 Improve log output when DKIM signing operation fails.
248
249MH/01 Treat the transport option dkim_domain as a colon separated
250 list, not as a single string, and sign the message with each element,
251 omitting multiple occurences of the same signer.
252
c1b141a8
NM
253NM/07 Null terminate DKIM strings, Null initialise DKIM variable
254 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 255
b26eacf1 256NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
257 Patch by Simon Arlott
258
179c5980 259PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 260 MBX locking. Notification from Dan Rosenberg.
179c5980 261
9bd3e22c 262
7c6d71af
NM
263Exim version 4.71
264-----------------
265
7d9f747b 266TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 267
f013fb92
NM
268NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
269
0eb8eedd
NM
270NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
271
663ee6d9
NM
272NM/03 Bugzilla 847: Enable DNSDB lookup by default.
273
177ebd9b
NM
274NM/04 Bugzilla 915: Flag broken perl installation during build.
275
7c6d71af 276
210f147e
NM
277Exim version 4.70
278-----------------
279
cdd3bb85 280TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 281 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
282
283TK/02 Write list of recipients to X-Envelope-Sender header when building
284 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 285 Hirsch).
cdd3bb85
TK
286
287TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
288 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 289 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
290
291TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
292 by Mark Daniel Reidel <mr@df.eu>.
293
210f147e
NM
294NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
295 When building exim an external PCRE library is now needed -
296 PCRE is a system library on the majority of modern systems.
297 See entry on PCRE_LIBS in EDITME file.
298
deafd5b3
NM
299NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
300 conversation. Added nologin parameter to request.
7d9f747b 301 Patch contributed by Kirill Miazine.
deafd5b3 302
089793a4
TF
303TF/01 Do not log submission mode rewrites if they do not change the address.
304
5f16ca82
TF
305TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
306
dae9d94e 307NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 308 log files in place. Contributed by Roberto Lima.
dae9d94e 309
7d9f747b 310NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 311
06864c44
TF
312TF/03 Bugzilla 615: When checking the local_parts router precondition
313 after a local_part_suffix or local_part_prefix option, Exim now
314 does not use the address's named list lookup cache, since this
315 contains cached lookups for the whole local part.
316
65a7d8c3 317NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 318 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 319
23510047 320TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 321
7d9f747b 322NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 323
7d8eec3a 324NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 325 Patch provided by Jan Srzednicki.
6c588e74 326
89dec7b6
TF
327TF/05 Leading white space used to be stripped from $spam_report which
328 wrecked the formatting. Now it is preserved.
5f28a6e8 329
a99de90c
TF
330TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
331 that they are available at delivery time.
332
e2803e40
TF
333TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
334
7199e1ee
TF
335TF/08 TLS error reporting now respects the incoming_interface and
336 incoming_port log selectors.
337
e276e04b
TF
338TF/09 Produce a more useful error message if an SMTP transport's hosts
339 setting expands to an empty string.
340
ce552449 341NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 342 Patch provided by Phil Pennock.
ce552449 343
e765a0f1 344NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 345 Patch provided by Richard Godbee.
e765a0f1 346
4f054c63 347NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 348 acl_smtp_notquit, added index entry.
4f054c63 349
7d9f747b
PP
350NM/09 Bugzilla 787: Potential buffer overflow in string_format.
351 Patch provided by Eugene Bujak.
24c929a2 352
7d9f747b
PP
353NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
354 accept(). Patch provided by Maxim Dounin.
cf73943b 355
b52bc06e 356NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 357 Patch provided by Phil Pennock.
b52bc06e 358
447de4b0
NM
359NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
360
4c69d561 361NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 362 Patch provided by Brad "anomie" Jorsch.
4c69d561 363
d5c39246 364NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 365 Patch provided by Dean Brooks.
9b989985 366
0b23848a
TK
367TK/05 Add native DKIM support (does not depend on external libraries).
368
8f3414a1 369NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 370 Patch provided by Graeme Fowler.
e2aacdfd 371
fb6f955d
NM
372NM/16 Bugzilla 851: Documentation example syntax fix.
373
374NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 375
7d9f747b
PP
376NM/18 Bugzilla 894: Fix issue with very long lines including comments in
377 lsearch.
dbb0bf41 378
7d9f747b
PP
379NM/19 Bugzilla 745: TLS version reporting.
380 Patch provided by Phil Pennock.
f3766eb5 381
7d9f747b
PP
382NM/20 Bugzilla 167: bool: condition support.
383 Patch provided by Phil Pennock.
36f12725 384
7d9f747b
PP
385NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
386 clients. Patch provided by Phil Pennock.
e6060e2c 387
7d9f747b
PP
388NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
389 Patch provided by Brad "anomie" Jorsch.
5eb690a1 390
7d9f747b
PP
391NM/23 Bugzilla 687: Fix misparses in eximstats.
392 Patch provided by Heiko Schlittermann.
d5c13d66 393
7d9f747b
PP
394NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
395 Patch provided by Heiko Schlittermann.
b2335c0b 396
7d9f747b 397NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 398 plus update to original patch.
f4cd9433 399
7d9f747b 400NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 401
7d9f747b
PP
402NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
403 Patch provided by David Brownlee.
8dc71ab3 404
7d9f747b 405NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 406
7d9f747b 407NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 408
7d9f747b 409NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 410
7d9f747b 411NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 412
17792b53 413NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 414 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 415
7d9f747b
PP
416NM/33 Bugzilla 898: Transport filter timeout fix.
417 Patch by Todd Rinaldo.
52383f8f 418
7d9f747b
PP
419NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
420 Patch by Serge Demonchaux.
5ca6d115 421
7d9f747b
PP
422NM/35 Bugzilla 39: Base64 decode bug fixes.
423 Patch by Jakob Hirsch.
baee9eee 424
7d9f747b 425NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 426
7d9f747b 427NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 428
7d9f747b 429NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 430
7d9f747b 431NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 432
deafd5b3 433
47db1125
NM
434Exim version 4.69
435-----------------
436
4b3504d0
TK
437TK/01 Add preliminary DKIM support. Currently requires a forked version of
438 ALT-N's libdkim that I have put here:
439 http://duncanthrax.net/exim-experimental/
440
441 Note to Michael Haardt: I had to rename some vars in sieve.c. They
442 were called 'true' and it seems that C99 defines that as a reserved
443 keyword to be used with 'bool' variable types. That means you could
444 not include C99-style headers which use bools without triggering
445 build errors in sieve.c.
446
81ea09ca
NM
447NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
448 as mailq or other aliases. Changed the --help handling significantly
449 to do whats expected. exim_usage() emits usage/help information.
450
f13cddcb
SC
451SC/01 Added the -bylocaldomain option to eximstats.
452
7d9f747b 453NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 454
7d9f747b 455NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 456
7d9f747b 457NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
458
459
eb4c0de6
PH
460Exim version 4.68
461-----------------
462
463PH/01 Another patch from the Sieve maintainer.
464
6a3bceb1
PH
465PH/02 When an IPv6 address is converted to a string for single-key lookup
466 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
467 dots are used instead of colons so that keys in lsearch files need not
468 contain colons. This was done some time before quoting was made available
469 in lsearch files. However, iplsearch files do require colons in IPv6 keys
470 (notated using the quote facility) so as to distinguish them from IPv4
471 keys. This meant that lookups for IP addresses in host lists did not work
472 for iplsearch lookups.
473
474 This has been fixed by arranging for IPv6 addresses to be expressed with
475 colons if the lookup type is iplsearch. This is not incompatible, because
476 previously such lookups could never work.
477
478 The situation is now rather anomolous, since one *can* have colons in
479 ordinary lsearch keys. However, making the change in all cases is
480 incompatible and would probably break a number of configurations.
481
2e30fa9d
TK
482TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
483 version.
484
0806a9c5
MH
485MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
486 conversion specification without a maximum field width, thereby enabling
487 a rogue spamd server to cause a buffer overflow. While nobody in their
488 right mind would setup Exim to query an untrusted spamd server, an
489 attacker that gains access to a server running spamd could potentially
490 exploit this vulnerability to run arbitrary code as the Exim user.
491
ae276964
TK
492TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
493 $primary_hostname instead of what libspf2 thinks the hosts name is.
494
0f2cbd1b
MH
495MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
496 a directory entry by the name of the lookup key. Previously, if a
497 symlink pointed to a non-existing file or a file in a directory that
498 Exim lacked permissions to read, a lookup for a key matching that
499 symlink would fail. Now it is enough that a matching directory entry
500 exists, symlink or not. (Bugzilla 503.)
501
2b85bce7
PH
502PH/03 The body_linecount and body_zerocount variables are now exported in the
503 local_scan API.
504
93655c46
PH
505PH/04 Added the $dnslist_matched variable.
506
6c512171
PH
507PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
508 This means they are set thereafter only if the connection becomes
509 encrypted.
510
511PH/06 Added the client_condition to authenticators so that some can be skipped
512 by clients under certain conditions.
513
aa6dc513
PH
514PH/07 The error message for a badly-placed control=no_multiline_responses left
515 "_responses" off the end of the name.
516
a96603a0
PH
517PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
518
8f240103
PH
519PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
520 (without spaces) instead of just copying the configuration text.
521
522PH/10 Added the /noupdate option to the ratelimit ACL condition.
523
d677b2f2
PH
524PH/11 Added $max_received_linelength.
525
d52120f2
PH
526PH/12 Added +ignore_defer and +include_defer to host lists.
527
64f2600a
PH
528PH/13 Installed PCRE version 7.2. This needed some changes because of the new
529 way in which PCRE > 7.0 is built.
530
8669f003
PH
531PH/14 Implemented queue_only_load_latch.
532
a4dc33a8
PH
533PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
534 MAIL command. The effect was to mangle the value on 64-bit systems.
535
d6a60c0f
PH
536PH/16 Another patch from the Sieve maintainer.
537
8f128379
PH
538PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
539
8932dffe
PH
540PH/18 If a system quota error occurred while trying to create the file for
541 a maildir delivery, the message "Mailbox is full" was not appended to the
542 bounce if the delivery eventually timed out. Change 4.67/27 below applied
543 only to a quota excession during the actual writing of the file.
d6a60c0f 544
ddea74fa 545PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
546 characters?) which causes problems in log lines. The DN values are now
547 passed through string_printing() before being added to log lines.
548
ddea74fa 549PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
550 and InterBase are left for another time.)
551
ddea74fa
PH
552PH/21 Added message_body_newlines option.
553
ce9f225c
PH
554PH/22 Guard against possible overflow in moan_check_errorcopy().
555
19897d52
PH
556PH/23 POSIX allows open() to be a macro; guard against that.
557
bc64a74d
PH
558PH/24 If the recipient of an error message contained an @ in the local part
559 (suitably quoted, of course), incorrect values were put in $domain and
560 $local_part during the evaluation of errors_copy.
561
eb4c0de6 562
b4ed4da0
PH
563Exim version 4.67
564-----------------
565
22ad45c9
MH
566MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
567 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
568 Jan Srzednicki.
569
b4ed4da0
PH
570PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
571 issue a MAIL command.
572
431b7361
PH
573PH/02 In an ACL statement such as
574
575 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
576
577 if a client was not listed at all, or was listed with a value other than
578 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
579 the condition was not true (as it should be), so access was not denied.
580 The bug was that the ! inversion was incorrectly passed on to the second
581 item. This has been fixed.
582
583PH/03 Added additional dnslists conditions == and =& which are different from
584 = and & when the dns lookup returns more than one IP address.
585
83da1223
PH
586PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
587 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
588
54fc8428
PH
589PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
590 FSYNC, which compiles an option called disable_fsync that allows for
591 bypassing fsync(). The documentation is heavily laced with warnings.
592
34c5e8dd
SC
593SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
594
bbe15da8
PH
595PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
596 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
597 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
598 including adding "make clean"; (3) Added -fPIC when compiling the test
599 dynamically loaded module, to get rid of a warning.
600
0e8a9471
MH
601MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
602 message fails, move_frozen_messages = true and ignore_bounce_errors_after
603 = 0s. The bug is otherwise harmless.
604
f0872424
PH
605PH/07 There was a bug in the dovecot authenticator such that the value of
606 $auth1 could be overwritten, and so not correctly preserved, after a
607 successful authentication. This usually meant that the value preserved by
608 the server_setid option was incorrect.
609
b01dd148
PH
610PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
611
6bf342e1
PH
612PH/09 Installed PCRE release 7.0.
613
273f34d0
PH
614PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
615 run for batched SMTP input. It is now run at the start of every message
616 in the batch. While fixing this I discovered that the process information
617 (output by running exiwhat) was not always getting set for -bs and -bS
618 input. This is fixed, and it now also says "batched" for BSMTP.
619
cf8b11a5
PH
620PH/11 Added control=no_pipelining.
621
41c7c167
PH
622PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
623 patch, slightly modified), and move the expansion of helo_data till after
624 the connection is made in the smtp transport (so it can use these
625 values).
626
9c57cbc0
PH
627PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
628
f3f065bb
PH
629PH/14 Added log_selector = +pid.
630
047bdd8c
PH
631PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
632
0ce9abe6
PH
633PH/16 Add ${if forany and ${if forall.
634
0e22dfd1
PH
635PH/17 Added dsn_from option to vary the From: line in DSNs.
636
4c590bd1
PH
637PH/18 Flush SMTP output before performing a callout, unless control =
638 no_callout_flush is set.
639
09945f1e
PH
640PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
641 was true (the default) a successful delivery failed to delete the retry
642 item, thus causing premature timeout of the address. The bug is now
643 fixed.
644
c51b8e75
PH
645PH/20 Added hosts_avoid_pipelining to the smtp transport.
646
e28326d8
PH
647PH/21 Long custom messages for fakedefer and fakereject are now split up
648 into multiline reponses in the same way that messages for "deny" and
649 other ACL rejections are.
650
75b1493f
PH
651PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
652 with slight modification.
653
7c5214ec
PH
654PH/23 Applied sieve patches from the maintainer "tracking the latest notify
655 draft, changing the syntax and factoring some duplicate code".
656
4311097e
PH
657PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
658 for deliveries of the second and subsequent messages over the same SMTP
659 connection.
660
29f89cad
PH
661PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
662 ${reduce, with only minor "tidies".
663
5e687460
SC
664SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
665
c3611384
PH
666PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
667 expansion side effects.
668
5a11a7b4
PH
669PH/27 When a message times out after an over-quota error from an Exim-imposed
670 quota, the bounce message says "mailbox is full". This message was not
671 being given when it was a system quota that was exceeded. It now should
672 be the same.
673
0e20aff9
MH
674MH/03 Made $recipients available in local_scan(). local_scan() already has
675 better access to the recipient list through recipients_list[], but
676 $recipients can be useful in postmaster-provided expansion strings.
677
ca86f471
PH
678PH/28 The $smtp_command and $smtp_command_argument variables were not correct
679 in the case of a MAIL command with additional options following the
680 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
681 were accidentally chopped off.
682
a14e5636
PH
683PH/29 SMTP synchronization checks are implemented when a command is read -
684 there is a check that no more input is waiting when there shouldn't be
685 any. However, for some commands, a delay in an ACL can mean that it is
686 some time before the response is written. In this time, more input might
687 arrive, invalidly. So now there are extra checks after an ACL has run for
688 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
689 pipelining has not been advertised.
690
ec95d1a6
PH
691PH/30 MH's patch to allow iscntrl() characters to be list separators.
692
42855d71
PH
693PH/31 Unlike :fail:, a custom message specified with :defer: was not being
694 returned in the SMTP response when smtp_return_error_details was false.
695 This has been fixed.
696
57c2c631
PH
697PH/32 Change the Dovecot authenticator to use read() and write() on the socket
698 instead of the C I/O that was originally supplied, because problems were
699 reported on Solaris.
700
58c01c94
PH
701PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
702 Exim which did not show up earlier: it was assuming that a call to
703 SSL_CTX_set_info_callback() might give an error value. In fact, there is
704 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
705 was a macro that became an assignment, so it seemed to work. This has
706 changed to a proper function call with a void return, hence the compile
707 error. Exim's code has been fixed.
708
dee5a20a
PH
709PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
710 cpus.
711
d2ee6114
PH
712PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
713
b2d5182b
PH
714PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
715
79749a79
PH
716PH/37 If a message is not accepted after it has had an id assigned (e.g.
717 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
718 "Completed" line in the log. When some messages of this type were
719 selected by exigrep, they were listed as "not completed". Others were
720 picked up by some special patterns. I have improved the selection
721 criteria to be more general.
79749a79 722
c456d9bb
PH
723PH/38 The host_find_failed option in the manualroute router can now be set
724 to "ignore", to completely ignore a host whose IP address cannot be
725 found. If all hosts are ignored, the behaviour is controlled by the new
726 host_all_ignored option.
727
cd9868ec
PH
728PH/39 In a list of hosts for manualroute, if one item (either because of multi-
729 homing or because of multiple MX records with /mx) generated more than
730 one IP address, and the following item turned out to be the local host,
731 all the secondary addresses of the first item were incorrectly removed
732 from the list, along with the local host and any following hosts (which
733 is what is supposed to happen).
734
ebeaf996
PH
735PH/40 When Exim receives a message, it writes the login name, uid, and gid of
736 whoever called Exim into the -H file. In the case of the daemon it was
737 behaving confusingly. When first started, it used values for whoever
738 started the daemon, but after a SIGHUP it used the Exim user (because it
739 calls itself on a restart). I have changed the code so that it now always
740 uses the Exim user.
741
2679d413
PH
742PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
743 message are rejected with the same error (e.g. no authentication or bad
744 sender address), and a DATA command is nevertheless sent (as can happen
745 with PIPELINING or a stupid MUA), the error message that was given to the
746 RCPT commands is included in the rejection of the DATA command. This is
747 intended to be helpful for MUAs that show only the final error to their
748 users.
749
84024b72
PH
750PH/42 Another patch from the Sieve maintainer.
751
8005d38e
SC
752SC/02 Eximstats - Differentiate between permanent and temporary rejects.
753 Eximstats - Fixed some broken HTML links and added missing column headers
754 (Jez Hancock).
755 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
756 columns for Rejects, Temp Rejects, Ham, and Spam rows.
757
3298c6c6
SC
758SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
759
a43a27c5
PH
760PH/43 Yet another patch from the Sieve maintainer.
761
58eb016e 762PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
763 the response to the final '.' that terminates a message, but only in the
764 case where the client has not sent further data following the '.'
765 (unfortunately, this is allowed). However, in many cases there won't be
766 any further data because there won't be any more messages to send. A call
767 to select() can be used: if it shows that the input is "ready", there is
768 either input waiting, or the socket has been closed. An attempt to read
769 the next input character can distinguish the two cases. Previously, Exim
58eb016e 770 would have sent an OK response which the client would never have see.
563b63fa
PH
771 This could lead to message repetition. This fix should cure that, at
772 least in a lot of common cases.
58eb016e 773
b43a74ea
PH
774PH/45 Do not advertise STARTTLS in response to HELP unless it would be
775 advertised in response to EHLO.
776
b4ed4da0 777
5dd1517f
PH
778Exim version 4.66
779-----------------
780
781PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
782 fixed by 4.65/MH/01 (is this a record?) are fixed:
783
784 (i) An empty string was always treated as zero by the numeric comparison
785 operators. This behaviour has been restored.
786
787 (ii) It is documented that the numeric comparison operators always treat
788 their arguments as decimal numbers. This was broken in that numbers
789 starting with 0 were being interpreted as octal.
790
791 While fixing these problems I realized that there was another issue that
792 hadn't been noticed. Values of message_size_limit (both the global option
793 and the transport option) were treated as octal if they started with 0.
794 The documentation was vague. These values are now always treated as
795 decimal, and I will make that clear in the documentation.
796
797
93cfa765
TK
798Exim version 4.65
799-----------------
800
801TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
802 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
803 versions. (#438)
804
d6066548
MH
805MH/01 Don't check that the operands of numeric comparison operators are
806 integers when their expansion is in "skipping" mode (fixes bug
807 introduced by 4.64-PH/07).
808
4362ff0d
PH
809PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
810 child addresses, Exim now panics and dies. Previously, because the count
811 is held in a short int, deliveries were likely to be lost. As such a
812 large number of recipients for a single message is ridiculous
813 (performance will be very, very poor), I have chosen to impose a limit
814 rather than extend the field.
815
93cfa765 816
944e9e9c
TF
817Exim version 4.64
818-----------------
aa41d2de 819
21d74bd9
TK
820TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
821 leftover -K file (the existence of which was triggered by #402).
822 While we were at it, introduced process PID as part of the -K
823 filename. This should rule out race conditions when creating
824 these files.
825
826TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
827 processing considerably. Previous code took too long for large mails,
828 triggering a timeout which in turn triggers #401.
829
830TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
831 in the DK code in transports.c. sendfile() is not really portable,
832 hence the _LINUX specificness.
944e9e9c
TF
833
834TF/01 In the add_headers option to the mail command in an Exim filter,
835 there was a bug that Exim would claim a syntax error in any
836 header after the first one which had an odd number of characters
837 in the field name.
838
2b1c6e3a
PH
839PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
840 callout verification, Exim cached a "reject" for the entire domain. This
841 is correct for most verifications, but it is not correct for a recipient
842 verification with use_sender or use_postmaster set, because in that case
843 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
844 case of MAIL FROM:<> rejection from other early rejections (e.g.
845 rejection of HELO). When verifying a recipient using a non-null MAIL
846 address, the cache is ignored if it shows MAIL FROM:<> rejection.
847 Whatever the result of the callout, the value of the domain cache is
848 left unchanged (for any other kind of callout, getting as far as trying
849 RCPT means that the domain itself is ok).
850
1f872c80
PH
851PH/02 Tidied a number of unused variable and signed/unsigned warnings that
852 gcc 4.1.1 threw up.
853
854PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
855 manifest itself as EPIPE rather than ECONNECT. When tidying away a
856 session, the daemon ignores ECONNECT errors and logs others; it now
857 ignores EPIPE as well.
858
d203e649
PH
859PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
860 (quoted-printable decoding).
861
cc2ed8f7 862PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 863 later the small subsequent patch to fix an introduced bug.
f951fd57 864
ddfcd446
PH
865PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
866
d45b1de8
PH
867PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
868
869PH/08 An error is now given if message_size_limit is specified negative.
870
38a0a95f 871PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 872 to be given (somewhat) arbitrary names.
38a0a95f 873
a2405d83
JJ
874JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
875 in 4.64-PH/09.
876
877JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
878 miscellaneous code fixes
879
6ea85e9a
PH
880PH/10 Added the log_reject_target ACL modifier to specify where to log
881 rejections.
882
26da7e20
PH
883PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
884 hostname. This is wrong, because it relates to the incoming message (and
885 probably the interface on which it is arriving) and not to the outgoing
886 callout (which could be using a different interface). This has been
887 changed to use the value of the helo_data option from the smtp transport
888 instead - this is what is used when a message is actually being sent. If
889 there is no remote transport (possible with a router that sets up host
890 addresses), $smtp_active_hostname is used.
6ea85e9a 891
14aa5a05 892PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 893 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
894 (a) The code assumed that strncpy() returns a negative number on buffer
895 overflow, which isn't the case. Replaced with Exim's string_format()
896 function.
897 (b) There were several signed/unsigned issues. I just did the minimum
898 hacking in of casts. There is scope for a larger refactoring.
899 (c) The code used strcasecmp() which is not a standard C function.
900 Replaced with Exim's strcmpic() function.
901 (d) The code set only $1; it now sets $auth1 as well.
902 (e) A simple test gave the error "authentication client didn't specify
903 service in request". It would seem that Dovecot has changed its
904 interface. Fortunately there's a specification; I followed it and
905 changed what the client sends and it appears to be working now.
906
ff75a1f7
PH
907PH/13 Added $message_headers_raw to provide the headers without RFC 2047
908 decoding.
909
e6f6568e
PH
910PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
911 address A is aliased to B and C, where B exists and C does not. Without
912 -v the output is "A verified" because verification stops after a
913 successful redirection if more than one address is generated. However,
914 with -v the child addresses are also verified. Exim was outputting "A
915 failed to verify" and then showing the successful verification for C,
916 with its parentage. It now outputs "B failed to verify", showing B's
917 parentage before showing the successful verification of C.
918
d6f6e0dc
PH
919PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
920 look up a TXT record in a specific list after matching in a combined
921 list.
922
322050c2
PH
923PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
924 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
925 they consult the DNS. I had assumed they would set it the way they
926 wanted; and indeed my experiments on Linux seem to show that in some
927 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
928 To be on the safe side, however, I have now made the interface to
929 host_find_byname() similar to host_find_bydns(), with an argument
930 containing the DNS resolver options. The host_find_byname() function now
931 sets these options at its start, just as host_find_bydns() does. The smtp
932 transport options dns_qualify_single and dns_search_parents are passed to
933 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
934 of host_find_byname() use the default settings of RES_DEFNAMES
935 (qualify_single) but not RES_DNSRCH (search_parents).
936
08955dd3
PH
937PH/17 Applied (a modified version of) Nico Erfurth's patch to make
938 spool_read_header() do less string testing, by means of a preliminary
939 switch on the second character of optional "-foo" lines. (This is
940 overdue, caused by the large number of possibilities that now exist.
941 Originally there were few.) While I was there, I also converted the
942 str(n)cmp tests so they don't re-test the leading "-" and the first
943 character, in the hope this might squeeze out yet more improvement.
944
1eccaa59
PH
945PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
946 flag allowing group syntax was set by the header_syntax check but not
947 turned off, possible causing trouble later; (2) The flag was not being
948 set at all for the header_verify test, causing "group"-style headers to
949 be rejected. I have now set it in this case, and also caused header_
950 verify to ignore an empty address taken from a group. While doing this, I
951 came across some other cases where the code for allowing group syntax
952 while scanning a header line wasn't quite right (mostly, not resetting
953 the flag correctly in the right place). These bugs could have caused
954 trouble for malformed header lines. I hope it is now all correct.
955
602e59e5
PH
956PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
957 with the "reply" argument non-NULL. The code, however (which originally
958 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
959 but it didn't always do it. This confused somebody who was copying the
960 code for some other use. I have removed all the tests.
961
411ef850
PH
962PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
963 feature that was used to support insecure browsers during the U.S. crypto
964 embargo. It requires special client support, and Exim is probably the
965 only MTA that supported it -- and would never use it because real RSA is
966 always available. This code has been removed, because it had the bad
967 effect of slowing Exim down by computing (never used) parameters for the
968 RSA_EXPORT functionality.
969
7befa435
PH
970PH/21 On the advice of Timo Sirainen, added a check to the dovecot
971 authenticator to fail if there's a tab character in the incoming data
972 (there should never be unless someone is messing about, as it's supposed
973 to be base64-encoded). Also added, on Timo's advice, the "secured" option
974 if the connection is using TLS or if the remote IP is the same as the
975 local IP, and the "valid-client-cert option" if a client certificate has
976 been verified.
977
48da4259 978PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
979 authenticators. This can be used for authorization after authentication
980 succeeds. (In the case of plaintext, it servers for both authentication
981 and authorization.)
982
48da4259
PH
983PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
984 if any retry times were supplied.
985
d1d5595c
PH
986PH/24 Exim crashed if verify=helo was activated during an incoming -bs
987 connection, where there is no client IP address to check. In this
988 situation, the verify now always succeeds.
989
0ef732d9
PH
990PH/25 Applied John Jetmore's -Mset patch.
991
328895cc
PH
992PH/26 Added -bem to be like -Mset, but loading a message from a file.
993
fd700877
PH
994PH/27 In a string expansion for a processed (not raw) header when multiple
995 headers of the same name were present, leading whitespace was being
996 removed from all of them, but trailing whitespace was being removed only
997 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
998 before concatenation. Completely empty headers in a concatenation (as
999 before) are ignored.
fd700877 1000
8dce1a6f
PH
1001PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1002 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1003
17af4a17
PH
1004PH/29 [Removed. This was a change that I later backed out, and forgot to
1005 correct the ChangeLog entry (that I had efficiently created) before
1006 committing the later change.]
f6c332bd
PH
1007
1008PH/30 Exim was sometimes attempting to deliver messages that had suffered
1009 address errors (4xx response to RCPT) over the same connection as other
1010 messages routed to the same hosts. Such deliveries are always "forced",
1011 so retry times are not inspected. This resulted in far too many retries
1012 for the affected addresses. The effect occurred only when there were more
1013 hosts than the hosts_max_try setting in the smtp transport when it had
1014 the 4xx errors. Those hosts that it had tried were not added to the list
1015 of hosts for which the message was waiting, so if all were tried, there
1016 was no problem. Two fixes have been applied:
1017
1018 (i) If there are any address or message errors in an SMTP delivery, none
1019 of the hosts (tried or untried) are now added to the list of hosts
1020 for which the message is waiting, so the message should not be a
1021 candidate for sending over the same connection that was used for a
1022 successful delivery of some other message. This seems entirely
1023 reasonable: after all the message is NOT "waiting for some host".
1024 This is so "obvious" that I'm not sure why it wasn't done
1025 previously. Hope I haven't missed anything, but it can't do any
1026 harm, as the worst effect is to miss an optimization.
1027
1028 (ii) If, despite (i), such a delivery is accidentally attempted, the
1029 routing retry time is respected, so at least it doesn't keep
1030 hammering the server.
1031
c1114884
PH
1032PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1033 in ${readsocket because some servers need this prod.
1034
7a0743eb
PH
1035PH/32 Added some extra debug output when updating a wait-xxx database.
1036
0d85fa3f
PH
1037PH/33 The hint "could be header name not terminated by colon", which has been
1038 given for certain expansion errors for a long time, was not being given
1039 for the ${if def:h_colon_omitted{... case.
1040
1bf43b78
PH
1041PH/34 The spec says: "With one important exception, whenever a domain list is
1042 being scanned, $domain contains the subject domain." There was at least
1043 one case where this was not true.
1044
520de300
PH
1045PH/35 The error "getsockname() failed: connection reset by peer" was being
1046 written to the panic log as well as the main log, but it isn't really
1047 panic-worthy as it just means the connection died rather early on. I have
1048 removed the panic log writing for the ECONNRESET error when getsockname()
1049 fails.
1050
48c7f9e2
PH
1051PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1052 runs only) independently of the message's sender address. This meant
1053 that, if the 4xx error was in fact related to the sender, a different
1054 message to the same recipient with a different sender could confuse
1055 things. In particualar, this can happen when sending to a greylisting
1056 server, but other circumstances could also provoke similar problems.
1057 I have changed the default so that the retry time for these errors is now
1058 based a combination of the sender and recipient addresses. This change
1059 can be overridden by setting address_retry_include_sender=false in the
1060 smtp transport.
1061
99ea1c86
PH
1062PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1063 remote server are returned as part of bounce messages. This was not
1064 happening for LMTP over a pipe (the lmtp transport), but now it is the
1065 same for both kinds of LMTP.
1066
a2042e78
PH
1067PH/38 Despite being documented as not happening, Exim was rewriting addresses
1068 in header lines that were in fact CNAMEs. This is no longer the case.
1069
4fbcfc2e
PH
1070PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1071 and queue runs started by the daemon processed all messages. This has
1072 been fixed so that -R and -S can now usefully be given with -q<time>.
1073
aa41d2de
PH
1074PH/40 Import PCRE release 6.7 (fixes some bugs).
1075
af561417
PH
1076PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1077
3cc66b45
PH
1078PH/42 Give an error if -q is specified more than once.
1079
194cc0e4
PH
1080PH/43 Renamed the variables $interface_address and $interface_port as
1081 $received_ip_address and $received_port, to make it clear that these
1082 values apply to message reception, and not to the outgoing interface when
1083 a message is delivered. (The old names remain recognized, of course.)
1084
a401ddaa
PH
1085PH/44 There was no timeout on the connect() call when using a Unix domain
1086 socket in the ${readsocket expansion. There now is.
1087
4e88a19f
PH
1088PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1089 be meaningful with "accept".
1090
d7d7b289
SC
1091SC/01 Eximstats V1.43
1092 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1093
1094SC/02 Eximstats V1.44
1095 Use a glob alias rather than an array ref in the generated
1096 parser. This improves both readability and performance.
1097
1098SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1099 Collect SpamAssassin and rejection statistics.
1100 Don't display local sender or destination tables unless
1101 there is data to show.
1102 Added average volumes into the top table text output.
1103
1104SC/04 Eximstats V1.46
1105 Collect data on the number of addresses (recipients)
1106 as well as the number of messages.
1107
1108SC/05 Eximstats V1.47
1109 Added 'Message too big' to the list of mail rejection
1110 reasons (thanks to Marco Gaiarin).
1111
1112SC/06 Eximstats V1.48
1113 Mainlog lines which have GMT offsets and are too short to
1114 have a flag are now skipped.
1115
1116SC/07 Eximstats V1.49 (Alain Williams)
1117 Added the -emptyok flag.
1118
1119SC/08 Eximstats V1.50
1120 Fixes for obtaining the IP address from reject messages.
1121
0ea2a468
JJ
1122JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1123 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1124 whitesspace changes from 4.64-PH/27
1125
1126JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1127 match 4.64-PH/13
1128
1129JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1130 are found, allow negative numbers in numeric criteria)
1131
1132JJ/06 exipick.20061117.2, added new $message_body_missing variable
1133
1134JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1135 to match changes made in 4.64-PH/43
1136
8a10f5a4
PH
1137PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1138
30e18802
PH
1139PH/47 Put in an explicit test for a DNS lookup of an address record where the
1140 "domain" is actually an IP address, and force a failure. This locks out
1141 those revolvers/nameservers that support "A-for-A" lookups, in
1142 contravention of the specifications.
1143
55728a4f
PH
1144PH/48 When a host name was looked up from an IP address, and the subsequent
1145 forward lookup of the name timed out, the host name was left in
1146 $sender_host_name, contrary to the specification.
d7d7b289 1147
d7837193
PH
1148PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1149 restricted to single-key lookups, Exim was not diagnosing an error if
1150 * or *@ was used with a query-style lookup.
1151
87054a31
PH
1152PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1153
ea2c01d2
MH
1154MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1155 long ago, but noone interested enough thought of it. Let's just say that
1156 the "1.1" means that there are some new functions that weren't there at
1157 some point in the past.
1158
e4fa6968
PH
1159PH/51 Error processing for expansion failure of helo_data from an smtp
1160 transport during callout processing was broken.
1161
56f5d9bd
PH
1162PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1163 tested/used via the -bh/-bhc/-bs options.
1164
922e1c28
PH
1165PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1166 bug, fixed in subsequent PCRE releases).
1167
21eb6e72
PH
1168PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1169 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1170
a0540757
PH
1171PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1172
944e9e9c 1173
478be7b0
SC
1174Exim version 4.63
1175-----------------
1176
1177SC/01 Use a glob alias rather than an array ref in eximstats generated
1178 parser. This improves both readability and performance.
1179
1180SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1181 Don't display local sender or destination tables in eximstats unless
1182 there is data to show.
1183 Added average volumes into the eximstats top table text output.
1184
1185SC/03 Collect data on the number of addresses (recipients) as well
1186 as the number of messages in eximstats.
1187
2b965a65
TF
1188TF/01 Correct an error in the documentation for the redirect router. Exim
1189 does (usually) call initgroups() when daemonizing.
478be7b0 1190
45b91596
PH
1191TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1192 with consistent privilege compared to when running as a daemon.
478be7b0 1193
c59f5781
TF
1194TF/03 Note in the spec that $authenticated_id is not set for local
1195 submissions from trusted users.
1196
90fc3069
TF
1197TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1198 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1199
6083aca0
TF
1200TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1201 by adding some example configuration directives to the default
1202 configuration file. A little bit of work is required to uncomment the
1203 directives and define how usernames and passwords are checked, but
1204 there is now a framework to start from.
1205
765b530f
PH
1206PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1207 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1208 without this. I don't know how relevant this is to other LDAP libraries.
1209
4e167a8c
PH
1210PH/02 Add the verb name to the "unknown ACL verb" error.
1211
4608d683
PH
1212PH/03 Magnus Holmgren's patch for filter_prepend_home.
1213
b8dc3e4a
PH
1214PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1215
5418e93b
PH
1216PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1217 directory not expanded when it should be if an expanded home directory
1218 was set for the address (which is overridden by the transport).
1219
b4a9bda2
PH
1220PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1221 libradius.
1222
45b91596
PH
1223PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1224 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1225 because it is too late at that time, and has no effect.
1226
5547e2c5
PH
1227PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1228 security issue with \' (bugzilla #107). I could not use the
1229 PQescapeStringConn() function, because it needs a PGconn value as one of
1230 its arguments.
1231
dbcef0ea
PH
1232PH/08 When testing addresses using -bt, indicate those final addresses that
1233 are duplicates that would not cause an additional delivery. At least one
1234 person was confused, thinking that -bt output corresponded to deliveries.
1235 (Suppressing duplicates isn't a good idea as you lose the information
1236 about possibly different redirections that led to the duplicates.)
1237
25257489
PH
1238PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1239 systems where poll() doesn't work, in particular OS X.
1240
c816d124
PH
1241PH/10 Added more information to debugging output for retry time not reached.
1242
a9ccd69a
PH
1243PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1244 operations in malware.c.
1245
75fa1910
PH
1246PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1247 signatures.
1248
a7d7aa58
PH
1249PH/13 If write_rejectlog was set false when logging was sent to syslog with
1250 syslog_duplication set false, log lines that would normally be written
1251 both the the main log and to the reject log were not written to syslog at
1252 all.
1253
42119b09
PH
1254PH/14 In the default configuration, change the use of "message" in ACL warn
1255 statements to "add_header".
1256
41609df5
PH
1257PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1258 not followed by a command (e.g. "seen endif").
1259
a5bd321b
PH
1260PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1261 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1262 latter.
1263
e85a7ad5 1264PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1265 so that it is now:
1266
e85a7ad5
PH
1267 ${if or { \
1268 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1269 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1270 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1271 }{no}{yes}}
1272
e85a7ad5
PH
1273 The Auto-Submitted: and various List- headers are standardised, whereas I
1274 don't think Precedence: ever was.
5dff5817 1275
d8fe1c03
PH
1276PH/18 Refactored debugging code in route_finduser() to show more information,
1277 in particular, the error code if getpwnam() issues one.
1278
16282d2b
PH
1279PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1280 This is apparently needed in addition to the PH/07 change above to avoid
1281 any possible encoding problems.
1282
35d40a98
PH
1283PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1284 but not after initializing Perl.
1285
034d99ab
PH
1286PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1287 output them only if debugging. By default they are written stderr,
1288 apparently, which is not desirable.
1289
6ec97b1b
PH
1290PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1291 queries.
1292
e22ca4ac
JJ
1293JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1294 --not options
1295
1296JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1297
33d73e3b
PH
1298PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1299 authenticated or an ident call has been made. Suppress the default
1300 values for $authenticated_id and $authenticated_sender (but permit -oMai
1301 and -oMas) when testing with -bh.
1302
9ecb03f3
PH
1303PH/24 Re-jigged the order of the tests in the default configuration so that the
1304 tests for valid domains and recipients precede the DNS black list and CSA
1305 tests, on the grounds that those ones are more expensive.
1306
084efe8d
PH
1307PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1308 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1309 This bug exists in every version of Exim that I still have, right back to
1310 0.12.
1311
366fc9f0
PH
1312PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1313 However, an attempt to turn on case-sensitivity in a regex key by
1314 including (?-i) didn't work because the subject string was already
1315 lowercased, and the effects were non-intuitive. It turns out that a
1316 one-line patch can be used to allow (?-i) to work as expected.
1317
c59f5781 1318
c887c79e
TF
1319Exim version 4.62
1320-----------------
1321
1322TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1323 other effects) broke the use of negated acl sub-conditions.
1324
1cce3af8
PH
1325PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1326 patch).
1327
afb3eaaf
PH
1328PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1329 "Deny" causes Exim to reject the incoming connection with a 554 error.
1330 Unfortunately, if there is a major crisis, such as a disk failure,
1331 tcp-wrappers gives "deny", whereas what one would like would be some
1332 kind of temporary error. A kludge has been added to help with this.
1333 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1334 554 error is used if errno is still zero or contains ENOENT (which occurs
1335 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1336 451 error is used.
1337
e173618b
PH
1338PH/03 Add -lutil to the default FreeBSD LIBS setting.
1339
dd16e114
PH
1340PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1341 errors. Otherwise a message that provokes a temporary error (when other
1342 messages do not) can cause a whole host to time out.
1343
f7fd3850
PH
1344PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1345 addresses were routed directly to files or pipes from a redirect router.
1346 File deliveries just didn't batch; pipe deliveries might have suffered
1347 odd errors.
1348
d87df92c
PH
1349PH/06 A failure to get a lock for a hints database would erroneously always say
1350 "Failed to get write lock", even when it was really a read lock.
1351
7e9f683d
PH
1352PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1353 of 0600. This has been changed to use the value of the lockfile_mode
1354 option (which defaults to 0600).
1355
bfad5236
PH
1356PH/08 Applied small patch from the Sieve maintainer.
1357
01c490df
PH
1358PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1359 folder from quota calculations, a direct delivery into this folder messed
1360 up the contents of the maildirsize file. This was because the regex was
1361 used only to exclude .Trash (or whatever) when the size of the mailbox
1362 was calculated. There was no check that a delivery was happening into an
1363 excluded directory. This bug has been fixed by ignoring all quota
1364 processing for deliveries into excluded directories.
1365
d6629cdc
PH
1366PH/10 Added the maildirfolder_create_regex option to appendfile.
1367
1cce3af8 1368
214e2000
PH
1369Exim version 4.61
1370-----------------
1371
1372PH/01 The code for finding all the local interface addresses on a FreeBSD
1373 system running IPv6 was broken. This may well have applied to all BSD
1374 systems, as well as to others that have similar system calls. The broken
1375 code found IPv4 interfaces correctly, but gave incorrect values for the
1376 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1377 that it would not match correctly against @[] and not recognize the IPv6
1378 addresses as local.
1379
f9daeae0
PH
1380PH/02 The ipliteral router was not recognizing addresses of the form user@
1381 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1382
7e66e54d
PH
1383PH/03 Added disable_ipv6.
1384
c8ea1597
PH
1385PH/04 Changed $reply_address to use the raw form of the headers instead of the
1386 decoded form, because it is most often used to construct To: headers
1387 lines in autoreplies, and the decoded form may well be syntactically
1388 invalid. However, $reply_address has leading white space removed, and all
1389 newlines turned into spaces so that the autoreply transport does not
1390 grumble.
1391
911f6fde
PH
1392PH/05 If group was specified without a user on a router, and no group or user
1393 was specified on a transport, the group from the router was ignored.
1394
47ca6d6c
PH
1395PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1396 for visible compile-time settings that can be used to change these
1397 numbers, for those that want even more. Backwards compatibility with old
1398 spool files has been maintained. However, going back to a previous Exim
1399 release will lost any variables that are in spool files.
1400
ed0e9820
PH
1401PH/07 Two small changes when running in the test harness: increase delay when
1402 passing a TCP/IP connection to a new process, in case the original
1403 process has to generate a bounce, and remove special handling of
1404 127.0.0.2 (sic), which is no longer necessary.
1405
eff37e47
PH
1406PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1407 be the same on different OS.
1408
1921d2ea
PH
1409PH/09 Moved a debug statement in filter processing to avoid a race problem when
1410 testing.
1411
b3f69ca8
JJ
1412JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1413 whether --show-vars was specified or not
1414
1415JJ/02 exipick: Added support for new ACL variable spool format introduced
1416 in 4.61-PH/06
1417
424a1c63
PH
1418PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1419 syntactically invalid From: or Reply-to: line, and a filter used this to
1420 generate an autoreply, and therefore failed to obtain an address for the
1421 autoreply, Exim could try to deliver to a non-existent relative file
1422 name, causing unrelated and misleading errors. What now happens is that
1423 it logs this as a hard delivery error, but does not attempt to create a
1424 bounce message.
1425
7a100415
PH
1426PH/11 The exinext utility has a -C option for testing purposes, but although
1427 the given file was scanned by exinext itself; it wasn't being passed on
1428 when Exim was called.
1429
19b9dc85
PH
1430PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1431 an end-of-file indication when reading a command response.
1432
309bd837
PH
1433PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1434 compiled. In many other places in Exim, IPv6 addresses are always
1435 recognized, so I have changed this. It also means that IPv4 domain
1436 literals of the form [IPV4:n.n.n.n] are now always recognized.
1437
59e82a2a
PH
1438PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1439 used if the router is not running as root, for example, when verifying at
1440 ACL time, or when using -bh. The debugging output from this situation was
1441 non-existent - all you got was a failure to exec. I have made two
1442 changes:
1443
1444 (a) Failures to set uid/gid, the current directory, or a process leader
1445 in a subprocess such as that created by queryprogram now generate
1446 suitable debugging ouput when -d is set.
1447
1448 (b) The queryprogram router detects when it is not running as root,
1449 outputs suitable debugging information if -d is set, and then runs
1450 the subprocess without attempting to change uid/gid.
1451
9edc04ce
PH
1452PH/15 Minor change to Makefile for building test_host (undocumented testing
1453 feature).
1454
1349e1e5
PH
1455PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1456 additional section of a DNS packet that returns MX or SRV records.
1457 Instead, it always explicitly searches for A/AAAA records. This avoids
1458 major problems that occur when a DNS server includes only records of one
1459 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1460 fixed another bug: if SRV records were looked up and the corresponding
1461 address records were *not* found in the additional section, the port
1462 values from the SRV records were lost.
1463
ea49d0e1
PH
1464PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1465 using the correct key (the original address) when searching the retry
1466 rules in order to find which one to use for generating the retry hint.
1467
064a94c9
PH
1468PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1469 adding the default one. Similarly, if it contains a Reply-To: header, the
1470 errors_reply_to option, if set, is not used.
1471
727071f8
PH
1472PH/19 When calculating a retry time, Exim used to measure the "time since
1473 failure" by looking at the "first failed" field in the retry record. Now
1474 it does not use this if it is later than than the arrival time of the
1475 message. Instead it uses the arrival time. This makes for better
1476 behaviour in cases where some deliveries succeed, thus re-setting the
1477 "first failed" field. An example is a quota failure for a huge message
1478 when small messages continue to be delivered. Without this change, the
1479 "time since failure" will always be short, possible causing more frequent
1480 delivery attempts for the huge message than are intended.
dd16e114 1481 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1482
f78eb7c6
PH
1483PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1484 $1, $2, $3) because the numerical variables can be reset during some
1485 expansion items (e.g. "match"), thereby losing the authentication data.
1486
21c28500
PH
1487PH/21 Make -bV show the size of off_t variables so that the test suite can
1488 decide whether to run tests for quotas > 2G.
1489
1490PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1491 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1492 filecount value is greater than 2G or if a quota value is greater than 2G
1493 on a system where the size of off_t is not greater than 4, a panic error
1494 is given.
1495
1688f43b
PH
1496PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1497 never match. The debug and -bh output now contains an explicit error
1498 message indicating a malformed IPv4 address or mask.
1499
1500PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1501 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1502 PH/23 above applies.
1503
9675b384
PH
1504PH/25 Do not write to syslog when running in the test harness. The only
1505 occasion when this arises is a failure to open the main or panic logs
1506 (for which there is an explicit test).
1507
6a3f1455
PH
1508PH/26 Added the /no_tell option to "control=freeze".
1509
dac79d3e
PH
1510PH/27 If a host name lookup failed very early in a connection, for example, if
1511 the IP address matched host_lookup and the reverse lookup yielded a name
1512 that did not have a forward lookup, an error message of the form "no IP
1513 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1514 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1515
5977a0b3
PH
1516PH/28 An enabling patch from MH: add new function child_open_exim2() which
1517 allows the sender and the authenticated sender to be set when
1518 submitting a message from within Exim. Since child_open_exim() is
1519 documented for local_scan(), the new function should be too.
1520
c91535f3
PH
1521PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1522 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1523 results in an empty string is now treated as unset.
1524
0d46a8c8
PH
1525PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1526
278c6e6c
PH
1527PH/31 Added sender_verify_fail logging option.
1528
2cbb4081
PH
1529PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1530 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1531 tidied the source and removed it altogether.
1532
3eef829e
PH
1533PH/33 When a queue run was abandoned because the load average was too high, a
1534 log line was always written; now it is written only if the queue_run log
1535 selector is set. In addition, the log line for abandonment now contains
1536 information about the queue run such as the pid. This is always present
1537 in "start" and "stop" lines but was omitted from the "abandon" line.
1538
1ab95fa6
PH
1539PH/34 Omit spaces between a header name and the colon in the error message that
1540 is given when verify = headers_syntax fails (if there are lots of them,
1541 the message gets confusing).
1542
230205fc
PH
1543PH/35 Change the default for dns_check_names_pattern to allow slashes within
1544 names, as there are now some PTR records that contain slashes. This check
1545 is only to protect against broken name servers that fall over on strange
1546 characters, so the fact that it applies to all lookups doesn't matter.
1547
75e0e026
PH
1548PH/36 Now that the new test suite is complete, we can remove some of the
1549 special code in Exim that was needed for the old test suite. For example,
1550 sorting DNS records because real resolvers return them in an arbitrary
1551 order. The new test suite's fake resolver always returns records in the
1552 same order.
1553
1554PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1555 bounces) except when queue_only is set, to avoid logging races between
1556 the different processes.
1557
145396a6
PH
1558PH/38 Panic-die if .include specifies a non-absolute path.
1559
3cd34f13
PH
1560PH/39 A tweak to the "H" retry rule from its user.
1561
11121d3d
JJ
1562JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1563 a label. They prevented compilation on older perls.
1564
1565JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1566 a warning to be raised on newish perls.
1567
1568JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1569 on queue. Changes to match documented behaviour of showing count of
1570 messages matching specified criteria.
1571
8def5aaf
PH
1572PH/40 Changed the default ident timeout from 30s to 5s.
1573
929ba01c
PH
1574PH/41 Added support for the use of login_cap features, on those BSD systems
1575 that have them, for controlling the resources used by pipe deliveries.
1576
2632889e
PH
1577PH/42 The content-scanning code uses fopen() to create files in which to put
1578 message data. Previously it was not paying any attention to the mode of
1579 the files. Exim runs with umask(0) because the rest of the code creates
1580 files with open(), and sets the required mode explicitly. Thus, these
1581 files were ending up world-writeable. This was not a big issue, because,
1582 being within the spool directory, they were not world-accessible. I have
1583 created a function called modefopen, which takes an additional mode
1584 argument. It sets umask(777), creates the file, chmods it to the required
1585 mode, then resets the umask. All the relevant calls to fopen() in the
1586 content scanning code have been changed to use this function.
1587
944a9c55
PH
1588PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1589 to 24 hours. This avoids potential overflow problems when processing G
1590 and H retry rules. I suspect nobody ever tinkers with this value.
1591
4a23603b
PH
1592PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1593
4730f942
PH
1594PH/45 When the plaintext authenticator is running as a client, the server's
1595 challenges are checked to ensure they are valid base64 strings. By
1596 default, the authentication attempt is cancelled if an invalid string is
1597 received. Setting client_ignore_invalid_base64 true ignores these errors.
1598 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1599 they are received. Thus, the responses can be made to depend on the
1600 challenges. If an invalid string is ignored, an empty string is placed in
1601 the variable.
1602
30dba1e6
PH
1603PH/46 Messages that are created by the autoreply transport now contains a
1604 References: header, in accordance with RFCs 2822 and 3834.
1605
382afc6b
PH
1606PH/47 Added authenticated_sender_force to the smtp transport.
1607
a86229cf
PH
1608PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1609
50c99ba6
PH
1610PH/49 Installed latest patch from the Sieve maintainer.
1611
d35e429d
PH
1612PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1613 was also set, the appendfile transport was unnecessarily scanning a
1614 directory of message files (e.g. for maildir delivery) to find the count
1615 of files (along with the size), even though it did not need this
1616 information. It now does the scan only if it needs to find either the
1617 size of the count of files.
1618
f90d018c
PH
1619PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1620
75def545
PH
1621PH/52 Two bugs concerned with error handling when the smtp transport is
1622 used in LMTP mode:
1623
1624 (i) Exim was not creating retry information for temporary errors given
1625 for individual recipients after the DATA command when the smtp transport
1626 was used in LMTP mode. This meant that they could be retried too
1627 frequently, and not timed out correctly.
1628
1629 (ii) Exim was setting the flag that allows error details to be returned
1630 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1631 recipients that were returned after the DATA command.
1632
1633PH/53 This is related to PH/52, but is more general: for any failing address,
1634 when detailed error information was permitted to be returned to the
1635 sender, but the error was temporary, then after the final timeout, only
1636 "retry timeout exceeded" was returned. Now it returns the full error as
1637 well as "retry timeout exceeded".
1638
c46782ef
PH
1639PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1640 do this, and (what is worse) MTAs that accept it.
1641
71fafd95
PH
1642PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1643 will now be deprecated.
1644
2c5db4fd
PH
1645PH/56 New os.c-cygwin from the Cygwin maintainer.
1646
9cf6b11a
JJ
1647JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1648 formats (previously only available in exim formats via -bpr, -bpru,
1649 and -bpra. Now also available in native and exiqgrep formats)
1650
1651JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1652 with very large, slow to parse queues
1653
1654JJ/08 exipick: added ! as generic prefix to negate any criteria format
1655
1656JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1657
898d150f
PH
1658PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1659 responses to authentication challenges, though it was showing the
1660 challenges; (ii) I've removed the CR characters from the debug output for
1661 SMTP output lines.
1662
46218253
PH
1663PH/58 Allow for the insertion of a newline as well as a space when a string
1664 is turned into more than one encoded-word during RFC 2047 encoding. The
1665 Sieve code now uses this.
1666
e97957bc
PH
1667PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1668 data_4xx, lost_connection, tls_required.
1669
81e509d7
PH
1670PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1671 message was being sent as an SMTP response.
1672
3d240ff7
PH
1673PH/61 Add -l and -k options to exicyclog.
1674
b37c4101
PH
1675PH/62 When verifying, if an address was redirected to one new address, so that
1676 verification continued, and the new address failed or deferred after
1677 having set something in $address_data, the value of $address_data was not
1678 passed back to the ACL. This was different to the case when no
1679 redirection occurred. The value is now passed back in both cases.
1680
79378e0f
PH
1681PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1682 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1683 use login_cap.h, so on its own it isn't the distinguishing feature. The
1684 new name refers directly to the setclassresources() function.
1685
e49c7bb4
PH
1686PH/65 Added configuration files for NetBSD3.
1687
d114ec46
PH
1688PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1689
f3d7df6c
PH
1690PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1691 is preferred over IPv4.
1692
715ab376
PH
1693PH/68 The bounce_return_message and bounce_return_body options were not being
1694 honoured for bounces generated during the reception of non-SMTP messages.
1695 In particular, this applied to messages rejected by the ACL. This bug has
1696 been fixed. However, if bounce_return_message is true and bounce_return_
1697 body is false, the headers that are returned for a non-SMTP message
1698 include only those that have been read before the error was detected.
1699 (In the case of an ACL rejection, they have all been read.)
1700
6b31b150
PH
1701PH/69 The HTML version of the specification is now built in a directory called
1702 spec_html instead of spec.html, because the latter looks like a path with
1703 a MIME-type, and this confuses some software.
1704
1705PH/70 Catch two compiler warnings in sieve.c.
1706
d515a917
PH
1707PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1708 function verify_get_ident() calls ip_connect() to connect a socket, but
1709 if the "connect()" function timed out, ip_connect() used to close the
1710 socket. However, verify_get_ident() also closes the socket later, and in
1711 between Exim writes to the log, which may get opened at this point. When
1712 the socket was closed in ip_connect(), the log could get the same file
1713 descriptor number as the socket. This naturally causes chaos. The fix is
1714 not to close the socket in ip_connect(); the socket should be closed by
1715 the function that creates it. There was only one place in the code where
1716 this was missing, in the iplookup router, which I don't think anybody now
1717 uses, but I've fixed it anyway.
1718
9b8fadde
PH
1719PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1720 well as to direct DNS lookups. Otherwise the handling of names in host
1721 lists is inconsistent and therefore confusing.
1722
214e2000 1723
5de37277
PH
1724Exim version 4.60
1725-----------------
1726
cc38ddbf
PH
1727PH/01 Two changes to the default runtime configuration:
1728
1729 (1) Move the checks for relay_from_hosts and authenticated clients from
1730 after to before the (commented out) DNS black list checks.
1731
1732 (2) Add control=submission to the relay_from_hosts and authenticated
1733 clients checks, on the grounds that messages accepted by these
1734 statements are most likely to be submissions.
5de37277 1735
72fdd6ae
PH
1736PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1737
1738 (1) Generate an error if the third argument for the ${prvs expansion is
1739 not a single digit.
1740
1741 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1742 string.
1743
1744 (3) Reset the variables that are obtained from the first argument of
1745 ${prvscheck and used in the second argument before leaving the code,
1746 because their memory is reclaimed, so using them afterwards may do
1747 silly things.
1748
1749 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1750 one (it's much easier than Tom thought :-).
1751
1752 (5) Because of (4), we can now allow for the use of $prvscheck_result
1753 inside the third argument.
cb9328de 1754
cb741023
PH
1755PH/03 For some reason, the default setting of PATH when running a command from
1756 a pipe transport was just "/usr/bin". I have changed it to
1757 "/bin:/usr/bin".
1758
f174f16e
PH
1759PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1760 anything to be listed in the output from -bV.
b2f5a032 1761
c25242d7
PH
1762PH/05 When a filter generated an autoreply, the entire To: header line was
1763 quoted in the delivery log line, like this:
1764
1765 => >A.N.Other <ano@some.domain> <original@ddress> ...
1766
1767 This has been changed so that it extracts the operative address. There
1768 may be more than one such address. If so, they are comma-separated, like
1769 this:
1770
1771 => >ano@some.domain,ona@other.domain <original@ddress> ...
1772
82c19f95
PH
1773PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1774 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1775 not being looked up in the rDNS to get a host name, Exim was showing the
1776 IP address twice in Received: lines, even though the IP addresses were
1777 identical. For example:
1778
1779 Received: from [1.2.3.4] (helo=[1.2.3.4])
1780
1781 However, if the real host name was known, it was omitting the HELO data
1782 if it matched the actual IP address. This has been tidied up so that it
1783 doesn't show the same IP address twice.
1784
d7ffbc12
PH
1785PH/07 When both +timestamp and +memory debugging was on, the value given by
1786 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1787 called by the debug printing, thereby overwriting the timestamp buffer.
1788 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1789
9f526266
PH
1790PH/08 When the original message was included in an autoreply transport, it
1791 always said "this is a copy of the message, including all the headers",
1792 even if body_only or headers_only was set. It now gives an appropriate
1793 message.
1794
87fcc8b9
PH
1795PH/09 Applied a patch from the Sieve maintainer which:
1796
1797 o fixes some comments
1798 o adds the (disabled) notify extension core
1799 o adds some debug output for the result of if/elsif tests
1800 o points to the current vacation draft in the documentation
1801 and documents the missing references header update
1802
1803 and most important:
1804
1805 o fixes a bug in processing the envelope test (when testing
1806 multiple envelope elements, the last element determinted the
1807 result)
1808
456682f5
PH
1809PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1810 Electronic Mail") by including:
1811
1812 Auto-submitted: auto-generated
1813
1814 in the messages that it generates (bounce messages and others, such as
1815 warnings). In the case of bounce messages for non-SMTP mesages, there was
1816 also a typo: it was using "Auto_submitted" (underscore instead of
1817 hyphen). Since every message generated by Exim is necessarily in response
1818 to another message, thes have all been changed to:
1819
1820 Auto-Submitted: auto-replied
1821
1822 in accordance with these statements in the RFC:
1823
1824 The auto-replied keyword:
1825
1826 - SHOULD be used on messages sent in direct response to another
1827 message by an automatic process,
1828
1829 - MUST NOT be used on manually-generated messages,
1830
1831 - MAY be used on Delivery Status Notifications (DSNs) and Message
1832 Disposition Notifications (MDNs),
1833
1834 - MUST NOT be used on messages generated by automatic or periodic
1835 processes, except for messages which are automatic responses to
1836 other messages.
1837
3e46c1aa
PH
1838PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1839 to the default Received: header definition.
456682f5 1840
49826d12
PH
1841PH/12 Added log selector acl_warn_skipped (default on).
1842
eba0c039
PH
1843PH/13 After a successful wildlsearch lookup, discard the values of numeric
1844 variables because (a) they are in the wrong storage pool and (b) even if
1845 they were copied, it wouldn't work properly because of the caching.
1846
a0d6ba8a
PH
1847PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1848 checking when decoding. Apparently there are clients that generate
1849 overlong encoded strings. Why am I not surprised?
1850
f0917727
PH
1851PH/15 If the first argument of "${if match_address" was not empty, but did not
1852 contain an "@" character, Exim crashed. Now it writes a panic log message
1853 and treats the condition as false.
1854
096fee00
PH
1855PH/16 In autoreply, treat an empty string for "once" the same as unset.
1856
024bd3c2
PH
1857PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1858 extension "envelope-auth". The code is finished and in agreement with
1859 other implementations, but there is no documentation so far and in fact,
1860 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1861 not changing the active code.
1862
1863 Print executed "if" and "elsif" statements when debugging is used. This
1864 helps a great deal to understand what a filter does.
1865
1866 Document more things not specified clearly in RFC3028. I had all this
1867 sorted out, when out of a sudden new issues came to my mind. Oops."
1868
df199fec
PH
1869PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1870 (Bugzilla #53).
1871
d27f1df3
PH
1872PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1873 canonical form (as documented). However, after a host name lookup from
1874 the IP address, check_host() was doing a simple string comparison with
1875 addresses acquired from the DNS when checking that the found name did
1876 have the original IP as one of its addresses. Since any found IPv6
1877 addresses are likely to be in abbreviated form, the comparison could
1878 fail. Luckily, there already exists a function for doing the comparison
1879 by converting both addresses to binary, so now that is used instead of
1880 the text comparison.
1881
96776534
PH
1882PH/20 There was another similar case to PH/19, when a complete host name was
1883 given in a host list; looking up its IP address could give an abbreviated
1884 form, whereas the current host's name might or might not be abbreviated.
1885 The same fix has been applied.
1886
5de37277 1887
9a799bc0
PH
1888Exim version 4.54
1889-----------------
1890
1891PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1892 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1893 It now does.
1894
99a4b039
PH
1895PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1896 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1897
1898PH/03 Typo: missing ".o" in src/pcre/Makefile.
1899
4b233853
PH
1900PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1901 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1902 Also, for "Auto-Submitted", treat anything other than "no" as
1903 non-personal, in accordance with RFC 3834. (Previously it treated
1904 anything starting "auto-" as non-personal.)
1905
8857ccfd
PH
1906TF/01 The control=submission/name=... option had a problem with syntax
1907 errors if the name included a slash character. The /name= option
1908 now slurps the rest of the string, so it can include any characters
1909 but it must come last in the list of options (after /sender_retain
1910 or /domain=).
1911
433a2980
PH
1912PH/05 Some modifications to the interface to the fake nameserver for the new
1913 testing suite.
1914
3e46c1aa 1915
9a799bc0 1916
e3a311ba
TK
1917Exim version 4.53
1918-----------------
1919
1920TK/01 Added the "success_on_redirect" address verification option. See
1921 NewStuff for rationale and an example.
1922
13b685f9
PH
1923PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1924
395ff96d
PH
1925PH/02 Patch to exigrep to allow it to work on syslog lines.
1926
5b68f6e4
PH
1927PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1928 fread() to skip over the body file's header line, because in Cygwin the
1929 header line is locked and is inaccessible.
1930
1ab52c69
PH
1931PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1932 co-exist for some time) to make it clear that it is the Exim ID that is
1933 referenced, not the Message-ID: header line.
1934
b07e6aa3
PH
1935PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1936 string_format() function, because snprintf() does not exist on all
1937 operating systems.
1938
254e032f
PH
1939PH/06 The use of forbid_filter_existstest now also locks out the use of the
1940 ${stat: expansion item.
1941
3af76a81
PH
1942PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1943 protocol synchronization error", to keep the pedants happy.
1944
2548ba04
PH
1945PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1946 well as for IRIX systems, when gcc is being used. See the host.c source
1947 file for comments.
1948
b6c6011d
PH
1949PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1950
cf39cf57
PH
1951PH/10 Named domain lists were not working if used in a queue_smtp_domains
1952 setting.
1953
f1513293
PH
1954PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1955 transport and to the smtp transport in LMTP mode.
1956
727549a4
PH
1957TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1958
af46795e
PH
1959PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1960 run a filter in a subprocess. This could lead to confusion in subsequent
1961 lookups in the parent process. There should also be a search_tidyup() at
1962 the end of the subprocess.
1963
d7b47fd0
PH
1964PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1965 only if the host matched helo_try_verify_hosts, which caused the
1966 verification to occur when the EHLO/HELO command was issued. The ACL just
1967 tested the remembered result. Now, if a previous verification attempt has
1968 not happened, "verify = helo" does it there and then.
1969
ee744174
JJ
1970JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1971
b582ab87
PH
1972TK/03 Fix log output including CR from clamd.
1973
41a13e0a
PH
1974PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1975 exist provoked a memory error which could cause a segfault.
1976
f625cc5a
PH
1977PH/15 Installed PCRE 6.2
1978
1979PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1980
21f7af35
PH
1981PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1982 of the problem. Specifically, suggested +O2 rather than +O1 for the
1983 HP-UX compiler.
1984
31480e42
PH
1985PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1986
2d280592
PH
1987PH/20 If a delivery was routed to a non-standard port by means of an SRV
1988 record, the port was not correctly logged when the outgoing_port log
1989 selector was set (it logged the transort's default port).
1990
7cd1141b
PH
1991PH/21 Added support for host-specific ports to manualroute, queryprogram,
1992 fallback_hosts, and "hosts" in the smtp transport.
1993
1994PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1995 host errors such as "Connection refused".
1996
750af86e
PH
1997PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1998 authentication with radiusclient 0.4.9:
1999
2000 - Error returned from rc_read_config was caught wrongly
2001 - Username/password not passed on to radius server due to wrong length.
2002
2003 The presumption is that some radiusclient API changes for 4.51/PH/17
2004 were not taken care of correctly. The code is still untested by me (my
2005 Linux distribution still has 0.3.2 of radiusclient), but it was
2006 contributed by a Radius user.
2007
2008PH/24 When doing a callout, the value of $domain wasn't set correctly when
2009 expanding the "port" option of the smtp transport.
2010
4304270b
TK
2011TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2012 while reading a MIME header. Thanks to Tom Hughes for a patch.
2013
750af86e
PH
2014PH/24 Include config.h inside local_scan.h so that configuration settings are
2015 available.
2016
64ffc24f
PH
2017PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2018 that in an ACL for RCPT (for example), you can examine exactly what was
2019 received.
2020
5dd9625b
PH
2021PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2022 commands, but it was not correctly comparing the address with the actual
2023 client host address. Thus, it would show the EHLO address in Received:
2024 header lines when this was not necessary.
2025
5591031b
PH
2026PH/27 Added the % operator to ${eval:}.
2027
ba18e66a
PH
2028PH/28 Exim tries to create and chdir to its spool directory when it starts;
2029 it should be ignoring failures (because with -C, for example, it has lost
2030 privilege). It wasn't ignoring creation failures other than "already
2031 exists".
2032
9cec981f
PH
2033PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2034 -bV or -d is used.
2035
aa2b5c79
PH
2036PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2037 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2038 too many continuations, the temporary file was not being removed, and the
2039 return code was incorrect.
aa2b5c79 2040
48a53b7f
PH
2041PH/31 Missing "BOOL" in function definition in filtertest.c.
2042
1c59d63b
PH
2043PH/32 Applied Sieve patches from the maintainer.
2044
671012da
TK
2045TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2046
1509d3a8
PH
2047PH/33 Added "verify = not_blind".
2048
2049PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2050 Local/Makefile (with some defaults set). These are used in built scripts
2051 such as exicyclog, but they have never been used in the exim_install
2052 script (though there are many overriding facilities there). I have
2053 arranged that the exim_install script now takes note of these two
2054 settings.
2055
2056PH/35 Installed configuration files for Dragonfly.
2057
2fe1a124
PH
2058PH/36 When a locally submitted message by a trusted user did not contain a
2059 From: header, and the sender address was obtained from -f or from an SMTP
2060 MAIL command, and the trusted user did not use -F to supply a sender
2061 name, $originator_name was incorrectly used when constructing a From:
2062 header. Furthermore, $originator_name was used for submission mode
2063 messages from external hosts without From: headers in a similar way,
2064 which is clearly wrong.
2065
8800895a
PH
2066PH/37 Added control=suppress_local_fixups.
2067
ccfdb010
PH
2068PH/38 When log_selector = +received_sender was set, and the addition of the
2069 sender made the log line's construction buffer exactly full, or one byte
2070 less than full, an overflow happened when the terminating "\n" was
2071 subsequently added.
2072
1130bfb0
PH
2073PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2074 when the result of a list match is failure because a DNS lookup failed.
2075
ebcb507f
PH
2076PH/40 RM_COMMAND is now used in the building process.
2077
c35e155c
PH
2078PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2079 the "build-* directories that it finds.
2080
95d1f782
PH
2081PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2082 address in a domain literal was a prefix of an interface address.
2083
fd6de02e
PH
2084PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2085 when verifying a sender address, unless rewrite_headers is false.
2086
58de37c5
PH
2087PH/44 Wrote a long comment about why errors_to addresses are verified as
2088 recipients, not senders.
2089
261cf466
TF
2090TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2091 the ratelimit ACL was added.
2092
3ee512ff
PH
2093PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2094
e08c430f
PH
2095PH/46 Added extra information about PostgreSQL errors to the error string.
2096
bef5a11f
PH
2097PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2098 avoiding the need to install special zones in a real server. This is
2099 backwards compatible; if it can't find the fake resolver, it drops back.
2100 Thus, both old and new test suites can be run.
2101
7546de58
TF
2102TF/02 Added util/ratelimit.pl
2103
e5d5a95f
TF
2104TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2105 clock is set back in time.
2106
2e88a017
TF
2107TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2108 Candler <B.Candler@pobox.com>.
2109
a5f65aa4
TF
2110TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2111 OK for addresses that are the result of redirections.
2112
e7726cbf
PH
2113PH/48 A number of further additions for the benefit of the new test suite,
2114 including a fake gethostbyname() that interfaces to the fake DNS resolver
2115 (see PH/47 above).
2116
a7fdad5b
TF
2117TF/06 The fix for widen_domains has also been applied to qualify_single and
2118 search_parents which are the other dnslookup options that can cause
2119 header rewrites.
2120
6af56900
PH
2121PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2122 type ("H").
2123
0925ede6
PH
2124PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2125
66afa403
TF
2126TF/07 Exim produced the error message "an SRV record indicated no SMTP
2127 service" if it encountered an MX record with an empty target hostname.
2128 The message is now "an MX or SRV record indicated no SMTP service".
2129
0154e85a
TF
2130TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2131 if the DNS of the sending site is misconfigured. This is quite a
2132 common situation. This change restores the behaviour of treating a
2133 helo verification defer as a failure.
2134
16f12c76
PH
2135PH/51 If self=fail was set on a router, the bounce message did not include the
2136 actual error message.
2137
bbe902f0 2138
e5a9dba6
PH
2139Exim version 4.52
2140-----------------
2141
2142TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2143
22c3b60b
PH
2144PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2145 command itself ended in error, the underlying message about the transport
2146 filter timeout was being overwritten with the pipe command error. Now the
2147 underlying error message should be appended to the second error message.
2148
06a9b4b5
PH
2149TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2150
c1ac6996
PH
2151PH/02 Reduce the amount of output that "make" produces by default. Full output
2152 can still be requested.
2153
9c7a242c
PH
2154PH/03 The warning log line about a condition test deferring for a "warn" verb
2155 was being output only once per connection, rather than after each
2156 occurrence (because it was using the same function as for successful
2157 "warn" verbs). This seems wrong, so I have changed it.
2158
87ba3f5f
PH
2159TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2160 it should not have, which might have caused a crash in the right
2161 circumstances, but probably never did.
2162
2163PH/04 Installed a modified version of Tony Finch's patch to make submission
2164 mode fix the return path as well as the Sender: header line, and to
2165 add a /name= option so that you can make the user's friendly name appear
2166 in the header line.
2167
29aba418
TF
2168TF/03 Added the control = fakedefer ACL modifier.
2169
fe0dab11
TF
2170TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2171 Mark Lowes for thorough testing.
870f6ba8 2172
11d337a4
TK
2173TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2174
2175TK/03 Merged latest SRS patch from Miles Wilton.
2176
415c8f3b
PH
2177PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2178 with the definition in sysexits.h (which is #included earlier).
2179 Fortunately, Exim does not actually use EX_OK. The code used to try to
2180 preserve the sysexits.h value, by assumimg that macro definitions were
2181 scanned for macro replacements. I have been disabused of this notion,
2182 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2183
958541e9
PH
2184PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2185 in the smtp transport. When a block could not be written in a single
2186 write() function, the timeout was being re-applied to each part-write.
2187 This seems wrong - if the receiver was accepting one byte at a time it
2188 would take for ever. The timeout is now adjusted when this happens. It
2189 doesn't have to be particularly precise.
2190
c206415f
TK
2191TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2192 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2193
2a4be8f9
PH
2194PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2195 without a domain if the check to <postmaster@domain> fails.
2196
1cba11c5
SC
2197SC/01 Eximstats: added -xls and the ability to specify output files
2198 (patch written by Frank Heydlauf).
2199
2200SC/02 Eximstats: use FileHandles for outputing results.
2201
2202SC/03 Eximstats: allow any combination of xls, txt, and html output.
2203
2204SC/04 Eximstats: fixed display of large numbers with -nvr option
2205
2206SC/05 Eximstats: fixed merging of reports with empty tables.
2207
2208SC/06 Eximstats: added the -include_original_destination flag
2209
2210SC/07 Eximstats: removed tabs and trailing whitespace.
2211
1005d00e
TK
2212TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2213
2214TK/06 MBOX spool code: Add real "From " MBOX separator line
2215 so the .eml file is really in mbox format (even though
2216 most programs do not really care). Patch from Alex Miller.
2217
2218TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2219 The latter is generated from $received_to and is only set if the
2220 message has one envelope recipient. SA can use these headers,
2221 obviously out-of-the-box. Patch from Alex Miller.
2222
9b4768fa
PH
2223PH/08 The ${def test on a variable was returning false if the variable's
2224 value was "0", contrary to what the specification has always said!
2225 The result should be true unless the variable is empty.
2226
2227PH/09 The syntax error of a character other than { following "${if
2228 def:variable_name" (after optional whitespace) was not being diagnosed.
2229 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2230 accidental colon was present, for example, could give incorrect results.
2231
0d7eb84a
PH
2232PH/10 Tidied the code in a number of places where the st_size field of a stat()
2233 result is used (not including appendfile, where other changes are about
2234 to be made).
2235
2236PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2237 This involved changing a lot of size variables from int to off_t. It
2238 should work with maildirs and everything.
2239
40727bee
TK
2240TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2241 spamd dying while we are connected to it.
2242
554d2369
TF
2243TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2244 <jgh@wizmail.org>
2245
1f922db1
PH
2246PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2247 function for BDB 4.3.
2248
ef213c3b
PH
2249PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2250
8ac170f3
PH
2251PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2252 the sources for PCRE have been re-arranged and more files are now
2253 involved.
2254
b1c749bb
PH
2255PH/15 The code I had for printing potentially long long variables in PH/11
2256 above was not the best (it lost precision). The length of off_t variables
2257 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2258 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2259 to be "long long int" or "long int". This is needed for the internal
2260 formatting function string_vformat().
b1c749bb 2261
4aac9b49
PH
2262PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2263 the configuration file to be ":syslog", then the script "guesses" where
2264 the logs files are, rather than using the compiled in default. In our
2265 case the guess is not the same as the compiled default, so the script
2266 suddenly stopped working when I started to use syslog. The patch checks
2267 to see if log_file_path is "". If so, it attempts to read it from exim
2268 with no configuration file to get the compiled in version, before it
2269 falls back to the previous guessing code."
2270
294520c8
TK
2271TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2272 implementing BATV in an Exim configuration. See NewStuff for the gory
2273 details.
2274
5bd022fe
PH
2275PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2276 Makefile that are specific to HP-UX.
2277
90e9ce59
PH
2278PH/18 If the "use_postmaster" option was set for a recipient callout together
2279 with the "random" option, the postmaster address was used as the MAIL
2280 FROM address for the random test, but not for the subsequent recipient
2281 test. It is now used for both.
2282
5ea81592
PH
2283PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2284 patch removes a few documentation additions to RFC 3028, because the
2285 latest draft now contains them. It adds the new en;ascii-case comparator
2286 and a new error check for 8bit text in MIME parts. Comparator and
2287 require names are now matched exactly. I enabled the subaddress
2288 extension, but it is not well tested yet (read: it works for me)."
2289
c6c2dc1d
PH
2290PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2291 rework some of the code of TK/09 above to avoid the hardwired use of
2292 "%lld" and "long long". Replaced the call to snprintf() with a call to
2293 string_vformat().
2294
fffffe4c
PH
2295PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2296 records point to non-existent hosts", "retry timeout exceeded", and
2297 "retry time not reached for any host after a long failure period".
ca02eafb 2298
9a26b6b2
PH
2299PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2300 experimental DomainKeys support:
2301
2302 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2303 (2) On an error such as an illegally used "control", the wrong name for
2304 the control was given.
2305
2306 These problems did NOT occur unless DomainKeys support was compiled.
2307
4aee0225
PH
2308PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2309
32d668a5
PH
2310PH/24 Added ${if match_ip condition.
2311
8187c3f3
PH
2312PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2313 databases so that it will be absolutely obvious if a crash occurs in the
2314 DB library. This is a regular occurrence (often caused by mis-matched
2315 db.h files).
2316
ff790e47 2317PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2318 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2319 picked up on a user's system that detects such things. There doesn't seem
2320 to be a gcc warning option for this - only an attribute that has to be
2321 put on the function's prototype. It seems that in Fedora Core 4 they have
2322 set this on a number of new functions. No doubt there will be more in due
2323 course.
ff790e47 2324
5417f6d1
PH
2325PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2326 specify a transport. However, if an address that was verified by such a
2327 router was the subject of a callout, Exim crashed because it tried to
2328 read the rcpt_include_affixes from the non-existent transport. Now it
2329 just assumes that the setting of that option is false. This bug was
2330 introduced by 4.51/PH/31.
2331
59cf8544
PH
2332PH/28 Changed -d+all to exclude +memory, because that information is very
2333 rarely of interest, but it makes the output a lot bigger. People tend to
2334 do -d+all out of habit.
2335
e7ad8a65
PH
2336PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2337 code in os-type was giving problems when libc.so lives in lib64, like on
2338 x86_64 Fedora Core.
2339
ade42478
PH
2340PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2341 aren't the modern standard, and it seems that some systems' include files
2342 don't always have them. Exim was already checking for some of the newer
2343 ones like T_AAAA, and defining it itself. I've added checks for all the
2344 record types that Exim uses.
2345
182ad5cf
PH
2346PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2347 not automatically generating a new one, as it is supposed to. This
2348 prevented TLS from working. If the file did exist, but contained invalid
2349 data, a new version was generated, as expected. It was only the case of a
2350 non-existent file that was broken.
2351
b0d9fc80
TK
2352TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2353 with a change in libdomainkeys > 0.64.
2354
2355TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2356 from DNS. If the selector record carries the flag, it now has
2357 precedence over the domain-wide flag.
2358
2359TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2360
47c7a64a
PH
2361PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2362 the use of a port name that isn't defined in /etc/services) occurred, the
2363 message was deferred as in a normal delivery, and thus remained on the
2364 spool, instead of being failed because of the mua_wrapper setting. This
2365 is now fixed, and I tidied up some of the mua_wrapper messages at the
2366 same time.
2367
a388bce4
SC
2368SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2369 the messages in a hash of arrays rather than using individual hashes.
2370 This is a bit cleaner and results in dramatic memory savings, albeit
2371 at a slight CPU cost.
2372
2373SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2374 as requested by Marc Sherman.
2375
2376SC/10 Eximstats: added histograms for user specified patterns as requested
2377 by Marc Sherman.
2378
0793e4ed
SC
2379SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2380
c58b88df
PH
2381PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2382 fopen() in the content-scanning modules that did not already have it.
2383
e7ad8a65 2384
7982096b
PH
2385Exim version 4.51
2386-----------------
2387
1a46a8c5
PH
2388TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2389 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2390
2f079f46 2391TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2392
2393TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2394
2395PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2396 to test Sieve filters that use "vacation".
2397
2398PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2399 that changes the way the GnuTLS parameters are stored in the cache file.
2400 The new format can be generated externally. For backward compatibility,
2401 if the data in the cache doesn't make sense, Exim assumes it has read an
2402 old-format file, and it generates new data and writes a new file. This
2403 means that you can't go back to an older release without removing the
2404 file.
2405
2406PH/03 A redirect router that has both "unseen" and "one_time" set does not
2407 work if there are any delivery delays because "one_time" forces the
2408 parent to be marked "delivered", so its unseen clone is never tried
2409 again. For this reason, Exim now forbids the simultaneous setting of
2410 these two options.
2411
2412PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2413 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2414 entry if you want to know the details. The fix, however, neglected to
2415 consider the case when local delivery batching is involved. The test for
2416 "previously delivered" was not happening when checking to see if an
2417 address could be batched with a previous (undelivered) one; under
2418 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2419 address.
1a46a8c5
PH
2420
2421PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2422 in its include files, and this causes problems building Exim.
2423
2424PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2425 header_syntax) but Exim was just ignoring anything given after a slash.
2426 In particular, this caused confusion with an attempt to use "verify =
2427 reverse_host_lookup/defer_ok". An error is now given when options are
2428 supplied for verify items that do not have them. (Maybe reverse_host_
2429 lookup should have a defer_ok option, but that's a different point.)
2430
2431PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2432 defined by RFC 821) to 2048, because there were problems with some AUTH
2433 commands, and RFC 1869 says the size should be increased for extended
2434 SMTP commands that take arguments.
2435
2436PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2437 Finch).
2438
2439PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2440 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2441
49c2d5ea
PH
2442PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2443 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2444 whatever). Otherwise the password may appear in the log. Following change
2445 PH/42 below, there is no longer a chance of it appearing in a bounce
2446 message.
49c2d5ea 2447
bf759a8b
PH
2448PH/11 Installed exipick version 20050225.0 from John Jetmore.
2449
83364d30
PH
2450PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2451 of its addresses was ever tried. (Bugzilla bug #2.)
2452
7999bbd7
PH
2453PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2454 the result incorrectly in the debug output. (It correctly added a newline
2455 to what was transported.)
2456
7dbf77c9
PH
2457TF/01 Added $received_time.
2458
74e0617f
PH
2459PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2460 commented out examples of how to interface to a virus scanner and to
2461 SpamAssassin. Also added commented examples of av_scanner and
2462 spamd_address settings.
2463
2f079f46
PH
2464PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2465 and controls are allowed in which ACLs. There were a couple of minor
2466 errors. Some of the entries in the conditions table (which is a table of
2467 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2468 negation of where the condition IS allowed.
2469
8c841523
PH
2470PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2471
7766a4f0
PH
2472PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2473 header file does not have a version number, so I've had to invent a new
2474 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2475 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2476 radiusclient), but it was contributed by a Radius user.
2477
8b417f2c
PH
2478PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2479 files or directories, for OpenSSL.
2480
901f42cb
PH
2481PH/19 When an Exim process that is running as root has to create an Exim log
2482 file, it does so in a subprocess that runs as exim:exim so as to get the
2483 ownership right at creation (otherwise, other Exim processes might see
2484 the file with the wrong ownership). There was no test for failure of this
2485 fork() call, which would lead to the process getting stuck as it waited
2486 for a non-existent subprocess. Forks do occasionally fail when resources
2487 run out. I reviewed all the other calls to fork(); they all seem to check
2488 for failure.
2489
f9b9210e
PH
2490PH/20 When checking for unexpected SMTP input at connect time (before writing
2491 the banner), Exim was not dealing correctly with a non-positive return
2492 from the read() function. If the client had disconnected by this time,
2493 the result was a log entry for a synchronization error with an empty
2494 string after "input=" when read() returned zero. If read() returned -1
2495 (an event I could not check), uninitialized data bytes were printed.
2496 There were reports of junk text (parts of files, etc) appearing after
2497 "input=".
2498
54cdb463
PH
2499PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2500
cf00dad6
PH
2501PH/22 Added support for macro redefinition, and (re)definition in between
2502 driver and ACL definitions.
2503
acb1b346
PH
2504PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2505 forgetting to use the resulting value; it was using the unexpanded value.
2506
c5ddb310
PH
2507PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2508 hadn't been configured. The fix is from Juergen Kreileder, who
2509 understands it better than I do:
2510
2511 "Here's what I see happening with three configured cyrus_sasl
2512 authenticators configured (plain, login, cram-md5):
2513
2514 On startup auth_cyrus_sasl_init() gets called for each of these.
2515 This means three calls to sasl_listmech() without a specified mech_list.
2516 => SASL tests which mechs of all available mechs actually work
2517 => three warnings about OTP not working
2518 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2519
2520 With the patch, sasl_listmech() also gets called three times. But now
2521 SASL's mech_list option is set to the server_mech specified in the the
2522 authenticator. Or in other words, the answer from sasl_listmech()
2523 gets limited to just the mech you're testing for (which is different
2524 for each call.)
2525 => the return list contains just 'plain' or 'login', 'cram-md5' or
2526 nothing depending on the value of ob->server_mech.
2527
2528 I've just tested the patch: Authentication still works fine,
2529 unavailable mechs specified in the exim configuration are still
2530 caught, and the auth.log warnings about OTP are gone."
2531
31619da6
PH
2532PH/25 When debugging is enabled, the contents of the command line are added
2533 to the debugging output, even when log_selector=+arguments is not
2534 specified.
2535
bebaf0fc
PH
2536PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2537 answer is "GNU", and only if the return is "GNU/something" is the answer
2538 "Linux".
2539
475fe28a
PH
2540PH/27 $acl_verify_message is now set immediately after the failure of a
2541 verification in an ACL, and so is available in subsequent modifiers. In
2542 particular, the message can be preserved by coding like this:
2543
2544 warn !verify = sender
2545 set acl_m0 = $acl_verify_message
2546
2547 Previously, $acl_verify_message was set only while expanding "message"
2548 and "log_message" when a very denied access.
2549
7e8bec7a
PH
2550PH/28 Modified OS/os.c-Linux with
2551
2552 -#ifndef OS_LOAD_AVERAGE
2553 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2554
2555 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2556 nomenclature these days.)
2557
e4a89c47
PH
2558PH/29 Installed patch from the Sieve maintainer that adds the options
2559 sieve_useraddress and sieve_subaddress to the redirect router.
2560
5ca2a9a1
PH
2561PH/30 In these circumstances:
2562 . Two addresses routed to the same list of hosts;
2563 . First host does not offer TLS;
2564 . First host accepts first address;
2565 . First host gives temporary error to second address;
2566 . Second host offers TLS and a TLS session is established;
2567 . Second host accepts second address.
2568 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2569 and peerdn, if requested) that were in fact used only for the second
2570 address.
7e8bec7a 2571
c688b954
PH
2572PH/31 When doing a callout as part of verifying an address, Exim was not paying
2573 attention to any local part prefix or suffix that was matched by the
2574 router that accepted the address. It now behaves in the same way as it
2575 does for delivery: the affixes are removed from the local part unless
2576 rcpt_include_affixes is set on the transport.
2577
fed77020
PH
2578PH/32 Add the sender address, as F=<...>, to the log line when logging a
2579 timeout during the DATA phase of an incoming message.
2580
7fe1560f
PH
2581PH/33 Sieve envelope tests were broken for match types other than :is. I have
2582 applied a patch sanctioned by the Sieve maintainer.
c688b954 2583
ebb6e6d5
PH
2584PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2585 the uid or gid is negative. A case of a negative gid caused this to be
2586 noticed. The fix allows for either to be negative.
2587
9c4e8f60
PH
2588PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2589 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2590 overlooked.
2591
2592PH/36 The change PH/12 above was broken. Fixed it.
2593
d7174846
PH
2594PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2595 the grounds that routing the same address twice would always produce the
2596 same answer. This might have been true once, but it is certainly no
2597 longer true now. Routing a child address may depend on the previous
2598 routing that produced that child. Some complicated redirection strategies
2599 went wrong when messages had multiple recipients, and made Exim's
2600 behaviour dependent on the order in which the addresses were given.
2601
2602 I have moved the duplicate checking until after the routing is complete.
2603 Exim scans the addresses that are assigned to local and remote
2604 transports, and removes any duplicates. This means that more work will be
2605 done, as duplicates will always all be routed, but duplicates are
2606 presumably rare, so I don't expect this is of any significance.
2607
2608 For deliveries to pipes, files, and autoreplies, the duplicate checking
2609 still happens during the routing process, since they are not going to be
2610 routed further.
2611
cfe75fc3
PH
2612PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2613 It corrects a timeout issue with spamd. This is Ian's comment: "The
2614 background is that sometimes spamd either never reads data from a
2615 connection it has accepted, or it never writes response data. The exiscan
2616 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2617 blindly assumes that writes won't block so it may never time out."
2618
be22d70e
PH
2619PH/39 Allow G after quota size as well as K and M.
2620
0612b098
PH
2621PH/40 The value set for $authenticated_id in an authenticator may not contain
2622 binary zeroes or newlines because the value is written to log lines and
2623 to spool files. There was no check on this. Now the value is run through
2624 the string_printing() function so that such characters are converted to
2625 printable escape sequences.
2626
2e0c1448
PH
2627PH/41 $message_linecount is a new variable that contains the total number of
2628 lines in the message. Compare $body_linecount, which is the count for the
2629 body only.
2630
447d236c
PH
2631PH/42 Exim no longer gives details of delivery errors for specific addresses in
2632 bounce and delay warning messages, except in certain special cases, which
2633 are as follows:
2634
2635 (a) An SMTP error message from a remote host;
2636 (b) A message specified in a :fail: redirection;
2637 (c) A message specified in a "fail" command in a system filter;
2638 (d) A message specified in a FAIL return from the queryprogram router;
2639 (e) A message specified by the cannot_route_message router option.
2640
2641 In these cases only, Exim does include the error details in bounce and
2642 warning messages. There are also a few cases where bland messages such
2643 as "unrouteable address" or "local delivery error" are given.
2644
d20976dc
PH
2645PH/43 $value is now also set for the "else" part of a ${run expansion.
2646
f656d135
PH
2647PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2648 being worked on, but at least Exim now implements the latest version to
2649 play with."
2650
2e2a30b4
PH
2651PH/45 In a pipe transport, although a timeout while waiting for the pipe
2652 process to complete was treated as a delivery failure, a timeout while
2653 writing the message to the pipe was logged, but erroneously treated as a
2654 successful delivery. Such timeouts include transport filter timeouts. For
2655 consistency with the overall process timeout, these timeouts are now
2656 treated as errors, giving rise to delivery failures by default. However,
2657 there is now a new Boolean option for the pipe transport called
2658 timeout_defer, which, if set TRUE, converts the failures into defers for
2659 both kinds of timeout. A transport filter timeout is now identified in
2660 the log output.
2661
9176e9f0
PH
2662PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2663 systems where "make" and "gmake" are different, calling "gmake" at top
2664 level broke things. I've arranged for the value of $(MAKE) to be passed
2665 from the Makefile to this script so that it can call the same version of
2666 "make".
2667
7982096b 2668
bbe902f0
PH
2669A note about Exim versions 4.44 and 4.50
2670----------------------------------------
2671
2672Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2673changes of various kinds. As a consequence, a big documentation update was
2674needed. This delayed the release for rather longer than seemed good, especially
2675in the light of a couple of (minor) security issues. Therefore, the changes
2676that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2677release. So 4.44 and 4.50 are in effect two different branches that both start
2678from 4.43.
2679
2680I have left the 4.50 change log unchanged; it contains all the changes since
26814.43. The change log for 4.44 is below; many of its items are identical to
2682those for 4.50. This seems to be the most sensible way to preserve the
2683historical information.
2684
2685
f7b63901 2686Exim version 4.50
495ae4b0
PH
2687-----------------
2688
5fe762f6
PH
2689 1. Minor wording change to the doc/README.SIEVE file.
2690
139059f6 2691 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2692 computation of the current number of files was incorrect.
495ae4b0 2693
7086e875
PH
2694 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2695 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2696 place.
2697
35af9f61
PH
2698 4. Give more explanation in the error message when the command for a transport
2699 filter fails to execute.
2700
b668c215
PH
2701 5. There are several places where Exim runs a non-Exim command in a
2702 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2703 was being done only for the command run by the queryprogram router. It is
2704 now done for all such subprocesses. The other cases are: ${run, transport
2705 filters, and the commands run by the lmtp and pipe transports.
2706
a494b1e1
PH
2707 6. Added CONFIGURE_GROUP build-time option.
2708
2709 7. Some older OS have a limit of 256 on the maximum number of file
2710 descriptors. Exim was using setrlimit() to set 1000 as a large value
2711 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2712 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2713
c5fcb476
PH
2714 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2715 was an oversight, and furthermore, ever since the addition of extra
2716 controls (e.g. 4.43/32), the checks on when to allow different forms of
2717 "control" were broken. There should now be diagnostics for all cases when a
2718 control that does not make sense is encountered.
2719
69358f02
PH
2720 9. Added the /retain_sender option to "control=submission".
2721
5be20824
PH
272210. $recipients is now available in the predata ACL (oversight).
2723
eb2c0248
PH
272411. Tidy the search cache before the fork to do a delivery from a message
2725 received from the command line. Otherwise the child will trigger a lookup
2726 failure and thereby defer the delivery if it tries to use (for example) a
2727 cached ldap connection that the parent has called unbind on.
2728
2a3eea10
PH
272912. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2730 of $address_data from the recipient verification was clobbered by the
2731 sender verification.
2732
273313. The value of address_data from a sender verification is now available in
2734 $sender_address_data in subsequent conditions in the ACL statement.
2735
23c7ff99
PH
273614. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2737
4deaf07d
PH
273815. Added a new option "connect=<time>" to callout options, to set a different
2739 connection timeout.
2740
926e1192
PH
274116. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2742 was its contents. (It was OK if the option was not defined at all.)
2743
650edc6f
PH
274417. A "Completed" log line is now written for messages that are removed from
2745 the spool by the -Mrm option.
2746
2c7db3f5
PH
274718. New variables $sender_verify_failure and $recipient_verify_failure contain
2748 information about exactly what failed.
2749
3d235903
PH
275019. Added -dd to debug only the daemon process.
2751
7c7ad977
PH
275220. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2753 handles timeouts, both on the server side and network timeouts. Renamed the
2754 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2755
981756db
PH
275621. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2757 It is now set to "smtps".
2758
d4eb88df
PH
275922. $host_address is now set to the target address during the checking of
2760 ignore_target_hosts.
2761
276223. When checking ignore_target_hosts for an ipliteral router, no host name was
2763 being passed; this would have caused $sender_host_name to have been used if
2764 matching the list had actually called for a host name (not very likely,
2765 since this list is usually IP addresses). A host name is now passed as
2766 "[x.x.x.x]".
2767
7d468ab8
PH
276824. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2769 code that specifies a non-restarting handler (typically sigaction() in
2770 modern systems) in an attempt to fix a rare and obscure crash bug.
2771
277225. Narrowed the window for a race in the daemon that could cause it to ignore
2773 SIGCHLD signals. This is not a major problem, because they are used only to
2774 wake it up if nothing else does.
2775
62c0818f
PH
277626. A malformed maildirsize file could cause Exim to calculate negative values
2777 for the mailbox size or file count. Odd effects could occur as a result.
2778 The maildirsize information is now recalculated if the size or filecount
2779 end up negative.
2780
26034054
PH
278127. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2782 support for a long time. Removed HAVE_SYS_VFS_H.
2783
af66f652
PH
278428. Installed the latest version of exipick from John Jetmore.
2785
90af77f4
PH
278629. In an address list, if the pattern was not a regular expression, an empty
2787 subject address (from a bounce message) matched only if the pattern was an
2788 empty string. Non-empty patterns were not even tested. This was the wrong
2789 because it is perfectly reasonable to use an empty address as part of a
2790 database query. An empty address is now tested by patterns that are
2791 lookups. However, all the other forms of pattern expect the subject to
2792 contain a local part and a domain, and therefore, for them, an empty
2793 address still always fails if the pattern is not itself empty.
2794
d8ef3577
PH
279530. Exim went into a mad DNS loop when attempting to do a callout where the
2796 host was specified on an smtp transport, and looking it up yielded more
2797 than one IP address.
2798
5cb8cbc6
PH
279931. Re-factored the code for checking spool and log partition space into a
2800 function that finds that data and another that does the check. The former
2801 is then used to implement four new variables: $spool_space, $log_space,
2802 $spool_inodes, and $log_inodes.
2803
14702f5b
PH
280432. The RFC2047 encoding function was originally intended for short strings
2805 such as real names; it was not keeping to the 75-character limit for
2806 encoded words that the RFC imposes. It now respects the limit, and
2807 generates multiple encoded words if necessary. To be on the safe side, I
2808 have increased the buffer size for the ${rfc2047: expansion operator from
2809 1024 to 2048 bytes.
2810
063b1e99
PH
281133. It is now permitted to omit both strings after an "if" condition; if the
2812 condition is true, the result is "true". As before, when the second string
2813 is omitted, a false condition yields an empty string. This makes it less
2814 cumbersome to write custom ACL and router conditions.
2815
652e1b65
PH
281634. Failure to deliver a bounce message always caused it to be frozen, even if
2817 there was an errors_to setting on the router. The errors_to setting is now
2818 respected.
2819
6f0c9a4f
PH
282035. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2821 canonical form (fully expanded) before being placed in
2822 $sender_host_address.
2823
33397d19
PH
282436. The table in the code that translates DNS record types into text (T_A to
2825 "A" for instance) was missing entries for NS and CNAME. It is just possible
2826 that this could have caused confusion if both these types were looked up
2827 for the same domain, because the text type is used as part of Exim's
2828 per-process caching. But the chance of anyone hitting this buglet seems
2829 very small.
2830
7bb56e1f
PH
283137. The dnsdb lookup has been extended in a number of ways.
2832
2833 (1) There is a new type, "zns", which walks up the domain tree until it
2834 finds some nameserver records. It should be used with care.
2835
ea3bc19b
PH
2836 (2) There is a new type, "mxh", which is like "mx" except that it returns
2837 just the host names, not the priorities.
2838
2839 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2840 looked up. The behaviour when one of the lookups defers can be
2841 controlled by a keyword.
7bb56e1f 2842
ea3bc19b 2843 (4) It is now possible to specify the separator character for use when
7bb56e1f 2844 multiple records are returned.
33397d19 2845
0bcb2a0e
PH
284638. The dnslists ACL condition has been extended: it is now possible to supply
2847 a list of IP addresses and/or domains to be looked up in a particular DNS
2848 domain.
2849
2ac0e484
PH
285039. Added log_selector=+queue_time_overall.
2851
4e1fde53
PH
285240. When running the queue in the test harness, wait just a tad after forking a
2853 delivery process, to get repeatability of debugging output.
2854
de365ded
PH
285541. Include certificate and key file names in error message when GnuTLS fails
2856 to set them up, because the GnuTLS error message doesn't include the name
2857 of the failing file when there is a problem reading it.
2858
f05da2e8
PH
285942. Allow both -bf and -bF in the same test run.
2860
d6453af2
PH
286143. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2862
f7b63901
PH
286344. The "Exiscan patch" is now merged into the mainline Exim source.
2864
286545. Sometimes the final signoff response after QUIT could fail to get
2866 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2867 < 0 before doing a fflush(). This bug looks as though it goes back to the
2868 introduction of TLS in release 3.20, but "sometimes" must have been rare
2869 because the tests only now provoked it.
2870
a444213a
PH
287146. Reset the locale to "C" after calling embedded Perl, in case it was changed
2872 (this can affect the format of dates).
2873
0ec020ea
PH
287447. exim_tidydb, when checking for the continued existence of a message for
2875 which it has found a message-specific retry record, was not finding
2876 messages that were in split spool directories. Consequently, it was
2877 deleting retry records that should have stayed in existence.
2878
b1206957
PH
287948. Steve fixed some bugs in eximstats.
2880
288149. The SPA authentication driver was not abandoning authentication and moving
2882 on to the next authenticator when an expansion was forced to fail,
2883 contradicting the general specification for all authenticators. Instead it
2884 was generating a temporary error. It now behaves as specified.
2885
26dd5a95
PH
288650. The default ordering of permitted cipher suites for GnuTLS was pessimal
2887 (the order specifies the preference for clients). The order is now AES256,
2888 AES128, 3DES, ARCFOUR128.
2889
343b2385
PH
289051. Small patch to Sieve code - explicitly set From: when generating an
2891 autoreply.
2892
1c5466b9
PH
289352. Exim crashed if a remote delivery caused a very long error message to be
2894 recorded - for instance if somebody sent an entire SpamAssassin report back
2895 as a large number of 550 error lines. This bug was coincidentally fixed by
2896 increasing the size of one of Exim's internal buffers (big_buffer) that
2897 happened as part of the Exiscan merge. However, to be on the safe side, I
2898 have made the code more robust (and fixed the comments that describe what
2899 is going on).
2900
55ee9ee3
PH
290153. Now that there can be additional text after "Completed" in log lines (if
2902 the queue_time_overall log selector is set), a one-byte patch to exigrep
2903 was needed to allow it to recognize "Completed" as not the last thing in
2904 the line.
2905
d38f8232
PH
290654. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2907 patch that reportedly fixes this has been added. I am not expert enough to
2908 create a test for it. This is what the patch creator wrote:
2909
2910 "I found a little strange behaviour of ldap code when working with
2911 Windows 2003 AD Domain, where users was placed in more than one
2912 Organization Units. When I tried to give exim partial DN, the exit code
2913 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2914 But simultaneously result of request was absolutely normal ldap result,
2915 so I produce this patch..."
2916
3295e65b
PH
2917 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2918 REFERENCE, so I have modified the code to exclude the patch when that macro
2919 is not defined.
2920
7102e136
PH
292155. Some experimental protocols are using DNS PTR records for new purposes. The
2922 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2923 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2924 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2925 CAN-2005-0021
7102e136 2926
3ca0ba97
PH
292756. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2928
c2bcbe20
PH
292957. Double the size of the debug message buffer (to 2048) so that more of very
2930 long debug lines gets shown.
2931
18ce445d
PH
293258. The exicyclog utility now does better if the number of log files to keep
2933 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2934
1f5b4c3d
PH
293559. Two changes related to the smtp_active_hostname option:
2936
2937 (1) $smtp_active_hostname is now available as a variable.
2938 (2) The default for smtp_banner uses $smtp_active_hostname instead
2939 of $primary_hostname.
2940
b975ba52
PH
294160. The host_aton() function is supposed to be passed a string that is known
2942 to be a valid IP address. However, in the case of IPv6 addresses, it was
2943 not checking this. This is a hostage to fortune. Exim now panics and dies
2944 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2945 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2946 components; fortuitously, this particular loophole had already been fixed
2947 by change 4.50/55 above.
2948
2949 If there are any other similar loopholes, the new check in host_aton()
2950 itself should stop them being exploited. The report I received stated that
2951 data on the command line could provoke the exploit when Exim was running as
2952 exim, but did not say which command line option was involved. All I could
2953 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2954 running as the user.
ea3a6f44 2955 CAN-2005-0021
85b87bc2
PH
2956
295761. There was a buffer overflow vulnerability in the SPA authentication code
2958 (which came originally from the Samba project). I have added a test to the
2959 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2960 CAN-2005-0022
b975ba52 2961
17ffcae7
PH
296262. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2963 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2964
d95f9fdb
PH
296563. The daemon start-up calls getloadavg() while still root for those OS that
2966 need the first call to be done as root, but it missed one case: when
2967 deliver_queue_load_max is set with deliver_drop_privilege. This is
2968 necessary for the benefit of the queue runner, because there is no re-exec
2969 when deliver_drop_privilege is set.
2970
86b8287f
PH
297164. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2972 This has been fixed.
2973
60dc5e56
PH
297465. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2975 was in use, was not putting the data itself into the right store pool;
2976 consequently, it could be overwritten for a subsequent message in the same
2977 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2978 the caching.)
2979
533244af
PH
298066. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2981
a5a28604
PH
298267. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2983 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2984 the function were treating the return as a boolean value, which happened to
2985 work because 0=false and not-0=true, but is not correct code.
2986
7e634d24
PH
298768. The host_aton() function was not handling scoped IPv6 addresses (those
2988 with, for example, "%eth0" on the end) correctly.
2989
3e11c26b
PH
299069. Fixed some compiler warnings in acl.c for the bitmaps specified with
2991 negated items (that is, ~something) in unsigned ints. Some compilers
2992 apparently mutter when there is no cast.
2993
6729cf78
PH
299470. If an address verification called from an ACL failed, and did not produce a
2995 user-specific message (i.e. there was only a "system" message), nothing was
2996 put in $acl_verify_message. In this situation, it now puts the system
2997 message there.
2998
00f00ca5
PH
299971. Change 4.23/11 added synchronization checking at the start of an SMTP
3000 session; change 4.31/43 added the unwanted input to the log line - except
3001 that it did not do this in the start of session case. It now does.
3002
c9bdd01c
PH
300372. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3004 This is wrong and can cause the other end to generate a synchronization
3005 error if it is another Exim or anything else that does the synchronization
3006 check. A QUIT command is no longer sent after a timeout.
3007
d43194df
PH
300873. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3009 during host lookups.
3010
fe5b5d0b
PH
301174. The defer_ok option of callout verification was not working if it was used
3012 when verifying addresses in header lines, that is, for this case:
3013
3014 verify = header_sender/callout=defer_ok
3015
76a2d7ba
PH
301675. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3017 those file descriptors could be used for SMTP connections. If anything
3018 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3019 could be sent to the SMTP client, causing chaos. The daemon now opens
3020 stdin, stdout, and stderr to /dev/null when it puts itself into the
3021 background.
3022
302376. Arrange for output from Perl's "warn" command to be written to Exim's main
3024 log by default. The user can override this with suitable Perl magic.
3025
04f7d5b9
PH
302677. The use of log_message on a "discard" ACL verb, which is supposed to add to
3027 the log message when discard triggers, was not working for the DATA ACL or
3028 for the non-SMTP ACL.
3029
bc60667e
PH
303078. Error message wording change in sieve.c.
3031
bb6e88ff
PH
303279. If smtp_accept_max_per_host was set, the number of connections could be
3033 restricted to fewer than expected, because the daemon was trying to set up
3034 a new connection before checking whether the processes handling previous
3035 connections had finished. The check for completed processes is now done
3036 earlier. On busy systems, this bug wouldn't be noticed because something
3037 else would have woken the daemon, and it would have reaped the completed
3038 process earlier.
3039
1e70f85b
PH
304080. If a message was submitted locally by a user whose login name contained one
3041 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3042 It caused a spool format error. I have fixed the spool reading code. A
3043 related problem was that the "from" clause in the Received: line became
3044 illegal because of the space(s). It is now covered by ${quote_local_part.
3045
304681. Included the latest eximstats from Steve (adds average sizes to HTML Top
3047 tables).
3048
4e01f9d6
PH
304982. Updated OS/Makefile-AIX as per message from Mike Meredith.
3050
1ee1cef2
PH
305183. Patch from Sieve maintainer to fix unterminated string problem in
3052 "vacation" handling.
3053
6e2b4ccc
PH
305484. Some minor changes to the Linux configuration files to help with other
3055 OS variants using glibc.
3056
8e669ac1
PH
305785. One more patch for Sieve to update vacation handling to latest spec.
3058
495ae4b0 3059
bbe902f0
PH
3060----------------------------------------------------
3061See the note above about the 4.44 and 4.50 releases.
3062----------------------------------------------------
3063
3064
3065Exim version 4.44
3066-----------------
3067
3068 1. Change 4.43/35 introduced a bug that caused file counts to be
3069 incorrectly computed when quota_filecount was set in an appendfile
3070 transport
3071
3072 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3073 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3074 place.
3075
3076 3. Give more explanation in the error message when the command for a transport
3077 filter fails to execute.
3078
3079 4. There are several places where Exim runs a non-Exim command in a
3080 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3081 was being done only for the command run by the queryprogram router. It is
3082 now done for all such subprocesses. The other cases are: ${run, transport
3083 filters, and the commands run by the lmtp and pipe transports.
3084
3085 5. Some older OS have a limit of 256 on the maximum number of file
3086 descriptors. Exim was using setrlimit() to set 1000 as a large value
3087 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3088 systems. I've change it so that if it can't get 1000, it tries for 256.
3089
3090 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3091 was an oversight, and furthermore, ever since the addition of extra
3092 controls (e.g. 4.43/32), the checks on when to allow different forms of
3093 "control" were broken. There should now be diagnostics for all cases when a
3094 control that does not make sense is encountered.
3095
3096 7. $recipients is now available in the predata ACL (oversight).
3097
3098 8. Tidy the search cache before the fork to do a delivery from a message
3099 received from the command line. Otherwise the child will trigger a lookup
3100 failure and thereby defer the delivery if it tries to use (for example) a
3101 cached ldap connection that the parent has called unbind on.
3102
3103 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3104 of $address_data from the recipient verification was clobbered by the
3105 sender verification.
3106
310710. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3108 was its contents. (It was OK if the option was not defined at all.)
3109
311011. A "Completed" log line is now written for messages that are removed from
3111 the spool by the -Mrm option.
3112
311312. $host_address is now set to the target address during the checking of
3114 ignore_target_hosts.
3115
311613. When checking ignore_target_hosts for an ipliteral router, no host name was
3117 being passed; this would have caused $sender_host_name to have been used if
3118 matching the list had actually called for a host name (not very likely,
3119 since this list is usually IP addresses). A host name is now passed as
3120 "[x.x.x.x]".
3121
312214. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3123 code that specifies a non-restarting handler (typically sigaction() in
3124 modern systems) in an attempt to fix a rare and obscure crash bug.
3125
312615. Narrowed the window for a race in the daemon that could cause it to ignore
3127 SIGCHLD signals. This is not a major problem, because they are used only to
3128 wake it up if nothing else does.
3129
313016. A malformed maildirsize file could cause Exim to calculate negative values
3131 for the mailbox size or file count. Odd effects could occur as a result.
3132 The maildirsize information is now recalculated if the size or filecount
3133 end up negative.
3134
313517. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3136 support for a long time. Removed HAVE_SYS_VFS_H.
3137
ea3a6f44 313818. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3139
314019. Allow an empty sender to be matched against a lookup in an address list.
3141 Previously the only cases considered were a regular expression, or an
3142 empty pattern.
3143
314420. Exim went into a mad DNS lookup loop when doing a callout where the
3145 host was specified on the transport, if the DNS lookup yielded more than
3146 one IP address.
3147
ea3a6f44
NM
314821. The RFC2047 encoding function was originally intended for short strings
3149 such as real names; it was not keeping to the 75-character limit for
3150 encoded words that the RFC imposes. It now respects the limit, and
3151 generates multiple encoded words if necessary. To be on the safe side, I
3152 have increased the buffer size for the ${rfc2047: expansion operator from
3153 1024 to 2048 bytes.
bbe902f0 3154
ea3a6f44
NM
315522. Failure to deliver a bounce message always caused it to be frozen, even if
3156 there was an errors_to setting on the router. The errors_to setting is now
3157 respected.
bbe902f0
PH
3158
315923. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3160 canonical form (fully expanded) before being placed in
3161 $sender_host_address.
3162
316324. Updated eximstats to version 1.33
3164
ea3a6f44
NM
316525. Include certificate and key file names in error message when GnuTLS fails
3166 to set them up, because the GnuTLS error message doesn't include the name
3167 of the failing file when there is a problem reading it.
bbe902f0
PH
3168
316926. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3170 As per change 25.
bbe902f0 3171
ea3a6f44
NM
317227. Reset the locale to "C" after calling embedded Perl, in case it was changed
3173 (this can affect the format of dates).
bbe902f0 3174
ea3a6f44
NM
317528. exim_tidydb, when checking for the continued existence of a message for
3176 which it has found a message-specific retry record, was not finding
3177 messages that were in split spool directories. Consequently, it was
3178 deleting retry records that should have stayed in existence.
bbe902f0
PH
3179
318029. eximstats updated to version 1.35
3181 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3182 1.35 - bugfix such that pie charts by volume are generated correctly
3183
ea3a6f44
NM
318430. The SPA authentication driver was not abandoning authentication and moving
3185 on to the next authenticator when an expansion was forced to fail,
3186 contradicting the general specification for all authenticators. Instead it
3187 was generating a temporary error. It now behaves as specified.
bbe902f0 3188
ea3a6f44
NM
318931. The default ordering of permitted cipher suites for GnuTLS was pessimal
3190 (the order specifies the preference for clients). The order is now AES256,
3191 AES128, 3DES, ARCFOUR128.
bbe902f0 3192
ea3a6f44
NM
319331. Small patch to Sieve code - explicitly set From: when generating an
3194 autoreply.
bbe902f0 3195
ea3a6f44
NM
319632. Exim crashed if a remote delivery caused a very long error message to be
3197 recorded - for instance if somebody sent an entire SpamAssassin report back
3198 as a large number of 550 error lines. This bug was coincidentally fixed by
3199 increasing the size of one of Exim's internal buffers (big_buffer) that
3200 happened as part of the Exiscan merge. However, to be on the safe side, I
3201 have made the code more robust (and fixed the comments that describe what
3202 is going on).
bbe902f0 3203
ea3a6f44
NM
320433. Some experimental protocols are using DNS PTR records for new purposes. The
3205 keys for these records are domain names, not reversed IP addresses. The
3206 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3207 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3208 CAN-2005-0021
3209
ea3a6f44
NM
321034. The host_aton() function is supposed to be passed a string that is known
3211 to be a valid IP address. However, in the case of IPv6 addresses, it was
3212 not checking this. This is a hostage to fortune. Exim now panics and dies
3213 if the condition is not met. A case was found where this could be provoked
3214 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3215 components; fortuitously, this particular loophole had already been fixed
3216 by change 4.50/55 or 4.44/33 above.
3217
3218 If there are any other similar loopholes, the new check in host_aton()
3219 itself should stop them being exploited. The report I received stated that
3220 data on the command line could provoke the exploit when Exim was running as
3221 exim, but did not say which command line option was involved. All I could
3222 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3223 running as the user.
bbe902f0
PH
3224 CAN-2005-0021
3225
ea3a6f44
NM
322635. There was a buffer overflow vulnerability in the SPA authentication code
3227 (which came originally from the Samba project). I have added a test to the
3228 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3229 CAN-2005-0022
3230
ea3a6f44
NM
323136. The daemon start-up calls getloadavg() while still root for those OS that
3232 need the first call to be done as root, but it missed one case: when
3233 deliver_queue_load_max is set with deliver_drop_privilege. This is
3234 necessary for the benefit of the queue runner, because there is no re-exec
3235 when deliver_drop_privilege is set.
bbe902f0 3236
ea3a6f44
NM
323737. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3238 was in use, was not putting the data itself into the right store pool;
3239 consequently, it could be overwritten for a subsequent message in the same
3240 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3241 the caching.)
bbe902f0 3242
ea3a6f44
NM
324338. Sometimes the final signoff response after QUIT could fail to get
3244 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3245 < 0 before doing a fflush(). This bug looks as though it goes back to the
3246 introduction of TLS in release 3.20, but "sometimes" must have been rare
3247 because the tests only now provoked it.
bbe902f0
PH
3248
3249
495ae4b0
PH
3250Exim version 4.43
3251-----------------
3252
3253 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3254 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3255 Now it returns an integer. A number of calls were still expecting a T/F
3256 return. Fortuitously, in all cases, the tests worked in OK situations,
3257 which is the norm. However, things would have gone wrong on any write
3258 failures on the smtp file descriptor. This function is used when sending
3259 messages over SMTP and also when doing verify callouts.
3260
3261 2. When Exim is called to do synchronous delivery of a locally submitted
3262 message (the -odf or -odi options), it no longer closes stderr before doing
3263 the delivery.
3264
3265 3. Implemented the mua_wrapper option.
3266
3267 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3268
3269 5. Implemented the functions header_remove(), header_testname(),
3270 header_add_at_position(), and receive_remove_recipient(), and exported them
3271 to local_scan().
3272
3273 6. If an ACL "warn" statement specified the addition of headers, Exim already
3274 inserted X-ACL-Warn: at the start if there was no header name. However, it
3275 was not making this test for the second and subsequent header lines if
3276 there were newlines in the string. This meant that an invalid header could
3277 be inserted if Exim was badly configured.
3278
3279 7. Allow an ACL "warn" statement to add header lines at the start or after all
3280 the Received: headers, as well as at the end.
3281
3282 8. Added the rcpt_4xx retry error code.
3283
3284 9. Added postmaster_mailfrom=xxx to callout verification option.
3285
328610. Added mailfrom=xxxx to the callout verification option, for verify=
3287 header_sender only.
3288
328911. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3290 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3291
329212. Inserted some casts to stop certain compilers warning when using pointer
3293 differences as field lengths or precisions in printf-type calls (mostly
3294 affecting debugging statements).
3295
329613. Added optional readline() support for -be (dynamically loaded).
3297
329814. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3299 same clock tick as a message's arrival, so that its received time was the
3300 same as the "first fail" time on the retry record, and that message
3301 remained on the queue past the ultimate address timeout, every queue runner
3302 would try a delivery (because it was past the ultimate address timeout) but
3303 after another failure, the ultimate address timeout, which should have then
3304 bounced the address, did not kick in. This was a "< instead of <=" error;
3305 in most cases the first failure would have been in the next clock tick
3306 after the received time, and all would be well.
3307
330815. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3309 being recognized when the domain list was tested by the match_domain
3310 condition in an expansion string.
3311
331216. Added the ${str2b64: operator.
3313
331417. Exim was always calling setrlimit() to set a large limit for the number of
3315 processes, without checking whether the existing limit was already
3316 adequate. (It did check for the limit on file descriptors.) Furthermore,
3317 errors from getrlimit() and setrlimit() were being ignored. Now they are
3318 logged to the main and panic logs, but Exim does carry on, to try to do its
3319 job under whatever limits there are.
3320
332118. Imported PCRE 5.0.
3322
332319. Trivial typo in log message " temporarily refused connection" (the leading
3324 space).
3325
332620. If the log selector return_path_on_delivery was set and an address was
3327 redirected to /dev/null, the delivery process crashed because it assumed
3328 that a return path would always be set for a "successful" delivery. In this
3329 case, the whole delivery is bypassed as an optimization, and therefore no
3330 return path is set.
3331
333221. Internal re-arrangement: the function for sending a challenge and reading
3333 a response while authentication was assuming a zero-terminated challenge
3334 string. It's now changed to take a pointer and a length, to allow for
3335 binary data in such strings.
3336
333722. Added the cyrus_sasl authenticator (code supplied by MBM).
3338
333923. Exim was not respecting finduser_retries when seeking the login of the
3340 uid under which it was called; it was always trying 10 times. (The default
3341 setting of finduser_retries is zero.) Also, it was sleeping after the final
3342 failure, which is pointless.
3343
334424. Implemented tls_on_connect_ports.
3345
334625. Implemented acl_smtp_predata.
3347
334826. If the domain in control=submission is set empty, Exim assumes that the
3349 authenticated id is a complete email address when it generates From: or
3350 Sender: header lines.
3351
335227. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3353 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3354 chown and chgrp in /bin and hostname in /usr/bin.
3355
335628. Exim was keeping the "process log" file open after each use, just as it
3357 does for the main log. This opens the possibility of it remaining open for
3358 long periods when the USR1 signal hits a daemon. Occasional processlog
3359 errors were reported, that could have been caused by this. Anyway, it seems
3360 much more sensible not to leave this file open at all, so that is what now
3361 happens.
3362
336329. The long-running daemon process does not normally write to the log once it
3364 has entered its main loop, and it closes the log before doing so. This is
3365 so that log files can straightforwardly be renamed and moved. However,
3366 there are a couple of unusual error situations where the daemon does write
3367 log entries, and I had neglected to close the log afterwards.
3368
336930. The text of an SMTP error response that was received during a remote
3370 delivery was being truncated at 512 bytes. This is too short for some of
3371 the long messages that one sometimes sees. I've increased the limit to
3372 1024.
3373
337431. It is now possible to make retry rules that apply only when a message has a
3375 specific sender, in particular, an empty sender.
3376
337732. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3378 it possible to be selective about when SMTP synchronization is enforced.
3379
338033. Added "control = caseful_local_part" and "control = "caselower_local_part".
3381
338232. Implemented hosts_connection_nolog.
3383
338433. Added an ACL for QUIT.
3385
338634. Setting "delay_warning=" to disable warnings was not working; it gave a
3387 syntax error.
3388
338935. Added mailbox_size and mailbox_filecount to appendfile.
3390
339136. Added control = no_multiline_responses to ACLs.
3392
339337. There was a bug in the logic of the code that waits for the clock to tick
3394 in the case where the clock went backwards by a substantial amount such
3395 that the microsecond fraction of "now" was more than the microsecond
3396 fraction of "then" (but the whole seconds number was less).
3397
339838. Added support for the libradius Radius client library this is found on
3399 FreeBSD (previously only the radiusclient library was supported).
3400
3401
3402Exim version 4.42
3403-----------------
3404
3405 1. When certain lookups returned multiple values in the form name=value, the
3406 quoting of the values was not always being done properly. Specifically:
3407 (a) If the value started with a double quote, but contained no whitespace,
3408 it was not quoted.
3409 (b) If the value contained whitespace other than a space character (i.e.
3410 tabs or newlines or carriage returns) it was not quoted.
3411 This fix has been applied to the mysql and pgsql lookups by writing a
3412 separate quoting function and calling it from the lookup code. The fix
3413 should probably also be applied to nisplus, ibase and oracle lookups, but
3414 since I cannot test any of those, I have not disturbed their existing code.
3415
3416 2. A hit in the callout cache for a specific address caused a log line with no
3417 reason for rejecting RCPT. Now it says "Previous (cached) callout
3418 verification failure".
3419
3420 3. There was an off-by-one bug in the queryprogram router. An over-long
3421 return line was truncated at 256 instead of 255 characters, thereby
3422 overflowing its buffer with the terminating zero. As well as fixing this, I
3423 have increased the buffer size to 1024 (and made a note to document this).
3424
3425 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3426 when Exim is waiting for an SMTP response from a remote server, Exim
3427 restarts its select() call on the socket, thereby resetting its timeout.
3428 This is not a problem when such interrupts are rare. Somebody set up a cron
3429 job to run exiwhat every 2 minutes, which is less than the normal select()
3430 timeout (5 or 10 minutes). This meant that the select() timeout never
3431 kicked in because it was always reset. I have fixed this by comparing the
3432 time when an interrupt arrives with the time at the start of the first call
3433 to select(). If more time than the timeout has elapsed, the interrupt is