Improved spamd server selection.
[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
332f5cf3
PP
63PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
64 Patch from Mark Zealey.
65
29cfeb94
PP
66PP/12 Bugzilla 1056: Improved spamd server selection.
67 Patch from Mark Zealey.
68
aa097c4c 69
8c07b69f
TF
70Exim version 4.74
71-----------------
72
73TF/01 Failure to get a lock on a hints database can have serious
74 consequences so log it to the panic log.
75
c0ea85ab
TF
76TF/02 Log LMTP confirmation messages in the same way as SMTP,
77 controlled using the smtp_confirmation log selector.
78
0761d44e
TF
79TF/03 Include the error message when we fail to unlink a spool file.
80
0a349494
PP
81DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
82 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
83 for maintaining out-of-tree patches for some time.
84
85PP/01 Bugzilla 139: Documentation and portability issues.
86 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
87 Handle per-OS dynamic-module compilation flags.
88
fea24b2e
PP
89PP/02 Let /dev/null have normal permissions.
90 The 4.73 fixes were a little too stringent and complained about the
91 permissions on /dev/null. Exempt it from some checks.
92 Reported by Andreas M. Kirchwitz.
93
6545de78
PP
94PP/03 Report version information for many libraries, including
95 Exim version information for dynamically loaded libraries. Created
96 version.h, now support a version extension string for distributors
97 who patch heavily. Dynamic module ABI change.
98
1670ef10
PP
99PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
100 privilege escalation vulnerability whereby the Exim run-time user
101 can cause root to append content of the attacker's choosing to
102 arbitrary files.
103
c0886197
PP
104PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
105 (Wolfgang Breyha)
106
b7487bce
PP
107PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
108 If dropping privileges for untrusted macros, we disabled normal logging
109 on the basis that it would fail; for the Exim run-time user, this is not
110 the case, and it resulted in successful deliveries going unlogged.
111 Fixed. Reported by Andreas Metzler.
112
8c07b69f 113
97fd1e48 114Exim version 4.73
ed7f7860 115-----------------
97fd1e48
PP
116
117PP/01 Date: & Message-Id: revert to normally being appended to a message,
118 only prepend for the Resent-* case. Fixes regression introduced in
119 Exim 4.70 by NM/22 for Bugzilla 607.
120
6901c596
PP
121PP/02 Include check_rfc2047_length in configure.default because we're seeing
122 increasing numbers of administrators be bitten by this.
123
a8c8d6b5
JJ
124JJ/01 Added DISABLE_DKIM and comment to src/EDITME
125
77bb000f
PP
126PP/03 Bugzilla 994: added openssl_options main configuration option.
127
a29e5231
PP
128PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
129
ec5a0394 130PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 131
55c75993
PP
132PP/06 Adjust NTLM authentication to handle SASL Initial Response.
133
453a6645 134PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
135 without a peer certificate, leading to a segfault because of an
136 assumption that peers always have certificates. Be a little more
453a6645
PP
137 paranoid. Problem reported by Martin Tscholak.
138
8544e77a
PP
139PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
140 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
141 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
142 CL also introduces -bmalware, various -d+acl logging additions and
143 more caution in buffer sizes.
8544e77a 144
83e029d5
PP
145PP/09 Implemented reverse_ip expansion operator.
146
ed7f7860
PP
147PP/10 Bugzilla 937: provide a "debug" ACL control.
148
7d9f747b
PP
149PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
150
4b2241d2
PP
151PP/12 Bugzilla 973: Implement --version.
152
10385c15
PP
153PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
154
dbc4b90d
PP
155PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
156
532be449
PP
157PP/15 Bugzilla 816: support multiple condition rules on Routers.
158
6a8de854 159PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
160 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
161 ignore trailing whitespace.
6a8de854 162
5dc43717
JJ
163JJ/02 prevent non-panic DKIM error from being sent to paniclog
164
165JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
166 "exim" to be used
55c75993 167
3346ab01
PP
168PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
169 Notification from Dr Andrew Aitchison.
170
491fab4c
PP
171PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
172 ExtendedDetectionInfo response format.
173 Notification from John Horne.
174
13eb9497
PP
175PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
176 compatible.
177
178PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
179 XSL and documented dependency on system catalogs, with examples of how
180 it normally works.
181
7f36d675
DW
182DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
183 access.
184
c1d94452
DW
185DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
186 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
187 configuration file which is writeable by the Exim user or group.
188
e2f5dc15
DW
189DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
190 of configuration files to cover files specified with the -C option if
191 they are going to be used with root privileges, not just the default
192 configuration file.
193
cd25e41d
DW
194DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
195 option (effectively making it always true).
196
261dc43e
DW
197DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
198 files to be used while preserving root privileges.
199
fa32850b
DW
200DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
201 that rogue child processes cannot use them.
202
79d4bc3d
PP
203PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
204 run-time user, instead of root.
205
2cfd3221
PP
206PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
207 Exim run-time user without dropping privileges.
208
fb08281f
DW
209DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
210 result string, instead of calling string_vformat() twice with the same
211 arguments.
3346ab01 212
74935b98
DW
213DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
214 for other users. Others should always drop root privileges if they use
215 -C on the command line, even for a whitelisted configure file.
216
90b6341f
DW
217DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
218
57730b52
ML
219NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
220
66581d1e 221
465e92cf
JJ
222Exim version 4.72
223-----------------
224
453a6645
PP
225JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
226 $data_path, and $header_path variables; fixed documentation bugs and
227 typos
465e92cf 228
453a6645
PP
229JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
230 exipick to access non-standard spools, including the "frozen" queue
231 (Finput)
edae0343 232
9bd3e22c
NM
233NM/01 Bugzilla 965: Support mysql stored procedures.
234 Patch from Alain Williams
235
bb576ff7
NM
236NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
237
5a1a5845
NM
238NM/03 Bugzilla 955: Documentation fix for max_rcpts.
239 Patch from Andreas Metzler
240
981a9fad
NM
241NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
242 Patch from Kirill Miazine
243
7fc497ee
NM
244NM/05 Bugzilla 671: Added umask to procmail example.
245
1a41defa
JJ
246JJ/03 installed exipick 20100323.0, fixing doc bug
247
a466095c 248NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 249 directory. Notification and patch from Dan Rosenberg.
a466095c 250
94a6bd0b
NM
251TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
252
253TK/02 Improve log output when DKIM signing operation fails.
254
255MH/01 Treat the transport option dkim_domain as a colon separated
256 list, not as a single string, and sign the message with each element,
257 omitting multiple occurences of the same signer.
258
c1b141a8
NM
259NM/07 Null terminate DKIM strings, Null initialise DKIM variable
260 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 261
b26eacf1 262NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
263 Patch by Simon Arlott
264
179c5980 265PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 266 MBX locking. Notification from Dan Rosenberg.
179c5980 267
9bd3e22c 268
7c6d71af
NM
269Exim version 4.71
270-----------------
271
7d9f747b 272TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 273
f013fb92
NM
274NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
275
0eb8eedd
NM
276NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
277
663ee6d9
NM
278NM/03 Bugzilla 847: Enable DNSDB lookup by default.
279
177ebd9b
NM
280NM/04 Bugzilla 915: Flag broken perl installation during build.
281
7c6d71af 282
210f147e
NM
283Exim version 4.70
284-----------------
285
cdd3bb85 286TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 287 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
288
289TK/02 Write list of recipients to X-Envelope-Sender header when building
290 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 291 Hirsch).
cdd3bb85
TK
292
293TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
294 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 295 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
296
297TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
298 by Mark Daniel Reidel <mr@df.eu>.
299
210f147e
NM
300NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
301 When building exim an external PCRE library is now needed -
302 PCRE is a system library on the majority of modern systems.
303 See entry on PCRE_LIBS in EDITME file.
304
deafd5b3
NM
305NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
306 conversation. Added nologin parameter to request.
7d9f747b 307 Patch contributed by Kirill Miazine.
deafd5b3 308
089793a4
TF
309TF/01 Do not log submission mode rewrites if they do not change the address.
310
5f16ca82
TF
311TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
312
dae9d94e 313NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 314 log files in place. Contributed by Roberto Lima.
dae9d94e 315
7d9f747b 316NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 317
06864c44
TF
318TF/03 Bugzilla 615: When checking the local_parts router precondition
319 after a local_part_suffix or local_part_prefix option, Exim now
320 does not use the address's named list lookup cache, since this
321 contains cached lookups for the whole local part.
322
65a7d8c3 323NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 324 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 325
23510047 326TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 327
7d9f747b 328NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 329
7d8eec3a 330NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 331 Patch provided by Jan Srzednicki.
6c588e74 332
89dec7b6
TF
333TF/05 Leading white space used to be stripped from $spam_report which
334 wrecked the formatting. Now it is preserved.
5f28a6e8 335
a99de90c
TF
336TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
337 that they are available at delivery time.
338
e2803e40
TF
339TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
340
7199e1ee
TF
341TF/08 TLS error reporting now respects the incoming_interface and
342 incoming_port log selectors.
343
e276e04b
TF
344TF/09 Produce a more useful error message if an SMTP transport's hosts
345 setting expands to an empty string.
346
ce552449 347NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 348 Patch provided by Phil Pennock.
ce552449 349
e765a0f1 350NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 351 Patch provided by Richard Godbee.
e765a0f1 352
4f054c63 353NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 354 acl_smtp_notquit, added index entry.
4f054c63 355
7d9f747b
PP
356NM/09 Bugzilla 787: Potential buffer overflow in string_format.
357 Patch provided by Eugene Bujak.
24c929a2 358
7d9f747b
PP
359NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
360 accept(). Patch provided by Maxim Dounin.
cf73943b 361
b52bc06e 362NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 363 Patch provided by Phil Pennock.
b52bc06e 364
447de4b0
NM
365NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
366
4c69d561 367NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 368 Patch provided by Brad "anomie" Jorsch.
4c69d561 369
d5c39246 370NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 371 Patch provided by Dean Brooks.
9b989985 372
0b23848a
TK
373TK/05 Add native DKIM support (does not depend on external libraries).
374
8f3414a1 375NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 376 Patch provided by Graeme Fowler.
e2aacdfd 377
fb6f955d
NM
378NM/16 Bugzilla 851: Documentation example syntax fix.
379
380NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 381
7d9f747b
PP
382NM/18 Bugzilla 894: Fix issue with very long lines including comments in
383 lsearch.
dbb0bf41 384
7d9f747b
PP
385NM/19 Bugzilla 745: TLS version reporting.
386 Patch provided by Phil Pennock.
f3766eb5 387
7d9f747b
PP
388NM/20 Bugzilla 167: bool: condition support.
389 Patch provided by Phil Pennock.
36f12725 390
7d9f747b
PP
391NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
392 clients. Patch provided by Phil Pennock.
e6060e2c 393
7d9f747b
PP
394NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
395 Patch provided by Brad "anomie" Jorsch.
5eb690a1 396
7d9f747b
PP
397NM/23 Bugzilla 687: Fix misparses in eximstats.
398 Patch provided by Heiko Schlittermann.
d5c13d66 399
7d9f747b
PP
400NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
401 Patch provided by Heiko Schlittermann.
b2335c0b 402
7d9f747b 403NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 404 plus update to original patch.
f4cd9433 405
7d9f747b 406NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 407
7d9f747b
PP
408NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
409 Patch provided by David Brownlee.
8dc71ab3 410
7d9f747b 411NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 412
7d9f747b 413NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 414
7d9f747b 415NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 416
7d9f747b 417NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 418
17792b53 419NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 420 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 421
7d9f747b
PP
422NM/33 Bugzilla 898: Transport filter timeout fix.
423 Patch by Todd Rinaldo.
52383f8f 424
7d9f747b
PP
425NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
426 Patch by Serge Demonchaux.
5ca6d115 427
7d9f747b
PP
428NM/35 Bugzilla 39: Base64 decode bug fixes.
429 Patch by Jakob Hirsch.
baee9eee 430
7d9f747b 431NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 432
7d9f747b 433NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 434
7d9f747b 435NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 436
7d9f747b 437NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 438
deafd5b3 439
47db1125
NM
440Exim version 4.69
441-----------------
442
4b3504d0
TK
443TK/01 Add preliminary DKIM support. Currently requires a forked version of
444 ALT-N's libdkim that I have put here:
445 http://duncanthrax.net/exim-experimental/
446
447 Note to Michael Haardt: I had to rename some vars in sieve.c. They
448 were called 'true' and it seems that C99 defines that as a reserved
449 keyword to be used with 'bool' variable types. That means you could
450 not include C99-style headers which use bools without triggering
451 build errors in sieve.c.
452
81ea09ca
NM
453NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
454 as mailq or other aliases. Changed the --help handling significantly
455 to do whats expected. exim_usage() emits usage/help information.
456
f13cddcb
SC
457SC/01 Added the -bylocaldomain option to eximstats.
458
7d9f747b 459NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 460
7d9f747b 461NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 462
7d9f747b 463NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
464
465
eb4c0de6
PH
466Exim version 4.68
467-----------------
468
469PH/01 Another patch from the Sieve maintainer.
470
6a3bceb1
PH
471PH/02 When an IPv6 address is converted to a string for single-key lookup
472 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
473 dots are used instead of colons so that keys in lsearch files need not
474 contain colons. This was done some time before quoting was made available
475 in lsearch files. However, iplsearch files do require colons in IPv6 keys
476 (notated using the quote facility) so as to distinguish them from IPv4
477 keys. This meant that lookups for IP addresses in host lists did not work
478 for iplsearch lookups.
479
480 This has been fixed by arranging for IPv6 addresses to be expressed with
481 colons if the lookup type is iplsearch. This is not incompatible, because
482 previously such lookups could never work.
483
484 The situation is now rather anomolous, since one *can* have colons in
485 ordinary lsearch keys. However, making the change in all cases is
486 incompatible and would probably break a number of configurations.
487
2e30fa9d
TK
488TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
489 version.
490
0806a9c5
MH
491MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
492 conversion specification without a maximum field width, thereby enabling
493 a rogue spamd server to cause a buffer overflow. While nobody in their
494 right mind would setup Exim to query an untrusted spamd server, an
495 attacker that gains access to a server running spamd could potentially
496 exploit this vulnerability to run arbitrary code as the Exim user.
497
ae276964
TK
498TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
499 $primary_hostname instead of what libspf2 thinks the hosts name is.
500
0f2cbd1b
MH
501MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
502 a directory entry by the name of the lookup key. Previously, if a
503 symlink pointed to a non-existing file or a file in a directory that
504 Exim lacked permissions to read, a lookup for a key matching that
505 symlink would fail. Now it is enough that a matching directory entry
506 exists, symlink or not. (Bugzilla 503.)
507
2b85bce7
PH
508PH/03 The body_linecount and body_zerocount variables are now exported in the
509 local_scan API.
510
93655c46
PH
511PH/04 Added the $dnslist_matched variable.
512
6c512171
PH
513PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
514 This means they are set thereafter only if the connection becomes
515 encrypted.
516
517PH/06 Added the client_condition to authenticators so that some can be skipped
518 by clients under certain conditions.
519
aa6dc513
PH
520PH/07 The error message for a badly-placed control=no_multiline_responses left
521 "_responses" off the end of the name.
522
a96603a0
PH
523PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
524
8f240103
PH
525PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
526 (without spaces) instead of just copying the configuration text.
527
528PH/10 Added the /noupdate option to the ratelimit ACL condition.
529
d677b2f2
PH
530PH/11 Added $max_received_linelength.
531
d52120f2
PH
532PH/12 Added +ignore_defer and +include_defer to host lists.
533
64f2600a
PH
534PH/13 Installed PCRE version 7.2. This needed some changes because of the new
535 way in which PCRE > 7.0 is built.
536
8669f003
PH
537PH/14 Implemented queue_only_load_latch.
538
a4dc33a8
PH
539PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
540 MAIL command. The effect was to mangle the value on 64-bit systems.
541
d6a60c0f
PH
542PH/16 Another patch from the Sieve maintainer.
543
8f128379
PH
544PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
545
8932dffe
PH
546PH/18 If a system quota error occurred while trying to create the file for
547 a maildir delivery, the message "Mailbox is full" was not appended to the
548 bounce if the delivery eventually timed out. Change 4.67/27 below applied
549 only to a quota excession during the actual writing of the file.
d6a60c0f 550
ddea74fa 551PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
552 characters?) which causes problems in log lines. The DN values are now
553 passed through string_printing() before being added to log lines.
554
ddea74fa 555PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
556 and InterBase are left for another time.)
557
ddea74fa
PH
558PH/21 Added message_body_newlines option.
559
ce9f225c
PH
560PH/22 Guard against possible overflow in moan_check_errorcopy().
561
19897d52
PH
562PH/23 POSIX allows open() to be a macro; guard against that.
563
bc64a74d
PH
564PH/24 If the recipient of an error message contained an @ in the local part
565 (suitably quoted, of course), incorrect values were put in $domain and
566 $local_part during the evaluation of errors_copy.
567
eb4c0de6 568
b4ed4da0
PH
569Exim version 4.67
570-----------------
571
22ad45c9
MH
572MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
573 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
574 Jan Srzednicki.
575
b4ed4da0
PH
576PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
577 issue a MAIL command.
578
431b7361
PH
579PH/02 In an ACL statement such as
580
581 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
582
583 if a client was not listed at all, or was listed with a value other than
584 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
585 the condition was not true (as it should be), so access was not denied.
586 The bug was that the ! inversion was incorrectly passed on to the second
587 item. This has been fixed.
588
589PH/03 Added additional dnslists conditions == and =& which are different from
590 = and & when the dns lookup returns more than one IP address.
591
83da1223
PH
592PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
593 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
594
54fc8428
PH
595PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
596 FSYNC, which compiles an option called disable_fsync that allows for
597 bypassing fsync(). The documentation is heavily laced with warnings.
598
34c5e8dd
SC
599SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
600
bbe15da8
PH
601PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
602 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
603 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
604 including adding "make clean"; (3) Added -fPIC when compiling the test
605 dynamically loaded module, to get rid of a warning.
606
0e8a9471
MH
607MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
608 message fails, move_frozen_messages = true and ignore_bounce_errors_after
609 = 0s. The bug is otherwise harmless.
610
f0872424
PH
611PH/07 There was a bug in the dovecot authenticator such that the value of
612 $auth1 could be overwritten, and so not correctly preserved, after a
613 successful authentication. This usually meant that the value preserved by
614 the server_setid option was incorrect.
615
b01dd148
PH
616PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
617
6bf342e1
PH
618PH/09 Installed PCRE release 7.0.
619
273f34d0
PH
620PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
621 run for batched SMTP input. It is now run at the start of every message
622 in the batch. While fixing this I discovered that the process information
623 (output by running exiwhat) was not always getting set for -bs and -bS
624 input. This is fixed, and it now also says "batched" for BSMTP.
625
cf8b11a5
PH
626PH/11 Added control=no_pipelining.
627
41c7c167
PH
628PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
629 patch, slightly modified), and move the expansion of helo_data till after
630 the connection is made in the smtp transport (so it can use these
631 values).
632
9c57cbc0
PH
633PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
634
f3f065bb
PH
635PH/14 Added log_selector = +pid.
636
047bdd8c
PH
637PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
638
0ce9abe6
PH
639PH/16 Add ${if forany and ${if forall.
640
0e22dfd1
PH
641PH/17 Added dsn_from option to vary the From: line in DSNs.
642
4c590bd1
PH
643PH/18 Flush SMTP output before performing a callout, unless control =
644 no_callout_flush is set.
645
09945f1e
PH
646PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
647 was true (the default) a successful delivery failed to delete the retry
648 item, thus causing premature timeout of the address. The bug is now
649 fixed.
650
c51b8e75
PH
651PH/20 Added hosts_avoid_pipelining to the smtp transport.
652
e28326d8
PH
653PH/21 Long custom messages for fakedefer and fakereject are now split up
654 into multiline reponses in the same way that messages for "deny" and
655 other ACL rejections are.
656
75b1493f
PH
657PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
658 with slight modification.
659
7c5214ec
PH
660PH/23 Applied sieve patches from the maintainer "tracking the latest notify
661 draft, changing the syntax and factoring some duplicate code".
662
4311097e
PH
663PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
664 for deliveries of the second and subsequent messages over the same SMTP
665 connection.
666
29f89cad
PH
667PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
668 ${reduce, with only minor "tidies".
669
5e687460
SC
670SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
671
c3611384
PH
672PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
673 expansion side effects.
674
5a11a7b4
PH
675PH/27 When a message times out after an over-quota error from an Exim-imposed
676 quota, the bounce message says "mailbox is full". This message was not
677 being given when it was a system quota that was exceeded. It now should
678 be the same.
679
0e20aff9
MH
680MH/03 Made $recipients available in local_scan(). local_scan() already has
681 better access to the recipient list through recipients_list[], but
682 $recipients can be useful in postmaster-provided expansion strings.
683
ca86f471
PH
684PH/28 The $smtp_command and $smtp_command_argument variables were not correct
685 in the case of a MAIL command with additional options following the
686 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
687 were accidentally chopped off.
688
a14e5636
PH
689PH/29 SMTP synchronization checks are implemented when a command is read -
690 there is a check that no more input is waiting when there shouldn't be
691 any. However, for some commands, a delay in an ACL can mean that it is
692 some time before the response is written. In this time, more input might
693 arrive, invalidly. So now there are extra checks after an ACL has run for
694 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
695 pipelining has not been advertised.
696
ec95d1a6
PH
697PH/30 MH's patch to allow iscntrl() characters to be list separators.
698
42855d71
PH
699PH/31 Unlike :fail:, a custom message specified with :defer: was not being
700 returned in the SMTP response when smtp_return_error_details was false.
701 This has been fixed.
702
57c2c631
PH
703PH/32 Change the Dovecot authenticator to use read() and write() on the socket
704 instead of the C I/O that was originally supplied, because problems were
705 reported on Solaris.
706
58c01c94
PH
707PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
708 Exim which did not show up earlier: it was assuming that a call to
709 SSL_CTX_set_info_callback() might give an error value. In fact, there is
710 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
711 was a macro that became an assignment, so it seemed to work. This has
712 changed to a proper function call with a void return, hence the compile
713 error. Exim's code has been fixed.
714
dee5a20a
PH
715PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
716 cpus.
717
d2ee6114
PH
718PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
719
b2d5182b
PH
720PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
721
79749a79
PH
722PH/37 If a message is not accepted after it has had an id assigned (e.g.
723 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
724 "Completed" line in the log. When some messages of this type were
725 selected by exigrep, they were listed as "not completed". Others were
726 picked up by some special patterns. I have improved the selection
727 criteria to be more general.
79749a79 728
c456d9bb
PH
729PH/38 The host_find_failed option in the manualroute router can now be set
730 to "ignore", to completely ignore a host whose IP address cannot be
731 found. If all hosts are ignored, the behaviour is controlled by the new
732 host_all_ignored option.
733
cd9868ec
PH
734PH/39 In a list of hosts for manualroute, if one item (either because of multi-
735 homing or because of multiple MX records with /mx) generated more than
736 one IP address, and the following item turned out to be the local host,
737 all the secondary addresses of the first item were incorrectly removed
738 from the list, along with the local host and any following hosts (which
739 is what is supposed to happen).
740
ebeaf996
PH
741PH/40 When Exim receives a message, it writes the login name, uid, and gid of
742 whoever called Exim into the -H file. In the case of the daemon it was
743 behaving confusingly. When first started, it used values for whoever
744 started the daemon, but after a SIGHUP it used the Exim user (because it
745 calls itself on a restart). I have changed the code so that it now always
746 uses the Exim user.
747
2679d413
PH
748PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
749 message are rejected with the same error (e.g. no authentication or bad
750 sender address), and a DATA command is nevertheless sent (as can happen
751 with PIPELINING or a stupid MUA), the error message that was given to the
752 RCPT commands is included in the rejection of the DATA command. This is
753 intended to be helpful for MUAs that show only the final error to their
754 users.
755
84024b72
PH
756PH/42 Another patch from the Sieve maintainer.
757
8005d38e
SC
758SC/02 Eximstats - Differentiate between permanent and temporary rejects.
759 Eximstats - Fixed some broken HTML links and added missing column headers
760 (Jez Hancock).
761 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
762 columns for Rejects, Temp Rejects, Ham, and Spam rows.
763
3298c6c6
SC
764SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
765
a43a27c5
PH
766PH/43 Yet another patch from the Sieve maintainer.
767
58eb016e 768PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
769 the response to the final '.' that terminates a message, but only in the
770 case where the client has not sent further data following the '.'
771 (unfortunately, this is allowed). However, in many cases there won't be
772 any further data because there won't be any more messages to send. A call
773 to select() can be used: if it shows that the input is "ready", there is
774 either input waiting, or the socket has been closed. An attempt to read
775 the next input character can distinguish the two cases. Previously, Exim
58eb016e 776 would have sent an OK response which the client would never have see.
563b63fa
PH
777 This could lead to message repetition. This fix should cure that, at
778 least in a lot of common cases.
58eb016e 779
b43a74ea
PH
780PH/45 Do not advertise STARTTLS in response to HELP unless it would be
781 advertised in response to EHLO.
782
b4ed4da0 783
5dd1517f
PH
784Exim version 4.66
785-----------------
786
787PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
788 fixed by 4.65/MH/01 (is this a record?) are fixed:
789
790 (i) An empty string was always treated as zero by the numeric comparison
791 operators. This behaviour has been restored.
792
793 (ii) It is documented that the numeric comparison operators always treat
794 their arguments as decimal numbers. This was broken in that numbers
795 starting with 0 were being interpreted as octal.
796
797 While fixing these problems I realized that there was another issue that
798 hadn't been noticed. Values of message_size_limit (both the global option
799 and the transport option) were treated as octal if they started with 0.
800 The documentation was vague. These values are now always treated as
801 decimal, and I will make that clear in the documentation.
802
803
93cfa765
TK
804Exim version 4.65
805-----------------
806
807TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
808 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
809 versions. (#438)
810
d6066548
MH
811MH/01 Don't check that the operands of numeric comparison operators are
812 integers when their expansion is in "skipping" mode (fixes bug
813 introduced by 4.64-PH/07).
814
4362ff0d
PH
815PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
816 child addresses, Exim now panics and dies. Previously, because the count
817 is held in a short int, deliveries were likely to be lost. As such a
818 large number of recipients for a single message is ridiculous
819 (performance will be very, very poor), I have chosen to impose a limit
820 rather than extend the field.
821
93cfa765 822
944e9e9c
TF
823Exim version 4.64
824-----------------
aa41d2de 825
21d74bd9
TK
826TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
827 leftover -K file (the existence of which was triggered by #402).
828 While we were at it, introduced process PID as part of the -K
829 filename. This should rule out race conditions when creating
830 these files.
831
832TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
833 processing considerably. Previous code took too long for large mails,
834 triggering a timeout which in turn triggers #401.
835
836TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
837 in the DK code in transports.c. sendfile() is not really portable,
838 hence the _LINUX specificness.
944e9e9c
TF
839
840TF/01 In the add_headers option to the mail command in an Exim filter,
841 there was a bug that Exim would claim a syntax error in any
842 header after the first one which had an odd number of characters
843 in the field name.
844
2b1c6e3a
PH
845PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
846 callout verification, Exim cached a "reject" for the entire domain. This
847 is correct for most verifications, but it is not correct for a recipient
848 verification with use_sender or use_postmaster set, because in that case
849 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
850 case of MAIL FROM:<> rejection from other early rejections (e.g.
851 rejection of HELO). When verifying a recipient using a non-null MAIL
852 address, the cache is ignored if it shows MAIL FROM:<> rejection.
853 Whatever the result of the callout, the value of the domain cache is
854 left unchanged (for any other kind of callout, getting as far as trying
855 RCPT means that the domain itself is ok).
856
1f872c80
PH
857PH/02 Tidied a number of unused variable and signed/unsigned warnings that
858 gcc 4.1.1 threw up.
859
860PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
861 manifest itself as EPIPE rather than ECONNECT. When tidying away a
862 session, the daemon ignores ECONNECT errors and logs others; it now
863 ignores EPIPE as well.
864
d203e649
PH
865PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
866 (quoted-printable decoding).
867
cc2ed8f7 868PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 869 later the small subsequent patch to fix an introduced bug.
f951fd57 870
ddfcd446
PH
871PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
872
d45b1de8
PH
873PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
874
875PH/08 An error is now given if message_size_limit is specified negative.
876
38a0a95f 877PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 878 to be given (somewhat) arbitrary names.
38a0a95f 879
a2405d83
JJ
880JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
881 in 4.64-PH/09.
882
883JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
884 miscellaneous code fixes
885
6ea85e9a
PH
886PH/10 Added the log_reject_target ACL modifier to specify where to log
887 rejections.
888
26da7e20
PH
889PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
890 hostname. This is wrong, because it relates to the incoming message (and
891 probably the interface on which it is arriving) and not to the outgoing
892 callout (which could be using a different interface). This has been
893 changed to use the value of the helo_data option from the smtp transport
894 instead - this is what is used when a message is actually being sent. If
895 there is no remote transport (possible with a router that sets up host
896 addresses), $smtp_active_hostname is used.
6ea85e9a 897
14aa5a05 898PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 899 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
900 (a) The code assumed that strncpy() returns a negative number on buffer
901 overflow, which isn't the case. Replaced with Exim's string_format()
902 function.
903 (b) There were several signed/unsigned issues. I just did the minimum
904 hacking in of casts. There is scope for a larger refactoring.
905 (c) The code used strcasecmp() which is not a standard C function.
906 Replaced with Exim's strcmpic() function.
907 (d) The code set only $1; it now sets $auth1 as well.
908 (e) A simple test gave the error "authentication client didn't specify
909 service in request". It would seem that Dovecot has changed its
910 interface. Fortunately there's a specification; I followed it and
911 changed what the client sends and it appears to be working now.
912
ff75a1f7
PH
913PH/13 Added $message_headers_raw to provide the headers without RFC 2047
914 decoding.
915
e6f6568e
PH
916PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
917 address A is aliased to B and C, where B exists and C does not. Without
918 -v the output is "A verified" because verification stops after a
919 successful redirection if more than one address is generated. However,
920 with -v the child addresses are also verified. Exim was outputting "A
921 failed to verify" and then showing the successful verification for C,
922 with its parentage. It now outputs "B failed to verify", showing B's
923 parentage before showing the successful verification of C.
924
d6f6e0dc
PH
925PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
926 look up a TXT record in a specific list after matching in a combined
927 list.
928
322050c2
PH
929PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
930 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
931 they consult the DNS. I had assumed they would set it the way they
932 wanted; and indeed my experiments on Linux seem to show that in some
933 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
934 To be on the safe side, however, I have now made the interface to
935 host_find_byname() similar to host_find_bydns(), with an argument
936 containing the DNS resolver options. The host_find_byname() function now
937 sets these options at its start, just as host_find_bydns() does. The smtp
938 transport options dns_qualify_single and dns_search_parents are passed to
939 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
940 of host_find_byname() use the default settings of RES_DEFNAMES
941 (qualify_single) but not RES_DNSRCH (search_parents).
942
08955dd3
PH
943PH/17 Applied (a modified version of) Nico Erfurth's patch to make
944 spool_read_header() do less string testing, by means of a preliminary
945 switch on the second character of optional "-foo" lines. (This is
946 overdue, caused by the large number of possibilities that now exist.
947 Originally there were few.) While I was there, I also converted the
948 str(n)cmp tests so they don't re-test the leading "-" and the first
949 character, in the hope this might squeeze out yet more improvement.
950
1eccaa59
PH
951PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
952 flag allowing group syntax was set by the header_syntax check but not
953 turned off, possible causing trouble later; (2) The flag was not being
954 set at all for the header_verify test, causing "group"-style headers to
955 be rejected. I have now set it in this case, and also caused header_
956 verify to ignore an empty address taken from a group. While doing this, I
957 came across some other cases where the code for allowing group syntax
958 while scanning a header line wasn't quite right (mostly, not resetting
959 the flag correctly in the right place). These bugs could have caused
960 trouble for malformed header lines. I hope it is now all correct.
961
602e59e5
PH
962PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
963 with the "reply" argument non-NULL. The code, however (which originally
964 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
965 but it didn't always do it. This confused somebody who was copying the
966 code for some other use. I have removed all the tests.
967
411ef850
PH
968PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
969 feature that was used to support insecure browsers during the U.S. crypto
970 embargo. It requires special client support, and Exim is probably the
971 only MTA that supported it -- and would never use it because real RSA is
972 always available. This code has been removed, because it had the bad
973 effect of slowing Exim down by computing (never used) parameters for the
974 RSA_EXPORT functionality.
975
7befa435
PH
976PH/21 On the advice of Timo Sirainen, added a check to the dovecot
977 authenticator to fail if there's a tab character in the incoming data
978 (there should never be unless someone is messing about, as it's supposed
979 to be base64-encoded). Also added, on Timo's advice, the "secured" option
980 if the connection is using TLS or if the remote IP is the same as the
981 local IP, and the "valid-client-cert option" if a client certificate has
982 been verified.
983
48da4259 984PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
985 authenticators. This can be used for authorization after authentication
986 succeeds. (In the case of plaintext, it servers for both authentication
987 and authorization.)
988
48da4259
PH
989PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
990 if any retry times were supplied.
991
d1d5595c
PH
992PH/24 Exim crashed if verify=helo was activated during an incoming -bs
993 connection, where there is no client IP address to check. In this
994 situation, the verify now always succeeds.
995
0ef732d9
PH
996PH/25 Applied John Jetmore's -Mset patch.
997
328895cc
PH
998PH/26 Added -bem to be like -Mset, but loading a message from a file.
999
fd700877
PH
1000PH/27 In a string expansion for a processed (not raw) header when multiple
1001 headers of the same name were present, leading whitespace was being
1002 removed from all of them, but trailing whitespace was being removed only
1003 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1004 before concatenation. Completely empty headers in a concatenation (as
1005 before) are ignored.
fd700877 1006
8dce1a6f
PH
1007PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1008 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1009
17af4a17
PH
1010PH/29 [Removed. This was a change that I later backed out, and forgot to
1011 correct the ChangeLog entry (that I had efficiently created) before
1012 committing the later change.]
f6c332bd
PH
1013
1014PH/30 Exim was sometimes attempting to deliver messages that had suffered
1015 address errors (4xx response to RCPT) over the same connection as other
1016 messages routed to the same hosts. Such deliveries are always "forced",
1017 so retry times are not inspected. This resulted in far too many retries
1018 for the affected addresses. The effect occurred only when there were more
1019 hosts than the hosts_max_try setting in the smtp transport when it had
1020 the 4xx errors. Those hosts that it had tried were not added to the list
1021 of hosts for which the message was waiting, so if all were tried, there
1022 was no problem. Two fixes have been applied:
1023
1024 (i) If there are any address or message errors in an SMTP delivery, none
1025 of the hosts (tried or untried) are now added to the list of hosts
1026 for which the message is waiting, so the message should not be a
1027 candidate for sending over the same connection that was used for a
1028 successful delivery of some other message. This seems entirely
1029 reasonable: after all the message is NOT "waiting for some host".
1030 This is so "obvious" that I'm not sure why it wasn't done
1031 previously. Hope I haven't missed anything, but it can't do any
1032 harm, as the worst effect is to miss an optimization.
1033
1034 (ii) If, despite (i), such a delivery is accidentally attempted, the
1035 routing retry time is respected, so at least it doesn't keep
1036 hammering the server.
1037
c1114884
PH
1038PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1039 in ${readsocket because some servers need this prod.
1040
7a0743eb
PH
1041PH/32 Added some extra debug output when updating a wait-xxx database.
1042
0d85fa3f
PH
1043PH/33 The hint "could be header name not terminated by colon", which has been
1044 given for certain expansion errors for a long time, was not being given
1045 for the ${if def:h_colon_omitted{... case.
1046
1bf43b78
PH
1047PH/34 The spec says: "With one important exception, whenever a domain list is
1048 being scanned, $domain contains the subject domain." There was at least
1049 one case where this was not true.
1050
520de300
PH
1051PH/35 The error "getsockname() failed: connection reset by peer" was being
1052 written to the panic log as well as the main log, but it isn't really
1053 panic-worthy as it just means the connection died rather early on. I have
1054 removed the panic log writing for the ECONNRESET error when getsockname()
1055 fails.
1056
48c7f9e2
PH
1057PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1058 runs only) independently of the message's sender address. This meant
1059 that, if the 4xx error was in fact related to the sender, a different
1060 message to the same recipient with a different sender could confuse
1061 things. In particualar, this can happen when sending to a greylisting
1062 server, but other circumstances could also provoke similar problems.
1063 I have changed the default so that the retry time for these errors is now
1064 based a combination of the sender and recipient addresses. This change
1065 can be overridden by setting address_retry_include_sender=false in the
1066 smtp transport.
1067
99ea1c86
PH
1068PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1069 remote server are returned as part of bounce messages. This was not
1070 happening for LMTP over a pipe (the lmtp transport), but now it is the
1071 same for both kinds of LMTP.
1072
a2042e78
PH
1073PH/38 Despite being documented as not happening, Exim was rewriting addresses
1074 in header lines that were in fact CNAMEs. This is no longer the case.
1075
4fbcfc2e
PH
1076PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1077 and queue runs started by the daemon processed all messages. This has
1078 been fixed so that -R and -S can now usefully be given with -q<time>.
1079
aa41d2de
PH
1080PH/40 Import PCRE release 6.7 (fixes some bugs).
1081
af561417
PH
1082PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1083
3cc66b45
PH
1084PH/42 Give an error if -q is specified more than once.
1085
194cc0e4
PH
1086PH/43 Renamed the variables $interface_address and $interface_port as
1087 $received_ip_address and $received_port, to make it clear that these
1088 values apply to message reception, and not to the outgoing interface when
1089 a message is delivered. (The old names remain recognized, of course.)
1090
a401ddaa
PH
1091PH/44 There was no timeout on the connect() call when using a Unix domain
1092 socket in the ${readsocket expansion. There now is.
1093
4e88a19f
PH
1094PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1095 be meaningful with "accept".
1096
d7d7b289
SC
1097SC/01 Eximstats V1.43
1098 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1099
1100SC/02 Eximstats V1.44
1101 Use a glob alias rather than an array ref in the generated
1102 parser. This improves both readability and performance.
1103
1104SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1105 Collect SpamAssassin and rejection statistics.
1106 Don't display local sender or destination tables unless
1107 there is data to show.
1108 Added average volumes into the top table text output.
1109
1110SC/04 Eximstats V1.46
1111 Collect data on the number of addresses (recipients)
1112 as well as the number of messages.
1113
1114SC/05 Eximstats V1.47
1115 Added 'Message too big' to the list of mail rejection
1116 reasons (thanks to Marco Gaiarin).
1117
1118SC/06 Eximstats V1.48
1119 Mainlog lines which have GMT offsets and are too short to
1120 have a flag are now skipped.
1121
1122SC/07 Eximstats V1.49 (Alain Williams)
1123 Added the -emptyok flag.
1124
1125SC/08 Eximstats V1.50
1126 Fixes for obtaining the IP address from reject messages.
1127
0ea2a468
JJ
1128JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1129 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1130 whitesspace changes from 4.64-PH/27
1131
1132JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1133 match 4.64-PH/13
1134
1135JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1136 are found, allow negative numbers in numeric criteria)
1137
1138JJ/06 exipick.20061117.2, added new $message_body_missing variable
1139
1140JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1141 to match changes made in 4.64-PH/43
1142
8a10f5a4
PH
1143PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1144
30e18802
PH
1145PH/47 Put in an explicit test for a DNS lookup of an address record where the
1146 "domain" is actually an IP address, and force a failure. This locks out
1147 those revolvers/nameservers that support "A-for-A" lookups, in
1148 contravention of the specifications.
1149
55728a4f
PH
1150PH/48 When a host name was looked up from an IP address, and the subsequent
1151 forward lookup of the name timed out, the host name was left in
1152 $sender_host_name, contrary to the specification.
d7d7b289 1153
d7837193
PH
1154PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1155 restricted to single-key lookups, Exim was not diagnosing an error if
1156 * or *@ was used with a query-style lookup.
1157
87054a31
PH
1158PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1159
ea2c01d2
MH
1160MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1161 long ago, but noone interested enough thought of it. Let's just say that
1162 the "1.1" means that there are some new functions that weren't there at
1163 some point in the past.
1164
e4fa6968
PH
1165PH/51 Error processing for expansion failure of helo_data from an smtp
1166 transport during callout processing was broken.
1167
56f5d9bd
PH
1168PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1169 tested/used via the -bh/-bhc/-bs options.
1170
922e1c28
PH
1171PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1172 bug, fixed in subsequent PCRE releases).
1173
21eb6e72
PH
1174PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1175 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1176
a0540757
PH
1177PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1178
944e9e9c 1179
478be7b0
SC
1180Exim version 4.63
1181-----------------
1182
1183SC/01 Use a glob alias rather than an array ref in eximstats generated
1184 parser. This improves both readability and performance.
1185
1186SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1187 Don't display local sender or destination tables in eximstats unless
1188 there is data to show.
1189 Added average volumes into the eximstats top table text output.
1190
1191SC/03 Collect data on the number of addresses (recipients) as well
1192 as the number of messages in eximstats.
1193
2b965a65
TF
1194TF/01 Correct an error in the documentation for the redirect router. Exim
1195 does (usually) call initgroups() when daemonizing.
478be7b0 1196
45b91596
PH
1197TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1198 with consistent privilege compared to when running as a daemon.
478be7b0 1199
c59f5781
TF
1200TF/03 Note in the spec that $authenticated_id is not set for local
1201 submissions from trusted users.
1202
90fc3069
TF
1203TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1204 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1205
6083aca0
TF
1206TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1207 by adding some example configuration directives to the default
1208 configuration file. A little bit of work is required to uncomment the
1209 directives and define how usernames and passwords are checked, but
1210 there is now a framework to start from.
1211
765b530f
PH
1212PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1213 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1214 without this. I don't know how relevant this is to other LDAP libraries.
1215
4e167a8c
PH
1216PH/02 Add the verb name to the "unknown ACL verb" error.
1217
4608d683
PH
1218PH/03 Magnus Holmgren's patch for filter_prepend_home.
1219
b8dc3e4a
PH
1220PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1221
5418e93b
PH
1222PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1223 directory not expanded when it should be if an expanded home directory
1224 was set for the address (which is overridden by the transport).
1225
b4a9bda2
PH
1226PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1227 libradius.
1228
45b91596
PH
1229PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1230 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1231 because it is too late at that time, and has no effect.
1232
5547e2c5
PH
1233PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1234 security issue with \' (bugzilla #107). I could not use the
1235 PQescapeStringConn() function, because it needs a PGconn value as one of
1236 its arguments.
1237
dbcef0ea
PH
1238PH/08 When testing addresses using -bt, indicate those final addresses that
1239 are duplicates that would not cause an additional delivery. At least one
1240 person was confused, thinking that -bt output corresponded to deliveries.
1241 (Suppressing duplicates isn't a good idea as you lose the information
1242 about possibly different redirections that led to the duplicates.)
1243
25257489
PH
1244PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1245 systems where poll() doesn't work, in particular OS X.
1246
c816d124
PH
1247PH/10 Added more information to debugging output for retry time not reached.
1248
a9ccd69a
PH
1249PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1250 operations in malware.c.
1251
75fa1910
PH
1252PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1253 signatures.
1254
a7d7aa58
PH
1255PH/13 If write_rejectlog was set false when logging was sent to syslog with
1256 syslog_duplication set false, log lines that would normally be written
1257 both the the main log and to the reject log were not written to syslog at
1258 all.
1259
42119b09
PH
1260PH/14 In the default configuration, change the use of "message" in ACL warn
1261 statements to "add_header".
1262
41609df5
PH
1263PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1264 not followed by a command (e.g. "seen endif").
1265
a5bd321b
PH
1266PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1267 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1268 latter.
1269
e85a7ad5 1270PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1271 so that it is now:
1272
e85a7ad5
PH
1273 ${if or { \
1274 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1275 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1276 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1277 }{no}{yes}}
1278
e85a7ad5
PH
1279 The Auto-Submitted: and various List- headers are standardised, whereas I
1280 don't think Precedence: ever was.
5dff5817 1281
d8fe1c03
PH
1282PH/18 Refactored debugging code in route_finduser() to show more information,
1283 in particular, the error code if getpwnam() issues one.
1284
16282d2b
PH
1285PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1286 This is apparently needed in addition to the PH/07 change above to avoid
1287 any possible encoding problems.
1288
35d40a98
PH
1289PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1290 but not after initializing Perl.
1291
034d99ab
PH
1292PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1293 output them only if debugging. By default they are written stderr,
1294 apparently, which is not desirable.
1295
6ec97b1b
PH
1296PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1297 queries.
1298
e22ca4ac
JJ
1299JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1300 --not options
1301
1302JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1303
33d73e3b
PH
1304PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1305 authenticated or an ident call has been made. Suppress the default
1306 values for $authenticated_id and $authenticated_sender (but permit -oMai
1307 and -oMas) when testing with -bh.
1308
9ecb03f3
PH
1309PH/24 Re-jigged the order of the tests in the default configuration so that the
1310 tests for valid domains and recipients precede the DNS black list and CSA
1311 tests, on the grounds that those ones are more expensive.
1312
084efe8d
PH
1313PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1314 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1315 This bug exists in every version of Exim that I still have, right back to
1316 0.12.
1317
366fc9f0
PH
1318PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1319 However, an attempt to turn on case-sensitivity in a regex key by
1320 including (?-i) didn't work because the subject string was already
1321 lowercased, and the effects were non-intuitive. It turns out that a
1322 one-line patch can be used to allow (?-i) to work as expected.
1323
c59f5781 1324
c887c79e
TF
1325Exim version 4.62
1326-----------------
1327
1328TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1329 other effects) broke the use of negated acl sub-conditions.
1330
1cce3af8
PH
1331PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1332 patch).
1333
afb3eaaf
PH
1334PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1335 "Deny" causes Exim to reject the incoming connection with a 554 error.
1336 Unfortunately, if there is a major crisis, such as a disk failure,
1337 tcp-wrappers gives "deny", whereas what one would like would be some
1338 kind of temporary error. A kludge has been added to help with this.
1339 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1340 554 error is used if errno is still zero or contains ENOENT (which occurs
1341 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1342 451 error is used.
1343
e173618b
PH
1344PH/03 Add -lutil to the default FreeBSD LIBS setting.
1345
dd16e114
PH
1346PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1347 errors. Otherwise a message that provokes a temporary error (when other
1348 messages do not) can cause a whole host to time out.
1349
f7fd3850
PH
1350PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1351 addresses were routed directly to files or pipes from a redirect router.
1352 File deliveries just didn't batch; pipe deliveries might have suffered
1353 odd errors.
1354
d87df92c
PH
1355PH/06 A failure to get a lock for a hints database would erroneously always say
1356 "Failed to get write lock", even when it was really a read lock.
1357
7e9f683d
PH
1358PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1359 of 0600. This has been changed to use the value of the lockfile_mode
1360 option (which defaults to 0600).
1361
bfad5236
PH
1362PH/08 Applied small patch from the Sieve maintainer.
1363
01c490df
PH
1364PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1365 folder from quota calculations, a direct delivery into this folder messed
1366 up the contents of the maildirsize file. This was because the regex was
1367 used only to exclude .Trash (or whatever) when the size of the mailbox
1368 was calculated. There was no check that a delivery was happening into an
1369 excluded directory. This bug has been fixed by ignoring all quota
1370 processing for deliveries into excluded directories.
1371
d6629cdc
PH
1372PH/10 Added the maildirfolder_create_regex option to appendfile.
1373
1cce3af8 1374
214e2000
PH
1375Exim version 4.61
1376-----------------
1377
1378PH/01 The code for finding all the local interface addresses on a FreeBSD
1379 system running IPv6 was broken. This may well have applied to all BSD
1380 systems, as well as to others that have similar system calls. The broken
1381 code found IPv4 interfaces correctly, but gave incorrect values for the
1382 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1383 that it would not match correctly against @[] and not recognize the IPv6
1384 addresses as local.
1385
f9daeae0
PH
1386PH/02 The ipliteral router was not recognizing addresses of the form user@
1387 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1388
7e66e54d
PH
1389PH/03 Added disable_ipv6.
1390
c8ea1597
PH
1391PH/04 Changed $reply_address to use the raw form of the headers instead of the
1392 decoded form, because it is most often used to construct To: headers
1393 lines in autoreplies, and the decoded form may well be syntactically
1394 invalid. However, $reply_address has leading white space removed, and all
1395 newlines turned into spaces so that the autoreply transport does not
1396 grumble.
1397
911f6fde
PH
1398PH/05 If group was specified without a user on a router, and no group or user
1399 was specified on a transport, the group from the router was ignored.
1400
47ca6d6c
PH
1401PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1402 for visible compile-time settings that can be used to change these
1403 numbers, for those that want even more. Backwards compatibility with old
1404 spool files has been maintained. However, going back to a previous Exim
1405 release will lost any variables that are in spool files.
1406
ed0e9820
PH
1407PH/07 Two small changes when running in the test harness: increase delay when
1408 passing a TCP/IP connection to a new process, in case the original
1409 process has to generate a bounce, and remove special handling of
1410 127.0.0.2 (sic), which is no longer necessary.
1411
eff37e47
PH
1412PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1413 be the same on different OS.
1414
1921d2ea
PH
1415PH/09 Moved a debug statement in filter processing to avoid a race problem when
1416 testing.
1417
b3f69ca8
JJ
1418JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1419 whether --show-vars was specified or not
1420
1421JJ/02 exipick: Added support for new ACL variable spool format introduced
1422 in 4.61-PH/06
1423
424a1c63
PH
1424PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1425 syntactically invalid From: or Reply-to: line, and a filter used this to
1426 generate an autoreply, and therefore failed to obtain an address for the
1427 autoreply, Exim could try to deliver to a non-existent relative file
1428 name, causing unrelated and misleading errors. What now happens is that
1429 it logs this as a hard delivery error, but does not attempt to create a
1430 bounce message.
1431
7a100415
PH
1432PH/11 The exinext utility has a -C option for testing purposes, but although
1433 the given file was scanned by exinext itself; it wasn't being passed on
1434 when Exim was called.
1435
19b9dc85
PH
1436PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1437 an end-of-file indication when reading a command response.
1438
309bd837
PH
1439PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1440 compiled. In many other places in Exim, IPv6 addresses are always
1441 recognized, so I have changed this. It also means that IPv4 domain
1442 literals of the form [IPV4:n.n.n.n] are now always recognized.
1443
59e82a2a
PH
1444PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1445 used if the router is not running as root, for example, when verifying at
1446 ACL time, or when using -bh. The debugging output from this situation was
1447 non-existent - all you got was a failure to exec. I have made two
1448 changes:
1449
1450 (a) Failures to set uid/gid, the current directory, or a process leader
1451 in a subprocess such as that created by queryprogram now generate
1452 suitable debugging ouput when -d is set.
1453
1454 (b) The queryprogram router detects when it is not running as root,
1455 outputs suitable debugging information if -d is set, and then runs
1456 the subprocess without attempting to change uid/gid.
1457
9edc04ce
PH
1458PH/15 Minor change to Makefile for building test_host (undocumented testing
1459 feature).
1460
1349e1e5
PH
1461PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1462 additional section of a DNS packet that returns MX or SRV records.
1463 Instead, it always explicitly searches for A/AAAA records. This avoids
1464 major problems that occur when a DNS server includes only records of one
1465 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1466 fixed another bug: if SRV records were looked up and the corresponding
1467 address records were *not* found in the additional section, the port
1468 values from the SRV records were lost.
1469
ea49d0e1
PH
1470PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1471 using the correct key (the original address) when searching the retry
1472 rules in order to find which one to use for generating the retry hint.
1473
064a94c9
PH
1474PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1475 adding the default one. Similarly, if it contains a Reply-To: header, the
1476 errors_reply_to option, if set, is not used.
1477
727071f8
PH
1478PH/19 When calculating a retry time, Exim used to measure the "time since
1479 failure" by looking at the "first failed" field in the retry record. Now
1480 it does not use this if it is later than than the arrival time of the
1481 message. Instead it uses the arrival time. This makes for better
1482 behaviour in cases where some deliveries succeed, thus re-setting the
1483 "first failed" field. An example is a quota failure for a huge message
1484 when small messages continue to be delivered. Without this change, the
1485 "time since failure" will always be short, possible causing more frequent
1486 delivery attempts for the huge message than are intended.
dd16e114 1487 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1488
f78eb7c6
PH
1489PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1490 $1, $2, $3) because the numerical variables can be reset during some
1491 expansion items (e.g. "match"), thereby losing the authentication data.
1492
21c28500
PH
1493PH/21 Make -bV show the size of off_t variables so that the test suite can
1494 decide whether to run tests for quotas > 2G.
1495
1496PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1497 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1498 filecount value is greater than 2G or if a quota value is greater than 2G
1499 on a system where the size of off_t is not greater than 4, a panic error
1500 is given.
1501
1688f43b
PH
1502PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1503 never match. The debug and -bh output now contains an explicit error
1504 message indicating a malformed IPv4 address or mask.
1505
1506PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1507 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1508 PH/23 above applies.
1509
9675b384
PH
1510PH/25 Do not write to syslog when running in the test harness. The only
1511 occasion when this arises is a failure to open the main or panic logs
1512 (for which there is an explicit test).
1513
6a3f1455
PH
1514PH/26 Added the /no_tell option to "control=freeze".
1515
dac79d3e
PH
1516PH/27 If a host name lookup failed very early in a connection, for example, if
1517 the IP address matched host_lookup and the reverse lookup yielded a name
1518 that did not have a forward lookup, an error message of the form "no IP
1519 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1520 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1521
5977a0b3
PH
1522PH/28 An enabling patch from MH: add new function child_open_exim2() which
1523 allows the sender and the authenticated sender to be set when
1524 submitting a message from within Exim. Since child_open_exim() is
1525 documented for local_scan(), the new function should be too.
1526
c91535f3
PH
1527PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1528 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1529 results in an empty string is now treated as unset.
1530
0d46a8c8
PH
1531PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1532
278c6e6c
PH
1533PH/31 Added sender_verify_fail logging option.
1534
2cbb4081
PH
1535PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1536 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1537 tidied the source and removed it altogether.
1538
3eef829e
PH
1539PH/33 When a queue run was abandoned because the load average was too high, a
1540 log line was always written; now it is written only if the queue_run log
1541 selector is set. In addition, the log line for abandonment now contains
1542 information about the queue run such as the pid. This is always present
1543 in "start" and "stop" lines but was omitted from the "abandon" line.
1544
1ab95fa6
PH
1545PH/34 Omit spaces between a header name and the colon in the error message that
1546 is given when verify = headers_syntax fails (if there are lots of them,
1547 the message gets confusing).
1548
230205fc
PH
1549PH/35 Change the default for dns_check_names_pattern to allow slashes within
1550 names, as there are now some PTR records that contain slashes. This check
1551 is only to protect against broken name servers that fall over on strange
1552 characters, so the fact that it applies to all lookups doesn't matter.
1553
75e0e026
PH
1554PH/36 Now that the new test suite is complete, we can remove some of the
1555 special code in Exim that was needed for the old test suite. For example,
1556 sorting DNS records because real resolvers return them in an arbitrary
1557 order. The new test suite's fake resolver always returns records in the
1558 same order.
1559
1560PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1561 bounces) except when queue_only is set, to avoid logging races between
1562 the different processes.
1563
145396a6
PH
1564PH/38 Panic-die if .include specifies a non-absolute path.
1565
3cd34f13
PH
1566PH/39 A tweak to the "H" retry rule from its user.
1567
11121d3d
JJ
1568JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1569 a label. They prevented compilation on older perls.
1570
1571JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1572 a warning to be raised on newish perls.
1573
1574JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1575 on queue. Changes to match documented behaviour of showing count of
1576 messages matching specified criteria.
1577
8def5aaf
PH
1578PH/40 Changed the default ident timeout from 30s to 5s.
1579
929ba01c
PH
1580PH/41 Added support for the use of login_cap features, on those BSD systems
1581 that have them, for controlling the resources used by pipe deliveries.
1582
2632889e
PH
1583PH/42 The content-scanning code uses fopen() to create files in which to put
1584 message data. Previously it was not paying any attention to the mode of
1585 the files. Exim runs with umask(0) because the rest of the code creates
1586 files with open(), and sets the required mode explicitly. Thus, these
1587 files were ending up world-writeable. This was not a big issue, because,
1588 being within the spool directory, they were not world-accessible. I have
1589 created a function called modefopen, which takes an additional mode
1590 argument. It sets umask(777), creates the file, chmods it to the required
1591 mode, then resets the umask. All the relevant calls to fopen() in the
1592 content scanning code have been changed to use this function.
1593
944a9c55
PH
1594PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1595 to 24 hours. This avoids potential overflow problems when processing G
1596 and H retry rules. I suspect nobody ever tinkers with this value.
1597
4a23603b
PH
1598PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1599
4730f942
PH
1600PH/45 When the plaintext authenticator is running as a client, the server's
1601 challenges are checked to ensure they are valid base64 strings. By
1602 default, the authentication attempt is cancelled if an invalid string is
1603 received. Setting client_ignore_invalid_base64 true ignores these errors.
1604 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1605 they are received. Thus, the responses can be made to depend on the
1606 challenges. If an invalid string is ignored, an empty string is placed in
1607 the variable.
1608
30dba1e6
PH
1609PH/46 Messages that are created by the autoreply transport now contains a
1610 References: header, in accordance with RFCs 2822 and 3834.
1611
382afc6b
PH
1612PH/47 Added authenticated_sender_force to the smtp transport.
1613
a86229cf
PH
1614PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1615
50c99ba6
PH
1616PH/49 Installed latest patch from the Sieve maintainer.
1617
d35e429d
PH
1618PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1619 was also set, the appendfile transport was unnecessarily scanning a
1620 directory of message files (e.g. for maildir delivery) to find the count
1621 of files (along with the size), even though it did not need this
1622 information. It now does the scan only if it needs to find either the
1623 size of the count of files.
1624
f90d018c
PH
1625PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1626
75def545
PH
1627PH/52 Two bugs concerned with error handling when the smtp transport is
1628 used in LMTP mode:
1629
1630 (i) Exim was not creating retry information for temporary errors given
1631 for individual recipients after the DATA command when the smtp transport
1632 was used in LMTP mode. This meant that they could be retried too
1633 frequently, and not timed out correctly.
1634
1635 (ii) Exim was setting the flag that allows error details to be returned
1636 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1637 recipients that were returned after the DATA command.
1638
1639PH/53 This is related to PH/52, but is more general: for any failing address,
1640 when detailed error information was permitted to be returned to the
1641 sender, but the error was temporary, then after the final timeout, only
1642 "retry timeout exceeded" was returned. Now it returns the full error as
1643 well as "retry timeout exceeded".
1644
c46782ef
PH
1645PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1646 do this, and (what is worse) MTAs that accept it.
1647
71fafd95
PH
1648PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1649 will now be deprecated.
1650
2c5db4fd
PH
1651PH/56 New os.c-cygwin from the Cygwin maintainer.
1652
9cf6b11a
JJ
1653JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1654 formats (previously only available in exim formats via -bpr, -bpru,
1655 and -bpra. Now also available in native and exiqgrep formats)
1656
1657JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1658 with very large, slow to parse queues
1659
1660JJ/08 exipick: added ! as generic prefix to negate any criteria format
1661
1662JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1663
898d150f
PH
1664PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1665 responses to authentication challenges, though it was showing the
1666 challenges; (ii) I've removed the CR characters from the debug output for
1667 SMTP output lines.
1668
46218253
PH
1669PH/58 Allow for the insertion of a newline as well as a space when a string
1670 is turned into more than one encoded-word during RFC 2047 encoding. The
1671 Sieve code now uses this.
1672
e97957bc
PH
1673PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1674 data_4xx, lost_connection, tls_required.
1675
81e509d7
PH
1676PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1677 message was being sent as an SMTP response.
1678
3d240ff7
PH
1679PH/61 Add -l and -k options to exicyclog.
1680
b37c4101
PH
1681PH/62 When verifying, if an address was redirected to one new address, so that
1682 verification continued, and the new address failed or deferred after
1683 having set something in $address_data, the value of $address_data was not
1684 passed back to the ACL. This was different to the case when no
1685 redirection occurred. The value is now passed back in both cases.
1686
79378e0f
PH
1687PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1688 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1689 use login_cap.h, so on its own it isn't the distinguishing feature. The
1690 new name refers directly to the setclassresources() function.
1691
e49c7bb4
PH
1692PH/65 Added configuration files for NetBSD3.
1693
d114ec46
PH
1694PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1695
f3d7df6c
PH
1696PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1697 is preferred over IPv4.
1698
715ab376
PH
1699PH/68 The bounce_return_message and bounce_return_body options were not being
1700 honoured for bounces generated during the reception of non-SMTP messages.
1701 In particular, this applied to messages rejected by the ACL. This bug has
1702 been fixed. However, if bounce_return_message is true and bounce_return_
1703 body is false, the headers that are returned for a non-SMTP message
1704 include only those that have been read before the error was detected.
1705 (In the case of an ACL rejection, they have all been read.)
1706
6b31b150
PH
1707PH/69 The HTML version of the specification is now built in a directory called
1708 spec_html instead of spec.html, because the latter looks like a path with
1709 a MIME-type, and this confuses some software.
1710
1711PH/70 Catch two compiler warnings in sieve.c.
1712
d515a917
PH
1713PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1714 function verify_get_ident() calls ip_connect() to connect a socket, but
1715 if the "connect()" function timed out, ip_connect() used to close the
1716 socket. However, verify_get_ident() also closes the socket later, and in
1717 between Exim writes to the log, which may get opened at this point. When
1718 the socket was closed in ip_connect(), the log could get the same file
1719 descriptor number as the socket. This naturally causes chaos. The fix is
1720 not to close the socket in ip_connect(); the socket should be closed by
1721 the function that creates it. There was only one place in the code where
1722 this was missing, in the iplookup router, which I don't think anybody now
1723 uses, but I've fixed it anyway.
1724
9b8fadde
PH
1725PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1726 well as to direct DNS lookups. Otherwise the handling of names in host
1727 lists is inconsistent and therefore confusing.
1728
214e2000 1729
5de37277
PH
1730Exim version 4.60
1731-----------------
1732
cc38ddbf
PH
1733PH/01 Two changes to the default runtime configuration:
1734
1735 (1) Move the checks for relay_from_hosts and authenticated clients from
1736 after to before the (commented out) DNS black list checks.
1737
1738 (2) Add control=submission to the relay_from_hosts and authenticated
1739 clients checks, on the grounds that messages accepted by these
1740 statements are most likely to be submissions.
5de37277 1741
72fdd6ae
PH
1742PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1743
1744 (1) Generate an error if the third argument for the ${prvs expansion is
1745 not a single digit.
1746
1747 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1748 string.
1749
1750 (3) Reset the variables that are obtained from the first argument of
1751 ${prvscheck and used in the second argument before leaving the code,
1752 because their memory is reclaimed, so using them afterwards may do
1753 silly things.
1754
1755 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1756 one (it's much easier than Tom thought :-).
1757
1758 (5) Because of (4), we can now allow for the use of $prvscheck_result
1759 inside the third argument.
cb9328de 1760
cb741023
PH
1761PH/03 For some reason, the default setting of PATH when running a command from
1762 a pipe transport was just "/usr/bin". I have changed it to
1763 "/bin:/usr/bin".
1764
f174f16e
PH
1765PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1766 anything to be listed in the output from -bV.
b2f5a032 1767
c25242d7
PH
1768PH/05 When a filter generated an autoreply, the entire To: header line was
1769 quoted in the delivery log line, like this:
1770
1771 => >A.N.Other <ano@some.domain> <original@ddress> ...
1772
1773 This has been changed so that it extracts the operative address. There
1774 may be more than one such address. If so, they are comma-separated, like
1775 this:
1776
1777 => >ano@some.domain,ona@other.domain <original@ddress> ...
1778
82c19f95
PH
1779PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1780 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1781 not being looked up in the rDNS to get a host name, Exim was showing the
1782 IP address twice in Received: lines, even though the IP addresses were
1783 identical. For example:
1784
1785 Received: from [1.2.3.4] (helo=[1.2.3.4])
1786
1787 However, if the real host name was known, it was omitting the HELO data
1788 if it matched the actual IP address. This has been tidied up so that it
1789 doesn't show the same IP address twice.
1790
d7ffbc12
PH
1791PH/07 When both +timestamp and +memory debugging was on, the value given by
1792 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1793 called by the debug printing, thereby overwriting the timestamp buffer.
1794 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1795
9f526266
PH
1796PH/08 When the original message was included in an autoreply transport, it
1797 always said "this is a copy of the message, including all the headers",
1798 even if body_only or headers_only was set. It now gives an appropriate
1799 message.
1800
87fcc8b9
PH
1801PH/09 Applied a patch from the Sieve maintainer which:
1802
1803 o fixes some comments
1804 o adds the (disabled) notify extension core
1805 o adds some debug output for the result of if/elsif tests
1806 o points to the current vacation draft in the documentation
1807 and documents the missing references header update
1808
1809 and most important:
1810
1811 o fixes a bug in processing the envelope test (when testing
1812 multiple envelope elements, the last element determinted the
1813 result)
1814
456682f5
PH
1815PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1816 Electronic Mail") by including:
1817
1818 Auto-submitted: auto-generated
1819
1820 in the messages that it generates (bounce messages and others, such as
1821 warnings). In the case of bounce messages for non-SMTP mesages, there was
1822 also a typo: it was using "Auto_submitted" (underscore instead of
1823 hyphen). Since every message generated by Exim is necessarily in response
1824 to another message, thes have all been changed to:
1825
1826 Auto-Submitted: auto-replied
1827
1828 in accordance with these statements in the RFC:
1829
1830 The auto-replied keyword:
1831
1832 - SHOULD be used on messages sent in direct response to another
1833 message by an automatic process,
1834
1835 - MUST NOT be used on manually-generated messages,
1836
1837 - MAY be used on Delivery Status Notifications (DSNs) and Message
1838 Disposition Notifications (MDNs),
1839
1840 - MUST NOT be used on messages generated by automatic or periodic
1841 processes, except for messages which are automatic responses to
1842 other messages.
1843
3e46c1aa
PH
1844PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1845 to the default Received: header definition.
456682f5 1846
49826d12
PH
1847PH/12 Added log selector acl_warn_skipped (default on).
1848
eba0c039
PH
1849PH/13 After a successful wildlsearch lookup, discard the values of numeric
1850 variables because (a) they are in the wrong storage pool and (b) even if
1851 they were copied, it wouldn't work properly because of the caching.
1852
a0d6ba8a
PH
1853PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1854 checking when decoding. Apparently there are clients that generate
1855 overlong encoded strings. Why am I not surprised?
1856
f0917727
PH
1857PH/15 If the first argument of "${if match_address" was not empty, but did not
1858 contain an "@" character, Exim crashed. Now it writes a panic log message
1859 and treats the condition as false.
1860
096fee00
PH
1861PH/16 In autoreply, treat an empty string for "once" the same as unset.
1862
024bd3c2
PH
1863PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1864 extension "envelope-auth". The code is finished and in agreement with
1865 other implementations, but there is no documentation so far and in fact,
1866 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1867 not changing the active code.
1868
1869 Print executed "if" and "elsif" statements when debugging is used. This
1870 helps a great deal to understand what a filter does.
1871
1872 Document more things not specified clearly in RFC3028. I had all this
1873 sorted out, when out of a sudden new issues came to my mind. Oops."
1874
df199fec
PH
1875PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1876 (Bugzilla #53).
1877
d27f1df3
PH
1878PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1879 canonical form (as documented). However, after a host name lookup from
1880 the IP address, check_host() was doing a simple string comparison with
1881 addresses acquired from the DNS when checking that the found name did
1882 have the original IP as one of its addresses. Since any found IPv6
1883 addresses are likely to be in abbreviated form, the comparison could
1884 fail. Luckily, there already exists a function for doing the comparison
1885 by converting both addresses to binary, so now that is used instead of
1886 the text comparison.
1887
96776534
PH
1888PH/20 There was another similar case to PH/19, when a complete host name was
1889 given in a host list; looking up its IP address could give an abbreviated
1890 form, whereas the current host's name might or might not be abbreviated.
1891 The same fix has been applied.
1892
5de37277 1893
9a799bc0
PH
1894Exim version 4.54
1895-----------------
1896
1897PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1898 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1899 It now does.
1900
99a4b039
PH
1901PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1902 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1903
1904PH/03 Typo: missing ".o" in src/pcre/Makefile.
1905
4b233853
PH
1906PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1907 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1908 Also, for "Auto-Submitted", treat anything other than "no" as
1909 non-personal, in accordance with RFC 3834. (Previously it treated
1910 anything starting "auto-" as non-personal.)
1911
8857ccfd
PH
1912TF/01 The control=submission/name=... option had a problem with syntax
1913 errors if the name included a slash character. The /name= option
1914 now slurps the rest of the string, so it can include any characters
1915 but it must come last in the list of options (after /sender_retain
1916 or /domain=).
1917
433a2980
PH
1918PH/05 Some modifications to the interface to the fake nameserver for the new
1919 testing suite.
1920
3e46c1aa 1921
9a799bc0 1922
e3a311ba
TK
1923Exim version 4.53
1924-----------------
1925
1926TK/01 Added the "success_on_redirect" address verification option. See
1927 NewStuff for rationale and an example.
1928
13b685f9
PH
1929PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1930
395ff96d
PH
1931PH/02 Patch to exigrep to allow it to work on syslog lines.
1932
5b68f6e4
PH
1933PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1934 fread() to skip over the body file's header line, because in Cygwin the
1935 header line is locked and is inaccessible.
1936
1ab52c69
PH
1937PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1938 co-exist for some time) to make it clear that it is the Exim ID that is
1939 referenced, not the Message-ID: header line.
1940
b07e6aa3
PH
1941PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1942 string_format() function, because snprintf() does not exist on all
1943 operating systems.
1944
254e032f
PH
1945PH/06 The use of forbid_filter_existstest now also locks out the use of the
1946 ${stat: expansion item.
1947
3af76a81
PH
1948PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1949 protocol synchronization error", to keep the pedants happy.
1950
2548ba04
PH
1951PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1952 well as for IRIX systems, when gcc is being used. See the host.c source
1953 file for comments.
1954
b6c6011d
PH
1955PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1956
cf39cf57
PH
1957PH/10 Named domain lists were not working if used in a queue_smtp_domains
1958 setting.
1959
f1513293
PH
1960PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1961 transport and to the smtp transport in LMTP mode.
1962
727549a4
PH
1963TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1964
af46795e
PH
1965PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1966 run a filter in a subprocess. This could lead to confusion in subsequent
1967 lookups in the parent process. There should also be a search_tidyup() at
1968 the end of the subprocess.
1969
d7b47fd0
PH
1970PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1971 only if the host matched helo_try_verify_hosts, which caused the
1972 verification to occur when the EHLO/HELO command was issued. The ACL just
1973 tested the remembered result. Now, if a previous verification attempt has
1974 not happened, "verify = helo" does it there and then.
1975
ee744174
JJ
1976JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1977
b582ab87
PH
1978TK/03 Fix log output including CR from clamd.
1979
41a13e0a
PH
1980PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1981 exist provoked a memory error which could cause a segfault.
1982
f625cc5a
PH
1983PH/15 Installed PCRE 6.2
1984
1985PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1986
21f7af35
PH
1987PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1988 of the problem. Specifically, suggested +O2 rather than +O1 for the
1989 HP-UX compiler.
1990
31480e42
PH
1991PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1992
2d280592
PH
1993PH/20 If a delivery was routed to a non-standard port by means of an SRV
1994 record, the port was not correctly logged when the outgoing_port log
1995 selector was set (it logged the transort's default port).
1996
7cd1141b
PH
1997PH/21 Added support for host-specific ports to manualroute, queryprogram,
1998 fallback_hosts, and "hosts" in the smtp transport.
1999
2000PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2001 host errors such as "Connection refused".
2002
750af86e
PH
2003PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2004 authentication with radiusclient 0.4.9:
2005
2006 - Error returned from rc_read_config was caught wrongly
2007 - Username/password not passed on to radius server due to wrong length.
2008
2009 The presumption is that some radiusclient API changes for 4.51/PH/17
2010 were not taken care of correctly. The code is still untested by me (my
2011 Linux distribution still has 0.3.2 of radiusclient), but it was
2012 contributed by a Radius user.
2013
2014PH/24 When doing a callout, the value of $domain wasn't set correctly when
2015 expanding the "port" option of the smtp transport.
2016
4304270b
TK
2017TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2018 while reading a MIME header. Thanks to Tom Hughes for a patch.
2019
750af86e
PH
2020PH/24 Include config.h inside local_scan.h so that configuration settings are
2021 available.
2022
64ffc24f
PH
2023PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2024 that in an ACL for RCPT (for example), you can examine exactly what was
2025 received.
2026
5dd9625b
PH
2027PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2028 commands, but it was not correctly comparing the address with the actual
2029 client host address. Thus, it would show the EHLO address in Received:
2030 header lines when this was not necessary.
2031
5591031b
PH
2032PH/27 Added the % operator to ${eval:}.
2033
ba18e66a
PH
2034PH/28 Exim tries to create and chdir to its spool directory when it starts;
2035 it should be ignoring failures (because with -C, for example, it has lost
2036 privilege). It wasn't ignoring creation failures other than "already
2037 exists".
2038
9cec981f
PH
2039PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2040 -bV or -d is used.
2041
aa2b5c79
PH
2042PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2043 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2044 too many continuations, the temporary file was not being removed, and the
2045 return code was incorrect.
aa2b5c79 2046
48a53b7f
PH
2047PH/31 Missing "BOOL" in function definition in filtertest.c.
2048
1c59d63b
PH
2049PH/32 Applied Sieve patches from the maintainer.
2050
671012da
TK
2051TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2052
1509d3a8
PH
2053PH/33 Added "verify = not_blind".
2054
2055PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2056 Local/Makefile (with some defaults set). These are used in built scripts
2057 such as exicyclog, but they have never been used in the exim_install
2058 script (though there are many overriding facilities there). I have
2059 arranged that the exim_install script now takes note of these two
2060 settings.
2061
2062PH/35 Installed configuration files for Dragonfly.
2063
2fe1a124
PH
2064PH/36 When a locally submitted message by a trusted user did not contain a
2065 From: header, and the sender address was obtained from -f or from an SMTP
2066 MAIL command, and the trusted user did not use -F to supply a sender
2067 name, $originator_name was incorrectly used when constructing a From:
2068 header. Furthermore, $originator_name was used for submission mode
2069 messages from external hosts without From: headers in a similar way,
2070 which is clearly wrong.
2071
8800895a
PH
2072PH/37 Added control=suppress_local_fixups.
2073
ccfdb010
PH
2074PH/38 When log_selector = +received_sender was set, and the addition of the
2075 sender made the log line's construction buffer exactly full, or one byte
2076 less than full, an overflow happened when the terminating "\n" was
2077 subsequently added.
2078
1130bfb0
PH
2079PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2080 when the result of a list match is failure because a DNS lookup failed.
2081
ebcb507f
PH
2082PH/40 RM_COMMAND is now used in the building process.
2083
c35e155c
PH
2084PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2085 the "build-* directories that it finds.
2086
95d1f782
PH
2087PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2088 address in a domain literal was a prefix of an interface address.
2089
fd6de02e
PH
2090PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2091 when verifying a sender address, unless rewrite_headers is false.
2092
58de37c5
PH
2093PH/44 Wrote a long comment about why errors_to addresses are verified as
2094 recipients, not senders.
2095
261cf466
TF
2096TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2097 the ratelimit ACL was added.
2098
3ee512ff
PH
2099PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2100
e08c430f
PH
2101PH/46 Added extra information about PostgreSQL errors to the error string.
2102
bef5a11f
PH
2103PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2104 avoiding the need to install special zones in a real server. This is
2105 backwards compatible; if it can't find the fake resolver, it drops back.
2106 Thus, both old and new test suites can be run.
2107
7546de58
TF
2108TF/02 Added util/ratelimit.pl
2109
e5d5a95f
TF
2110TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2111 clock is set back in time.
2112
2e88a017
TF
2113TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2114 Candler <B.Candler@pobox.com>.
2115
a5f65aa4
TF
2116TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2117 OK for addresses that are the result of redirections.
2118
e7726cbf
PH
2119PH/48 A number of further additions for the benefit of the new test suite,
2120 including a fake gethostbyname() that interfaces to the fake DNS resolver
2121 (see PH/47 above).
2122
a7fdad5b
TF
2123TF/06 The fix for widen_domains has also been applied to qualify_single and
2124 search_parents which are the other dnslookup options that can cause
2125 header rewrites.
2126
6af56900
PH
2127PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2128 type ("H").
2129
0925ede6
PH
2130PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2131
66afa403
TF
2132TF/07 Exim produced the error message "an SRV record indicated no SMTP
2133 service" if it encountered an MX record with an empty target hostname.
2134 The message is now "an MX or SRV record indicated no SMTP service".
2135
0154e85a
TF
2136TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2137 if the DNS of the sending site is misconfigured. This is quite a
2138 common situation. This change restores the behaviour of treating a
2139 helo verification defer as a failure.
2140
16f12c76
PH
2141PH/51 If self=fail was set on a router, the bounce message did not include the
2142 actual error message.
2143
bbe902f0 2144
e5a9dba6
PH
2145Exim version 4.52
2146-----------------
2147
2148TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2149
22c3b60b
PH
2150PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2151 command itself ended in error, the underlying message about the transport
2152 filter timeout was being overwritten with the pipe command error. Now the
2153 underlying error message should be appended to the second error message.
2154
06a9b4b5
PH
2155TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2156
c1ac6996
PH
2157PH/02 Reduce the amount of output that "make" produces by default. Full output
2158 can still be requested.
2159
9c7a242c
PH
2160PH/03 The warning log line about a condition test deferring for a "warn" verb
2161 was being output only once per connection, rather than after each
2162 occurrence (because it was using the same function as for successful
2163 "warn" verbs). This seems wrong, so I have changed it.
2164
87ba3f5f
PH
2165TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2166 it should not have, which might have caused a crash in the right
2167 circumstances, but probably never did.
2168
2169PH/04 Installed a modified version of Tony Finch's patch to make submission
2170 mode fix the return path as well as the Sender: header line, and to
2171 add a /name= option so that you can make the user's friendly name appear
2172 in the header line.
2173
29aba418
TF
2174TF/03 Added the control = fakedefer ACL modifier.
2175
fe0dab11
TF
2176TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2177 Mark Lowes for thorough testing.
870f6ba8 2178
11d337a4
TK
2179TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2180
2181TK/03 Merged latest SRS patch from Miles Wilton.
2182
415c8f3b
PH
2183PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2184 with the definition in sysexits.h (which is #included earlier).
2185 Fortunately, Exim does not actually use EX_OK. The code used to try to
2186 preserve the sysexits.h value, by assumimg that macro definitions were
2187 scanned for macro replacements. I have been disabused of this notion,
2188 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2189
958541e9
PH
2190PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2191 in the smtp transport. When a block could not be written in a single
2192 write() function, the timeout was being re-applied to each part-write.
2193 This seems wrong - if the receiver was accepting one byte at a time it
2194 would take for ever. The timeout is now adjusted when this happens. It
2195 doesn't have to be particularly precise.
2196
c206415f
TK
2197TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2198 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2199
2a4be8f9
PH
2200PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2201 without a domain if the check to <postmaster@domain> fails.
2202
1cba11c5
SC
2203SC/01 Eximstats: added -xls and the ability to specify output files
2204 (patch written by Frank Heydlauf).
2205
2206SC/02 Eximstats: use FileHandles for outputing results.
2207
2208SC/03 Eximstats: allow any combination of xls, txt, and html output.
2209
2210SC/04 Eximstats: fixed display of large numbers with -nvr option
2211
2212SC/05 Eximstats: fixed merging of reports with empty tables.
2213
2214SC/06 Eximstats: added the -include_original_destination flag
2215
2216SC/07 Eximstats: removed tabs and trailing whitespace.
2217
1005d00e
TK
2218TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2219
2220TK/06 MBOX spool code: Add real "From " MBOX separator line
2221 so the .eml file is really in mbox format (even though
2222 most programs do not really care). Patch from Alex Miller.
2223
2224TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2225 The latter is generated from $received_to and is only set if the
2226 message has one envelope recipient. SA can use these headers,
2227 obviously out-of-the-box. Patch from Alex Miller.
2228
9b4768fa
PH
2229PH/08 The ${def test on a variable was returning false if the variable's
2230 value was "0", contrary to what the specification has always said!
2231 The result should be true unless the variable is empty.
2232
2233PH/09 The syntax error of a character other than { following "${if
2234 def:variable_name" (after optional whitespace) was not being diagnosed.
2235 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2236 accidental colon was present, for example, could give incorrect results.
2237
0d7eb84a
PH
2238PH/10 Tidied the code in a number of places where the st_size field of a stat()
2239 result is used (not including appendfile, where other changes are about
2240 to be made).
2241
2242PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2243 This involved changing a lot of size variables from int to off_t. It
2244 should work with maildirs and everything.
2245
40727bee
TK
2246TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2247 spamd dying while we are connected to it.
2248
554d2369
TF
2249TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2250 <jgh@wizmail.org>
2251
1f922db1
PH
2252PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2253 function for BDB 4.3.
2254
ef213c3b
PH
2255PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2256
8ac170f3
PH
2257PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2258 the sources for PCRE have been re-arranged and more files are now
2259 involved.
2260
b1c749bb
PH
2261PH/15 The code I had for printing potentially long long variables in PH/11
2262 above was not the best (it lost precision). The length of off_t variables
2263 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2264 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2265 to be "long long int" or "long int". This is needed for the internal
2266 formatting function string_vformat().
b1c749bb 2267
4aac9b49
PH
2268PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2269 the configuration file to be ":syslog", then the script "guesses" where
2270 the logs files are, rather than using the compiled in default. In our
2271 case the guess is not the same as the compiled default, so the script
2272 suddenly stopped working when I started to use syslog. The patch checks
2273 to see if log_file_path is "". If so, it attempts to read it from exim
2274 with no configuration file to get the compiled in version, before it
2275 falls back to the previous guessing code."
2276
294520c8
TK
2277TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2278 implementing BATV in an Exim configuration. See NewStuff for the gory
2279 details.
2280
5bd022fe
PH
2281PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2282 Makefile that are specific to HP-UX.
2283
90e9ce59
PH
2284PH/18 If the "use_postmaster" option was set for a recipient callout together
2285 with the "random" option, the postmaster address was used as the MAIL
2286 FROM address for the random test, but not for the subsequent recipient
2287 test. It is now used for both.
2288
5ea81592
PH
2289PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2290 patch removes a few documentation additions to RFC 3028, because the
2291 latest draft now contains them. It adds the new en;ascii-case comparator
2292 and a new error check for 8bit text in MIME parts. Comparator and
2293 require names are now matched exactly. I enabled the subaddress
2294 extension, but it is not well tested yet (read: it works for me)."
2295
c6c2dc1d
PH
2296PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2297 rework some of the code of TK/09 above to avoid the hardwired use of
2298 "%lld" and "long long". Replaced the call to snprintf() with a call to
2299 string_vformat().
2300
fffffe4c
PH
2301PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2302 records point to non-existent hosts", "retry timeout exceeded", and
2303 "retry time not reached for any host after a long failure period".
ca02eafb 2304
9a26b6b2
PH
2305PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2306 experimental DomainKeys support:
2307
2308 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2309 (2) On an error such as an illegally used "control", the wrong name for
2310 the control was given.
2311
2312 These problems did NOT occur unless DomainKeys support was compiled.
2313
4aee0225
PH
2314PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2315
32d668a5
PH
2316PH/24 Added ${if match_ip condition.
2317
8187c3f3
PH
2318PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2319 databases so that it will be absolutely obvious if a crash occurs in the
2320 DB library. This is a regular occurrence (often caused by mis-matched
2321 db.h files).
2322
ff790e47 2323PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2324 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2325 picked up on a user's system that detects such things. There doesn't seem
2326 to be a gcc warning option for this - only an attribute that has to be
2327 put on the function's prototype. It seems that in Fedora Core 4 they have
2328 set this on a number of new functions. No doubt there will be more in due
2329 course.
ff790e47 2330
5417f6d1
PH
2331PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2332 specify a transport. However, if an address that was verified by such a
2333 router was the subject of a callout, Exim crashed because it tried to
2334 read the rcpt_include_affixes from the non-existent transport. Now it
2335 just assumes that the setting of that option is false. This bug was
2336 introduced by 4.51/PH/31.
2337
59cf8544
PH
2338PH/28 Changed -d+all to exclude +memory, because that information is very
2339 rarely of interest, but it makes the output a lot bigger. People tend to
2340 do -d+all out of habit.
2341
e7ad8a65
PH
2342PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2343 code in os-type was giving problems when libc.so lives in lib64, like on
2344 x86_64 Fedora Core.
2345
ade42478
PH
2346PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2347 aren't the modern standard, and it seems that some systems' include files
2348 don't always have them. Exim was already checking for some of the newer
2349 ones like T_AAAA, and defining it itself. I've added checks for all the
2350 record types that Exim uses.
2351
182ad5cf
PH
2352PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2353 not automatically generating a new one, as it is supposed to. This
2354 prevented TLS from working. If the file did exist, but contained invalid
2355 data, a new version was generated, as expected. It was only the case of a
2356 non-existent file that was broken.
2357
b0d9fc80
TK
2358TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2359 with a change in libdomainkeys > 0.64.
2360
2361TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2362 from DNS. If the selector record carries the flag, it now has
2363 precedence over the domain-wide flag.
2364
2365TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2366
47c7a64a
PH
2367PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2368 the use of a port name that isn't defined in /etc/services) occurred, the
2369 message was deferred as in a normal delivery, and thus remained on the
2370 spool, instead of being failed because of the mua_wrapper setting. This
2371 is now fixed, and I tidied up some of the mua_wrapper messages at the
2372 same time.
2373
a388bce4
SC
2374SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2375 the messages in a hash of arrays rather than using individual hashes.
2376 This is a bit cleaner and results in dramatic memory savings, albeit
2377 at a slight CPU cost.
2378
2379SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2380 as requested by Marc Sherman.
2381
2382SC/10 Eximstats: added histograms for user specified patterns as requested
2383 by Marc Sherman.
2384
0793e4ed
SC
2385SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2386
c58b88df
PH
2387PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2388 fopen() in the content-scanning modules that did not already have it.
2389
e7ad8a65 2390
7982096b
PH
2391Exim version 4.51
2392-----------------
2393
1a46a8c5
PH
2394TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2395 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2396
2f079f46 2397TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2398
2399TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2400
2401PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2402 to test Sieve filters that use "vacation".
2403
2404PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2405 that changes the way the GnuTLS parameters are stored in the cache file.
2406 The new format can be generated externally. For backward compatibility,
2407 if the data in the cache doesn't make sense, Exim assumes it has read an
2408 old-format file, and it generates new data and writes a new file. This
2409 means that you can't go back to an older release without removing the
2410 file.
2411
2412PH/03 A redirect router that has both "unseen" and "one_time" set does not
2413 work if there are any delivery delays because "one_time" forces the
2414 parent to be marked "delivered", so its unseen clone is never tried
2415 again. For this reason, Exim now forbids the simultaneous setting of
2416 these two options.
2417
2418PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2419 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2420 entry if you want to know the details. The fix, however, neglected to
2421 consider the case when local delivery batching is involved. The test for
2422 "previously delivered" was not happening when checking to see if an
2423 address could be batched with a previous (undelivered) one; under
2424 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2425 address.
1a46a8c5
PH
2426
2427PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2428 in its include files, and this causes problems building Exim.
2429
2430PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2431 header_syntax) but Exim was just ignoring anything given after a slash.
2432 In particular, this caused confusion with an attempt to use "verify =
2433 reverse_host_lookup/defer_ok". An error is now given when options are
2434 supplied for verify items that do not have them. (Maybe reverse_host_
2435 lookup should have a defer_ok option, but that's a different point.)
2436
2437PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2438 defined by RFC 821) to 2048, because there were problems with some AUTH
2439 commands, and RFC 1869 says the size should be increased for extended
2440 SMTP commands that take arguments.
2441
2442PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2443 Finch).
2444
2445PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2446 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2447
49c2d5ea
PH
2448PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2449 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2450 whatever). Otherwise the password may appear in the log. Following change
2451 PH/42 below, there is no longer a chance of it appearing in a bounce
2452 message.
49c2d5ea 2453
bf759a8b
PH
2454PH/11 Installed exipick version 20050225.0 from John Jetmore.
2455
83364d30
PH
2456PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2457 of its addresses was ever tried. (Bugzilla bug #2.)
2458
7999bbd7
PH
2459PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2460 the result incorrectly in the debug output. (It correctly added a newline
2461 to what was transported.)
2462
7dbf77c9
PH
2463TF/01 Added $received_time.
2464
74e0617f
PH
2465PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2466 commented out examples of how to interface to a virus scanner and to
2467 SpamAssassin. Also added commented examples of av_scanner and
2468 spamd_address settings.
2469
2f079f46
PH
2470PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2471 and controls are allowed in which ACLs. There were a couple of minor
2472 errors. Some of the entries in the conditions table (which is a table of
2473 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2474 negation of where the condition IS allowed.
2475
8c841523
PH
2476PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2477
7766a4f0
PH
2478PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2479 header file does not have a version number, so I've had to invent a new
2480 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2481 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2482 radiusclient), but it was contributed by a Radius user.
2483
8b417f2c
PH
2484PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2485 files or directories, for OpenSSL.
2486
901f42cb
PH
2487PH/19 When an Exim process that is running as root has to create an Exim log
2488 file, it does so in a subprocess that runs as exim:exim so as to get the
2489 ownership right at creation (otherwise, other Exim processes might see
2490 the file with the wrong ownership). There was no test for failure of this
2491 fork() call, which would lead to the process getting stuck as it waited
2492 for a non-existent subprocess. Forks do occasionally fail when resources
2493 run out. I reviewed all the other calls to fork(); they all seem to check
2494 for failure.
2495
f9b9210e
PH
2496PH/20 When checking for unexpected SMTP input at connect time (before writing
2497 the banner), Exim was not dealing correctly with a non-positive return
2498 from the read() function. If the client had disconnected by this time,
2499 the result was a log entry for a synchronization error with an empty
2500 string after "input=" when read() returned zero. If read() returned -1
2501 (an event I could not check), uninitialized data bytes were printed.
2502 There were reports of junk text (parts of files, etc) appearing after
2503 "input=".
2504
54cdb463
PH
2505PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2506
cf00dad6
PH
2507PH/22 Added support for macro redefinition, and (re)definition in between
2508 driver and ACL definitions.
2509
acb1b346
PH
2510PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2511 forgetting to use the resulting value; it was using the unexpanded value.
2512
c5ddb310
PH
2513PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2514 hadn't been configured. The fix is from Juergen Kreileder, who
2515 understands it better than I do:
2516
2517 "Here's what I see happening with three configured cyrus_sasl
2518 authenticators configured (plain, login, cram-md5):
2519
2520 On startup auth_cyrus_sasl_init() gets called for each of these.
2521 This means three calls to sasl_listmech() without a specified mech_list.
2522 => SASL tests which mechs of all available mechs actually work
2523 => three warnings about OTP not working
2524 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2525
2526 With the patch, sasl_listmech() also gets called three times. But now
2527 SASL's mech_list option is set to the server_mech specified in the the
2528 authenticator. Or in other words, the answer from sasl_listmech()
2529 gets limited to just the mech you're testing for (which is different
2530 for each call.)
2531 => the return list contains just 'plain' or 'login', 'cram-md5' or
2532 nothing depending on the value of ob->server_mech.
2533
2534 I've just tested the patch: Authentication still works fine,
2535 unavailable mechs specified in the exim configuration are still
2536 caught, and the auth.log warnings about OTP are gone."
2537
31619da6
PH
2538PH/25 When debugging is enabled, the contents of the command line are added
2539 to the debugging output, even when log_selector=+arguments is not
2540 specified.
2541
bebaf0fc
PH
2542PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2543 answer is "GNU", and only if the return is "GNU/something" is the answer
2544 "Linux".
2545
475fe28a
PH
2546PH/27 $acl_verify_message is now set immediately after the failure of a
2547 verification in an ACL, and so is available in subsequent modifiers. In
2548 particular, the message can be preserved by coding like this:
2549
2550 warn !verify = sender
2551 set acl_m0 = $acl_verify_message
2552
2553 Previously, $acl_verify_message was set only while expanding "message"
2554 and "log_message" when a very denied access.
2555
7e8bec7a
PH
2556PH/28 Modified OS/os.c-Linux with
2557
2558 -#ifndef OS_LOAD_AVERAGE
2559 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2560
2561 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2562 nomenclature these days.)
2563
e4a89c47
PH
2564PH/29 Installed patch from the Sieve maintainer that adds the options
2565 sieve_useraddress and sieve_subaddress to the redirect router.
2566
5ca2a9a1
PH
2567PH/30 In these circumstances:
2568 . Two addresses routed to the same list of hosts;
2569 . First host does not offer TLS;
2570 . First host accepts first address;
2571 . First host gives temporary error to second address;
2572 . Second host offers TLS and a TLS session is established;
2573 . Second host accepts second address.
2574 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2575 and peerdn, if requested) that were in fact used only for the second
2576 address.
7e8bec7a 2577
c688b954
PH
2578PH/31 When doing a callout as part of verifying an address, Exim was not paying
2579 attention to any local part prefix or suffix that was matched by the
2580 router that accepted the address. It now behaves in the same way as it
2581 does for delivery: the affixes are removed from the local part unless
2582 rcpt_include_affixes is set on the transport.
2583
fed77020
PH
2584PH/32 Add the sender address, as F=<...>, to the log line when logging a
2585 timeout during the DATA phase of an incoming message.
2586
7fe1560f
PH
2587PH/33 Sieve envelope tests were broken for match types other than :is. I have
2588 applied a patch sanctioned by the Sieve maintainer.
c688b954 2589
ebb6e6d5
PH
2590PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2591 the uid or gid is negative. A case of a negative gid caused this to be
2592 noticed. The fix allows for either to be negative.
2593
9c4e8f60
PH
2594PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2595 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2596 overlooked.
2597
2598PH/36 The change PH/12 above was broken. Fixed it.
2599
d7174846
PH
2600PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2601 the grounds that routing the same address twice would always produce the
2602 same answer. This might have been true once, but it is certainly no
2603 longer true now. Routing a child address may depend on the previous
2604 routing that produced that child. Some complicated redirection strategies
2605 went wrong when messages had multiple recipients, and made Exim's
2606 behaviour dependent on the order in which the addresses were given.
2607
2608 I have moved the duplicate checking until after the routing is complete.
2609 Exim scans the addresses that are assigned to local and remote
2610 transports, and removes any duplicates. This means that more work will be
2611 done, as duplicates will always all be routed, but duplicates are
2612 presumably rare, so I don't expect this is of any significance.
2613
2614 For deliveries to pipes, files, and autoreplies, the duplicate checking
2615 still happens during the routing process, since they are not going to be
2616 routed further.
2617
cfe75fc3
PH
2618PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2619 It corrects a timeout issue with spamd. This is Ian's comment: "The
2620 background is that sometimes spamd either never reads data from a
2621 connection it has accepted, or it never writes response data. The exiscan
2622 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2623 blindly assumes that writes won't block so it may never time out."
2624
be22d70e
PH
2625PH/39 Allow G after quota size as well as K and M.
2626
0612b098
PH
2627PH/40 The value set for $authenticated_id in an authenticator may not contain
2628 binary zeroes or newlines because the value is written to log lines and
2629 to spool files. There was no check on this. Now the value is run through
2630 the string_printing() function so that such characters are converted to
2631 printable escape sequences.
2632
2e0c1448
PH
2633PH/41 $message_linecount is a new variable that contains the total number of
2634 lines in the message. Compare $body_linecount, which is the count for the
2635 body only.
2636
447d236c
PH
2637PH/42 Exim no longer gives details of delivery errors for specific addresses in
2638 bounce and delay warning messages, except in certain special cases, which
2639 are as follows:
2640
2641 (a) An SMTP error message from a remote host;
2642 (b) A message specified in a :fail: redirection;
2643 (c) A message specified in a "fail" command in a system filter;
2644 (d) A message specified in a FAIL return from the queryprogram router;
2645 (e) A message specified by the cannot_route_message router option.
2646
2647 In these cases only, Exim does include the error details in bounce and
2648 warning messages. There are also a few cases where bland messages such
2649 as "unrouteable address" or "local delivery error" are given.
2650
d20976dc
PH
2651PH/43 $value is now also set for the "else" part of a ${run expansion.
2652
f656d135
PH
2653PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2654 being worked on, but at least Exim now implements the latest version to
2655 play with."
2656
2e2a30b4
PH
2657PH/45 In a pipe transport, although a timeout while waiting for the pipe
2658 process to complete was treated as a delivery failure, a timeout while
2659 writing the message to the pipe was logged, but erroneously treated as a
2660 successful delivery. Such timeouts include transport filter timeouts. For
2661 consistency with the overall process timeout, these timeouts are now
2662 treated as errors, giving rise to delivery failures by default. However,
2663 there is now a new Boolean option for the pipe transport called
2664 timeout_defer, which, if set TRUE, converts the failures into defers for
2665 both kinds of timeout. A transport filter timeout is now identified in
2666 the log output.
2667
9176e9f0
PH
2668PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2669 systems where "make" and "gmake" are different, calling "gmake" at top
2670 level broke things. I've arranged for the value of $(MAKE) to be passed
2671 from the Makefile to this script so that it can call the same version of
2672 "make".
2673
7982096b 2674
bbe902f0
PH
2675A note about Exim versions 4.44 and 4.50
2676----------------------------------------
2677
2678Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2679changes of various kinds. As a consequence, a big documentation update was
2680needed. This delayed the release for rather longer than seemed good, especially
2681in the light of a couple of (minor) security issues. Therefore, the changes
2682that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2683release. So 4.44 and 4.50 are in effect two different branches that both start
2684from 4.43.
2685
2686I have left the 4.50 change log unchanged; it contains all the changes since
26874.43. The change log for 4.44 is below; many of its items are identical to
2688those for 4.50. This seems to be the most sensible way to preserve the
2689historical information.
2690
2691
f7b63901 2692Exim version 4.50
495ae4b0
PH
2693-----------------
2694
5fe762f6
PH
2695 1. Minor wording change to the doc/README.SIEVE file.
2696
139059f6 2697 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2698 computation of the current number of files was incorrect.
495ae4b0 2699
7086e875
PH
2700 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2701 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2702 place.
2703
35af9f61
PH
2704 4. Give more explanation in the error message when the command for a transport
2705 filter fails to execute.
2706
b668c215
PH
2707 5. There are several places where Exim runs a non-Exim command in a
2708 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2709 was being done only for the command run by the queryprogram router. It is
2710 now done for all such subprocesses. The other cases are: ${run, transport
2711 filters, and the commands run by the lmtp and pipe transports.
2712
a494b1e1
PH
2713 6. Added CONFIGURE_GROUP build-time option.
2714
2715 7. Some older OS have a limit of 256 on the maximum number of file
2716 descriptors. Exim was using setrlimit() to set 1000 as a large value
2717 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2718 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2719
c5fcb476
PH
2720 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2721 was an oversight, and furthermore, ever since the addition of extra
2722 controls (e.g. 4.43/32), the checks on when to allow different forms of
2723 "control" were broken. There should now be diagnostics for all cases when a
2724 control that does not make sense is encountered.
2725
69358f02
PH
2726 9. Added the /retain_sender option to "control=submission".
2727
5be20824
PH
272810. $recipients is now available in the predata ACL (oversight).
2729
eb2c0248
PH
273011. Tidy the search cache before the fork to do a delivery from a message
2731 received from the command line. Otherwise the child will trigger a lookup
2732 failure and thereby defer the delivery if it tries to use (for example) a
2733 cached ldap connection that the parent has called unbind on.
2734
2a3eea10
PH
273512. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2736 of $address_data from the recipient verification was clobbered by the
2737 sender verification.
2738
273913. The value of address_data from a sender verification is now available in
2740 $sender_address_data in subsequent conditions in the ACL statement.
2741
23c7ff99
PH
274214. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2743
4deaf07d
PH
274415. Added a new option "connect=<time>" to callout options, to set a different
2745 connection timeout.
2746
926e1192
PH
274716. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2748 was its contents. (It was OK if the option was not defined at all.)
2749
650edc6f
PH
275017. A "Completed" log line is now written for messages that are removed from
2751 the spool by the -Mrm option.
2752
2c7db3f5
PH
275318. New variables $sender_verify_failure and $recipient_verify_failure contain
2754 information about exactly what failed.
2755
3d235903
PH
275619. Added -dd to debug only the daemon process.
2757
7c7ad977
PH
275820. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2759 handles timeouts, both on the server side and network timeouts. Renamed the
2760 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2761
981756db
PH
276221. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2763 It is now set to "smtps".
2764
d4eb88df
PH
276522. $host_address is now set to the target address during the checking of
2766 ignore_target_hosts.
2767
276823. When checking ignore_target_hosts for an ipliteral router, no host name was
2769 being passed; this would have caused $sender_host_name to have been used if
2770 matching the list had actually called for a host name (not very likely,
2771 since this list is usually IP addresses). A host name is now passed as
2772 "[x.x.x.x]".
2773
7d468ab8
PH
277424. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2775 code that specifies a non-restarting handler (typically sigaction() in
2776 modern systems) in an attempt to fix a rare and obscure crash bug.
2777
277825. Narrowed the window for a race in the daemon that could cause it to ignore
2779 SIGCHLD signals. This is not a major problem, because they are used only to
2780 wake it up if nothing else does.
2781
62c0818f
PH
278226. A malformed maildirsize file could cause Exim to calculate negative values
2783 for the mailbox size or file count. Odd effects could occur as a result.
2784 The maildirsize information is now recalculated if the size or filecount
2785 end up negative.
2786
26034054
PH
278727. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2788 support for a long time. Removed HAVE_SYS_VFS_H.
2789
af66f652
PH
279028. Installed the latest version of exipick from John Jetmore.
2791
90af77f4
PH
279229. In an address list, if the pattern was not a regular expression, an empty
2793 subject address (from a bounce message) matched only if the pattern was an
2794 empty string. Non-empty patterns were not even tested. This was the wrong
2795 because it is perfectly reasonable to use an empty address as part of a
2796 database query. An empty address is now tested by patterns that are
2797 lookups. However, all the other forms of pattern expect the subject to
2798 contain a local part and a domain, and therefore, for them, an empty
2799 address still always fails if the pattern is not itself empty.
2800
d8ef3577
PH
280130. Exim went into a mad DNS loop when attempting to do a callout where the
2802 host was specified on an smtp transport, and looking it up yielded more
2803 than one IP address.
2804
5cb8cbc6
PH
280531. Re-factored the code for checking spool and log partition space into a
2806 function that finds that data and another that does the check. The former
2807 is then used to implement four new variables: $spool_space, $log_space,
2808 $spool_inodes, and $log_inodes.
2809
14702f5b
PH
281032. The RFC2047 encoding function was originally intended for short strings
2811 such as real names; it was not keeping to the 75-character limit for
2812 encoded words that the RFC imposes. It now respects the limit, and
2813 generates multiple encoded words if necessary. To be on the safe side, I
2814 have increased the buffer size for the ${rfc2047: expansion operator from
2815 1024 to 2048 bytes.
2816
063b1e99
PH
281733. It is now permitted to omit both strings after an "if" condition; if the
2818 condition is true, the result is "true". As before, when the second string
2819 is omitted, a false condition yields an empty string. This makes it less
2820 cumbersome to write custom ACL and router conditions.
2821
652e1b65
PH
282234. Failure to deliver a bounce message always caused it to be frozen, even if
2823 there was an errors_to setting on the router. The errors_to setting is now
2824 respected.
2825
6f0c9a4f
PH
282635. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2827 canonical form (fully expanded) before being placed in
2828 $sender_host_address.
2829
33397d19
PH
283036. The table in the code that translates DNS record types into text (T_A to
2831 "A" for instance) was missing entries for NS and CNAME. It is just possible
2832 that this could have caused confusion if both these types were looked up
2833 for the same domain, because the text type is used as part of Exim's
2834 per-process caching. But the chance of anyone hitting this buglet seems
2835 very small.
2836
7bb56e1f
PH
283737. The dnsdb lookup has been extended in a number of ways.
2838
2839 (1) There is a new type, "zns", which walks up the domain tree until it
2840 finds some nameserver records. It should be used with care.
2841
ea3bc19b
PH
2842 (2) There is a new type, "mxh", which is like "mx" except that it returns
2843 just the host names, not the priorities.
2844
2845 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2846 looked up. The behaviour when one of the lookups defers can be
2847 controlled by a keyword.
7bb56e1f 2848
ea3bc19b 2849 (4) It is now possible to specify the separator character for use when
7bb56e1f 2850 multiple records are returned.
33397d19 2851
0bcb2a0e
PH
285238. The dnslists ACL condition has been extended: it is now possible to supply
2853 a list of IP addresses and/or domains to be looked up in a particular DNS
2854 domain.
2855
2ac0e484
PH
285639. Added log_selector=+queue_time_overall.
2857
4e1fde53
PH
285840. When running the queue in the test harness, wait just a tad after forking a
2859 delivery process, to get repeatability of debugging output.
2860
de365ded
PH
286141. Include certificate and key file names in error message when GnuTLS fails
2862 to set them up, because the GnuTLS error message doesn't include the name
2863 of the failing file when there is a problem reading it.
2864
f05da2e8
PH
286542. Allow both -bf and -bF in the same test run.
2866
d6453af2
PH
286743. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2868
f7b63901
PH
286944. The "Exiscan patch" is now merged into the mainline Exim source.
2870
287145. Sometimes the final signoff response after QUIT could fail to get
2872 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2873 < 0 before doing a fflush(). This bug looks as though it goes back to the
2874 introduction of TLS in release 3.20, but "sometimes" must have been rare
2875 because the tests only now provoked it.
2876
a444213a
PH
287746. Reset the locale to "C" after calling embedded Perl, in case it was changed
2878 (this can affect the format of dates).
2879
0ec020ea
PH
288047. exim_tidydb, when checking for the continued existence of a message for
2881 which it has found a message-specific retry record, was not finding
2882 messages that were in split spool directories. Consequently, it was
2883 deleting retry records that should have stayed in existence.
2884
b1206957
PH
288548. Steve fixed some bugs in eximstats.
2886
288749. The SPA authentication driver was not abandoning authentication and moving
2888 on to the next authenticator when an expansion was forced to fail,
2889 contradicting the general specification for all authenticators. Instead it
2890 was generating a temporary error. It now behaves as specified.
2891
26dd5a95
PH
289250. The default ordering of permitted cipher suites for GnuTLS was pessimal
2893 (the order specifies the preference for clients). The order is now AES256,
2894 AES128, 3DES, ARCFOUR128.
2895
343b2385
PH
289651. Small patch to Sieve code - explicitly set From: when generating an
2897 autoreply.
2898
1c5466b9
PH
289952. Exim crashed if a remote delivery caused a very long error message to be
2900 recorded - for instance if somebody sent an entire SpamAssassin report back
2901 as a large number of 550 error lines. This bug was coincidentally fixed by
2902 increasing the size of one of Exim's internal buffers (big_buffer) that
2903 happened as part of the Exiscan merge. However, to be on the safe side, I
2904 have made the code more robust (and fixed the comments that describe what
2905 is going on).
2906
55ee9ee3
PH
290753. Now that there can be additional text after "Completed" in log lines (if
2908 the queue_time_overall log selector is set), a one-byte patch to exigrep
2909 was needed to allow it to recognize "Completed" as not the last thing in
2910 the line.
2911
d38f8232
PH
291254. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2913 patch that reportedly fixes this has been added. I am not expert enough to
2914 create a test for it. This is what the patch creator wrote:
2915
2916 "I found a little strange behaviour of ldap code when working with
2917 Windows 2003 AD Domain, where users was placed in more than one
2918 Organization Units. When I tried to give exim partial DN, the exit code
2919 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2920 But simultaneously result of request was absolutely normal ldap result,
2921 so I produce this patch..."
2922
3295e65b
PH
2923 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2924 REFERENCE, so I have modified the code to exclude the patch when that macro
2925 is not defined.
2926
7102e136
PH
292755. Some experimental protocols are using DNS PTR records for new purposes. The
2928 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2929 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2930 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2931 CAN-2005-0021
7102e136 2932
3ca0ba97
PH
293356. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2934
c2bcbe20
PH
293557. Double the size of the debug message buffer (to 2048) so that more of very
2936 long debug lines gets shown.
2937
18ce445d
PH
293858. The exicyclog utility now does better if the number of log files to keep
2939 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2940
1f5b4c3d
PH
294159. Two changes related to the smtp_active_hostname option:
2942
2943 (1) $smtp_active_hostname is now available as a variable.
2944 (2) The default for smtp_banner uses $smtp_active_hostname instead
2945 of $primary_hostname.
2946
b975ba52
PH
294760. The host_aton() function is supposed to be passed a string that is known
2948 to be a valid IP address. However, in the case of IPv6 addresses, it was
2949 not checking this. This is a hostage to fortune. Exim now panics and dies
2950 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2951 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2952 components; fortuitously, this particular loophole had already been fixed
2953 by change 4.50/55 above.
2954
2955 If there are any other similar loopholes, the new check in host_aton()
2956 itself should stop them being exploited. The report I received stated that
2957 data on the command line could provoke the exploit when Exim was running as
2958 exim, but did not say which command line option was involved. All I could
2959 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2960 running as the user.
ea3a6f44 2961 CAN-2005-0021
85b87bc2
PH
2962
296361. There was a buffer overflow vulnerability in the SPA authentication code
2964 (which came originally from the Samba project). I have added a test to the
2965 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2966 CAN-2005-0022
b975ba52 2967
17ffcae7
PH
296862. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2969 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2970
d95f9fdb
PH
297163. The daemon start-up calls getloadavg() while still root for those OS that
2972 need the first call to be done as root, but it missed one case: when
2973 deliver_queue_load_max is set with deliver_drop_privilege. This is
2974 necessary for the benefit of the queue runner, because there is no re-exec
2975 when deliver_drop_privilege is set.
2976
86b8287f
PH
297764. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2978 This has been fixed.
2979
60dc5e56
PH
298065. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2981 was in use, was not putting the data itself into the right store pool;
2982 consequently, it could be overwritten for a subsequent message in the same
2983 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2984 the caching.)
2985
533244af
PH
298666. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2987
a5a28604
PH
298867. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2989 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2990 the function were treating the return as a boolean value, which happened to
2991 work because 0=false and not-0=true, but is not correct code.
2992
7e634d24
PH
299368. The host_aton() function was not handling scoped IPv6 addresses (those
2994 with, for example, "%eth0" on the end) correctly.
2995
3e11c26b
PH
299669. Fixed some compiler warnings in acl.c for the bitmaps specified with
2997 negated items (that is, ~something) in unsigned ints. Some compilers
2998 apparently mutter when there is no cast.
2999
6729cf78
PH
300070. If an address verification called from an ACL failed, and did not produce a
3001 user-specific message (i.e. there was only a "system" message), nothing was
3002 put in $acl_verify_message. In this situation, it now puts the system
3003 message there.
3004
00f00ca5
PH
300571. Change 4.23/11 added synchronization checking at the start of an SMTP
3006 session; change 4.31/43 added the unwanted input to the log line - except
3007 that it did not do this in the start of session case. It now does.
3008
c9bdd01c
PH
300972. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3010 This is wrong and can cause the other end to generate a synchronization
3011 error if it is another Exim or anything else that does the synchronization
3012 check. A QUIT command is no longer sent after a timeout.
3013
d43194df
PH
301473. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3015 during host lookups.
3016
fe5b5d0b
PH
301774. The defer_ok option of callout verification was not working if it was used
3018 when verifying addresses in header lines, that is, for this case:
3019
3020 verify = header_sender/callout=defer_ok
3021
76a2d7ba
PH
302275. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3023 those file descriptors could be used for SMTP connections. If anything
3024 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3025 could be sent to the SMTP client, causing chaos. The daemon now opens
3026 stdin, stdout, and stderr to /dev/null when it puts itself into the
3027 background.
3028
302976. Arrange for output from Perl's "warn" command to be written to Exim's main
3030 log by default. The user can override this with suitable Perl magic.
3031
04f7d5b9
PH
303277. The use of log_message on a "discard" ACL verb, which is supposed to add to
3033 the log message when discard triggers, was not working for the DATA ACL or
3034 for the non-SMTP ACL.
3035
bc60667e
PH
303678. Error message wording change in sieve.c.
3037
bb6e88ff
PH
303879. If smtp_accept_max_per_host was set, the number of connections could be
3039 restricted to fewer than expected, because the daemon was trying to set up
3040 a new connection before checking whether the processes handling previous
3041 connections had finished. The check for completed processes is now done
3042 earlier. On busy systems, this bug wouldn't be noticed because something
3043 else would have woken the daemon, and it would have reaped the completed
3044 process earlier.
3045
1e70f85b
PH
304680. If a message was submitted locally by a user whose login name contained one
3047 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3048 It caused a spool format error. I have fixed the spool reading code. A
3049 related problem was that the "from" clause in the Received: line became
3050 illegal because of the space(s). It is now covered by ${quote_local_part.
3051
305281. Included the latest eximstats from Steve (adds average sizes to HTML Top
3053 tables).
3054
4e01f9d6
PH
305582. Updated OS/Makefile-AIX as per message from Mike Meredith.
3056
1ee1cef2
PH
305783. Patch from Sieve maintainer to fix unterminated string problem in
3058 "vacation" handling.
3059
6e2b4ccc
PH
306084. Some minor changes to the Linux configuration files to help with other
3061 OS variants using glibc.
3062
8e669ac1
PH
306385. One more patch for Sieve to update vacation handling to latest spec.
3064
495ae4b0 3065
bbe902f0
PH
3066----------------------------------------------------
3067See the note above about the 4.44 and 4.50 releases.
3068----------------------------------------------------
3069
3070
3071Exim version 4.44
3072-----------------
3073
3074 1. Change 4.43/35 introduced a bug that caused file counts to be
3075 incorrectly computed when quota_filecount was set in an appendfile
3076 transport
3077
3078 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3079 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3080 place.
3081
3082 3. Give more explanation in the error message when the command for a transport
3083 filter fails to execute.
3084
3085 4. There are several places where Exim runs a non-Exim command in a
3086 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3087 was being done only for the command run by the queryprogram router. It is
3088 now done for all such subprocesses. The other cases are: ${run, transport
3089 filters, and the commands run by the lmtp and pipe transports.
3090
3091 5. Some older OS have a limit of 256 on the maximum number of file
3092 descriptors. Exim was using setrlimit() to set 1000 as a large value
3093 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3094 systems. I've change it so that if it can't get 1000, it tries for 256.
3095
3096 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3097 was an oversight, and furthermore, ever since the addition of extra
3098 controls (e.g. 4.43/32), the checks on when to allow different forms of
3099 "control" were broken. There should now be diagnostics for all cases when a
3100 control that does not make sense is encountered.
3101
3102 7. $recipients is now available in the predata ACL (oversight).
3103
3104 8. Tidy the search cache before the fork to do a delivery from a message
3105 received from the command line. Otherwise the child will trigger a lookup
3106 failure and thereby defer the delivery if it tries to use (for example) a
3107 cached ldap connection that the parent has called unbind on.
3108
3109 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3110 of $address_data from the recipient verification was clobbered by the
3111 sender verification.
3112
311310. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3114 was its contents. (It was OK if the option was not defined at all.)
3115
311611. A "Completed" log line is now written for messages that are removed from
3117 the spool by the -Mrm option.
3118
311912. $host_address is now set to the target address during the checking of
3120 ignore_target_hosts.
3121
312213. When checking ignore_target_hosts for an ipliteral router, no host name was
3123 being passed; this would have caused $sender_host_name to have been used if
3124 matching the list had actually called for a host name (not very likely,
3125 since this list is usually IP addresses). A host name is now passed as
3126 "[x.x.x.x]".
3127
312814. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3129 code that specifies a non-restarting handler (typically sigaction() in
3130 modern systems) in an attempt to fix a rare and obscure crash bug.
3131
313215. Narrowed the window for a race in the daemon that could cause it to ignore
3133 SIGCHLD signals. This is not a major problem, because they are used only to
3134 wake it up if nothing else does.
3135
313616. A malformed maildirsize file could cause Exim to calculate negative values
3137 for the mailbox size or file count. Odd effects could occur as a result.
3138 The maildirsize information is now recalculated if the size or filecount
3139 end up negative.
3140
314117. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3142 support for a long time. Removed HAVE_SYS_VFS_H.
3143
ea3a6f44 314418. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3145
314619. Allow an empty sender to be matched against a lookup in an address list.
3147 Previously the only cases considered were a regular expression, or an
3148 empty pattern.
3149
315020. Exim went into a mad DNS lookup loop when doing a callout where the
3151 host was specified on the transport, if the DNS lookup yielded more than
3152 one IP address.
3153
ea3a6f44
NM
315421. The RFC2047 encoding function was originally intended for short strings
3155 such as real names; it was not keeping to the 75-character limit for
3156 encoded words that the RFC imposes. It now respects the limit, and
3157 generates multiple encoded words if necessary. To be on the safe side, I
3158 have increased the buffer size for the ${rfc2047: expansion operator from
3159 1024 to 2048 bytes.
bbe902f0 3160
ea3a6f44
NM
316122. Failure to deliver a bounce message always caused it to be frozen, even if
3162 there was an errors_to setting on the router. The errors_to setting is now
3163 respected.
bbe902f0
PH
3164
316523. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3166 canonical form (fully expanded) before being placed in
3167 $sender_host_address.
3168
316924. Updated eximstats to version 1.33
3170
ea3a6f44
NM
317125. Include certificate and key file names in error message when GnuTLS fails
3172 to set them up, because the GnuTLS error message doesn't include the name
3173 of the failing file when there is a problem reading it.
bbe902f0
PH
3174
317526. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3176 As per change 25.
bbe902f0 3177
ea3a6f44
NM
317827. Reset the locale to "C" after calling embedded Perl, in case it was changed
3179 (this can affect the format of dates).
bbe902f0 3180
ea3a6f44
NM
318128. exim_tidydb, when checking for the continued existence of a message for
3182 which it has found a message-specific retry record, was not finding
3183 messages that were in split spool directories. Consequently, it was
3184 deleting retry records that should have stayed in existence.
bbe902f0
PH
3185
318629. eximstats updated to version 1.35
3187 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3188 1.35 - bugfix such that pie charts by volume are generated correctly
3189
ea3a6f44
NM
319030. The SPA authentication driver was not abandoning authentication and moving
3191 on to the next authenticator when an expansion was forced to fail,
3192 contradicting the general specification for all authenticators. Instead it
3193 was generating a temporary error. It now behaves as specified.
bbe902f0 3194
ea3a6f44
NM
319531. The default ordering of permitted cipher suites for GnuTLS was pessimal
3196 (the order specifies the preference for clients). The order is now AES256,
3197 AES128, 3DES, ARCFOUR128.
bbe902f0 3198
ea3a6f44
NM
319931. Small patch to Sieve code - explicitly set From: when generating an
3200 autoreply.
bbe902f0 3201
ea3a6f44
NM
320232. Exim crashed if a remote delivery caused a very long error message to be
3203 recorded - for instance if somebody sent an entire SpamAssassin report back
3204 as a large number of 550 error lines. This bug was coincidentally fixed by
3205 increasing the size of one of Exim's internal buffers (big_buffer) that
3206 happened as part of the Exiscan merge. However, to be on the safe side, I
3207 have made the code more robust (and fixed the comments that describe what
3208 is going on).
bbe902f0 3209
ea3a6f44
NM
321033. Some experimental protocols are using DNS PTR records for new purposes. The
3211 keys for these records are domain names, not reversed IP addresses. The
3212 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3213 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3214 CAN-2005-0021
3215
ea3a6f44
NM
321634. The host_aton() function is supposed to be passed a string that is known
3217 to be a valid IP address. However, in the case of IPv6 addresses, it was
3218 not checking this. This is a hostage to fortune. Exim now panics and dies
3219 if the condition is not met. A case was found where this could be provoked
3220 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3221 components; fortuitously, this particular loophole had already been fixed
3222 by change 4.50/55 or 4.44/33 above.
3223
3224 If there are any other similar loopholes, the new check in host_aton()
3225 itself should stop them being exploited. The report I received stated that
3226 data on the command line could provoke the exploit when Exim was running as
3227 exim, but did not say which command line option was involved. All I could
3228 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3229 running as the user.
bbe902f0
PH
3230 CAN-2005-0021
3231
ea3a6f44
NM
323235. There was a buffer overflow vulnerability in the SPA authentication code
3233 (which came originally from the Samba project). I have added a test to the
3234 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3235 CAN-2005-0022
3236
ea3a6f44
NM
323736. The daemon start-up calls getloadavg() while still root for those OS that
3238 need the first call to be done as root, but it missed one case: when
3239 deliver_queue_load_max is set with deliver_drop_privilege. This is
3240 necessary for the benefit of the queue runner, because there is no re-exec
3241 when deliver_drop_privilege is set.
bbe902f0 3242
ea3a6f44
NM
324337. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3244 was in use, was not putting the data itself into the right store pool;
3245 consequently, it could be overwritten for a subsequent message in the same
3246 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3247 the caching.)
bbe902f0 3248
ea3a6f44
NM
324938. Sometimes the final signoff response after QUIT could fail to get
3250 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3251 < 0 before doing a fflush(). This bug looks as though it goes back to the
3252 introduction of TLS in release 3.20, but "sometimes" must have been rare
3253 because the tests only now provoked it.
bbe902f0
PH
3254
3255
495ae4b0
PH
3256Exim version 4.43
3257-----------------
3258
3259 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3260 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3261 Now it returns an integer. A number of calls were still expecting a T/F
3262 return. Fortuitously, in all cases, the tests worked in OK situations,
3263 which is the norm. However, things would have gone wrong on any write
3264 failures on the smtp file descriptor. This function is used when sending
3265 messages over SMTP and also when doing verify callouts.
3266
3267 2. When Exim is called to do synchronous delivery of a locally submitted
3268 message (the -odf or -odi options), it no longer closes stderr before doing
3269 the delivery.
3270
3271 3. Implemented the mua_wrapper option.
3272
3273 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3274
3275 5. Implemented the functions header_remove(), header_testname(),
3276 header_add_at_position(), and receive_remove_recipient(), and exported them
3277 to local_scan().
3278
3279 6. If an ACL "warn" statement specified the addition of headers, Exim already
3280 inserted X-ACL-Warn: at the start if there was no header name. However, it
3281 was not making this test for the second and subsequent header lines if
3282 there were newlines in the string. This meant that an invalid header could
3283 be inserted if Exim was badly configured.
3284
3285 7. Allow an ACL "warn" statement to add header lines at the start or after all
3286 the Received: headers, as well as at the end.
3287
3288 8. Added the rcpt_4xx retry error code.
3289
3290 9. Added postmaster_mailfrom=xxx to callout verification option.
3291
329210. Added mailfrom=xxxx to the callout verification option, for verify=
3293 header_sender only.
3294
329511. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3296 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3297
329812. Inserted some casts to stop certain compilers warning when using pointer
3299 differences as field lengths or precisions in printf-type calls (mostly
3300 affecting debugging statements).
3301
330213. Added optional readline() support for -be (dynamically loaded).
3303
330414. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3305 same clock tick as a message's arrival, so that its received time was the
3306 same as the "first fail" time on the retry record, and that message
3307 remained on the queue past the ultimate address timeout, every queue runner
3308 would try a delivery (because it was past the ultimate address timeout) but
3309 after another failure, the ultimate address timeout, which should have then
3310 bounced the address, did not kick in. This was a "< instead of <=" error;
3311 in most cases the first failure would have been in the next clock tick
3312 after the received time, and all would be well.
3313
331415. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3315 being recognized when the domain list was tested by the match_domain
3316 condition in an expansion string.
3317
331816. Added the ${str2b64: operator.
3319
332017. Exim was always calling setrlimit() to set a large limit for the number of
3321 processes, without checking whether the existing limit was already
3322 adequate. (It did check for the limit on file descriptors.) Furthermore,
3323 errors from getrlimit() and setrlimit() were being ignored. Now they are
3324 logged to the main and panic logs, but Exim does carry on, to try to do its
3325 job under whatever limits there are.
3326
332718. Imported PCRE 5.0.
3328
332919. Trivial typo in log message " temporarily refused connection" (the leading
3330 space).
3331
333220. If the log selector return_path_on_delivery was set and an address was
3333 redirected to /dev/null, the delivery process crashed because it assumed
3334 that a return path would always be set for a "successful" delivery. In this
3335 case, the whole delivery is bypassed as an optimization, and therefore no
3336 return path is set.
3337
333821. Internal re-arrangement: the function for sending a challenge and reading
3339 a response while authentication was assuming a zero-terminated challenge
3340 string. It's now changed to take a pointer and a length, to allow for
3341 binary data in such strings.
3342
334322. Added the cyrus_sasl authenticator (code supplied by MBM).
3344
334523. Exim was not respecting finduser_retries when seeking the login of the
3346 uid under which it was called; it was always trying 10 times. (The default
3347 setting of finduser_retries is zero.) Also, it was sleeping after the final
3348 failure, which is pointless.
3349
335024. Implemented tls_on_connect_ports.
3351
335225. Implemented acl_smtp_predata.
3353
335426. If the domain in control=submission is set empty, Exim assumes that the
3355 authenticated id is a complete email address when it generates From: or
3356 Sender: header lines.
3357
335827. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3359 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3360 chown and chgrp in /bin and hostname in /usr/bin.
3361
336228. Exim was keeping the "process log" file open after each use, just as it
3363 does for the main log. This opens the possibility of it remaining open for
3364 long periods when the USR1 signal hits a daemon. Occasional processlog
3365 errors were reported, that could have been caused by this. Anyway, it seems
3366 much more sensible not to leave this file open at all, so that is what now
3367 happens.
3368
336929. The long-running daemon process does not normally write to the log once it
3370 has entered its main loop, and it closes the log before doing so. This is
3371 so that log files can straightforwardly be renamed and moved. However,
3372 there are a couple of unusual error situations where the daemon does write
3373 log entries, and I had neglected to close the log afterwards.
3374
337530. The text of an SMTP error response that was received during a remote
3376 delivery was being truncated at 512 bytes. This is too short for some of
3377 the long messages that one sometimes sees. I've increased the limit to
3378 1024.
3379
338031. It is now possible to make retry rules that apply only when a message has a
3381 specific sender, in particular, an empty sender.
3382
338332. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3384 it possible to be selective about when SMTP synchronization is enforced.
3385
338633. Added "control = caseful_local_part" and "control = "caselower_local_part".
3387
338832. Implemented hosts_connection_nolog.
3389
339033. Added an ACL for QUIT.
3391
339234. Setting "delay_warning=" to disable warnings was not working; it gave a
3393 syntax error.
3394
339535. Added mailbox_size and mailbox_filecount to appendfile.
3396
339736. Added control = no_multiline_responses to ACLs.
3398
339937. There was a bug in the logic of the code that waits for the clock to tick
3400 in the case where the clock went backwards by a substantial amount such
3401 that the microsecond fraction of "now" was more than the microsecond
3402 fraction of "then" (but the whole seconds number was less).
3403
340438. Added support for the libradius Radius client library this is found on
3405 FreeBSD (previously only the radiusclient library was supported).
3406
3407
3408Exim version 4.42
3409-----------------
3410
3411 1. When certain lookups returned multiple values in the form name=value, the
3412 quoting of the values was not always being done properly. Specifically:
3413 (a) If the value started with a double quote, but contained no whitespace,
3414 it was not quoted.
3415 (b) If the value contained whitespace other than a space character (i.e.
3416 tabs or newlines or carriage returns) it was not quoted.
3417 This fix has been applied to the mysql and pgsql lookups by writing a
3418 separate quoting function and calling it from the lookup code. The fix
3419 should probably also be applied to nisplus, ibase and oracle lookups, but
3420 since I cannot test any of those, I have not disturbed their existing code.
3421
3422 2. A hit in the callout cache for a specific address caused a log line with no
3423 reason for rejecting RCPT. Now it says "Previous (cached) callout
3424 verification failure".
3425
3426 3. There was an off-by-one bug in the queryprogram router. An over-long
3427 return line was truncated at 256 instead of 255 characters, thereby
3428 overflowing its buffer with the terminating zero. As well as fixing this, I
3429 have increased the buffer size to 1024 (and made a note to document this).
3430
3431 4. If an interru