Workround compile error with old PCRE versions
[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
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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
12
8c07b69f
TF
13Exim version 4.74
14-----------------
15
16TF/01 Failure to get a lock on a hints database can have serious
17 consequences so log it to the panic log.
18
c0ea85ab
TF
19TF/02 Log LMTP confirmation messages in the same way as SMTP,
20 controlled using the smtp_confirmation log selector.
21
0761d44e
TF
22TF/03 Include the error message when we fail to unlink a spool file.
23
0a349494
PP
24DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
25 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
26 for maintaining out-of-tree patches for some time.
27
28PP/01 Bugzilla 139: Documentation and portability issues.
29 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
30 Handle per-OS dynamic-module compilation flags.
31
fea24b2e
PP
32PP/02 Let /dev/null have normal permissions.
33 The 4.73 fixes were a little too stringent and complained about the
34 permissions on /dev/null. Exempt it from some checks.
35 Reported by Andreas M. Kirchwitz.
36
6545de78
PP
37PP/03 Report version information for many libraries, including
38 Exim version information for dynamically loaded libraries. Created
39 version.h, now support a version extension string for distributors
40 who patch heavily. Dynamic module ABI change.
41
1670ef10
PP
42PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
43 privilege escalation vulnerability whereby the Exim run-time user
44 can cause root to append content of the attacker's choosing to
45 arbitrary files.
46
c0886197
PP
47PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
48 (Wolfgang Breyha)
49
b7487bce
PP
50PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
51 If dropping privileges for untrusted macros, we disabled normal logging
52 on the basis that it would fail; for the Exim run-time user, this is not
53 the case, and it resulted in successful deliveries going unlogged.
54 Fixed. Reported by Andreas Metzler.
55
8c07b69f 56
97fd1e48 57Exim version 4.73
ed7f7860 58-----------------
97fd1e48
PP
59
60PP/01 Date: & Message-Id: revert to normally being appended to a message,
61 only prepend for the Resent-* case. Fixes regression introduced in
62 Exim 4.70 by NM/22 for Bugzilla 607.
63
6901c596
PP
64PP/02 Include check_rfc2047_length in configure.default because we're seeing
65 increasing numbers of administrators be bitten by this.
66
a8c8d6b5
JJ
67JJ/01 Added DISABLE_DKIM and comment to src/EDITME
68
77bb000f
PP
69PP/03 Bugzilla 994: added openssl_options main configuration option.
70
a29e5231
PP
71PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
72
ec5a0394 73PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 74
55c75993
PP
75PP/06 Adjust NTLM authentication to handle SASL Initial Response.
76
453a6645 77PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
78 without a peer certificate, leading to a segfault because of an
79 assumption that peers always have certificates. Be a little more
453a6645
PP
80 paranoid. Problem reported by Martin Tscholak.
81
8544e77a
PP
82PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
83 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
84 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
85 CL also introduces -bmalware, various -d+acl logging additions and
86 more caution in buffer sizes.
8544e77a 87
83e029d5
PP
88PP/09 Implemented reverse_ip expansion operator.
89
ed7f7860
PP
90PP/10 Bugzilla 937: provide a "debug" ACL control.
91
7d9f747b
PP
92PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
93
4b2241d2
PP
94PP/12 Bugzilla 973: Implement --version.
95
10385c15
PP
96PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
97
dbc4b90d
PP
98PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
99
532be449
PP
100PP/15 Bugzilla 816: support multiple condition rules on Routers.
101
6a8de854 102PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
103 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
104 ignore trailing whitespace.
6a8de854 105
5dc43717
JJ
106JJ/02 prevent non-panic DKIM error from being sent to paniclog
107
108JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
109 "exim" to be used
55c75993 110
3346ab01
PP
111PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
112 Notification from Dr Andrew Aitchison.
113
491fab4c
PP
114PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
115 ExtendedDetectionInfo response format.
116 Notification from John Horne.
117
13eb9497
PP
118PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
119 compatible.
120
121PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
122 XSL and documented dependency on system catalogs, with examples of how
123 it normally works.
124
7f36d675
DW
125DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
126 access.
127
c1d94452
DW
128DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
129 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
130 configuration file which is writeable by the Exim user or group.
131
e2f5dc15
DW
132DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
133 of configuration files to cover files specified with the -C option if
134 they are going to be used with root privileges, not just the default
135 configuration file.
136
cd25e41d
DW
137DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
138 option (effectively making it always true).
139
261dc43e
DW
140DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
141 files to be used while preserving root privileges.
142
fa32850b
DW
143DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
144 that rogue child processes cannot use them.
145
79d4bc3d
PP
146PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
147 run-time user, instead of root.
148
2cfd3221
PP
149PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
150 Exim run-time user without dropping privileges.
151
fb08281f
DW
152DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
153 result string, instead of calling string_vformat() twice with the same
154 arguments.
3346ab01 155
74935b98
DW
156DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
157 for other users. Others should always drop root privileges if they use
158 -C on the command line, even for a whitelisted configure file.
159
90b6341f
DW
160DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
161
57730b52
ML
162NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
163
66581d1e 164
465e92cf
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165Exim version 4.72
166-----------------
167
453a6645
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168JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
169 $data_path, and $header_path variables; fixed documentation bugs and
170 typos
465e92cf 171
453a6645
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172JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
173 exipick to access non-standard spools, including the "frozen" queue
174 (Finput)
edae0343 175
9bd3e22c
NM
176NM/01 Bugzilla 965: Support mysql stored procedures.
177 Patch from Alain Williams
178
bb576ff7
NM
179NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
180
5a1a5845
NM
181NM/03 Bugzilla 955: Documentation fix for max_rcpts.
182 Patch from Andreas Metzler
183
981a9fad
NM
184NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
185 Patch from Kirill Miazine
186
7fc497ee
NM
187NM/05 Bugzilla 671: Added umask to procmail example.
188
1a41defa
JJ
189JJ/03 installed exipick 20100323.0, fixing doc bug
190
a466095c 191NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 192 directory. Notification and patch from Dan Rosenberg.
a466095c 193
94a6bd0b
NM
194TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
195
196TK/02 Improve log output when DKIM signing operation fails.
197
198MH/01 Treat the transport option dkim_domain as a colon separated
199 list, not as a single string, and sign the message with each element,
200 omitting multiple occurences of the same signer.
201
c1b141a8
NM
202NM/07 Null terminate DKIM strings, Null initialise DKIM variable
203 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 204
b26eacf1 205NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
206 Patch by Simon Arlott
207
179c5980 208PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 209 MBX locking. Notification from Dan Rosenberg.
179c5980 210
9bd3e22c 211
7c6d71af
NM
212Exim version 4.71
213-----------------
214
7d9f747b 215TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 216
f013fb92
NM
217NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
218
0eb8eedd
NM
219NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
220
663ee6d9
NM
221NM/03 Bugzilla 847: Enable DNSDB lookup by default.
222
177ebd9b
NM
223NM/04 Bugzilla 915: Flag broken perl installation during build.
224
7c6d71af 225
210f147e
NM
226Exim version 4.70
227-----------------
228
cdd3bb85 229TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 230 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
231
232TK/02 Write list of recipients to X-Envelope-Sender header when building
233 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 234 Hirsch).
cdd3bb85
TK
235
236TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
237 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 238 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
239
240TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
241 by Mark Daniel Reidel <mr@df.eu>.
242
210f147e
NM
243NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
244 When building exim an external PCRE library is now needed -
245 PCRE is a system library on the majority of modern systems.
246 See entry on PCRE_LIBS in EDITME file.
247
deafd5b3
NM
248NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
249 conversation. Added nologin parameter to request.
7d9f747b 250 Patch contributed by Kirill Miazine.
deafd5b3 251
089793a4
TF
252TF/01 Do not log submission mode rewrites if they do not change the address.
253
5f16ca82
TF
254TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
255
dae9d94e 256NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 257 log files in place. Contributed by Roberto Lima.
dae9d94e 258
7d9f747b 259NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 260
06864c44
TF
261TF/03 Bugzilla 615: When checking the local_parts router precondition
262 after a local_part_suffix or local_part_prefix option, Exim now
263 does not use the address's named list lookup cache, since this
264 contains cached lookups for the whole local part.
265
65a7d8c3 266NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 267 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 268
23510047 269TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 270
7d9f747b 271NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 272
7d8eec3a 273NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 274 Patch provided by Jan Srzednicki.
6c588e74 275
89dec7b6
TF
276TF/05 Leading white space used to be stripped from $spam_report which
277 wrecked the formatting. Now it is preserved.
5f28a6e8 278
a99de90c
TF
279TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
280 that they are available at delivery time.
281
e2803e40
TF
282TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
283
7199e1ee
TF
284TF/08 TLS error reporting now respects the incoming_interface and
285 incoming_port log selectors.
286
e276e04b
TF
287TF/09 Produce a more useful error message if an SMTP transport's hosts
288 setting expands to an empty string.
289
ce552449 290NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 291 Patch provided by Phil Pennock.
ce552449 292
e765a0f1 293NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 294 Patch provided by Richard Godbee.
e765a0f1 295
4f054c63 296NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 297 acl_smtp_notquit, added index entry.
4f054c63 298
7d9f747b
PP
299NM/09 Bugzilla 787: Potential buffer overflow in string_format.
300 Patch provided by Eugene Bujak.
24c929a2 301
7d9f747b
PP
302NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
303 accept(). Patch provided by Maxim Dounin.
cf73943b 304
b52bc06e 305NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 306 Patch provided by Phil Pennock.
b52bc06e 307
447de4b0
NM
308NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
309
4c69d561 310NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 311 Patch provided by Brad "anomie" Jorsch.
4c69d561 312
d5c39246 313NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 314 Patch provided by Dean Brooks.
9b989985 315
0b23848a
TK
316TK/05 Add native DKIM support (does not depend on external libraries).
317
8f3414a1 318NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 319 Patch provided by Graeme Fowler.
e2aacdfd 320
fb6f955d
NM
321NM/16 Bugzilla 851: Documentation example syntax fix.
322
323NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 324
7d9f747b
PP
325NM/18 Bugzilla 894: Fix issue with very long lines including comments in
326 lsearch.
dbb0bf41 327
7d9f747b
PP
328NM/19 Bugzilla 745: TLS version reporting.
329 Patch provided by Phil Pennock.
f3766eb5 330
7d9f747b
PP
331NM/20 Bugzilla 167: bool: condition support.
332 Patch provided by Phil Pennock.
36f12725 333
7d9f747b
PP
334NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
335 clients. Patch provided by Phil Pennock.
e6060e2c 336
7d9f747b
PP
337NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
338 Patch provided by Brad "anomie" Jorsch.
5eb690a1 339
7d9f747b
PP
340NM/23 Bugzilla 687: Fix misparses in eximstats.
341 Patch provided by Heiko Schlittermann.
d5c13d66 342
7d9f747b
PP
343NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
344 Patch provided by Heiko Schlittermann.
b2335c0b 345
7d9f747b 346NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 347 plus update to original patch.
f4cd9433 348
7d9f747b 349NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 350
7d9f747b
PP
351NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
352 Patch provided by David Brownlee.
8dc71ab3 353
7d9f747b 354NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 355
7d9f747b 356NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 357
7d9f747b 358NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 359
7d9f747b 360NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 361
17792b53 362NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 363 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 364
7d9f747b
PP
365NM/33 Bugzilla 898: Transport filter timeout fix.
366 Patch by Todd Rinaldo.
52383f8f 367
7d9f747b
PP
368NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
369 Patch by Serge Demonchaux.
5ca6d115 370
7d9f747b
PP
371NM/35 Bugzilla 39: Base64 decode bug fixes.
372 Patch by Jakob Hirsch.
baee9eee 373
7d9f747b 374NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 375
7d9f747b 376NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 377
7d9f747b 378NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 379
7d9f747b 380NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 381
deafd5b3 382
47db1125
NM
383Exim version 4.69
384-----------------
385
4b3504d0
TK
386TK/01 Add preliminary DKIM support. Currently requires a forked version of
387 ALT-N's libdkim that I have put here:
388 http://duncanthrax.net/exim-experimental/
389
390 Note to Michael Haardt: I had to rename some vars in sieve.c. They
391 were called 'true' and it seems that C99 defines that as a reserved
392 keyword to be used with 'bool' variable types. That means you could
393 not include C99-style headers which use bools without triggering
394 build errors in sieve.c.
395
81ea09ca
NM
396NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
397 as mailq or other aliases. Changed the --help handling significantly
398 to do whats expected. exim_usage() emits usage/help information.
399
f13cddcb
SC
400SC/01 Added the -bylocaldomain option to eximstats.
401
7d9f747b 402NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 403
7d9f747b 404NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 405
7d9f747b 406NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
407
408
eb4c0de6
PH
409Exim version 4.68
410-----------------
411
412PH/01 Another patch from the Sieve maintainer.
413
6a3bceb1
PH
414PH/02 When an IPv6 address is converted to a string for single-key lookup
415 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
416 dots are used instead of colons so that keys in lsearch files need not
417 contain colons. This was done some time before quoting was made available
418 in lsearch files. However, iplsearch files do require colons in IPv6 keys
419 (notated using the quote facility) so as to distinguish them from IPv4
420 keys. This meant that lookups for IP addresses in host lists did not work
421 for iplsearch lookups.
422
423 This has been fixed by arranging for IPv6 addresses to be expressed with
424 colons if the lookup type is iplsearch. This is not incompatible, because
425 previously such lookups could never work.
426
427 The situation is now rather anomolous, since one *can* have colons in
428 ordinary lsearch keys. However, making the change in all cases is
429 incompatible and would probably break a number of configurations.
430
2e30fa9d
TK
431TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
432 version.
433
0806a9c5
MH
434MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
435 conversion specification without a maximum field width, thereby enabling
436 a rogue spamd server to cause a buffer overflow. While nobody in their
437 right mind would setup Exim to query an untrusted spamd server, an
438 attacker that gains access to a server running spamd could potentially
439 exploit this vulnerability to run arbitrary code as the Exim user.
440
ae276964
TK
441TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
442 $primary_hostname instead of what libspf2 thinks the hosts name is.
443
0f2cbd1b
MH
444MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
445 a directory entry by the name of the lookup key. Previously, if a
446 symlink pointed to a non-existing file or a file in a directory that
447 Exim lacked permissions to read, a lookup for a key matching that
448 symlink would fail. Now it is enough that a matching directory entry
449 exists, symlink or not. (Bugzilla 503.)
450
2b85bce7
PH
451PH/03 The body_linecount and body_zerocount variables are now exported in the
452 local_scan API.
453
93655c46
PH
454PH/04 Added the $dnslist_matched variable.
455
6c512171
PH
456PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
457 This means they are set thereafter only if the connection becomes
458 encrypted.
459
460PH/06 Added the client_condition to authenticators so that some can be skipped
461 by clients under certain conditions.
462
aa6dc513
PH
463PH/07 The error message for a badly-placed control=no_multiline_responses left
464 "_responses" off the end of the name.
465
a96603a0
PH
466PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
467
8f240103
PH
468PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
469 (without spaces) instead of just copying the configuration text.
470
471PH/10 Added the /noupdate option to the ratelimit ACL condition.
472
d677b2f2
PH
473PH/11 Added $max_received_linelength.
474
d52120f2
PH
475PH/12 Added +ignore_defer and +include_defer to host lists.
476
64f2600a
PH
477PH/13 Installed PCRE version 7.2. This needed some changes because of the new
478 way in which PCRE > 7.0 is built.
479
8669f003
PH
480PH/14 Implemented queue_only_load_latch.
481
a4dc33a8
PH
482PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
483 MAIL command. The effect was to mangle the value on 64-bit systems.
484
d6a60c0f
PH
485PH/16 Another patch from the Sieve maintainer.
486
8f128379
PH
487PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
488
8932dffe
PH
489PH/18 If a system quota error occurred while trying to create the file for
490 a maildir delivery, the message "Mailbox is full" was not appended to the
491 bounce if the delivery eventually timed out. Change 4.67/27 below applied
492 only to a quota excession during the actual writing of the file.
d6a60c0f 493
ddea74fa 494PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
495 characters?) which causes problems in log lines. The DN values are now
496 passed through string_printing() before being added to log lines.
497
ddea74fa 498PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
499 and InterBase are left for another time.)
500
ddea74fa
PH
501PH/21 Added message_body_newlines option.
502
ce9f225c
PH
503PH/22 Guard against possible overflow in moan_check_errorcopy().
504
19897d52
PH
505PH/23 POSIX allows open() to be a macro; guard against that.
506
bc64a74d
PH
507PH/24 If the recipient of an error message contained an @ in the local part
508 (suitably quoted, of course), incorrect values were put in $domain and
509 $local_part during the evaluation of errors_copy.
510
eb4c0de6 511
b4ed4da0
PH
512Exim version 4.67
513-----------------
514
22ad45c9
MH
515MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
516 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
517 Jan Srzednicki.
518
b4ed4da0
PH
519PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
520 issue a MAIL command.
521
431b7361
PH
522PH/02 In an ACL statement such as
523
524 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
525
526 if a client was not listed at all, or was listed with a value other than
527 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
528 the condition was not true (as it should be), so access was not denied.
529 The bug was that the ! inversion was incorrectly passed on to the second
530 item. This has been fixed.
531
532PH/03 Added additional dnslists conditions == and =& which are different from
533 = and & when the dns lookup returns more than one IP address.
534
83da1223
PH
535PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
536 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
537
54fc8428
PH
538PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
539 FSYNC, which compiles an option called disable_fsync that allows for
540 bypassing fsync(). The documentation is heavily laced with warnings.
541
34c5e8dd
SC
542SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
543
bbe15da8
PH
544PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
545 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
546 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
547 including adding "make clean"; (3) Added -fPIC when compiling the test
548 dynamically loaded module, to get rid of a warning.
549
0e8a9471
MH
550MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
551 message fails, move_frozen_messages = true and ignore_bounce_errors_after
552 = 0s. The bug is otherwise harmless.
553
f0872424
PH
554PH/07 There was a bug in the dovecot authenticator such that the value of
555 $auth1 could be overwritten, and so not correctly preserved, after a
556 successful authentication. This usually meant that the value preserved by
557 the server_setid option was incorrect.
558
b01dd148
PH
559PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
560
6bf342e1
PH
561PH/09 Installed PCRE release 7.0.
562
273f34d0
PH
563PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
564 run for batched SMTP input. It is now run at the start of every message
565 in the batch. While fixing this I discovered that the process information
566 (output by running exiwhat) was not always getting set for -bs and -bS
567 input. This is fixed, and it now also says "batched" for BSMTP.
568
cf8b11a5
PH
569PH/11 Added control=no_pipelining.
570
41c7c167
PH
571PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
572 patch, slightly modified), and move the expansion of helo_data till after
573 the connection is made in the smtp transport (so it can use these
574 values).
575
9c57cbc0
PH
576PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
577
f3f065bb
PH
578PH/14 Added log_selector = +pid.
579
047bdd8c
PH
580PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
581
0ce9abe6
PH
582PH/16 Add ${if forany and ${if forall.
583
0e22dfd1
PH
584PH/17 Added dsn_from option to vary the From: line in DSNs.
585
4c590bd1
PH
586PH/18 Flush SMTP output before performing a callout, unless control =
587 no_callout_flush is set.
588
09945f1e
PH
589PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
590 was true (the default) a successful delivery failed to delete the retry
591 item, thus causing premature timeout of the address. The bug is now
592 fixed.
593
c51b8e75
PH
594PH/20 Added hosts_avoid_pipelining to the smtp transport.
595
e28326d8
PH
596PH/21 Long custom messages for fakedefer and fakereject are now split up
597 into multiline reponses in the same way that messages for "deny" and
598 other ACL rejections are.
599
75b1493f
PH
600PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
601 with slight modification.
602
7c5214ec
PH
603PH/23 Applied sieve patches from the maintainer "tracking the latest notify
604 draft, changing the syntax and factoring some duplicate code".
605
4311097e
PH
606PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
607 for deliveries of the second and subsequent messages over the same SMTP
608 connection.
609
29f89cad
PH
610PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
611 ${reduce, with only minor "tidies".
612
5e687460
SC
613SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
614
c3611384
PH
615PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
616 expansion side effects.
617
5a11a7b4
PH
618PH/27 When a message times out after an over-quota error from an Exim-imposed
619 quota, the bounce message says "mailbox is full". This message was not
620 being given when it was a system quota that was exceeded. It now should
621 be the same.
622
0e20aff9
MH
623MH/03 Made $recipients available in local_scan(). local_scan() already has
624 better access to the recipient list through recipients_list[], but
625 $recipients can be useful in postmaster-provided expansion strings.
626
ca86f471
PH
627PH/28 The $smtp_command and $smtp_command_argument variables were not correct
628 in the case of a MAIL command with additional options following the
629 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
630 were accidentally chopped off.
631
a14e5636
PH
632PH/29 SMTP synchronization checks are implemented when a command is read -
633 there is a check that no more input is waiting when there shouldn't be
634 any. However, for some commands, a delay in an ACL can mean that it is
635 some time before the response is written. In this time, more input might
636 arrive, invalidly. So now there are extra checks after an ACL has run for
637 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
638 pipelining has not been advertised.
639
ec95d1a6
PH
640PH/30 MH's patch to allow iscntrl() characters to be list separators.
641
42855d71
PH
642PH/31 Unlike :fail:, a custom message specified with :defer: was not being
643 returned in the SMTP response when smtp_return_error_details was false.
644 This has been fixed.
645
57c2c631
PH
646PH/32 Change the Dovecot authenticator to use read() and write() on the socket
647 instead of the C I/O that was originally supplied, because problems were
648 reported on Solaris.
649
58c01c94
PH
650PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
651 Exim which did not show up earlier: it was assuming that a call to
652 SSL_CTX_set_info_callback() might give an error value. In fact, there is
653 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
654 was a macro that became an assignment, so it seemed to work. This has
655 changed to a proper function call with a void return, hence the compile
656 error. Exim's code has been fixed.
657
dee5a20a
PH
658PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
659 cpus.
660
d2ee6114
PH
661PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
662
b2d5182b
PH
663PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
664
79749a79
PH
665PH/37 If a message is not accepted after it has had an id assigned (e.g.
666 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
667 "Completed" line in the log. When some messages of this type were
668 selected by exigrep, they were listed as "not completed". Others were
669 picked up by some special patterns. I have improved the selection
670 criteria to be more general.
79749a79 671
c456d9bb
PH
672PH/38 The host_find_failed option in the manualroute router can now be set
673 to "ignore", to completely ignore a host whose IP address cannot be
674 found. If all hosts are ignored, the behaviour is controlled by the new
675 host_all_ignored option.
676
cd9868ec
PH
677PH/39 In a list of hosts for manualroute, if one item (either because of multi-
678 homing or because of multiple MX records with /mx) generated more than
679 one IP address, and the following item turned out to be the local host,
680 all the secondary addresses of the first item were incorrectly removed
681 from the list, along with the local host and any following hosts (which
682 is what is supposed to happen).
683
ebeaf996
PH
684PH/40 When Exim receives a message, it writes the login name, uid, and gid of
685 whoever called Exim into the -H file. In the case of the daemon it was
686 behaving confusingly. When first started, it used values for whoever
687 started the daemon, but after a SIGHUP it used the Exim user (because it
688 calls itself on a restart). I have changed the code so that it now always
689 uses the Exim user.
690
2679d413
PH
691PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
692 message are rejected with the same error (e.g. no authentication or bad
693 sender address), and a DATA command is nevertheless sent (as can happen
694 with PIPELINING or a stupid MUA), the error message that was given to the
695 RCPT commands is included in the rejection of the DATA command. This is
696 intended to be helpful for MUAs that show only the final error to their
697 users.
698
84024b72
PH
699PH/42 Another patch from the Sieve maintainer.
700
8005d38e
SC
701SC/02 Eximstats - Differentiate between permanent and temporary rejects.
702 Eximstats - Fixed some broken HTML links and added missing column headers
703 (Jez Hancock).
704 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
705 columns for Rejects, Temp Rejects, Ham, and Spam rows.
706
3298c6c6
SC
707SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
708
a43a27c5
PH
709PH/43 Yet another patch from the Sieve maintainer.
710
58eb016e 711PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
712 the response to the final '.' that terminates a message, but only in the
713 case where the client has not sent further data following the '.'
714 (unfortunately, this is allowed). However, in many cases there won't be
715 any further data because there won't be any more messages to send. A call
716 to select() can be used: if it shows that the input is "ready", there is
717 either input waiting, or the socket has been closed. An attempt to read
718 the next input character can distinguish the two cases. Previously, Exim
58eb016e 719 would have sent an OK response which the client would never have see.
563b63fa
PH
720 This could lead to message repetition. This fix should cure that, at
721 least in a lot of common cases.
58eb016e 722
b43a74ea
PH
723PH/45 Do not advertise STARTTLS in response to HELP unless it would be
724 advertised in response to EHLO.
725
b4ed4da0 726
5dd1517f
PH
727Exim version 4.66
728-----------------
729
730PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
731 fixed by 4.65/MH/01 (is this a record?) are fixed:
732
733 (i) An empty string was always treated as zero by the numeric comparison
734 operators. This behaviour has been restored.
735
736 (ii) It is documented that the numeric comparison operators always treat
737 their arguments as decimal numbers. This was broken in that numbers
738 starting with 0 were being interpreted as octal.
739
740 While fixing these problems I realized that there was another issue that
741 hadn't been noticed. Values of message_size_limit (both the global option
742 and the transport option) were treated as octal if they started with 0.
743 The documentation was vague. These values are now always treated as
744 decimal, and I will make that clear in the documentation.
745
746
93cfa765
TK
747Exim version 4.65
748-----------------
749
750TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
751 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
752 versions. (#438)
753
d6066548
MH
754MH/01 Don't check that the operands of numeric comparison operators are
755 integers when their expansion is in "skipping" mode (fixes bug
756 introduced by 4.64-PH/07).
757
4362ff0d
PH
758PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
759 child addresses, Exim now panics and dies. Previously, because the count
760 is held in a short int, deliveries were likely to be lost. As such a
761 large number of recipients for a single message is ridiculous
762 (performance will be very, very poor), I have chosen to impose a limit
763 rather than extend the field.
764
93cfa765 765
944e9e9c
TF
766Exim version 4.64
767-----------------
aa41d2de 768
21d74bd9
TK
769TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
770 leftover -K file (the existence of which was triggered by #402).
771 While we were at it, introduced process PID as part of the -K
772 filename. This should rule out race conditions when creating
773 these files.
774
775TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
776 processing considerably. Previous code took too long for large mails,
777 triggering a timeout which in turn triggers #401.
778
779TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
780 in the DK code in transports.c. sendfile() is not really portable,
781 hence the _LINUX specificness.
944e9e9c
TF
782
783TF/01 In the add_headers option to the mail command in an Exim filter,
784 there was a bug that Exim would claim a syntax error in any
785 header after the first one which had an odd number of characters
786 in the field name.
787
2b1c6e3a
PH
788PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
789 callout verification, Exim cached a "reject" for the entire domain. This
790 is correct for most verifications, but it is not correct for a recipient
791 verification with use_sender or use_postmaster set, because in that case
792 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
793 case of MAIL FROM:<> rejection from other early rejections (e.g.
794 rejection of HELO). When verifying a recipient using a non-null MAIL
795 address, the cache is ignored if it shows MAIL FROM:<> rejection.
796 Whatever the result of the callout, the value of the domain cache is
797 left unchanged (for any other kind of callout, getting as far as trying
798 RCPT means that the domain itself is ok).
799
1f872c80
PH
800PH/02 Tidied a number of unused variable and signed/unsigned warnings that
801 gcc 4.1.1 threw up.
802
803PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
804 manifest itself as EPIPE rather than ECONNECT. When tidying away a
805 session, the daemon ignores ECONNECT errors and logs others; it now
806 ignores EPIPE as well.
807
d203e649
PH
808PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
809 (quoted-printable decoding).
810
cc2ed8f7 811PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 812 later the small subsequent patch to fix an introduced bug.
f951fd57 813
ddfcd446
PH
814PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
815
d45b1de8
PH
816PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
817
818PH/08 An error is now given if message_size_limit is specified negative.
819
38a0a95f 820PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 821 to be given (somewhat) arbitrary names.
38a0a95f 822
a2405d83
JJ
823JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
824 in 4.64-PH/09.
825
826JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
827 miscellaneous code fixes
828
6ea85e9a
PH
829PH/10 Added the log_reject_target ACL modifier to specify where to log
830 rejections.
831
26da7e20
PH
832PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
833 hostname. This is wrong, because it relates to the incoming message (and
834 probably the interface on which it is arriving) and not to the outgoing
835 callout (which could be using a different interface). This has been
836 changed to use the value of the helo_data option from the smtp transport
837 instead - this is what is used when a message is actually being sent. If
838 there is no remote transport (possible with a router that sets up host
839 addresses), $smtp_active_hostname is used.
6ea85e9a 840
14aa5a05 841PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 842 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
843 (a) The code assumed that strncpy() returns a negative number on buffer
844 overflow, which isn't the case. Replaced with Exim's string_format()
845 function.
846 (b) There were several signed/unsigned issues. I just did the minimum
847 hacking in of casts. There is scope for a larger refactoring.
848 (c) The code used strcasecmp() which is not a standard C function.
849 Replaced with Exim's strcmpic() function.
850 (d) The code set only $1; it now sets $auth1 as well.
851 (e) A simple test gave the error "authentication client didn't specify
852 service in request". It would seem that Dovecot has changed its
853 interface. Fortunately there's a specification; I followed it and
854 changed what the client sends and it appears to be working now.
855
ff75a1f7
PH
856PH/13 Added $message_headers_raw to provide the headers without RFC 2047
857 decoding.
858
e6f6568e
PH
859PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
860 address A is aliased to B and C, where B exists and C does not. Without
861 -v the output is "A verified" because verification stops after a
862 successful redirection if more than one address is generated. However,
863 with -v the child addresses are also verified. Exim was outputting "A
864 failed to verify" and then showing the successful verification for C,
865 with its parentage. It now outputs "B failed to verify", showing B's
866 parentage before showing the successful verification of C.
867
d6f6e0dc
PH
868PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
869 look up a TXT record in a specific list after matching in a combined
870 list.
871
322050c2
PH
872PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
873 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
874 they consult the DNS. I had assumed they would set it the way they
875 wanted; and indeed my experiments on Linux seem to show that in some
876 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
877 To be on the safe side, however, I have now made the interface to
878 host_find_byname() similar to host_find_bydns(), with an argument
879 containing the DNS resolver options. The host_find_byname() function now
880 sets these options at its start, just as host_find_bydns() does. The smtp
881 transport options dns_qualify_single and dns_search_parents are passed to
882 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
883 of host_find_byname() use the default settings of RES_DEFNAMES
884 (qualify_single) but not RES_DNSRCH (search_parents).
885
08955dd3
PH
886PH/17 Applied (a modified version of) Nico Erfurth's patch to make
887 spool_read_header() do less string testing, by means of a preliminary
888 switch on the second character of optional "-foo" lines. (This is
889 overdue, caused by the large number of possibilities that now exist.
890 Originally there were few.) While I was there, I also converted the
891 str(n)cmp tests so they don't re-test the leading "-" and the first
892 character, in the hope this might squeeze out yet more improvement.
893
1eccaa59
PH
894PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
895 flag allowing group syntax was set by the header_syntax check but not
896 turned off, possible causing trouble later; (2) The flag was not being
897 set at all for the header_verify test, causing "group"-style headers to
898 be rejected. I have now set it in this case, and also caused header_
899 verify to ignore an empty address taken from a group. While doing this, I
900 came across some other cases where the code for allowing group syntax
901 while scanning a header line wasn't quite right (mostly, not resetting
902 the flag correctly in the right place). These bugs could have caused
903 trouble for malformed header lines. I hope it is now all correct.
904
602e59e5
PH
905PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
906 with the "reply" argument non-NULL. The code, however (which originally
907 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
908 but it didn't always do it. This confused somebody who was copying the
909 code for some other use. I have removed all the tests.
910
411ef850
PH
911PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
912 feature that was used to support insecure browsers during the U.S. crypto
913 embargo. It requires special client support, and Exim is probably the
914 only MTA that supported it -- and would never use it because real RSA is
915 always available. This code has been removed, because it had the bad
916 effect of slowing Exim down by computing (never used) parameters for the
917 RSA_EXPORT functionality.
918
7befa435
PH
919PH/21 On the advice of Timo Sirainen, added a check to the dovecot
920 authenticator to fail if there's a tab character in the incoming data
921 (there should never be unless someone is messing about, as it's supposed
922 to be base64-encoded). Also added, on Timo's advice, the "secured" option
923 if the connection is using TLS or if the remote IP is the same as the
924 local IP, and the "valid-client-cert option" if a client certificate has
925 been verified.
926
48da4259 927PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
928 authenticators. This can be used for authorization after authentication
929 succeeds. (In the case of plaintext, it servers for both authentication
930 and authorization.)
931
48da4259
PH
932PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
933 if any retry times were supplied.
934
d1d5595c
PH
935PH/24 Exim crashed if verify=helo was activated during an incoming -bs
936 connection, where there is no client IP address to check. In this
937 situation, the verify now always succeeds.
938
0ef732d9
PH
939PH/25 Applied John Jetmore's -Mset patch.
940
328895cc
PH
941PH/26 Added -bem to be like -Mset, but loading a message from a file.
942
fd700877
PH
943PH/27 In a string expansion for a processed (not raw) header when multiple
944 headers of the same name were present, leading whitespace was being
945 removed from all of them, but trailing whitespace was being removed only
946 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
947 before concatenation. Completely empty headers in a concatenation (as
948 before) are ignored.
fd700877 949
8dce1a6f
PH
950PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
951 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
952
17af4a17
PH
953PH/29 [Removed. This was a change that I later backed out, and forgot to
954 correct the ChangeLog entry (that I had efficiently created) before
955 committing the later change.]
f6c332bd
PH
956
957PH/30 Exim was sometimes attempting to deliver messages that had suffered
958 address errors (4xx response to RCPT) over the same connection as other
959 messages routed to the same hosts. Such deliveries are always "forced",
960 so retry times are not inspected. This resulted in far too many retries
961 for the affected addresses. The effect occurred only when there were more
962 hosts than the hosts_max_try setting in the smtp transport when it had
963 the 4xx errors. Those hosts that it had tried were not added to the list
964 of hosts for which the message was waiting, so if all were tried, there
965 was no problem. Two fixes have been applied:
966
967 (i) If there are any address or message errors in an SMTP delivery, none
968 of the hosts (tried or untried) are now added to the list of hosts
969 for which the message is waiting, so the message should not be a
970 candidate for sending over the same connection that was used for a
971 successful delivery of some other message. This seems entirely
972 reasonable: after all the message is NOT "waiting for some host".
973 This is so "obvious" that I'm not sure why it wasn't done
974 previously. Hope I haven't missed anything, but it can't do any
975 harm, as the worst effect is to miss an optimization.
976
977 (ii) If, despite (i), such a delivery is accidentally attempted, the
978 routing retry time is respected, so at least it doesn't keep
979 hammering the server.
980
c1114884
PH
981PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
982 in ${readsocket because some servers need this prod.
983
7a0743eb
PH
984PH/32 Added some extra debug output when updating a wait-xxx database.
985
0d85fa3f
PH
986PH/33 The hint "could be header name not terminated by colon", which has been
987 given for certain expansion errors for a long time, was not being given
988 for the ${if def:h_colon_omitted{... case.
989
1bf43b78
PH
990PH/34 The spec says: "With one important exception, whenever a domain list is
991 being scanned, $domain contains the subject domain." There was at least
992 one case where this was not true.
993
520de300
PH
994PH/35 The error "getsockname() failed: connection reset by peer" was being
995 written to the panic log as well as the main log, but it isn't really
996 panic-worthy as it just means the connection died rather early on. I have
997 removed the panic log writing for the ECONNRESET error when getsockname()
998 fails.
999
48c7f9e2
PH
1000PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1001 runs only) independently of the message's sender address. This meant
1002 that, if the 4xx error was in fact related to the sender, a different
1003 message to the same recipient with a different sender could confuse
1004 things. In particualar, this can happen when sending to a greylisting
1005 server, but other circumstances could also provoke similar problems.
1006 I have changed the default so that the retry time for these errors is now
1007 based a combination of the sender and recipient addresses. This change
1008 can be overridden by setting address_retry_include_sender=false in the
1009 smtp transport.
1010
99ea1c86
PH
1011PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1012 remote server are returned as part of bounce messages. This was not
1013 happening for LMTP over a pipe (the lmtp transport), but now it is the
1014 same for both kinds of LMTP.
1015
a2042e78
PH
1016PH/38 Despite being documented as not happening, Exim was rewriting addresses
1017 in header lines that were in fact CNAMEs. This is no longer the case.
1018
4fbcfc2e
PH
1019PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1020 and queue runs started by the daemon processed all messages. This has
1021 been fixed so that -R and -S can now usefully be given with -q<time>.
1022
aa41d2de
PH
1023PH/40 Import PCRE release 6.7 (fixes some bugs).
1024
af561417
PH
1025PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1026
3cc66b45
PH
1027PH/42 Give an error if -q is specified more than once.
1028
194cc0e4
PH
1029PH/43 Renamed the variables $interface_address and $interface_port as
1030 $received_ip_address and $received_port, to make it clear that these
1031 values apply to message reception, and not to the outgoing interface when
1032 a message is delivered. (The old names remain recognized, of course.)
1033
a401ddaa
PH
1034PH/44 There was no timeout on the connect() call when using a Unix domain
1035 socket in the ${readsocket expansion. There now is.
1036
4e88a19f
PH
1037PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1038 be meaningful with "accept".
1039
d7d7b289
SC
1040SC/01 Eximstats V1.43
1041 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1042
1043SC/02 Eximstats V1.44
1044 Use a glob alias rather than an array ref in the generated
1045 parser. This improves both readability and performance.
1046
1047SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1048 Collect SpamAssassin and rejection statistics.
1049 Don't display local sender or destination tables unless
1050 there is data to show.
1051 Added average volumes into the top table text output.
1052
1053SC/04 Eximstats V1.46
1054 Collect data on the number of addresses (recipients)
1055 as well as the number of messages.
1056
1057SC/05 Eximstats V1.47
1058 Added 'Message too big' to the list of mail rejection
1059 reasons (thanks to Marco Gaiarin).
1060
1061SC/06 Eximstats V1.48
1062 Mainlog lines which have GMT offsets and are too short to
1063 have a flag are now skipped.
1064
1065SC/07 Eximstats V1.49 (Alain Williams)
1066 Added the -emptyok flag.
1067
1068SC/08 Eximstats V1.50
1069 Fixes for obtaining the IP address from reject messages.
1070
0ea2a468
JJ
1071JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1072 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1073 whitesspace changes from 4.64-PH/27
1074
1075JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1076 match 4.64-PH/13
1077
1078JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1079 are found, allow negative numbers in numeric criteria)
1080
1081JJ/06 exipick.20061117.2, added new $message_body_missing variable
1082
1083JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1084 to match changes made in 4.64-PH/43
1085
8a10f5a4
PH
1086PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1087
30e18802
PH
1088PH/47 Put in an explicit test for a DNS lookup of an address record where the
1089 "domain" is actually an IP address, and force a failure. This locks out
1090 those revolvers/nameservers that support "A-for-A" lookups, in
1091 contravention of the specifications.
1092
55728a4f
PH
1093PH/48 When a host name was looked up from an IP address, and the subsequent
1094 forward lookup of the name timed out, the host name was left in
1095 $sender_host_name, contrary to the specification.
d7d7b289 1096
d7837193
PH
1097PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1098 restricted to single-key lookups, Exim was not diagnosing an error if
1099 * or *@ was used with a query-style lookup.
1100
87054a31
PH
1101PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1102
ea2c01d2
MH
1103MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1104 long ago, but noone interested enough thought of it. Let's just say that
1105 the "1.1" means that there are some new functions that weren't there at
1106 some point in the past.
1107
e4fa6968
PH
1108PH/51 Error processing for expansion failure of helo_data from an smtp
1109 transport during callout processing was broken.
1110
56f5d9bd
PH
1111PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1112 tested/used via the -bh/-bhc/-bs options.
1113
922e1c28
PH
1114PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1115 bug, fixed in subsequent PCRE releases).
1116
21eb6e72
PH
1117PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1118 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1119
a0540757
PH
1120PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1121
944e9e9c 1122
478be7b0
SC
1123Exim version 4.63
1124-----------------
1125
1126SC/01 Use a glob alias rather than an array ref in eximstats generated
1127 parser. This improves both readability and performance.
1128
1129SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1130 Don't display local sender or destination tables in eximstats unless
1131 there is data to show.
1132 Added average volumes into the eximstats top table text output.
1133
1134SC/03 Collect data on the number of addresses (recipients) as well
1135 as the number of messages in eximstats.
1136
2b965a65
TF
1137TF/01 Correct an error in the documentation for the redirect router. Exim
1138 does (usually) call initgroups() when daemonizing.
478be7b0 1139
45b91596
PH
1140TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1141 with consistent privilege compared to when running as a daemon.
478be7b0 1142
c59f5781
TF
1143TF/03 Note in the spec that $authenticated_id is not set for local
1144 submissions from trusted users.
1145
90fc3069
TF
1146TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1147 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1148
6083aca0
TF
1149TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1150 by adding some example configuration directives to the default
1151 configuration file. A little bit of work is required to uncomment the
1152 directives and define how usernames and passwords are checked, but
1153 there is now a framework to start from.
1154
765b530f
PH
1155PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1156 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1157 without this. I don't know how relevant this is to other LDAP libraries.
1158
4e167a8c
PH
1159PH/02 Add the verb name to the "unknown ACL verb" error.
1160
4608d683
PH
1161PH/03 Magnus Holmgren's patch for filter_prepend_home.
1162
b8dc3e4a
PH
1163PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1164
5418e93b
PH
1165PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1166 directory not expanded when it should be if an expanded home directory
1167 was set for the address (which is overridden by the transport).
1168
b4a9bda2
PH
1169PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1170 libradius.
1171
45b91596
PH
1172PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1173 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1174 because it is too late at that time, and has no effect.
1175
5547e2c5
PH
1176PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1177 security issue with \' (bugzilla #107). I could not use the
1178 PQescapeStringConn() function, because it needs a PGconn value as one of
1179 its arguments.
1180
dbcef0ea
PH
1181PH/08 When testing addresses using -bt, indicate those final addresses that
1182 are duplicates that would not cause an additional delivery. At least one
1183 person was confused, thinking that -bt output corresponded to deliveries.
1184 (Suppressing duplicates isn't a good idea as you lose the information
1185 about possibly different redirections that led to the duplicates.)
1186
25257489
PH
1187PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1188 systems where poll() doesn't work, in particular OS X.
1189
c816d124
PH
1190PH/10 Added more information to debugging output for retry time not reached.
1191
a9ccd69a
PH
1192PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1193 operations in malware.c.
1194
75fa1910
PH
1195PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1196 signatures.
1197
a7d7aa58
PH
1198PH/13 If write_rejectlog was set false when logging was sent to syslog with
1199 syslog_duplication set false, log lines that would normally be written
1200 both the the main log and to the reject log were not written to syslog at
1201 all.
1202
42119b09
PH
1203PH/14 In the default configuration, change the use of "message" in ACL warn
1204 statements to "add_header".
1205
41609df5
PH
1206PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1207 not followed by a command (e.g. "seen endif").
1208
a5bd321b
PH
1209PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1210 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1211 latter.
1212
e85a7ad5 1213PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1214 so that it is now:
1215
e85a7ad5
PH
1216 ${if or { \
1217 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1218 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1219 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1220 }{no}{yes}}
1221
e85a7ad5
PH
1222 The Auto-Submitted: and various List- headers are standardised, whereas I
1223 don't think Precedence: ever was.
5dff5817 1224
d8fe1c03
PH
1225PH/18 Refactored debugging code in route_finduser() to show more information,
1226 in particular, the error code if getpwnam() issues one.
1227
16282d2b
PH
1228PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1229 This is apparently needed in addition to the PH/07 change above to avoid
1230 any possible encoding problems.
1231
35d40a98
PH
1232PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1233 but not after initializing Perl.
1234
034d99ab
PH
1235PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1236 output them only if debugging. By default they are written stderr,
1237 apparently, which is not desirable.
1238
6ec97b1b
PH
1239PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1240 queries.
1241
e22ca4ac
JJ
1242JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1243 --not options
1244
1245JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1246
33d73e3b
PH
1247PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1248 authenticated or an ident call has been made. Suppress the default
1249 values for $authenticated_id and $authenticated_sender (but permit -oMai
1250 and -oMas) when testing with -bh.
1251
9ecb03f3
PH
1252PH/24 Re-jigged the order of the tests in the default configuration so that the
1253 tests for valid domains and recipients precede the DNS black list and CSA
1254 tests, on the grounds that those ones are more expensive.
1255
084efe8d
PH
1256PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1257 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1258 This bug exists in every version of Exim that I still have, right back to
1259 0.12.
1260
366fc9f0
PH
1261PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1262 However, an attempt to turn on case-sensitivity in a regex key by
1263 including (?-i) didn't work because the subject string was already
1264 lowercased, and the effects were non-intuitive. It turns out that a
1265 one-line patch can be used to allow (?-i) to work as expected.
1266
c59f5781 1267
c887c79e
TF
1268Exim version 4.62
1269-----------------
1270
1271TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1272 other effects) broke the use of negated acl sub-conditions.
1273
1cce3af8
PH
1274PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1275 patch).
1276
afb3eaaf
PH
1277PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1278 "Deny" causes Exim to reject the incoming connection with a 554 error.
1279 Unfortunately, if there is a major crisis, such as a disk failure,
1280 tcp-wrappers gives "deny", whereas what one would like would be some
1281 kind of temporary error. A kludge has been added to help with this.
1282 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1283 554 error is used if errno is still zero or contains ENOENT (which occurs
1284 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1285 451 error is used.
1286
e173618b
PH
1287PH/03 Add -lutil to the default FreeBSD LIBS setting.
1288
dd16e114
PH
1289PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1290 errors. Otherwise a message that provokes a temporary error (when other
1291 messages do not) can cause a whole host to time out.
1292
f7fd3850
PH
1293PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1294 addresses were routed directly to files or pipes from a redirect router.
1295 File deliveries just didn't batch; pipe deliveries might have suffered
1296 odd errors.
1297
d87df92c
PH
1298PH/06 A failure to get a lock for a hints database would erroneously always say
1299 "Failed to get write lock", even when it was really a read lock.
1300
7e9f683d
PH
1301PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1302 of 0600. This has been changed to use the value of the lockfile_mode
1303 option (which defaults to 0600).
1304
bfad5236
PH
1305PH/08 Applied small patch from the Sieve maintainer.
1306
01c490df
PH
1307PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1308 folder from quota calculations, a direct delivery into this folder messed
1309 up the contents of the maildirsize file. This was because the regex was
1310 used only to exclude .Trash (or whatever) when the size of the mailbox
1311 was calculated. There was no check that a delivery was happening into an
1312 excluded directory. This bug has been fixed by ignoring all quota
1313 processing for deliveries into excluded directories.
1314
d6629cdc
PH
1315PH/10 Added the maildirfolder_create_regex option to appendfile.
1316
1cce3af8 1317
214e2000
PH
1318Exim version 4.61
1319-----------------
1320
1321PH/01 The code for finding all the local interface addresses on a FreeBSD
1322 system running IPv6 was broken. This may well have applied to all BSD
1323 systems, as well as to others that have similar system calls. The broken
1324 code found IPv4 interfaces correctly, but gave incorrect values for the
1325 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1326 that it would not match correctly against @[] and not recognize the IPv6
1327 addresses as local.
1328
f9daeae0
PH
1329PH/02 The ipliteral router was not recognizing addresses of the form user@
1330 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1331
7e66e54d
PH
1332PH/03 Added disable_ipv6.
1333
c8ea1597
PH
1334PH/04 Changed $reply_address to use the raw form of the headers instead of the
1335 decoded form, because it is most often used to construct To: headers
1336 lines in autoreplies, and the decoded form may well be syntactically
1337 invalid. However, $reply_address has leading white space removed, and all
1338 newlines turned into spaces so that the autoreply transport does not
1339 grumble.
1340
911f6fde
PH
1341PH/05 If group was specified without a user on a router, and no group or user
1342 was specified on a transport, the group from the router was ignored.
1343
47ca6d6c
PH
1344PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1345 for visible compile-time settings that can be used to change these
1346 numbers, for those that want even more. Backwards compatibility with old
1347 spool files has been maintained. However, going back to a previous Exim
1348 release will lost any variables that are in spool files.
1349
ed0e9820
PH
1350PH/07 Two small changes when running in the test harness: increase delay when
1351 passing a TCP/IP connection to a new process, in case the original
1352 process has to generate a bounce, and remove special handling of
1353 127.0.0.2 (sic), which is no longer necessary.
1354
eff37e47
PH
1355PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1356 be the same on different OS.
1357
1921d2ea
PH
1358PH/09 Moved a debug statement in filter processing to avoid a race problem when
1359 testing.
1360
b3f69ca8
JJ
1361JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1362 whether --show-vars was specified or not
1363
1364JJ/02 exipick: Added support for new ACL variable spool format introduced
1365 in 4.61-PH/06
1366
424a1c63
PH
1367PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1368 syntactically invalid From: or Reply-to: line, and a filter used this to
1369 generate an autoreply, and therefore failed to obtain an address for the
1370 autoreply, Exim could try to deliver to a non-existent relative file
1371 name, causing unrelated and misleading errors. What now happens is that
1372 it logs this as a hard delivery error, but does not attempt to create a
1373 bounce message.
1374
7a100415
PH
1375PH/11 The exinext utility has a -C option for testing purposes, but although
1376 the given file was scanned by exinext itself; it wasn't being passed on
1377 when Exim was called.
1378
19b9dc85
PH
1379PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1380 an end-of-file indication when reading a command response.
1381
309bd837
PH
1382PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1383 compiled. In many other places in Exim, IPv6 addresses are always
1384 recognized, so I have changed this. It also means that IPv4 domain
1385 literals of the form [IPV4:n.n.n.n] are now always recognized.
1386
59e82a2a
PH
1387PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1388 used if the router is not running as root, for example, when verifying at
1389 ACL time, or when using -bh. The debugging output from this situation was
1390 non-existent - all you got was a failure to exec. I have made two
1391 changes:
1392
1393 (a) Failures to set uid/gid, the current directory, or a process leader
1394 in a subprocess such as that created by queryprogram now generate
1395 suitable debugging ouput when -d is set.
1396
1397 (b) The queryprogram router detects when it is not running as root,
1398 outputs suitable debugging information if -d is set, and then runs
1399 the subprocess without attempting to change uid/gid.
1400
9edc04ce
PH
1401PH/15 Minor change to Makefile for building test_host (undocumented testing
1402 feature).
1403
1349e1e5
PH
1404PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1405 additional section of a DNS packet that returns MX or SRV records.
1406 Instead, it always explicitly searches for A/AAAA records. This avoids
1407 major problems that occur when a DNS server includes only records of one
1408 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1409 fixed another bug: if SRV records were looked up and the corresponding
1410 address records were *not* found in the additional section, the port
1411 values from the SRV records were lost.
1412
ea49d0e1
PH
1413PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1414 using the correct key (the original address) when searching the retry
1415 rules in order to find which one to use for generating the retry hint.
1416
064a94c9
PH
1417PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1418 adding the default one. Similarly, if it contains a Reply-To: header, the
1419 errors_reply_to option, if set, is not used.
1420
727071f8
PH
1421PH/19 When calculating a retry time, Exim used to measure the "time since
1422 failure" by looking at the "first failed" field in the retry record. Now
1423 it does not use this if it is later than than the arrival time of the
1424 message. Instead it uses the arrival time. This makes for better
1425 behaviour in cases where some deliveries succeed, thus re-setting the
1426 "first failed" field. An example is a quota failure for a huge message
1427 when small messages continue to be delivered. Without this change, the
1428 "time since failure" will always be short, possible causing more frequent
1429 delivery attempts for the huge message than are intended.
dd16e114 1430 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1431
f78eb7c6
PH
1432PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1433 $1, $2, $3) because the numerical variables can be reset during some
1434 expansion items (e.g. "match"), thereby losing the authentication data.
1435
21c28500
PH
1436PH/21 Make -bV show the size of off_t variables so that the test suite can
1437 decide whether to run tests for quotas > 2G.
1438
1439PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1440 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1441 filecount value is greater than 2G or if a quota value is greater than 2G
1442 on a system where the size of off_t is not greater than 4, a panic error
1443 is given.
1444
1688f43b
PH
1445PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1446 never match. The debug and -bh output now contains an explicit error
1447 message indicating a malformed IPv4 address or mask.
1448
1449PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1450 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1451 PH/23 above applies.
1452
9675b384
PH
1453PH/25 Do not write to syslog when running in the test harness. The only
1454 occasion when this arises is a failure to open the main or panic logs
1455 (for which there is an explicit test).
1456
6a3f1455
PH
1457PH/26 Added the /no_tell option to "control=freeze".
1458
dac79d3e
PH
1459PH/27 If a host name lookup failed very early in a connection, for example, if
1460 the IP address matched host_lookup and the reverse lookup yielded a name
1461 that did not have a forward lookup, an error message of the form "no IP
1462 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1463 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1464
5977a0b3
PH
1465PH/28 An enabling patch from MH: add new function child_open_exim2() which
1466 allows the sender and the authenticated sender to be set when
1467 submitting a message from within Exim. Since child_open_exim() is
1468 documented for local_scan(), the new function should be too.
1469
c91535f3
PH
1470PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1471 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1472 results in an empty string is now treated as unset.
1473
0d46a8c8
PH
1474PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1475
278c6e6c
PH
1476PH/31 Added sender_verify_fail logging option.
1477
2cbb4081
PH
1478PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1479 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1480 tidied the source and removed it altogether.
1481
3eef829e
PH
1482PH/33 When a queue run was abandoned because the load average was too high, a
1483 log line was always written; now it is written only if the queue_run log
1484 selector is set. In addition, the log line for abandonment now contains
1485 information about the queue run such as the pid. This is always present
1486 in "start" and "stop" lines but was omitted from the "abandon" line.
1487
1ab95fa6
PH
1488PH/34 Omit spaces between a header name and the colon in the error message that
1489 is given when verify = headers_syntax fails (if there are lots of them,
1490 the message gets confusing).
1491
230205fc
PH
1492PH/35 Change the default for dns_check_names_pattern to allow slashes within
1493 names, as there are now some PTR records that contain slashes. This check
1494 is only to protect against broken name servers that fall over on strange
1495 characters, so the fact that it applies to all lookups doesn't matter.
1496
75e0e026
PH
1497PH/36 Now that the new test suite is complete, we can remove some of the
1498 special code in Exim that was needed for the old test suite. For example,
1499 sorting DNS records because real resolvers return them in an arbitrary
1500 order. The new test suite's fake resolver always returns records in the
1501 same order.
1502
1503PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1504 bounces) except when queue_only is set, to avoid logging races between
1505 the different processes.
1506
145396a6
PH
1507PH/38 Panic-die if .include specifies a non-absolute path.
1508
3cd34f13
PH
1509PH/39 A tweak to the "H" retry rule from its user.
1510
11121d3d
JJ
1511JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1512 a label. They prevented compilation on older perls.
1513
1514JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1515 a warning to be raised on newish perls.
1516
1517JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1518 on queue. Changes to match documented behaviour of showing count of
1519 messages matching specified criteria.
1520
8def5aaf
PH
1521PH/40 Changed the default ident timeout from 30s to 5s.
1522
929ba01c
PH
1523PH/41 Added support for the use of login_cap features, on those BSD systems
1524 that have them, for controlling the resources used by pipe deliveries.
1525
2632889e
PH
1526PH/42 The content-scanning code uses fopen() to create files in which to put
1527 message data. Previously it was not paying any attention to the mode of
1528 the files. Exim runs with umask(0) because the rest of the code creates
1529 files with open(), and sets the required mode explicitly. Thus, these
1530 files were ending up world-writeable. This was not a big issue, because,
1531 being within the spool directory, they were not world-accessible. I have
1532 created a function called modefopen, which takes an additional mode
1533 argument. It sets umask(777), creates the file, chmods it to the required
1534 mode, then resets the umask. All the relevant calls to fopen() in the
1535 content scanning code have been changed to use this function.
1536
944a9c55
PH
1537PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1538 to 24 hours. This avoids potential overflow problems when processing G
1539 and H retry rules. I suspect nobody ever tinkers with this value.
1540
4a23603b
PH
1541PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1542
4730f942
PH
1543PH/45 When the plaintext authenticator is running as a client, the server's
1544 challenges are checked to ensure they are valid base64 strings. By
1545 default, the authentication attempt is cancelled if an invalid string is
1546 received. Setting client_ignore_invalid_base64 true ignores these errors.
1547 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1548 they are received. Thus, the responses can be made to depend on the
1549 challenges. If an invalid string is ignored, an empty string is placed in
1550 the variable.
1551
30dba1e6
PH
1552PH/46 Messages that are created by the autoreply transport now contains a
1553 References: header, in accordance with RFCs 2822 and 3834.
1554
382afc6b
PH
1555PH/47 Added authenticated_sender_force to the smtp transport.
1556
a86229cf
PH
1557PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1558
50c99ba6
PH
1559PH/49 Installed latest patch from the Sieve maintainer.
1560
d35e429d
PH
1561PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1562 was also set, the appendfile transport was unnecessarily scanning a
1563 directory of message files (e.g. for maildir delivery) to find the count
1564 of files (along with the size), even though it did not need this
1565 information. It now does the scan only if it needs to find either the
1566 size of the count of files.
1567
f90d018c
PH
1568PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1569
75def545
PH
1570PH/52 Two bugs concerned with error handling when the smtp transport is
1571 used in LMTP mode:
1572
1573 (i) Exim was not creating retry information for temporary errors given
1574 for individual recipients after the DATA command when the smtp transport
1575 was used in LMTP mode. This meant that they could be retried too
1576 frequently, and not timed out correctly.
1577
1578 (ii) Exim was setting the flag that allows error details to be returned
1579 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1580 recipients that were returned after the DATA command.
1581
1582PH/53 This is related to PH/52, but is more general: for any failing address,
1583 when detailed error information was permitted to be returned to the
1584 sender, but the error was temporary, then after the final timeout, only
1585 "retry timeout exceeded" was returned. Now it returns the full error as
1586 well as "retry timeout exceeded".
1587
c46782ef
PH
1588PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1589 do this, and (what is worse) MTAs that accept it.
1590
71fafd95
PH
1591PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1592 will now be deprecated.
1593
2c5db4fd
PH
1594PH/56 New os.c-cygwin from the Cygwin maintainer.
1595
9cf6b11a
JJ
1596JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1597 formats (previously only available in exim formats via -bpr, -bpru,
1598 and -bpra. Now also available in native and exiqgrep formats)
1599
1600JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1601 with very large, slow to parse queues
1602
1603JJ/08 exipick: added ! as generic prefix to negate any criteria format
1604
1605JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1606
898d150f
PH
1607PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1608 responses to authentication challenges, though it was showing the
1609 challenges; (ii) I've removed the CR characters from the debug output for
1610 SMTP output lines.
1611
46218253
PH
1612PH/58 Allow for the insertion of a newline as well as a space when a string
1613 is turned into more than one encoded-word during RFC 2047 encoding. The
1614 Sieve code now uses this.
1615
e97957bc
PH
1616PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1617 data_4xx, lost_connection, tls_required.
1618
81e509d7
PH
1619PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1620 message was being sent as an SMTP response.
1621
3d240ff7
PH
1622PH/61 Add -l and -k options to exicyclog.
1623
b37c4101
PH
1624PH/62 When verifying, if an address was redirected to one new address, so that
1625 verification continued, and the new address failed or deferred after
1626 having set something in $address_data, the value of $address_data was not
1627 passed back to the ACL. This was different to the case when no
1628 redirection occurred. The value is now passed back in both cases.
1629
79378e0f
PH
1630PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1631 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1632 use login_cap.h, so on its own it isn't the distinguishing feature. The
1633 new name refers directly to the setclassresources() function.
1634
e49c7bb4
PH
1635PH/65 Added configuration files for NetBSD3.
1636
d114ec46
PH
1637PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1638
f3d7df6c
PH
1639PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1640 is preferred over IPv4.
1641
715ab376
PH
1642PH/68 The bounce_return_message and bounce_return_body options were not being
1643 honoured for bounces generated during the reception of non-SMTP messages.
1644 In particular, this applied to messages rejected by the ACL. This bug has
1645 been fixed. However, if bounce_return_message is true and bounce_return_
1646 body is false, the headers that are returned for a non-SMTP message
1647 include only those that have been read before the error was detected.
1648 (In the case of an ACL rejection, they have all been read.)
1649
6b31b150
PH
1650PH/69 The HTML version of the specification is now built in a directory called
1651 spec_html instead of spec.html, because the latter looks like a path with
1652 a MIME-type, and this confuses some software.
1653
1654PH/70 Catch two compiler warnings in sieve.c.
1655
d515a917
PH
1656PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1657 function verify_get_ident() calls ip_connect() to connect a socket, but
1658 if the "connect()" function timed out, ip_connect() used to close the
1659 socket. However, verify_get_ident() also closes the socket later, and in
1660 between Exim writes to the log, which may get opened at this point. When
1661 the socket was closed in ip_connect(), the log could get the same file
1662 descriptor number as the socket. This naturally causes chaos. The fix is
1663 not to close the socket in ip_connect(); the socket should be closed by
1664 the function that creates it. There was only one place in the code where
1665 this was missing, in the iplookup router, which I don't think anybody now
1666 uses, but I've fixed it anyway.
1667
9b8fadde
PH
1668PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1669 well as to direct DNS lookups. Otherwise the handling of names in host
1670 lists is inconsistent and therefore confusing.
1671
214e2000 1672
5de37277
PH
1673Exim version 4.60
1674-----------------
1675
cc38ddbf
PH
1676PH/01 Two changes to the default runtime configuration:
1677
1678 (1) Move the checks for relay_from_hosts and authenticated clients from
1679 after to before the (commented out) DNS black list checks.
1680
1681 (2) Add control=submission to the relay_from_hosts and authenticated
1682 clients checks, on the grounds that messages accepted by these
1683 statements are most likely to be submissions.
5de37277 1684
72fdd6ae
PH
1685PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1686
1687 (1) Generate an error if the third argument for the ${prvs expansion is
1688 not a single digit.
1689
1690 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1691 string.
1692
1693 (3) Reset the variables that are obtained from the first argument of
1694 ${prvscheck and used in the second argument before leaving the code,
1695 because their memory is reclaimed, so using them afterwards may do
1696 silly things.
1697
1698 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1699 one (it's much easier than Tom thought :-).
1700
1701 (5) Because of (4), we can now allow for the use of $prvscheck_result
1702 inside the third argument.
cb9328de 1703
cb741023
PH
1704PH/03 For some reason, the default setting of PATH when running a command from
1705 a pipe transport was just "/usr/bin". I have changed it to
1706 "/bin:/usr/bin".
1707
f174f16e
PH
1708PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1709 anything to be listed in the output from -bV.
b2f5a032 1710
c25242d7
PH
1711PH/05 When a filter generated an autoreply, the entire To: header line was
1712 quoted in the delivery log line, like this:
1713
1714 => >A.N.Other <ano@some.domain> <original@ddress> ...
1715
1716 This has been changed so that it extracts the operative address. There
1717 may be more than one such address. If so, they are comma-separated, like
1718 this:
1719
1720 => >ano@some.domain,ona@other.domain <original@ddress> ...
1721
82c19f95
PH
1722PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1723 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1724 not being looked up in the rDNS to get a host name, Exim was showing the
1725 IP address twice in Received: lines, even though the IP addresses were
1726 identical. For example:
1727
1728 Received: from [1.2.3.4] (helo=[1.2.3.4])
1729
1730 However, if the real host name was known, it was omitting the HELO data
1731 if it matched the actual IP address. This has been tidied up so that it
1732 doesn't show the same IP address twice.
1733
d7ffbc12
PH
1734PH/07 When both +timestamp and +memory debugging was on, the value given by
1735 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1736 called by the debug printing, thereby overwriting the timestamp buffer.
1737 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1738
9f526266
PH
1739PH/08 When the original message was included in an autoreply transport, it
1740 always said "this is a copy of the message, including all the headers",
1741 even if body_only or headers_only was set. It now gives an appropriate
1742 message.
1743
87fcc8b9
PH
1744PH/09 Applied a patch from the Sieve maintainer which:
1745
1746 o fixes some comments
1747 o adds the (disabled) notify extension core
1748 o adds some debug output for the result of if/elsif tests
1749 o points to the current vacation draft in the documentation
1750 and documents the missing references header update
1751
1752 and most important:
1753
1754 o fixes a bug in processing the envelope test (when testing
1755 multiple envelope elements, the last element determinted the
1756 result)
1757
456682f5
PH
1758PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1759 Electronic Mail") by including:
1760
1761 Auto-submitted: auto-generated
1762
1763 in the messages that it generates (bounce messages and others, such as
1764 warnings). In the case of bounce messages for non-SMTP mesages, there was
1765 also a typo: it was using "Auto_submitted" (underscore instead of
1766 hyphen). Since every message generated by Exim is necessarily in response
1767 to another message, thes have all been changed to:
1768
1769 Auto-Submitted: auto-replied
1770
1771 in accordance with these statements in the RFC:
1772
1773 The auto-replied keyword:
1774
1775 - SHOULD be used on messages sent in direct response to another
1776 message by an automatic process,
1777
1778 - MUST NOT be used on manually-generated messages,
1779
1780 - MAY be used on Delivery Status Notifications (DSNs) and Message
1781 Disposition Notifications (MDNs),
1782
1783 - MUST NOT be used on messages generated by automatic or periodic
1784 processes, except for messages which are automatic responses to
1785 other messages.
1786
3e46c1aa
PH
1787PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1788 to the default Received: header definition.
456682f5 1789
49826d12
PH
1790PH/12 Added log selector acl_warn_skipped (default on).
1791
eba0c039
PH
1792PH/13 After a successful wildlsearch lookup, discard the values of numeric
1793 variables because (a) they are in the wrong storage pool and (b) even if
1794 they were copied, it wouldn't work properly because of the caching.
1795
a0d6ba8a
PH
1796PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1797 checking when decoding. Apparently there are clients that generate
1798 overlong encoded strings. Why am I not surprised?
1799
f0917727
PH
1800PH/15 If the first argument of "${if match_address" was not empty, but did not
1801 contain an "@" character, Exim crashed. Now it writes a panic log message
1802 and treats the condition as false.
1803
096fee00
PH
1804PH/16 In autoreply, treat an empty string for "once" the same as unset.
1805
024bd3c2
PH
1806PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1807 extension "envelope-auth". The code is finished and in agreement with
1808 other implementations, but there is no documentation so far and in fact,
1809 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1810 not changing the active code.
1811
1812 Print executed "if" and "elsif" statements when debugging is used. This
1813 helps a great deal to understand what a filter does.
1814
1815 Document more things not specified clearly in RFC3028. I had all this
1816 sorted out, when out of a sudden new issues came to my mind. Oops."
1817
df199fec
PH
1818PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1819 (Bugzilla #53).
1820
d27f1df3
PH
1821PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1822 canonical form (as documented). However, after a host name lookup from
1823 the IP address, check_host() was doing a simple string comparison with
1824 addresses acquired from the DNS when checking that the found name did
1825 have the original IP as one of its addresses. Since any found IPv6
1826 addresses are likely to be in abbreviated form, the comparison could
1827 fail. Luckily, there already exists a function for doing the comparison
1828 by converting both addresses to binary, so now that is used instead of
1829 the text comparison.
1830
96776534
PH
1831PH/20 There was another similar case to PH/19, when a complete host name was
1832 given in a host list; looking up its IP address could give an abbreviated
1833 form, whereas the current host's name might or might not be abbreviated.
1834 The same fix has been applied.
1835
5de37277 1836
9a799bc0
PH
1837Exim version 4.54
1838-----------------
1839
1840PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1841 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1842 It now does.
1843
99a4b039
PH
1844PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1845 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1846
1847PH/03 Typo: missing ".o" in src/pcre/Makefile.
1848
4b233853
PH
1849PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1850 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1851 Also, for "Auto-Submitted", treat anything other than "no" as
1852 non-personal, in accordance with RFC 3834. (Previously it treated
1853 anything starting "auto-" as non-personal.)
1854
8857ccfd
PH
1855TF/01 The control=submission/name=... option had a problem with syntax
1856 errors if the name included a slash character. The /name= option
1857 now slurps the rest of the string, so it can include any characters
1858 but it must come last in the list of options (after /sender_retain
1859 or /domain=).
1860
433a2980
PH
1861PH/05 Some modifications to the interface to the fake nameserver for the new
1862 testing suite.
1863
3e46c1aa 1864
9a799bc0 1865
e3a311ba
TK
1866Exim version 4.53
1867-----------------
1868
1869TK/01 Added the "success_on_redirect" address verification option. See
1870 NewStuff for rationale and an example.
1871
13b685f9
PH
1872PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1873
395ff96d
PH
1874PH/02 Patch to exigrep to allow it to work on syslog lines.
1875
5b68f6e4
PH
1876PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1877 fread() to skip over the body file's header line, because in Cygwin the
1878 header line is locked and is inaccessible.
1879
1ab52c69
PH
1880PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1881 co-exist for some time) to make it clear that it is the Exim ID that is
1882 referenced, not the Message-ID: header line.
1883
b07e6aa3
PH
1884PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1885 string_format() function, because snprintf() does not exist on all
1886 operating systems.
1887
254e032f
PH
1888PH/06 The use of forbid_filter_existstest now also locks out the use of the
1889 ${stat: expansion item.
1890
3af76a81
PH
1891PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1892 protocol synchronization error", to keep the pedants happy.
1893
2548ba04
PH
1894PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1895 well as for IRIX systems, when gcc is being used. See the host.c source
1896 file for comments.
1897
b6c6011d
PH
1898PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1899
cf39cf57
PH
1900PH/10 Named domain lists were not working if used in a queue_smtp_domains
1901 setting.
1902
f1513293
PH
1903PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1904 transport and to the smtp transport in LMTP mode.
1905
727549a4
PH
1906TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1907
af46795e
PH
1908PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1909 run a filter in a subprocess. This could lead to confusion in subsequent
1910 lookups in the parent process. There should also be a search_tidyup() at
1911 the end of the subprocess.
1912
d7b47fd0
PH
1913PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1914 only if the host matched helo_try_verify_hosts, which caused the
1915 verification to occur when the EHLO/HELO command was issued. The ACL just
1916 tested the remembered result. Now, if a previous verification attempt has
1917 not happened, "verify = helo" does it there and then.
1918
ee744174
JJ
1919JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1920
b582ab87
PH
1921TK/03 Fix log output including CR from clamd.
1922
41a13e0a
PH
1923PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1924 exist provoked a memory error which could cause a segfault.
1925
f625cc5a
PH
1926PH/15 Installed PCRE 6.2
1927
1928PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1929
21f7af35
PH
1930PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1931 of the problem. Specifically, suggested +O2 rather than +O1 for the
1932 HP-UX compiler.
1933
31480e42
PH
1934PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1935
2d280592
PH
1936PH/20 If a delivery was routed to a non-standard port by means of an SRV
1937 record, the port was not correctly logged when the outgoing_port log
1938 selector was set (it logged the transort's default port).
1939
7cd1141b
PH
1940PH/21 Added support for host-specific ports to manualroute, queryprogram,
1941 fallback_hosts, and "hosts" in the smtp transport.
1942
1943PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1944 host errors such as "Connection refused".
1945
750af86e
PH
1946PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1947 authentication with radiusclient 0.4.9:
1948
1949 - Error returned from rc_read_config was caught wrongly
1950 - Username/password not passed on to radius server due to wrong length.
1951
1952 The presumption is that some radiusclient API changes for 4.51/PH/17
1953 were not taken care of correctly. The code is still untested by me (my
1954 Linux distribution still has 0.3.2 of radiusclient), but it was
1955 contributed by a Radius user.
1956
1957PH/24 When doing a callout, the value of $domain wasn't set correctly when
1958 expanding the "port" option of the smtp transport.
1959
4304270b
TK
1960TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1961 while reading a MIME header. Thanks to Tom Hughes for a patch.
1962
750af86e
PH
1963PH/24 Include config.h inside local_scan.h so that configuration settings are
1964 available.
1965
64ffc24f
PH
1966PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1967 that in an ACL for RCPT (for example), you can examine exactly what was
1968 received.
1969
5dd9625b
PH
1970PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1971 commands, but it was not correctly comparing the address with the actual
1972 client host address. Thus, it would show the EHLO address in Received:
1973 header lines when this was not necessary.
1974
5591031b
PH
1975PH/27 Added the % operator to ${eval:}.
1976
ba18e66a
PH
1977PH/28 Exim tries to create and chdir to its spool directory when it starts;
1978 it should be ignoring failures (because with -C, for example, it has lost
1979 privilege). It wasn't ignoring creation failures other than "already
1980 exists".
1981
9cec981f
PH
1982PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1983 -bV or -d is used.
1984
aa2b5c79
PH
1985PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1986 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1987 too many continuations, the temporary file was not being removed, and the
1988 return code was incorrect.
aa2b5c79 1989
48a53b7f
PH
1990PH/31 Missing "BOOL" in function definition in filtertest.c.
1991
1c59d63b
PH
1992PH/32 Applied Sieve patches from the maintainer.
1993
671012da
TK
1994TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1995
1509d3a8
PH
1996PH/33 Added "verify = not_blind".
1997
1998PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1999 Local/Makefile (with some defaults set). These are used in built scripts
2000 such as exicyclog, but they have never been used in the exim_install
2001 script (though there are many overriding facilities there). I have
2002 arranged that the exim_install script now takes note of these two
2003 settings.
2004
2005PH/35 Installed configuration files for Dragonfly.
2006
2fe1a124
PH
2007PH/36 When a locally submitted message by a trusted user did not contain a
2008 From: header, and the sender address was obtained from -f or from an SMTP
2009 MAIL command, and the trusted user did not use -F to supply a sender
2010 name, $originator_name was incorrectly used when constructing a From:
2011 header. Furthermore, $originator_name was used for submission mode
2012 messages from external hosts without From: headers in a similar way,
2013 which is clearly wrong.
2014
8800895a
PH
2015PH/37 Added control=suppress_local_fixups.
2016
ccfdb010
PH
2017PH/38 When log_selector = +received_sender was set, and the addition of the
2018 sender made the log line's construction buffer exactly full, or one byte
2019 less than full, an overflow happened when the terminating "\n" was
2020 subsequently added.
2021
1130bfb0
PH
2022PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2023 when the result of a list match is failure because a DNS lookup failed.
2024
ebcb507f
PH
2025PH/40 RM_COMMAND is now used in the building process.
2026
c35e155c
PH
2027PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2028 the "build-* directories that it finds.
2029
95d1f782
PH
2030PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2031 address in a domain literal was a prefix of an interface address.
2032
fd6de02e
PH
2033PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2034 when verifying a sender address, unless rewrite_headers is false.
2035
58de37c5
PH
2036PH/44 Wrote a long comment about why errors_to addresses are verified as
2037 recipients, not senders.
2038
261cf466
TF
2039TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2040 the ratelimit ACL was added.
2041
3ee512ff
PH
2042PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2043
e08c430f
PH
2044PH/46 Added extra information about PostgreSQL errors to the error string.
2045
bef5a11f
PH
2046PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2047 avoiding the need to install special zones in a real server. This is
2048 backwards compatible; if it can't find the fake resolver, it drops back.
2049 Thus, both old and new test suites can be run.
2050
7546de58
TF
2051TF/02 Added util/ratelimit.pl
2052
e5d5a95f
TF
2053TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2054 clock is set back in time.
2055
2e88a017
TF
2056TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2057 Candler <B.Candler@pobox.com>.
2058
a5f65aa4
TF
2059TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2060 OK for addresses that are the result of redirections.
2061
e7726cbf
PH
2062PH/48 A number of further additions for the benefit of the new test suite,
2063 including a fake gethostbyname() that interfaces to the fake DNS resolver
2064 (see PH/47 above).
2065
a7fdad5b
TF
2066TF/06 The fix for widen_domains has also been applied to qualify_single and
2067 search_parents which are the other dnslookup options that can cause
2068 header rewrites.
2069
6af56900
PH
2070PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2071 type ("H").
2072
0925ede6
PH
2073PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2074
66afa403
TF
2075TF/07 Exim produced the error message "an SRV record indicated no SMTP
2076 service" if it encountered an MX record with an empty target hostname.
2077 The message is now "an MX or SRV record indicated no SMTP service".
2078
0154e85a
TF
2079TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2080 if the DNS of the sending site is misconfigured. This is quite a
2081 common situation. This change restores the behaviour of treating a
2082 helo verification defer as a failure.
2083
16f12c76
PH
2084PH/51 If self=fail was set on a router, the bounce message did not include the
2085 actual error message.
2086
bbe902f0 2087
e5a9dba6
PH
2088Exim version 4.52
2089-----------------
2090
2091TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2092
22c3b60b
PH
2093PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2094 command itself ended in error, the underlying message about the transport
2095 filter timeout was being overwritten with the pipe command error. Now the
2096 underlying error message should be appended to the second error message.
2097
06a9b4b5
PH
2098TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2099
c1ac6996
PH
2100PH/02 Reduce the amount of output that "make" produces by default. Full output
2101 can still be requested.
2102
9c7a242c
PH
2103PH/03 The warning log line about a condition test deferring for a "warn" verb
2104 was being output only once per connection, rather than after each
2105 occurrence (because it was using the same function as for successful
2106 "warn" verbs). This seems wrong, so I have changed it.
2107
87ba3f5f
PH
2108TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2109 it should not have, which might have caused a crash in the right
2110 circumstances, but probably never did.
2111
2112PH/04 Installed a modified version of Tony Finch's patch to make submission
2113 mode fix the return path as well as the Sender: header line, and to
2114 add a /name= option so that you can make the user's friendly name appear
2115 in the header line.
2116
29aba418
TF
2117TF/03 Added the control = fakedefer ACL modifier.
2118
fe0dab11
TF
2119TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2120 Mark Lowes for thorough testing.
870f6ba8 2121
11d337a4
TK
2122TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2123
2124TK/03 Merged latest SRS patch from Miles Wilton.
2125
415c8f3b
PH
2126PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2127 with the definition in sysexits.h (which is #included earlier).
2128 Fortunately, Exim does not actually use EX_OK. The code used to try to
2129 preserve the sysexits.h value, by assumimg that macro definitions were
2130 scanned for macro replacements. I have been disabused of this notion,
2131 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2132
958541e9
PH
2133PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2134 in the smtp transport. When a block could not be written in a single
2135 write() function, the timeout was being re-applied to each part-write.
2136 This seems wrong - if the receiver was accepting one byte at a time it
2137 would take for ever. The timeout is now adjusted when this happens. It
2138 doesn't have to be particularly precise.
2139
c206415f
TK
2140TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2141 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2142
2a4be8f9
PH
2143PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2144 without a domain if the check to <postmaster@domain> fails.
2145
1cba11c5
SC
2146SC/01 Eximstats: added -xls and the ability to specify output files
2147 (patch written by Frank Heydlauf).
2148
2149SC/02 Eximstats: use FileHandles for outputing results.
2150
2151SC/03 Eximstats: allow any combination of xls, txt, and html output.
2152
2153SC/04 Eximstats: fixed display of large numbers with -nvr option
2154
2155SC/05 Eximstats: fixed merging of reports with empty tables.
2156
2157SC/06 Eximstats: added the -include_original_destination flag
2158
2159SC/07 Eximstats: removed tabs and trailing whitespace.
2160
1005d00e
TK
2161TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2162
2163TK/06 MBOX spool code: Add real "From " MBOX separator line
2164 so the .eml file is really in mbox format (even though
2165 most programs do not really care). Patch from Alex Miller.
2166
2167TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2168 The latter is generated from $received_to and is only set if the
2169 message has one envelope recipient. SA can use these headers,
2170 obviously out-of-the-box. Patch from Alex Miller.
2171
9b4768fa
PH
2172PH/08 The ${def test on a variable was returning false if the variable's
2173 value was "0", contrary to what the specification has always said!
2174 The result should be true unless the variable is empty.
2175
2176PH/09 The syntax error of a character other than { following "${if
2177 def:variable_name" (after optional whitespace) was not being diagnosed.
2178 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2179 accidental colon was present, for example, could give incorrect results.
2180
0d7eb84a
PH
2181PH/10 Tidied the code in a number of places where the st_size field of a stat()
2182 result is used (not including appendfile, where other changes are about
2183 to be made).
2184
2185PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2186 This involved changing a lot of size variables from int to off_t. It
2187 should work with maildirs and everything.
2188
40727bee
TK
2189TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2190 spamd dying while we are connected to it.
2191
554d2369
TF
2192TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2193 <jgh@wizmail.org>
2194
1f922db1
PH
2195PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2196 function for BDB 4.3.
2197
ef213c3b
PH
2198PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2199
8ac170f3
PH
2200PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2201 the sources for PCRE have been re-arranged and more files are now
2202 involved.
2203
b1c749bb
PH
2204PH/15 The code I had for printing potentially long long variables in PH/11
2205 above was not the best (it lost precision). The length of off_t variables
2206 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2207 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2208 to be "long long int" or "long int". This is needed for the internal
2209 formatting function string_vformat().
b1c749bb 2210
4aac9b49
PH
2211PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2212 the configuration file to be ":syslog", then the script "guesses" where
2213 the logs files are, rather than using the compiled in default. In our
2214 case the guess is not the same as the compiled default, so the script
2215 suddenly stopped working when I started to use syslog. The patch checks
2216 to see if log_file_path is "". If so, it attempts to read it from exim
2217 with no configuration file to get the compiled in version, before it
2218 falls back to the previous guessing code."
2219
294520c8
TK
2220TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2221 implementing BATV in an Exim configuration. See NewStuff for the gory
2222 details.
2223
5bd022fe
PH
2224PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2225 Makefile that are specific to HP-UX.
2226
90e9ce59
PH
2227PH/18 If the "use_postmaster" option was set for a recipient callout together
2228 with the "random" option, the postmaster address was used as the MAIL
2229 FROM address for the random test, but not for the subsequent recipient
2230 test. It is now used for both.
2231
5ea81592
PH
2232PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2233 patch removes a few documentation additions to RFC 3028, because the
2234 latest draft now contains them. It adds the new en;ascii-case comparator
2235 and a new error check for 8bit text in MIME parts. Comparator and
2236 require names are now matched exactly. I enabled the subaddress
2237 extension, but it is not well tested yet (read: it works for me)."
2238
c6c2dc1d
PH
2239PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2240 rework some of the code of TK/09 above to avoid the hardwired use of
2241 "%lld" and "long long". Replaced the call to snprintf() with a call to
2242 string_vformat().
2243
fffffe4c
PH
2244PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2245 records point to non-existent hosts", "retry timeout exceeded", and
2246 "retry time not reached for any host after a long failure period".
ca02eafb 2247
9a26b6b2
PH
2248PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2249 experimental DomainKeys support:
2250
2251 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2252 (2) On an error such as an illegally used "control", the wrong name for
2253 the control was given.
2254
2255 These problems did NOT occur unless DomainKeys support was compiled.
2256
4aee0225
PH
2257PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2258
32d668a5
PH
2259PH/24 Added ${if match_ip condition.
2260
8187c3f3
PH
2261PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2262 databases so that it will be absolutely obvious if a crash occurs in the
2263 DB library. This is a regular occurrence (often caused by mis-matched
2264 db.h files).
2265
ff790e47 2266PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2267 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2268 picked up on a user's system that detects such things. There doesn't seem
2269 to be a gcc warning option for this - only an attribute that has to be
2270 put on the function's prototype. It seems that in Fedora Core 4 they have
2271 set this on a number of new functions. No doubt there will be more in due
2272 course.
ff790e47 2273
5417f6d1
PH
2274PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2275 specify a transport. However, if an address that was verified by such a
2276 router was the subject of a callout, Exim crashed because it tried to
2277 read the rcpt_include_affixes from the non-existent transport. Now it
2278 just assumes that the setting of that option is false. This bug was
2279 introduced by 4.51/PH/31.
2280
59cf8544
PH
2281PH/28 Changed -d+all to exclude +memory, because that information is very
2282 rarely of interest, but it makes the output a lot bigger. People tend to
2283 do -d+all out of habit.
2284
e7ad8a65
PH
2285PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2286 code in os-type was giving problems when libc.so lives in lib64, like on
2287 x86_64 Fedora Core.
2288
ade42478
PH
2289PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2290 aren't the modern standard, and it seems that some systems' include files
2291 don't always have them. Exim was already checking for some of the newer
2292 ones like T_AAAA, and defining it itself. I've added checks for all the
2293 record types that Exim uses.
2294
182ad5cf
PH
2295PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2296 not automatically generating a new one, as it is supposed to. This
2297 prevented TLS from working. If the file did exist, but contained invalid
2298 data, a new version was generated, as expected. It was only the case of a
2299 non-existent file that was broken.
2300
b0d9fc80
TK
2301TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2302 with a change in libdomainkeys > 0.64.
2303
2304TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2305 from DNS. If the selector record carries the flag, it now has
2306 precedence over the domain-wide flag.
2307
2308TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2309
47c7a64a
PH
2310PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2311 the use of a port name that isn't defined in /etc/services) occurred, the
2312 message was deferred as in a normal delivery, and thus remained on the
2313 spool, instead of being failed because of the mua_wrapper setting. This
2314 is now fixed, and I tidied up some of the mua_wrapper messages at the
2315 same time.
2316
a388bce4
SC
2317SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2318 the messages in a hash of arrays rather than using individual hashes.
2319 This is a bit cleaner and results in dramatic memory savings, albeit
2320 at a slight CPU cost.
2321
2322SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2323 as requested by Marc Sherman.
2324
2325SC/10 Eximstats: added histograms for user specified patterns as requested
2326 by Marc Sherman.
2327
0793e4ed
SC
2328SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2329
c58b88df
PH
2330PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2331 fopen() in the content-scanning modules that did not already have it.
2332
e7ad8a65 2333
7982096b
PH
2334Exim version 4.51
2335-----------------
2336
1a46a8c5
PH
2337TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2338 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2339
2f079f46 2340TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2341
2342TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2343
2344PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2345 to test Sieve filters that use "vacation".
2346
2347PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2348 that changes the way the GnuTLS parameters are stored in the cache file.
2349 The new format can be generated externally. For backward compatibility,
2350 if the data in the cache doesn't make sense, Exim assumes it has read an
2351 old-format file, and it generates new data and writes a new file. This
2352 means that you can't go back to an older release without removing the
2353 file.
2354
2355PH/03 A redirect router that has both "unseen" and "one_time" set does not
2356 work if there are any delivery delays because "one_time" forces the
2357 parent to be marked "delivered", so its unseen clone is never tried
2358 again. For this reason, Exim now forbids the simultaneous setting of
2359 these two options.
2360
2361PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2362 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2363 entry if you want to know the details. The fix, however, neglected to
2364 consider the case when local delivery batching is involved. The test for
2365 "previously delivered" was not happening when checking to see if an
2366 address could be batched with a previous (undelivered) one; under
2367 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2368 address.
1a46a8c5
PH
2369
2370PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2371 in its include files, and this causes problems building Exim.
2372
2373PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2374 header_syntax) but Exim was just ignoring anything given after a slash.
2375 In particular, this caused confusion with an attempt to use "verify =
2376 reverse_host_lookup/defer_ok". An error is now given when options are
2377 supplied for verify items that do not have them. (Maybe reverse_host_
2378 lookup should have a defer_ok option, but that's a different point.)
2379
2380PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2381 defined by RFC 821) to 2048, because there were problems with some AUTH
2382 commands, and RFC 1869 says the size should be increased for extended
2383 SMTP commands that take arguments.
2384
2385PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2386 Finch).
2387
2388PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2389 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2390
49c2d5ea
PH
2391PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2392 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2393 whatever). Otherwise the password may appear in the log. Following change
2394 PH/42 below, there is no longer a chance of it appearing in a bounce
2395 message.
49c2d5ea 2396
bf759a8b
PH
2397PH/11 Installed exipick version 20050225.0 from John Jetmore.
2398
83364d30
PH
2399PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2400 of its addresses was ever tried. (Bugzilla bug #2.)
2401
7999bbd7
PH
2402PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2403 the result incorrectly in the debug output. (It correctly added a newline
2404 to what was transported.)
2405
7dbf77c9
PH
2406TF/01 Added $received_time.
2407
74e0617f
PH
2408PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2409 commented out examples of how to interface to a virus scanner and to
2410 SpamAssassin. Also added commented examples of av_scanner and
2411 spamd_address settings.
2412
2f079f46
PH
2413PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2414 and controls are allowed in which ACLs. There were a couple of minor
2415 errors. Some of the entries in the conditions table (which is a table of
2416 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2417 negation of where the condition IS allowed.
2418
8c841523
PH
2419PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2420
7766a4f0
PH
2421PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2422 header file does not have a version number, so I've had to invent a new
2423 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2424 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2425 radiusclient), but it was contributed by a Radius user.
2426
8b417f2c
PH
2427PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2428 files or directories, for OpenSSL.
2429
901f42cb
PH
2430PH/19 When an Exim process that is running as root has to create an Exim log
2431 file, it does so in a subprocess that runs as exim:exim so as to get the
2432 ownership right at creation (otherwise, other Exim processes might see
2433 the file with the wrong ownership). There was no test for failure of this
2434 fork() call, which would lead to the process getting stuck as it waited
2435 for a non-existent subprocess. Forks do occasionally fail when resources
2436 run out. I reviewed all the other calls to fork(); they all seem to check
2437 for failure.
2438
f9b9210e
PH
2439PH/20 When checking for unexpected SMTP input at connect time (before writing
2440 the banner), Exim was not dealing correctly with a non-positive return
2441 from the read() function. If the client had disconnected by this time,
2442 the result was a log entry for a synchronization error with an empty
2443 string after "input=" when read() returned zero. If read() returned -1
2444 (an event I could not check), uninitialized data bytes were printed.
2445 There were reports of junk text (parts of files, etc) appearing after
2446 "input=".
2447
54cdb463
PH
2448PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2449
cf00dad6
PH
2450PH/22 Added support for macro redefinition, and (re)definition in between
2451 driver and ACL definitions.
2452
acb1b346
PH
2453PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2454 forgetting to use the resulting value; it was using the unexpanded value.
2455
c5ddb310
PH
2456PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2457 hadn't been configured. The fix is from Juergen Kreileder, who
2458 understands it better than I do:
2459
2460 "Here's what I see happening with three configured cyrus_sasl
2461 authenticators configured (plain, login, cram-md5):
2462
2463 On startup auth_cyrus_sasl_init() gets called for each of these.
2464 This means three calls to sasl_listmech() without a specified mech_list.
2465 => SASL tests which mechs of all available mechs actually work
2466 => three warnings about OTP not working
2467 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2468
2469 With the patch, sasl_listmech() also gets called three times. But now
2470 SASL's mech_list option is set to the server_mech specified in the the
2471 authenticator. Or in other words, the answer from sasl_listmech()
2472 gets limited to just the mech you're testing for (which is different
2473 for each call.)
2474 => the return list contains just 'plain' or 'login', 'cram-md5' or
2475 nothing depending on the value of ob->server_mech.
2476
2477 I've just tested the patch: Authentication still works fine,
2478 unavailable mechs specified in the exim configuration are still
2479 caught, and the auth.log warnings about OTP are gone."
2480
31619da6
PH
2481PH/25 When debugging is enabled, the contents of the command line are added
2482 to the debugging output, even when log_selector=+arguments is not
2483 specified.
2484
bebaf0fc
PH
2485PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2486 answer is "GNU", and only if the return is "GNU/something" is the answer
2487 "Linux".
2488
475fe28a
PH
2489PH/27 $acl_verify_message is now set immediately after the failure of a
2490 verification in an ACL, and so is available in subsequent modifiers. In
2491 particular, the message can be preserved by coding like this:
2492
2493 warn !verify = sender
2494 set acl_m0 = $acl_verify_message
2495
2496 Previously, $acl_verify_message was set only while expanding "message"
2497 and "log_message" when a very denied access.
2498
7e8bec7a
PH
2499PH/28 Modified OS/os.c-Linux with
2500
2501 -#ifndef OS_LOAD_AVERAGE
2502 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2503
2504 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2505 nomenclature these days.)
2506
e4a89c47
PH
2507PH/29 Installed patch from the Sieve maintainer that adds the options
2508 sieve_useraddress and sieve_subaddress to the redirect router.
2509
5ca2a9a1
PH
2510PH/30 In these circumstances:
2511 . Two addresses routed to the same list of hosts;
2512 . First host does not offer TLS;
2513 . First host accepts first address;
2514 . First host gives temporary error to second address;
2515 . Second host offers TLS and a TLS session is established;
2516 . Second host accepts second address.
2517 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2518 and peerdn, if requested) that were in fact used only for the second
2519 address.
7e8bec7a 2520
c688b954
PH
2521PH/31 When doing a callout as part of verifying an address, Exim was not paying
2522 attention to any local part prefix or suffix that was matched by the
2523 router that accepted the address. It now behaves in the same way as it
2524 does for delivery: the affixes are removed from the local part unless
2525 rcpt_include_affixes is set on the transport.
2526
fed77020
PH
2527PH/32 Add the sender address, as F=<...>, to the log line when logging a
2528 timeout during the DATA phase of an incoming message.
2529
7fe1560f
PH
2530PH/33 Sieve envelope tests were broken for match types other than :is. I have
2531 applied a patch sanctioned by the Sieve maintainer.
c688b954 2532
ebb6e6d5
PH
2533PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2534 the uid or gid is negative. A case of a negative gid caused this to be
2535 noticed. The fix allows for either to be negative.
2536
9c4e8f60
PH
2537PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2538 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2539 overlooked.
2540
2541PH/36 The change PH/12 above was broken. Fixed it.
2542
d7174846
PH
2543PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2544 the grounds that routing the same address twice would always produce the
2545 same answer. This might have been true once, but it is certainly no
2546 longer true now. Routing a child address may depend on the previous
2547 routing that produced that child. Some complicated redirection strategies
2548 went wrong when messages had multiple recipients, and made Exim's
2549 behaviour dependent on the order in which the addresses were given.
2550
2551 I have moved the duplicate checking until after the routing is complete.
2552 Exim scans the addresses that are assigned to local and remote
2553 transports, and removes any duplicates. This means that more work will be
2554 done, as duplicates will always all be routed, but duplicates are
2555 presumably rare, so I don't expect this is of any significance.
2556
2557 For deliveries to pipes, files, and autoreplies, the duplicate checking
2558 still happens during the routing process, since they are not going to be
2559 routed further.
2560
cfe75fc3
PH
2561PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2562 It corrects a timeout issue with spamd. This is Ian's comment: "The
2563 background is that sometimes spamd either never reads data from a
2564 connection it has accepted, or it never writes response data. The exiscan
2565 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2566 blindly assumes that writes won't block so it may never time out."
2567
be22d70e
PH
2568PH/39 Allow G after quota size as well as K and M.
2569
0612b098
PH
2570PH/40 The value set for $authenticated_id in an authenticator may not contain
2571 binary zeroes or newlines because the value is written to log lines and
2572 to spool files. There was no check on this. Now the value is run through
2573 the string_printing() function so that such characters are converted to
2574 printable escape sequences.
2575
2e0c1448
PH
2576PH/41 $message_linecount is a new variable that contains the total number of
2577 lines in the message. Compare $body_linecount, which is the count for the
2578 body only.
2579
447d236c
PH
2580PH/42 Exim no longer gives details of delivery errors for specific addresses in
2581 bounce and delay warning messages, except in certain special cases, which
2582 are as follows:
2583
2584 (a) An SMTP error message from a remote host;
2585 (b) A message specified in a :fail: redirection;
2586 (c) A message specified in a "fail" command in a system filter;
2587 (d) A message specified in a FAIL return from the queryprogram router;
2588 (e) A message specified by the cannot_route_message router option.
2589
2590 In these cases only, Exim does include the error details in bounce and
2591 warning messages. There are also a few cases where bland messages such
2592 as "unrouteable address" or "local delivery error" are given.
2593
d20976dc
PH
2594PH/43 $value is now also set for the "else" part of a ${run expansion.
2595
f656d135
PH
2596PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2597 being worked on, but at least Exim now implements the latest version to
2598 play with."
2599
2e2a30b4
PH
2600PH/45 In a pipe transport, although a timeout while waiting for the pipe
2601 process to complete was treated as a delivery failure, a timeout while
2602 writing the message to the pipe was logged, but erroneously treated as a
2603 successful delivery. Such timeouts include transport filter timeouts. For
2604 consistency with the overall process timeout, these timeouts are now
2605 treated as errors, giving rise to delivery failures by default. However,
2606 there is now a new Boolean option for the pipe transport called
2607 timeout_defer, which, if set TRUE, converts the failures into defers for
2608 both kinds of timeout. A transport filter timeout is now identified in
2609 the log output.
2610
9176e9f0
PH
2611PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2612 systems where "make" and "gmake" are different, calling "gmake" at top
2613 level broke things. I've arranged for the value of $(MAKE) to be passed
2614 from the Makefile to this script so that it can call the same version of
2615 "make".
2616
7982096b 2617
bbe902f0
PH
2618A note about Exim versions 4.44 and 4.50
2619----------------------------------------
2620
2621Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2622changes of various kinds. As a consequence, a big documentation update was
2623needed. This delayed the release for rather longer than seemed good, especially
2624in the light of a couple of (minor) security issues. Therefore, the changes
2625that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2626release. So 4.44 and 4.50 are in effect two different branches that both start
2627from 4.43.
2628
2629I have left the 4.50 change log unchanged; it contains all the changes since
26304.43. The change log for 4.44 is below; many of its items are identical to
2631those for 4.50. This seems to be the most sensible way to preserve the
2632historical information.
2633
2634
f7b63901 2635Exim version 4.50
495ae4b0
PH
2636-----------------
2637
5fe762f6
PH
2638 1. Minor wording change to the doc/README.SIEVE file.
2639
139059f6 2640 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2641 computation of the current number of files was incorrect.
495ae4b0 2642
7086e875
PH
2643 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2644 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2645 place.
2646
35af9f61
PH
2647 4. Give more explanation in the error message when the command for a transport
2648 filter fails to execute.
2649
b668c215
PH
2650 5. There are several places where Exim runs a non-Exim command in a
2651 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2652 was being done only for the command run by the queryprogram router. It is
2653 now done for all such subprocesses. The other cases are: ${run, transport
2654 filters, and the commands run by the lmtp and pipe transports.
2655
a494b1e1
PH
2656 6. Added CONFIGURE_GROUP build-time option.
2657
2658 7. Some older OS have a limit of 256 on the maximum number of file
2659 descriptors. Exim was using setrlimit() to set 1000 as a large value
2660 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2661 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2662
c5fcb476
PH
2663 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2664 was an oversight, and furthermore, ever since the addition of extra
2665 controls (e.g. 4.43/32), the checks on when to allow different forms of
2666 "control" were broken. There should now be diagnostics for all cases when a
2667 control that does not make sense is encountered.
2668
69358f02
PH
2669 9. Added the /retain_sender option to "control=submission".
2670
5be20824
PH
267110. $recipients is now available in the predata ACL (oversight).
2672
eb2c0248
PH
267311. Tidy the search cache before the fork to do a delivery from a message
2674 received from the command line. Otherwise the child will trigger a lookup
2675 failure and thereby defer the delivery if it tries to use (for example) a
2676 cached ldap connection that the parent has called unbind on.
2677
2a3eea10
PH
267812. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2679 of $address_data from the recipient verification was clobbered by the
2680 sender verification.
2681
268213. The value of address_data from a sender verification is now available in
2683 $sender_address_data in subsequent conditions in the ACL statement.
2684
23c7ff99
PH
268514. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2686
4deaf07d
PH
268715. Added a new option "connect=<time>" to callout options, to set a different
2688 connection timeout.
2689
926e1192
PH
269016. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2691 was its contents. (It was OK if the option was not defined at all.)
2692
650edc6f
PH
269317. A "Completed" log line is now written for messages that are removed from
2694 the spool by the -Mrm option.
2695
2c7db3f5
PH
269618. New variables $sender_verify_failure and $recipient_verify_failure contain
2697 information about exactly what failed.
2698
3d235903
PH
269919. Added -dd to debug only the daemon process.
2700
7c7ad977
PH
270120. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2702 handles timeouts, both on the server side and network timeouts. Renamed the
2703 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2704
981756db
PH
270521. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2706 It is now set to "smtps".
2707
d4eb88df
PH
270822. $host_address is now set to the target address during the checking of
2709 ignore_target_hosts.
2710
271123. When checking ignore_target_hosts for an ipliteral router, no host name was
2712 being passed; this would have caused $sender_host_name to have been used if
2713 matching the list had actually called for a host name (not very likely,
2714 since this list is usually IP addresses). A host name is now passed as
2715 "[x.x.x.x]".
2716
7d468ab8
PH
271724. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2718 code that specifies a non-restarting handler (typically sigaction() in
2719 modern systems) in an attempt to fix a rare and obscure crash bug.
2720
272125. Narrowed the window for a race in the daemon that could cause it to ignore
2722 SIGCHLD signals. This is not a major problem, because they are used only to
2723 wake it up if nothing else does.
2724
62c0818f
PH
272526. A malformed maildirsize file could cause Exim to calculate negative values
2726 for the mailbox size or file count. Odd effects could occur as a result.
2727 The maildirsize information is now recalculated if the size or filecount
2728 end up negative.
2729
26034054
PH
273027. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2731 support for a long time. Removed HAVE_SYS_VFS_H.
2732
af66f652
PH
273328. Installed the latest version of exipick from John Jetmore.
2734
90af77f4
PH
273529. In an address list, if the pattern was not a regular expression, an empty
2736 subject address (from a bounce message) matched only if the pattern was an
2737 empty string. Non-empty patterns were not even tested. This was the wrong
2738 because it is perfectly reasonable to use an empty address as part of a
2739 database query. An empty address is now tested by patterns that are
2740 lookups. However, all the other forms of pattern expect the subject to
2741 contain a local part and a domain, and therefore, for them, an empty
2742 address still always fails if the pattern is not itself empty.
2743
d8ef3577
PH
274430. Exim went into a mad DNS loop when attempting to do a callout where the
2745 host was specified on an smtp transport, and looking it up yielded more
2746 than one IP address.
2747
5cb8cbc6
PH
274831. Re-factored the code for checking spool and log partition space into a
2749 function that finds that data and another that does the check. The former
2750 is then used to implement four new variables: $spool_space, $log_space,
2751 $spool_inodes, and $log_inodes.
2752
14702f5b
PH
275332. The RFC2047 encoding function was originally intended for short strings
2754 such as real names; it was not keeping to the 75-character limit for
2755 encoded words that the RFC imposes. It now respects the limit, and
2756 generates multiple encoded words if necessary. To be on the safe side, I
2757 have increased the buffer size for the ${rfc2047: expansion operator from
2758 1024 to 2048 bytes.
2759
063b1e99
PH
276033. It is now permitted to omit both strings after an "if" condition; if the
2761 condition is true, the result is "true". As before, when the second string
2762 is omitted, a false condition yields an empty string. This makes it less
2763 cumbersome to write custom ACL and router conditions.
2764
652e1b65
PH
276534. Failure to deliver a bounce message always caused it to be frozen, even if
2766 there was an errors_to setting on the router. The errors_to setting is now
2767 respected.
2768
6f0c9a4f
PH
276935. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2770 canonical form (fully expanded) before being placed in
2771 $sender_host_address.
2772
33397d19
PH
277336. The table in the code that translates DNS record types into text (T_A to
2774 "A" for instance) was missing entries for NS and CNAME. It is just possible
2775 that this could have caused confusion if both these types were looked up
2776 for the same domain, because the text type is used as part of Exim's
2777 per-process caching. But the chance of anyone hitting this buglet seems
2778 very small.
2779
7bb56e1f
PH
278037. The dnsdb lookup has been extended in a number of ways.
2781
2782 (1) There is a new type, "zns", which walks up the domain tree until it
2783 finds some nameserver records. It should be used with care.
2784
ea3bc19b
PH
2785 (2) There is a new type, "mxh", which is like "mx" except that it returns
2786 just the host names, not the priorities.
2787
2788 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2789 looked up. The behaviour when one of the lookups defers can be
2790 controlled by a keyword.
7bb56e1f 2791
ea3bc19b 2792 (4) It is now possible to specify the separator character for use when
7bb56e1f 2793 multiple records are returned.
33397d19 2794
0bcb2a0e
PH
279538. The dnslists ACL condition has been extended: it is now possible to supply
2796 a list of IP addresses and/or domains to be looked up in a particular DNS
2797 domain.
2798
2ac0e484
PH
279939. Added log_selector=+queue_time_overall.
2800
4e1fde53
PH
280140. When running the queue in the test harness, wait just a tad after forking a
2802 delivery process, to get repeatability of debugging output.
2803
de365ded
PH
280441. Include certificate and key file names in error message when GnuTLS fails
2805 to set them up, because the GnuTLS error message doesn't include the name
2806 of the failing file when there is a problem reading it.
2807
f05da2e8
PH
280842. Allow both -bf and -bF in the same test run.
2809
d6453af2
PH
281043. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2811
f7b63901
PH
281244. The "Exiscan patch" is now merged into the mainline Exim source.
2813
281445. Sometimes the final signoff response after QUIT could fail to get
2815 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2816 < 0 before doing a fflush(). This bug looks as though it goes back to the
2817 introduction of TLS in release 3.20, but "sometimes" must have been rare
2818 because the tests only now provoked it.
2819
a444213a
PH
282046. Reset the locale to "C" after calling embedded Perl, in case it was changed
2821 (this can affect the format of dates).
2822
0ec020ea
PH
282347. exim_tidydb, when checking for the continued existence of a message for
2824 which it has found a message-specific retry record, was not finding
2825 messages that were in split spool directories. Consequently, it was
2826 deleting retry records that should have stayed in existence.
2827
b1206957
PH
282848. Steve fixed some bugs in eximstats.
2829
283049. The SPA authentication driver was not abandoning authentication and moving
2831 on to the next authenticator when an expansion was forced to fail,
2832 contradicting the general specification for all authenticators. Instead it
2833 was generating a temporary error. It now behaves as specified.
2834
26dd5a95
PH
283550. The default ordering of permitted cipher suites for GnuTLS was pessimal
2836 (the order specifies the preference for clients). The order is now AES256,
2837 AES128, 3DES, ARCFOUR128.
2838
343b2385
PH
283951. Small patch to Sieve code - explicitly set From: when generating an
2840 autoreply.
2841
1c5466b9
PH
284252. Exim crashed if a remote delivery caused a very long error message to be
2843 recorded - for instance if somebody sent an entire SpamAssassin report back
2844 as a large number of 550 error lines. This bug was coincidentally fixed by
2845 increasing the size of one of Exim's internal buffers (big_buffer) that
2846 happened as part of the Exiscan merge. However, to be on the safe side, I
2847 have made the code more robust (and fixed the comments that describe what
2848 is going on).
2849
55ee9ee3
PH
285053. Now that there can be additional text after "Completed" in log lines (if
2851 the queue_time_overall log selector is set), a one-byte patch to exigrep
2852 was needed to allow it to recognize "Completed" as not the last thing in
2853 the line.
2854
d38f8232
PH
285554. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2856 patch that reportedly fixes this has been added. I am not expert enough to
2857 create a test for it. This is what the patch creator wrote:
2858
2859 "I found a little strange behaviour of ldap code when working with
2860 Windows 2003 AD Domain, where users was placed in more than one
2861 Organization Units. When I tried to give exim partial DN, the exit code
2862 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2863 But simultaneously result of request was absolutely normal ldap result,
2864 so I produce this patch..."
2865
3295e65b
PH
2866 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2867 REFERENCE, so I have modified the code to exclude the patch when that macro
2868 is not defined.
2869
7102e136
PH
287055. Some experimental protocols are using DNS PTR records for new purposes. The
2871 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2872 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2873 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2874 CAN-2005-0021
7102e136 2875
3ca0ba97
PH
287656. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2877
c2bcbe20
PH
287857. Double the size of the debug message buffer (to 2048) so that more of very
2879 long debug lines gets shown.
2880
18ce445d
PH
288158. The exicyclog utility now does better if the number of log files to keep
2882 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2883
1f5b4c3d
PH
288459. Two changes related to the smtp_active_hostname option:
2885
2886 (1) $smtp_active_hostname is now available as a variable.
2887 (2) The default for smtp_banner uses $smtp_active_hostname instead
2888 of $primary_hostname.
2889
b975ba52
PH
289060. The host_aton() function is supposed to be passed a string that is known
2891 to be a valid IP address. However, in the case of IPv6 addresses, it was
2892 not checking this. This is a hostage to fortune. Exim now panics and dies
2893 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2894 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2895 components; fortuitously, this particular loophole had already been fixed
2896 by change 4.50/55 above.
2897
2898 If there are any other similar loopholes, the new check in host_aton()
2899 itself should stop them being exploited. The report I received stated that
2900 data on the command line could provoke the exploit when Exim was running as
2901 exim, but did not say which command line option was involved. All I could
2902 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2903 running as the user.
ea3a6f44 2904 CAN-2005-0021
85b87bc2
PH
2905
290661. There was a buffer overflow vulnerability in the SPA authentication code
2907 (which came originally from the Samba project). I have added a test to the
2908 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2909 CAN-2005-0022
b975ba52 2910
17ffcae7
PH
291162. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2912 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2913
d95f9fdb
PH
291463. The daemon start-up calls getloadavg() while still root for those OS that
2915 need the first call to be done as root, but it missed one case: when
2916 deliver_queue_load_max is set with deliver_drop_privilege. This is
2917 necessary for the benefit of the queue runner, because there is no re-exec
2918 when deliver_drop_privilege is set.
2919
86b8287f
PH
292064. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2921 This has been fixed.
2922
60dc5e56
PH
292365. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2924 was in use, was not putting the data itself into the right store pool;
2925 consequently, it could be overwritten for a subsequent message in the same
2926 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2927 the caching.)
2928
533244af
PH
292966. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2930
a5a28604
PH
293167. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2932 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2933 the function were treating the return as a boolean value, which happened to
2934 work because 0=false and not-0=true, but is not correct code.
2935
7e634d24
PH
293668. The host_aton() function was not handling scoped IPv6 addresses (those
2937 with, for example, "%eth0" on the end) correctly.
2938
3e11c26b
PH
293969. Fixed some compiler warnings in acl.c for the bitmaps specified with
2940 negated items (that is, ~something) in unsigned ints. Some compilers
2941 apparently mutter when there is no cast.
2942
6729cf78
PH
294370. If an address verification called from an ACL failed, and did not produce a
2944 user-specific message (i.e. there was only a "system" message), nothing was
2945 put in $acl_verify_message. In this situation, it now puts the system
2946 message there.
2947
00f00ca5
PH
294871. Change 4.23/11 added synchronization checking at the start of an SMTP
2949 session; change 4.31/43 added the unwanted input to the log line - except
2950 that it did not do this in the start of session case. It now does.
2951
c9bdd01c
PH
295272. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2953 This is wrong and can cause the other end to generate a synchronization
2954 error if it is another Exim or anything else that does the synchronization
2955 check. A QUIT command is no longer sent after a timeout.
2956
d43194df
PH
295773. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2958 during host lookups.
2959
fe5b5d0b
PH
296074. The defer_ok option of callout verification was not working if it was used
2961 when verifying addresses in header lines, that is, for this case:
2962
2963 verify = header_sender/callout=defer_ok
2964
76a2d7ba
PH
296575. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2966 those file descriptors could be used for SMTP connections. If anything
2967 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2968 could be sent to the SMTP client, causing chaos. The daemon now opens
2969 stdin, stdout, and stderr to /dev/null when it puts itself into the
2970 background.
2971
297276. Arrange for output from Perl's "warn" command to be written to Exim's main
2973 log by default. The user can override this with suitable Perl magic.
2974
04f7d5b9
PH
297577. The use of log_message on a "discard" ACL verb, which is supposed to add to
2976 the log message when discard triggers, was not working for the DATA ACL or
2977 for the non-SMTP ACL.
2978
bc60667e
PH
297978. Error message wording change in sieve.c.
2980
bb6e88ff
PH
298179. If smtp_accept_max_per_host was set, the number of connections could be
2982 restricted to fewer than expected, because the daemon was trying to set up
2983 a new connection before checking whether the processes handling previous
2984 connections had finished. The check for completed processes is now done
2985 earlier. On busy systems, this bug wouldn't be noticed because something
2986 else would have woken the daemon, and it would have reaped the completed
2987 process earlier.
2988
1e70f85b
PH
298980. If a message was submitted locally by a user whose login name contained one
2990 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2991 It caused a spool format error. I have fixed the spool reading code. A
2992 related problem was that the "from" clause in the Received: line became
2993 illegal because of the space(s). It is now covered by ${quote_local_part.
2994
299581. Included the latest eximstats from Steve (adds average sizes to HTML Top
2996 tables).
2997
4e01f9d6
PH
299882. Updated OS/Makefile-AIX as per message from Mike Meredith.
2999
1ee1cef2
PH
300083. Patch from Sieve maintainer to fix unterminated string problem in
3001 "vacation" handling.
3002
6e2b4ccc
PH
300384. Some minor changes to the Linux configuration files to help with other
3004 OS variants using glibc.
3005
8e669ac1
PH
300685. One more patch for Sieve to update vacation handling to latest spec.
3007
495ae4b0 3008
bbe902f0
PH
3009----------------------------------------------------
3010See the note above about the 4.44 and 4.50 releases.
3011----------------------------------------------------
3012
3013
3014Exim version 4.44
3015-----------------
3016
3017 1. Change 4.43/35 introduced a bug that caused file counts to be
3018 incorrectly computed when quota_filecount was set in an appendfile
3019 transport
3020
3021 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3022 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3023 place.
3024
3025 3. Give more explanation in the error message when the command for a transport
3026 filter fails to execute.
3027
3028 4. There are several places where Exim runs a non-Exim command in a
3029 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3030 was being done only for the command run by the queryprogram router. It is
3031 now done for all such subprocesses. The other cases are: ${run, transport
3032 filters, and the commands run by the lmtp and pipe transports.
3033
3034 5. Some older OS have a limit of 256 on the maximum number of file
3035 descriptors. Exim was using setrlimit() to set 1000 as a large value
3036 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3037 systems. I've change it so that if it can't get 1000, it tries for 256.
3038
3039 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3040 was an oversight, and furthermore, ever since the addition of extra
3041 controls (e.g. 4.43/32), the checks on when to allow different forms of
3042 "control" were broken. There should now be diagnostics for all cases when a
3043 control that does not make sense is encountered.
3044
3045 7. $recipients is now available in the predata ACL (oversight).
3046
3047 8. Tidy the search cache before the fork to do a delivery from a message
3048 received from the command line. Otherwise the child will trigger a lookup
3049 failure and thereby defer the delivery if it tries to use (for example) a
3050 cached ldap connection that the parent has called unbind on.
3051
3052 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3053 of $address_data from the recipient verification was clobbered by the
3054 sender verification.
3055
305610. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3057 was its contents. (It was OK if the option was not defined at all.)
3058
305911. A "Completed" log line is now written for messages that are removed from
3060 the spool by the -Mrm option.
3061
306212. $host_address is now set to the target address during the checking of
3063 ignore_target_hosts.
3064
306513. When checking ignore_target_hosts for an ipliteral router, no host name was
3066 being passed; this would have caused $sender_host_name to have been used if
3067 matching the list had actually called for a host name (not very likely,
3068 since this list is usually IP addresses). A host name is now passed as
3069 "[x.x.x.x]".
3070
307114. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3072 code that specifies a non-restarting handler (typically sigaction() in
3073 modern systems) in an attempt to fix a rare and obscure crash bug.
3074
307515. Narrowed the window for a race in the daemon that could cause it to ignore
3076 SIGCHLD signals. This is not a major problem, because they are used only to
3077 wake it up if nothing else does.
3078
307916. A malformed maildirsize file could cause Exim to calculate negative values
3080 for the mailbox size or file count. Odd effects could occur as a result.
3081 The maildirsize information is now recalculated if the size or filecount
3082 end up negative.
3083
308417. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3085 support for a long time. Removed HAVE_SYS_VFS_H.
3086
ea3a6f44 308718. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3088
308919. Allow an empty sender to be matched against a lookup in an address list.
3090 Previously the only cases considered were a regular expression, or an
3091 empty pattern.
3092
309320. Exim went into a mad DNS lookup loop when doing a callout where the
3094 host was specified on the transport, if the DNS lookup yielded more than
3095 one IP address.
3096
ea3a6f44
NM
309721. The RFC2047 encoding function was originally intended for short strings
3098 such as real names; it was not keeping to the 75-character limit for
3099 encoded words that the RFC imposes. It now respects the limit, and
3100 generates multiple encoded words if necessary. To be on the safe side, I
3101 have increased the buffer size for the ${rfc2047: expansion operator from
3102 1024 to 2048 bytes.
bbe902f0 3103
ea3a6f44
NM
310422. Failure to deliver a bounce message always caused it to be frozen, even if
3105 there was an errors_to setting on the router. The errors_to setting is now
3106 respected.
bbe902f0
PH
3107
310823. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3109 canonical form (fully expanded) before being placed in
3110 $sender_host_address.
3111
311224. Updated eximstats to version 1.33
3113
ea3a6f44
NM
311425. Include certificate and key file names in error message when GnuTLS fails
3115 to set them up, because the GnuTLS error message doesn't include the name
3116 of the failing file when there is a problem reading it.
bbe902f0
PH
3117
311826. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3119 As per change 25.
bbe902f0 3120
ea3a6f44
NM
312127. Reset the locale to "C" after calling embedded Perl, in case it was changed
3122 (this can affect the format of dates).
bbe902f0 3123
ea3a6f44
NM
312428. exim_tidydb, when checking for the continued existence of a message for
3125 which it has found a message-specific retry record, was not finding
3126 messages that were in split spool directories. Consequently, it was
3127 deleting retry records that should have stayed in existence.
bbe902f0
PH
3128
312929. eximstats updated to version 1.35
3130 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3131 1.35 - bugfix such that pie charts by volume are generated correctly
3132
ea3a6f44
NM
313330. The SPA authentication driver was not abandoning authentication and moving
3134 on to the next authenticator when an expansion was forced to fail,
3135 contradicting the general specification for all authenticators. Instead it
3136 was generating a temporary error. It now behaves as specified.
bbe902f0 3137
ea3a6f44
NM
313831. The default ordering of permitted cipher suites for GnuTLS was pessimal
3139 (the order specifies the preference for clients). The order is now AES256,
3140 AES128, 3DES, ARCFOUR128.
bbe902f0 3141
ea3a6f44
NM
314231. Small patch to Sieve code - explicitly set From: when generating an
3143 autoreply.
bbe902f0 3144
ea3a6f44
NM
314532. Exim crashed if a remote delivery caused a very long error message to be
3146 recorded - for instance if somebody sent an entire SpamAssassin report back
3147 as a large number of 550 error lines. This bug was coincidentally fixed by
3148 increasing the size of one of Exim's internal buffers (big_buffer) that
3149 happened as part of the Exiscan merge. However, to be on the safe side, I
3150 have made the code more robust (and fixed the comments that describe what
3151 is going on).
bbe902f0 3152
ea3a6f44
NM
315333. Some experimental protocols are using DNS PTR records for new purposes. The
3154 keys for these records are domain names, not reversed IP addresses. The
3155 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3156 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3157 CAN-2005-0021
3158
ea3a6f44
NM
315934. The host_aton() function is supposed to be passed a string that is known
3160 to be a valid IP address. However, in the case of IPv6 addresses, it was
3161 not checking this. This is a hostage to fortune. Exim now panics and dies
3162 if the condition is not met. A case was found where this could be provoked
3163 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3164 components; fortuitously, this particular loophole had already been fixed
3165 by change 4.50/55 or 4.44/33 above.
3166
3167 If there are any other similar loopholes, the new check in host_aton()
3168 itself should stop them being exploited. The report I received stated that
3169 data on the command line could provoke the exploit when Exim was running as
3170 exim, but did not say which command line option was involved. All I could
3171 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3172 running as the user.
bbe902f0
PH
3173 CAN-2005-0021
3174
ea3a6f44
NM
317535. There was a buffer overflow vulnerability in the SPA authentication code
3176 (which came originally from the Samba project). I have added a test to the
3177 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3178 CAN-2005-0022
3179
ea3a6f44
NM
318036. The daemon start-up calls getloadavg() while still root for those OS that
3181 need the first call to be done as root, but it missed one case: when
3182 deliver_queue_load_max is set with deliver_drop_privilege. This is
3183 necessary for the benefit of the queue runner, because there is no re-exec
3184 when deliver_drop_privilege is set.
bbe902f0 3185
ea3a6f44
NM
318637. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3187 was in use, was not putting the data itself into the right store pool;
3188 consequently, it could be overwritten for a subsequent message in the same
3189 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3190 the caching.)
bbe902f0 3191
ea3a6f44
NM
319238. Sometimes the final signoff response after QUIT could fail to get
3193 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3194 < 0 before doing a fflush(). This bug looks as though it goes back to the
3195 introduction of TLS in release 3.20, but "sometimes" must have been rare
3196 because the tests only now provoked it.
bbe902f0
PH
3197
3198
495ae4b0
PH
3199Exim version 4.43
3200-----------------
3201
3202 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3203 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3204 Now it returns an integer. A number of calls were still expecting a T/F
3205 return. Fortuitously, in all cases, the tests worked in OK situations,
3206 which is the norm. However, things would have gone wrong on any write
3207 failures on the smtp file descriptor. This function is used when sending
3208 messages over SMTP and also when doing verify callouts.
3209
3210 2. When Exim is called to do synchronous delivery of a locally submitted
3211 message (the -odf or -odi options), it no longer closes stderr before doing
3212 the delivery.
3213
3214 3. Implemented the mua_wrapper option.
3215
3216 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3217
3218 5. Implemented the functions header_remove(), header_testname(),
3219 header_add_at_position(), and receive_remove_recipient(), and exported them
3220 to local_scan().
3221
3222 6. If an ACL "warn" statement specified the addition of headers, Exim already
3223 inserted X-ACL-Warn: at the start if there was no header name. However, it
3224 was not making this test for the second and subsequent header lines if
3225 there were newlines in the string. This meant that an invalid header could
3226 be inserted if Exim was badly configured.
3227
3228 7. Allow an ACL "warn" statement to add header lines at the start or after all
3229 the Received: headers, as well as at the end.
3230
3231 8. Added the rcpt_4xx retry error code.
3232
3233 9. Added postmaster_mailfrom=xxx to callout verification option.
3234
323510. Added mailfrom=xxxx to the callout verification option, for verify=
3236 header_sender only.
3237
323811. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3239 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3240
324112. Inserted some casts to stop certain compilers warning when using pointer
3242 differences as field lengths or precisions in printf-type calls (mostly
3243 affecting debugging statements).
3244
324513. Added optional readline() support for -be (dynamically loaded).
3246
324714. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3248 same clock tick as a message's arrival, so that its received time was the
3249 same as the "first fail" time on the retry record, and that message
3250 remained on the queue past the ultimate address timeout, every queue runner
3251 would try a delivery (because it was past the ultimate address timeout) but
3252 after another failure, the ultimate address timeout, which should have then
3253 bounced the address, did not kick in. This was a "< instead of <=" error;
3254 in most cases the first failure would have been in the next clock tick
3255 after the received time, and all would be well.
3256
325715. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3258 being recognized when the domain list was tested by the match_domain
3259 condition in an expansion string.
3260
326116. Added the ${str2b64: operator.
3262
326317. Exim was always calling setrlimit() to set a large limit for the number of
3264 processes, without checking whether the existing limit was already
3265 adequate. (It did check for the limit on file descriptors.) Furthermore,
3266 errors from getrlimit() and setrlimit() were being ignored. Now they are
3267 logged to the main and panic logs, but Exim does carry on, to try to do its
3268 job under whatever limits there are.
3269
327018. Imported PCRE 5.0.
3271
327219. Trivial typo in log message " temporarily refused connection" (the leading
3273 space).
3274
327520. If the log selector return_path_on_delivery was set and an address was
3276 redirected to /dev/null, the delivery process crashed because it assumed
3277 that a return path would always be set for a "successful" delivery. In this
3278 case, the whole delivery is bypassed as an optimization, and therefore no
3279 return path is set.
3280
328121. Internal re-arrangement: the function for sending a challenge and reading
3282 a response while authentication was assuming a zero-terminated challenge
3283 string. It's now changed to take a pointer and a length, to allow for
3284 binary data in such strings.
3285
328622. Added the cyrus_sasl authenticator (code supplied by MBM).
3287
328823. Exim was not respecting finduser_retries when seeking the login of the
3289 uid under which it was called; it was always trying 10 times. (The default
3290 setting of finduser_retries is zero.) Also, it was sleeping after the final
3291 failure, which is pointless.
3292
329324. Implemented tls_on_connect_ports.
3294
329525. Implemented acl_smtp_predata.
3296
329726. If the domain in control=submission is set empty, Exim assumes that the
3298 authenticated id is a complete email address when it generates From: or
3299 Sender: header lines.
3300
330127. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3302 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3303 chown and chgrp in /bin and hostname in /usr/bin.
3304
330528. Exim was keeping the "process log" file open after each use, just as it
3306 does for the main log. This opens the possibility of it remaining open for
3307 long periods when the USR1 signal hits a daemon. Occasional processlog
3308 errors were reported, that could have been caused by this. Anyway, it seems
3309 much more sensible not to leave this file open at all, so that is what now
3310 happens.
3311
331229. The long-running daemon process does not normally write to the log once it
3313 has entered its main loop, and it closes the log before doing so. This is
3314 so that log files can straightforwardly be renamed and moved. However,
3315 there are a couple of unusual error situations where the daemon does write
3316 log entries, and I had neglected to close the log afterwards.
3317
331830. The text of an SMTP error response that was received during a remote
3319 delivery was being truncated at 512 bytes. This is too short for some of
3320 the long messages that one sometimes sees. I've increased the limit to
3321 1024.
3322
332331. It is now possible to make retry rules that apply only when a message has a
3324 specific sender, in particular, an empty sender.
3325
332632. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3327 it possible to be selective about when SMTP synchronization is enforced.
3328
332933. Added "control = caseful_local_part" and "control = "caselower_local_part".
3330
333132. Implemented hosts_connection_nolog.
3332
333333. Added an ACL for QUIT.
3334
333534. Setting "delay_warning=" to disable warnings was not working; it gave a
3336 syntax error.
3337
333835. Added mailbox_size and mailbox_filecount to appendfile.
3339
334036. Added control = no_multiline_responses to ACLs.
3341
334237. There was a bug in the logic of the code that waits for the clock to tick
3343 in the case where the clock went backwards by a substantial amount such
3344 that the microsecond fraction of "now" was more than the microsecond
3345 fraction of "then" (but the whole seconds number was less).
3346
334738. Added support for the libradius Radius client library this is found on
3348 FreeBSD (previously only the radiusclient library was supported).
3349
3350
3351Exim version 4.42
3352-----------------
3353
3354 1. When certain lookups returned multiple values in the form name=value, the
3355 quoting of the values was not always being done properly. Specifically:
3356 (a) If the value started with a double quote, but contained no whitespace,
3357 it was not quoted.
3358 (b) If the value contained whitespace other than a space character (i.e.
3359 tabs or newlines or carriage returns) it was not quoted.
3360 This fix has been applied to the mysql and pgsql lookups by writing a
3361 separate quoting function and calling it from the lookup code. The fix
3362 should probably also be applied to nisplus, ibase and oracle lookups, but
3363 since I cannot test any of those, I have not disturbed their existing code.
3364
3365 2. A hit in the callout cache for a specific address caused a log line with no
3366 reason for rejecting RCPT. Now it says "Previous (cached) callout
3367 verification failure".
3368
3369 3. There was an off-by-one bug in the queryprogram router. An over-long
3370 return line was truncated at 256 instead of 255 characters, thereby
3371 overflowing its buffer with the terminating zero. As well as fixing this, I
3372 have increased the buffer size to 1024 (and made a note to document this).
3373
3374 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3375 when Exim is waiting for an SMTP response from a remote server, Exim
3376 restarts its select() call on the socket, thereby resetting its timeout.
3377 This is not a problem when such interrupts are rare. Somebody set up a cron
3378 job to run exiwhat every 2 minutes, which is less than the normal select()
3379 timeout (5 or 10 minutes). This meant that the select() timeout never
3380 kicked in because it was always reset. I have fixed this by comparing the
3381 time when an interrupt arrives with the time at the start of the first call
3382 to select(). If more time than the timeout has elapsed, the interrupt is
3383 treated as a timeout.
3384
3385 5. Some internal re-factoring in preparation for the addition of Sieve
3386 extensions (by MH). In particular, the "personal" test is moved to a
3387 separate function, and given an option for scanning Cc: and Bcc: (which is
3388 not set for Exim filters).
3389
3390 6. When Exim created an email address using the login of the caller as the
3391 local part (e.g. when creating a From: or Sender: header line), it was not
3392 quoting the local part when it contained special characters such as @.
3393
3394 7. Installed new OpenBSD configuration files.
3395
3396 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3397 try to make them clearer.
3398
3399 9. Callout options, other than the timeout value, were being ignored when
3400 verifying sender addresses in header lines. For example, when using
3401
3402 verify = header_sender/callout=no_cache
3403
3404 the cache was (incorrectly) being used.
3405
340610. Added a missing instance of ${EXE} to the exim_install script; this affects
3407 only the Cygwin environment.
3408
340911. When return_path_on_delivery was set as a log selector, if different remote
3410 addresses in the same message used different return paths and parallel
3411 remote delivery occurred, the wrong values would sometimes be logged.
3412 (Whenever a remote delivery process finished, the return path value from
3413 the most recently started remote delivery process was logged.)
3414
341512. RFC 3848 specifies standard names for the "with" phrase in Received: header
3416 lines when AUTH and/or TLS are in use. This is the "received protocol"
3417 field. Exim used to use "asmtp" for authenticated SMTP, without any
3418 indication (in the protocol name) for TLS use. Now it follows the RFC and
3419 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3420 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3421 names appear in log lines as well as in Received: header lines.
3422
342313. Installed MH's patches for Sieve to add the "copy" and "vacation"
3424 extensions, and comparison tests, and to fix some bugs.
3425
342614. Changes to the "personal" filter test:
3427
3428 (1) The test was buggy in that it was just doing the equivalent of
3429 "contains" tests on header lines. For example, if a user's address was
3430 anne@some.where, the "personal" test would incorrectly be true for
3431
3432 To: susanne@some.where
3433
3434 This test is now done by extracting each address from the header in turn,
3435 and checking the entire address. Other tests that are part of "personal"
3436 are now done using regular expressions (for example, to check local parts
3437 of addresses in From: header lines).
3438
3439 (2) The list of non-personal local parts in From: addresses has been
3440 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3441 taken from the Sieve specification recommendations.
3442