Check return values of setgid/setuid.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
5dc43717 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.632 2010/06/12 15:21:25 jetmore Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
8c07b69f
TF
6Exim version 4.74
7-----------------
8
9TF/01 Failure to get a lock on a hints database can have serious
10 consequences so log it to the panic log.
11
c0ea85ab
TF
12TF/02 Log LMTP confirmation messages in the same way as SMTP,
13 controlled using the smtp_confirmation log selector.
14
0761d44e
TF
15TF/03 Include the error message when we fail to unlink a spool file.
16
0a349494
PP
17DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
18 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
19 for maintaining out-of-tree patches for some time.
20
21PP/01 Bugzilla 139: Documentation and portability issues.
22 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
23 Handle per-OS dynamic-module compilation flags.
24
fea24b2e
PP
25PP/02 Let /dev/null have normal permissions.
26 The 4.73 fixes were a little too stringent and complained about the
27 permissions on /dev/null. Exempt it from some checks.
28 Reported by Andreas M. Kirchwitz.
29
6545de78
PP
30PP/03 Report version information for many libraries, including
31 Exim version information for dynamically loaded libraries. Created
32 version.h, now support a version extension string for distributors
33 who patch heavily. Dynamic module ABI change.
34
1670ef10
PP
35PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
36 privilege escalation vulnerability whereby the Exim run-time user
37 can cause root to append content of the attacker's choosing to
38 arbitrary files.
39
8c07b69f 40
97fd1e48 41Exim version 4.73
ed7f7860 42-----------------
97fd1e48
PP
43
44PP/01 Date: & Message-Id: revert to normally being appended to a message,
45 only prepend for the Resent-* case. Fixes regression introduced in
46 Exim 4.70 by NM/22 for Bugzilla 607.
47
6901c596
PP
48PP/02 Include check_rfc2047_length in configure.default because we're seeing
49 increasing numbers of administrators be bitten by this.
50
a8c8d6b5
JJ
51JJ/01 Added DISABLE_DKIM and comment to src/EDITME
52
77bb000f
PP
53PP/03 Bugzilla 994: added openssl_options main configuration option.
54
a29e5231
PP
55PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
56
ec5a0394 57PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 58
55c75993
PP
59PP/06 Adjust NTLM authentication to handle SASL Initial Response.
60
453a6645 61PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
62 without a peer certificate, leading to a segfault because of an
63 assumption that peers always have certificates. Be a little more
453a6645
PP
64 paranoid. Problem reported by Martin Tscholak.
65
8544e77a
PP
66PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
67 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
68 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
69 CL also introduces -bmalware, various -d+acl logging additions and
70 more caution in buffer sizes.
8544e77a 71
83e029d5
PP
72PP/09 Implemented reverse_ip expansion operator.
73
ed7f7860
PP
74PP/10 Bugzilla 937: provide a "debug" ACL control.
75
7d9f747b
PP
76PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
77
4b2241d2
PP
78PP/12 Bugzilla 973: Implement --version.
79
10385c15
PP
80PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
81
dbc4b90d
PP
82PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
83
532be449
PP
84PP/15 Bugzilla 816: support multiple condition rules on Routers.
85
6a8de854 86PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
87 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
88 ignore trailing whitespace.
6a8de854 89
5dc43717
JJ
90JJ/02 prevent non-panic DKIM error from being sent to paniclog
91
92JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
93 "exim" to be used
55c75993 94
3346ab01
PP
95PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
96 Notification from Dr Andrew Aitchison.
97
491fab4c
PP
98PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
99 ExtendedDetectionInfo response format.
100 Notification from John Horne.
101
13eb9497
PP
102PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
103 compatible.
104
105PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
106 XSL and documented dependency on system catalogs, with examples of how
107 it normally works.
108
7f36d675
DW
109DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
110 access.
111
c1d94452
DW
112DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
113 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
114 configuration file which is writeable by the Exim user or group.
115
e2f5dc15
DW
116DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
117 of configuration files to cover files specified with the -C option if
118 they are going to be used with root privileges, not just the default
119 configuration file.
120
cd25e41d
DW
121DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
122 option (effectively making it always true).
123
261dc43e
DW
124DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
125 files to be used while preserving root privileges.
126
fa32850b
DW
127DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
128 that rogue child processes cannot use them.
129
79d4bc3d
PP
130PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
131 run-time user, instead of root.
132
2cfd3221
PP
133PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
134 Exim run-time user without dropping privileges.
135
fb08281f
DW
136DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
137 result string, instead of calling string_vformat() twice with the same
138 arguments.
3346ab01 139
74935b98
DW
140DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
141 for other users. Others should always drop root privileges if they use
142 -C on the command line, even for a whitelisted configure file.
143
90b6341f
DW
144DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
145
57730b52
ML
146NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
147
66581d1e 148
465e92cf
JJ
149Exim version 4.72
150-----------------
151
453a6645
PP
152JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
153 $data_path, and $header_path variables; fixed documentation bugs and
154 typos
465e92cf 155
453a6645
PP
156JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
157 exipick to access non-standard spools, including the "frozen" queue
158 (Finput)
edae0343 159
9bd3e22c
NM
160NM/01 Bugzilla 965: Support mysql stored procedures.
161 Patch from Alain Williams
162
bb576ff7
NM
163NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
164
5a1a5845
NM
165NM/03 Bugzilla 955: Documentation fix for max_rcpts.
166 Patch from Andreas Metzler
167
981a9fad
NM
168NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
169 Patch from Kirill Miazine
170
7fc497ee
NM
171NM/05 Bugzilla 671: Added umask to procmail example.
172
1a41defa
JJ
173JJ/03 installed exipick 20100323.0, fixing doc bug
174
a466095c 175NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 176 directory. Notification and patch from Dan Rosenberg.
a466095c 177
94a6bd0b
NM
178TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
179
180TK/02 Improve log output when DKIM signing operation fails.
181
182MH/01 Treat the transport option dkim_domain as a colon separated
183 list, not as a single string, and sign the message with each element,
184 omitting multiple occurences of the same signer.
185
c1b141a8
NM
186NM/07 Null terminate DKIM strings, Null initialise DKIM variable
187 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 188
b26eacf1 189NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
190 Patch by Simon Arlott
191
179c5980 192PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 193 MBX locking. Notification from Dan Rosenberg.
179c5980 194
9bd3e22c 195
7c6d71af
NM
196Exim version 4.71
197-----------------
198
7d9f747b 199TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 200
f013fb92
NM
201NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
202
0eb8eedd
NM
203NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
204
663ee6d9
NM
205NM/03 Bugzilla 847: Enable DNSDB lookup by default.
206
177ebd9b
NM
207NM/04 Bugzilla 915: Flag broken perl installation during build.
208
7c6d71af 209
210f147e
NM
210Exim version 4.70
211-----------------
212
cdd3bb85 213TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 214 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
215
216TK/02 Write list of recipients to X-Envelope-Sender header when building
217 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 218 Hirsch).
cdd3bb85
TK
219
220TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
221 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 222 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
223
224TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
225 by Mark Daniel Reidel <mr@df.eu>.
226
210f147e
NM
227NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
228 When building exim an external PCRE library is now needed -
229 PCRE is a system library on the majority of modern systems.
230 See entry on PCRE_LIBS in EDITME file.
231
deafd5b3
NM
232NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
233 conversation. Added nologin parameter to request.
7d9f747b 234 Patch contributed by Kirill Miazine.
deafd5b3 235
089793a4
TF
236TF/01 Do not log submission mode rewrites if they do not change the address.
237
5f16ca82
TF
238TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
239
dae9d94e 240NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 241 log files in place. Contributed by Roberto Lima.
dae9d94e 242
7d9f747b 243NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 244
06864c44
TF
245TF/03 Bugzilla 615: When checking the local_parts router precondition
246 after a local_part_suffix or local_part_prefix option, Exim now
247 does not use the address's named list lookup cache, since this
248 contains cached lookups for the whole local part.
249
65a7d8c3 250NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 251 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 252
23510047 253TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 254
7d9f747b 255NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 256
7d8eec3a 257NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 258 Patch provided by Jan Srzednicki.
6c588e74 259
89dec7b6
TF
260TF/05 Leading white space used to be stripped from $spam_report which
261 wrecked the formatting. Now it is preserved.
5f28a6e8 262
a99de90c
TF
263TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
264 that they are available at delivery time.
265
e2803e40
TF
266TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
267
7199e1ee
TF
268TF/08 TLS error reporting now respects the incoming_interface and
269 incoming_port log selectors.
270
e276e04b
TF
271TF/09 Produce a more useful error message if an SMTP transport's hosts
272 setting expands to an empty string.
273
ce552449 274NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 275 Patch provided by Phil Pennock.
ce552449 276
e765a0f1 277NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 278 Patch provided by Richard Godbee.
e765a0f1 279
4f054c63 280NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 281 acl_smtp_notquit, added index entry.
4f054c63 282
7d9f747b
PP
283NM/09 Bugzilla 787: Potential buffer overflow in string_format.
284 Patch provided by Eugene Bujak.
24c929a2 285
7d9f747b
PP
286NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
287 accept(). Patch provided by Maxim Dounin.
cf73943b 288
b52bc06e 289NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 290 Patch provided by Phil Pennock.
b52bc06e 291
447de4b0
NM
292NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
293
4c69d561 294NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 295 Patch provided by Brad "anomie" Jorsch.
4c69d561 296
d5c39246 297NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 298 Patch provided by Dean Brooks.
9b989985 299
0b23848a
TK
300TK/05 Add native DKIM support (does not depend on external libraries).
301
8f3414a1 302NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 303 Patch provided by Graeme Fowler.
e2aacdfd 304
fb6f955d
NM
305NM/16 Bugzilla 851: Documentation example syntax fix.
306
307NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 308
7d9f747b
PP
309NM/18 Bugzilla 894: Fix issue with very long lines including comments in
310 lsearch.
dbb0bf41 311
7d9f747b
PP
312NM/19 Bugzilla 745: TLS version reporting.
313 Patch provided by Phil Pennock.
f3766eb5 314
7d9f747b
PP
315NM/20 Bugzilla 167: bool: condition support.
316 Patch provided by Phil Pennock.
36f12725 317
7d9f747b
PP
318NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
319 clients. Patch provided by Phil Pennock.
e6060e2c 320
7d9f747b
PP
321NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
322 Patch provided by Brad "anomie" Jorsch.
5eb690a1 323
7d9f747b
PP
324NM/23 Bugzilla 687: Fix misparses in eximstats.
325 Patch provided by Heiko Schlittermann.
d5c13d66 326
7d9f747b
PP
327NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
328 Patch provided by Heiko Schlittermann.
b2335c0b 329
7d9f747b 330NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 331 plus update to original patch.
f4cd9433 332
7d9f747b 333NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 334
7d9f747b
PP
335NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
336 Patch provided by David Brownlee.
8dc71ab3 337
7d9f747b 338NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 339
7d9f747b 340NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 341
7d9f747b 342NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 343
7d9f747b 344NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 345
17792b53 346NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 347 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 348
7d9f747b
PP
349NM/33 Bugzilla 898: Transport filter timeout fix.
350 Patch by Todd Rinaldo.
52383f8f 351
7d9f747b
PP
352NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
353 Patch by Serge Demonchaux.
5ca6d115 354
7d9f747b
PP
355NM/35 Bugzilla 39: Base64 decode bug fixes.
356 Patch by Jakob Hirsch.
baee9eee 357
7d9f747b 358NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 359
7d9f747b 360NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 361
7d9f747b 362NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 363
7d9f747b 364NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 365
deafd5b3 366
47db1125
NM
367Exim version 4.69
368-----------------
369
4b3504d0
TK
370TK/01 Add preliminary DKIM support. Currently requires a forked version of
371 ALT-N's libdkim that I have put here:
372 http://duncanthrax.net/exim-experimental/
373
374 Note to Michael Haardt: I had to rename some vars in sieve.c. They
375 were called 'true' and it seems that C99 defines that as a reserved
376 keyword to be used with 'bool' variable types. That means you could
377 not include C99-style headers which use bools without triggering
378 build errors in sieve.c.
379
81ea09ca
NM
380NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
381 as mailq or other aliases. Changed the --help handling significantly
382 to do whats expected. exim_usage() emits usage/help information.
383
f13cddcb
SC
384SC/01 Added the -bylocaldomain option to eximstats.
385
7d9f747b 386NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 387
7d9f747b 388NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 389
7d9f747b 390NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
391
392
eb4c0de6
PH
393Exim version 4.68
394-----------------
395
396PH/01 Another patch from the Sieve maintainer.
397
6a3bceb1
PH
398PH/02 When an IPv6 address is converted to a string for single-key lookup
399 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
400 dots are used instead of colons so that keys in lsearch files need not
401 contain colons. This was done some time before quoting was made available
402 in lsearch files. However, iplsearch files do require colons in IPv6 keys
403 (notated using the quote facility) so as to distinguish them from IPv4
404 keys. This meant that lookups for IP addresses in host lists did not work
405 for iplsearch lookups.
406
407 This has been fixed by arranging for IPv6 addresses to be expressed with
408 colons if the lookup type is iplsearch. This is not incompatible, because
409 previously such lookups could never work.
410
411 The situation is now rather anomolous, since one *can* have colons in
412 ordinary lsearch keys. However, making the change in all cases is
413 incompatible and would probably break a number of configurations.
414
2e30fa9d
TK
415TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
416 version.
417
0806a9c5
MH
418MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
419 conversion specification without a maximum field width, thereby enabling
420 a rogue spamd server to cause a buffer overflow. While nobody in their
421 right mind would setup Exim to query an untrusted spamd server, an
422 attacker that gains access to a server running spamd could potentially
423 exploit this vulnerability to run arbitrary code as the Exim user.
424
ae276964
TK
425TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
426 $primary_hostname instead of what libspf2 thinks the hosts name is.
427
0f2cbd1b
MH
428MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
429 a directory entry by the name of the lookup key. Previously, if a
430 symlink pointed to a non-existing file or a file in a directory that
431 Exim lacked permissions to read, a lookup for a key matching that
432 symlink would fail. Now it is enough that a matching directory entry
433 exists, symlink or not. (Bugzilla 503.)
434
2b85bce7
PH
435PH/03 The body_linecount and body_zerocount variables are now exported in the
436 local_scan API.
437
93655c46
PH
438PH/04 Added the $dnslist_matched variable.
439
6c512171
PH
440PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
441 This means they are set thereafter only if the connection becomes
442 encrypted.
443
444PH/06 Added the client_condition to authenticators so that some can be skipped
445 by clients under certain conditions.
446
aa6dc513
PH
447PH/07 The error message for a badly-placed control=no_multiline_responses left
448 "_responses" off the end of the name.
449
a96603a0
PH
450PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
451
8f240103
PH
452PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
453 (without spaces) instead of just copying the configuration text.
454
455PH/10 Added the /noupdate option to the ratelimit ACL condition.
456
d677b2f2
PH
457PH/11 Added $max_received_linelength.
458
d52120f2
PH
459PH/12 Added +ignore_defer and +include_defer to host lists.
460
64f2600a
PH
461PH/13 Installed PCRE version 7.2. This needed some changes because of the new
462 way in which PCRE > 7.0 is built.
463
8669f003
PH
464PH/14 Implemented queue_only_load_latch.
465
a4dc33a8
PH
466PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
467 MAIL command. The effect was to mangle the value on 64-bit systems.
468
d6a60c0f
PH
469PH/16 Another patch from the Sieve maintainer.
470
8f128379
PH
471PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
472
8932dffe
PH
473PH/18 If a system quota error occurred while trying to create the file for
474 a maildir delivery, the message "Mailbox is full" was not appended to the
475 bounce if the delivery eventually timed out. Change 4.67/27 below applied
476 only to a quota excession during the actual writing of the file.
d6a60c0f 477
ddea74fa 478PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
479 characters?) which causes problems in log lines. The DN values are now
480 passed through string_printing() before being added to log lines.
481
ddea74fa 482PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
483 and InterBase are left for another time.)
484
ddea74fa
PH
485PH/21 Added message_body_newlines option.
486
ce9f225c
PH
487PH/22 Guard against possible overflow in moan_check_errorcopy().
488
19897d52
PH
489PH/23 POSIX allows open() to be a macro; guard against that.
490
bc64a74d
PH
491PH/24 If the recipient of an error message contained an @ in the local part
492 (suitably quoted, of course), incorrect values were put in $domain and
493 $local_part during the evaluation of errors_copy.
494
eb4c0de6 495
b4ed4da0
PH
496Exim version 4.67
497-----------------
498
22ad45c9
MH
499MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
500 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
501 Jan Srzednicki.
502
b4ed4da0
PH
503PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
504 issue a MAIL command.
505
431b7361
PH
506PH/02 In an ACL statement such as
507
508 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
509
510 if a client was not listed at all, or was listed with a value other than
511 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
512 the condition was not true (as it should be), so access was not denied.
513 The bug was that the ! inversion was incorrectly passed on to the second
514 item. This has been fixed.
515
516PH/03 Added additional dnslists conditions == and =& which are different from
517 = and & when the dns lookup returns more than one IP address.
518
83da1223
PH
519PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
520 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
521
54fc8428
PH
522PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
523 FSYNC, which compiles an option called disable_fsync that allows for
524 bypassing fsync(). The documentation is heavily laced with warnings.
525
34c5e8dd
SC
526SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
527
bbe15da8
PH
528PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
529 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
530 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
531 including adding "make clean"; (3) Added -fPIC when compiling the test
532 dynamically loaded module, to get rid of a warning.
533
0e8a9471
MH
534MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
535 message fails, move_frozen_messages = true and ignore_bounce_errors_after
536 = 0s. The bug is otherwise harmless.
537
f0872424
PH
538PH/07 There was a bug in the dovecot authenticator such that the value of
539 $auth1 could be overwritten, and so not correctly preserved, after a
540 successful authentication. This usually meant that the value preserved by
541 the server_setid option was incorrect.
542
b01dd148
PH
543PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
544
6bf342e1
PH
545PH/09 Installed PCRE release 7.0.
546
273f34d0
PH
547PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
548 run for batched SMTP input. It is now run at the start of every message
549 in the batch. While fixing this I discovered that the process information
550 (output by running exiwhat) was not always getting set for -bs and -bS
551 input. This is fixed, and it now also says "batched" for BSMTP.
552
cf8b11a5
PH
553PH/11 Added control=no_pipelining.
554
41c7c167
PH
555PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
556 patch, slightly modified), and move the expansion of helo_data till after
557 the connection is made in the smtp transport (so it can use these
558 values).
559
9c57cbc0
PH
560PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
561
f3f065bb
PH
562PH/14 Added log_selector = +pid.
563
047bdd8c
PH
564PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
565
0ce9abe6
PH
566PH/16 Add ${if forany and ${if forall.
567
0e22dfd1
PH
568PH/17 Added dsn_from option to vary the From: line in DSNs.
569
4c590bd1
PH
570PH/18 Flush SMTP output before performing a callout, unless control =
571 no_callout_flush is set.
572
09945f1e
PH
573PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
574 was true (the default) a successful delivery failed to delete the retry
575 item, thus causing premature timeout of the address. The bug is now
576 fixed.
577
c51b8e75
PH
578PH/20 Added hosts_avoid_pipelining to the smtp transport.
579
e28326d8
PH
580PH/21 Long custom messages for fakedefer and fakereject are now split up
581 into multiline reponses in the same way that messages for "deny" and
582 other ACL rejections are.
583
75b1493f
PH
584PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
585 with slight modification.
586
7c5214ec
PH
587PH/23 Applied sieve patches from the maintainer "tracking the latest notify
588 draft, changing the syntax and factoring some duplicate code".
589
4311097e
PH
590PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
591 for deliveries of the second and subsequent messages over the same SMTP
592 connection.
593
29f89cad
PH
594PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
595 ${reduce, with only minor "tidies".
596
5e687460
SC
597SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
598
c3611384
PH
599PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
600 expansion side effects.
601
5a11a7b4
PH
602PH/27 When a message times out after an over-quota error from an Exim-imposed
603 quota, the bounce message says "mailbox is full". This message was not
604 being given when it was a system quota that was exceeded. It now should
605 be the same.
606
0e20aff9
MH
607MH/03 Made $recipients available in local_scan(). local_scan() already has
608 better access to the recipient list through recipients_list[], but
609 $recipients can be useful in postmaster-provided expansion strings.
610
ca86f471
PH
611PH/28 The $smtp_command and $smtp_command_argument variables were not correct
612 in the case of a MAIL command with additional options following the
613 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
614 were accidentally chopped off.
615
a14e5636
PH
616PH/29 SMTP synchronization checks are implemented when a command is read -
617 there is a check that no more input is waiting when there shouldn't be
618 any. However, for some commands, a delay in an ACL can mean that it is
619 some time before the response is written. In this time, more input might
620 arrive, invalidly. So now there are extra checks after an ACL has run for
621 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
622 pipelining has not been advertised.
623
ec95d1a6
PH
624PH/30 MH's patch to allow iscntrl() characters to be list separators.
625
42855d71
PH
626PH/31 Unlike :fail:, a custom message specified with :defer: was not being
627 returned in the SMTP response when smtp_return_error_details was false.
628 This has been fixed.
629
57c2c631
PH
630PH/32 Change the Dovecot authenticator to use read() and write() on the socket
631 instead of the C I/O that was originally supplied, because problems were
632 reported on Solaris.
633
58c01c94
PH
634PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
635 Exim which did not show up earlier: it was assuming that a call to
636 SSL_CTX_set_info_callback() might give an error value. In fact, there is
637 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
638 was a macro that became an assignment, so it seemed to work. This has
639 changed to a proper function call with a void return, hence the compile
640 error. Exim's code has been fixed.
641
dee5a20a
PH
642PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
643 cpus.
644
d2ee6114
PH
645PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
646
b2d5182b
PH
647PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
648
79749a79
PH
649PH/37 If a message is not accepted after it has had an id assigned (e.g.
650 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
651 "Completed" line in the log. When some messages of this type were
652 selected by exigrep, they were listed as "not completed". Others were
653 picked up by some special patterns. I have improved the selection
654 criteria to be more general.
79749a79 655
c456d9bb
PH
656PH/38 The host_find_failed option in the manualroute router can now be set
657 to "ignore", to completely ignore a host whose IP address cannot be
658 found. If all hosts are ignored, the behaviour is controlled by the new
659 host_all_ignored option.
660
cd9868ec
PH
661PH/39 In a list of hosts for manualroute, if one item (either because of multi-
662 homing or because of multiple MX records with /mx) generated more than
663 one IP address, and the following item turned out to be the local host,
664 all the secondary addresses of the first item were incorrectly removed
665 from the list, along with the local host and any following hosts (which
666 is what is supposed to happen).
667
ebeaf996
PH
668PH/40 When Exim receives a message, it writes the login name, uid, and gid of
669 whoever called Exim into the -H file. In the case of the daemon it was
670 behaving confusingly. When first started, it used values for whoever
671 started the daemon, but after a SIGHUP it used the Exim user (because it
672 calls itself on a restart). I have changed the code so that it now always
673 uses the Exim user.
674
2679d413
PH
675PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
676 message are rejected with the same error (e.g. no authentication or bad
677 sender address), and a DATA command is nevertheless sent (as can happen
678 with PIPELINING or a stupid MUA), the error message that was given to the
679 RCPT commands is included in the rejection of the DATA command. This is
680 intended to be helpful for MUAs that show only the final error to their
681 users.
682
84024b72
PH
683PH/42 Another patch from the Sieve maintainer.
684
8005d38e
SC
685SC/02 Eximstats - Differentiate between permanent and temporary rejects.
686 Eximstats - Fixed some broken HTML links and added missing column headers
687 (Jez Hancock).
688 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
689 columns for Rejects, Temp Rejects, Ham, and Spam rows.
690
3298c6c6
SC
691SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
692
a43a27c5
PH
693PH/43 Yet another patch from the Sieve maintainer.
694
58eb016e 695PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
696 the response to the final '.' that terminates a message, but only in the
697 case where the client has not sent further data following the '.'
698 (unfortunately, this is allowed). However, in many cases there won't be
699 any further data because there won't be any more messages to send. A call
700 to select() can be used: if it shows that the input is "ready", there is
701 either input waiting, or the socket has been closed. An attempt to read
702 the next input character can distinguish the two cases. Previously, Exim
58eb016e 703 would have sent an OK response which the client would never have see.
563b63fa
PH
704 This could lead to message repetition. This fix should cure that, at
705 least in a lot of common cases.
58eb016e 706
b43a74ea
PH
707PH/45 Do not advertise STARTTLS in response to HELP unless it would be
708 advertised in response to EHLO.
709
b4ed4da0 710
5dd1517f
PH
711Exim version 4.66
712-----------------
713
714PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
715 fixed by 4.65/MH/01 (is this a record?) are fixed:
716
717 (i) An empty string was always treated as zero by the numeric comparison
718 operators. This behaviour has been restored.
719
720 (ii) It is documented that the numeric comparison operators always treat
721 their arguments as decimal numbers. This was broken in that numbers
722 starting with 0 were being interpreted as octal.
723
724 While fixing these problems I realized that there was another issue that
725 hadn't been noticed. Values of message_size_limit (both the global option
726 and the transport option) were treated as octal if they started with 0.
727 The documentation was vague. These values are now always treated as
728 decimal, and I will make that clear in the documentation.
729
730
93cfa765
TK
731Exim version 4.65
732-----------------
733
734TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
735 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
736 versions. (#438)
737
d6066548
MH
738MH/01 Don't check that the operands of numeric comparison operators are
739 integers when their expansion is in "skipping" mode (fixes bug
740 introduced by 4.64-PH/07).
741
4362ff0d
PH
742PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
743 child addresses, Exim now panics and dies. Previously, because the count
744 is held in a short int, deliveries were likely to be lost. As such a
745 large number of recipients for a single message is ridiculous
746 (performance will be very, very poor), I have chosen to impose a limit
747 rather than extend the field.
748
93cfa765 749
944e9e9c
TF
750Exim version 4.64
751-----------------
aa41d2de 752
21d74bd9
TK
753TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
754 leftover -K file (the existence of which was triggered by #402).
755 While we were at it, introduced process PID as part of the -K
756 filename. This should rule out race conditions when creating
757 these files.
758
759TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
760 processing considerably. Previous code took too long for large mails,
761 triggering a timeout which in turn triggers #401.
762
763TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
764 in the DK code in transports.c. sendfile() is not really portable,
765 hence the _LINUX specificness.
944e9e9c
TF
766
767TF/01 In the add_headers option to the mail command in an Exim filter,
768 there was a bug that Exim would claim a syntax error in any
769 header after the first one which had an odd number of characters
770 in the field name.
771
2b1c6e3a
PH
772PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
773 callout verification, Exim cached a "reject" for the entire domain. This
774 is correct for most verifications, but it is not correct for a recipient
775 verification with use_sender or use_postmaster set, because in that case
776 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
777 case of MAIL FROM:<> rejection from other early rejections (e.g.
778 rejection of HELO). When verifying a recipient using a non-null MAIL
779 address, the cache is ignored if it shows MAIL FROM:<> rejection.
780 Whatever the result of the callout, the value of the domain cache is
781 left unchanged (for any other kind of callout, getting as far as trying
782 RCPT means that the domain itself is ok).
783
1f872c80
PH
784PH/02 Tidied a number of unused variable and signed/unsigned warnings that
785 gcc 4.1.1 threw up.
786
787PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
788 manifest itself as EPIPE rather than ECONNECT. When tidying away a
789 session, the daemon ignores ECONNECT errors and logs others; it now
790 ignores EPIPE as well.
791
d203e649
PH
792PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
793 (quoted-printable decoding).
794
cc2ed8f7 795PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 796 later the small subsequent patch to fix an introduced bug.
f951fd57 797
ddfcd446
PH
798PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
799
d45b1de8
PH
800PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
801
802PH/08 An error is now given if message_size_limit is specified negative.
803
38a0a95f 804PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 805 to be given (somewhat) arbitrary names.
38a0a95f 806
a2405d83
JJ
807JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
808 in 4.64-PH/09.
809
810JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
811 miscellaneous code fixes
812
6ea85e9a
PH
813PH/10 Added the log_reject_target ACL modifier to specify where to log
814 rejections.
815
26da7e20
PH
816PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
817 hostname. This is wrong, because it relates to the incoming message (and
818 probably the interface on which it is arriving) and not to the outgoing
819 callout (which could be using a different interface). This has been
820 changed to use the value of the helo_data option from the smtp transport
821 instead - this is what is used when a message is actually being sent. If
822 there is no remote transport (possible with a router that sets up host
823 addresses), $smtp_active_hostname is used.
6ea85e9a 824
14aa5a05 825PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 826 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
827 (a) The code assumed that strncpy() returns a negative number on buffer
828 overflow, which isn't the case. Replaced with Exim's string_format()
829 function.
830 (b) There were several signed/unsigned issues. I just did the minimum
831 hacking in of casts. There is scope for a larger refactoring.
832 (c) The code used strcasecmp() which is not a standard C function.
833 Replaced with Exim's strcmpic() function.
834 (d) The code set only $1; it now sets $auth1 as well.
835 (e) A simple test gave the error "authentication client didn't specify
836 service in request". It would seem that Dovecot has changed its
837 interface. Fortunately there's a specification; I followed it and
838 changed what the client sends and it appears to be working now.
839
ff75a1f7
PH
840PH/13 Added $message_headers_raw to provide the headers without RFC 2047
841 decoding.
842
e6f6568e
PH
843PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
844 address A is aliased to B and C, where B exists and C does not. Without
845 -v the output is "A verified" because verification stops after a
846 successful redirection if more than one address is generated. However,
847 with -v the child addresses are also verified. Exim was outputting "A
848 failed to verify" and then showing the successful verification for C,
849 with its parentage. It now outputs "B failed to verify", showing B's
850 parentage before showing the successful verification of C.
851
d6f6e0dc
PH
852PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
853 look up a TXT record in a specific list after matching in a combined
854 list.
855
322050c2
PH
856PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
857 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
858 they consult the DNS. I had assumed they would set it the way they
859 wanted; and indeed my experiments on Linux seem to show that in some
860 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
861 To be on the safe side, however, I have now made the interface to
862 host_find_byname() similar to host_find_bydns(), with an argument
863 containing the DNS resolver options. The host_find_byname() function now
864 sets these options at its start, just as host_find_bydns() does. The smtp
865 transport options dns_qualify_single and dns_search_parents are passed to
866 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
867 of host_find_byname() use the default settings of RES_DEFNAMES
868 (qualify_single) but not RES_DNSRCH (search_parents).
869
08955dd3
PH
870PH/17 Applied (a modified version of) Nico Erfurth's patch to make
871 spool_read_header() do less string testing, by means of a preliminary
872 switch on the second character of optional "-foo" lines. (This is
873 overdue, caused by the large number of possibilities that now exist.
874 Originally there were few.) While I was there, I also converted the
875 str(n)cmp tests so they don't re-test the leading "-" and the first
876 character, in the hope this might squeeze out yet more improvement.
877
1eccaa59
PH
878PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
879 flag allowing group syntax was set by the header_syntax check but not
880 turned off, possible causing trouble later; (2) The flag was not being
881 set at all for the header_verify test, causing "group"-style headers to
882 be rejected. I have now set it in this case, and also caused header_
883 verify to ignore an empty address taken from a group. While doing this, I
884 came across some other cases where the code for allowing group syntax
885 while scanning a header line wasn't quite right (mostly, not resetting
886 the flag correctly in the right place). These bugs could have caused
887 trouble for malformed header lines. I hope it is now all correct.
888
602e59e5
PH
889PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
890 with the "reply" argument non-NULL. The code, however (which originally
891 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
892 but it didn't always do it. This confused somebody who was copying the
893 code for some other use. I have removed all the tests.
894
411ef850
PH
895PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
896 feature that was used to support insecure browsers during the U.S. crypto
897 embargo. It requires special client support, and Exim is probably the
898 only MTA that supported it -- and would never use it because real RSA is
899 always available. This code has been removed, because it had the bad
900 effect of slowing Exim down by computing (never used) parameters for the
901 RSA_EXPORT functionality.
902
7befa435
PH
903PH/21 On the advice of Timo Sirainen, added a check to the dovecot
904 authenticator to fail if there's a tab character in the incoming data
905 (there should never be unless someone is messing about, as it's supposed
906 to be base64-encoded). Also added, on Timo's advice, the "secured" option
907 if the connection is using TLS or if the remote IP is the same as the
908 local IP, and the "valid-client-cert option" if a client certificate has
909 been verified.
910
48da4259 911PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
912 authenticators. This can be used for authorization after authentication
913 succeeds. (In the case of plaintext, it servers for both authentication
914 and authorization.)
915
48da4259
PH
916PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
917 if any retry times were supplied.
918
d1d5595c
PH
919PH/24 Exim crashed if verify=helo was activated during an incoming -bs
920 connection, where there is no client IP address to check. In this
921 situation, the verify now always succeeds.
922
0ef732d9
PH
923PH/25 Applied John Jetmore's -Mset patch.
924
328895cc
PH
925PH/26 Added -bem to be like -Mset, but loading a message from a file.
926
fd700877
PH
927PH/27 In a string expansion for a processed (not raw) header when multiple
928 headers of the same name were present, leading whitespace was being
929 removed from all of them, but trailing whitespace was being removed only
930 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
931 before concatenation. Completely empty headers in a concatenation (as
932 before) are ignored.
fd700877 933
8dce1a6f
PH
934PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
935 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
936
17af4a17
PH
937PH/29 [Removed. This was a change that I later backed out, and forgot to
938 correct the ChangeLog entry (that I had efficiently created) before
939 committing the later change.]
f6c332bd
PH
940
941PH/30 Exim was sometimes attempting to deliver messages that had suffered
942 address errors (4xx response to RCPT) over the same connection as other
943 messages routed to the same hosts. Such deliveries are always "forced",
944 so retry times are not inspected. This resulted in far too many retries
945 for the affected addresses. The effect occurred only when there were more
946 hosts than the hosts_max_try setting in the smtp transport when it had
947 the 4xx errors. Those hosts that it had tried were not added to the list
948 of hosts for which the message was waiting, so if all were tried, there
949 was no problem. Two fixes have been applied:
950
951 (i) If there are any address or message errors in an SMTP delivery, none
952 of the hosts (tried or untried) are now added to the list of hosts
953 for which the message is waiting, so the message should not be a
954 candidate for sending over the same connection that was used for a
955 successful delivery of some other message. This seems entirely
956 reasonable: after all the message is NOT "waiting for some host".
957 This is so "obvious" that I'm not sure why it wasn't done
958 previously. Hope I haven't missed anything, but it can't do any
959 harm, as the worst effect is to miss an optimization.
960
961 (ii) If, despite (i), such a delivery is accidentally attempted, the
962 routing retry time is respected, so at least it doesn't keep
963 hammering the server.
964
c1114884
PH
965PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
966 in ${readsocket because some servers need this prod.
967
7a0743eb
PH
968PH/32 Added some extra debug output when updating a wait-xxx database.
969
0d85fa3f
PH
970PH/33 The hint "could be header name not terminated by colon", which has been
971 given for certain expansion errors for a long time, was not being given
972 for the ${if def:h_colon_omitted{... case.
973
1bf43b78
PH
974PH/34 The spec says: "With one important exception, whenever a domain list is
975 being scanned, $domain contains the subject domain." There was at least
976 one case where this was not true.
977
520de300
PH
978PH/35 The error "getsockname() failed: connection reset by peer" was being
979 written to the panic log as well as the main log, but it isn't really
980 panic-worthy as it just means the connection died rather early on. I have
981 removed the panic log writing for the ECONNRESET error when getsockname()
982 fails.
983
48c7f9e2
PH
984PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
985 runs only) independently of the message's sender address. This meant
986 that, if the 4xx error was in fact related to the sender, a different
987 message to the same recipient with a different sender could confuse
988 things. In particualar, this can happen when sending to a greylisting
989 server, but other circumstances could also provoke similar problems.
990 I have changed the default so that the retry time for these errors is now
991 based a combination of the sender and recipient addresses. This change
992 can be overridden by setting address_retry_include_sender=false in the
993 smtp transport.
994
99ea1c86
PH
995PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
996 remote server are returned as part of bounce messages. This was not
997 happening for LMTP over a pipe (the lmtp transport), but now it is the
998 same for both kinds of LMTP.
999
a2042e78
PH
1000PH/38 Despite being documented as not happening, Exim was rewriting addresses
1001 in header lines that were in fact CNAMEs. This is no longer the case.
1002
4fbcfc2e
PH
1003PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1004 and queue runs started by the daemon processed all messages. This has
1005 been fixed so that -R and -S can now usefully be given with -q<time>.
1006
aa41d2de
PH
1007PH/40 Import PCRE release 6.7 (fixes some bugs).
1008
af561417
PH
1009PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1010
3cc66b45
PH
1011PH/42 Give an error if -q is specified more than once.
1012
194cc0e4
PH
1013PH/43 Renamed the variables $interface_address and $interface_port as
1014 $received_ip_address and $received_port, to make it clear that these
1015 values apply to message reception, and not to the outgoing interface when
1016 a message is delivered. (The old names remain recognized, of course.)
1017
a401ddaa
PH
1018PH/44 There was no timeout on the connect() call when using a Unix domain
1019 socket in the ${readsocket expansion. There now is.
1020
4e88a19f
PH
1021PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1022 be meaningful with "accept".
1023
d7d7b289
SC
1024SC/01 Eximstats V1.43
1025 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1026
1027SC/02 Eximstats V1.44
1028 Use a glob alias rather than an array ref in the generated
1029 parser. This improves both readability and performance.
1030
1031SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1032 Collect SpamAssassin and rejection statistics.
1033 Don't display local sender or destination tables unless
1034 there is data to show.
1035 Added average volumes into the top table text output.
1036
1037SC/04 Eximstats V1.46
1038 Collect data on the number of addresses (recipients)
1039 as well as the number of messages.
1040
1041SC/05 Eximstats V1.47
1042 Added 'Message too big' to the list of mail rejection
1043 reasons (thanks to Marco Gaiarin).
1044
1045SC/06 Eximstats V1.48
1046 Mainlog lines which have GMT offsets and are too short to
1047 have a flag are now skipped.
1048
1049SC/07 Eximstats V1.49 (Alain Williams)
1050 Added the -emptyok flag.
1051
1052SC/08 Eximstats V1.50
1053 Fixes for obtaining the IP address from reject messages.
1054
0ea2a468
JJ
1055JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1056 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1057 whitesspace changes from 4.64-PH/27
1058
1059JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1060 match 4.64-PH/13
1061
1062JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1063 are found, allow negative numbers in numeric criteria)
1064
1065JJ/06 exipick.20061117.2, added new $message_body_missing variable
1066
1067JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1068 to match changes made in 4.64-PH/43
1069
8a10f5a4
PH
1070PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1071
30e18802
PH
1072PH/47 Put in an explicit test for a DNS lookup of an address record where the
1073 "domain" is actually an IP address, and force a failure. This locks out
1074 those revolvers/nameservers that support "A-for-A" lookups, in
1075 contravention of the specifications.
1076
55728a4f
PH
1077PH/48 When a host name was looked up from an IP address, and the subsequent
1078 forward lookup of the name timed out, the host name was left in
1079 $sender_host_name, contrary to the specification.
d7d7b289 1080
d7837193
PH
1081PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1082 restricted to single-key lookups, Exim was not diagnosing an error if
1083 * or *@ was used with a query-style lookup.
1084
87054a31
PH
1085PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1086
ea2c01d2
MH
1087MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1088 long ago, but noone interested enough thought of it. Let's just say that
1089 the "1.1" means that there are some new functions that weren't there at
1090 some point in the past.
1091
e4fa6968
PH
1092PH/51 Error processing for expansion failure of helo_data from an smtp
1093 transport during callout processing was broken.
1094
56f5d9bd
PH
1095PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1096 tested/used via the -bh/-bhc/-bs options.
1097
922e1c28
PH
1098PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1099 bug, fixed in subsequent PCRE releases).
1100
21eb6e72
PH
1101PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1102 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1103
a0540757
PH
1104PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1105
944e9e9c 1106
478be7b0
SC
1107Exim version 4.63
1108-----------------
1109
1110SC/01 Use a glob alias rather than an array ref in eximstats generated
1111 parser. This improves both readability and performance.
1112
1113SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1114 Don't display local sender or destination tables in eximstats unless
1115 there is data to show.
1116 Added average volumes into the eximstats top table text output.
1117
1118SC/03 Collect data on the number of addresses (recipients) as well
1119 as the number of messages in eximstats.
1120
2b965a65
TF
1121TF/01 Correct an error in the documentation for the redirect router. Exim
1122 does (usually) call initgroups() when daemonizing.
478be7b0 1123
45b91596
PH
1124TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1125 with consistent privilege compared to when running as a daemon.
478be7b0 1126
c59f5781
TF
1127TF/03 Note in the spec that $authenticated_id is not set for local
1128 submissions from trusted users.
1129
90fc3069
TF
1130TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1131 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1132
6083aca0
TF
1133TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1134 by adding some example configuration directives to the default
1135 configuration file. A little bit of work is required to uncomment the
1136 directives and define how usernames and passwords are checked, but
1137 there is now a framework to start from.
1138
765b530f
PH
1139PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1140 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1141 without this. I don't know how relevant this is to other LDAP libraries.
1142
4e167a8c
PH
1143PH/02 Add the verb name to the "unknown ACL verb" error.
1144
4608d683
PH
1145PH/03 Magnus Holmgren's patch for filter_prepend_home.
1146
b8dc3e4a
PH
1147PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1148
5418e93b
PH
1149PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1150 directory not expanded when it should be if an expanded home directory
1151 was set for the address (which is overridden by the transport).
1152
b4a9bda2
PH
1153PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1154 libradius.
1155
45b91596
PH
1156PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1157 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1158 because it is too late at that time, and has no effect.
1159
5547e2c5
PH
1160PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1161 security issue with \' (bugzilla #107). I could not use the
1162 PQescapeStringConn() function, because it needs a PGconn value as one of
1163 its arguments.
1164
dbcef0ea
PH
1165PH/08 When testing addresses using -bt, indicate those final addresses that
1166 are duplicates that would not cause an additional delivery. At least one
1167 person was confused, thinking that -bt output corresponded to deliveries.
1168 (Suppressing duplicates isn't a good idea as you lose the information
1169 about possibly different redirections that led to the duplicates.)
1170
25257489
PH
1171PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1172 systems where poll() doesn't work, in particular OS X.
1173
c816d124
PH
1174PH/10 Added more information to debugging output for retry time not reached.
1175
a9ccd69a
PH
1176PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1177 operations in malware.c.
1178
75fa1910
PH
1179PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1180 signatures.
1181
a7d7aa58
PH
1182PH/13 If write_rejectlog was set false when logging was sent to syslog with
1183 syslog_duplication set false, log lines that would normally be written
1184 both the the main log and to the reject log were not written to syslog at
1185 all.
1186
42119b09
PH
1187PH/14 In the default configuration, change the use of "message" in ACL warn
1188 statements to "add_header".
1189
41609df5
PH
1190PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1191 not followed by a command (e.g. "seen endif").
1192
a5bd321b
PH
1193PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1194 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1195 latter.
1196
e85a7ad5 1197PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1198 so that it is now:
1199
e85a7ad5
PH
1200 ${if or { \
1201 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1202 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1203 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1204 }{no}{yes}}
1205
e85a7ad5
PH
1206 The Auto-Submitted: and various List- headers are standardised, whereas I
1207 don't think Precedence: ever was.
5dff5817 1208
d8fe1c03
PH
1209PH/18 Refactored debugging code in route_finduser() to show more information,
1210 in particular, the error code if getpwnam() issues one.
1211
16282d2b
PH
1212PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1213 This is apparently needed in addition to the PH/07 change above to avoid
1214 any possible encoding problems.
1215
35d40a98
PH
1216PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1217 but not after initializing Perl.
1218
034d99ab
PH
1219PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1220 output them only if debugging. By default they are written stderr,
1221 apparently, which is not desirable.
1222
6ec97b1b
PH
1223PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1224 queries.
1225
e22ca4ac
JJ
1226JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1227 --not options
1228
1229JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1230
33d73e3b
PH
1231PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1232 authenticated or an ident call has been made. Suppress the default
1233 values for $authenticated_id and $authenticated_sender (but permit -oMai
1234 and -oMas) when testing with -bh.
1235
9ecb03f3
PH
1236PH/24 Re-jigged the order of the tests in the default configuration so that the
1237 tests for valid domains and recipients precede the DNS black list and CSA
1238 tests, on the grounds that those ones are more expensive.
1239
084efe8d
PH
1240PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1241 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1242 This bug exists in every version of Exim that I still have, right back to
1243 0.12.
1244
366fc9f0
PH
1245PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1246 However, an attempt to turn on case-sensitivity in a regex key by
1247 including (?-i) didn't work because the subject string was already
1248 lowercased, and the effects were non-intuitive. It turns out that a
1249 one-line patch can be used to allow (?-i) to work as expected.
1250
c59f5781 1251
c887c79e
TF
1252Exim version 4.62
1253-----------------
1254
1255TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1256 other effects) broke the use of negated acl sub-conditions.
1257
1cce3af8
PH
1258PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1259 patch).
1260
afb3eaaf
PH
1261PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1262 "Deny" causes Exim to reject the incoming connection with a 554 error.
1263 Unfortunately, if there is a major crisis, such as a disk failure,
1264 tcp-wrappers gives "deny", whereas what one would like would be some
1265 kind of temporary error. A kludge has been added to help with this.
1266 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1267 554 error is used if errno is still zero or contains ENOENT (which occurs
1268 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1269 451 error is used.
1270
e173618b
PH
1271PH/03 Add -lutil to the default FreeBSD LIBS setting.
1272
dd16e114
PH
1273PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1274 errors. Otherwise a message that provokes a temporary error (when other
1275 messages do not) can cause a whole host to time out.
1276
f7fd3850
PH
1277PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1278 addresses were routed directly to files or pipes from a redirect router.
1279 File deliveries just didn't batch; pipe deliveries might have suffered
1280 odd errors.
1281
d87df92c
PH
1282PH/06 A failure to get a lock for a hints database would erroneously always say
1283 "Failed to get write lock", even when it was really a read lock.
1284
7e9f683d
PH
1285PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1286 of 0600. This has been changed to use the value of the lockfile_mode
1287 option (which defaults to 0600).
1288
bfad5236
PH
1289PH/08 Applied small patch from the Sieve maintainer.
1290
01c490df
PH
1291PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1292 folder from quota calculations, a direct delivery into this folder messed
1293 up the contents of the maildirsize file. This was because the regex was
1294 used only to exclude .Trash (or whatever) when the size of the mailbox
1295 was calculated. There was no check that a delivery was happening into an
1296 excluded directory. This bug has been fixed by ignoring all quota
1297 processing for deliveries into excluded directories.
1298
d6629cdc
PH
1299PH/10 Added the maildirfolder_create_regex option to appendfile.
1300
1cce3af8 1301
214e2000
PH
1302Exim version 4.61
1303-----------------
1304
1305PH/01 The code for finding all the local interface addresses on a FreeBSD
1306 system running IPv6 was broken. This may well have applied to all BSD
1307 systems, as well as to others that have similar system calls. The broken
1308 code found IPv4 interfaces correctly, but gave incorrect values for the
1309 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1310 that it would not match correctly against @[] and not recognize the IPv6
1311 addresses as local.
1312
f9daeae0
PH
1313PH/02 The ipliteral router was not recognizing addresses of the form user@
1314 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1315
7e66e54d
PH
1316PH/03 Added disable_ipv6.
1317
c8ea1597
PH
1318PH/04 Changed $reply_address to use the raw form of the headers instead of the
1319 decoded form, because it is most often used to construct To: headers
1320 lines in autoreplies, and the decoded form may well be syntactically
1321 invalid. However, $reply_address has leading white space removed, and all
1322 newlines turned into spaces so that the autoreply transport does not
1323 grumble.
1324
911f6fde
PH
1325PH/05 If group was specified without a user on a router, and no group or user
1326 was specified on a transport, the group from the router was ignored.
1327
47ca6d6c
PH
1328PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1329 for visible compile-time settings that can be used to change these
1330 numbers, for those that want even more. Backwards compatibility with old
1331 spool files has been maintained. However, going back to a previous Exim
1332 release will lost any variables that are in spool files.
1333
ed0e9820
PH
1334PH/07 Two small changes when running in the test harness: increase delay when
1335 passing a TCP/IP connection to a new process, in case the original
1336 process has to generate a bounce, and remove special handling of
1337 127.0.0.2 (sic), which is no longer necessary.
1338
eff37e47
PH
1339PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1340 be the same on different OS.
1341
1921d2ea
PH
1342PH/09 Moved a debug statement in filter processing to avoid a race problem when
1343 testing.
1344
b3f69ca8
JJ
1345JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1346 whether --show-vars was specified or not
1347
1348JJ/02 exipick: Added support for new ACL variable spool format introduced
1349 in 4.61-PH/06
1350
424a1c63
PH
1351PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1352 syntactically invalid From: or Reply-to: line, and a filter used this to
1353 generate an autoreply, and therefore failed to obtain an address for the
1354 autoreply, Exim could try to deliver to a non-existent relative file
1355 name, causing unrelated and misleading errors. What now happens is that
1356 it logs this as a hard delivery error, but does not attempt to create a
1357 bounce message.
1358
7a100415
PH
1359PH/11 The exinext utility has a -C option for testing purposes, but although
1360 the given file was scanned by exinext itself; it wasn't being passed on
1361 when Exim was called.
1362
19b9dc85
PH
1363PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1364 an end-of-file indication when reading a command response.
1365
309bd837
PH
1366PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1367 compiled. In many other places in Exim, IPv6 addresses are always
1368 recognized, so I have changed this. It also means that IPv4 domain
1369 literals of the form [IPV4:n.n.n.n] are now always recognized.
1370
59e82a2a
PH
1371PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1372 used if the router is not running as root, for example, when verifying at
1373 ACL time, or when using -bh. The debugging output from this situation was
1374 non-existent - all you got was a failure to exec. I have made two
1375 changes:
1376
1377 (a) Failures to set uid/gid, the current directory, or a process leader
1378 in a subprocess such as that created by queryprogram now generate
1379 suitable debugging ouput when -d is set.
1380
1381 (b) The queryprogram router detects when it is not running as root,
1382 outputs suitable debugging information if -d is set, and then runs
1383 the subprocess without attempting to change uid/gid.
1384
9edc04ce
PH
1385PH/15 Minor change to Makefile for building test_host (undocumented testing
1386 feature).
1387
1349e1e5
PH
1388PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1389 additional section of a DNS packet that returns MX or SRV records.
1390 Instead, it always explicitly searches for A/AAAA records. This avoids
1391 major problems that occur when a DNS server includes only records of one
1392 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1393 fixed another bug: if SRV records were looked up and the corresponding
1394 address records were *not* found in the additional section, the port
1395 values from the SRV records were lost.
1396
ea49d0e1
PH
1397PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1398 using the correct key (the original address) when searching the retry
1399 rules in order to find which one to use for generating the retry hint.
1400
064a94c9
PH
1401PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1402 adding the default one. Similarly, if it contains a Reply-To: header, the
1403 errors_reply_to option, if set, is not used.
1404
727071f8
PH
1405PH/19 When calculating a retry time, Exim used to measure the "time since
1406 failure" by looking at the "first failed" field in the retry record. Now
1407 it does not use this if it is later than than the arrival time of the
1408 message. Instead it uses the arrival time. This makes for better
1409 behaviour in cases where some deliveries succeed, thus re-setting the
1410 "first failed" field. An example is a quota failure for a huge message
1411 when small messages continue to be delivered. Without this change, the
1412 "time since failure" will always be short, possible causing more frequent
1413 delivery attempts for the huge message than are intended.
dd16e114 1414 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1415
f78eb7c6
PH
1416PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1417 $1, $2, $3) because the numerical variables can be reset during some
1418 expansion items (e.g. "match"), thereby losing the authentication data.
1419
21c28500
PH
1420PH/21 Make -bV show the size of off_t variables so that the test suite can
1421 decide whether to run tests for quotas > 2G.
1422
1423PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1424 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1425 filecount value is greater than 2G or if a quota value is greater than 2G
1426 on a system where the size of off_t is not greater than 4, a panic error
1427 is given.
1428
1688f43b
PH
1429PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1430 never match. The debug and -bh output now contains an explicit error
1431 message indicating a malformed IPv4 address or mask.
1432
1433PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1434 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1435 PH/23 above applies.
1436
9675b384
PH
1437PH/25 Do not write to syslog when running in the test harness. The only
1438 occasion when this arises is a failure to open the main or panic logs
1439 (for which there is an explicit test).
1440
6a3f1455
PH
1441PH/26 Added the /no_tell option to "control=freeze".
1442
dac79d3e
PH
1443PH/27 If a host name lookup failed very early in a connection, for example, if
1444 the IP address matched host_lookup and the reverse lookup yielded a name
1445 that did not have a forward lookup, an error message of the form "no IP
1446 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1447 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1448
5977a0b3
PH
1449PH/28 An enabling patch from MH: add new function child_open_exim2() which
1450 allows the sender and the authenticated sender to be set when
1451 submitting a message from within Exim. Since child_open_exim() is
1452 documented for local_scan(), the new function should be too.
1453
c91535f3
PH
1454PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1455 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1456 results in an empty string is now treated as unset.
1457
0d46a8c8
PH
1458PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1459
278c6e6c
PH
1460PH/31 Added sender_verify_fail logging option.
1461
2cbb4081
PH
1462PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1463 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1464 tidied the source and removed it altogether.
1465
3eef829e
PH
1466PH/33 When a queue run was abandoned because the load average was too high, a
1467 log line was always written; now it is written only if the queue_run log
1468 selector is set. In addition, the log line for abandonment now contains
1469 information about the queue run such as the pid. This is always present
1470 in "start" and "stop" lines but was omitted from the "abandon" line.
1471
1ab95fa6
PH
1472PH/34 Omit spaces between a header name and the colon in the error message that
1473 is given when verify = headers_syntax fails (if there are lots of them,
1474 the message gets confusing).
1475
230205fc
PH
1476PH/35 Change the default for dns_check_names_pattern to allow slashes within
1477 names, as there are now some PTR records that contain slashes. This check
1478 is only to protect against broken name servers that fall over on strange
1479 characters, so the fact that it applies to all lookups doesn't matter.
1480
75e0e026
PH
1481PH/36 Now that the new test suite is complete, we can remove some of the
1482 special code in Exim that was needed for the old test suite. For example,
1483 sorting DNS records because real resolvers return them in an arbitrary
1484 order. The new test suite's fake resolver always returns records in the
1485 same order.
1486
1487PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1488 bounces) except when queue_only is set, to avoid logging races between
1489 the different processes.
1490
145396a6
PH
1491PH/38 Panic-die if .include specifies a non-absolute path.
1492
3cd34f13
PH
1493PH/39 A tweak to the "H" retry rule from its user.
1494
11121d3d
JJ
1495JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1496 a label. They prevented compilation on older perls.
1497
1498JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1499 a warning to be raised on newish perls.
1500
1501JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1502 on queue. Changes to match documented behaviour of showing count of
1503 messages matching specified criteria.
1504
8def5aaf
PH
1505PH/40 Changed the default ident timeout from 30s to 5s.
1506
929ba01c
PH
1507PH/41 Added support for the use of login_cap features, on those BSD systems
1508 that have them, for controlling the resources used by pipe deliveries.
1509
2632889e
PH
1510PH/42 The content-scanning code uses fopen() to create files in which to put
1511 message data. Previously it was not paying any attention to the mode of
1512 the files. Exim runs with umask(0) because the rest of the code creates
1513 files with open(), and sets the required mode explicitly. Thus, these
1514 files were ending up world-writeable. This was not a big issue, because,
1515 being within the spool directory, they were not world-accessible. I have
1516 created a function called modefopen, which takes an additional mode
1517 argument. It sets umask(777), creates the file, chmods it to the required
1518 mode, then resets the umask. All the relevant calls to fopen() in the
1519 content scanning code have been changed to use this function.
1520
944a9c55
PH
1521PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1522 to 24 hours. This avoids potential overflow problems when processing G
1523 and H retry rules. I suspect nobody ever tinkers with this value.
1524
4a23603b
PH
1525PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1526
4730f942
PH
1527PH/45 When the plaintext authenticator is running as a client, the server's
1528 challenges are checked to ensure they are valid base64 strings. By
1529 default, the authentication attempt is cancelled if an invalid string is
1530 received. Setting client_ignore_invalid_base64 true ignores these errors.
1531 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1532 they are received. Thus, the responses can be made to depend on the
1533 challenges. If an invalid string is ignored, an empty string is placed in
1534 the variable.
1535
30dba1e6
PH
1536PH/46 Messages that are created by the autoreply transport now contains a
1537 References: header, in accordance with RFCs 2822 and 3834.
1538
382afc6b
PH
1539PH/47 Added authenticated_sender_force to the smtp transport.
1540
a86229cf
PH
1541PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1542
50c99ba6
PH
1543PH/49 Installed latest patch from the Sieve maintainer.
1544
d35e429d
PH
1545PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1546 was also set, the appendfile transport was unnecessarily scanning a
1547 directory of message files (e.g. for maildir delivery) to find the count
1548 of files (along with the size), even though it did not need this
1549 information. It now does the scan only if it needs to find either the
1550 size of the count of files.
1551
f90d018c
PH
1552PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1553
75def545
PH
1554PH/52 Two bugs concerned with error handling when the smtp transport is
1555 used in LMTP mode:
1556
1557 (i) Exim was not creating retry information for temporary errors given
1558 for individual recipients after the DATA command when the smtp transport
1559 was used in LMTP mode. This meant that they could be retried too
1560 frequently, and not timed out correctly.
1561
1562 (ii) Exim was setting the flag that allows error details to be returned
1563 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1564 recipients that were returned after the DATA command.
1565
1566PH/53 This is related to PH/52, but is more general: for any failing address,
1567 when detailed error information was permitted to be returned to the
1568 sender, but the error was temporary, then after the final timeout, only
1569 "retry timeout exceeded" was returned. Now it returns the full error as
1570 well as "retry timeout exceeded".
1571
c46782ef
PH
1572PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1573 do this, and (what is worse) MTAs that accept it.
1574
71fafd95
PH
1575PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1576 will now be deprecated.
1577
2c5db4fd
PH
1578PH/56 New os.c-cygwin from the Cygwin maintainer.
1579
9cf6b11a
JJ
1580JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1581 formats (previously only available in exim formats via -bpr, -bpru,
1582 and -bpra. Now also available in native and exiqgrep formats)
1583
1584JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1585 with very large, slow to parse queues
1586
1587JJ/08 exipick: added ! as generic prefix to negate any criteria format
1588
1589JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1590
898d150f
PH
1591PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1592 responses to authentication challenges, though it was showing the
1593 challenges; (ii) I've removed the CR characters from the debug output for
1594 SMTP output lines.
1595
46218253
PH
1596PH/58 Allow for the insertion of a newline as well as a space when a string
1597 is turned into more than one encoded-word during RFC 2047 encoding. The
1598 Sieve code now uses this.
1599
e97957bc
PH
1600PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1601 data_4xx, lost_connection, tls_required.
1602
81e509d7
PH
1603PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1604 message was being sent as an SMTP response.
1605
3d240ff7
PH
1606PH/61 Add -l and -k options to exicyclog.
1607
b37c4101
PH
1608PH/62 When verifying, if an address was redirected to one new address, so that
1609 verification continued, and the new address failed or deferred after
1610 having set something in $address_data, the value of $address_data was not
1611 passed back to the ACL. This was different to the case when no
1612 redirection occurred. The value is now passed back in both cases.
1613
79378e0f
PH
1614PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1615 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1616 use login_cap.h, so on its own it isn't the distinguishing feature. The
1617 new name refers directly to the setclassresources() function.
1618
e49c7bb4
PH
1619PH/65 Added configuration files for NetBSD3.
1620
d114ec46
PH
1621PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1622
f3d7df6c
PH
1623PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1624 is preferred over IPv4.
1625
715ab376
PH
1626PH/68 The bounce_return_message and bounce_return_body options were not being
1627 honoured for bounces generated during the reception of non-SMTP messages.
1628 In particular, this applied to messages rejected by the ACL. This bug has
1629 been fixed. However, if bounce_return_message is true and bounce_return_
1630 body is false, the headers that are returned for a non-SMTP message
1631 include only those that have been read before the error was detected.
1632 (In the case of an ACL rejection, they have all been read.)
1633
6b31b150
PH
1634PH/69 The HTML version of the specification is now built in a directory called
1635 spec_html instead of spec.html, because the latter looks like a path with
1636 a MIME-type, and this confuses some software.
1637
1638PH/70 Catch two compiler warnings in sieve.c.
1639
d515a917
PH
1640PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1641 function verify_get_ident() calls ip_connect() to connect a socket, but
1642 if the "connect()" function timed out, ip_connect() used to close the
1643 socket. However, verify_get_ident() also closes the socket later, and in
1644 between Exim writes to the log, which may get opened at this point. When
1645 the socket was closed in ip_connect(), the log could get the same file
1646 descriptor number as the socket. This naturally causes chaos. The fix is
1647 not to close the socket in ip_connect(); the socket should be closed by
1648 the function that creates it. There was only one place in the code where
1649 this was missing, in the iplookup router, which I don't think anybody now
1650 uses, but I've fixed it anyway.
1651
9b8fadde
PH
1652PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1653 well as to direct DNS lookups. Otherwise the handling of names in host
1654 lists is inconsistent and therefore confusing.
1655
214e2000 1656
5de37277
PH
1657Exim version 4.60
1658-----------------
1659
cc38ddbf
PH
1660PH/01 Two changes to the default runtime configuration:
1661
1662 (1) Move the checks for relay_from_hosts and authenticated clients from
1663 after to before the (commented out) DNS black list checks.
1664
1665 (2) Add control=submission to the relay_from_hosts and authenticated
1666 clients checks, on the grounds that messages accepted by these
1667 statements are most likely to be submissions.
5de37277 1668
72fdd6ae
PH
1669PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1670
1671 (1) Generate an error if the third argument for the ${prvs expansion is
1672 not a single digit.
1673
1674 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1675 string.
1676
1677 (3) Reset the variables that are obtained from the first argument of
1678 ${prvscheck and used in the second argument before leaving the code,
1679 because their memory is reclaimed, so using them afterwards may do
1680 silly things.
1681
1682 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1683 one (it's much easier than Tom thought :-).
1684
1685 (5) Because of (4), we can now allow for the use of $prvscheck_result
1686 inside the third argument.
cb9328de 1687
cb741023
PH
1688PH/03 For some reason, the default setting of PATH when running a command from
1689 a pipe transport was just "/usr/bin". I have changed it to
1690 "/bin:/usr/bin".
1691
f174f16e
PH
1692PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1693 anything to be listed in the output from -bV.
b2f5a032 1694
c25242d7
PH
1695PH/05 When a filter generated an autoreply, the entire To: header line was
1696 quoted in the delivery log line, like this:
1697
1698 => >A.N.Other <ano@some.domain> <original@ddress> ...
1699
1700 This has been changed so that it extracts the operative address. There
1701 may be more than one such address. If so, they are comma-separated, like
1702 this:
1703
1704 => >ano@some.domain,ona@other.domain <original@ddress> ...
1705
82c19f95
PH
1706PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1707 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1708 not being looked up in the rDNS to get a host name, Exim was showing the
1709 IP address twice in Received: lines, even though the IP addresses were
1710 identical. For example:
1711
1712 Received: from [1.2.3.4] (helo=[1.2.3.4])
1713
1714 However, if the real host name was known, it was omitting the HELO data
1715 if it matched the actual IP address. This has been tidied up so that it
1716 doesn't show the same IP address twice.
1717
d7ffbc12
PH
1718PH/07 When both +timestamp and +memory debugging was on, the value given by
1719 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1720 called by the debug printing, thereby overwriting the timestamp buffer.
1721 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1722
9f526266
PH
1723PH/08 When the original message was included in an autoreply transport, it
1724 always said "this is a copy of the message, including all the headers",
1725 even if body_only or headers_only was set. It now gives an appropriate
1726 message.
1727
87fcc8b9
PH
1728PH/09 Applied a patch from the Sieve maintainer which:
1729
1730 o fixes some comments
1731 o adds the (disabled) notify extension core
1732 o adds some debug output for the result of if/elsif tests
1733 o points to the current vacation draft in the documentation
1734 and documents the missing references header update
1735
1736 and most important:
1737
1738 o fixes a bug in processing the envelope test (when testing
1739 multiple envelope elements, the last element determinted the
1740 result)
1741
456682f5
PH
1742PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1743 Electronic Mail") by including:
1744
1745 Auto-submitted: auto-generated
1746
1747 in the messages that it generates (bounce messages and others, such as
1748 warnings). In the case of bounce messages for non-SMTP mesages, there was
1749 also a typo: it was using "Auto_submitted" (underscore instead of
1750 hyphen). Since every message generated by Exim is necessarily in response
1751 to another message, thes have all been changed to:
1752
1753 Auto-Submitted: auto-replied
1754
1755 in accordance with these statements in the RFC:
1756
1757 The auto-replied keyword:
1758
1759 - SHOULD be used on messages sent in direct response to another
1760 message by an automatic process,
1761
1762 - MUST NOT be used on manually-generated messages,
1763
1764 - MAY be used on Delivery Status Notifications (DSNs) and Message
1765 Disposition Notifications (MDNs),
1766
1767 - MUST NOT be used on messages generated by automatic or periodic
1768 processes, except for messages which are automatic responses to
1769 other messages.
1770
3e46c1aa
PH
1771PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1772 to the default Received: header definition.
456682f5 1773
49826d12
PH
1774PH/12 Added log selector acl_warn_skipped (default on).
1775
eba0c039
PH
1776PH/13 After a successful wildlsearch lookup, discard the values of numeric
1777 variables because (a) they are in the wrong storage pool and (b) even if
1778 they were copied, it wouldn't work properly because of the caching.
1779
a0d6ba8a
PH
1780PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1781 checking when decoding. Apparently there are clients that generate
1782 overlong encoded strings. Why am I not surprised?
1783
f0917727
PH
1784PH/15 If the first argument of "${if match_address" was not empty, but did not
1785 contain an "@" character, Exim crashed. Now it writes a panic log message
1786 and treats the condition as false.
1787
096fee00
PH
1788PH/16 In autoreply, treat an empty string for "once" the same as unset.
1789
024bd3c2
PH
1790PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1791 extension "envelope-auth". The code is finished and in agreement with
1792 other implementations, but there is no documentation so far and in fact,
1793 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1794 not changing the active code.
1795
1796 Print executed "if" and "elsif" statements when debugging is used. This
1797 helps a great deal to understand what a filter does.
1798
1799 Document more things not specified clearly in RFC3028. I had all this
1800 sorted out, when out of a sudden new issues came to my mind. Oops."
1801
df199fec
PH
1802PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1803 (Bugzilla #53).
1804
d27f1df3
PH
1805PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1806 canonical form (as documented). However, after a host name lookup from
1807 the IP address, check_host() was doing a simple string comparison with
1808 addresses acquired from the DNS when checking that the found name did
1809 have the original IP as one of its addresses. Since any found IPv6
1810 addresses are likely to be in abbreviated form, the comparison could
1811 fail. Luckily, there already exists a function for doing the comparison
1812 by converting both addresses to binary, so now that is used instead of
1813 the text comparison.
1814
96776534
PH
1815PH/20 There was another similar case to PH/19, when a complete host name was
1816 given in a host list; looking up its IP address could give an abbreviated
1817 form, whereas the current host's name might or might not be abbreviated.
1818 The same fix has been applied.
1819
5de37277 1820
9a799bc0
PH
1821Exim version 4.54
1822-----------------
1823
1824PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1825 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1826 It now does.
1827
99a4b039
PH
1828PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1829 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1830
1831PH/03 Typo: missing ".o" in src/pcre/Makefile.
1832
4b233853
PH
1833PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1834 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1835 Also, for "Auto-Submitted", treat anything other than "no" as
1836 non-personal, in accordance with RFC 3834. (Previously it treated
1837 anything starting "auto-" as non-personal.)
1838
8857ccfd
PH
1839TF/01 The control=submission/name=... option had a problem with syntax
1840 errors if the name included a slash character. The /name= option
1841 now slurps the rest of the string, so it can include any characters
1842 but it must come last in the list of options (after /sender_retain
1843 or /domain=).
1844
433a2980
PH
1845PH/05 Some modifications to the interface to the fake nameserver for the new
1846 testing suite.
1847
3e46c1aa 1848
9a799bc0 1849
e3a311ba
TK
1850Exim version 4.53
1851-----------------
1852
1853TK/01 Added the "success_on_redirect" address verification option. See
1854 NewStuff for rationale and an example.
1855
13b685f9
PH
1856PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1857
395ff96d
PH
1858PH/02 Patch to exigrep to allow it to work on syslog lines.
1859
5b68f6e4
PH
1860PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1861 fread() to skip over the body file's header line, because in Cygwin the
1862 header line is locked and is inaccessible.
1863
1ab52c69
PH
1864PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1865 co-exist for some time) to make it clear that it is the Exim ID that is
1866 referenced, not the Message-ID: header line.
1867
b07e6aa3
PH
1868PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1869 string_format() function, because snprintf() does not exist on all
1870 operating systems.
1871
254e032f
PH
1872PH/06 The use of forbid_filter_existstest now also locks out the use of the
1873 ${stat: expansion item.
1874
3af76a81
PH
1875PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1876 protocol synchronization error", to keep the pedants happy.
1877
2548ba04
PH
1878PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1879 well as for IRIX systems, when gcc is being used. See the host.c source
1880 file for comments.
1881
b6c6011d
PH
1882PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1883
cf39cf57
PH
1884PH/10 Named domain lists were not working if used in a queue_smtp_domains
1885 setting.
1886
f1513293
PH
1887PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1888 transport and to the smtp transport in LMTP mode.
1889
727549a4
PH
1890TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1891
af46795e
PH
1892PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1893 run a filter in a subprocess. This could lead to confusion in subsequent
1894 lookups in the parent process. There should also be a search_tidyup() at
1895 the end of the subprocess.
1896
d7b47fd0
PH
1897PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1898 only if the host matched helo_try_verify_hosts, which caused the
1899 verification to occur when the EHLO/HELO command was issued. The ACL just
1900 tested the remembered result. Now, if a previous verification attempt has
1901 not happened, "verify = helo" does it there and then.
1902
ee744174
JJ
1903JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1904
b582ab87
PH
1905TK/03 Fix log output including CR from clamd.
1906
41a13e0a
PH
1907PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1908 exist provoked a memory error which could cause a segfault.
1909
f625cc5a
PH
1910PH/15 Installed PCRE 6.2
1911
1912PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1913
21f7af35
PH
1914PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1915 of the problem. Specifically, suggested +O2 rather than +O1 for the
1916 HP-UX compiler.
1917
31480e42
PH
1918PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1919
2d280592
PH
1920PH/20 If a delivery was routed to a non-standard port by means of an SRV
1921 record, the port was not correctly logged when the outgoing_port log
1922 selector was set (it logged the transort's default port).
1923
7cd1141b
PH
1924PH/21 Added support for host-specific ports to manualroute, queryprogram,
1925 fallback_hosts, and "hosts" in the smtp transport.
1926
1927PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1928 host errors such as "Connection refused".
1929
750af86e
PH
1930PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1931 authentication with radiusclient 0.4.9:
1932
1933 - Error returned from rc_read_config was caught wrongly
1934 - Username/password not passed on to radius server due to wrong length.
1935
1936 The presumption is that some radiusclient API changes for 4.51/PH/17
1937 were not taken care of correctly. The code is still untested by me (my
1938 Linux distribution still has 0.3.2 of radiusclient), but it was
1939 contributed by a Radius user.
1940
1941PH/24 When doing a callout, the value of $domain wasn't set correctly when
1942 expanding the "port" option of the smtp transport.
1943
4304270b
TK
1944TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1945 while reading a MIME header. Thanks to Tom Hughes for a patch.
1946
750af86e
PH
1947PH/24 Include config.h inside local_scan.h so that configuration settings are
1948 available.
1949
64ffc24f
PH
1950PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1951 that in an ACL for RCPT (for example), you can examine exactly what was
1952 received.
1953
5dd9625b
PH
1954PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1955 commands, but it was not correctly comparing the address with the actual
1956 client host address. Thus, it would show the EHLO address in Received:
1957 header lines when this was not necessary.
1958
5591031b
PH
1959PH/27 Added the % operator to ${eval:}.
1960
ba18e66a
PH
1961PH/28 Exim tries to create and chdir to its spool directory when it starts;
1962 it should be ignoring failures (because with -C, for example, it has lost
1963 privilege). It wasn't ignoring creation failures other than "already
1964 exists".
1965
9cec981f
PH
1966PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1967 -bV or -d is used.
1968
aa2b5c79
PH
1969PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1970 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1971 too many continuations, the temporary file was not being removed, and the
1972 return code was incorrect.
aa2b5c79 1973
48a53b7f
PH
1974PH/31 Missing "BOOL" in function definition in filtertest.c.
1975
1c59d63b
PH
1976PH/32 Applied Sieve patches from the maintainer.
1977
671012da
TK
1978TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1979
1509d3a8
PH
1980PH/33 Added "verify = not_blind".
1981
1982PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1983 Local/Makefile (with some defaults set). These are used in built scripts
1984 such as exicyclog, but they have never been used in the exim_install
1985 script (though there are many overriding facilities there). I have
1986 arranged that the exim_install script now takes note of these two
1987 settings.
1988
1989PH/35 Installed configuration files for Dragonfly.
1990
2fe1a124
PH
1991PH/36 When a locally submitted message by a trusted user did not contain a
1992 From: header, and the sender address was obtained from -f or from an SMTP
1993 MAIL command, and the trusted user did not use -F to supply a sender
1994 name, $originator_name was incorrectly used when constructing a From:
1995 header. Furthermore, $originator_name was used for submission mode
1996 messages from external hosts without From: headers in a similar way,
1997 which is clearly wrong.
1998
8800895a
PH
1999PH/37 Added control=suppress_local_fixups.
2000
ccfdb010
PH
2001PH/38 When log_selector = +received_sender was set, and the addition of the
2002 sender made the log line's construction buffer exactly full, or one byte
2003 less than full, an overflow happened when the terminating "\n" was
2004 subsequently added.
2005
1130bfb0
PH
2006PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2007 when the result of a list match is failure because a DNS lookup failed.
2008
ebcb507f
PH
2009PH/40 RM_COMMAND is now used in the building process.
2010
c35e155c
PH
2011PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2012 the "build-* directories that it finds.
2013
95d1f782
PH
2014PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2015 address in a domain literal was a prefix of an interface address.
2016
fd6de02e
PH
2017PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2018 when verifying a sender address, unless rewrite_headers is false.
2019
58de37c5
PH
2020PH/44 Wrote a long comment about why errors_to addresses are verified as
2021 recipients, not senders.
2022
261cf466
TF
2023TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2024 the ratelimit ACL was added.
2025
3ee512ff
PH
2026PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2027
e08c430f
PH
2028PH/46 Added extra information about PostgreSQL errors to the error string.
2029
bef5a11f
PH
2030PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2031 avoiding the need to install special zones in a real server. This is
2032 backwards compatible; if it can't find the fake resolver, it drops back.
2033 Thus, both old and new test suites can be run.
2034
7546de58
TF
2035TF/02 Added util/ratelimit.pl
2036
e5d5a95f
TF
2037TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2038 clock is set back in time.
2039
2e88a017
TF
2040TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2041 Candler <B.Candler@pobox.com>.
2042
a5f65aa4
TF
2043TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2044 OK for addresses that are the result of redirections.
2045
e7726cbf
PH
2046PH/48 A number of further additions for the benefit of the new test suite,
2047 including a fake gethostbyname() that interfaces to the fake DNS resolver
2048 (see PH/47 above).
2049
a7fdad5b
TF
2050TF/06 The fix for widen_domains has also been applied to qualify_single and
2051 search_parents which are the other dnslookup options that can cause
2052 header rewrites.
2053
6af56900
PH
2054PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2055 type ("H").
2056
0925ede6
PH
2057PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2058
66afa403
TF
2059TF/07 Exim produced the error message "an SRV record indicated no SMTP
2060 service" if it encountered an MX record with an empty target hostname.
2061 The message is now "an MX or SRV record indicated no SMTP service".
2062
0154e85a
TF
2063TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2064 if the DNS of the sending site is misconfigured. This is quite a
2065 common situation. This change restores the behaviour of treating a
2066 helo verification defer as a failure.
2067
16f12c76
PH
2068PH/51 If self=fail was set on a router, the bounce message did not include the
2069 actual error message.
2070
bbe902f0 2071
e5a9dba6
PH
2072Exim version 4.52
2073-----------------
2074
2075TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2076
22c3b60b
PH
2077PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2078 command itself ended in error, the underlying message about the transport
2079 filter timeout was being overwritten with the pipe command error. Now the
2080 underlying error message should be appended to the second error message.
2081
06a9b4b5
PH
2082TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2083
c1ac6996
PH
2084PH/02 Reduce the amount of output that "make" produces by default. Full output
2085 can still be requested.
2086
9c7a242c
PH
2087PH/03 The warning log line about a condition test deferring for a "warn" verb
2088 was being output only once per connection, rather than after each
2089 occurrence (because it was using the same function as for successful
2090 "warn" verbs). This seems wrong, so I have changed it.
2091
87ba3f5f
PH
2092TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2093 it should not have, which might have caused a crash in the right
2094 circumstances, but probably never did.
2095
2096PH/04 Installed a modified version of Tony Finch's patch to make submission
2097 mode fix the return path as well as the Sender: header line, and to
2098 add a /name= option so that you can make the user's friendly name appear
2099 in the header line.
2100
29aba418
TF
2101TF/03 Added the control = fakedefer ACL modifier.
2102
fe0dab11
TF
2103TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2104 Mark Lowes for thorough testing.
870f6ba8 2105
11d337a4
TK
2106TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2107
2108TK/03 Merged latest SRS patch from Miles Wilton.
2109
415c8f3b
PH
2110PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2111 with the definition in sysexits.h (which is #included earlier).
2112 Fortunately, Exim does not actually use EX_OK. The code used to try to
2113 preserve the sysexits.h value, by assumimg that macro definitions were
2114 scanned for macro replacements. I have been disabused of this notion,
2115 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2116
958541e9
PH
2117PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2118 in the smtp transport. When a block could not be written in a single
2119 write() function, the timeout was being re-applied to each part-write.
2120 This seems wrong - if the receiver was accepting one byte at a time it
2121 would take for ever. The timeout is now adjusted when this happens. It
2122 doesn't have to be particularly precise.
2123
c206415f
TK
2124TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2125 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2126
2a4be8f9
PH
2127PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2128 without a domain if the check to <postmaster@domain> fails.
2129
1cba11c5
SC
2130SC/01 Eximstats: added -xls and the ability to specify output files
2131 (patch written by Frank Heydlauf).
2132
2133SC/02 Eximstats: use FileHandles for outputing results.
2134
2135SC/03 Eximstats: allow any combination of xls, txt, and html output.
2136
2137SC/04 Eximstats: fixed display of large numbers with -nvr option
2138
2139SC/05 Eximstats: fixed merging of reports with empty tables.
2140
2141SC/06 Eximstats: added the -include_original_destination flag
2142
2143SC/07 Eximstats: removed tabs and trailing whitespace.
2144
1005d00e
TK
2145TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2146
2147TK/06 MBOX spool code: Add real "From " MBOX separator line
2148 so the .eml file is really in mbox format (even though
2149 most programs do not really care). Patch from Alex Miller.
2150
2151TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2152 The latter is generated from $received_to and is only set if the
2153 message has one envelope recipient. SA can use these headers,
2154 obviously out-of-the-box. Patch from Alex Miller.
2155
9b4768fa
PH
2156PH/08 The ${def test on a variable was returning false if the variable's
2157 value was "0", contrary to what the specification has always said!
2158 The result should be true unless the variable is empty.
2159
2160PH/09 The syntax error of a character other than { following "${if
2161 def:variable_name" (after optional whitespace) was not being diagnosed.
2162 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2163 accidental colon was present, for example, could give incorrect results.
2164
0d7eb84a
PH
2165PH/10 Tidied the code in a number of places where the st_size field of a stat()
2166 result is used (not including appendfile, where other changes are about
2167 to be made).
2168
2169PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2170 This involved changing a lot of size variables from int to off_t. It
2171 should work with maildirs and everything.
2172
40727bee
TK
2173TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2174 spamd dying while we are connected to it.
2175
554d2369
TF
2176TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2177 <jgh@wizmail.org>
2178
1f922db1
PH
2179PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2180 function for BDB 4.3.
2181
ef213c3b
PH
2182PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2183
8ac170f3
PH
2184PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2185 the sources for PCRE have been re-arranged and more files are now
2186 involved.
2187
b1c749bb
PH
2188PH/15 The code I had for printing potentially long long variables in PH/11
2189 above was not the best (it lost precision). The length of off_t variables
2190 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2191 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2192 to be "long long int" or "long int". This is needed for the internal
2193 formatting function string_vformat().
b1c749bb 2194
4aac9b49
PH
2195PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2196 the configuration file to be ":syslog", then the script "guesses" where
2197 the logs files are, rather than using the compiled in default. In our
2198 case the guess is not the same as the compiled default, so the script
2199 suddenly stopped working when I started to use syslog. The patch checks
2200 to see if log_file_path is "". If so, it attempts to read it from exim
2201 with no configuration file to get the compiled in version, before it
2202 falls back to the previous guessing code."
2203
294520c8
TK
2204TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2205 implementing BATV in an Exim configuration. See NewStuff for the gory
2206 details.
2207
5bd022fe
PH
2208PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2209 Makefile that are specific to HP-UX.
2210
90e9ce59
PH
2211PH/18 If the "use_postmaster" option was set for a recipient callout together
2212 with the "random" option, the postmaster address was used as the MAIL
2213 FROM address for the random test, but not for the subsequent recipient
2214 test. It is now used for both.
2215
5ea81592
PH
2216PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2217 patch removes a few documentation additions to RFC 3028, because the
2218 latest draft now contains them. It adds the new en;ascii-case comparator
2219 and a new error check for 8bit text in MIME parts. Comparator and
2220 require names are now matched exactly. I enabled the subaddress
2221 extension, but it is not well tested yet (read: it works for me)."
2222
c6c2dc1d
PH
2223PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2224 rework some of the code of TK/09 above to avoid the hardwired use of
2225 "%lld" and "long long". Replaced the call to snprintf() with a call to
2226 string_vformat().
2227
fffffe4c
PH
2228PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2229 records point to non-existent hosts", "retry timeout exceeded", and
2230 "retry time not reached for any host after a long failure period".
ca02eafb 2231
9a26b6b2
PH
2232PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2233 experimental DomainKeys support:
2234
2235 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2236 (2) On an error such as an illegally used "control", the wrong name for
2237 the control was given.
2238
2239 These problems did NOT occur unless DomainKeys support was compiled.
2240
4aee0225
PH
2241PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2242
32d668a5
PH
2243PH/24 Added ${if match_ip condition.
2244
8187c3f3
PH
2245PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2246 databases so that it will be absolutely obvious if a crash occurs in the
2247 DB library. This is a regular occurrence (often caused by mis-matched
2248 db.h files).
2249
ff790e47 2250PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2251 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2252 picked up on a user's system that detects such things. There doesn't seem
2253 to be a gcc warning option for this - only an attribute that has to be
2254 put on the function's prototype. It seems that in Fedora Core 4 they have
2255 set this on a number of new functions. No doubt there will be more in due
2256 course.
ff790e47 2257
5417f6d1
PH
2258PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2259 specify a transport. However, if an address that was verified by such a
2260 router was the subject of a callout, Exim crashed because it tried to
2261 read the rcpt_include_affixes from the non-existent transport. Now it
2262 just assumes that the setting of that option is false. This bug was
2263 introduced by 4.51/PH/31.
2264
59cf8544
PH
2265PH/28 Changed -d+all to exclude +memory, because that information is very
2266 rarely of interest, but it makes the output a lot bigger. People tend to
2267 do -d+all out of habit.
2268
e7ad8a65
PH
2269PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2270 code in os-type was giving problems when libc.so lives in lib64, like on
2271 x86_64 Fedora Core.
2272
ade42478
PH
2273PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2274 aren't the modern standard, and it seems that some systems' include files
2275 don't always have them. Exim was already checking for some of the newer
2276 ones like T_AAAA, and defining it itself. I've added checks for all the
2277 record types that Exim uses.
2278
182ad5cf
PH
2279PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2280 not automatically generating a new one, as it is supposed to. This
2281 prevented TLS from working. If the file did exist, but contained invalid
2282 data, a new version was generated, as expected. It was only the case of a
2283 non-existent file that was broken.
2284
b0d9fc80
TK
2285TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2286 with a change in libdomainkeys > 0.64.
2287
2288TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2289 from DNS. If the selector record carries the flag, it now has
2290 precedence over the domain-wide flag.
2291
2292TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2293
47c7a64a
PH
2294PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2295 the use of a port name that isn't defined in /etc/services) occurred, the
2296 message was deferred as in a normal delivery, and thus remained on the
2297 spool, instead of being failed because of the mua_wrapper setting. This
2298 is now fixed, and I tidied up some of the mua_wrapper messages at the
2299 same time.
2300
a388bce4
SC
2301SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2302 the messages in a hash of arrays rather than using individual hashes.
2303 This is a bit cleaner and results in dramatic memory savings, albeit
2304 at a slight CPU cost.
2305
2306SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2307 as requested by Marc Sherman.
2308
2309SC/10 Eximstats: added histograms for user specified patterns as requested
2310 by Marc Sherman.
2311
0793e4ed
SC
2312SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2313
c58b88df
PH
2314PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2315 fopen() in the content-scanning modules that did not already have it.
2316
e7ad8a65 2317
7982096b
PH
2318Exim version 4.51
2319-----------------
2320
1a46a8c5
PH
2321TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2322 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2323
2f079f46 2324TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2325
2326TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2327
2328PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2329 to test Sieve filters that use "vacation".
2330
2331PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2332 that changes the way the GnuTLS parameters are stored in the cache file.
2333 The new format can be generated externally. For backward compatibility,
2334 if the data in the cache doesn't make sense, Exim assumes it has read an
2335 old-format file, and it generates new data and writes a new file. This
2336 means that you can't go back to an older release without removing the
2337 file.
2338
2339PH/03 A redirect router that has both "unseen" and "one_time" set does not
2340 work if there are any delivery delays because "one_time" forces the
2341 parent to be marked "delivered", so its unseen clone is never tried
2342 again. For this reason, Exim now forbids the simultaneous setting of
2343 these two options.
2344
2345PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2346 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2347 entry if you want to know the details. The fix, however, neglected to
2348 consider the case when local delivery batching is involved. The test for
2349 "previously delivered" was not happening when checking to see if an
2350 address could be batched with a previous (undelivered) one; under
2351 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2352 address.
1a46a8c5
PH
2353
2354PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2355 in its include files, and this causes problems building Exim.
2356
2357PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2358 header_syntax) but Exim was just ignoring anything given after a slash.
2359 In particular, this caused confusion with an attempt to use "verify =
2360 reverse_host_lookup/defer_ok". An error is now given when options are
2361 supplied for verify items that do not have them. (Maybe reverse_host_
2362 lookup should have a defer_ok option, but that's a different point.)
2363
2364PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2365 defined by RFC 821) to 2048, because there were problems with some AUTH
2366 commands, and RFC 1869 says the size should be increased for extended
2367 SMTP commands that take arguments.
2368
2369PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2370 Finch).
2371
2372PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2373 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2374
49c2d5ea
PH
2375PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2376 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2377 whatever). Otherwise the password may appear in the log. Following change
2378 PH/42 below, there is no longer a chance of it appearing in a bounce
2379 message.
49c2d5ea 2380
bf759a8b
PH
2381PH/11 Installed exipick version 20050225.0 from John Jetmore.
2382
83364d30
PH
2383PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2384 of its addresses was ever tried. (Bugzilla bug #2.)
2385
7999bbd7
PH
2386PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2387 the result incorrectly in the debug output. (It correctly added a newline
2388 to what was transported.)
2389
7dbf77c9
PH
2390TF/01 Added $received_time.
2391
74e0617f
PH
2392PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2393 commented out examples of how to interface to a virus scanner and to
2394 SpamAssassin. Also added commented examples of av_scanner and
2395 spamd_address settings.
2396
2f079f46
PH
2397PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2398 and controls are allowed in which ACLs. There were a couple of minor
2399 errors. Some of the entries in the conditions table (which is a table of
2400 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2401 negation of where the condition IS allowed.
2402
8c841523
PH
2403PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2404
7766a4f0
PH
2405PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2406 header file does not have a version number, so I've had to invent a new
2407 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2408 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2409 radiusclient), but it was contributed by a Radius user.
2410
8b417f2c
PH
2411PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2412 files or directories, for OpenSSL.
2413
901f42cb
PH
2414PH/19 When an Exim process that is running as root has to create an Exim log
2415 file, it does so in a subprocess that runs as exim:exim so as to get the
2416 ownership right at creation (otherwise, other Exim processes might see
2417 the file with the wrong ownership). There was no test for failure of this
2418 fork() call, which would lead to the process getting stuck as it waited
2419 for a non-existent subprocess. Forks do occasionally fail when resources
2420 run out. I reviewed all the other calls to fork(); they all seem to check
2421 for failure.
2422
f9b9210e
PH
2423PH/20 When checking for unexpected SMTP input at connect time (before writing
2424 the banner), Exim was not dealing correctly with a non-positive return
2425 from the read() function. If the client had disconnected by this time,
2426 the result was a log entry for a synchronization error with an empty
2427 string after "input=" when read() returned zero. If read() returned -1
2428 (an event I could not check), uninitialized data bytes were printed.
2429 There were reports of junk text (parts of files, etc) appearing after
2430 "input=".
2431
54cdb463
PH
2432PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2433
cf00dad6
PH
2434PH/22 Added support for macro redefinition, and (re)definition in between
2435 driver and ACL definitions.
2436
acb1b346
PH
2437PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2438 forgetting to use the resulting value; it was using the unexpanded value.
2439
c5ddb310
PH
2440PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2441 hadn't been configured. The fix is from Juergen Kreileder, who
2442 understands it better than I do:
2443
2444 "Here's what I see happening with three configured cyrus_sasl
2445 authenticators configured (plain, login, cram-md5):
2446
2447 On startup auth_cyrus_sasl_init() gets called for each of these.
2448 This means three calls to sasl_listmech() without a specified mech_list.
2449 => SASL tests which mechs of all available mechs actually work
2450 => three warnings about OTP not working
2451 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2452
2453 With the patch, sasl_listmech() also gets called three times. But now
2454 SASL's mech_list option is set to the server_mech specified in the the
2455 authenticator. Or in other words, the answer from sasl_listmech()
2456 gets limited to just the mech you're testing for (which is different
2457 for each call.)
2458 => the return list contains just 'plain' or 'login', 'cram-md5' or
2459 nothing depending on the value of ob->server_mech.
2460
2461 I've just tested the patch: Authentication still works fine,
2462 unavailable mechs specified in the exim configuration are still
2463 caught, and the auth.log warnings about OTP are gone."
2464
31619da6
PH
2465PH/25 When debugging is enabled, the contents of the command line are added
2466 to the debugging output, even when log_selector=+arguments is not
2467 specified.
2468
bebaf0fc
PH
2469PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2470 answer is "GNU", and only if the return is "GNU/something" is the answer
2471 "Linux".
2472
475fe28a
PH
2473PH/27 $acl_verify_message is now set immediately after the failure of a
2474 verification in an ACL, and so is available in subsequent modifiers. In
2475 particular, the message can be preserved by coding like this:
2476
2477 warn !verify = sender
2478 set acl_m0 = $acl_verify_message
2479
2480 Previously, $acl_verify_message was set only while expanding "message"
2481 and "log_message" when a very denied access.
2482
7e8bec7a
PH
2483PH/28 Modified OS/os.c-Linux with
2484
2485 -#ifndef OS_LOAD_AVERAGE
2486 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2487
2488 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2489 nomenclature these days.)
2490
e4a89c47
PH
2491PH/29 Installed patch from the Sieve maintainer that adds the options
2492 sieve_useraddress and sieve_subaddress to the redirect router.
2493
5ca2a9a1
PH
2494PH/30 In these circumstances:
2495 . Two addresses routed to the same list of hosts;
2496 . First host does not offer TLS;
2497 . First host accepts first address;
2498 . First host gives temporary error to second address;
2499 . Second host offers TLS and a TLS session is established;
2500 . Second host accepts second address.
2501 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2502 and peerdn, if requested) that were in fact used only for the second
2503 address.
7e8bec7a 2504
c688b954
PH
2505PH/31 When doing a callout as part of verifying an address, Exim was not paying
2506 attention to any local part prefix or suffix that was matched by the
2507 router that accepted the address. It now behaves in the same way as it
2508 does for delivery: the affixes are removed from the local part unless
2509 rcpt_include_affixes is set on the transport.
2510
fed77020
PH
2511PH/32 Add the sender address, as F=<...>, to the log line when logging a
2512 timeout during the DATA phase of an incoming message.
2513
7fe1560f
PH
2514PH/33 Sieve envelope tests were broken for match types other than :is. I have
2515 applied a patch sanctioned by the Sieve maintainer.
c688b954 2516
ebb6e6d5
PH
2517PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2518 the uid or gid is negative. A case of a negative gid caused this to be
2519 noticed. The fix allows for either to be negative.
2520
9c4e8f60
PH
2521PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2522 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2523 overlooked.
2524
2525PH/36 The change PH/12 above was broken. Fixed it.
2526
d7174846
PH
2527PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2528 the grounds that routing the same address twice would always produce the
2529 same answer. This might have been true once, but it is certainly no
2530 longer true now. Routing a child address may depend on the previous
2531 routing that produced that child. Some complicated redirection strategies
2532 went wrong when messages had multiple recipients, and made Exim's
2533 behaviour dependent on the order in which the addresses were given.
2534
2535 I have moved the duplicate checking until after the routing is complete.
2536 Exim scans the addresses that are assigned to local and remote
2537 transports, and removes any duplicates. This means that more work will be
2538 done, as duplicates will always all be routed, but duplicates are
2539 presumably rare, so I don't expect this is of any significance.
2540
2541 For deliveries to pipes, files, and autoreplies, the duplicate checking
2542 still happens during the routing process, since they are not going to be
2543 routed further.
2544
cfe75fc3
PH
2545PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2546 It corrects a timeout issue with spamd. This is Ian's comment: "The
2547 background is that sometimes spamd either never reads data from a
2548 connection it has accepted, or it never writes response data. The exiscan
2549 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2550 blindly assumes that writes won't block so it may never time out."
2551
be22d70e
PH
2552PH/39 Allow G after quota size as well as K and M.
2553
0612b098
PH
2554PH/40 The value set for $authenticated_id in an authenticator may not contain
2555 binary zeroes or newlines because the value is written to log lines and
2556 to spool files. There was no check on this. Now the value is run through
2557 the string_printing() function so that such characters are converted to
2558 printable escape sequences.
2559
2e0c1448
PH
2560PH/41 $message_linecount is a new variable that contains the total number of
2561 lines in the message. Compare $body_linecount, which is the count for the
2562 body only.
2563
447d236c
PH
2564PH/42 Exim no longer gives details of delivery errors for specific addresses in
2565 bounce and delay warning messages, except in certain special cases, which
2566 are as follows:
2567
2568 (a) An SMTP error message from a remote host;
2569 (b) A message specified in a :fail: redirection;
2570 (c) A message specified in a "fail" command in a system filter;
2571 (d) A message specified in a FAIL return from the queryprogram router;
2572 (e) A message specified by the cannot_route_message router option.
2573
2574 In these cases only, Exim does include the error details in bounce and
2575 warning messages. There are also a few cases where bland messages such
2576 as "unrouteable address" or "local delivery error" are given.
2577
d20976dc
PH
2578PH/43 $value is now also set for the "else" part of a ${run expansion.
2579
f656d135
PH
2580PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2581 being worked on, but at least Exim now implements the latest version to
2582 play with."
2583
2e2a30b4
PH
2584PH/45 In a pipe transport, although a timeout while waiting for the pipe
2585 process to complete was treated as a delivery failure, a timeout while
2586 writing the message to the pipe was logged, but erroneously treated as a
2587 successful delivery. Such timeouts include transport filter timeouts. For
2588 consistency with the overall process timeout, these timeouts are now
2589 treated as errors, giving rise to delivery failures by default. However,
2590 there is now a new Boolean option for the pipe transport called
2591 timeout_defer, which, if set TRUE, converts the failures into defers for
2592 both kinds of timeout. A transport filter timeout is now identified in
2593 the log output.
2594
9176e9f0
PH
2595PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2596 systems where "make" and "gmake" are different, calling "gmake" at top
2597 level broke things. I've arranged for the value of $(MAKE) to be passed
2598 from the Makefile to this script so that it can call the same version of
2599 "make".
2600
7982096b 2601
bbe902f0
PH
2602A note about Exim versions 4.44 and 4.50
2603----------------------------------------
2604
2605Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2606changes of various kinds. As a consequence, a big documentation update was
2607needed. This delayed the release for rather longer than seemed good, especially
2608in the light of a couple of (minor) security issues. Therefore, the changes
2609that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2610release. So 4.44 and 4.50 are in effect two different branches that both start
2611from 4.43.
2612
2613I have left the 4.50 change log unchanged; it contains all the changes since
26144.43. The change log for 4.44 is below; many of its items are identical to
2615those for 4.50. This seems to be the most sensible way to preserve the
2616historical information.
2617
2618
f7b63901 2619Exim version 4.50
495ae4b0
PH
2620-----------------
2621
5fe762f6
PH
2622 1. Minor wording change to the doc/README.SIEVE file.
2623
139059f6 2624 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2625 computation of the current number of files was incorrect.
495ae4b0 2626
7086e875
PH
2627 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2628 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2629 place.
2630
35af9f61
PH
2631 4. Give more explanation in the error message when the command for a transport
2632 filter fails to execute.
2633
b668c215
PH
2634 5. There are several places where Exim runs a non-Exim command in a
2635 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2636 was being done only for the command run by the queryprogram router. It is
2637 now done for all such subprocesses. The other cases are: ${run, transport
2638 filters, and the commands run by the lmtp and pipe transports.
2639
a494b1e1
PH
2640 6. Added CONFIGURE_GROUP build-time option.
2641
2642 7. Some older OS have a limit of 256 on the maximum number of file
2643 descriptors. Exim was using setrlimit() to set 1000 as a large value
2644 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2645 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2646
c5fcb476
PH
2647 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2648 was an oversight, and furthermore, ever since the addition of extra
2649 controls (e.g. 4.43/32), the checks on when to allow different forms of
2650 "control" were broken. There should now be diagnostics for all cases when a
2651 control that does not make sense is encountered.
2652
69358f02
PH
2653 9. Added the /retain_sender option to "control=submission".
2654
5be20824
PH
265510. $recipients is now available in the predata ACL (oversight).
2656
eb2c0248
PH
265711. Tidy the search cache before the fork to do a delivery from a message
2658 received from the command line. Otherwise the child will trigger a lookup
2659 failure and thereby defer the delivery if it tries to use (for example) a
2660 cached ldap connection that the parent has called unbind on.
2661
2a3eea10
PH
266212. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2663 of $address_data from the recipient verification was clobbered by the
2664 sender verification.
2665
266613. The value of address_data from a sender verification is now available in
2667 $sender_address_data in subsequent conditions in the ACL statement.
2668
23c7ff99
PH
266914. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2670
4deaf07d
PH
267115. Added a new option "connect=<time>" to callout options, to set a different
2672 connection timeout.
2673
926e1192
PH
267416. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2675 was its contents. (It was OK if the option was not defined at all.)
2676
650edc6f
PH
267717. A "Completed" log line is now written for messages that are removed from
2678 the spool by the -Mrm option.
2679
2c7db3f5
PH
268018. New variables $sender_verify_failure and $recipient_verify_failure contain
2681 information about exactly what failed.
2682
3d235903
PH
268319. Added -dd to debug only the daemon process.
2684
7c7ad977
PH
268520. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2686 handles timeouts, both on the server side and network timeouts. Renamed the
2687 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2688
981756db
PH
268921. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2690 It is now set to "smtps".
2691
d4eb88df
PH
269222. $host_address is now set to the target address during the checking of
2693 ignore_target_hosts.
2694
269523. When checking ignore_target_hosts for an ipliteral router, no host name was
2696 being passed; this would have caused $sender_host_name to have been used if
2697 matching the list had actually called for a host name (not very likely,
2698 since this list is usually IP addresses). A host name is now passed as
2699 "[x.x.x.x]".
2700
7d468ab8
PH
270124. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2702 code that specifies a non-restarting handler (typically sigaction() in
2703 modern systems) in an attempt to fix a rare and obscure crash bug.
2704
270525. Narrowed the window for a race in the daemon that could cause it to ignore
2706 SIGCHLD signals. This is not a major problem, because they are used only to
2707 wake it up if nothing else does.
2708
62c0818f
PH
270926. A malformed maildirsize file could cause Exim to calculate negative values
2710 for the mailbox size or file count. Odd effects could occur as a result.
2711 The maildirsize information is now recalculated if the size or filecount
2712 end up negative.
2713
26034054
PH
271427. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2715 support for a long time. Removed HAVE_SYS_VFS_H.
2716
af66f652
PH
271728. Installed the latest version of exipick from John Jetmore.
2718
90af77f4
PH
271929. In an address list, if the pattern was not a regular expression, an empty
2720 subject address (from a bounce message) matched only if the pattern was an
2721 empty string. Non-empty patterns were not even tested. This was the wrong
2722 because it is perfectly reasonable to use an empty address as part of a
2723 database query. An empty address is now tested by patterns that are
2724 lookups. However, all the other forms of pattern expect the subject to
2725 contain a local part and a domain, and therefore, for them, an empty
2726 address still always fails if the pattern is not itself empty.
2727
d8ef3577
PH
272830. Exim went into a mad DNS loop when attempting to do a callout where the
2729 host was specified on an smtp transport, and looking it up yielded more
2730 than one IP address.
2731
5cb8cbc6
PH
273231. Re-factored the code for checking spool and log partition space into a
2733 function that finds that data and another that does the check. The former
2734 is then used to implement four new variables: $spool_space, $log_space,
2735 $spool_inodes, and $log_inodes.
2736
14702f5b
PH
273732. The RFC2047 encoding function was originally intended for short strings
2738 such as real names; it was not keeping to the 75-character limit for
2739 encoded words that the RFC imposes. It now respects the limit, and
2740 generates multiple encoded words if necessary. To be on the safe side, I
2741 have increased the buffer size for the ${rfc2047: expansion operator from
2742 1024 to 2048 bytes.
2743
063b1e99
PH
274433. It is now permitted to omit both strings after an "if" condition; if the
2745 condition is true, the result is "true". As before, when the second string
2746 is omitted, a false condition yields an empty string. This makes it less
2747 cumbersome to write custom ACL and router conditions.
2748
652e1b65
PH
274934. Failure to deliver a bounce message always caused it to be frozen, even if
2750 there was an errors_to setting on the router. The errors_to setting is now
2751 respected.
2752
6f0c9a4f
PH
275335. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2754 canonical form (fully expanded) before being placed in
2755 $sender_host_address.
2756
33397d19
PH
275736. The table in the code that translates DNS record types into text (T_A to
2758 "A" for instance) was missing entries for NS and CNAME. It is just possible
2759 that this could have caused confusion if both these types were looked up
2760 for the same domain, because the text type is used as part of Exim's
2761 per-process caching. But the chance of anyone hitting this buglet seems
2762 very small.
2763
7bb56e1f
PH
276437. The dnsdb lookup has been extended in a number of ways.
2765
2766 (1) There is a new type, "zns", which walks up the domain tree until it
2767 finds some nameserver records. It should be used with care.
2768
ea3bc19b
PH
2769 (2) There is a new type, "mxh", which is like "mx" except that it returns
2770 just the host names, not the priorities.
2771
2772 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2773 looked up. The behaviour when one of the lookups defers can be
2774 controlled by a keyword.
7bb56e1f 2775
ea3bc19b 2776 (4) It is now possible to specify the separator character for use when
7bb56e1f 2777 multiple records are returned.
33397d19 2778
0bcb2a0e
PH
277938. The dnslists ACL condition has been extended: it is now possible to supply
2780 a list of IP addresses and/or domains to be looked up in a particular DNS
2781 domain.
2782
2ac0e484
PH
278339. Added log_selector=+queue_time_overall.
2784
4e1fde53
PH
278540. When running the queue in the test harness, wait just a tad after forking a
2786 delivery process, to get repeatability of debugging output.
2787
de365ded
PH
278841. Include certificate and key file names in error message when GnuTLS fails
2789 to set them up, because the GnuTLS error message doesn't include the name
2790 of the failing file when there is a problem reading it.
2791
f05da2e8
PH
279242. Allow both -bf and -bF in the same test run.
2793
d6453af2
PH
279443. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2795
f7b63901
PH
279644. The "Exiscan patch" is now merged into the mainline Exim source.
2797
279845. Sometimes the final signoff response after QUIT could fail to get
2799 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2800 < 0 before doing a fflush(). This bug looks as though it goes back to the
2801 introduction of TLS in release 3.20, but "sometimes" must have been rare
2802 because the tests only now provoked it.
2803
a444213a
PH
280446. Reset the locale to "C" after calling embedded Perl, in case it was changed
2805 (this can affect the format of dates).
2806
0ec020ea
PH
280747. exim_tidydb, when checking for the continued existence of a message for
2808 which it has found a message-specific retry record, was not finding
2809 messages that were in split spool directories. Consequently, it was
2810 deleting retry records that should have stayed in existence.
2811
b1206957
PH
281248. Steve fixed some bugs in eximstats.
2813
281449. The SPA authentication driver was not abandoning authentication and moving
2815 on to the next authenticator when an expansion was forced to fail,
2816 contradicting the general specification for all authenticators. Instead it
2817 was generating a temporary error. It now behaves as specified.
2818
26dd5a95
PH
281950. The default ordering of permitted cipher suites for GnuTLS was pessimal
2820 (the order specifies the preference for clients). The order is now AES256,
2821 AES128, 3DES, ARCFOUR128.
2822
343b2385
PH
282351. Small patch to Sieve code - explicitly set From: when generating an
2824 autoreply.
2825
1c5466b9
PH
282652. Exim crashed if a remote delivery caused a very long error message to be
2827 recorded - for instance if somebody sent an entire SpamAssassin report back
2828 as a large number of 550 error lines. This bug was coincidentally fixed by
2829 increasing the size of one of Exim's internal buffers (big_buffer) that
2830 happened as part of the Exiscan merge. However, to be on the safe side, I
2831 have made the code more robust (and fixed the comments that describe what
2832 is going on).
2833
55ee9ee3
PH
283453. Now that there can be additional text after "Completed" in log lines (if
2835 the queue_time_overall log selector is set), a one-byte patch to exigrep
2836 was needed to allow it to recognize "Completed" as not the last thing in
2837 the line.
2838
d38f8232
PH
283954. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2840 patch that reportedly fixes this has been added. I am not expert enough to
2841 create a test for it. This is what the patch creator wrote:
2842
2843 "I found a little strange behaviour of ldap code when working with
2844 Windows 2003 AD Domain, where users was placed in more than one
2845 Organization Units. When I tried to give exim partial DN, the exit code
2846 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2847 But simultaneously result of request was absolutely normal ldap result,
2848 so I produce this patch..."
2849
3295e65b
PH
2850 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2851 REFERENCE, so I have modified the code to exclude the patch when that macro
2852 is not defined.
2853
7102e136
PH
285455. Some experimental protocols are using DNS PTR records for new purposes. The
2855 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2856 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2857 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2858 CAN-2005-0021
7102e136 2859
3ca0ba97
PH
286056. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2861
c2bcbe20
PH
286257. Double the size of the debug message buffer (to 2048) so that more of very
2863 long debug lines gets shown.
2864
18ce445d
PH
286558. The exicyclog utility now does better if the number of log files to keep
2866 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2867
1f5b4c3d
PH
286859. Two changes related to the smtp_active_hostname option:
2869
2870 (1) $smtp_active_hostname is now available as a variable.
2871 (2) The default for smtp_banner uses $smtp_active_hostname instead
2872 of $primary_hostname.
2873
b975ba52
PH
287460. The host_aton() function is supposed to be passed a string that is known
2875 to be a valid IP address. However, in the case of IPv6 addresses, it was
2876 not checking this. This is a hostage to fortune. Exim now panics and dies
2877 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2878 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2879 components; fortuitously, this particular loophole had already been fixed
2880 by change 4.50/55 above.
2881
2882 If there are any other similar loopholes, the new check in host_aton()
2883 itself should stop them being exploited. The report I received stated that
2884 data on the command line could provoke the exploit when Exim was running as
2885 exim, but did not say which command line option was involved. All I could
2886 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2887 running as the user.
ea3a6f44 2888 CAN-2005-0021
85b87bc2
PH
2889
289061. There was a buffer overflow vulnerability in the SPA authentication code
2891 (which came originally from the Samba project). I have added a test to the
2892 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2893 CAN-2005-0022
b975ba52 2894
17ffcae7
PH
289562. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2896 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2897
d95f9fdb
PH
289863. The daemon start-up calls getloadavg() while still root for those OS that
2899 need the first call to be done as root, but it missed one case: when
2900 deliver_queue_load_max is set with deliver_drop_privilege. This is
2901 necessary for the benefit of the queue runner, because there is no re-exec
2902 when deliver_drop_privilege is set.
2903
86b8287f
PH
290464. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2905 This has been fixed.
2906
60dc5e56
PH
290765. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2908 was in use, was not putting the data itself into the right store pool;
2909 consequently, it could be overwritten for a subsequent message in the same
2910 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2911 the caching.)
2912
533244af
PH
291366. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2914
a5a28604
PH
291567. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2916 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2917 the function were treating the return as a boolean value, which happened to
2918 work because 0=false and not-0=true, but is not correct code.
2919
7e634d24
PH
292068. The host_aton() function was not handling scoped IPv6 addresses (those
2921 with, for example, "%eth0" on the end) correctly.
2922
3e11c26b
PH
292369. Fixed some compiler warnings in acl.c for the bitmaps specified with
2924 negated items (that is, ~something) in unsigned ints. Some compilers
2925 apparently mutter when there is no cast.
2926
6729cf78
PH
292770. If an address verification called from an ACL failed, and did not produce a
2928 user-specific message (i.e. there was only a "system" message), nothing was
2929 put in $acl_verify_message. In this situation, it now puts the system
2930 message there.
2931
00f00ca5
PH
293271. Change 4.23/11 added synchronization checking at the start of an SMTP
2933 session; change 4.31/43 added the unwanted input to the log line - except
2934 that it did not do this in the start of session case. It now does.
2935
c9bdd01c
PH
293672. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2937 This is wrong and can cause the other end to generate a synchronization
2938 error if it is another Exim or anything else that does the synchronization
2939 check. A QUIT command is no longer sent after a timeout.
2940
d43194df
PH
294173. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2942 during host lookups.
2943
fe5b5d0b
PH
294474. The defer_ok option of callout verification was not working if it was used
2945 when verifying addresses in header lines, that is, for this case:
2946
2947 verify = header_sender/callout=defer_ok
2948
76a2d7ba
PH
294975. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2950 those file descriptors could be used for SMTP connections. If anything
2951 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2952 could be sent to the SMTP client, causing chaos. The daemon now opens
2953 stdin, stdout, and stderr to /dev/null when it puts itself into the
2954 background.
2955
295676. Arrange for output from Perl's "warn" command to be written to Exim's main
2957 log by default. The user can override this with suitable Perl magic.
2958
04f7d5b9
PH
295977. The use of log_message on a "discard" ACL verb, which is supposed to add to
2960 the log message when discard triggers, was not working for the DATA ACL or
2961 for the non-SMTP ACL.
2962
bc60667e
PH
296378. Error message wording change in sieve.c.
2964
bb6e88ff
PH
296579. If smtp_accept_max_per_host was set, the number of connections could be
2966 restricted to fewer than expected, because the daemon was trying to set up
2967 a new connection before checking whether the processes handling previous
2968 connections had finished. The check for completed processes is now done
2969 earlier. On busy systems, this bug wouldn't be noticed because something
2970 else would have woken the daemon, and it would have reaped the completed
2971 process earlier.
2972
1e70f85b
PH
297380. If a message was submitted locally by a user whose login name contained one
2974 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2975 It caused a spool format error. I have fixed the spool reading code. A
2976 related problem was that the "from" clause in the Received: line became
2977 illegal because of the space(s). It is now covered by ${quote_local_part.
2978
297981. Included the latest eximstats from Steve (adds average sizes to HTML Top
2980 tables).
2981
4e01f9d6
PH
298282. Updated OS/Makefile-AIX as per message from Mike Meredith.
2983
1ee1cef2
PH
298483. Patch from Sieve maintainer to fix unterminated string problem in
2985 "vacation" handling.
2986
6e2b4ccc
PH
298784. Some minor changes to the Linux configuration files to help with other
2988 OS variants using glibc.
2989
8e669ac1
PH
299085. One more patch for Sieve to update vacation handling to latest spec.
2991
495ae4b0 2992
bbe902f0
PH
2993----------------------------------------------------
2994See the note above about the 4.44 and 4.50 releases.
2995----------------------------------------------------
2996
2997
2998Exim version 4.44
2999-----------------
3000
3001 1. Change 4.43/35 introduced a bug that caused file counts to be
3002 incorrectly computed when quota_filecount was set in an appendfile
3003 transport
3004
3005 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3006 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3007 place.
3008
3009 3. Give more explanation in the error message when the command for a transport
3010 filter fails to execute.
3011
3012 4. There are several places where Exim runs a non-Exim command in a
3013 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3014 was being done only for the command run by the queryprogram router. It is
3015 now done for all such subprocesses. The other cases are: ${run, transport
3016 filters, and the commands run by the lmtp and pipe transports.
3017
3018 5. Some older OS have a limit of 256 on the maximum number of file
3019 descriptors. Exim was using setrlimit() to set 1000 as a large value
3020 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3021 systems. I've change it so that if it can't get 1000, it tries for 256.
3022
3023 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3024 was an oversight, and furthermore, ever since the addition of extra
3025 controls (e.g. 4.43/32), the checks on when to allow different forms of
3026 "control" were broken. There should now be diagnostics for all cases when a
3027 control that does not make sense is encountered.
3028
3029 7. $recipients is now available in the predata ACL (oversight).
3030
3031 8. Tidy the search cache before the fork to do a delivery from a message
3032 received from the command line. Otherwise the child will trigger a lookup
3033 failure and thereby defer the delivery if it tries to use (for example) a
3034 cached ldap connection that the parent has called unbind on.
3035
3036 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3037 of $address_data from the recipient verification was clobbered by the
3038 sender verification.
3039
304010. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3041 was its contents. (It was OK if the option was not defined at all.)
3042
304311. A "Completed" log line is now written for messages that are removed from
3044 the spool by the -Mrm option.
3045
304612. $host_address is now set to the target address during the checking of
3047 ignore_target_hosts.
3048
304913. When checking ignore_target_hosts for an ipliteral router, no host name was
3050 being passed; this would have caused $sender_host_name to have been used if
3051 matching the list had actually called for a host name (not very likely,
3052 since this list is usually IP addresses). A host name is now passed as
3053 "[x.x.x.x]".
3054
305514. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3056 code that specifies a non-restarting handler (typically sigaction() in
3057 modern systems) in an attempt to fix a rare and obscure crash bug.
3058
305915. Narrowed the window for a race in the daemon that could cause it to ignore
3060 SIGCHLD signals. This is not a major problem, because they are used only to
3061 wake it up if nothing else does.
3062
306316. A malformed maildirsize file could cause Exim to calculate negative values
3064 for the mailbox size or file count. Odd effects could occur as a result.
3065 The maildirsize information is now recalculated if the size or filecount
3066 end up negative.
3067
306817. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3069 support for a long time. Removed HAVE_SYS_VFS_H.
3070
ea3a6f44 307118. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3072
307319. Allow an empty sender to be matched against a lookup in an address list.
3074 Previously the only cases considered were a regular expression, or an
3075 empty pattern.
3076
307720. Exim went into a mad DNS lookup loop when doing a callout where the
3078 host was specified on the transport, if the DNS lookup yielded more than
3079 one IP address.
3080
ea3a6f44
NM
308121. The RFC2047 encoding function was originally intended for short strings
3082 such as real names; it was not keeping to the 75-character limit for
3083 encoded words that the RFC imposes. It now respects the limit, and
3084 generates multiple encoded words if necessary. To be on the safe side, I
3085 have increased the buffer size for the ${rfc2047: expansion operator from
3086 1024 to 2048 bytes.
bbe902f0 3087
ea3a6f44
NM
308822. Failure to deliver a bounce message always caused it to be frozen, even if
3089 there was an errors_to setting on the router. The errors_to setting is now
3090 respected.
bbe902f0
PH
3091
309223. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3093 canonical form (fully expanded) before being placed in
3094 $sender_host_address.
3095
309624. Updated eximstats to version 1.33
3097
ea3a6f44
NM
309825. Include certificate and key file names in error message when GnuTLS fails
3099 to set them up, because the GnuTLS error message doesn't include the name
3100 of the failing file when there is a problem reading it.
bbe902f0
PH
3101
310226. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3103 As per change 25.
bbe902f0 3104
ea3a6f44
NM
310527. Reset the locale to "C" after calling embedded Perl, in case it was changed
3106 (this can affect the format of dates).
bbe902f0 3107
ea3a6f44
NM
310828. exim_tidydb, when checking for the continued existence of a message for
3109 which it has found a message-specific retry record, was not finding
3110 messages that were in split spool directories. Consequently, it was
3111 deleting retry records that should have stayed in existence.
bbe902f0
PH
3112
311329. eximstats updated to version 1.35
3114 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3115 1.35 - bugfix such that pie charts by volume are generated correctly
3116
ea3a6f44
NM
311730. The SPA authentication driver was not abandoning authentication and moving
3118 on to the next authenticator when an expansion was forced to fail,
3119 contradicting the general specification for all authenticators. Instead it
3120 was generating a temporary error. It now behaves as specified.
bbe902f0 3121
ea3a6f44
NM
312231. The default ordering of permitted cipher suites for GnuTLS was pessimal
3123 (the order specifies the preference for clients). The order is now AES256,
3124 AES128, 3DES, ARCFOUR128.
bbe902f0 3125
ea3a6f44
NM
312631. Small patch to Sieve code - explicitly set From: when generating an
3127 autoreply.
bbe902f0 3128
ea3a6f44
NM
312932. Exim crashed if a remote delivery caused a very long error message to be
3130 recorded - for instance if somebody sent an entire SpamAssassin report back
3131 as a large number of 550 error lines. This bug was coincidentally fixed by
3132 increasing the size of one of Exim's internal buffers (big_buffer) that
3133 happened as part of the Exiscan merge. However, to be on the safe side, I
3134 have made the code more robust (and fixed the comments that describe what
3135 is going on).
bbe902f0 3136
ea3a6f44
NM
313733. Some experimental protocols are using DNS PTR records for new purposes. The
3138 keys for these records are domain names, not reversed IP addresses. The
3139 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3140 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3141 CAN-2005-0021
3142
ea3a6f44
NM
314334. The host_aton() function is supposed to be passed a string that is known
3144 to be a valid IP address. However, in the case of IPv6 addresses, it was
3145 not checking this. This is a hostage to fortune. Exim now panics and dies
3146 if the condition is not met. A case was found where this could be provoked
3147 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3148 components; fortuitously, this particular loophole had already been fixed
3149 by change 4.50/55 or 4.44/33 above.
3150
3151 If there are any other similar loopholes, the new check in host_aton()
3152 itself should stop them being exploited. The report I received stated that
3153 data on the command line could provoke the exploit when Exim was running as
3154 exim, but did not say which command line option was involved. All I could
3155 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3156 running as the user.
bbe902f0
PH
3157 CAN-2005-0021
3158
ea3a6f44
NM
315935. There was a buffer overflow vulnerability in the SPA authentication code
3160 (which came originally from the Samba project). I have added a test to the
3161 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3162 CAN-2005-0022
3163
ea3a6f44
NM
316436. The daemon start-up calls getloadavg() while still root for those OS that
3165 need the first call to be done as root, but it missed one case: when
3166 deliver_queue_load_max is set with deliver_drop_privilege. This is
3167 necessary for the benefit of the queue runner, because there is no re-exec
3168 when deliver_drop_privilege is set.
bbe902f0 3169
ea3a6f44
NM
317037. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3171 was in use, was not putting the data itself into the right store pool;
3172 consequently, it could be overwritten for a subsequent message in the same
3173 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3174 the caching.)
bbe902f0 3175
ea3a6f44
NM
317638. Sometimes the final signoff response after QUIT could fail to get
3177 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3178 < 0 before doing a fflush(). This bug looks as though it goes back to the
3179 introduction of TLS in release 3.20, but "sometimes" must have been rare
3180 because the tests only now provoked it.
bbe902f0
PH
3181
3182
495ae4b0
PH
3183Exim version 4.43
3184-----------------
3185
3186 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3187 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3188 Now it returns an integer. A number of calls were still expecting a T/F
3189 return. Fortuitously, in all cases, the tests worked in OK situations,
3190 which is the norm. However, things would have gone wrong on any write
3191 failures on the smtp file descriptor. This function is used when sending
3192 messages over SMTP and also when doing verify callouts.
3193
3194 2. When Exim is called to do synchronous delivery of a locally submitted
3195 message (the -odf or -odi options), it no longer closes stderr before doing
3196 the delivery.
3197
3198 3. Implemented the mua_wrapper option.
3199
3200 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3201
3202 5. Implemented the functions header_remove(), header_testname(),
3203 header_add_at_position(), and receive_remove_recipient(), and exported them
3204 to local_scan().
3205
3206 6. If an ACL "warn" statement specified the addition of headers, Exim already
3207 inserted X-ACL-Warn: at the start if there was no header name. However, it
3208 was not making this test for the second and subsequent header lines if
3209 there were newlines in the string. This meant that an invalid header could
3210 be inserted if Exim was badly configured.
3211
3212 7. Allow an ACL "warn" statement to add header lines at the start or after all
3213 the Received: headers, as well as at the end.
3214
3215 8. Added the rcpt_4xx retry error code.
3216
3217 9. Added postmaster_mailfrom=xxx to callout verification option.
3218
321910. Added mailfrom=xxxx to the callout verification option, for verify=
3220 header_sender only.
3221
322211. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3223 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3224
322512. Inserted some casts to stop certain compilers warning when using pointer
3226 differences as field lengths or precisions in printf-type calls (mostly
3227 affecting debugging statements).
3228
322913. Added optional readline() support for -be (dynamically loaded).
3230
323114. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3232 same clock tick as a message's arrival, so that its received time was the
3233 same as the "first fail" time on the retry record, and that message
3234 remained on the queue past the ultimate address timeout, every queue runner
3235 would try a delivery (because it was past the ultimate address timeout) but
3236 after another failure, the ultimate address timeout, which should have then
3237 bounced the address, did not kick in. This was a "< instead of <=" error;
3238 in most cases the first failure would have been in the next clock tick
3239 after the received time, and all would be well.
3240
324115. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3242 being recognized when the domain list was tested by the match_domain
3243 condition in an expansion string.
3244
324516. Added the ${str2b64: operator.
3246
324717. Exim was always calling setrlimit() to set a large limit for the number of
3248 processes, without checking whether the existing limit was already
3249 adequate. (It did check for the limit on file descriptors.) Furthermore,
3250 errors from getrlimit() and setrlimit() were being ignored. Now they are
3251 logged to the main and panic logs, but Exim does carry on, to try to do its
3252 job under whatever limits there are.
3253
325418. Imported PCRE 5.0.
3255
325619. Trivial typo in log message " temporarily refused connection" (the leading
3257 space).
3258
325920. If the log selector return_path_on_delivery was set and an address was
3260 redirected to /dev/null, the delivery process crashed because it assumed
3261 that a return path would always be set for a "successful" delivery. In this
3262 case, the whole delivery is bypassed as an optimization, and therefore no
3263 return path is set.
3264
326521. Internal re-arrangement: the function for sending a challenge and reading
3266 a response while authentication was assuming a zero-terminated challenge
3267 string. It's now changed to take a pointer and a length, to allow for
3268 binary data in such strings.
3269
327022. Added the cyrus_sasl authenticator (code supplied by MBM).
3271
327223. Exim was not respecting finduser_retries when seeking the login of the
3273 uid under which it was called; it was always trying 10 times. (The default
3274 setting of finduser_retries is zero.) Also, it was sleeping after the final
3275 failure, which is pointless.
3276
327724. Implemented tls_on_connect_ports.
3278
327925. Implemented acl_smtp_predata.
3280
328126. If the domain in control=submission is set empty, Exim assumes that the
3282 authenticated id is a complete email address when it generates From: or
3283 Sender: header lines.
3284
328527. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3286 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3287 chown and chgrp in /bin and hostname in /usr/bin.
3288
328928. Exim was keeping the "process log" file open after each use, just as it
3290 does for the main log. This opens the possibility of it remaining open for
3291 long periods when the USR1 signal hits a daemon. Occasional processlog
3292 errors were reported, that could have been caused by this. Anyway, it seems
3293 much more sensible not to leave this file open at all, so that is what now
3294 happens.
3295
329629. The long-running daemon process does not normally write to the log once it
3297 has entered its main loop, and it closes the log before doing so. This is
3298 so that log files can straightforwardly be renamed and moved. However,
3299 there are a couple of unusual error situations where the daemon does write
3300 log entries, and I had neglected to close the log afterwards.
3301
330230. The text of an SMTP error response that was received during a remote
3303 delivery was being truncated at 512 bytes. This is too short for some of
3304 the long messages that one sometimes sees. I've increased the limit to
3305 1024.
3306
330731. It is now possible to make retry rules that apply only when a message has a
3308 specific sender, in particular, an empty sender.
3309
331032. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3311 it possible to be selective about when SMTP synchronization is enforced.
3312
331333. Added "control = caseful_local_part" and "control = "caselower_local_part".
3314
331532. Implemented hosts_connection_nolog.
3316
331733. Added an ACL for QUIT.
3318
331934. Setting "delay_warning=" to disable warnings was not working; it gave a
3320 syntax error.
3321
332235. Added mailbox_size and mailbox_filecount to appendfile.
3323
332436. Added control = no_multiline_responses to ACLs.
3325
332637. There was a bug in the logic of the code that waits for the clock to tick
3327 in the case where the clock went backwards by a substantial amount such
3328 that the microsecond fraction of "now" was more than the microsecond
3329 fraction of "then" (but the whole seconds number was less).
3330
333138. Added support for the libradius Radius client library this is found on
3332 FreeBSD (previously only the radiusclient library was supported).
3333
3334
3335Exim version 4.42
3336-----------------
3337
3338 1. When certain lookups returned multiple values in the form name=value, the
3339 quoting of the values was not always being done properly. Specifically:
3340 (a) If the value started with a double quote, but contained no whitespace,
3341 it was not quoted.
3342 (b) If the value contained whitespace other than a space character (i.e.
3343 tabs or newlines or carriage returns) it was not quoted.
3344 This fix has been applied to the mysql and pgsql lookups by writing a
3345 separate quoting function and calling it from the lookup code. The fix
3346 should probably also be applied to nisplus, ibase and oracle lookups, but
3347 since I cannot test any of those, I have not disturbed their existing code.
3348
3349 2. A hit in the callout cache for a specific address caused a log line with no
3350 reason for rejecting RCPT. Now it says "Previous (cached) callout
3351 verification failure".
3352
3353 3. There was an off-by-one bug in the queryprogram router. An over-long
3354 return line was truncated at 256 instead of 255 characters, thereby
3355 overflowing its buffer with the terminating zero. As well as fixing this, I
3356 have increased the buffer size to 1024 (and made a note to document this).
3357
3358 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3359 when Exim is waiting for an SMTP response from a remote server, Exim
3360 restarts its select() call on the socket, thereby resetting its timeout.
3361 This is not a problem when such interrupts are rare. Somebody set up a cron
3362 job to run exiwhat every 2 minutes, which is less than the normal select()
3363 timeout (5 or 10 minutes). This meant that the select() timeout never
3364 kicked in because it was always reset. I have fixed this by comparing the
3365 time when an interrupt arrives with the time at the start of the first call
3366 to select(). If more time than the timeout has elapsed, the interrupt is
3367 treated as a timeout.
3368
3369 5. Some internal re-factoring in preparation for the addition of Sieve
3370 extensions (by MH). In particular, the "personal" test is moved to a
3371 separate function, and given an option for scanning Cc: and Bcc: (which is
3372 not set for Exim filters).
3373
3374 6. When Exim created an email address using the login of the caller as the
3375 local part (e.g. when creating a From: or Sender: header line), it was not
3376 quoting the local part when it contained special characters such as @.
3377
3378 7. Installed new OpenBSD configuration files.
3379
3380 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3381 try to make them clearer.
3382
3383 9. Callout options, other than the timeout value, were being ignored when
3384 verifying sender addresses in header lines. For example, when using
3385
3386 verify = header_sender/callout=no_cache
3387
3388 the cache was (incorrectly) being used.
3389
339010. Added a missing instance of ${EXE} to the exim_install script; this affects
3391 only the Cygwin environment.
3392
339311. When return_path_on_delivery was set as a log selector, if different remote
3394 addresses in the same message used different return paths and parallel
3395 remote delivery occurred, the wrong values would sometimes be logged.
3396 (Whenever a remote delivery process finished, the return path value from
3397 the most recently started remote delivery process was logged.)
3398
339912. RFC 3848 specifies standard names for the "with" phrase in Received: header
3400 lines when AUTH and/or TLS are in use. This is the "received protocol"
3401 field. Exim used to use "asmtp" for authenticated SMTP, without any
3402 indication (in the protocol name) for TLS use. Now it follows the RFC and
3403 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3404 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3405 names appear in log lines as well as in Received: header lines.
3406
340713. Installed MH's patches for Sieve to add the "copy" and "vacation"
3408 extensions, and comparison tests, and to fix some bugs.
3409
341014. Changes to the "personal" filter test:
3411
3412 (1) The test was buggy in that it was just doing the equivalent of
3413 "contains" tests on header lines. For example, if a user's address was
3414 anne@some.where, the "personal" test would incorrectly be true for
3415
3416 To: susanne@some.where
3417
3418 This test is now done by extracting each address from the header in turn,
3419 and checking the entire address. Other tests that are part of "personal"
3420 are now done using regular expressions (for example, to check local parts
3421 of addresses in From: header lines).
3422
3423 (2) The list of non-personal local parts in From: addresses has been
3424 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3425 taken from the Sieve specification recommendations.
3426
3427 (3) If the message contains any header line starting with "List-" it is
3428 treated as non-personal.
3429
3430 (4) The test for "circular" in the Subject: header line has been removed
3431 because it now seems ill-conceived.
3432
343315. Minor typos in src/EDITME comments corrected.
3434
343516. Installed latest exipick from John Jetmore.
3436
343717. If headers_add on a router specified a text string that was too long for
3438 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3439 of string_sprintf() is now avoided.
3440
344118. $message_body_size was not set (it was always zero) when running the DATA
3442 ACL and the local_scan() function.