Document 1041 merge (DCC fix).
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
5dc43717 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.632 2010/06/12 15:21:25 jetmore Exp $
495ae4b0
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2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
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
c0886197
PP
40PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
41 (Wolfgang Breyha)
42
8c07b69f 43
97fd1e48 44Exim version 4.73
ed7f7860 45-----------------
97fd1e48
PP
46
47PP/01 Date: & Message-Id: revert to normally being appended to a message,
48 only prepend for the Resent-* case. Fixes regression introduced in
49 Exim 4.70 by NM/22 for Bugzilla 607.
50
6901c596
PP
51PP/02 Include check_rfc2047_length in configure.default because we're seeing
52 increasing numbers of administrators be bitten by this.
53
a8c8d6b5
JJ
54JJ/01 Added DISABLE_DKIM and comment to src/EDITME
55
77bb000f
PP
56PP/03 Bugzilla 994: added openssl_options main configuration option.
57
a29e5231
PP
58PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
59
ec5a0394 60PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 61
55c75993
PP
62PP/06 Adjust NTLM authentication to handle SASL Initial Response.
63
453a6645 64PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
65 without a peer certificate, leading to a segfault because of an
66 assumption that peers always have certificates. Be a little more
453a6645
PP
67 paranoid. Problem reported by Martin Tscholak.
68
8544e77a
PP
69PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
70 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
71 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
72 CL also introduces -bmalware, various -d+acl logging additions and
73 more caution in buffer sizes.
8544e77a 74
83e029d5
PP
75PP/09 Implemented reverse_ip expansion operator.
76
ed7f7860
PP
77PP/10 Bugzilla 937: provide a "debug" ACL control.
78
7d9f747b
PP
79PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
80
4b2241d2
PP
81PP/12 Bugzilla 973: Implement --version.
82
10385c15
PP
83PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
84
dbc4b90d
PP
85PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
86
532be449
PP
87PP/15 Bugzilla 816: support multiple condition rules on Routers.
88
6a8de854 89PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
90 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
91 ignore trailing whitespace.
6a8de854 92
5dc43717
JJ
93JJ/02 prevent non-panic DKIM error from being sent to paniclog
94
95JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
96 "exim" to be used
55c75993 97
3346ab01
PP
98PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
99 Notification from Dr Andrew Aitchison.
100
491fab4c
PP
101PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
102 ExtendedDetectionInfo response format.
103 Notification from John Horne.
104
13eb9497
PP
105PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
106 compatible.
107
108PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
109 XSL and documented dependency on system catalogs, with examples of how
110 it normally works.
111
7f36d675
DW
112DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
113 access.
114
c1d94452
DW
115DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
116 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
117 configuration file which is writeable by the Exim user or group.
118
e2f5dc15
DW
119DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
120 of configuration files to cover files specified with the -C option if
121 they are going to be used with root privileges, not just the default
122 configuration file.
123
cd25e41d
DW
124DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
125 option (effectively making it always true).
126
261dc43e
DW
127DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
128 files to be used while preserving root privileges.
129
fa32850b
DW
130DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
131 that rogue child processes cannot use them.
132
79d4bc3d
PP
133PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
134 run-time user, instead of root.
135
2cfd3221
PP
136PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
137 Exim run-time user without dropping privileges.
138
fb08281f
DW
139DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
140 result string, instead of calling string_vformat() twice with the same
141 arguments.
3346ab01 142
74935b98
DW
143DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
144 for other users. Others should always drop root privileges if they use
145 -C on the command line, even for a whitelisted configure file.
146
90b6341f
DW
147DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
148
57730b52
ML
149NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
150
66581d1e 151
465e92cf
JJ
152Exim version 4.72
153-----------------
154
453a6645
PP
155JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
156 $data_path, and $header_path variables; fixed documentation bugs and
157 typos
465e92cf 158
453a6645
PP
159JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
160 exipick to access non-standard spools, including the "frozen" queue
161 (Finput)
edae0343 162
9bd3e22c
NM
163NM/01 Bugzilla 965: Support mysql stored procedures.
164 Patch from Alain Williams
165
bb576ff7
NM
166NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
167
5a1a5845
NM
168NM/03 Bugzilla 955: Documentation fix for max_rcpts.
169 Patch from Andreas Metzler
170
981a9fad
NM
171NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
172 Patch from Kirill Miazine
173
7fc497ee
NM
174NM/05 Bugzilla 671: Added umask to procmail example.
175
1a41defa
JJ
176JJ/03 installed exipick 20100323.0, fixing doc bug
177
a466095c 178NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 179 directory. Notification and patch from Dan Rosenberg.
a466095c 180
94a6bd0b
NM
181TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
182
183TK/02 Improve log output when DKIM signing operation fails.
184
185MH/01 Treat the transport option dkim_domain as a colon separated
186 list, not as a single string, and sign the message with each element,
187 omitting multiple occurences of the same signer.
188
c1b141a8
NM
189NM/07 Null terminate DKIM strings, Null initialise DKIM variable
190 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 191
b26eacf1 192NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
193 Patch by Simon Arlott
194
179c5980 195PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 196 MBX locking. Notification from Dan Rosenberg.
179c5980 197
9bd3e22c 198
7c6d71af
NM
199Exim version 4.71
200-----------------
201
7d9f747b 202TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 203
f013fb92
NM
204NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
205
0eb8eedd
NM
206NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
207
663ee6d9
NM
208NM/03 Bugzilla 847: Enable DNSDB lookup by default.
209
177ebd9b
NM
210NM/04 Bugzilla 915: Flag broken perl installation during build.
211
7c6d71af 212
210f147e
NM
213Exim version 4.70
214-----------------
215
cdd3bb85 216TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 217 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
218
219TK/02 Write list of recipients to X-Envelope-Sender header when building
220 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 221 Hirsch).
cdd3bb85
TK
222
223TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
224 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 225 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
226
227TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
228 by Mark Daniel Reidel <mr@df.eu>.
229
210f147e
NM
230NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
231 When building exim an external PCRE library is now needed -
232 PCRE is a system library on the majority of modern systems.
233 See entry on PCRE_LIBS in EDITME file.
234
deafd5b3
NM
235NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
236 conversation. Added nologin parameter to request.
7d9f747b 237 Patch contributed by Kirill Miazine.
deafd5b3 238
089793a4
TF
239TF/01 Do not log submission mode rewrites if they do not change the address.
240
5f16ca82
TF
241TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
242
dae9d94e 243NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 244 log files in place. Contributed by Roberto Lima.
dae9d94e 245
7d9f747b 246NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 247
06864c44
TF
248TF/03 Bugzilla 615: When checking the local_parts router precondition
249 after a local_part_suffix or local_part_prefix option, Exim now
250 does not use the address's named list lookup cache, since this
251 contains cached lookups for the whole local part.
252
65a7d8c3 253NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 254 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 255
23510047 256TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 257
7d9f747b 258NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 259
7d8eec3a 260NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 261 Patch provided by Jan Srzednicki.
6c588e74 262
89dec7b6
TF
263TF/05 Leading white space used to be stripped from $spam_report which
264 wrecked the formatting. Now it is preserved.
5f28a6e8 265
a99de90c
TF
266TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
267 that they are available at delivery time.
268
e2803e40
TF
269TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
270
7199e1ee
TF
271TF/08 TLS error reporting now respects the incoming_interface and
272 incoming_port log selectors.
273
e276e04b
TF
274TF/09 Produce a more useful error message if an SMTP transport's hosts
275 setting expands to an empty string.
276
ce552449 277NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 278 Patch provided by Phil Pennock.
ce552449 279
e765a0f1 280NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 281 Patch provided by Richard Godbee.
e765a0f1 282
4f054c63 283NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 284 acl_smtp_notquit, added index entry.
4f054c63 285
7d9f747b
PP
286NM/09 Bugzilla 787: Potential buffer overflow in string_format.
287 Patch provided by Eugene Bujak.
24c929a2 288
7d9f747b
PP
289NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
290 accept(). Patch provided by Maxim Dounin.
cf73943b 291
b52bc06e 292NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 293 Patch provided by Phil Pennock.
b52bc06e 294
447de4b0
NM
295NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
296
4c69d561 297NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 298 Patch provided by Brad "anomie" Jorsch.
4c69d561 299
d5c39246 300NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 301 Patch provided by Dean Brooks.
9b989985 302
0b23848a
TK
303TK/05 Add native DKIM support (does not depend on external libraries).
304
8f3414a1 305NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 306 Patch provided by Graeme Fowler.
e2aacdfd 307
fb6f955d
NM
308NM/16 Bugzilla 851: Documentation example syntax fix.
309
310NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 311
7d9f747b
PP
312NM/18 Bugzilla 894: Fix issue with very long lines including comments in
313 lsearch.
dbb0bf41 314
7d9f747b
PP
315NM/19 Bugzilla 745: TLS version reporting.
316 Patch provided by Phil Pennock.
f3766eb5 317
7d9f747b
PP
318NM/20 Bugzilla 167: bool: condition support.
319 Patch provided by Phil Pennock.
36f12725 320
7d9f747b
PP
321NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
322 clients. Patch provided by Phil Pennock.
e6060e2c 323
7d9f747b
PP
324NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
325 Patch provided by Brad "anomie" Jorsch.
5eb690a1 326
7d9f747b
PP
327NM/23 Bugzilla 687: Fix misparses in eximstats.
328 Patch provided by Heiko Schlittermann.
d5c13d66 329
7d9f747b
PP
330NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
331 Patch provided by Heiko Schlittermann.
b2335c0b 332
7d9f747b 333NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 334 plus update to original patch.
f4cd9433 335
7d9f747b 336NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 337
7d9f747b
PP
338NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
339 Patch provided by David Brownlee.
8dc71ab3 340
7d9f747b 341NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 342
7d9f747b 343NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 344
7d9f747b 345NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 346
7d9f747b 347NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 348
17792b53 349NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 350 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 351
7d9f747b
PP
352NM/33 Bugzilla 898: Transport filter timeout fix.
353 Patch by Todd Rinaldo.
52383f8f 354
7d9f747b
PP
355NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
356 Patch by Serge Demonchaux.
5ca6d115 357
7d9f747b
PP
358NM/35 Bugzilla 39: Base64 decode bug fixes.
359 Patch by Jakob Hirsch.
baee9eee 360
7d9f747b 361NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 362
7d9f747b 363NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 364
7d9f747b 365NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 366
7d9f747b 367NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 368
deafd5b3 369
47db1125
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370Exim version 4.69
371-----------------
372
4b3504d0
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373TK/01 Add preliminary DKIM support. Currently requires a forked version of
374 ALT-N's libdkim that I have put here:
375 http://duncanthrax.net/exim-experimental/
376
377 Note to Michael Haardt: I had to rename some vars in sieve.c. They
378 were called 'true' and it seems that C99 defines that as a reserved
379 keyword to be used with 'bool' variable types. That means you could
380 not include C99-style headers which use bools without triggering
381 build errors in sieve.c.
382
81ea09ca
NM
383NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
384 as mailq or other aliases. Changed the --help handling significantly
385 to do whats expected. exim_usage() emits usage/help information.
386
f13cddcb
SC
387SC/01 Added the -bylocaldomain option to eximstats.
388
7d9f747b 389NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 390
7d9f747b 391NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 392
7d9f747b 393NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
394
395
eb4c0de6
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396Exim version 4.68
397-----------------
398
399PH/01 Another patch from the Sieve maintainer.
400
6a3bceb1
PH
401PH/02 When an IPv6 address is converted to a string for single-key lookup
402 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
403 dots are used instead of colons so that keys in lsearch files need not
404 contain colons. This was done some time before quoting was made available
405 in lsearch files. However, iplsearch files do require colons in IPv6 keys
406 (notated using the quote facility) so as to distinguish them from IPv4
407 keys. This meant that lookups for IP addresses in host lists did not work
408 for iplsearch lookups.
409
410 This has been fixed by arranging for IPv6 addresses to be expressed with
411 colons if the lookup type is iplsearch. This is not incompatible, because
412 previously such lookups could never work.
413
414 The situation is now rather anomolous, since one *can* have colons in
415 ordinary lsearch keys. However, making the change in all cases is
416 incompatible and would probably break a number of configurations.
417
2e30fa9d
TK
418TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
419 version.
420
0806a9c5
MH
421MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
422 conversion specification without a maximum field width, thereby enabling
423 a rogue spamd server to cause a buffer overflow. While nobody in their
424 right mind would setup Exim to query an untrusted spamd server, an
425 attacker that gains access to a server running spamd could potentially
426 exploit this vulnerability to run arbitrary code as the Exim user.
427
ae276964
TK
428TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
429 $primary_hostname instead of what libspf2 thinks the hosts name is.
430
0f2cbd1b
MH
431MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
432 a directory entry by the name of the lookup key. Previously, if a
433 symlink pointed to a non-existing file or a file in a directory that
434 Exim lacked permissions to read, a lookup for a key matching that
435 symlink would fail. Now it is enough that a matching directory entry
436 exists, symlink or not. (Bugzilla 503.)
437
2b85bce7
PH
438PH/03 The body_linecount and body_zerocount variables are now exported in the
439 local_scan API.
440
93655c46
PH
441PH/04 Added the $dnslist_matched variable.
442
6c512171
PH
443PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
444 This means they are set thereafter only if the connection becomes
445 encrypted.
446
447PH/06 Added the client_condition to authenticators so that some can be skipped
448 by clients under certain conditions.
449
aa6dc513
PH
450PH/07 The error message for a badly-placed control=no_multiline_responses left
451 "_responses" off the end of the name.
452
a96603a0
PH
453PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
454
8f240103
PH
455PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
456 (without spaces) instead of just copying the configuration text.
457
458PH/10 Added the /noupdate option to the ratelimit ACL condition.
459
d677b2f2
PH
460PH/11 Added $max_received_linelength.
461
d52120f2
PH
462PH/12 Added +ignore_defer and +include_defer to host lists.
463
64f2600a
PH
464PH/13 Installed PCRE version 7.2. This needed some changes because of the new
465 way in which PCRE > 7.0 is built.
466
8669f003
PH
467PH/14 Implemented queue_only_load_latch.
468
a4dc33a8
PH
469PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
470 MAIL command. The effect was to mangle the value on 64-bit systems.
471
d6a60c0f
PH
472PH/16 Another patch from the Sieve maintainer.
473
8f128379
PH
474PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
475
8932dffe
PH
476PH/18 If a system quota error occurred while trying to create the file for
477 a maildir delivery, the message "Mailbox is full" was not appended to the
478 bounce if the delivery eventually timed out. Change 4.67/27 below applied
479 only to a quota excession during the actual writing of the file.
d6a60c0f 480
ddea74fa 481PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
482 characters?) which causes problems in log lines. The DN values are now
483 passed through string_printing() before being added to log lines.
484
ddea74fa 485PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
486 and InterBase are left for another time.)
487
ddea74fa
PH
488PH/21 Added message_body_newlines option.
489
ce9f225c
PH
490PH/22 Guard against possible overflow in moan_check_errorcopy().
491
19897d52
PH
492PH/23 POSIX allows open() to be a macro; guard against that.
493
bc64a74d
PH
494PH/24 If the recipient of an error message contained an @ in the local part
495 (suitably quoted, of course), incorrect values were put in $domain and
496 $local_part during the evaluation of errors_copy.
497
eb4c0de6 498
b4ed4da0
PH
499Exim version 4.67
500-----------------
501
22ad45c9
MH
502MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
503 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
504 Jan Srzednicki.
505
b4ed4da0
PH
506PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
507 issue a MAIL command.
508
431b7361
PH
509PH/02 In an ACL statement such as
510
511 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
512
513 if a client was not listed at all, or was listed with a value other than
514 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
515 the condition was not true (as it should be), so access was not denied.
516 The bug was that the ! inversion was incorrectly passed on to the second
517 item. This has been fixed.
518
519PH/03 Added additional dnslists conditions == and =& which are different from
520 = and & when the dns lookup returns more than one IP address.
521
83da1223
PH
522PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
523 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
524
54fc8428
PH
525PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
526 FSYNC, which compiles an option called disable_fsync that allows for
527 bypassing fsync(). The documentation is heavily laced with warnings.
528
34c5e8dd
SC
529SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
530
bbe15da8
PH
531PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
532 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
533 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
534 including adding "make clean"; (3) Added -fPIC when compiling the test
535 dynamically loaded module, to get rid of a warning.
536
0e8a9471
MH
537MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
538 message fails, move_frozen_messages = true and ignore_bounce_errors_after
539 = 0s. The bug is otherwise harmless.
540
f0872424
PH
541PH/07 There was a bug in the dovecot authenticator such that the value of
542 $auth1 could be overwritten, and so not correctly preserved, after a
543 successful authentication. This usually meant that the value preserved by
544 the server_setid option was incorrect.
545
b01dd148
PH
546PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
547
6bf342e1
PH
548PH/09 Installed PCRE release 7.0.
549
273f34d0
PH
550PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
551 run for batched SMTP input. It is now run at the start of every message
552 in the batch. While fixing this I discovered that the process information
553 (output by running exiwhat) was not always getting set for -bs and -bS
554 input. This is fixed, and it now also says "batched" for BSMTP.
555
cf8b11a5
PH
556PH/11 Added control=no_pipelining.
557
41c7c167
PH
558PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
559 patch, slightly modified), and move the expansion of helo_data till after
560 the connection is made in the smtp transport (so it can use these
561 values).
562
9c57cbc0
PH
563PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
564
f3f065bb
PH
565PH/14 Added log_selector = +pid.
566
047bdd8c
PH
567PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
568
0ce9abe6
PH
569PH/16 Add ${if forany and ${if forall.
570
0e22dfd1
PH
571PH/17 Added dsn_from option to vary the From: line in DSNs.
572
4c590bd1
PH
573PH/18 Flush SMTP output before performing a callout, unless control =
574 no_callout_flush is set.
575
09945f1e
PH
576PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
577 was true (the default) a successful delivery failed to delete the retry
578 item, thus causing premature timeout of the address. The bug is now
579 fixed.
580
c51b8e75
PH
581PH/20 Added hosts_avoid_pipelining to the smtp transport.
582
e28326d8
PH
583PH/21 Long custom messages for fakedefer and fakereject are now split up
584 into multiline reponses in the same way that messages for "deny" and
585 other ACL rejections are.
586
75b1493f
PH
587PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
588 with slight modification.
589
7c5214ec
PH
590PH/23 Applied sieve patches from the maintainer "tracking the latest notify
591 draft, changing the syntax and factoring some duplicate code".
592
4311097e
PH
593PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
594 for deliveries of the second and subsequent messages over the same SMTP
595 connection.
596
29f89cad
PH
597PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
598 ${reduce, with only minor "tidies".
599
5e687460
SC
600SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
601
c3611384
PH
602PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
603 expansion side effects.
604
5a11a7b4
PH
605PH/27 When a message times out after an over-quota error from an Exim-imposed
606 quota, the bounce message says "mailbox is full". This message was not
607 being given when it was a system quota that was exceeded. It now should
608 be the same.
609
0e20aff9
MH
610MH/03 Made $recipients available in local_scan(). local_scan() already has
611 better access to the recipient list through recipients_list[], but
612 $recipients can be useful in postmaster-provided expansion strings.
613
ca86f471
PH
614PH/28 The $smtp_command and $smtp_command_argument variables were not correct
615 in the case of a MAIL command with additional options following the
616 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
617 were accidentally chopped off.
618
a14e5636
PH
619PH/29 SMTP synchronization checks are implemented when a command is read -
620 there is a check that no more input is waiting when there shouldn't be
621 any. However, for some commands, a delay in an ACL can mean that it is
622 some time before the response is written. In this time, more input might
623 arrive, invalidly. So now there are extra checks after an ACL has run for
624 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
625 pipelining has not been advertised.
626
ec95d1a6
PH
627PH/30 MH's patch to allow iscntrl() characters to be list separators.
628
42855d71
PH
629PH/31 Unlike :fail:, a custom message specified with :defer: was not being
630 returned in the SMTP response when smtp_return_error_details was false.
631 This has been fixed.
632
57c2c631
PH
633PH/32 Change the Dovecot authenticator to use read() and write() on the socket
634 instead of the C I/O that was originally supplied, because problems were
635 reported on Solaris.
636
58c01c94
PH
637PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
638 Exim which did not show up earlier: it was assuming that a call to
639 SSL_CTX_set_info_callback() might give an error value. In fact, there is
640 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
641 was a macro that became an assignment, so it seemed to work. This has
642 changed to a proper function call with a void return, hence the compile
643 error. Exim's code has been fixed.
644
dee5a20a
PH
645PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
646 cpus.
647
d2ee6114
PH
648PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
649
b2d5182b
PH
650PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
651
79749a79
PH
652PH/37 If a message is not accepted after it has had an id assigned (e.g.
653 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
654 "Completed" line in the log. When some messages of this type were
655 selected by exigrep, they were listed as "not completed". Others were
656 picked up by some special patterns. I have improved the selection
657 criteria to be more general.
79749a79 658
c456d9bb
PH
659PH/38 The host_find_failed option in the manualroute router can now be set
660 to "ignore", to completely ignore a host whose IP address cannot be
661 found. If all hosts are ignored, the behaviour is controlled by the new
662 host_all_ignored option.
663
cd9868ec
PH
664PH/39 In a list of hosts for manualroute, if one item (either because of multi-
665 homing or because of multiple MX records with /mx) generated more than
666 one IP address, and the following item turned out to be the local host,
667 all the secondary addresses of the first item were incorrectly removed
668 from the list, along with the local host and any following hosts (which
669 is what is supposed to happen).
670
ebeaf996
PH
671PH/40 When Exim receives a message, it writes the login name, uid, and gid of
672 whoever called Exim into the -H file. In the case of the daemon it was
673 behaving confusingly. When first started, it used values for whoever
674 started the daemon, but after a SIGHUP it used the Exim user (because it
675 calls itself on a restart). I have changed the code so that it now always
676 uses the Exim user.
677
2679d413
PH
678PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
679 message are rejected with the same error (e.g. no authentication or bad
680 sender address), and a DATA command is nevertheless sent (as can happen
681 with PIPELINING or a stupid MUA), the error message that was given to the
682 RCPT commands is included in the rejection of the DATA command. This is
683 intended to be helpful for MUAs that show only the final error to their
684 users.
685
84024b72
PH
686PH/42 Another patch from the Sieve maintainer.
687
8005d38e
SC
688SC/02 Eximstats - Differentiate between permanent and temporary rejects.
689 Eximstats - Fixed some broken HTML links and added missing column headers
690 (Jez Hancock).
691 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
692 columns for Rejects, Temp Rejects, Ham, and Spam rows.
693
3298c6c6
SC
694SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
695
a43a27c5
PH
696PH/43 Yet another patch from the Sieve maintainer.
697
58eb016e 698PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
699 the response to the final '.' that terminates a message, but only in the
700 case where the client has not sent further data following the '.'
701 (unfortunately, this is allowed). However, in many cases there won't be
702 any further data because there won't be any more messages to send. A call
703 to select() can be used: if it shows that the input is "ready", there is
704 either input waiting, or the socket has been closed. An attempt to read
705 the next input character can distinguish the two cases. Previously, Exim
58eb016e 706 would have sent an OK response which the client would never have see.
563b63fa
PH
707 This could lead to message repetition. This fix should cure that, at
708 least in a lot of common cases.
58eb016e 709
b43a74ea
PH
710PH/45 Do not advertise STARTTLS in response to HELP unless it would be
711 advertised in response to EHLO.
712
b4ed4da0 713
5dd1517f
PH
714Exim version 4.66
715-----------------
716
717PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
718 fixed by 4.65/MH/01 (is this a record?) are fixed:
719
720 (i) An empty string was always treated as zero by the numeric comparison
721 operators. This behaviour has been restored.
722
723 (ii) It is documented that the numeric comparison operators always treat
724 their arguments as decimal numbers. This was broken in that numbers
725 starting with 0 were being interpreted as octal.
726
727 While fixing these problems I realized that there was another issue that
728 hadn't been noticed. Values of message_size_limit (both the global option
729 and the transport option) were treated as octal if they started with 0.
730 The documentation was vague. These values are now always treated as
731 decimal, and I will make that clear in the documentation.
732
733
93cfa765
TK
734Exim version 4.65
735-----------------
736
737TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
738 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
739 versions. (#438)
740
d6066548
MH
741MH/01 Don't check that the operands of numeric comparison operators are
742 integers when their expansion is in "skipping" mode (fixes bug
743 introduced by 4.64-PH/07).
744
4362ff0d
PH
745PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
746 child addresses, Exim now panics and dies. Previously, because the count
747 is held in a short int, deliveries were likely to be lost. As such a
748 large number of recipients for a single message is ridiculous
749 (performance will be very, very poor), I have chosen to impose a limit
750 rather than extend the field.
751
93cfa765 752
944e9e9c
TF
753Exim version 4.64
754-----------------
aa41d2de 755
21d74bd9
TK
756TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
757 leftover -K file (the existence of which was triggered by #402).
758 While we were at it, introduced process PID as part of the -K
759 filename. This should rule out race conditions when creating
760 these files.
761
762TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
763 processing considerably. Previous code took too long for large mails,
764 triggering a timeout which in turn triggers #401.
765
766TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
767 in the DK code in transports.c. sendfile() is not really portable,
768 hence the _LINUX specificness.
944e9e9c
TF
769
770TF/01 In the add_headers option to the mail command in an Exim filter,
771 there was a bug that Exim would claim a syntax error in any
772 header after the first one which had an odd number of characters
773 in the field name.
774
2b1c6e3a
PH
775PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
776 callout verification, Exim cached a "reject" for the entire domain. This
777 is correct for most verifications, but it is not correct for a recipient
778 verification with use_sender or use_postmaster set, because in that case
779 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
780 case of MAIL FROM:<> rejection from other early rejections (e.g.
781 rejection of HELO). When verifying a recipient using a non-null MAIL
782 address, the cache is ignored if it shows MAIL FROM:<> rejection.
783 Whatever the result of the callout, the value of the domain cache is
784 left unchanged (for any other kind of callout, getting as far as trying
785 RCPT means that the domain itself is ok).
786
1f872c80
PH
787PH/02 Tidied a number of unused variable and signed/unsigned warnings that
788 gcc 4.1.1 threw up.
789
790PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
791 manifest itself as EPIPE rather than ECONNECT. When tidying away a
792 session, the daemon ignores ECONNECT errors and logs others; it now
793 ignores EPIPE as well.
794
d203e649
PH
795PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
796 (quoted-printable decoding).
797
cc2ed8f7 798PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 799 later the small subsequent patch to fix an introduced bug.
f951fd57 800
ddfcd446
PH
801PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
802
d45b1de8
PH
803PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
804
805PH/08 An error is now given if message_size_limit is specified negative.
806
38a0a95f 807PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 808 to be given (somewhat) arbitrary names.
38a0a95f 809
a2405d83
JJ
810JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
811 in 4.64-PH/09.
812
813JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
814 miscellaneous code fixes
815
6ea85e9a
PH
816PH/10 Added the log_reject_target ACL modifier to specify where to log
817 rejections.
818
26da7e20
PH
819PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
820 hostname. This is wrong, because it relates to the incoming message (and
821 probably the interface on which it is arriving) and not to the outgoing
822 callout (which could be using a different interface). This has been
823 changed to use the value of the helo_data option from the smtp transport
824 instead - this is what is used when a message is actually being sent. If
825 there is no remote transport (possible with a router that sets up host
826 addresses), $smtp_active_hostname is used.
6ea85e9a 827
14aa5a05 828PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 829 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
830 (a) The code assumed that strncpy() returns a negative number on buffer
831 overflow, which isn't the case. Replaced with Exim's string_format()
832 function.
833 (b) There were several signed/unsigned issues. I just did the minimum
834 hacking in of casts. There is scope for a larger refactoring.
835 (c) The code used strcasecmp() which is not a standard C function.
836 Replaced with Exim's strcmpic() function.
837 (d) The code set only $1; it now sets $auth1 as well.
838 (e) A simple test gave the error "authentication client didn't specify
839 service in request". It would seem that Dovecot has changed its
840 interface. Fortunately there's a specification; I followed it and
841 changed what the client sends and it appears to be working now.
842
ff75a1f7
PH
843PH/13 Added $message_headers_raw to provide the headers without RFC 2047
844 decoding.
845
e6f6568e
PH
846PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
847 address A is aliased to B and C, where B exists and C does not. Without
848 -v the output is "A verified" because verification stops after a
849 successful redirection if more than one address is generated. However,
850 with -v the child addresses are also verified. Exim was outputting "A
851 failed to verify" and then showing the successful verification for C,
852 with its parentage. It now outputs "B failed to verify", showing B's
853 parentage before showing the successful verification of C.
854
d6f6e0dc
PH
855PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
856 look up a TXT record in a specific list after matching in a combined
857 list.
858
322050c2
PH
859PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
860 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
861 they consult the DNS. I had assumed they would set it the way they
862 wanted; and indeed my experiments on Linux seem to show that in some
863 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
864 To be on the safe side, however, I have now made the interface to
865 host_find_byname() similar to host_find_bydns(), with an argument
866 containing the DNS resolver options. The host_find_byname() function now
867 sets these options at its start, just as host_find_bydns() does. The smtp
868 transport options dns_qualify_single and dns_search_parents are passed to
869 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
870 of host_find_byname() use the default settings of RES_DEFNAMES
871 (qualify_single) but not RES_DNSRCH (search_parents).
872
08955dd3
PH
873PH/17 Applied (a modified version of) Nico Erfurth's patch to make
874 spool_read_header() do less string testing, by means of a preliminary
875 switch on the second character of optional "-foo" lines. (This is
876 overdue, caused by the large number of possibilities that now exist.
877 Originally there were few.) While I was there, I also converted the
878 str(n)cmp tests so they don't re-test the leading "-" and the first
879 character, in the hope this might squeeze out yet more improvement.
880
1eccaa59
PH
881PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
882 flag allowing group syntax was set by the header_syntax check but not
883 turned off, possible causing trouble later; (2) The flag was not being
884 set at all for the header_verify test, causing "group"-style headers to
885 be rejected. I have now set it in this case, and also caused header_
886 verify to ignore an empty address taken from a group. While doing this, I
887 came across some other cases where the code for allowing group syntax
888 while scanning a header line wasn't quite right (mostly, not resetting
889 the flag correctly in the right place). These bugs could have caused
890 trouble for malformed header lines. I hope it is now all correct.
891
602e59e5
PH
892PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
893 with the "reply" argument non-NULL. The code, however (which originally
894 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
895 but it didn't always do it. This confused somebody who was copying the
896 code for some other use. I have removed all the tests.
897
411ef850
PH
898PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
899 feature that was used to support insecure browsers during the U.S. crypto
900 embargo. It requires special client support, and Exim is probably the
901 only MTA that supported it -- and would never use it because real RSA is
902 always available. This code has been removed, because it had the bad
903 effect of slowing Exim down by computing (never used) parameters for the
904 RSA_EXPORT functionality.
905
7befa435
PH
906PH/21 On the advice of Timo Sirainen, added a check to the dovecot
907 authenticator to fail if there's a tab character in the incoming data
908 (there should never be unless someone is messing about, as it's supposed
909 to be base64-encoded). Also added, on Timo's advice, the "secured" option
910 if the connection is using TLS or if the remote IP is the same as the
911 local IP, and the "valid-client-cert option" if a client certificate has
912 been verified.
913
48da4259 914PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
915 authenticators. This can be used for authorization after authentication
916 succeeds. (In the case of plaintext, it servers for both authentication
917 and authorization.)
918
48da4259
PH
919PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
920 if any retry times were supplied.
921
d1d5595c
PH
922PH/24 Exim crashed if verify=helo was activated during an incoming -bs
923 connection, where there is no client IP address to check. In this
924 situation, the verify now always succeeds.
925
0ef732d9
PH
926PH/25 Applied John Jetmore's -Mset patch.
927
328895cc
PH
928PH/26 Added -bem to be like -Mset, but loading a message from a file.
929
fd700877
PH
930PH/27 In a string expansion for a processed (not raw) header when multiple
931 headers of the same name were present, leading whitespace was being
932 removed from all of them, but trailing whitespace was being removed only
933 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
934 before concatenation. Completely empty headers in a concatenation (as
935 before) are ignored.
fd700877 936
8dce1a6f
PH
937PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
938 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
939
17af4a17
PH
940PH/29 [Removed. This was a change that I later backed out, and forgot to
941 correct the ChangeLog entry (that I had efficiently created) before
942 committing the later change.]
f6c332bd
PH
943
944PH/30 Exim was sometimes attempting to deliver messages that had suffered
945 address errors (4xx response to RCPT) over the same connection as other
946 messages routed to the same hosts. Such deliveries are always "forced",
947 so retry times are not inspected. This resulted in far too many retries
948 for the affected addresses. The effect occurred only when there were more
949 hosts than the hosts_max_try setting in the smtp transport when it had
950 the 4xx errors. Those hosts that it had tried were not added to the list
951 of hosts for which the message was waiting, so if all were tried, there
952 was no problem. Two fixes have been applied:
953
954 (i) If there are any address or message errors in an SMTP delivery, none
955 of the hosts (tried or untried) are now added to the list of hosts
956 for which the message is waiting, so the message should not be a
957 candidate for sending over the same connection that was used for a
958 successful delivery of some other message. This seems entirely
959 reasonable: after all the message is NOT "waiting for some host".
960 This is so "obvious" that I'm not sure why it wasn't done
961 previously. Hope I haven't missed anything, but it can't do any
962 harm, as the worst effect is to miss an optimization.
963
964 (ii) If, despite (i), such a delivery is accidentally attempted, the
965 routing retry time is respected, so at least it doesn't keep
966 hammering the server.
967
c1114884
PH
968PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
969 in ${readsocket because some servers need this prod.
970
7a0743eb
PH
971PH/32 Added some extra debug output when updating a wait-xxx database.
972
0d85fa3f
PH
973PH/33 The hint "could be header name not terminated by colon", which has been
974 given for certain expansion errors for a long time, was not being given
975 for the ${if def:h_colon_omitted{... case.
976
1bf43b78
PH
977PH/34 The spec says: "With one important exception, whenever a domain list is
978 being scanned, $domain contains the subject domain." There was at least
979 one case where this was not true.
980
520de300
PH
981PH/35 The error "getsockname() failed: connection reset by peer" was being
982 written to the panic log as well as the main log, but it isn't really
983 panic-worthy as it just means the connection died rather early on. I have
984 removed the panic log writing for the ECONNRESET error when getsockname()
985 fails.
986
48c7f9e2
PH
987PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
988 runs only) independently of the message's sender address. This meant
989 that, if the 4xx error was in fact related to the sender, a different
990 message to the same recipient with a different sender could confuse
991 things. In particualar, this can happen when sending to a greylisting
992 server, but other circumstances could also provoke similar problems.
993 I have changed the default so that the retry time for these errors is now
994 based a combination of the sender and recipient addresses. This change
995 can be overridden by setting address_retry_include_sender=false in the
996 smtp transport.
997
99ea1c86
PH
998PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
999 remote server are returned as part of bounce messages. This was not
1000 happening for LMTP over a pipe (the lmtp transport), but now it is the
1001 same for both kinds of LMTP.
1002
a2042e78
PH
1003PH/38 Despite being documented as not happening, Exim was rewriting addresses
1004 in header lines that were in fact CNAMEs. This is no longer the case.
1005
4fbcfc2e
PH
1006PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1007 and queue runs started by the daemon processed all messages. This has
1008 been fixed so that -R and -S can now usefully be given with -q<time>.
1009
aa41d2de
PH
1010PH/40 Import PCRE release 6.7 (fixes some bugs).
1011
af561417
PH
1012PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1013
3cc66b45
PH
1014PH/42 Give an error if -q is specified more than once.
1015
194cc0e4
PH
1016PH/43 Renamed the variables $interface_address and $interface_port as
1017 $received_ip_address and $received_port, to make it clear that these
1018 values apply to message reception, and not to the outgoing interface when
1019 a message is delivered. (The old names remain recognized, of course.)
1020
a401ddaa
PH
1021PH/44 There was no timeout on the connect() call when using a Unix domain
1022 socket in the ${readsocket expansion. There now is.
1023
4e88a19f
PH
1024PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1025 be meaningful with "accept".
1026
d7d7b289
SC
1027SC/01 Eximstats V1.43
1028 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1029
1030SC/02 Eximstats V1.44
1031 Use a glob alias rather than an array ref in the generated
1032 parser. This improves both readability and performance.
1033
1034SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1035 Collect SpamAssassin and rejection statistics.
1036 Don't display local sender or destination tables unless
1037 there is data to show.
1038 Added average volumes into the top table text output.
1039
1040SC/04 Eximstats V1.46
1041 Collect data on the number of addresses (recipients)
1042 as well as the number of messages.
1043
1044SC/05 Eximstats V1.47
1045 Added 'Message too big' to the list of mail rejection
1046 reasons (thanks to Marco Gaiarin).
1047
1048SC/06 Eximstats V1.48
1049 Mainlog lines which have GMT offsets and are too short to
1050 have a flag are now skipped.
1051
1052SC/07 Eximstats V1.49 (Alain Williams)
1053 Added the -emptyok flag.
1054
1055SC/08 Eximstats V1.50
1056 Fixes for obtaining the IP address from reject messages.
1057
0ea2a468
JJ
1058JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1059 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1060 whitesspace changes from 4.64-PH/27
1061
1062JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1063 match 4.64-PH/13
1064
1065JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1066 are found, allow negative numbers in numeric criteria)
1067
1068JJ/06 exipick.20061117.2, added new $message_body_missing variable
1069
1070JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1071 to match changes made in 4.64-PH/43
1072
8a10f5a4
PH
1073PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1074
30e18802
PH
1075PH/47 Put in an explicit test for a DNS lookup of an address record where the
1076 "domain" is actually an IP address, and force a failure. This locks out
1077 those revolvers/nameservers that support "A-for-A" lookups, in
1078 contravention of the specifications.
1079
55728a4f
PH
1080PH/48 When a host name was looked up from an IP address, and the subsequent
1081 forward lookup of the name timed out, the host name was left in
1082 $sender_host_name, contrary to the specification.
d7d7b289 1083
d7837193
PH
1084PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1085 restricted to single-key lookups, Exim was not diagnosing an error if
1086 * or *@ was used with a query-style lookup.
1087
87054a31
PH
1088PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1089
ea2c01d2
MH
1090MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1091 long ago, but noone interested enough thought of it. Let's just say that
1092 the "1.1" means that there are some new functions that weren't there at
1093 some point in the past.
1094
e4fa6968
PH
1095PH/51 Error processing for expansion failure of helo_data from an smtp
1096 transport during callout processing was broken.
1097
56f5d9bd
PH
1098PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1099 tested/used via the -bh/-bhc/-bs options.
1100
922e1c28
PH
1101PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1102 bug, fixed in subsequent PCRE releases).
1103
21eb6e72
PH
1104PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1105 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1106
a0540757
PH
1107PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1108
944e9e9c 1109
478be7b0
SC
1110Exim version 4.63
1111-----------------
1112
1113SC/01 Use a glob alias rather than an array ref in eximstats generated
1114 parser. This improves both readability and performance.
1115
1116SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1117 Don't display local sender or destination tables in eximstats unless
1118 there is data to show.
1119 Added average volumes into the eximstats top table text output.
1120
1121SC/03 Collect data on the number of addresses (recipients) as well
1122 as the number of messages in eximstats.
1123
2b965a65
TF
1124TF/01 Correct an error in the documentation for the redirect router. Exim
1125 does (usually) call initgroups() when daemonizing.
478be7b0 1126
45b91596
PH
1127TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1128 with consistent privilege compared to when running as a daemon.
478be7b0 1129
c59f5781
TF
1130TF/03 Note in the spec that $authenticated_id is not set for local
1131 submissions from trusted users.
1132
90fc3069
TF
1133TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1134 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1135
6083aca0
TF
1136TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1137 by adding some example configuration directives to the default
1138 configuration file. A little bit of work is required to uncomment the
1139 directives and define how usernames and passwords are checked, but
1140 there is now a framework to start from.
1141
765b530f
PH
1142PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1143 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1144 without this. I don't know how relevant this is to other LDAP libraries.
1145
4e167a8c
PH
1146PH/02 Add the verb name to the "unknown ACL verb" error.
1147
4608d683
PH
1148PH/03 Magnus Holmgren's patch for filter_prepend_home.
1149
b8dc3e4a
PH
1150PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1151
5418e93b
PH
1152PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1153 directory not expanded when it should be if an expanded home directory
1154 was set for the address (which is overridden by the transport).
1155
b4a9bda2
PH
1156PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1157 libradius.
1158
45b91596
PH
1159PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1160 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1161 because it is too late at that time, and has no effect.
1162
5547e2c5
PH
1163PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1164 security issue with \' (bugzilla #107). I could not use the
1165 PQescapeStringConn() function, because it needs a PGconn value as one of
1166 its arguments.
1167
dbcef0ea
PH
1168PH/08 When testing addresses using -bt, indicate those final addresses that
1169 are duplicates that would not cause an additional delivery. At least one
1170 person was confused, thinking that -bt output corresponded to deliveries.
1171 (Suppressing duplicates isn't a good idea as you lose the information
1172 about possibly different redirections that led to the duplicates.)
1173
25257489
PH
1174PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1175 systems where poll() doesn't work, in particular OS X.
1176
c816d124
PH
1177PH/10 Added more information to debugging output for retry time not reached.
1178
a9ccd69a
PH
1179PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1180 operations in malware.c.
1181
75fa1910
PH
1182PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1183 signatures.
1184
a7d7aa58
PH
1185PH/13 If write_rejectlog was set false when logging was sent to syslog with
1186 syslog_duplication set false, log lines that would normally be written
1187 both the the main log and to the reject log were not written to syslog at
1188 all.
1189
42119b09
PH
1190PH/14 In the default configuration, change the use of "message" in ACL warn
1191 statements to "add_header".
1192
41609df5
PH
1193PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1194 not followed by a command (e.g. "seen endif").
1195
a5bd321b
PH
1196PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1197 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1198 latter.
1199
e85a7ad5 1200PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1201 so that it is now:
1202
e85a7ad5
PH
1203 ${if or { \
1204 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1205 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1206 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1207 }{no}{yes}}
1208
e85a7ad5
PH
1209 The Auto-Submitted: and various List- headers are standardised, whereas I
1210 don't think Precedence: ever was.
5dff5817 1211
d8fe1c03
PH
1212PH/18 Refactored debugging code in route_finduser() to show more information,
1213 in particular, the error code if getpwnam() issues one.
1214
16282d2b
PH
1215PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1216 This is apparently needed in addition to the PH/07 change above to avoid
1217 any possible encoding problems.
1218
35d40a98
PH
1219PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1220 but not after initializing Perl.
1221
034d99ab
PH
1222PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1223 output them only if debugging. By default they are written stderr,
1224 apparently, which is not desirable.
1225
6ec97b1b
PH
1226PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1227 queries.
1228
e22ca4ac
JJ
1229JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1230 --not options
1231
1232JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1233
33d73e3b
PH
1234PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1235 authenticated or an ident call has been made. Suppress the default
1236 values for $authenticated_id and $authenticated_sender (but permit -oMai
1237 and -oMas) when testing with -bh.
1238
9ecb03f3
PH
1239PH/24 Re-jigged the order of the tests in the default configuration so that the
1240 tests for valid domains and recipients precede the DNS black list and CSA
1241 tests, on the grounds that those ones are more expensive.
1242
084efe8d
PH
1243PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1244 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1245 This bug exists in every version of Exim that I still have, right back to
1246 0.12.
1247
366fc9f0
PH
1248PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1249 However, an attempt to turn on case-sensitivity in a regex key by
1250 including (?-i) didn't work because the subject string was already
1251 lowercased, and the effects were non-intuitive. It turns out that a
1252 one-line patch can be used to allow (?-i) to work as expected.
1253
c59f5781 1254
c887c79e
TF
1255Exim version 4.62
1256-----------------
1257
1258TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1259 other effects) broke the use of negated acl sub-conditions.
1260
1cce3af8
PH
1261PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1262 patch).
1263
afb3eaaf
PH
1264PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1265 "Deny" causes Exim to reject the incoming connection with a 554 error.
1266 Unfortunately, if there is a major crisis, such as a disk failure,
1267 tcp-wrappers gives "deny", whereas what one would like would be some
1268 kind of temporary error. A kludge has been added to help with this.
1269 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1270 554 error is used if errno is still zero or contains ENOENT (which occurs
1271 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1272 451 error is used.
1273
e173618b
PH
1274PH/03 Add -lutil to the default FreeBSD LIBS setting.
1275
dd16e114
PH
1276PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1277 errors. Otherwise a message that provokes a temporary error (when other
1278 messages do not) can cause a whole host to time out.
1279
f7fd3850
PH
1280PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1281 addresses were routed directly to files or pipes from a redirect router.
1282 File deliveries just didn't batch; pipe deliveries might have suffered
1283 odd errors.
1284
d87df92c
PH
1285PH/06 A failure to get a lock for a hints database would erroneously always say
1286 "Failed to get write lock", even when it was really a read lock.
1287
7e9f683d
PH
1288PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1289 of 0600. This has been changed to use the value of the lockfile_mode
1290 option (which defaults to 0600).
1291
bfad5236
PH
1292PH/08 Applied small patch from the Sieve maintainer.
1293
01c490df
PH
1294PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1295 folder from quota calculations, a direct delivery into this folder messed
1296 up the contents of the maildirsize file. This was because the regex was
1297 used only to exclude .Trash (or whatever) when the size of the mailbox
1298 was calculated. There was no check that a delivery was happening into an
1299 excluded directory. This bug has been fixed by ignoring all quota
1300 processing for deliveries into excluded directories.
1301
d6629cdc
PH
1302PH/10 Added the maildirfolder_create_regex option to appendfile.
1303
1cce3af8 1304
214e2000
PH
1305Exim version 4.61
1306-----------------
1307
1308PH/01 The code for finding all the local interface addresses on a FreeBSD
1309 system running IPv6 was broken. This may well have applied to all BSD
1310 systems, as well as to others that have similar system calls. The broken
1311 code found IPv4 interfaces correctly, but gave incorrect values for the
1312 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1313 that it would not match correctly against @[] and not recognize the IPv6
1314 addresses as local.
1315
f9daeae0
PH
1316PH/02 The ipliteral router was not recognizing addresses of the form user@
1317 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1318
7e66e54d
PH
1319PH/03 Added disable_ipv6.
1320
c8ea1597
PH
1321PH/04 Changed $reply_address to use the raw form of the headers instead of the
1322 decoded form, because it is most often used to construct To: headers
1323 lines in autoreplies, and the decoded form may well be syntactically
1324 invalid. However, $reply_address has leading white space removed, and all
1325 newlines turned into spaces so that the autoreply transport does not
1326 grumble.
1327
911f6fde
PH
1328PH/05 If group was specified without a user on a router, and no group or user
1329 was specified on a transport, the group from the router was ignored.
1330
47ca6d6c
PH
1331PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1332 for visible compile-time settings that can be used to change these
1333 numbers, for those that want even more. Backwards compatibility with old
1334 spool files has been maintained. However, going back to a previous Exim
1335 release will lost any variables that are in spool files.
1336
ed0e9820
PH
1337PH/07 Two small changes when running in the test harness: increase delay when
1338 passing a TCP/IP connection to a new process, in case the original
1339 process has to generate a bounce, and remove special handling of
1340 127.0.0.2 (sic), which is no longer necessary.
1341
eff37e47
PH
1342PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1343 be the same on different OS.
1344
1921d2ea
PH
1345PH/09 Moved a debug statement in filter processing to avoid a race problem when
1346 testing.
1347
b3f69ca8
JJ
1348JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1349 whether --show-vars was specified or not
1350
1351JJ/02 exipick: Added support for new ACL variable spool format introduced
1352 in 4.61-PH/06
1353
424a1c63
PH
1354PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1355 syntactically invalid From: or Reply-to: line, and a filter used this to
1356 generate an autoreply, and therefore failed to obtain an address for the
1357 autoreply, Exim could try to deliver to a non-existent relative file
1358 name, causing unrelated and misleading errors. What now happens is that
1359 it logs this as a hard delivery error, but does not attempt to create a
1360 bounce message.
1361
7a100415
PH
1362PH/11 The exinext utility has a -C option for testing purposes, but although
1363 the given file was scanned by exinext itself; it wasn't being passed on
1364 when Exim was called.
1365
19b9dc85
PH
1366PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1367 an end-of-file indication when reading a command response.
1368
309bd837
PH
1369PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1370 compiled. In many other places in Exim, IPv6 addresses are always
1371 recognized, so I have changed this. It also means that IPv4 domain
1372 literals of the form [IPV4:n.n.n.n] are now always recognized.
1373
59e82a2a
PH
1374PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1375 used if the router is not running as root, for example, when verifying at
1376 ACL time, or when using -bh. The debugging output from this situation was
1377 non-existent - all you got was a failure to exec. I have made two
1378 changes:
1379
1380 (a) Failures to set uid/gid, the current directory, or a process leader
1381 in a subprocess such as that created by queryprogram now generate
1382 suitable debugging ouput when -d is set.
1383
1384 (b) The queryprogram router detects when it is not running as root,
1385 outputs suitable debugging information if -d is set, and then runs
1386 the subprocess without attempting to change uid/gid.
1387
9edc04ce
PH
1388PH/15 Minor change to Makefile for building test_host (undocumented testing
1389 feature).
1390
1349e1e5
PH
1391PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1392 additional section of a DNS packet that returns MX or SRV records.
1393 Instead, it always explicitly searches for A/AAAA records. This avoids
1394 major problems that occur when a DNS server includes only records of one
1395 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1396 fixed another bug: if SRV records were looked up and the corresponding
1397 address records were *not* found in the additional section, the port
1398 values from the SRV records were lost.
1399
ea49d0e1
PH
1400PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1401 using the correct key (the original address) when searching the retry
1402 rules in order to find which one to use for generating the retry hint.
1403
064a94c9
PH
1404PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1405 adding the default one. Similarly, if it contains a Reply-To: header, the
1406 errors_reply_to option, if set, is not used.
1407
727071f8
PH
1408PH/19 When calculating a retry time, Exim used to measure the "time since
1409 failure" by looking at the "first failed" field in the retry record. Now
1410 it does not use this if it is later than than the arrival time of the
1411 message. Instead it uses the arrival time. This makes for better
1412 behaviour in cases where some deliveries succeed, thus re-setting the
1413 "first failed" field. An example is a quota failure for a huge message
1414 when small messages continue to be delivered. Without this change, the
1415 "time since failure" will always be short, possible causing more frequent
1416 delivery attempts for the huge message than are intended.
dd16e114 1417 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1418
f78eb7c6
PH
1419PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1420 $1, $2, $3) because the numerical variables can be reset during some
1421 expansion items (e.g. "match"), thereby losing the authentication data.
1422
21c28500
PH
1423PH/21 Make -bV show the size of off_t variables so that the test suite can
1424 decide whether to run tests for quotas > 2G.
1425
1426PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1427 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1428 filecount value is greater than 2G or if a quota value is greater than 2G
1429 on a system where the size of off_t is not greater than 4, a panic error
1430 is given.
1431
1688f43b
PH
1432PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1433 never match. The debug and -bh output now contains an explicit error
1434 message indicating a malformed IPv4 address or mask.
1435
1436PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1437 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1438 PH/23 above applies.
1439
9675b384
PH
1440PH/25 Do not write to syslog when running in the test harness. The only
1441 occasion when this arises is a failure to open the main or panic logs
1442 (for which there is an explicit test).
1443
6a3f1455
PH
1444PH/26 Added the /no_tell option to "control=freeze".
1445
dac79d3e
PH
1446PH/27 If a host name lookup failed very early in a connection, for example, if
1447 the IP address matched host_lookup and the reverse lookup yielded a name
1448 that did not have a forward lookup, an error message of the form "no IP
1449 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1450 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1451
5977a0b3
PH
1452PH/28 An enabling patch from MH: add new function child_open_exim2() which
1453 allows the sender and the authenticated sender to be set when
1454 submitting a message from within Exim. Since child_open_exim() is
1455 documented for local_scan(), the new function should be too.
1456
c91535f3
PH
1457PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1458 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1459 results in an empty string is now treated as unset.
1460
0d46a8c8
PH
1461PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1462
278c6e6c
PH
1463PH/31 Added sender_verify_fail logging option.
1464
2cbb4081
PH
1465PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1466 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1467 tidied the source and removed it altogether.
1468
3eef829e
PH
1469PH/33 When a queue run was abandoned because the load average was too high, a
1470 log line was always written; now it is written only if the queue_run log
1471 selector is set. In addition, the log line for abandonment now contains
1472 information about the queue run such as the pid. This is always present
1473 in "start" and "stop" lines but was omitted from the "abandon" line.
1474
1ab95fa6
PH
1475PH/34 Omit spaces between a header name and the colon in the error message that
1476 is given when verify = headers_syntax fails (if there are lots of them,
1477 the message gets confusing).
1478
230205fc
PH
1479PH/35 Change the default for dns_check_names_pattern to allow slashes within
1480 names, as there are now some PTR records that contain slashes. This check
1481 is only to protect against broken name servers that fall over on strange
1482 characters, so the fact that it applies to all lookups doesn't matter.
1483
75e0e026
PH
1484PH/36 Now that the new test suite is complete, we can remove some of the
1485 special code in Exim that was needed for the old test suite. For example,
1486 sorting DNS records because real resolvers return them in an arbitrary
1487 order. The new test suite's fake resolver always returns records in the
1488 same order.
1489
1490PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1491 bounces) except when queue_only is set, to avoid logging races between
1492 the different processes.
1493
145396a6
PH
1494PH/38 Panic-die if .include specifies a non-absolute path.
1495
3cd34f13
PH
1496PH/39 A tweak to the "H" retry rule from its user.
1497
11121d3d
JJ
1498JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1499 a label. They prevented compilation on older perls.
1500
1501JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1502 a warning to be raised on newish perls.
1503
1504JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1505 on queue. Changes to match documented behaviour of showing count of
1506 messages matching specified criteria.
1507
8def5aaf
PH
1508PH/40 Changed the default ident timeout from 30s to 5s.
1509
929ba01c
PH
1510PH/41 Added support for the use of login_cap features, on those BSD systems
1511 that have them, for controlling the resources used by pipe deliveries.
1512
2632889e
PH
1513PH/42 The content-scanning code uses fopen() to create files in which to put
1514 message data. Previously it was not paying any attention to the mode of
1515 the files. Exim runs with umask(0) because the rest of the code creates
1516 files with open(), and sets the required mode explicitly. Thus, these
1517 files were ending up world-writeable. This was not a big issue, because,
1518 being within the spool directory, they were not world-accessible. I have
1519 created a function called modefopen, which takes an additional mode
1520 argument. It sets umask(777), creates the file, chmods it to the required
1521 mode, then resets the umask. All the relevant calls to fopen() in the
1522 content scanning code have been changed to use this function.
1523
944a9c55
PH
1524PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1525 to 24 hours. This avoids potential overflow problems when processing G
1526 and H retry rules. I suspect nobody ever tinkers with this value.
1527
4a23603b
PH
1528PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1529
4730f942
PH
1530PH/45 When the plaintext authenticator is running as a client, the server's
1531 challenges are checked to ensure they are valid base64 strings. By
1532 default, the authentication attempt is cancelled if an invalid string is
1533 received. Setting client_ignore_invalid_base64 true ignores these errors.
1534 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1535 they are received. Thus, the responses can be made to depend on the
1536 challenges. If an invalid string is ignored, an empty string is placed in
1537 the variable.
1538
30dba1e6
PH
1539PH/46 Messages that are created by the autoreply transport now contains a
1540 References: header, in accordance with RFCs 2822 and 3834.
1541
382afc6b
PH
1542PH/47 Added authenticated_sender_force to the smtp transport.
1543
a86229cf
PH
1544PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1545
50c99ba6
PH
1546PH/49 Installed latest patch from the Sieve maintainer.
1547
d35e429d
PH
1548PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1549 was also set, the appendfile transport was unnecessarily scanning a
1550 directory of message files (e.g. for maildir delivery) to find the count
1551 of files (along with the size), even though it did not need this
1552 information. It now does the scan only if it needs to find either the
1553 size of the count of files.
1554
f90d018c
PH
1555PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1556
75def545
PH
1557PH/52 Two bugs concerned with error handling when the smtp transport is
1558 used in LMTP mode:
1559
1560 (i) Exim was not creating retry information for temporary errors given
1561 for individual recipients after the DATA command when the smtp transport
1562 was used in LMTP mode. This meant that they could be retried too
1563 frequently, and not timed out correctly.
1564
1565 (ii) Exim was setting the flag that allows error details to be returned
1566 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1567 recipients that were returned after the DATA command.
1568
1569PH/53 This is related to PH/52, but is more general: for any failing address,
1570 when detailed error information was permitted to be returned to the
1571 sender, but the error was temporary, then after the final timeout, only
1572 "retry timeout exceeded" was returned. Now it returns the full error as
1573 well as "retry timeout exceeded".
1574
c46782ef
PH
1575PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1576 do this, and (what is worse) MTAs that accept it.
1577
71fafd95
PH
1578PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1579 will now be deprecated.
1580
2c5db4fd
PH
1581PH/56 New os.c-cygwin from the Cygwin maintainer.
1582
9cf6b11a
JJ
1583JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1584 formats (previously only available in exim formats via -bpr, -bpru,
1585 and -bpra. Now also available in native and exiqgrep formats)
1586
1587JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1588 with very large, slow to parse queues
1589
1590JJ/08 exipick: added ! as generic prefix to negate any criteria format
1591
1592JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1593
898d150f
PH
1594PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1595 responses to authentication challenges, though it was showing the
1596 challenges; (ii) I've removed the CR characters from the debug output for
1597 SMTP output lines.
1598
46218253
PH
1599PH/58 Allow for the insertion of a newline as well as a space when a string
1600 is turned into more than one encoded-word during RFC 2047 encoding. The
1601 Sieve code now uses this.
1602
e97957bc
PH
1603PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1604 data_4xx, lost_connection, tls_required.
1605
81e509d7
PH
1606PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1607 message was being sent as an SMTP response.
1608
3d240ff7
PH
1609PH/61 Add -l and -k options to exicyclog.
1610
b37c4101
PH
1611PH/62 When verifying, if an address was redirected to one new address, so that
1612 verification continued, and the new address failed or deferred after
1613 having set something in $address_data, the value of $address_data was not
1614 passed back to the ACL. This was different to the case when no
1615 redirection occurred. The value is now passed back in both cases.
1616
79378e0f
PH
1617PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1618 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1619 use login_cap.h, so on its own it isn't the distinguishing feature. The
1620 new name refers directly to the setclassresources() function.
1621
e49c7bb4
PH
1622PH/65 Added configuration files for NetBSD3.
1623
d114ec46
PH
1624PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1625
f3d7df6c
PH
1626PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1627 is preferred over IPv4.
1628
715ab376
PH
1629PH/68 The bounce_return_message and bounce_return_body options were not being
1630 honoured for bounces generated during the reception of non-SMTP messages.
1631 In particular, this applied to messages rejected by the ACL. This bug has
1632 been fixed. However, if bounce_return_message is true and bounce_return_
1633 body is false, the headers that are returned for a non-SMTP message
1634 include only those that have been read before the error was detected.
1635 (In the case of an ACL rejection, they have all been read.)
1636
6b31b150
PH
1637PH/69 The HTML version of the specification is now built in a directory called
1638 spec_html instead of spec.html, because the latter looks like a path with
1639 a MIME-type, and this confuses some software.
1640
1641PH/70 Catch two compiler warnings in sieve.c.
1642
d515a917
PH
1643PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1644 function verify_get_ident() calls ip_connect() to connect a socket, but
1645 if the "connect()" function timed out, ip_connect() used to close the
1646 socket. However, verify_get_ident() also closes the socket later, and in
1647 between Exim writes to the log, which may get opened at this point. When
1648 the socket was closed in ip_connect(), the log could get the same file
1649 descriptor number as the socket. This naturally causes chaos. The fix is
1650 not to close the socket in ip_connect(); the socket should be closed by
1651 the function that creates it. There was only one place in the code where
1652 this was missing, in the iplookup router, which I don't think anybody now
1653 uses, but I've fixed it anyway.
1654
9b8fadde
PH
1655PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1656 well as to direct DNS lookups. Otherwise the handling of names in host
1657 lists is inconsistent and therefore confusing.
1658
214e2000 1659
5de37277
PH
1660Exim version 4.60
1661-----------------
1662
cc38ddbf
PH
1663PH/01 Two changes to the default runtime configuration:
1664
1665 (1) Move the checks for relay_from_hosts and authenticated clients from
1666 after to before the (commented out) DNS black list checks.
1667
1668 (2) Add control=submission to the relay_from_hosts and authenticated
1669 clients checks, on the grounds that messages accepted by these
1670 statements are most likely to be submissions.
5de37277 1671
72fdd6ae
PH
1672PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1673
1674 (1) Generate an error if the third argument for the ${prvs expansion is
1675 not a single digit.
1676
1677 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1678 string.
1679
1680 (3) Reset the variables that are obtained from the first argument of
1681 ${prvscheck and used in the second argument before leaving the code,
1682 because their memory is reclaimed, so using them afterwards may do
1683 silly things.
1684
1685 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1686 one (it's much easier than Tom thought :-).
1687
1688 (5) Because of (4), we can now allow for the use of $prvscheck_result
1689 inside the third argument.
cb9328de 1690
cb741023
PH
1691PH/03 For some reason, the default setting of PATH when running a command from
1692 a pipe transport was just "/usr/bin". I have changed it to
1693 "/bin:/usr/bin".
1694
f174f16e
PH
1695PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1696 anything to be listed in the output from -bV.
b2f5a032 1697
c25242d7
PH
1698PH/05 When a filter generated an autoreply, the entire To: header line was
1699 quoted in the delivery log line, like this:
1700
1701 => >A.N.Other <ano@some.domain> <original@ddress> ...
1702
1703 This has been changed so that it extracts the operative address. There
1704 may be more than one such address. If so, they are comma-separated, like
1705 this:
1706
1707 => >ano@some.domain,ona@other.domain <original@ddress> ...
1708
82c19f95
PH
1709PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1710 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1711 not being looked up in the rDNS to get a host name, Exim was showing the
1712 IP address twice in Received: lines, even though the IP addresses were
1713 identical. For example:
1714
1715 Received: from [1.2.3.4] (helo=[1.2.3.4])
1716
1717 However, if the real host name was known, it was omitting the HELO data
1718 if it matched the actual IP address. This has been tidied up so that it
1719 doesn't show the same IP address twice.
1720
d7ffbc12
PH
1721PH/07 When both +timestamp and +memory debugging was on, the value given by
1722 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1723 called by the debug printing, thereby overwriting the timestamp buffer.
1724 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1725
9f526266
PH
1726PH/08 When the original message was included in an autoreply transport, it
1727 always said "this is a copy of the message, including all the headers",
1728 even if body_only or headers_only was set. It now gives an appropriate
1729 message.
1730
87fcc8b9
PH
1731PH/09 Applied a patch from the Sieve maintainer which:
1732
1733 o fixes some comments
1734 o adds the (disabled) notify extension core
1735 o adds some debug output for the result of if/elsif tests
1736 o points to the current vacation draft in the documentation
1737 and documents the missing references header update
1738
1739 and most important:
1740
1741 o fixes a bug in processing the envelope test (when testing
1742 multiple envelope elements, the last element determinted the
1743 result)
1744
456682f5
PH
1745PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1746 Electronic Mail") by including:
1747
1748 Auto-submitted: auto-generated
1749
1750 in the messages that it generates (bounce messages and others, such as
1751 warnings). In the case of bounce messages for non-SMTP mesages, there was
1752 also a typo: it was using "Auto_submitted" (underscore instead of
1753 hyphen). Since every message generated by Exim is necessarily in response
1754 to another message, thes have all been changed to:
1755
1756 Auto-Submitted: auto-replied
1757
1758 in accordance with these statements in the RFC:
1759
1760 The auto-replied keyword:
1761
1762 - SHOULD be used on messages sent in direct response to another
1763 message by an automatic process,
1764
1765 - MUST NOT be used on manually-generated messages,
1766
1767 - MAY be used on Delivery Status Notifications (DSNs) and Message
1768 Disposition Notifications (MDNs),
1769
1770 - MUST NOT be used on messages generated by automatic or periodic
1771 processes, except for messages which are automatic responses to
1772 other messages.
1773
3e46c1aa
PH
1774PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1775 to the default Received: header definition.
456682f5 1776
49826d12
PH
1777PH/12 Added log selector acl_warn_skipped (default on).
1778
eba0c039
PH
1779PH/13 After a successful wildlsearch lookup, discard the values of numeric
1780 variables because (a) they are in the wrong storage pool and (b) even if
1781 they were copied, it wouldn't work properly because of the caching.
1782
a0d6ba8a
PH
1783PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1784 checking when decoding. Apparently there are clients that generate
1785 overlong encoded strings. Why am I not surprised?
1786
f0917727
PH
1787PH/15 If the first argument of "${if match_address" was not empty, but did not
1788 contain an "@" character, Exim crashed. Now it writes a panic log message
1789 and treats the condition as false.
1790
096fee00
PH
1791PH/16 In autoreply, treat an empty string for "once" the same as unset.
1792
024bd3c2
PH
1793PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1794 extension "envelope-auth". The code is finished and in agreement with
1795 other implementations, but there is no documentation so far and in fact,
1796 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1797 not changing the active code.
1798
1799 Print executed "if" and "elsif" statements when debugging is used. This
1800 helps a great deal to understand what a filter does.
1801
1802 Document more things not specified clearly in RFC3028. I had all this
1803 sorted out, when out of a sudden new issues came to my mind. Oops."
1804
df199fec
PH
1805PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1806 (Bugzilla #53).
1807
d27f1df3
PH
1808PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1809 canonical form (as documented). However, after a host name lookup from
1810 the IP address, check_host() was doing a simple string comparison with
1811 addresses acquired from the DNS when checking that the found name did
1812 have the original IP as one of its addresses. Since any found IPv6
1813 addresses are likely to be in abbreviated form, the comparison could
1814 fail. Luckily, there already exists a function for doing the comparison
1815 by converting both addresses to binary, so now that is used instead of
1816 the text comparison.
1817
96776534
PH
1818PH/20 There was another similar case to PH/19, when a complete host name was
1819 given in a host list; looking up its IP address could give an abbreviated
1820 form, whereas the current host's name might or might not be abbreviated.
1821 The same fix has been applied.
1822
5de37277 1823
9a799bc0
PH
1824Exim version 4.54
1825-----------------
1826
1827PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1828 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1829 It now does.
1830
99a4b039
PH
1831PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1832 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1833
1834PH/03 Typo: missing ".o" in src/pcre/Makefile.
1835
4b233853
PH
1836PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1837 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1838 Also, for "Auto-Submitted", treat anything other than "no" as
1839 non-personal, in accordance with RFC 3834. (Previously it treated
1840 anything starting "auto-" as non-personal.)
1841
8857ccfd
PH
1842TF/01 The control=submission/name=... option had a problem with syntax
1843 errors if the name included a slash character. The /name= option
1844 now slurps the rest of the string, so it can include any characters
1845 but it must come last in the list of options (after /sender_retain
1846 or /domain=).
1847
433a2980
PH
1848PH/05 Some modifications to the interface to the fake nameserver for the new
1849 testing suite.
1850
3e46c1aa 1851
9a799bc0 1852
e3a311ba
TK
1853Exim version 4.53
1854-----------------
1855
1856TK/01 Added the "success_on_redirect" address verification option. See
1857 NewStuff for rationale and an example.
1858
13b685f9
PH
1859PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1860
395ff96d
PH
1861PH/02 Patch to exigrep to allow it to work on syslog lines.
1862
5b68f6e4
PH
1863PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1864 fread() to skip over the body file's header line, because in Cygwin the
1865 header line is locked and is inaccessible.
1866
1ab52c69
PH
1867PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1868 co-exist for some time) to make it clear that it is the Exim ID that is
1869 referenced, not the Message-ID: header line.
1870
b07e6aa3
PH
1871PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1872 string_format() function, because snprintf() does not exist on all
1873 operating systems.
1874
254e032f
PH
1875PH/06 The use of forbid_filter_existstest now also locks out the use of the
1876 ${stat: expansion item.
1877
3af76a81
PH
1878PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1879 protocol synchronization error", to keep the pedants happy.
1880
2548ba04
PH
1881PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1882 well as for IRIX systems, when gcc is being used. See the host.c source
1883 file for comments.
1884
b6c6011d
PH
1885PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1886
cf39cf57
PH
1887PH/10 Named domain lists were not working if used in a queue_smtp_domains
1888 setting.
1889
f1513293
PH
1890PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1891 transport and to the smtp transport in LMTP mode.
1892
727549a4
PH
1893TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1894
af46795e
PH
1895PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1896 run a filter in a subprocess. This could lead to confusion in subsequent
1897 lookups in the parent process. There should also be a search_tidyup() at
1898 the end of the subprocess.
1899
d7b47fd0
PH
1900PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1901 only if the host matched helo_try_verify_hosts, which caused the
1902 verification to occur when the EHLO/HELO command was issued. The ACL just
1903 tested the remembered result. Now, if a previous verification attempt has
1904 not happened, "verify = helo" does it there and then.
1905
ee744174
JJ
1906JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1907
b582ab87
PH
1908TK/03 Fix log output including CR from clamd.
1909
41a13e0a
PH
1910PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1911 exist provoked a memory error which could cause a segfault.
1912
f625cc5a
PH
1913PH/15 Installed PCRE 6.2
1914
1915PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1916
21f7af35
PH
1917PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1918 of the problem. Specifically, suggested +O2 rather than +O1 for the
1919 HP-UX compiler.
1920
31480e42
PH
1921PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1922
2d280592
PH
1923PH/20 If a delivery was routed to a non-standard port by means of an SRV
1924 record, the port was not correctly logged when the outgoing_port log
1925 selector was set (it logged the transort's default port).
1926
7cd1141b
PH
1927PH/21 Added support for host-specific ports to manualroute, queryprogram,
1928 fallback_hosts, and "hosts" in the smtp transport.
1929
1930PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1931 host errors such as "Connection refused".
1932
750af86e
PH
1933PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1934 authentication with radiusclient 0.4.9:
1935
1936 - Error returned from rc_read_config was caught wrongly
1937 - Username/password not passed on to radius server due to wrong length.
1938
1939 The presumption is that some radiusclient API changes for 4.51/PH/17
1940 were not taken care of correctly. The code is still untested by me (my
1941 Linux distribution still has 0.3.2 of radiusclient), but it was
1942 contributed by a Radius user.
1943
1944PH/24 When doing a callout, the value of $domain wasn't set correctly when
1945 expanding the "port" option of the smtp transport.
1946
4304270b
TK
1947TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1948 while reading a MIME header. Thanks to Tom Hughes for a patch.
1949
750af86e
PH
1950PH/24 Include config.h inside local_scan.h so that configuration settings are
1951 available.
1952
64ffc24f
PH
1953PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1954 that in an ACL for RCPT (for example), you can examine exactly what was
1955 received.
1956
5dd9625b
PH
1957PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1958 commands, but it was not correctly comparing the address with the actual
1959 client host address. Thus, it would show the EHLO address in Received:
1960 header lines when this was not necessary.
1961
5591031b
PH
1962PH/27 Added the % operator to ${eval:}.
1963
ba18e66a
PH
1964PH/28 Exim tries to create and chdir to its spool directory when it starts;
1965 it should be ignoring failures (because with -C, for example, it has lost
1966 privilege). It wasn't ignoring creation failures other than "already
1967 exists".
1968
9cec981f
PH
1969PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1970 -bV or -d is used.
1971
aa2b5c79
PH
1972PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1973 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1974 too many continuations, the temporary file was not being removed, and the
1975 return code was incorrect.
aa2b5c79 1976
48a53b7f
PH
1977PH/31 Missing "BOOL" in function definition in filtertest.c.
1978
1c59d63b
PH
1979PH/32 Applied Sieve patches from the maintainer.
1980
671012da
TK
1981TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1982
1509d3a8
PH
1983PH/33 Added "verify = not_blind".
1984
1985PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1986 Local/Makefile (with some defaults set). These are used in built scripts
1987 such as exicyclog, but they have never been used in the exim_install
1988 script (though there are many overriding facilities there). I have
1989 arranged that the exim_install script now takes note of these two
1990 settings.
1991
1992PH/35 Installed configuration files for Dragonfly.
1993
2fe1a124
PH
1994PH/36 When a locally submitted message by a trusted user did not contain a
1995 From: header, and the sender address was obtained from -f or from an SMTP
1996 MAIL command, and the trusted user did not use -F to supply a sender
1997 name, $originator_name was incorrectly used when constructing a From:
1998 header. Furthermore, $originator_name was used for submission mode
1999 messages from external hosts without From: headers in a similar way,
2000 which is clearly wrong.
2001
8800895a
PH
2002PH/37 Added control=suppress_local_fixups.
2003
ccfdb010
PH
2004PH/38 When log_selector = +received_sender was set, and the addition of the
2005 sender made the log line's construction buffer exactly full, or one byte
2006 less than full, an overflow happened when the terminating "\n" was
2007 subsequently added.
2008
1130bfb0
PH
2009PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2010 when the result of a list match is failure because a DNS lookup failed.
2011
ebcb507f
PH
2012PH/40 RM_COMMAND is now used in the building process.
2013
c35e155c
PH
2014PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2015 the "build-* directories that it finds.
2016
95d1f782
PH
2017PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2018 address in a domain literal was a prefix of an interface address.
2019
fd6de02e
PH
2020PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2021 when verifying a sender address, unless rewrite_headers is false.
2022
58de37c5
PH
2023PH/44 Wrote a long comment about why errors_to addresses are verified as
2024 recipients, not senders.
2025
261cf466
TF
2026TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2027 the ratelimit ACL was added.
2028
3ee512ff
PH
2029PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2030
e08c430f
PH
2031PH/46 Added extra information about PostgreSQL errors to the error string.
2032
bef5a11f
PH
2033PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2034 avoiding the need to install special zones in a real server. This is
2035 backwards compatible; if it can't find the fake resolver, it drops back.
2036 Thus, both old and new test suites can be run.
2037
7546de58
TF
2038TF/02 Added util/ratelimit.pl
2039
e5d5a95f
TF
2040TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2041 clock is set back in time.
2042
2e88a017
TF
2043TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2044 Candler <B.Candler@pobox.com>.
2045
a5f65aa4
TF
2046TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2047 OK for addresses that are the result of redirections.
2048
e7726cbf
PH
2049PH/48 A number of further additions for the benefit of the new test suite,
2050 including a fake gethostbyname() that interfaces to the fake DNS resolver
2051 (see PH/47 above).
2052
a7fdad5b
TF
2053TF/06 The fix for widen_domains has also been applied to qualify_single and
2054 search_parents which are the other dnslookup options that can cause
2055 header rewrites.
2056
6af56900
PH
2057PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2058 type ("H").
2059
0925ede6
PH
2060PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2061
66afa403
TF
2062TF/07 Exim produced the error message "an SRV record indicated no SMTP
2063 service" if it encountered an MX record with an empty target hostname.
2064 The message is now "an MX or SRV record indicated no SMTP service".
2065
0154e85a
TF
2066TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2067 if the DNS of the sending site is misconfigured. This is quite a
2068 common situation. This change restores the behaviour of treating a
2069 helo verification defer as a failure.
2070
16f12c76
PH
2071PH/51 If self=fail was set on a router, the bounce message did not include the
2072 actual error message.
2073
bbe902f0 2074
e5a9dba6
PH
2075Exim version 4.52
2076-----------------
2077
2078TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2079
22c3b60b
PH
2080PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2081 command itself ended in error, the underlying message about the transport
2082 filter timeout was being overwritten with the pipe command error. Now the
2083 underlying error message should be appended to the second error message.
2084
06a9b4b5
PH
2085TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2086
c1ac6996
PH
2087PH/02 Reduce the amount of output that "make" produces by default. Full output
2088 can still be requested.
2089
9c7a242c
PH
2090PH/03 The warning log line about a condition test deferring for a "warn" verb
2091 was being output only once per connection, rather than after each
2092 occurrence (because it was using the same function as for successful
2093 "warn" verbs). This seems wrong, so I have changed it.
2094
87ba3f5f
PH
2095TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2096 it should not have, which might have caused a crash in the right
2097 circumstances, but probably never did.
2098
2099PH/04 Installed a modified version of Tony Finch's patch to make submission
2100 mode fix the return path as well as the Sender: header line, and to
2101 add a /name= option so that you can make the user's friendly name appear
2102 in the header line.
2103
29aba418
TF
2104TF/03 Added the control = fakedefer ACL modifier.
2105
fe0dab11
TF
2106TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2107 Mark Lowes for thorough testing.
870f6ba8 2108
11d337a4
TK
2109TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2110
2111TK/03 Merged latest SRS patch from Miles Wilton.
2112
415c8f3b
PH
2113PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2114 with the definition in sysexits.h (which is #included earlier).
2115 Fortunately, Exim does not actually use EX_OK. The code used to try to
2116 preserve the sysexits.h value, by assumimg that macro definitions were
2117 scanned for macro replacements. I have been disabused of this notion,
2118 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2119
958541e9
PH
2120PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2121 in the smtp transport. When a block could not be written in a single
2122 write() function, the timeout was being re-applied to each part-write.
2123 This seems wrong - if the receiver was accepting one byte at a time it
2124 would take for ever. The timeout is now adjusted when this happens. It
2125 doesn't have to be particularly precise.
2126
c206415f
TK
2127TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2128 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2129
2a4be8f9
PH
2130PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2131 without a domain if the check to <postmaster@domain> fails.
2132
1cba11c5
SC
2133SC/01 Eximstats: added -xls and the ability to specify output files
2134 (patch written by Frank Heydlauf).
2135
2136SC/02 Eximstats: use FileHandles for outputing results.
2137
2138SC/03 Eximstats: allow any combination of xls, txt, and html output.
2139
2140SC/04 Eximstats: fixed display of large numbers with -nvr option
2141
2142SC/05 Eximstats: fixed merging of reports with empty tables.
2143
2144SC/06 Eximstats: added the -include_original_destination flag
2145
2146SC/07 Eximstats: removed tabs and trailing whitespace.
2147
1005d00e
TK
2148TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2149
2150TK/06 MBOX spool code: Add real "From " MBOX separator line
2151 so the .eml file is really in mbox format (even though
2152 most programs do not really care). Patch from Alex Miller.
2153
2154TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2155 The latter is generated from $received_to and is only set if the
2156 message has one envelope recipient. SA can use these headers,
2157 obviously out-of-the-box. Patch from Alex Miller.
2158
9b4768fa
PH
2159PH/08 The ${def test on a variable was returning false if the variable's
2160 value was "0", contrary to what the specification has always said!
2161 The result should be true unless the variable is empty.
2162
2163PH/09 The syntax error of a character other than { following "${if
2164 def:variable_name" (after optional whitespace) was not being diagnosed.
2165 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2166 accidental colon was present, for example, could give incorrect results.
2167
0d7eb84a
PH
2168PH/10 Tidied the code in a number of places where the st_size field of a stat()
2169 result is used (not including appendfile, where other changes are about
2170 to be made).
2171
2172PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2173 This involved changing a lot of size variables from int to off_t. It
2174 should work with maildirs and everything.
2175
40727bee
TK
2176TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2177 spamd dying while we are connected to it.
2178
554d2369
TF
2179TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2180 <jgh@wizmail.org>
2181
1f922db1
PH
2182PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2183 function for BDB 4.3.
2184
ef213c3b
PH
2185PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2186
8ac170f3
PH
2187PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2188 the sources for PCRE have been re-arranged and more files are now
2189 involved.
2190
b1c749bb
PH
2191PH/15 The code I had for printing potentially long long variables in PH/11
2192 above was not the best (it lost precision). The length of off_t variables
2193 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2194 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2195 to be "long long int" or "long int". This is needed for the internal
2196 formatting function string_vformat().
b1c749bb 2197
4aac9b49
PH
2198PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2199 the configuration file to be ":syslog", then the script "guesses" where
2200 the logs files are, rather than using the compiled in default. In our
2201 case the guess is not the same as the compiled default, so the script
2202 suddenly stopped working when I started to use syslog. The patch checks
2203 to see if log_file_path is "". If so, it attempts to read it from exim
2204 with no configuration file to get the compiled in version, before it
2205 falls back to the previous guessing code."
2206
294520c8
TK
2207TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2208 implementing BATV in an Exim configuration. See NewStuff for the gory
2209 details.
2210
5bd022fe
PH
2211PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2212 Makefile that are specific to HP-UX.
2213
90e9ce59
PH
2214PH/18 If the "use_postmaster" option was set for a recipient callout together
2215 with the "random" option, the postmaster address was used as the MAIL
2216 FROM address for the random test, but not for the subsequent recipient
2217 test. It is now used for both.
2218
5ea81592
PH
2219PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2220 patch removes a few documentation additions to RFC 3028, because the
2221 latest draft now contains them. It adds the new en;ascii-case comparator
2222 and a new error check for 8bit text in MIME parts. Comparator and
2223 require names are now matched exactly. I enabled the subaddress
2224 extension, but it is not well tested yet (read: it works for me)."
2225
c6c2dc1d
PH
2226PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2227 rework some of the code of TK/09 above to avoid the hardwired use of
2228 "%lld" and "long long". Replaced the call to snprintf() with a call to
2229 string_vformat().
2230
fffffe4c
PH
2231PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2232 records point to non-existent hosts", "retry timeout exceeded", and
2233 "retry time not reached for any host after a long failure period".
ca02eafb 2234
9a26b6b2
PH
2235PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2236 experimental DomainKeys support:
2237
2238 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2239 (2) On an error such as an illegally used "control", the wrong name for
2240 the control was given.
2241
2242 These problems did NOT occur unless DomainKeys support was compiled.
2243
4aee0225
PH
2244PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2245
32d668a5
PH
2246PH/24 Added ${if match_ip condition.
2247
8187c3f3
PH
2248PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2249 databases so that it will be absolutely obvious if a crash occurs in the
2250 DB library. This is a regular occurrence (often caused by mis-matched
2251 db.h files).
2252
ff790e47 2253PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2254 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2255 picked up on a user's system that detects such things. There doesn't seem
2256 to be a gcc warning option for this - only an attribute that has to be
2257 put on the function's prototype. It seems that in Fedora Core 4 they have
2258 set this on a number of new functions. No doubt there will be more in due
2259 course.
ff790e47 2260
5417f6d1
PH
2261PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2262 specify a transport. However, if an address that was verified by such a
2263 router was the subject of a callout, Exim crashed because it tried to
2264 read the rcpt_include_affixes from the non-existent transport. Now it
2265 just assumes that the setting of that option is false. This bug was
2266 introduced by 4.51/PH/31.
2267
59cf8544
PH
2268PH/28 Changed -d+all to exclude +memory, because that information is very
2269 rarely of interest, but it makes the output a lot bigger. People tend to
2270 do -d+all out of habit.
2271
e7ad8a65
PH
2272PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2273 code in os-type was giving problems when libc.so lives in lib64, like on
2274 x86_64 Fedora Core.
2275
ade42478
PH
2276PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2277 aren't the modern standard, and it seems that some systems' include files
2278 don't always have them. Exim was already checking for some of the newer
2279 ones like T_AAAA, and defining it itself. I've added checks for all the
2280 record types that Exim uses.
2281
182ad5cf
PH
2282PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2283 not automatically generating a new one, as it is supposed to. This
2284 prevented TLS from working. If the file did exist, but contained invalid
2285 data, a new version was generated, as expected. It was only the case of a
2286 non-existent file that was broken.
2287
b0d9fc80
TK
2288TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2289 with a change in libdomainkeys > 0.64.
2290
2291TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2292 from DNS. If the selector record carries the flag, it now has
2293 precedence over the domain-wide flag.
2294
2295TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2296
47c7a64a
PH
2297PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2298 the use of a port name that isn't defined in /etc/services) occurred, the
2299 message was deferred as in a normal delivery, and thus remained on the
2300 spool, instead of being failed because of the mua_wrapper setting. This
2301 is now fixed, and I tidied up some of the mua_wrapper messages at the
2302 same time.
2303
a388bce4
SC
2304SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2305 the messages in a hash of arrays rather than using individual hashes.
2306 This is a bit cleaner and results in dramatic memory savings, albeit
2307 at a slight CPU cost.
2308
2309SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2310 as requested by Marc Sherman.
2311
2312SC/10 Eximstats: added histograms for user specified patterns as requested
2313 by Marc Sherman.
2314
0793e4ed
SC
2315SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2316
c58b88df
PH
2317PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2318 fopen() in the content-scanning modules that did not already have it.
2319
e7ad8a65 2320
7982096b
PH
2321Exim version 4.51
2322-----------------
2323
1a46a8c5
PH
2324TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2325 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2326
2f079f46 2327TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2328
2329TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2330
2331PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2332 to test Sieve filters that use "vacation".
2333
2334PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2335 that changes the way the GnuTLS parameters are stored in the cache file.
2336 The new format can be generated externally. For backward compatibility,
2337 if the data in the cache doesn't make sense, Exim assumes it has read an
2338 old-format file, and it generates new data and writes a new file. This
2339 means that you can't go back to an older release without removing the
2340 file.
2341
2342PH/03 A redirect router that has both "unseen" and "one_time" set does not
2343 work if there are any delivery delays because "one_time" forces the
2344 parent to be marked "delivered", so its unseen clone is never tried
2345 again. For this reason, Exim now forbids the simultaneous setting of
2346 these two options.
2347
2348PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2349 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2350 entry if you want to know the details. The fix, however, neglected to
2351 consider the case when local delivery batching is involved. The test for
2352 "previously delivered" was not happening when checking to see if an
2353 address could be batched with a previous (undelivered) one; under
2354 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2355 address.
1a46a8c5
PH
2356
2357PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2358 in its include files, and this causes problems building Exim.
2359
2360PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2361 header_syntax) but Exim was just ignoring anything given after a slash.
2362 In particular, this caused confusion with an attempt to use "verify =
2363 reverse_host_lookup/defer_ok". An error is now given when options are
2364 supplied for verify items that do not have them. (Maybe reverse_host_
2365 lookup should have a defer_ok option, but that's a different point.)
2366
2367PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2368 defined by RFC 821) to 2048, because there were problems with some AUTH
2369 commands, and RFC 1869 says the size should be increased for extended
2370 SMTP commands that take arguments.
2371
2372PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2373 Finch).
2374
2375PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2376 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2377
49c2d5ea
PH
2378PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2379 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2380 whatever). Otherwise the password may appear in the log. Following change
2381 PH/42 below, there is no longer a chance of it appearing in a bounce
2382 message.
49c2d5ea 2383
bf759a8b
PH
2384PH/11 Installed exipick version 20050225.0 from John Jetmore.
2385
83364d30
PH
2386PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2387 of its addresses was ever tried. (Bugzilla bug #2.)
2388
7999bbd7
PH
2389PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2390 the result incorrectly in the debug output. (It correctly added a newline
2391 to what was transported.)
2392
7dbf77c9
PH
2393TF/01 Added $received_time.
2394
74e0617f
PH
2395PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2396 commented out examples of how to interface to a virus scanner and to
2397 SpamAssassin. Also added commented examples of av_scanner and
2398 spamd_address settings.
2399
2f079f46
PH
2400PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2401 and controls are allowed in which ACLs. There were a couple of minor
2402 errors. Some of the entries in the conditions table (which is a table of
2403 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2404 negation of where the condition IS allowed.
2405
8c841523
PH
2406PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2407
7766a4f0
PH
2408PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2409 header file does not have a version number, so I've had to invent a new
2410 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2411 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2412 radiusclient), but it was contributed by a Radius user.
2413
8b417f2c
PH
2414PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2415 files or directories, for OpenSSL.
2416
901f42cb
PH
2417PH/19 When an Exim process that is running as root has to create an Exim log
2418 file, it does so in a subprocess that runs as exim:exim so as to get the
2419 ownership right at creation (otherwise, other Exim processes might see
2420 the file with the wrong ownership). There was no test for failure of this
2421 fork() call, which would lead to the process getting stuck as it waited
2422 for a non-existent subprocess. Forks do occasionally fail when resources
2423 run out. I reviewed all the other calls to fork(); they all seem to check
2424 for failure.
2425
f9b9210e
PH
2426PH/20 When checking for unexpected SMTP input at connect time (before writing
2427 the banner), Exim was not dealing correctly with a non-positive return
2428 from the read() function. If the client had disconnected by this time,
2429 the result was a log entry for a synchronization error with an empty
2430 string after "input=" when read() returned zero. If read() returned -1
2431 (an event I could not check), uninitialized data bytes were printed.
2432 There were reports of junk text (parts of files, etc) appearing after
2433 "input=".
2434
54cdb463
PH
2435PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2436
cf00dad6
PH
2437PH/22 Added support for macro redefinition, and (re)definition in between
2438 driver and ACL definitions.
2439
acb1b346
PH
2440PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2441 forgetting to use the resulting value; it was using the unexpanded value.
2442
c5ddb310
PH
2443PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2444 hadn't been configured. The fix is from Juergen Kreileder, who
2445 understands it better than I do:
2446
2447 "Here's what I see happening with three configured cyrus_sasl
2448 authenticators configured (plain, login, cram-md5):
2449
2450 On startup auth_cyrus_sasl_init() gets called for each of these.
2451 This means three calls to sasl_listmech() without a specified mech_list.
2452 => SASL tests which mechs of all available mechs actually work
2453 => three warnings about OTP not working
2454 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2455
2456 With the patch, sasl_listmech() also gets called three times. But now
2457 SASL's mech_list option is set to the server_mech specified in the the
2458 authenticator. Or in other words, the answer from sasl_listmech()
2459 gets limited to just the mech you're testing for (which is different
2460 for each call.)
2461 => the return list contains just 'plain' or 'login', 'cram-md5' or
2462 nothing depending on the value of ob->server_mech.
2463
2464 I've just tested the patch: Authentication still works fine,
2465 unavailable mechs specified in the exim configuration are still
2466 caught, and the auth.log warnings about OTP are gone."
2467
31619da6
PH
2468PH/25 When debugging is enabled, the contents of the command line are added
2469 to the debugging output, even when log_selector=+arguments is not
2470 specified.
2471
bebaf0fc
PH
2472PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2473 answer is "GNU", and only if the return is "GNU/something" is the answer
2474 "Linux".
2475
475fe28a
PH
2476PH/27 $acl_verify_message is now set immediately after the failure of a
2477 verification in an ACL, and so is available in subsequent modifiers. In
2478 particular, the message can be preserved by coding like this:
2479
2480 warn !verify = sender
2481 set acl_m0 = $acl_verify_message
2482
2483 Previously, $acl_verify_message was set only while expanding "message"
2484 and "log_message" when a very denied access.
2485
7e8bec7a
PH
2486PH/28 Modified OS/os.c-Linux with
2487
2488 -#ifndef OS_LOAD_AVERAGE
2489 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2490
2491 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2492 nomenclature these days.)
2493
e4a89c47
PH
2494PH/29 Installed patch from the Sieve maintainer that adds the options
2495 sieve_useraddress and sieve_subaddress to the redirect router.
2496
5ca2a9a1
PH
2497PH/30 In these circumstances:
2498 . Two addresses routed to the same list of hosts;
2499 . First host does not offer TLS;
2500 . First host accepts first address;
2501 . First host gives temporary error to second address;
2502 . Second host offers TLS and a TLS session is established;
2503 . Second host accepts second address.
2504 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2505 and peerdn, if requested) that were in fact used only for the second
2506 address.
7e8bec7a 2507
c688b954
PH
2508PH/31 When doing a callout as part of verifying an address, Exim was not paying
2509 attention to any local part prefix or suffix that was matched by the
2510 router that accepted the address. It now behaves in the same way as it
2511 does for delivery: the affixes are removed from the local part unless
2512 rcpt_include_affixes is set on the transport.
2513
fed77020
PH
2514PH/32 Add the sender address, as F=<...>, to the log line when logging a
2515 timeout during the DATA phase of an incoming message.
2516
7fe1560f
PH
2517PH/33 Sieve envelope tests were broken for match types other than :is. I have
2518 applied a patch sanctioned by the Sieve maintainer.
c688b954 2519
ebb6e6d5
PH
2520PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2521 the uid or gid is negative. A case of a negative gid caused this to be
2522 noticed. The fix allows for either to be negative.
2523
9c4e8f60
PH
2524PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2525 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2526 overlooked.
2527
2528PH/36 The change PH/12 above was broken. Fixed it.
2529
d7174846
PH
2530PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2531 the grounds that routing the same address twice would always produce the
2532 same answer. This might have been true once, but it is certainly no
2533 longer true now. Routing a child address may depend on the previous
2534 routing that produced that child. Some complicated redirection strategies
2535 went wrong when messages had multiple recipients, and made Exim's
2536 behaviour dependent on the order in which the addresses were given.
2537
2538 I have moved the duplicate checking until after the routing is complete.
2539 Exim scans the addresses that are assigned to local and remote
2540 transports, and removes any duplicates. This means that more work will be
2541 done, as duplicates will always all be routed, but duplicates are
2542 presumably rare, so I don't expect this is of any significance.
2543
2544 For deliveries to pipes, files, and autoreplies, the duplicate checking
2545 still happens during the routing process, since they are not going to be
2546 routed further.
2547
cfe75fc3
PH
2548PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2549 It corrects a timeout issue with spamd. This is Ian's comment: "The
2550 background is that sometimes spamd either never reads data from a
2551 connection it has accepted, or it never writes response data. The exiscan
2552 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2553 blindly assumes that writes won't block so it may never time out."
2554
be22d70e
PH
2555PH/39 Allow G after quota size as well as K and M.
2556
0612b098
PH
2557PH/40 The value set for $authenticated_id in an authenticator may not contain
2558 binary zeroes or newlines because the value is written to log lines and
2559 to spool files. There was no check on this. Now the value is run through
2560 the string_printing() function so that such characters are converted to
2561 printable escape sequences.
2562
2e0c1448
PH
2563PH/41 $message_linecount is a new variable that contains the total number of
2564 lines in the message. Compare $body_linecount, which is the count for the
2565 body only.
2566
447d236c
PH
2567PH/42 Exim no longer gives details of delivery errors for specific addresses in
2568 bounce and delay warning messages, except in certain special cases, which
2569 are as follows:
2570
2571 (a) An SMTP error message from a remote host;
2572 (b) A message specified in a :fail: redirection;
2573 (c) A message specified in a "fail" command in a system filter;
2574 (d) A message specified in a FAIL return from the queryprogram router;
2575 (e) A message specified by the cannot_route_message router option.
2576
2577 In these cases only, Exim does include the error details in bounce and
2578 warning messages. There are also a few cases where bland messages such
2579 as "unrouteable address" or "local delivery error" are given.
2580
d20976dc
PH
2581PH/43 $value is now also set for the "else" part of a ${run expansion.
2582
f656d135
PH
2583PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2584 being worked on, but at least Exim now implements the latest version to
2585 play with."
2586
2e2a30b4
PH
2587PH/45 In a pipe transport, although a timeout while waiting for the pipe
2588 process to complete was treated as a delivery failure, a timeout while
2589 writing the message to the pipe was logged, but erroneously treated as a
2590 successful delivery. Such timeouts include transport filter timeouts. For
2591 consistency with the overall process timeout, these timeouts are now
2592 treated as errors, giving rise to delivery failures by default. However,
2593 there is now a new Boolean option for the pipe transport called
2594 timeout_defer, which, if set TRUE, converts the failures into defers for
2595 both kinds of timeout. A transport filter timeout is now identified in
2596 the log output.
2597
9176e9f0
PH
2598PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2599 systems where "make" and "gmake" are different, calling "gmake" at top
2600 level broke things. I've arranged for the value of $(MAKE) to be passed
2601 from the Makefile to this script so that it can call the same version of
2602 "make".
2603
7982096b 2604
bbe902f0
PH
2605A note about Exim versions 4.44 and 4.50
2606----------------------------------------
2607
2608Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2609changes of various kinds. As a consequence, a big documentation update was
2610needed. This delayed the release for rather longer than seemed good, especially
2611in the light of a couple of (minor) security issues. Therefore, the changes
2612that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2613release. So 4.44 and 4.50 are in effect two different branches that both start
2614from 4.43.
2615
2616I have left the 4.50 change log unchanged; it contains all the changes since
26174.43. The change log for 4.44 is below; many of its items are identical to
2618those for 4.50. This seems to be the most sensible way to preserve the
2619historical information.
2620
2621
f7b63901 2622Exim version 4.50
495ae4b0
PH
2623-----------------
2624
5fe762f6
PH
2625 1. Minor wording change to the doc/README.SIEVE file.
2626
139059f6 2627 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2628 computation of the current number of files was incorrect.
495ae4b0 2629
7086e875
PH
2630 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2631 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2632 place.
2633
35af9f61
PH
2634 4. Give more explanation in the error message when the command for a transport
2635 filter fails to execute.
2636
b668c215
PH
2637 5. There are several places where Exim runs a non-Exim command in a
2638 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2639 was being done only for the command run by the queryprogram router. It is
2640 now done for all such subprocesses. The other cases are: ${run, transport
2641 filters, and the commands run by the lmtp and pipe transports.
2642
a494b1e1
PH
2643 6. Added CONFIGURE_GROUP build-time option.
2644
2645 7. Some older OS have a limit of 256 on the maximum number of file
2646 descriptors. Exim was using setrlimit() to set 1000 as a large value
2647 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2648 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2649
c5fcb476
PH
2650 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2651 was an oversight, and furthermore, ever since the addition of extra
2652 controls (e.g. 4.43/32), the checks on when to allow different forms of
2653 "control" were broken. There should now be diagnostics for all cases when a
2654 control that does not make sense is encountered.
2655
69358f02
PH
2656 9. Added the /retain_sender option to "control=submission".
2657
5be20824
PH
265810. $recipients is now available in the predata ACL (oversight).
2659
eb2c0248
PH
266011. Tidy the search cache before the fork to do a delivery from a message
2661 received from the command line. Otherwise the child will trigger a lookup
2662 failure and thereby defer the delivery if it tries to use (for example) a
2663 cached ldap connection that the parent has called unbind on.
2664
2a3eea10
PH
266512. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2666 of $address_data from the recipient verification was clobbered by the
2667 sender verification.
2668
266913. The value of address_data from a sender verification is now available in
2670 $sender_address_data in subsequent conditions in the ACL statement.
2671
23c7ff99
PH
267214. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2673
4deaf07d
PH
267415. Added a new option "connect=<time>" to callout options, to set a different
2675 connection timeout.
2676
926e1192
PH
267716. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2678 was its contents. (It was OK if the option was not defined at all.)
2679
650edc6f
PH
268017. A "Completed" log line is now written for messages that are removed from
2681 the spool by the -Mrm option.
2682
2c7db3f5
PH
268318. New variables $sender_verify_failure and $recipient_verify_failure contain
2684 information about exactly what failed.
2685
3d235903
PH
268619. Added -dd to debug only the daemon process.
2687
7c7ad977
PH
268820. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2689 handles timeouts, both on the server side and network timeouts. Renamed the
2690 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2691
981756db
PH
269221. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2693 It is now set to "smtps".
2694
d4eb88df
PH
269522. $host_address is now set to the target address during the checking of
2696 ignore_target_hosts.
2697
269823. When checking ignore_target_hosts for an ipliteral router, no host name was
2699 being passed; this would have caused $sender_host_name to have been used if
2700 matching the list had actually called for a host name (not very likely,
2701 since this list is usually IP addresses). A host name is now passed as
2702 "[x.x.x.x]".
2703
7d468ab8
PH
270424. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2705 code that specifies a non-restarting handler (typically sigaction() in
2706 modern systems) in an attempt to fix a rare and obscure crash bug.
2707
270825. Narrowed the window for a race in the daemon that could cause it to ignore
2709 SIGCHLD signals. This is not a major problem, because they are used only to
2710 wake it up if nothing else does.
2711
62c0818f
PH
271226. A malformed maildirsize file could cause Exim to calculate negative values
2713 for the mailbox size or file count. Odd effects could occur as a result.
2714 The maildirsize information is now recalculated if the size or filecount
2715 end up negative.
2716
26034054
PH
271727. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2718 support for a long time. Removed HAVE_SYS_VFS_H.
2719
af66f652
PH
272028. Installed the latest version of exipick from John Jetmore.
2721
90af77f4
PH
272229. In an address list, if the pattern was not a regular expression, an empty
2723 subject address (from a bounce message) matched only if the pattern was an
2724 empty string. Non-empty patterns were not even tested. This was the wrong
2725 because it is perfectly reasonable to use an empty address as part of a
2726 database query. An empty address is now tested by patterns that are
2727 lookups. However, all the other forms of pattern expect the subject to
2728 contain a local part and a domain, and therefore, for them, an empty
2729 address still always fails if the pattern is not itself empty.
2730
d8ef3577
PH
273130. Exim went into a mad DNS loop when attempting to do a callout where the
2732 host was specified on an smtp transport, and looking it up yielded more
2733 than one IP address.
2734
5cb8cbc6
PH
273531. Re-factored the code for checking spool and log partition space into a
2736 function that finds that data and another that does the check. The former
2737 is then used to implement four new variables: $spool_space, $log_space,
2738 $spool_inodes, and $log_inodes.
2739
14702f5b
PH
274032. The RFC2047 encoding function was originally intended for short strings
2741 such as real names; it was not keeping to the 75-character limit for
2742 encoded words that the RFC imposes. It now respects the limit, and
2743 generates multiple encoded words if necessary. To be on the safe side, I
2744 have increased the buffer size for the ${rfc2047: expansion operator from
2745 1024 to 2048 bytes.
2746
063b1e99
PH
274733. It is now permitted to omit both strings after an "if" condition; if the
2748 condition is true, the result is "true". As before, when the second string
2749 is omitted, a false condition yields an empty string. This makes it less
2750 cumbersome to write custom ACL and router conditions.
2751
652e1b65
PH
275234. Failure to deliver a bounce message always caused it to be frozen, even if
2753 there was an errors_to setting on the router. The errors_to setting is now
2754 respected.
2755
6f0c9a4f
PH
275635. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2757 canonical form (fully expanded) before being placed in
2758 $sender_host_address.
2759
33397d19
PH
276036. The table in the code that translates DNS record types into text (T_A to
2761 "A" for instance) was missing entries for NS and CNAME. It is just possible
2762 that this could have caused confusion if both these types were looked up
2763 for the same domain, because the text type is used as part of Exim's
2764 per-process caching. But the chance of anyone hitting this buglet seems
2765 very small.
2766
7bb56e1f
PH
276737. The dnsdb lookup has been extended in a number of ways.
2768
2769 (1) There is a new type, "zns", which walks up the domain tree until it
2770 finds some nameserver records. It should be used with care.
2771
ea3bc19b
PH
2772 (2) There is a new type, "mxh", which is like "mx" except that it returns
2773 just the host names, not the priorities.
2774
2775 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2776 looked up. The behaviour when one of the lookups defers can be
2777 controlled by a keyword.
7bb56e1f 2778
ea3bc19b 2779 (4) It is now possible to specify the separator character for use when
7bb56e1f 2780 multiple records are returned.
33397d19 2781
0bcb2a0e
PH
278238. The dnslists ACL condition has been extended: it is now possible to supply
2783 a list of IP addresses and/or domains to be looked up in a particular DNS
2784 domain.
2785
2ac0e484
PH
278639. Added log_selector=+queue_time_overall.
2787
4e1fde53
PH
278840. When running the queue in the test harness, wait just a tad after forking a
2789 delivery process, to get repeatability of debugging output.
2790
de365ded
PH
279141. Include certificate and key file names in error message when GnuTLS fails
2792 to set them up, because the GnuTLS error message doesn't include the name
2793 of the failing file when there is a problem reading it.
2794
f05da2e8
PH
279542. Allow both -bf and -bF in the same test run.
2796
d6453af2
PH
279743. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2798
f7b63901
PH
279944. The "Exiscan patch" is now merged into the mainline Exim source.
2800
280145. Sometimes the final signoff response after QUIT could fail to get
2802 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2803 < 0 before doing a fflush(). This bug looks as though it goes back to the
2804 introduction of TLS in release 3.20, but "sometimes" must have been rare
2805 because the tests only now provoked it.
2806
a444213a
PH
280746. Reset the locale to "C" after calling embedded Perl, in case it was changed
2808 (this can affect the format of dates).
2809
0ec020ea
PH
281047. exim_tidydb, when checking for the continued existence of a message for
2811 which it has found a message-specific retry record, was not finding
2812 messages that were in split spool directories. Consequently, it was
2813 deleting retry records that should have stayed in existence.
2814
b1206957
PH
281548. Steve fixed some bugs in eximstats.
2816
281749. The SPA authentication driver was not abandoning authentication and moving
2818 on to the next authenticator when an expansion was forced to fail,
2819 contradicting the general specification for all authenticators. Instead it
2820 was generating a temporary error. It now behaves as specified.
2821
26dd5a95
PH
282250. The default ordering of permitted cipher suites for GnuTLS was pessimal
2823 (the order specifies the preference for clients). The order is now AES256,
2824 AES128, 3DES, ARCFOUR128.
2825
343b2385
PH
282651. Small patch to Sieve code - explicitly set From: when generating an
2827 autoreply.
2828
1c5466b9
PH
282952. Exim crashed if a remote delivery caused a very long error message to be
2830 recorded - for instance if somebody sent an entire SpamAssassin report back
2831 as a large number of 550 error lines. This bug was coincidentally fixed by
2832 increasing the size of one of Exim's internal buffers (big_buffer) that
2833 happened as part of the Exiscan merge. However, to be on the safe side, I
2834 have made the code more robust (and fixed the comments that describe what
2835 is going on).
2836
55ee9ee3
PH
283753. Now that there can be additional text after "Completed" in log lines (if
2838 the queue_time_overall log selector is set), a one-byte patch to exigrep
2839 was needed to allow it to recognize "Completed" as not the last thing in
2840 the line.
2841
d38f8232
PH
284254. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2843 patch that reportedly fixes this has been added. I am not expert enough to
2844 create a test for it. This is what the patch creator wrote:
2845
2846 "I found a little strange behaviour of ldap code when working with
2847 Windows 2003 AD Domain, where users was placed in more than one
2848 Organization Units. When I tried to give exim partial DN, the exit code
2849 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2850 But simultaneously result of request was absolutely normal ldap result,
2851 so I produce this patch..."
2852
3295e65b
PH
2853 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2854 REFERENCE, so I have modified the code to exclude the patch when that macro
2855 is not defined.
2856
7102e136
PH
285755. Some experimental protocols are using DNS PTR records for new purposes. The
2858 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2859 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2860 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2861 CAN-2005-0021
7102e136 2862
3ca0ba97
PH
286356. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2864
c2bcbe20
PH
286557. Double the size of the debug message buffer (to 2048) so that more of very
2866 long debug lines gets shown.
2867
18ce445d
PH
286858. The exicyclog utility now does better if the number of log files to keep
2869 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2870
1f5b4c3d
PH
287159. Two changes related to the smtp_active_hostname option:
2872
2873 (1) $smtp_active_hostname is now available as a variable.
2874 (2) The default for smtp_banner uses $smtp_active_hostname instead
2875 of $primary_hostname.
2876
b975ba52
PH
287760. The host_aton() function is supposed to be passed a string that is known
2878 to be a valid IP address. However, in the case of IPv6 addresses, it was
2879 not checking this. This is a hostage to fortune. Exim now panics and dies
2880 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2881 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2882 components; fortuitously, this particular loophole had already been fixed
2883 by change 4.50/55 above.
2884
2885 If there are any other similar loopholes, the new check in host_aton()
2886 itself should stop them being exploited. The report I received stated that
2887 data on the command line could provoke the exploit when Exim was running as
2888 exim, but did not say which command line option was involved. All I could
2889 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2890 running as the user.
ea3a6f44 2891 CAN-2005-0021
85b87bc2
PH
2892
289361. There was a buffer overflow vulnerability in the SPA authentication code
2894 (which came originally from the Samba project). I have added a test to the
2895 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2896 CAN-2005-0022
b975ba52 2897
17ffcae7
PH
289862. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2899 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2900
d95f9fdb
PH
290163. The daemon start-up calls getloadavg() while still root for those OS that
2902 need the first call to be done as root, but it missed one case: when
2903 deliver_queue_load_max is set with deliver_drop_privilege. This is
2904 necessary for the benefit of the queue runner, because there is no re-exec
2905 when deliver_drop_privilege is set.
2906
86b8287f
PH
290764. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2908 This has been fixed.
2909
60dc5e56
PH
291065. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2911 was in use, was not putting the data itself into the right store pool;
2912 consequently, it could be overwritten for a subsequent message in the same
2913 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2914 the caching.)
2915
533244af
PH
291666. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2917
a5a28604
PH
291867. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2919 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2920 the function were treating the return as a boolean value, which happened to
2921 work because 0=false and not-0=true, but is not correct code.
2922
7e634d24
PH
292368. The host_aton() function was not handling scoped IPv6 addresses (those
2924 with, for example, "%eth0" on the end) correctly.
2925
3e11c26b
PH
292669. Fixed some compiler warnings in acl.c for the bitmaps specified with
2927 negated items (that is, ~something) in unsigned ints. Some compilers
2928 apparently mutter when there is no cast.
2929
6729cf78
PH
293070. If an address verification called from an ACL failed, and did not produce a
2931 user-specific message (i.e. there was only a "system" message), nothing was
2932 put in $acl_verify_message. In this situation, it now puts the system
2933 message there.
2934
00f00ca5
PH
293571. Change 4.23/11 added synchronization checking at the start of an SMTP
2936 session; change 4.31/43 added the unwanted input to the log line - except
2937 that it did not do this in the start of session case. It now does.
2938
c9bdd01c
PH
293972. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2940 This is wrong and can cause the other end to generate a synchronization
2941 error if it is another Exim or anything else that does the synchronization
2942 check. A QUIT command is no longer sent after a timeout.
2943
d43194df
PH
294473. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2945 during host lookups.
2946
fe5b5d0b
PH
294774. The defer_ok option of callout verification was not working if it was used
2948 when verifying addresses in header lines, that is, for this case:
2949
2950 verify = header_sender/callout=defer_ok
2951
76a2d7ba
PH
295275. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2953 those file descriptors could be used for SMTP connections. If anything
2954 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2955 could be sent to the SMTP client, causing chaos. The daemon now opens
2956 stdin, stdout, and stderr to /dev/null when it puts itself into the
2957 background.
2958
295976. Arrange for output from Perl's "warn" command to be written to Exim's main
2960 log by default. The user can override this with suitable Perl magic.
2961
04f7d5b9
PH
296277. The use of log_message on a "discard" ACL verb, which is supposed to add to
2963 the log message when discard triggers, was not working for the DATA ACL or
2964 for the non-SMTP ACL.
2965
bc60667e
PH
296678. Error message wording change in sieve.c.
2967
bb6e88ff
PH
296879. If smtp_accept_max_per_host was set, the number of connections could be
2969 restricted to fewer than expected, because the daemon was trying to set up
2970 a new connection before checking whether the processes handling previous
2971 connections had finished. The check for completed processes is now done
2972 earlier. On busy systems, this bug wouldn't be noticed because something
2973 else would have woken the daemon, and it would have reaped the completed
2974 process earlier.
2975
1e70f85b
PH
297680. If a message was submitted locally by a user whose login name contained one
2977 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2978 It caused a spool format error. I have fixed the spool reading code. A
2979 related problem was that the "from" clause in the Received: line became
2980 illegal because of the space(s). It is now covered by ${quote_local_part.
2981
298281. Included the latest eximstats from Steve (adds average sizes to HTML Top
2983 tables).
2984
4e01f9d6
PH
298582. Updated OS/Makefile-AIX as per message from Mike Meredith.
2986
1ee1cef2
PH
298783. Patch from Sieve maintainer to fix unterminated string problem in
2988 "vacation" handling.
2989
6e2b4ccc
PH
299084. Some minor changes to the Linux configuration files to help with other
2991 OS variants using glibc.
2992
8e669ac1
PH
299385. One more patch for Sieve to update vacation handling to latest spec.
2994
495ae4b0 2995
bbe902f0
PH
2996----------------------------------------------------
2997See the note above about the 4.44 and 4.50 releases.
2998----------------------------------------------------
2999
3000
3001Exim version 4.44
3002-----------------
3003
3004 1. Change 4.43/35 introduced a bug that caused file counts to be
3005 incorrectly computed when quota_filecount was set in an appendfile
3006 transport
3007
3008 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3009 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3010 place.
3011
3012 3. Give more explanation in the error message when the command for a transport
3013 filter fails to execute.
3014
3015 4. There are several places where Exim runs a non-Exim command in a
3016 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3017 was being done only for the command run by the queryprogram router. It is
3018 now done for all such subprocesses. The other cases are: ${run, transport
3019 filters, and the commands run by the lmtp and pipe transports.
3020
3021 5. Some older OS have a limit of 256 on the maximum number of file
3022 descriptors. Exim was using setrlimit() to set 1000 as a large value
3023 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3024 systems. I've change it so that if it can't get 1000, it tries for 256.
3025
3026 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3027 was an oversight, and furthermore, ever since the addition of extra
3028 controls (e.g. 4.43/32), the checks on when to allow different forms of
3029 "control" were broken. There should now be diagnostics for all cases when a
3030 control that does not make sense is encountered.
3031
3032 7. $recipients is now available in the predata ACL (oversight).
3033
3034 8. Tidy the search cache before the fork to do a delivery from a message
3035 received from the command line. Otherwise the child will trigger a lookup
3036 failure and thereby defer the delivery if it tries to use (for example) a
3037 cached ldap connection that the parent has called unbind on.
3038
3039 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3040 of $address_data from the recipient verification was clobbered by the
3041 sender verification.
3042
304310. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3044 was its contents. (It was OK if the option was not defined at all.)
3045
304611. A "Completed" log line is now written for messages that are removed from
3047 the spool by the -Mrm option.
3048
304912. $host_address is now set to the target address during the checking of
3050 ignore_target_hosts.
3051
305213. When checking ignore_target_hosts for an ipliteral router, no host name was
3053 being passed; this would have caused $sender_host_name to have been used if
3054 matching the list had actually called for a host name (not very likely,
3055 since this list is usually IP addresses). A host name is now passed as
3056 "[x.x.x.x]".
3057
305814. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3059 code that specifies a non-restarting handler (typically sigaction() in
3060 modern systems) in an attempt to fix a rare and obscure crash bug.
3061
306215. Narrowed the window for a race in the daemon that could cause it to ignore
3063 SIGCHLD signals. This is not a major problem, because they are used only to
3064 wake it up if nothing else does.
3065
306616. A malformed maildirsize file could cause Exim to calculate negative values
3067 for the mailbox size or file count. Odd effects could occur as a result.
3068 The maildirsize information is now recalculated if the size or filecount
3069 end up negative.
3070
307117. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3072 support for a long time. Removed HAVE_SYS_VFS_H.
3073
ea3a6f44 307418. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3075
307619. Allow an empty sender to be matched against a lookup in an address list.
3077 Previously the only cases considered were a regular expression, or an
3078 empty pattern.
3079
308020. Exim went into a mad DNS lookup loop when doing a callout where the
3081 host was specified on the transport, if the DNS lookup yielded more than
3082 one IP address.
3083
ea3a6f44
NM
308421. The RFC2047 encoding function was originally intended for short strings
3085 such as real names; it was not keeping to the 75-character limit for
3086 encoded words that the RFC imposes. It now respects the limit, and
3087 generates multiple encoded words if necessary. To be on the safe side, I
3088 have increased the buffer size for the ${rfc2047: expansion operator from
3089 1024 to 2048 bytes.
bbe902f0 3090
ea3a6f44
NM
309122. Failure to deliver a bounce message always caused it to be frozen, even if
3092 there was an errors_to setting on the router. The errors_to setting is now
3093 respected.
bbe902f0
PH
3094
309523. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3096 canonical form (fully expanded) before being placed in
3097 $sender_host_address.
3098
309924. Updated eximstats to version 1.33
3100
ea3a6f44
NM
310125. Include certificate and key file names in error message when GnuTLS fails
3102 to set them up, because the GnuTLS error message doesn't include the name
3103 of the failing file when there is a problem reading it.
bbe902f0
PH
3104
310526. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3106 As per change 25.
bbe902f0 3107
ea3a6f44
NM
310827. Reset the locale to "C" after calling embedded Perl, in case it was changed
3109 (this can affect the format of dates).
bbe902f0 3110
ea3a6f44
NM
311128. exim_tidydb, when checking for the continued existence of a message for
3112 which it has found a message-specific retry record, was not finding
3113 messages that were in split spool directories. Consequently, it was
3114 deleting retry records that should have stayed in existence.
bbe902f0
PH
3115
311629. eximstats updated to version 1.35
3117 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3118 1.35 - bugfix such that pie charts by volume are generated correctly
3119
ea3a6f44
NM
312030. The SPA authentication driver was not abandoning authentication and moving
3121 on to the next authenticator when an expansion was forced to fail,
3122 contradicting the general specification for all authenticators. Instead it
3123 was generating a temporary error. It now behaves as specified.
bbe902f0 3124
ea3a6f44
NM
312531. The default ordering of permitted cipher suites for GnuTLS was pessimal
3126 (the order specifies the preference for clients). The order is now AES256,
3127 AES128, 3DES, ARCFOUR128.
bbe902f0 3128
ea3a6f44
NM
312931. Small patch to Sieve code - explicitly set From: when generating an
3130 autoreply.
bbe902f0 3131
ea3a6f44
NM
313232. Exim crashed if a remote delivery caused a very long error message to be
3133 recorded - for instance if somebody sent an entire SpamAssassin report back
3134 as a large number of 550 error lines. This bug was coincidentally fixed by
3135 increasing the size of one of Exim's internal buffers (big_buffer) that
3136 happened as part of the Exiscan merge. However, to be on the safe side, I
3137 have made the code more robust (and fixed the comments that describe what
3138 is going on).
bbe902f0 3139
ea3a6f44
NM
314033. Some experimental protocols are using DNS PTR records for new purposes. The
3141 keys for these records are domain names, not reversed IP addresses. The
3142 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3143 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3144 CAN-2005-0021
3145
ea3a6f44
NM
314634. The host_aton() function is supposed to be passed a string that is known
3147 to be a valid IP address. However, in the case of IPv6 addresses, it was
3148 not checking this. This is a hostage to fortune. Exim now panics and dies
3149 if the condition is not met. A case was found where this could be provoked
3150 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3151 components; fortuitously, this particular loophole had already been fixed
3152 by change 4.50/55 or 4.44/33 above.
3153
3154 If there are any other similar loopholes, the new check in host_aton()
3155 itself should stop them being exploited. The report I received stated that
3156 data on the command line could provoke the exploit when Exim was running as
3157 exim, but did not say which command line option was involved. All I could
3158 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3159 running as the user.
bbe902f0
PH
3160 CAN-2005-0021
3161
ea3a6f44
NM
316235. There was a buffer overflow vulnerability in the SPA authentication code
3163 (which came originally from the Samba project). I have added a test to the
3164 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3165 CAN-2005-0022
3166
ea3a6f44
NM
316736. The daemon start-up calls getloadavg() while still root for those OS that
3168 need the first call to be done as root, but it missed one case: when
3169 deliver_queue_load_max is set with deliver_drop_privilege. This is
3170 necessary for the benefit of the queue runner, because there is no re-exec
3171 when deliver_drop_privilege is set.
bbe902f0 3172
ea3a6f44
NM
317337. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3174 was in use, was not putting the data itself into the right store pool;
3175 consequently, it could be overwritten for a subsequent message in the same
3176 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3177 the caching.)
bbe902f0 3178
ea3a6f44
NM
317938. Sometimes the final signoff response after QUIT could fail to get
3180 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3181 < 0 before doing a fflush(). This bug looks as though it goes back to the
3182 introduction of TLS in release 3.20, but "sometimes" must have been rare
3183 because the tests only now provoked it.
bbe902f0
PH
3184
3185
495ae4b0
PH
3186Exim version 4.43
3187-----------------
3188
3189 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3190 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3191 Now it returns an integer. A number of calls were still expecting a T/F
3192 return. Fortuitously, in all cases, the tests worked in OK situations,
3193 which is the norm. However, things would have gone wrong on any write
3194 failures on the smtp file descriptor. This function is used when sending
3195 messages over SMTP and also when doing verify callouts.
3196
3197 2. When Exim is called to do synchronous delivery of a locally submitted
3198 message (the -odf or -odi options), it no longer closes stderr before doing
3199 the delivery.
3200
3201 3. Implemented the mua_wrapper option.
3202
3203 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3204
3205 5. Implemented the functions header_remove(), header_testname(),
3206 header_add_at_position(), and receive_remove_recipient(), and exported them
3207 to local_scan().
3208
3209 6. If an ACL "warn" statement specified the addition of headers, Exim already
3210 inserted X-ACL-Warn: at the start if there was no header name. However, it
3211 was not making this test for the second and subsequent header lines if
3212 there were newlines in the string. This meant that an invalid header could
3213 be inserted if Exim was badly configured.
3214
3215 7. Allow an ACL "warn" statement to add header lines at the start or after all
3216 the Received: headers, as well as at the end.
3217
3218 8. Added the rcpt_4xx retry error code.
3219
3220 9. Added postmaster_mailfrom=xxx to callout verification option.
3221
322210. Added mailfrom=xxxx to the callout verification option, for verify=
3223 header_sender only.
3224
322511. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3226 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3227
322812. Inserted some casts to stop certain compilers warning when using pointer
3229 differences as field lengths or precisions in printf-type calls (mostly
3230 affecting debugging statements).
3231
323213. Added optional readline() support for -be (dynamically loaded).
3233
323414. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3235 same clock tick as a message's arrival, so that its received time was the
3236 same as the "first fail" time on the retry record, and that message
3237 remained on the queue past the ultimate address timeout, every queue runner
3238 would try a delivery (because it was past the ultimate address timeout) but
3239 after another failure, the ultimate address timeout, which should have then
3240 bounced the address, did not kick in. This was a "< instead of <=" error;
3241 in most cases the first failure would have been in the next clock tick
3242 after the received time, and all would be well.
3243
324415. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3245 being recognized when the domain list was tested by the match_domain
3246 condition in an expansion string.
3247
324816. Added the ${str2b64: operator.
3249
325017. Exim was always calling setrlimit() to set a large limit for the number of
3251 processes, without checking whether the existing limit was already
3252 adequate. (It did check for the limit on file descriptors.) Furthermore,
3253 errors from getrlimit() and setrlimit() were being ignored. Now they are
3254 logged to the main and panic logs, but Exim does carry on, to try to do its
3255 job under whatever limits there are.
3256
325718. Imported PCRE 5.0.
3258
325919. Trivial typo in log message " temporarily refused connection" (the leading
3260 space).
3261
326220. If the log selector return_path_on_delivery was set and an address was
3263 redirected to /dev/null, the delivery process crashed because it assumed
3264 that a return path would always be set for a "successful" delivery. In this
3265 case, the whole delivery is bypassed as an optimization, and therefore no
3266 return path is set.
3267
326821. Internal re-arrangement: the function for sending a challenge and reading
3269 a response while authentication was assuming a zero-terminated challenge
3270 string. It's now changed to take a pointer and a length, to allow for
3271 binary data in such strings.
3272
327322. Added the cyrus_sasl authenticator (code supplied by MBM).
3274
327523. Exim was not respecting finduser_retries when seeking the login of the
3276 uid under which it was called; it was always trying 10 times. (The default
3277 setting of finduser_retries is zero.) Also, it was sleeping after the final
3278 failure, which is pointless.
3279
328024. Implemented tls_on_connect_ports.
3281
328225. Implemented acl_smtp_predata.
3283
328426. If the domain in control=submission is set empty, Exim assumes that the
3285 authenticated id is a complete email address when it generates From: or
3286 Sender: header lines.
3287
328827. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3289 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3290 chown and chgrp in /bin and hostname in /usr/bin.
3291
329228. Exim was keeping the "process log" file open after each use, just as it
3293 does for the main log. This opens the possibility of it remaining open for
3294 long periods when the USR1 signal hits a daemon. Occasional processlog
3295 errors were reported, that could have been caused by this. Anyway, it seems
3296 much more sensible not to leave this file open at all, so that is what now
3297 happens.
3298
329929. The long-running daemon process does not normally write to the log once it
3300 has entered its main loop, and it closes the log before doing so. This is
3301 so that log files can straightforwardly be renamed and moved. However,
3302 there are a couple of unusual error situations where the daemon does write
3303 log entries, and I had neglected to close the log afterwards.
3304
330530. The text of an SMTP error response that was received during a remote
3306 delivery was being truncated at 512 bytes. This is too short for some of
3307 the long messages that one sometimes sees. I've increased the limit to
3308 1024.
3309
331031. It is now possible to make retry rules that apply only when a message has a
3311 specific sender, in particular, an empty sender.
3312
331332. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3314 it possible to be selective about when SMTP synchronization is enforced.
3315
331633. Added "control = caseful_local_part" and "control = "caselower_local_part".
3317
331832. Implemented hosts_connection_nolog.
3319
332033. Added an ACL for QUIT.
3321
332234. Setting "delay_warning=" to disable warnings was not working; it gave a
3323 syntax error.
3324
332535. Added mailbox_size and mailbox_filecount to appendfile.
3326
332736. Added control = no_multiline_responses to ACLs.
3328
332937. There was a bug in the logic of the code that waits for the clock to tick
3330 in the case where the clock went backwards by a substantial amount such
3331 that the microsecond fraction of "now" was more than the microsecond
3332 fraction of "then" (but the whole seconds number was less).
3333
333438. Added support for the libradius Radius client library this is found on
3335 FreeBSD (previously only the radiusclient library was supported).
3336
3337
3338Exim version 4.42
3339-----------------
3340
3341 1. When certain lookups returned multiple values in the form name=value, the
3342 quoting of the values was not always being done properly. Specifically:
3343 (a) If the value started with a double quote, but contained no whitespace,
3344 it was not quoted.
3345 (b) If the value contained whitespace other than a space character (i.e.
3346 tabs or newlines or carriage returns) it was not quoted.
3347 This fix has been applied to the mysql and pgsql lookups by writing a
3348 separate quoting function and calling it from the lookup code. The fix
3349 should probably also be applied to nisplus, ibase and oracle lookups, but
3350 since I cannot test any of those, I have not disturbed their existing code.
3351
3352 2. A hit in the callout cache for a specific address caused a log line with no
3353 reason for rejecting RCPT. Now it says "Previous (cached) callout
3354 verification failure".
3355
3356 3. There was an off-by-one bug in the queryprogram router. An over-long
3357 return line was truncated at 256 instead of 255 characters, thereby
3358 overflowing its buffer with the terminating zero. As well as fixing this, I
3359 have increased the buffer size to 1024 (and made a note to document this).
3360
3361 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3362 when Exim is waiting for an SMTP response from a remote server, Exim
3363 restarts its select() call on the socket, thereby resetting its timeout.
3364 This is not a problem when such interrupts are rare. Somebody set up a cron
3365 job to run exiwhat every 2 minutes, which is less than the normal select()
3366 timeout (5 or 10 minutes). This meant that the select() timeout never
3367 kicked in because it was always reset. I have fixed this by comparing the
3368 time when an interrupt arrives with the time at the start of the first call
3369 to select(). If more time than the timeout has elapsed, the interrupt is
3370 treated as a timeout.
3371
3372 5. Some internal re-factoring in preparation for the addition of Sieve
3373 extensions (by MH). In particular, the "personal" test is moved to a
3374 separate function, and given an option for scanning Cc: and Bcc: (which is
3375 not set for Exim filters).
3376
3377 6. When Exim created an email address using the login of the caller as the
3378 local part (e.g. when creating a From: or Sender: header line), it was not
3379 quoting the local part when it contained special characters such as @.
3380
3381 7. Installed new OpenBSD configuration files.
3382
3383 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3384 try to make them clearer.
3385
3386 9. Callout options, other than the timeout value, were being ignored when
3387 verifying sender addresses in header lines. For example, when using
3388
3389 verify = header_sender/callout=no_cache
3390
3391 the cache was (incorrectly) being used.
3392
339310. Added a missing instance of ${EXE} to the exim_install script; this affects
3394 only the Cygwin environment.
3395
339611. When return_path_on_delivery was set as a log selector, if different remote
3397 addresses in the same message used different return paths and parallel
3398 remote delivery occurred, the wrong values would sometimes be logged.
3399 (Whenever a remote delivery process finished, the return path value from
3400 the most recently started remote delivery process was logged.)
3401
340212. RFC 3848 specifies standard names for the "with" phrase in Received: header
3403 lines when AUTH and/or TLS are in use. This is the "received protocol"
3404 field. Exim used to use "asmtp" for authenticated SMTP, without any
3405 indication (in the protocol name) for TLS use. Now it follows the RFC and
3406 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3407 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3408 names appear in log lines as well as in Received: header lines.
3409
341013. Installed MH's patches for Sieve to add the "copy" and "vacation"
3411 extensions, and comparison tests, and to fix some bugs.
3412
341314. Changes to the "personal" filter test:
3414
3415 (1) The test was buggy in that it was just doing the equivalent of
3416 "contains" tests on header lines. For example, if a user's address was
3417 anne@some.where, the "personal" test would incorrectly be true for
3418
3419 To: susanne@some.where
3420
3421 This test is now done by extracting each address from the header in turn,
3422 and checking the entire address. Other tests that are part of "personal"
3423 are now done using regular expressions (for example, to check local parts
3424 of addresses in From: header lines).
3425
3426 (2) The list of non-personal local parts in From: addresses has been
3427 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3428 taken from the Sieve specification recommendations.
3429
3430 (3) If the message contains any header line starting with "List-" it is
3431 treated as non-personal.
3432
3433 (4) The test for "circular" in the Subject: header line has been removed
3434 because it now seems ill-conceived.
3435
343615. Minor typos in src/EDITME comments corrected.
3437
343816. Installed latest exipick from John Jetmore.
3439
344017. If headers_add on a router specified a text string that was too long for
3441 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3442 of string_sprintf() is now avoided.
3443