Version reporting & module ABI change.
[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
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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
8c07b69f 35
97fd1e48 36Exim version 4.73
ed7f7860 37-----------------
97fd1e48
PP
38
39PP/01 Date: & Message-Id: revert to normally being appended to a message,
40 only prepend for the Resent-* case. Fixes regression introduced in
41 Exim 4.70 by NM/22 for Bugzilla 607.
42
6901c596
PP
43PP/02 Include check_rfc2047_length in configure.default because we're seeing
44 increasing numbers of administrators be bitten by this.
45
a8c8d6b5
JJ
46JJ/01 Added DISABLE_DKIM and comment to src/EDITME
47
77bb000f
PP
48PP/03 Bugzilla 994: added openssl_options main configuration option.
49
a29e5231
PP
50PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
51
ec5a0394 52PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 53
55c75993
PP
54PP/06 Adjust NTLM authentication to handle SASL Initial Response.
55
453a6645 56PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
57 without a peer certificate, leading to a segfault because of an
58 assumption that peers always have certificates. Be a little more
453a6645
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59 paranoid. Problem reported by Martin Tscholak.
60
8544e77a
PP
61PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
62 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
63 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
64 CL also introduces -bmalware, various -d+acl logging additions and
65 more caution in buffer sizes.
8544e77a 66
83e029d5
PP
67PP/09 Implemented reverse_ip expansion operator.
68
ed7f7860
PP
69PP/10 Bugzilla 937: provide a "debug" ACL control.
70
7d9f747b
PP
71PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
72
4b2241d2
PP
73PP/12 Bugzilla 973: Implement --version.
74
10385c15
PP
75PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
76
dbc4b90d
PP
77PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
78
532be449
PP
79PP/15 Bugzilla 816: support multiple condition rules on Routers.
80
6a8de854 81PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
82 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
83 ignore trailing whitespace.
6a8de854 84
5dc43717
JJ
85JJ/02 prevent non-panic DKIM error from being sent to paniclog
86
87JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
88 "exim" to be used
55c75993 89
3346ab01
PP
90PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
91 Notification from Dr Andrew Aitchison.
92
491fab4c
PP
93PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
94 ExtendedDetectionInfo response format.
95 Notification from John Horne.
96
13eb9497
PP
97PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
98 compatible.
99
100PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
101 XSL and documented dependency on system catalogs, with examples of how
102 it normally works.
103
7f36d675
DW
104DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
105 access.
106
c1d94452
DW
107DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
108 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
109 configuration file which is writeable by the Exim user or group.
110
e2f5dc15
DW
111DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
112 of configuration files to cover files specified with the -C option if
113 they are going to be used with root privileges, not just the default
114 configuration file.
115
cd25e41d
DW
116DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
117 option (effectively making it always true).
118
261dc43e
DW
119DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
120 files to be used while preserving root privileges.
121
fa32850b
DW
122DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
123 that rogue child processes cannot use them.
124
79d4bc3d
PP
125PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
126 run-time user, instead of root.
127
2cfd3221
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128PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
129 Exim run-time user without dropping privileges.
130
fb08281f
DW
131DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
132 result string, instead of calling string_vformat() twice with the same
133 arguments.
3346ab01 134
74935b98
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135DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
136 for other users. Others should always drop root privileges if they use
137 -C on the command line, even for a whitelisted configure file.
138
90b6341f
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139DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
140
57730b52
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141NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
142
66581d1e 143
465e92cf
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144Exim version 4.72
145-----------------
146
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147JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
148 $data_path, and $header_path variables; fixed documentation bugs and
149 typos
465e92cf 150
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151JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
152 exipick to access non-standard spools, including the "frozen" queue
153 (Finput)
edae0343 154
9bd3e22c
NM
155NM/01 Bugzilla 965: Support mysql stored procedures.
156 Patch from Alain Williams
157
bb576ff7
NM
158NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
159
5a1a5845
NM
160NM/03 Bugzilla 955: Documentation fix for max_rcpts.
161 Patch from Andreas Metzler
162
981a9fad
NM
163NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
164 Patch from Kirill Miazine
165
7fc497ee
NM
166NM/05 Bugzilla 671: Added umask to procmail example.
167
1a41defa
JJ
168JJ/03 installed exipick 20100323.0, fixing doc bug
169
a466095c 170NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 171 directory. Notification and patch from Dan Rosenberg.
a466095c 172
94a6bd0b
NM
173TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
174
175TK/02 Improve log output when DKIM signing operation fails.
176
177MH/01 Treat the transport option dkim_domain as a colon separated
178 list, not as a single string, and sign the message with each element,
179 omitting multiple occurences of the same signer.
180
c1b141a8
NM
181NM/07 Null terminate DKIM strings, Null initialise DKIM variable
182 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 183
b26eacf1 184NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
185 Patch by Simon Arlott
186
179c5980 187PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 188 MBX locking. Notification from Dan Rosenberg.
179c5980 189
9bd3e22c 190
7c6d71af
NM
191Exim version 4.71
192-----------------
193
7d9f747b 194TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 195
f013fb92
NM
196NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
197
0eb8eedd
NM
198NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
199
663ee6d9
NM
200NM/03 Bugzilla 847: Enable DNSDB lookup by default.
201
177ebd9b
NM
202NM/04 Bugzilla 915: Flag broken perl installation during build.
203
7c6d71af 204
210f147e
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205Exim version 4.70
206-----------------
207
cdd3bb85 208TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 209 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
210
211TK/02 Write list of recipients to X-Envelope-Sender header when building
212 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 213 Hirsch).
cdd3bb85
TK
214
215TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
216 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 217 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
218
219TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
220 by Mark Daniel Reidel <mr@df.eu>.
221
210f147e
NM
222NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
223 When building exim an external PCRE library is now needed -
224 PCRE is a system library on the majority of modern systems.
225 See entry on PCRE_LIBS in EDITME file.
226
deafd5b3
NM
227NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
228 conversation. Added nologin parameter to request.
7d9f747b 229 Patch contributed by Kirill Miazine.
deafd5b3 230
089793a4
TF
231TF/01 Do not log submission mode rewrites if they do not change the address.
232
5f16ca82
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233TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
234
dae9d94e 235NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 236 log files in place. Contributed by Roberto Lima.
dae9d94e 237
7d9f747b 238NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 239
06864c44
TF
240TF/03 Bugzilla 615: When checking the local_parts router precondition
241 after a local_part_suffix or local_part_prefix option, Exim now
242 does not use the address's named list lookup cache, since this
243 contains cached lookups for the whole local part.
244
65a7d8c3 245NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 246 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 247
23510047 248TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 249
7d9f747b 250NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 251
7d8eec3a 252NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 253 Patch provided by Jan Srzednicki.
6c588e74 254
89dec7b6
TF
255TF/05 Leading white space used to be stripped from $spam_report which
256 wrecked the formatting. Now it is preserved.
5f28a6e8 257
a99de90c
TF
258TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
259 that they are available at delivery time.
260
e2803e40
TF
261TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
262
7199e1ee
TF
263TF/08 TLS error reporting now respects the incoming_interface and
264 incoming_port log selectors.
265
e276e04b
TF
266TF/09 Produce a more useful error message if an SMTP transport's hosts
267 setting expands to an empty string.
268
ce552449 269NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 270 Patch provided by Phil Pennock.
ce552449 271
e765a0f1 272NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 273 Patch provided by Richard Godbee.
e765a0f1 274
4f054c63 275NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 276 acl_smtp_notquit, added index entry.
4f054c63 277
7d9f747b
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278NM/09 Bugzilla 787: Potential buffer overflow in string_format.
279 Patch provided by Eugene Bujak.
24c929a2 280
7d9f747b
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281NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
282 accept(). Patch provided by Maxim Dounin.
cf73943b 283
b52bc06e 284NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 285 Patch provided by Phil Pennock.
b52bc06e 286
447de4b0
NM
287NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
288
4c69d561 289NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 290 Patch provided by Brad "anomie" Jorsch.
4c69d561 291
d5c39246 292NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 293 Patch provided by Dean Brooks.
9b989985 294
0b23848a
TK
295TK/05 Add native DKIM support (does not depend on external libraries).
296
8f3414a1 297NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 298 Patch provided by Graeme Fowler.
e2aacdfd 299
fb6f955d
NM
300NM/16 Bugzilla 851: Documentation example syntax fix.
301
302NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 303
7d9f747b
PP
304NM/18 Bugzilla 894: Fix issue with very long lines including comments in
305 lsearch.
dbb0bf41 306
7d9f747b
PP
307NM/19 Bugzilla 745: TLS version reporting.
308 Patch provided by Phil Pennock.
f3766eb5 309
7d9f747b
PP
310NM/20 Bugzilla 167: bool: condition support.
311 Patch provided by Phil Pennock.
36f12725 312
7d9f747b
PP
313NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
314 clients. Patch provided by Phil Pennock.
e6060e2c 315
7d9f747b
PP
316NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
317 Patch provided by Brad "anomie" Jorsch.
5eb690a1 318
7d9f747b
PP
319NM/23 Bugzilla 687: Fix misparses in eximstats.
320 Patch provided by Heiko Schlittermann.
d5c13d66 321
7d9f747b
PP
322NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
323 Patch provided by Heiko Schlittermann.
b2335c0b 324
7d9f747b 325NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 326 plus update to original patch.
f4cd9433 327
7d9f747b 328NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 329
7d9f747b
PP
330NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
331 Patch provided by David Brownlee.
8dc71ab3 332
7d9f747b 333NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 334
7d9f747b 335NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 336
7d9f747b 337NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 338
7d9f747b 339NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 340
17792b53 341NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 342 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 343
7d9f747b
PP
344NM/33 Bugzilla 898: Transport filter timeout fix.
345 Patch by Todd Rinaldo.
52383f8f 346
7d9f747b
PP
347NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
348 Patch by Serge Demonchaux.
5ca6d115 349
7d9f747b
PP
350NM/35 Bugzilla 39: Base64 decode bug fixes.
351 Patch by Jakob Hirsch.
baee9eee 352
7d9f747b 353NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 354
7d9f747b 355NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 356
7d9f747b 357NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 358
7d9f747b 359NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 360
deafd5b3 361
47db1125
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362Exim version 4.69
363-----------------
364
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365TK/01 Add preliminary DKIM support. Currently requires a forked version of
366 ALT-N's libdkim that I have put here:
367 http://duncanthrax.net/exim-experimental/
368
369 Note to Michael Haardt: I had to rename some vars in sieve.c. They
370 were called 'true' and it seems that C99 defines that as a reserved
371 keyword to be used with 'bool' variable types. That means you could
372 not include C99-style headers which use bools without triggering
373 build errors in sieve.c.
374
81ea09ca
NM
375NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
376 as mailq or other aliases. Changed the --help handling significantly
377 to do whats expected. exim_usage() emits usage/help information.
378
f13cddcb
SC
379SC/01 Added the -bylocaldomain option to eximstats.
380
7d9f747b 381NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 382
7d9f747b 383NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 384
7d9f747b 385NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
386
387
eb4c0de6
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388Exim version 4.68
389-----------------
390
391PH/01 Another patch from the Sieve maintainer.
392
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393PH/02 When an IPv6 address is converted to a string for single-key lookup
394 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
395 dots are used instead of colons so that keys in lsearch files need not
396 contain colons. This was done some time before quoting was made available
397 in lsearch files. However, iplsearch files do require colons in IPv6 keys
398 (notated using the quote facility) so as to distinguish them from IPv4
399 keys. This meant that lookups for IP addresses in host lists did not work
400 for iplsearch lookups.
401
402 This has been fixed by arranging for IPv6 addresses to be expressed with
403 colons if the lookup type is iplsearch. This is not incompatible, because
404 previously such lookups could never work.
405
406 The situation is now rather anomolous, since one *can* have colons in
407 ordinary lsearch keys. However, making the change in all cases is
408 incompatible and would probably break a number of configurations.
409
2e30fa9d
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410TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
411 version.
412
0806a9c5
MH
413MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
414 conversion specification without a maximum field width, thereby enabling
415 a rogue spamd server to cause a buffer overflow. While nobody in their
416 right mind would setup Exim to query an untrusted spamd server, an
417 attacker that gains access to a server running spamd could potentially
418 exploit this vulnerability to run arbitrary code as the Exim user.
419
ae276964
TK
420TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
421 $primary_hostname instead of what libspf2 thinks the hosts name is.
422
0f2cbd1b
MH
423MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
424 a directory entry by the name of the lookup key. Previously, if a
425 symlink pointed to a non-existing file or a file in a directory that
426 Exim lacked permissions to read, a lookup for a key matching that
427 symlink would fail. Now it is enough that a matching directory entry
428 exists, symlink or not. (Bugzilla 503.)
429
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PH
430PH/03 The body_linecount and body_zerocount variables are now exported in the
431 local_scan API.
432
93655c46
PH
433PH/04 Added the $dnslist_matched variable.
434
6c512171
PH
435PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
436 This means they are set thereafter only if the connection becomes
437 encrypted.
438
439PH/06 Added the client_condition to authenticators so that some can be skipped
440 by clients under certain conditions.
441
aa6dc513
PH
442PH/07 The error message for a badly-placed control=no_multiline_responses left
443 "_responses" off the end of the name.
444
a96603a0
PH
445PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
446
8f240103
PH
447PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
448 (without spaces) instead of just copying the configuration text.
449
450PH/10 Added the /noupdate option to the ratelimit ACL condition.
451
d677b2f2
PH
452PH/11 Added $max_received_linelength.
453
d52120f2
PH
454PH/12 Added +ignore_defer and +include_defer to host lists.
455
64f2600a
PH
456PH/13 Installed PCRE version 7.2. This needed some changes because of the new
457 way in which PCRE > 7.0 is built.
458
8669f003
PH
459PH/14 Implemented queue_only_load_latch.
460
a4dc33a8
PH
461PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
462 MAIL command. The effect was to mangle the value on 64-bit systems.
463
d6a60c0f
PH
464PH/16 Another patch from the Sieve maintainer.
465
8f128379
PH
466PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
467
8932dffe
PH
468PH/18 If a system quota error occurred while trying to create the file for
469 a maildir delivery, the message "Mailbox is full" was not appended to the
470 bounce if the delivery eventually timed out. Change 4.67/27 below applied
471 only to a quota excession during the actual writing of the file.
d6a60c0f 472
ddea74fa 473PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
474 characters?) which causes problems in log lines. The DN values are now
475 passed through string_printing() before being added to log lines.
476
ddea74fa 477PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
478 and InterBase are left for another time.)
479
ddea74fa
PH
480PH/21 Added message_body_newlines option.
481
ce9f225c
PH
482PH/22 Guard against possible overflow in moan_check_errorcopy().
483
19897d52
PH
484PH/23 POSIX allows open() to be a macro; guard against that.
485
bc64a74d
PH
486PH/24 If the recipient of an error message contained an @ in the local part
487 (suitably quoted, of course), incorrect values were put in $domain and
488 $local_part during the evaluation of errors_copy.
489
eb4c0de6 490
b4ed4da0
PH
491Exim version 4.67
492-----------------
493
22ad45c9
MH
494MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
495 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
496 Jan Srzednicki.
497
b4ed4da0
PH
498PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
499 issue a MAIL command.
500
431b7361
PH
501PH/02 In an ACL statement such as
502
503 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
504
505 if a client was not listed at all, or was listed with a value other than
506 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
507 the condition was not true (as it should be), so access was not denied.
508 The bug was that the ! inversion was incorrectly passed on to the second
509 item. This has been fixed.
510
511PH/03 Added additional dnslists conditions == and =& which are different from
512 = and & when the dns lookup returns more than one IP address.
513
83da1223
PH
514PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
515 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
516
54fc8428
PH
517PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
518 FSYNC, which compiles an option called disable_fsync that allows for
519 bypassing fsync(). The documentation is heavily laced with warnings.
520
34c5e8dd
SC
521SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
522
bbe15da8
PH
523PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
524 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
525 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
526 including adding "make clean"; (3) Added -fPIC when compiling the test
527 dynamically loaded module, to get rid of a warning.
528
0e8a9471
MH
529MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
530 message fails, move_frozen_messages = true and ignore_bounce_errors_after
531 = 0s. The bug is otherwise harmless.
532
f0872424
PH
533PH/07 There was a bug in the dovecot authenticator such that the value of
534 $auth1 could be overwritten, and so not correctly preserved, after a
535 successful authentication. This usually meant that the value preserved by
536 the server_setid option was incorrect.
537
b01dd148
PH
538PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
539
6bf342e1
PH
540PH/09 Installed PCRE release 7.0.
541
273f34d0
PH
542PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
543 run for batched SMTP input. It is now run at the start of every message
544 in the batch. While fixing this I discovered that the process information
545 (output by running exiwhat) was not always getting set for -bs and -bS
546 input. This is fixed, and it now also says "batched" for BSMTP.
547
cf8b11a5
PH
548PH/11 Added control=no_pipelining.
549
41c7c167
PH
550PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
551 patch, slightly modified), and move the expansion of helo_data till after
552 the connection is made in the smtp transport (so it can use these
553 values).
554
9c57cbc0
PH
555PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
556
f3f065bb
PH
557PH/14 Added log_selector = +pid.
558
047bdd8c
PH
559PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
560
0ce9abe6
PH
561PH/16 Add ${if forany and ${if forall.
562
0e22dfd1
PH
563PH/17 Added dsn_from option to vary the From: line in DSNs.
564
4c590bd1
PH
565PH/18 Flush SMTP output before performing a callout, unless control =
566 no_callout_flush is set.
567
09945f1e
PH
568PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
569 was true (the default) a successful delivery failed to delete the retry
570 item, thus causing premature timeout of the address. The bug is now
571 fixed.
572
c51b8e75
PH
573PH/20 Added hosts_avoid_pipelining to the smtp transport.
574
e28326d8
PH
575PH/21 Long custom messages for fakedefer and fakereject are now split up
576 into multiline reponses in the same way that messages for "deny" and
577 other ACL rejections are.
578
75b1493f
PH
579PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
580 with slight modification.
581
7c5214ec
PH
582PH/23 Applied sieve patches from the maintainer "tracking the latest notify
583 draft, changing the syntax and factoring some duplicate code".
584
4311097e
PH
585PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
586 for deliveries of the second and subsequent messages over the same SMTP
587 connection.
588
29f89cad
PH
589PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
590 ${reduce, with only minor "tidies".
591
5e687460
SC
592SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
593
c3611384
PH
594PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
595 expansion side effects.
596
5a11a7b4
PH
597PH/27 When a message times out after an over-quota error from an Exim-imposed
598 quota, the bounce message says "mailbox is full". This message was not
599 being given when it was a system quota that was exceeded. It now should
600 be the same.
601
0e20aff9
MH
602MH/03 Made $recipients available in local_scan(). local_scan() already has
603 better access to the recipient list through recipients_list[], but
604 $recipients can be useful in postmaster-provided expansion strings.
605
ca86f471
PH
606PH/28 The $smtp_command and $smtp_command_argument variables were not correct
607 in the case of a MAIL command with additional options following the
608 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
609 were accidentally chopped off.
610
a14e5636
PH
611PH/29 SMTP synchronization checks are implemented when a command is read -
612 there is a check that no more input is waiting when there shouldn't be
613 any. However, for some commands, a delay in an ACL can mean that it is
614 some time before the response is written. In this time, more input might
615 arrive, invalidly. So now there are extra checks after an ACL has run for
616 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
617 pipelining has not been advertised.
618
ec95d1a6
PH
619PH/30 MH's patch to allow iscntrl() characters to be list separators.
620
42855d71
PH
621PH/31 Unlike :fail:, a custom message specified with :defer: was not being
622 returned in the SMTP response when smtp_return_error_details was false.
623 This has been fixed.
624
57c2c631
PH
625PH/32 Change the Dovecot authenticator to use read() and write() on the socket
626 instead of the C I/O that was originally supplied, because problems were
627 reported on Solaris.
628
58c01c94
PH
629PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
630 Exim which did not show up earlier: it was assuming that a call to
631 SSL_CTX_set_info_callback() might give an error value. In fact, there is
632 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
633 was a macro that became an assignment, so it seemed to work. This has
634 changed to a proper function call with a void return, hence the compile
635 error. Exim's code has been fixed.
636
dee5a20a
PH
637PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
638 cpus.
639
d2ee6114
PH
640PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
641
b2d5182b
PH
642PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
643
79749a79
PH
644PH/37 If a message is not accepted after it has had an id assigned (e.g.
645 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
646 "Completed" line in the log. When some messages of this type were
647 selected by exigrep, they were listed as "not completed". Others were
648 picked up by some special patterns. I have improved the selection
649 criteria to be more general.
79749a79 650
c456d9bb
PH
651PH/38 The host_find_failed option in the manualroute router can now be set
652 to "ignore", to completely ignore a host whose IP address cannot be
653 found. If all hosts are ignored, the behaviour is controlled by the new
654 host_all_ignored option.
655
cd9868ec
PH
656PH/39 In a list of hosts for manualroute, if one item (either because of multi-
657 homing or because of multiple MX records with /mx) generated more than
658 one IP address, and the following item turned out to be the local host,
659 all the secondary addresses of the first item were incorrectly removed
660 from the list, along with the local host and any following hosts (which
661 is what is supposed to happen).
662
ebeaf996
PH
663PH/40 When Exim receives a message, it writes the login name, uid, and gid of
664 whoever called Exim into the -H file. In the case of the daemon it was
665 behaving confusingly. When first started, it used values for whoever
666 started the daemon, but after a SIGHUP it used the Exim user (because it
667 calls itself on a restart). I have changed the code so that it now always
668 uses the Exim user.
669
2679d413
PH
670PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
671 message are rejected with the same error (e.g. no authentication or bad
672 sender address), and a DATA command is nevertheless sent (as can happen
673 with PIPELINING or a stupid MUA), the error message that was given to the
674 RCPT commands is included in the rejection of the DATA command. This is
675 intended to be helpful for MUAs that show only the final error to their
676 users.
677
84024b72
PH
678PH/42 Another patch from the Sieve maintainer.
679
8005d38e
SC
680SC/02 Eximstats - Differentiate between permanent and temporary rejects.
681 Eximstats - Fixed some broken HTML links and added missing column headers
682 (Jez Hancock).
683 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
684 columns for Rejects, Temp Rejects, Ham, and Spam rows.
685
3298c6c6
SC
686SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
687
a43a27c5
PH
688PH/43 Yet another patch from the Sieve maintainer.
689
58eb016e 690PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
691 the response to the final '.' that terminates a message, but only in the
692 case where the client has not sent further data following the '.'
693 (unfortunately, this is allowed). However, in many cases there won't be
694 any further data because there won't be any more messages to send. A call
695 to select() can be used: if it shows that the input is "ready", there is
696 either input waiting, or the socket has been closed. An attempt to read
697 the next input character can distinguish the two cases. Previously, Exim
58eb016e 698 would have sent an OK response which the client would never have see.
563b63fa
PH
699 This could lead to message repetition. This fix should cure that, at
700 least in a lot of common cases.
58eb016e 701
b43a74ea
PH
702PH/45 Do not advertise STARTTLS in response to HELP unless it would be
703 advertised in response to EHLO.
704
b4ed4da0 705
5dd1517f
PH
706Exim version 4.66
707-----------------
708
709PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
710 fixed by 4.65/MH/01 (is this a record?) are fixed:
711
712 (i) An empty string was always treated as zero by the numeric comparison
713 operators. This behaviour has been restored.
714
715 (ii) It is documented that the numeric comparison operators always treat
716 their arguments as decimal numbers. This was broken in that numbers
717 starting with 0 were being interpreted as octal.
718
719 While fixing these problems I realized that there was another issue that
720 hadn't been noticed. Values of message_size_limit (both the global option
721 and the transport option) were treated as octal if they started with 0.
722 The documentation was vague. These values are now always treated as
723 decimal, and I will make that clear in the documentation.
724
725
93cfa765
TK
726Exim version 4.65
727-----------------
728
729TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
730 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
731 versions. (#438)
732
d6066548
MH
733MH/01 Don't check that the operands of numeric comparison operators are
734 integers when their expansion is in "skipping" mode (fixes bug
735 introduced by 4.64-PH/07).
736
4362ff0d
PH
737PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
738 child addresses, Exim now panics and dies. Previously, because the count
739 is held in a short int, deliveries were likely to be lost. As such a
740 large number of recipients for a single message is ridiculous
741 (performance will be very, very poor), I have chosen to impose a limit
742 rather than extend the field.
743
93cfa765 744
944e9e9c
TF
745Exim version 4.64
746-----------------
aa41d2de 747
21d74bd9
TK
748TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
749 leftover -K file (the existence of which was triggered by #402).
750 While we were at it, introduced process PID as part of the -K
751 filename. This should rule out race conditions when creating
752 these files.
753
754TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
755 processing considerably. Previous code took too long for large mails,
756 triggering a timeout which in turn triggers #401.
757
758TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
759 in the DK code in transports.c. sendfile() is not really portable,
760 hence the _LINUX specificness.
944e9e9c
TF
761
762TF/01 In the add_headers option to the mail command in an Exim filter,
763 there was a bug that Exim would claim a syntax error in any
764 header after the first one which had an odd number of characters
765 in the field name.
766
2b1c6e3a
PH
767PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
768 callout verification, Exim cached a "reject" for the entire domain. This
769 is correct for most verifications, but it is not correct for a recipient
770 verification with use_sender or use_postmaster set, because in that case
771 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
772 case of MAIL FROM:<> rejection from other early rejections (e.g.
773 rejection of HELO). When verifying a recipient using a non-null MAIL
774 address, the cache is ignored if it shows MAIL FROM:<> rejection.
775 Whatever the result of the callout, the value of the domain cache is
776 left unchanged (for any other kind of callout, getting as far as trying
777 RCPT means that the domain itself is ok).
778
1f872c80
PH
779PH/02 Tidied a number of unused variable and signed/unsigned warnings that
780 gcc 4.1.1 threw up.
781
782PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
783 manifest itself as EPIPE rather than ECONNECT. When tidying away a
784 session, the daemon ignores ECONNECT errors and logs others; it now
785 ignores EPIPE as well.
786
d203e649
PH
787PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
788 (quoted-printable decoding).
789
cc2ed8f7 790PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 791 later the small subsequent patch to fix an introduced bug.
f951fd57 792
ddfcd446
PH
793PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
794
d45b1de8
PH
795PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
796
797PH/08 An error is now given if message_size_limit is specified negative.
798
38a0a95f 799PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 800 to be given (somewhat) arbitrary names.
38a0a95f 801
a2405d83
JJ
802JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
803 in 4.64-PH/09.
804
805JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
806 miscellaneous code fixes
807
6ea85e9a
PH
808PH/10 Added the log_reject_target ACL modifier to specify where to log
809 rejections.
810
26da7e20
PH
811PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
812 hostname. This is wrong, because it relates to the incoming message (and
813 probably the interface on which it is arriving) and not to the outgoing
814 callout (which could be using a different interface). This has been
815 changed to use the value of the helo_data option from the smtp transport
816 instead - this is what is used when a message is actually being sent. If
817 there is no remote transport (possible with a router that sets up host
818 addresses), $smtp_active_hostname is used.
6ea85e9a 819
14aa5a05 820PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 821 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
822 (a) The code assumed that strncpy() returns a negative number on buffer
823 overflow, which isn't the case. Replaced with Exim's string_format()
824 function.
825 (b) There were several signed/unsigned issues. I just did the minimum
826 hacking in of casts. There is scope for a larger refactoring.
827 (c) The code used strcasecmp() which is not a standard C function.
828 Replaced with Exim's strcmpic() function.
829 (d) The code set only $1; it now sets $auth1 as well.
830 (e) A simple test gave the error "authentication client didn't specify
831 service in request". It would seem that Dovecot has changed its
832 interface. Fortunately there's a specification; I followed it and
833 changed what the client sends and it appears to be working now.
834
ff75a1f7
PH
835PH/13 Added $message_headers_raw to provide the headers without RFC 2047
836 decoding.
837
e6f6568e
PH
838PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
839 address A is aliased to B and C, where B exists and C does not. Without
840 -v the output is "A verified" because verification stops after a
841 successful redirection if more than one address is generated. However,
842 with -v the child addresses are also verified. Exim was outputting "A
843 failed to verify" and then showing the successful verification for C,
844 with its parentage. It now outputs "B failed to verify", showing B's
845 parentage before showing the successful verification of C.
846
d6f6e0dc
PH
847PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
848 look up a TXT record in a specific list after matching in a combined
849 list.
850
322050c2
PH
851PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
852 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
853 they consult the DNS. I had assumed they would set it the way they
854 wanted; and indeed my experiments on Linux seem to show that in some
855 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
856 To be on the safe side, however, I have now made the interface to
857 host_find_byname() similar to host_find_bydns(), with an argument
858 containing the DNS resolver options. The host_find_byname() function now
859 sets these options at its start, just as host_find_bydns() does. The smtp
860 transport options dns_qualify_single and dns_search_parents are passed to
861 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
862 of host_find_byname() use the default settings of RES_DEFNAMES
863 (qualify_single) but not RES_DNSRCH (search_parents).
864
08955dd3
PH
865PH/17 Applied (a modified version of) Nico Erfurth's patch to make
866 spool_read_header() do less string testing, by means of a preliminary
867 switch on the second character of optional "-foo" lines. (This is
868 overdue, caused by the large number of possibilities that now exist.
869 Originally there were few.) While I was there, I also converted the
870 str(n)cmp tests so they don't re-test the leading "-" and the first
871 character, in the hope this might squeeze out yet more improvement.
872
1eccaa59
PH
873PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
874 flag allowing group syntax was set by the header_syntax check but not
875 turned off, possible causing trouble later; (2) The flag was not being
876 set at all for the header_verify test, causing "group"-style headers to
877 be rejected. I have now set it in this case, and also caused header_
878 verify to ignore an empty address taken from a group. While doing this, I
879 came across some other cases where the code for allowing group syntax
880 while scanning a header line wasn't quite right (mostly, not resetting
881 the flag correctly in the right place). These bugs could have caused
882 trouble for malformed header lines. I hope it is now all correct.
883
602e59e5
PH
884PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
885 with the "reply" argument non-NULL. The code, however (which originally
886 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
887 but it didn't always do it. This confused somebody who was copying the
888 code for some other use. I have removed all the tests.
889
411ef850
PH
890PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
891 feature that was used to support insecure browsers during the U.S. crypto
892 embargo. It requires special client support, and Exim is probably the
893 only MTA that supported it -- and would never use it because real RSA is
894 always available. This code has been removed, because it had the bad
895 effect of slowing Exim down by computing (never used) parameters for the
896 RSA_EXPORT functionality.
897
7befa435
PH
898PH/21 On the advice of Timo Sirainen, added a check to the dovecot
899 authenticator to fail if there's a tab character in the incoming data
900 (there should never be unless someone is messing about, as it's supposed
901 to be base64-encoded). Also added, on Timo's advice, the "secured" option
902 if the connection is using TLS or if the remote IP is the same as the
903 local IP, and the "valid-client-cert option" if a client certificate has
904 been verified.
905
48da4259 906PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
907 authenticators. This can be used for authorization after authentication
908 succeeds. (In the case of plaintext, it servers for both authentication
909 and authorization.)
910
48da4259
PH
911PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
912 if any retry times were supplied.
913
d1d5595c
PH
914PH/24 Exim crashed if verify=helo was activated during an incoming -bs
915 connection, where there is no client IP address to check. In this
916 situation, the verify now always succeeds.
917
0ef732d9
PH
918PH/25 Applied John Jetmore's -Mset patch.
919
328895cc
PH
920PH/26 Added -bem to be like -Mset, but loading a message from a file.
921
fd700877
PH
922PH/27 In a string expansion for a processed (not raw) header when multiple
923 headers of the same name were present, leading whitespace was being
924 removed from all of them, but trailing whitespace was being removed only
925 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
926 before concatenation. Completely empty headers in a concatenation (as
927 before) are ignored.
fd700877 928
8dce1a6f
PH
929PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
930 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
931
17af4a17
PH
932PH/29 [Removed. This was a change that I later backed out, and forgot to
933 correct the ChangeLog entry (that I had efficiently created) before
934 committing the later change.]
f6c332bd
PH
935
936PH/30 Exim was sometimes attempting to deliver messages that had suffered
937 address errors (4xx response to RCPT) over the same connection as other
938 messages routed to the same hosts. Such deliveries are always "forced",
939 so retry times are not inspected. This resulted in far too many retries
940 for the affected addresses. The effect occurred only when there were more
941 hosts than the hosts_max_try setting in the smtp transport when it had
942 the 4xx errors. Those hosts that it had tried were not added to the list
943 of hosts for which the message was waiting, so if all were tried, there
944 was no problem. Two fixes have been applied:
945
946 (i) If there are any address or message errors in an SMTP delivery, none
947 of the hosts (tried or untried) are now added to the list of hosts
948 for which the message is waiting, so the message should not be a
949 candidate for sending over the same connection that was used for a
950 successful delivery of some other message. This seems entirely
951 reasonable: after all the message is NOT "waiting for some host".
952 This is so "obvious" that I'm not sure why it wasn't done
953 previously. Hope I haven't missed anything, but it can't do any
954 harm, as the worst effect is to miss an optimization.
955
956 (ii) If, despite (i), such a delivery is accidentally attempted, the
957 routing retry time is respected, so at least it doesn't keep
958 hammering the server.
959
c1114884
PH
960PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
961 in ${readsocket because some servers need this prod.
962
7a0743eb
PH
963PH/32 Added some extra debug output when updating a wait-xxx database.
964
0d85fa3f
PH
965PH/33 The hint "could be header name not terminated by colon", which has been
966 given for certain expansion errors for a long time, was not being given
967 for the ${if def:h_colon_omitted{... case.
968
1bf43b78
PH
969PH/34 The spec says: "With one important exception, whenever a domain list is
970 being scanned, $domain contains the subject domain." There was at least
971 one case where this was not true.
972
520de300
PH
973PH/35 The error "getsockname() failed: connection reset by peer" was being
974 written to the panic log as well as the main log, but it isn't really
975 panic-worthy as it just means the connection died rather early on. I have
976 removed the panic log writing for the ECONNRESET error when getsockname()
977 fails.
978
48c7f9e2
PH
979PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
980 runs only) independently of the message's sender address. This meant
981 that, if the 4xx error was in fact related to the sender, a different
982 message to the same recipient with a different sender could confuse
983 things. In particualar, this can happen when sending to a greylisting
984 server, but other circumstances could also provoke similar problems.
985 I have changed the default so that the retry time for these errors is now
986 based a combination of the sender and recipient addresses. This change
987 can be overridden by setting address_retry_include_sender=false in the
988 smtp transport.
989
99ea1c86
PH
990PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
991 remote server are returned as part of bounce messages. This was not
992 happening for LMTP over a pipe (the lmtp transport), but now it is the
993 same for both kinds of LMTP.
994
a2042e78
PH
995PH/38 Despite being documented as not happening, Exim was rewriting addresses
996 in header lines that were in fact CNAMEs. This is no longer the case.
997
4fbcfc2e
PH
998PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
999 and queue runs started by the daemon processed all messages. This has
1000 been fixed so that -R and -S can now usefully be given with -q<time>.
1001
aa41d2de
PH
1002PH/40 Import PCRE release 6.7 (fixes some bugs).
1003
af561417
PH
1004PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1005
3cc66b45
PH
1006PH/42 Give an error if -q is specified more than once.
1007
194cc0e4
PH
1008PH/43 Renamed the variables $interface_address and $interface_port as
1009 $received_ip_address and $received_port, to make it clear that these
1010 values apply to message reception, and not to the outgoing interface when
1011 a message is delivered. (The old names remain recognized, of course.)
1012
a401ddaa
PH
1013PH/44 There was no timeout on the connect() call when using a Unix domain
1014 socket in the ${readsocket expansion. There now is.
1015
4e88a19f
PH
1016PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1017 be meaningful with "accept".
1018
d7d7b289
SC
1019SC/01 Eximstats V1.43
1020 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1021
1022SC/02 Eximstats V1.44
1023 Use a glob alias rather than an array ref in the generated
1024 parser. This improves both readability and performance.
1025
1026SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1027 Collect SpamAssassin and rejection statistics.
1028 Don't display local sender or destination tables unless
1029 there is data to show.
1030 Added average volumes into the top table text output.
1031
1032SC/04 Eximstats V1.46
1033 Collect data on the number of addresses (recipients)
1034 as well as the number of messages.
1035
1036SC/05 Eximstats V1.47
1037 Added 'Message too big' to the list of mail rejection
1038 reasons (thanks to Marco Gaiarin).
1039
1040SC/06 Eximstats V1.48
1041 Mainlog lines which have GMT offsets and are too short to
1042 have a flag are now skipped.
1043
1044SC/07 Eximstats V1.49 (Alain Williams)
1045 Added the -emptyok flag.
1046
1047SC/08 Eximstats V1.50
1048 Fixes for obtaining the IP address from reject messages.
1049
0ea2a468
JJ
1050JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1051 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1052 whitesspace changes from 4.64-PH/27
1053
1054JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1055 match 4.64-PH/13
1056
1057JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1058 are found, allow negative numbers in numeric criteria)
1059
1060JJ/06 exipick.20061117.2, added new $message_body_missing variable
1061
1062JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1063 to match changes made in 4.64-PH/43
1064
8a10f5a4
PH
1065PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1066
30e18802
PH
1067PH/47 Put in an explicit test for a DNS lookup of an address record where the
1068 "domain" is actually an IP address, and force a failure. This locks out
1069 those revolvers/nameservers that support "A-for-A" lookups, in
1070 contravention of the specifications.
1071
55728a4f
PH
1072PH/48 When a host name was looked up from an IP address, and the subsequent
1073 forward lookup of the name timed out, the host name was left in
1074 $sender_host_name, contrary to the specification.
d7d7b289 1075
d7837193
PH
1076PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1077 restricted to single-key lookups, Exim was not diagnosing an error if
1078 * or *@ was used with a query-style lookup.
1079
87054a31
PH
1080PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1081
ea2c01d2
MH
1082MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1083 long ago, but noone interested enough thought of it. Let's just say that
1084 the "1.1" means that there are some new functions that weren't there at
1085 some point in the past.
1086
e4fa6968
PH
1087PH/51 Error processing for expansion failure of helo_data from an smtp
1088 transport during callout processing was broken.
1089
56f5d9bd
PH
1090PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1091 tested/used via the -bh/-bhc/-bs options.
1092
922e1c28
PH
1093PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1094 bug, fixed in subsequent PCRE releases).
1095
21eb6e72
PH
1096PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1097 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1098
a0540757
PH
1099PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1100
944e9e9c 1101
478be7b0
SC
1102Exim version 4.63
1103-----------------
1104
1105SC/01 Use a glob alias rather than an array ref in eximstats generated
1106 parser. This improves both readability and performance.
1107
1108SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1109 Don't display local sender or destination tables in eximstats unless
1110 there is data to show.
1111 Added average volumes into the eximstats top table text output.
1112
1113SC/03 Collect data on the number of addresses (recipients) as well
1114 as the number of messages in eximstats.
1115
2b965a65
TF
1116TF/01 Correct an error in the documentation for the redirect router. Exim
1117 does (usually) call initgroups() when daemonizing.
478be7b0 1118
45b91596
PH
1119TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1120 with consistent privilege compared to when running as a daemon.
478be7b0 1121
c59f5781
TF
1122TF/03 Note in the spec that $authenticated_id is not set for local
1123 submissions from trusted users.
1124
90fc3069
TF
1125TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1126 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1127
6083aca0
TF
1128TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1129 by adding some example configuration directives to the default
1130 configuration file. A little bit of work is required to uncomment the
1131 directives and define how usernames and passwords are checked, but
1132 there is now a framework to start from.
1133
765b530f
PH
1134PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1135 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1136 without this. I don't know how relevant this is to other LDAP libraries.
1137
4e167a8c
PH
1138PH/02 Add the verb name to the "unknown ACL verb" error.
1139
4608d683
PH
1140PH/03 Magnus Holmgren's patch for filter_prepend_home.
1141
b8dc3e4a
PH
1142PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1143
5418e93b
PH
1144PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1145 directory not expanded when it should be if an expanded home directory
1146 was set for the address (which is overridden by the transport).
1147
b4a9bda2
PH
1148PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1149 libradius.
1150
45b91596
PH
1151PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1152 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1153 because it is too late at that time, and has no effect.
1154
5547e2c5
PH
1155PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1156 security issue with \' (bugzilla #107). I could not use the
1157 PQescapeStringConn() function, because it needs a PGconn value as one of
1158 its arguments.
1159
dbcef0ea
PH
1160PH/08 When testing addresses using -bt, indicate those final addresses that
1161 are duplicates that would not cause an additional delivery. At least one
1162 person was confused, thinking that -bt output corresponded to deliveries.
1163 (Suppressing duplicates isn't a good idea as you lose the information
1164 about possibly different redirections that led to the duplicates.)
1165
25257489
PH
1166PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1167 systems where poll() doesn't work, in particular OS X.
1168
c816d124
PH
1169PH/10 Added more information to debugging output for retry time not reached.
1170
a9ccd69a
PH
1171PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1172 operations in malware.c.
1173
75fa1910
PH
1174PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1175 signatures.
1176
a7d7aa58
PH
1177PH/13 If write_rejectlog was set false when logging was sent to syslog with
1178 syslog_duplication set false, log lines that would normally be written
1179 both the the main log and to the reject log were not written to syslog at
1180 all.
1181
42119b09
PH
1182PH/14 In the default configuration, change the use of "message" in ACL warn
1183 statements to "add_header".
1184
41609df5
PH
1185PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1186 not followed by a command (e.g. "seen endif").
1187
a5bd321b
PH
1188PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1189 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1190 latter.
1191
e85a7ad5 1192PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1193 so that it is now:
1194
e85a7ad5
PH
1195 ${if or { \
1196 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1197 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1198 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1199 }{no}{yes}}
1200
e85a7ad5
PH
1201 The Auto-Submitted: and various List- headers are standardised, whereas I
1202 don't think Precedence: ever was.
5dff5817 1203
d8fe1c03
PH
1204PH/18 Refactored debugging code in route_finduser() to show more information,
1205 in particular, the error code if getpwnam() issues one.
1206
16282d2b
PH
1207PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1208 This is apparently needed in addition to the PH/07 change above to avoid
1209 any possible encoding problems.
1210
35d40a98
PH
1211PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1212 but not after initializing Perl.
1213
034d99ab
PH
1214PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1215 output them only if debugging. By default they are written stderr,
1216 apparently, which is not desirable.
1217
6ec97b1b
PH
1218PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1219 queries.
1220
e22ca4ac
JJ
1221JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1222 --not options
1223
1224JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1225
33d73e3b
PH
1226PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1227 authenticated or an ident call has been made. Suppress the default
1228 values for $authenticated_id and $authenticated_sender (but permit -oMai
1229 and -oMas) when testing with -bh.
1230
9ecb03f3
PH
1231PH/24 Re-jigged the order of the tests in the default configuration so that the
1232 tests for valid domains and recipients precede the DNS black list and CSA
1233 tests, on the grounds that those ones are more expensive.
1234
084efe8d
PH
1235PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1236 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1237 This bug exists in every version of Exim that I still have, right back to
1238 0.12.
1239
366fc9f0
PH
1240PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1241 However, an attempt to turn on case-sensitivity in a regex key by
1242 including (?-i) didn't work because the subject string was already
1243 lowercased, and the effects were non-intuitive. It turns out that a
1244 one-line patch can be used to allow (?-i) to work as expected.
1245
c59f5781 1246
c887c79e
TF
1247Exim version 4.62
1248-----------------
1249
1250TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1251 other effects) broke the use of negated acl sub-conditions.
1252
1cce3af8
PH
1253PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1254 patch).
1255
afb3eaaf
PH
1256PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1257 "Deny" causes Exim to reject the incoming connection with a 554 error.
1258 Unfortunately, if there is a major crisis, such as a disk failure,
1259 tcp-wrappers gives "deny", whereas what one would like would be some
1260 kind of temporary error. A kludge has been added to help with this.
1261 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1262 554 error is used if errno is still zero or contains ENOENT (which occurs
1263 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1264 451 error is used.
1265
e173618b
PH
1266PH/03 Add -lutil to the default FreeBSD LIBS setting.
1267
dd16e114
PH
1268PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1269 errors. Otherwise a message that provokes a temporary error (when other
1270 messages do not) can cause a whole host to time out.
1271
f7fd3850
PH
1272PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1273 addresses were routed directly to files or pipes from a redirect router.
1274 File deliveries just didn't batch; pipe deliveries might have suffered
1275 odd errors.
1276
d87df92c
PH
1277PH/06 A failure to get a lock for a hints database would erroneously always say
1278 "Failed to get write lock", even when it was really a read lock.
1279
7e9f683d
PH
1280PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1281 of 0600. This has been changed to use the value of the lockfile_mode
1282 option (which defaults to 0600).
1283
bfad5236
PH
1284PH/08 Applied small patch from the Sieve maintainer.
1285
01c490df
PH
1286PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1287 folder from quota calculations, a direct delivery into this folder messed
1288 up the contents of the maildirsize file. This was because the regex was
1289 used only to exclude .Trash (or whatever) when the size of the mailbox
1290 was calculated. There was no check that a delivery was happening into an
1291 excluded directory. This bug has been fixed by ignoring all quota
1292 processing for deliveries into excluded directories.
1293
d6629cdc
PH
1294PH/10 Added the maildirfolder_create_regex option to appendfile.
1295
1cce3af8 1296
214e2000
PH
1297Exim version 4.61
1298-----------------
1299
1300PH/01 The code for finding all the local interface addresses on a FreeBSD
1301 system running IPv6 was broken. This may well have applied to all BSD
1302 systems, as well as to others that have similar system calls. The broken
1303 code found IPv4 interfaces correctly, but gave incorrect values for the
1304 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1305 that it would not match correctly against @[] and not recognize the IPv6
1306 addresses as local.
1307
f9daeae0
PH
1308PH/02 The ipliteral router was not recognizing addresses of the form user@
1309 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1310
7e66e54d
PH
1311PH/03 Added disable_ipv6.
1312
c8ea1597
PH
1313PH/04 Changed $reply_address to use the raw form of the headers instead of the
1314 decoded form, because it is most often used to construct To: headers
1315 lines in autoreplies, and the decoded form may well be syntactically
1316 invalid. However, $reply_address has leading white space removed, and all
1317 newlines turned into spaces so that the autoreply transport does not
1318 grumble.
1319
911f6fde
PH
1320PH/05 If group was specified without a user on a router, and no group or user
1321 was specified on a transport, the group from the router was ignored.
1322
47ca6d6c
PH
1323PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1324 for visible compile-time settings that can be used to change these
1325 numbers, for those that want even more. Backwards compatibility with old
1326 spool files has been maintained. However, going back to a previous Exim
1327 release will lost any variables that are in spool files.
1328
ed0e9820
PH
1329PH/07 Two small changes when running in the test harness: increase delay when
1330 passing a TCP/IP connection to a new process, in case the original
1331 process has to generate a bounce, and remove special handling of
1332 127.0.0.2 (sic), which is no longer necessary.
1333
eff37e47
PH
1334PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1335 be the same on different OS.
1336
1921d2ea
PH
1337PH/09 Moved a debug statement in filter processing to avoid a race problem when
1338 testing.
1339
b3f69ca8
JJ
1340JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1341 whether --show-vars was specified or not
1342
1343JJ/02 exipick: Added support for new ACL variable spool format introduced
1344 in 4.61-PH/06
1345
424a1c63
PH
1346PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1347 syntactically invalid From: or Reply-to: line, and a filter used this to
1348 generate an autoreply, and therefore failed to obtain an address for the
1349 autoreply, Exim could try to deliver to a non-existent relative file
1350 name, causing unrelated and misleading errors. What now happens is that
1351 it logs this as a hard delivery error, but does not attempt to create a
1352 bounce message.
1353
7a100415
PH
1354PH/11 The exinext utility has a -C option for testing purposes, but although
1355 the given file was scanned by exinext itself; it wasn't being passed on
1356 when Exim was called.
1357
19b9dc85
PH
1358PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1359 an end-of-file indication when reading a command response.
1360
309bd837
PH
1361PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1362 compiled. In many other places in Exim, IPv6 addresses are always
1363 recognized, so I have changed this. It also means that IPv4 domain
1364 literals of the form [IPV4:n.n.n.n] are now always recognized.
1365
59e82a2a
PH
1366PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1367 used if the router is not running as root, for example, when verifying at
1368 ACL time, or when using -bh. The debugging output from this situation was
1369 non-existent - all you got was a failure to exec. I have made two
1370 changes:
1371
1372 (a) Failures to set uid/gid, the current directory, or a process leader
1373 in a subprocess such as that created by queryprogram now generate
1374 suitable debugging ouput when -d is set.
1375
1376 (b) The queryprogram router detects when it is not running as root,
1377 outputs suitable debugging information if -d is set, and then runs
1378 the subprocess without attempting to change uid/gid.
1379
9edc04ce
PH
1380PH/15 Minor change to Makefile for building test_host (undocumented testing
1381 feature).
1382
1349e1e5
PH
1383PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1384 additional section of a DNS packet that returns MX or SRV records.
1385 Instead, it always explicitly searches for A/AAAA records. This avoids
1386 major problems that occur when a DNS server includes only records of one
1387 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1388 fixed another bug: if SRV records were looked up and the corresponding
1389 address records were *not* found in the additional section, the port
1390 values from the SRV records were lost.
1391
ea49d0e1
PH
1392PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1393 using the correct key (the original address) when searching the retry
1394 rules in order to find which one to use for generating the retry hint.
1395
064a94c9
PH
1396PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1397 adding the default one. Similarly, if it contains a Reply-To: header, the
1398 errors_reply_to option, if set, is not used.
1399
727071f8
PH
1400PH/19 When calculating a retry time, Exim used to measure the "time since
1401 failure" by looking at the "first failed" field in the retry record. Now
1402 it does not use this if it is later than than the arrival time of the
1403 message. Instead it uses the arrival time. This makes for better
1404 behaviour in cases where some deliveries succeed, thus re-setting the
1405 "first failed" field. An example is a quota failure for a huge message
1406 when small messages continue to be delivered. Without this change, the
1407 "time since failure" will always be short, possible causing more frequent
1408 delivery attempts for the huge message than are intended.
dd16e114 1409 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1410
f78eb7c6
PH
1411PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1412 $1, $2, $3) because the numerical variables can be reset during some
1413 expansion items (e.g. "match"), thereby losing the authentication data.
1414
21c28500
PH
1415PH/21 Make -bV show the size of off_t variables so that the test suite can
1416 decide whether to run tests for quotas > 2G.
1417
1418PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1419 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1420 filecount value is greater than 2G or if a quota value is greater than 2G
1421 on a system where the size of off_t is not greater than 4, a panic error
1422 is given.
1423
1688f43b
PH
1424PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1425 never match. The debug and -bh output now contains an explicit error
1426 message indicating a malformed IPv4 address or mask.
1427
1428PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1429 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1430 PH/23 above applies.
1431
9675b384
PH
1432PH/25 Do not write to syslog when running in the test harness. The only
1433 occasion when this arises is a failure to open the main or panic logs
1434 (for which there is an explicit test).
1435
6a3f1455
PH
1436PH/26 Added the /no_tell option to "control=freeze".
1437
dac79d3e
PH
1438PH/27 If a host name lookup failed very early in a connection, for example, if
1439 the IP address matched host_lookup and the reverse lookup yielded a name
1440 that did not have a forward lookup, an error message of the form "no IP
1441 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1442 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1443
5977a0b3
PH
1444PH/28 An enabling patch from MH: add new function child_open_exim2() which
1445 allows the sender and the authenticated sender to be set when
1446 submitting a message from within Exim. Since child_open_exim() is
1447 documented for local_scan(), the new function should be too.
1448
c91535f3
PH
1449PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1450 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1451 results in an empty string is now treated as unset.
1452
0d46a8c8
PH
1453PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1454
278c6e6c
PH
1455PH/31 Added sender_verify_fail logging option.
1456
2cbb4081
PH
1457PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1458 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1459 tidied the source and removed it altogether.
1460
3eef829e
PH
1461PH/33 When a queue run was abandoned because the load average was too high, a
1462 log line was always written; now it is written only if the queue_run log
1463 selector is set. In addition, the log line for abandonment now contains
1464 information about the queue run such as the pid. This is always present
1465 in "start" and "stop" lines but was omitted from the "abandon" line.
1466
1ab95fa6
PH
1467PH/34 Omit spaces between a header name and the colon in the error message that
1468 is given when verify = headers_syntax fails (if there are lots of them,
1469 the message gets confusing).
1470
230205fc
PH
1471PH/35 Change the default for dns_check_names_pattern to allow slashes within
1472 names, as there are now some PTR records that contain slashes. This check
1473 is only to protect against broken name servers that fall over on strange
1474 characters, so the fact that it applies to all lookups doesn't matter.
1475
75e0e026
PH
1476PH/36 Now that the new test suite is complete, we can remove some of the
1477 special code in Exim that was needed for the old test suite. For example,
1478 sorting DNS records because real resolvers return them in an arbitrary
1479 order. The new test suite's fake resolver always returns records in the
1480 same order.
1481
1482PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1483 bounces) except when queue_only is set, to avoid logging races between
1484 the different processes.
1485
145396a6
PH
1486PH/38 Panic-die if .include specifies a non-absolute path.
1487
3cd34f13
PH
1488PH/39 A tweak to the "H" retry rule from its user.
1489
11121d3d
JJ
1490JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1491 a label. They prevented compilation on older perls.
1492
1493JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1494 a warning to be raised on newish perls.
1495
1496JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1497 on queue. Changes to match documented behaviour of showing count of
1498 messages matching specified criteria.
1499
8def5aaf
PH
1500PH/40 Changed the default ident timeout from 30s to 5s.
1501
929ba01c
PH
1502PH/41 Added support for the use of login_cap features, on those BSD systems
1503 that have them, for controlling the resources used by pipe deliveries.
1504
2632889e
PH
1505PH/42 The content-scanning code uses fopen() to create files in which to put
1506 message data. Previously it was not paying any attention to the mode of
1507 the files. Exim runs with umask(0) because the rest of the code creates
1508 files with open(), and sets the required mode explicitly. Thus, these
1509 files were ending up world-writeable. This was not a big issue, because,
1510 being within the spool directory, they were not world-accessible. I have
1511 created a function called modefopen, which takes an additional mode
1512 argument. It sets umask(777), creates the file, chmods it to the required
1513 mode, then resets the umask. All the relevant calls to fopen() in the
1514 content scanning code have been changed to use this function.
1515
944a9c55
PH
1516PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1517 to 24 hours. This avoids potential overflow problems when processing G
1518 and H retry rules. I suspect nobody ever tinkers with this value.
1519
4a23603b
PH
1520PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1521
4730f942
PH
1522PH/45 When the plaintext authenticator is running as a client, the server's
1523 challenges are checked to ensure they are valid base64 strings. By
1524 default, the authentication attempt is cancelled if an invalid string is
1525 received. Setting client_ignore_invalid_base64 true ignores these errors.
1526 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1527 they are received. Thus, the responses can be made to depend on the
1528 challenges. If an invalid string is ignored, an empty string is placed in
1529 the variable.
1530
30dba1e6
PH
1531PH/46 Messages that are created by the autoreply transport now contains a
1532 References: header, in accordance with RFCs 2822 and 3834.
1533
382afc6b
PH
1534PH/47 Added authenticated_sender_force to the smtp transport.
1535
a86229cf
PH
1536PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1537
50c99ba6
PH
1538PH/49 Installed latest patch from the Sieve maintainer.
1539
d35e429d
PH
1540PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1541 was also set, the appendfile transport was unnecessarily scanning a
1542 directory of message files (e.g. for maildir delivery) to find the count
1543 of files (along with the size), even though it did not need this
1544 information. It now does the scan only if it needs to find either the
1545 size of the count of files.
1546
f90d018c
PH
1547PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1548
75def545
PH
1549PH/52 Two bugs concerned with error handling when the smtp transport is
1550 used in LMTP mode:
1551
1552 (i) Exim was not creating retry information for temporary errors given
1553 for individual recipients after the DATA command when the smtp transport
1554 was used in LMTP mode. This meant that they could be retried too
1555 frequently, and not timed out correctly.
1556
1557 (ii) Exim was setting the flag that allows error details to be returned
1558 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1559 recipients that were returned after the DATA command.
1560
1561PH/53 This is related to PH/52, but is more general: for any failing address,
1562 when detailed error information was permitted to be returned to the
1563 sender, but the error was temporary, then after the final timeout, only
1564 "retry timeout exceeded" was returned. Now it returns the full error as
1565 well as "retry timeout exceeded".
1566
c46782ef
PH
1567PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1568 do this, and (what is worse) MTAs that accept it.
1569
71fafd95
PH
1570PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1571 will now be deprecated.
1572
2c5db4fd
PH
1573PH/56 New os.c-cygwin from the Cygwin maintainer.
1574
9cf6b11a
JJ
1575JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1576 formats (previously only available in exim formats via -bpr, -bpru,
1577 and -bpra. Now also available in native and exiqgrep formats)
1578
1579JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1580 with very large, slow to parse queues
1581
1582JJ/08 exipick: added ! as generic prefix to negate any criteria format
1583
1584JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1585
898d150f
PH
1586PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1587 responses to authentication challenges, though it was showing the
1588 challenges; (ii) I've removed the CR characters from the debug output for
1589 SMTP output lines.
1590
46218253
PH
1591PH/58 Allow for the insertion of a newline as well as a space when a string
1592 is turned into more than one encoded-word during RFC 2047 encoding. The
1593 Sieve code now uses this.
1594
e97957bc
PH
1595PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1596 data_4xx, lost_connection, tls_required.
1597
81e509d7
PH
1598PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1599 message was being sent as an SMTP response.
1600
3d240ff7
PH
1601PH/61 Add -l and -k options to exicyclog.
1602
b37c4101
PH
1603PH/62 When verifying, if an address was redirected to one new address, so that
1604 verification continued, and the new address failed or deferred after
1605 having set something in $address_data, the value of $address_data was not
1606 passed back to the ACL. This was different to the case when no
1607 redirection occurred. The value is now passed back in both cases.
1608
79378e0f
PH
1609PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1610 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1611 use login_cap.h, so on its own it isn't the distinguishing feature. The
1612 new name refers directly to the setclassresources() function.
1613
e49c7bb4
PH
1614PH/65 Added configuration files for NetBSD3.
1615
d114ec46
PH
1616PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1617
f3d7df6c
PH
1618PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1619 is preferred over IPv4.
1620
715ab376
PH
1621PH/68 The bounce_return_message and bounce_return_body options were not being
1622 honoured for bounces generated during the reception of non-SMTP messages.
1623 In particular, this applied to messages rejected by the ACL. This bug has
1624 been fixed. However, if bounce_return_message is true and bounce_return_
1625 body is false, the headers that are returned for a non-SMTP message
1626 include only those that have been read before the error was detected.
1627 (In the case of an ACL rejection, they have all been read.)
1628
6b31b150
PH
1629PH/69 The HTML version of the specification is now built in a directory called
1630 spec_html instead of spec.html, because the latter looks like a path with
1631 a MIME-type, and this confuses some software.
1632
1633PH/70 Catch two compiler warnings in sieve.c.
1634
d515a917
PH
1635PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1636 function verify_get_ident() calls ip_connect() to connect a socket, but
1637 if the "connect()" function timed out, ip_connect() used to close the
1638 socket. However, verify_get_ident() also closes the socket later, and in
1639 between Exim writes to the log, which may get opened at this point. When
1640 the socket was closed in ip_connect(), the log could get the same file
1641 descriptor number as the socket. This naturally causes chaos. The fix is
1642 not to close the socket in ip_connect(); the socket should be closed by
1643 the function that creates it. There was only one place in the code where
1644 this was missing, in the iplookup router, which I don't think anybody now
1645 uses, but I've fixed it anyway.
1646
9b8fadde
PH
1647PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1648 well as to direct DNS lookups. Otherwise the handling of names in host
1649 lists is inconsistent and therefore confusing.
1650
214e2000 1651
5de37277
PH
1652Exim version 4.60
1653-----------------
1654
cc38ddbf
PH
1655PH/01 Two changes to the default runtime configuration:
1656
1657 (1) Move the checks for relay_from_hosts and authenticated clients from
1658 after to before the (commented out) DNS black list checks.
1659
1660 (2) Add control=submission to the relay_from_hosts and authenticated
1661 clients checks, on the grounds that messages accepted by these
1662 statements are most likely to be submissions.
5de37277 1663
72fdd6ae
PH
1664PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1665
1666 (1) Generate an error if the third argument for the ${prvs expansion is
1667 not a single digit.
1668
1669 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1670 string.
1671
1672 (3) Reset the variables that are obtained from the first argument of
1673 ${prvscheck and used in the second argument before leaving the code,
1674 because their memory is reclaimed, so using them afterwards may do
1675 silly things.
1676
1677 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1678 one (it's much easier than Tom thought :-).
1679
1680 (5) Because of (4), we can now allow for the use of $prvscheck_result
1681 inside the third argument.
cb9328de 1682
cb741023
PH
1683PH/03 For some reason, the default setting of PATH when running a command from
1684 a pipe transport was just "/usr/bin". I have changed it to
1685 "/bin:/usr/bin".
1686
f174f16e
PH
1687PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1688 anything to be listed in the output from -bV.
b2f5a032 1689
c25242d7
PH
1690PH/05 When a filter generated an autoreply, the entire To: header line was
1691 quoted in the delivery log line, like this:
1692
1693 => >A.N.Other <ano@some.domain> <original@ddress> ...
1694
1695 This has been changed so that it extracts the operative address. There
1696 may be more than one such address. If so, they are comma-separated, like
1697 this:
1698
1699 => >ano@some.domain,ona@other.domain <original@ddress> ...
1700
82c19f95
PH
1701PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1702 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1703 not being looked up in the rDNS to get a host name, Exim was showing the
1704 IP address twice in Received: lines, even though the IP addresses were
1705 identical. For example:
1706
1707 Received: from [1.2.3.4] (helo=[1.2.3.4])
1708
1709 However, if the real host name was known, it was omitting the HELO data
1710 if it matched the actual IP address. This has been tidied up so that it
1711 doesn't show the same IP address twice.
1712
d7ffbc12
PH
1713PH/07 When both +timestamp and +memory debugging was on, the value given by
1714 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1715 called by the debug printing, thereby overwriting the timestamp buffer.
1716 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1717
9f526266
PH
1718PH/08 When the original message was included in an autoreply transport, it
1719 always said "this is a copy of the message, including all the headers",
1720 even if body_only or headers_only was set. It now gives an appropriate
1721 message.
1722
87fcc8b9
PH
1723PH/09 Applied a patch from the Sieve maintainer which:
1724
1725 o fixes some comments
1726 o adds the (disabled) notify extension core
1727 o adds some debug output for the result of if/elsif tests
1728 o points to the current vacation draft in the documentation
1729 and documents the missing references header update
1730
1731 and most important:
1732
1733 o fixes a bug in processing the envelope test (when testing
1734 multiple envelope elements, the last element determinted the
1735 result)
1736
456682f5
PH
1737PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1738 Electronic Mail") by including:
1739
1740 Auto-submitted: auto-generated
1741
1742 in the messages that it generates (bounce messages and others, such as
1743 warnings). In the case of bounce messages for non-SMTP mesages, there was
1744 also a typo: it was using "Auto_submitted" (underscore instead of
1745 hyphen). Since every message generated by Exim is necessarily in response
1746 to another message, thes have all been changed to:
1747
1748 Auto-Submitted: auto-replied
1749
1750 in accordance with these statements in the RFC:
1751
1752 The auto-replied keyword:
1753
1754 - SHOULD be used on messages sent in direct response to another
1755 message by an automatic process,
1756
1757 - MUST NOT be used on manually-generated messages,
1758
1759 - MAY be used on Delivery Status Notifications (DSNs) and Message
1760 Disposition Notifications (MDNs),
1761
1762 - MUST NOT be used on messages generated by automatic or periodic
1763 processes, except for messages which are automatic responses to
1764 other messages.
1765
3e46c1aa
PH
1766PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1767 to the default Received: header definition.
456682f5 1768
49826d12
PH
1769PH/12 Added log selector acl_warn_skipped (default on).
1770
eba0c039
PH
1771PH/13 After a successful wildlsearch lookup, discard the values of numeric
1772 variables because (a) they are in the wrong storage pool and (b) even if
1773 they were copied, it wouldn't work properly because of the caching.
1774
a0d6ba8a
PH
1775PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1776 checking when decoding. Apparently there are clients that generate
1777 overlong encoded strings. Why am I not surprised?
1778
f0917727
PH
1779PH/15 If the first argument of "${if match_address" was not empty, but did not
1780 contain an "@" character, Exim crashed. Now it writes a panic log message
1781 and treats the condition as false.
1782
096fee00
PH
1783PH/16 In autoreply, treat an empty string for "once" the same as unset.
1784
024bd3c2
PH
1785PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1786 extension "envelope-auth". The code is finished and in agreement with
1787 other implementations, but there is no documentation so far and in fact,
1788 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1789 not changing the active code.
1790
1791 Print executed "if" and "elsif" statements when debugging is used. This
1792 helps a great deal to understand what a filter does.
1793
1794 Document more things not specified clearly in RFC3028. I had all this
1795 sorted out, when out of a sudden new issues came to my mind. Oops."
1796
df199fec
PH
1797PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1798 (Bugzilla #53).
1799
d27f1df3
PH
1800PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1801 canonical form (as documented). However, after a host name lookup from
1802 the IP address, check_host() was doing a simple string comparison with
1803 addresses acquired from the DNS when checking that the found name did
1804 have the original IP as one of its addresses. Since any found IPv6
1805 addresses are likely to be in abbreviated form, the comparison could
1806 fail. Luckily, there already exists a function for doing the comparison
1807 by converting both addresses to binary, so now that is used instead of
1808 the text comparison.
1809
96776534
PH
1810PH/20 There was another similar case to PH/19, when a complete host name was
1811 given in a host list; looking up its IP address could give an abbreviated
1812 form, whereas the current host's name might or might not be abbreviated.
1813 The same fix has been applied.
1814
5de37277 1815
9a799bc0
PH
1816Exim version 4.54
1817-----------------
1818
1819PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1820 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1821 It now does.
1822
99a4b039
PH
1823PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1824 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1825
1826PH/03 Typo: missing ".o" in src/pcre/Makefile.
1827
4b233853
PH
1828PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1829 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1830 Also, for "Auto-Submitted", treat anything other than "no" as
1831 non-personal, in accordance with RFC 3834. (Previously it treated
1832 anything starting "auto-" as non-personal.)
1833
8857ccfd
PH
1834TF/01 The control=submission/name=... option had a problem with syntax
1835 errors if the name included a slash character. The /name= option
1836 now slurps the rest of the string, so it can include any characters
1837 but it must come last in the list of options (after /sender_retain
1838 or /domain=).
1839
433a2980
PH
1840PH/05 Some modifications to the interface to the fake nameserver for the new
1841 testing suite.
1842
3e46c1aa 1843
9a799bc0 1844
e3a311ba
TK
1845Exim version 4.53
1846-----------------
1847
1848TK/01 Added the "success_on_redirect" address verification option. See
1849 NewStuff for rationale and an example.
1850
13b685f9
PH
1851PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1852
395ff96d
PH
1853PH/02 Patch to exigrep to allow it to work on syslog lines.
1854
5b68f6e4
PH
1855PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1856 fread() to skip over the body file's header line, because in Cygwin the
1857 header line is locked and is inaccessible.
1858
1ab52c69
PH
1859PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1860 co-exist for some time) to make it clear that it is the Exim ID that is
1861 referenced, not the Message-ID: header line.
1862
b07e6aa3
PH
1863PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1864 string_format() function, because snprintf() does not exist on all
1865 operating systems.
1866
254e032f
PH
1867PH/06 The use of forbid_filter_existstest now also locks out the use of the
1868 ${stat: expansion item.
1869
3af76a81
PH
1870PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1871 protocol synchronization error", to keep the pedants happy.
1872
2548ba04
PH
1873PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1874 well as for IRIX systems, when gcc is being used. See the host.c source
1875 file for comments.
1876
b6c6011d
PH
1877PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1878
cf39cf57
PH
1879PH/10 Named domain lists were not working if used in a queue_smtp_domains
1880 setting.
1881
f1513293
PH
1882PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1883 transport and to the smtp transport in LMTP mode.
1884
727549a4
PH
1885TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1886
af46795e
PH
1887PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1888 run a filter in a subprocess. This could lead to confusion in subsequent
1889 lookups in the parent process. There should also be a search_tidyup() at
1890 the end of the subprocess.
1891
d7b47fd0
PH
1892PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1893 only if the host matched helo_try_verify_hosts, which caused the
1894 verification to occur when the EHLO/HELO command was issued. The ACL just
1895 tested the remembered result. Now, if a previous verification attempt has
1896 not happened, "verify = helo" does it there and then.
1897
ee744174
JJ
1898JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1899
b582ab87
PH
1900TK/03 Fix log output including CR from clamd.
1901
41a13e0a
PH
1902PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1903 exist provoked a memory error which could cause a segfault.
1904
f625cc5a
PH
1905PH/15 Installed PCRE 6.2
1906
1907PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1908
21f7af35
PH
1909PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1910 of the problem. Specifically, suggested +O2 rather than +O1 for the
1911 HP-UX compiler.
1912
31480e42
PH
1913PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1914
2d280592
PH
1915PH/20 If a delivery was routed to a non-standard port by means of an SRV
1916 record, the port was not correctly logged when the outgoing_port log
1917 selector was set (it logged the transort's default port).
1918
7cd1141b
PH
1919PH/21 Added support for host-specific ports to manualroute, queryprogram,
1920 fallback_hosts, and "hosts" in the smtp transport.
1921
1922PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1923 host errors such as "Connection refused".
1924
750af86e
PH
1925PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1926 authentication with radiusclient 0.4.9:
1927
1928 - Error returned from rc_read_config was caught wrongly
1929 - Username/password not passed on to radius server due to wrong length.
1930
1931 The presumption is that some radiusclient API changes for 4.51/PH/17
1932 were not taken care of correctly. The code is still untested by me (my
1933 Linux distribution still has 0.3.2 of radiusclient), but it was
1934 contributed by a Radius user.
1935
1936PH/24 When doing a callout, the value of $domain wasn't set correctly when
1937 expanding the "port" option of the smtp transport.
1938
4304270b
TK
1939TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1940 while reading a MIME header. Thanks to Tom Hughes for a patch.
1941
750af86e
PH
1942PH/24 Include config.h inside local_scan.h so that configuration settings are
1943 available.
1944
64ffc24f
PH
1945PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1946 that in an ACL for RCPT (for example), you can examine exactly what was
1947 received.
1948
5dd9625b
PH
1949PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1950 commands, but it was not correctly comparing the address with the actual
1951 client host address. Thus, it would show the EHLO address in Received:
1952 header lines when this was not necessary.
1953
5591031b
PH
1954PH/27 Added the % operator to ${eval:}.
1955
ba18e66a
PH
1956PH/28 Exim tries to create and chdir to its spool directory when it starts;
1957 it should be ignoring failures (because with -C, for example, it has lost
1958 privilege). It wasn't ignoring creation failures other than "already
1959 exists".
1960
9cec981f
PH
1961PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1962 -bV or -d is used.
1963
aa2b5c79
PH
1964PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1965 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1966 too many continuations, the temporary file was not being removed, and the
1967 return code was incorrect.
aa2b5c79 1968
48a53b7f
PH
1969PH/31 Missing "BOOL" in function definition in filtertest.c.
1970
1c59d63b
PH
1971PH/32 Applied Sieve patches from the maintainer.
1972
671012da
TK
1973TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1974
1509d3a8
PH
1975PH/33 Added "verify = not_blind".
1976
1977PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1978 Local/Makefile (with some defaults set). These are used in built scripts
1979 such as exicyclog, but they have never been used in the exim_install
1980 script (though there are many overriding facilities there). I have
1981 arranged that the exim_install script now takes note of these two
1982 settings.
1983
1984PH/35 Installed configuration files for Dragonfly.
1985
2fe1a124
PH
1986PH/36 When a locally submitted message by a trusted user did not contain a
1987 From: header, and the sender address was obtained from -f or from an SMTP
1988 MAIL command, and the trusted user did not use -F to supply a sender
1989 name, $originator_name was incorrectly used when constructing a From:
1990 header. Furthermore, $originator_name was used for submission mode
1991 messages from external hosts without From: headers in a similar way,
1992 which is clearly wrong.
1993
8800895a
PH
1994PH/37 Added control=suppress_local_fixups.
1995
ccfdb010
PH
1996PH/38 When log_selector = +received_sender was set, and the addition of the
1997 sender made the log line's construction buffer exactly full, or one byte
1998 less than full, an overflow happened when the terminating "\n" was
1999 subsequently added.
2000
1130bfb0
PH
2001PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2002 when the result of a list match is failure because a DNS lookup failed.
2003
ebcb507f
PH
2004PH/40 RM_COMMAND is now used in the building process.
2005
c35e155c
PH
2006PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2007 the "build-* directories that it finds.
2008
95d1f782
PH
2009PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2010 address in a domain literal was a prefix of an interface address.
2011
fd6de02e
PH
2012PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2013 when verifying a sender address, unless rewrite_headers is false.
2014
58de37c5
PH
2015PH/44 Wrote a long comment about why errors_to addresses are verified as
2016 recipients, not senders.
2017
261cf466
TF
2018TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2019 the ratelimit ACL was added.
2020
3ee512ff
PH
2021PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2022
e08c430f
PH
2023PH/46 Added extra information about PostgreSQL errors to the error string.
2024
bef5a11f
PH
2025PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2026 avoiding the need to install special zones in a real server. This is
2027 backwards compatible; if it can't find the fake resolver, it drops back.
2028 Thus, both old and new test suites can be run.
2029
7546de58
TF
2030TF/02 Added util/ratelimit.pl
2031
e5d5a95f
TF
2032TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2033 clock is set back in time.
2034
2e88a017
TF
2035TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2036 Candler <B.Candler@pobox.com>.
2037
a5f65aa4
TF
2038TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2039 OK for addresses that are the result of redirections.
2040
e7726cbf
PH
2041PH/48 A number of further additions for the benefit of the new test suite,
2042 including a fake gethostbyname() that interfaces to the fake DNS resolver
2043 (see PH/47 above).
2044
a7fdad5b
TF
2045TF/06 The fix for widen_domains has also been applied to qualify_single and
2046 search_parents which are the other dnslookup options that can cause
2047 header rewrites.
2048
6af56900
PH
2049PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2050 type ("H").
2051
0925ede6
PH
2052PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2053
66afa403
TF
2054TF/07 Exim produced the error message "an SRV record indicated no SMTP
2055 service" if it encountered an MX record with an empty target hostname.
2056 The message is now "an MX or SRV record indicated no SMTP service".
2057
0154e85a
TF
2058TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2059 if the DNS of the sending site is misconfigured. This is quite a
2060 common situation. This change restores the behaviour of treating a
2061 helo verification defer as a failure.
2062
16f12c76
PH
2063PH/51 If self=fail was set on a router, the bounce message did not include the
2064 actual error message.
2065
bbe902f0 2066
e5a9dba6
PH
2067Exim version 4.52
2068-----------------
2069
2070TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2071
22c3b60b
PH
2072PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2073 command itself ended in error, the underlying message about the transport
2074 filter timeout was being overwritten with the pipe command error. Now the
2075 underlying error message should be appended to the second error message.
2076
06a9b4b5
PH
2077TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2078
c1ac6996
PH
2079PH/02 Reduce the amount of output that "make" produces by default. Full output
2080 can still be requested.
2081
9c7a242c
PH
2082PH/03 The warning log line about a condition test deferring for a "warn" verb
2083 was being output only once per connection, rather than after each
2084 occurrence (because it was using the same function as for successful
2085 "warn" verbs). This seems wrong, so I have changed it.
2086
87ba3f5f
PH
2087TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2088 it should not have, which might have caused a crash in the right
2089 circumstances, but probably never did.
2090
2091PH/04 Installed a modified version of Tony Finch's patch to make submission
2092 mode fix the return path as well as the Sender: header line, and to
2093 add a /name= option so that you can make the user's friendly name appear
2094 in the header line.
2095
29aba418
TF
2096TF/03 Added the control = fakedefer ACL modifier.
2097
fe0dab11
TF
2098TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2099 Mark Lowes for thorough testing.
870f6ba8 2100
11d337a4
TK
2101TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2102
2103TK/03 Merged latest SRS patch from Miles Wilton.
2104
415c8f3b
PH
2105PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2106 with the definition in sysexits.h (which is #included earlier).
2107 Fortunately, Exim does not actually use EX_OK. The code used to try to
2108 preserve the sysexits.h value, by assumimg that macro definitions were
2109 scanned for macro replacements. I have been disabused of this notion,
2110 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2111
958541e9
PH
2112PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2113 in the smtp transport. When a block could not be written in a single
2114 write() function, the timeout was being re-applied to each part-write.
2115 This seems wrong - if the receiver was accepting one byte at a time it
2116 would take for ever. The timeout is now adjusted when this happens. It
2117 doesn't have to be particularly precise.
2118
c206415f
TK
2119TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2120 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2121
2a4be8f9
PH
2122PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2123 without a domain if the check to <postmaster@domain> fails.
2124
1cba11c5
SC
2125SC/01 Eximstats: added -xls and the ability to specify output files
2126 (patch written by Frank Heydlauf).
2127
2128SC/02 Eximstats: use FileHandles for outputing results.
2129
2130SC/03 Eximstats: allow any combination of xls, txt, and html output.
2131
2132SC/04 Eximstats: fixed display of large numbers with -nvr option
2133
2134SC/05 Eximstats: fixed merging of reports with empty tables.
2135
2136SC/06 Eximstats: added the -include_original_destination flag
2137
2138SC/07 Eximstats: removed tabs and trailing whitespace.
2139
1005d00e
TK
2140TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2141
2142TK/06 MBOX spool code: Add real "From " MBOX separator line
2143 so the .eml file is really in mbox format (even though
2144 most programs do not really care). Patch from Alex Miller.
2145
2146TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2147 The latter is generated from $received_to and is only set if the
2148 message has one envelope recipient. SA can use these headers,
2149 obviously out-of-the-box. Patch from Alex Miller.
2150
9b4768fa
PH
2151PH/08 The ${def test on a variable was returning false if the variable's
2152 value was "0", contrary to what the specification has always said!
2153 The result should be true unless the variable is empty.
2154
2155PH/09 The syntax error of a character other than { following "${if
2156 def:variable_name" (after optional whitespace) was not being diagnosed.
2157 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2158 accidental colon was present, for example, could give incorrect results.
2159
0d7eb84a
PH
2160PH/10 Tidied the code in a number of places where the st_size field of a stat()
2161 result is used (not including appendfile, where other changes are about
2162 to be made).
2163
2164PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2165 This involved changing a lot of size variables from int to off_t. It
2166 should work with maildirs and everything.
2167
40727bee
TK
2168TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2169 spamd dying while we are connected to it.
2170
554d2369
TF
2171TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2172 <jgh@wizmail.org>
2173
1f922db1
PH
2174PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2175 function for BDB 4.3.
2176
ef213c3b
PH
2177PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2178
8ac170f3
PH
2179PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2180 the sources for PCRE have been re-arranged and more files are now
2181 involved.
2182
b1c749bb
PH
2183PH/15 The code I had for printing potentially long long variables in PH/11
2184 above was not the best (it lost precision). The length of off_t variables
2185 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2186 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2187 to be "long long int" or "long int". This is needed for the internal
2188 formatting function string_vformat().
b1c749bb 2189
4aac9b49
PH
2190PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2191 the configuration file to be ":syslog", then the script "guesses" where
2192 the logs files are, rather than using the compiled in default. In our
2193 case the guess is not the same as the compiled default, so the script
2194 suddenly stopped working when I started to use syslog. The patch checks
2195 to see if log_file_path is "". If so, it attempts to read it from exim
2196 with no configuration file to get the compiled in version, before it
2197 falls back to the previous guessing code."
2198
294520c8
TK
2199TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2200 implementing BATV in an Exim configuration. See NewStuff for the gory
2201 details.
2202
5bd022fe
PH
2203PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2204 Makefile that are specific to HP-UX.
2205
90e9ce59
PH
2206PH/18 If the "use_postmaster" option was set for a recipient callout together
2207 with the "random" option, the postmaster address was used as the MAIL
2208 FROM address for the random test, but not for the subsequent recipient
2209 test. It is now used for both.
2210
5ea81592
PH
2211PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2212 patch removes a few documentation additions to RFC 3028, because the
2213 latest draft now contains them. It adds the new en;ascii-case comparator
2214 and a new error check for 8bit text in MIME parts. Comparator and
2215 require names are now matched exactly. I enabled the subaddress
2216 extension, but it is not well tested yet (read: it works for me)."
2217
c6c2dc1d
PH
2218PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2219 rework some of the code of TK/09 above to avoid the hardwired use of
2220 "%lld" and "long long". Replaced the call to snprintf() with a call to
2221 string_vformat().
2222
fffffe4c
PH
2223PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2224 records point to non-existent hosts", "retry timeout exceeded", and
2225 "retry time not reached for any host after a long failure period".
ca02eafb 2226
9a26b6b2
PH
2227PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2228 experimental DomainKeys support:
2229
2230 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2231 (2) On an error such as an illegally used "control", the wrong name for
2232 the control was given.
2233
2234 These problems did NOT occur unless DomainKeys support was compiled.
2235
4aee0225
PH
2236PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2237
32d668a5
PH
2238PH/24 Added ${if match_ip condition.
2239
8187c3f3
PH
2240PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2241 databases so that it will be absolutely obvious if a crash occurs in the
2242 DB library. This is a regular occurrence (often caused by mis-matched
2243 db.h files).
2244
ff790e47 2245PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2246 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2247 picked up on a user's system that detects such things. There doesn't seem
2248 to be a gcc warning option for this - only an attribute that has to be
2249 put on the function's prototype. It seems that in Fedora Core 4 they have
2250 set this on a number of new functions. No doubt there will be more in due
2251 course.
ff790e47 2252
5417f6d1
PH
2253PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2254 specify a transport. However, if an address that was verified by such a
2255 router was the subject of a callout, Exim crashed because it tried to
2256 read the rcpt_include_affixes from the non-existent transport. Now it
2257 just assumes that the setting of that option is false. This bug was
2258 introduced by 4.51/PH/31.
2259
59cf8544
PH
2260PH/28 Changed -d+all to exclude +memory, because that information is very
2261 rarely of interest, but it makes the output a lot bigger. People tend to
2262 do -d+all out of habit.
2263
e7ad8a65
PH
2264PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2265 code in os-type was giving problems when libc.so lives in lib64, like on
2266 x86_64 Fedora Core.
2267
ade42478
PH
2268PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2269 aren't the modern standard, and it seems that some systems' include files
2270 don't always have them. Exim was already checking for some of the newer
2271 ones like T_AAAA, and defining it itself. I've added checks for all the
2272 record types that Exim uses.
2273
182ad5cf
PH
2274PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2275 not automatically generating a new one, as it is supposed to. This
2276 prevented TLS from working. If the file did exist, but contained invalid
2277 data, a new version was generated, as expected. It was only the case of a
2278 non-existent file that was broken.
2279
b0d9fc80
TK
2280TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2281 with a change in libdomainkeys > 0.64.
2282
2283TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2284 from DNS. If the selector record carries the flag, it now has
2285 precedence over the domain-wide flag.
2286
2287TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2288
47c7a64a
PH
2289PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2290 the use of a port name that isn't defined in /etc/services) occurred, the
2291 message was deferred as in a normal delivery, and thus remained on the
2292 spool, instead of being failed because of the mua_wrapper setting. This
2293 is now fixed, and I tidied up some of the mua_wrapper messages at the
2294 same time.
2295
a388bce4
SC
2296SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2297 the messages in a hash of arrays rather than using individual hashes.
2298 This is a bit cleaner and results in dramatic memory savings, albeit
2299 at a slight CPU cost.
2300
2301SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2302 as requested by Marc Sherman.
2303
2304SC/10 Eximstats: added histograms for user specified patterns as requested
2305 by Marc Sherman.
2306
0793e4ed
SC
2307SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2308
c58b88df
PH
2309PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2310 fopen() in the content-scanning modules that did not already have it.
2311
e7ad8a65 2312
7982096b
PH
2313Exim version 4.51
2314-----------------
2315
1a46a8c5
PH
2316TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2317 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2318
2f079f46 2319TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2320
2321TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2322
2323PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2324 to test Sieve filters that use "vacation".
2325
2326PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2327 that changes the way the GnuTLS parameters are stored in the cache file.
2328 The new format can be generated externally. For backward compatibility,
2329 if the data in the cache doesn't make sense, Exim assumes it has read an
2330 old-format file, and it generates new data and writes a new file. This
2331 means that you can't go back to an older release without removing the
2332 file.
2333
2334PH/03 A redirect router that has both "unseen" and "one_time" set does not
2335 work if there are any delivery delays because "one_time" forces the
2336 parent to be marked "delivered", so its unseen clone is never tried
2337 again. For this reason, Exim now forbids the simultaneous setting of
2338 these two options.
2339
2340PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2341 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2342 entry if you want to know the details. The fix, however, neglected to
2343 consider the case when local delivery batching is involved. The test for
2344 "previously delivered" was not happening when checking to see if an
2345 address could be batched with a previous (undelivered) one; under
2346 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2347 address.
1a46a8c5
PH
2348
2349PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2350 in its include files, and this causes problems building Exim.
2351
2352PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2353 header_syntax) but Exim was just ignoring anything given after a slash.
2354 In particular, this caused confusion with an attempt to use "verify =
2355 reverse_host_lookup/defer_ok". An error is now given when options are
2356 supplied for verify items that do not have them. (Maybe reverse_host_
2357 lookup should have a defer_ok option, but that's a different point.)
2358
2359PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2360 defined by RFC 821) to 2048, because there were problems with some AUTH
2361 commands, and RFC 1869 says the size should be increased for extended
2362 SMTP commands that take arguments.
2363
2364PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2365 Finch).
2366
2367PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2368 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2369
49c2d5ea
PH
2370PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2371 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2372 whatever). Otherwise the password may appear in the log. Following change
2373 PH/42 below, there is no longer a chance of it appearing in a bounce
2374 message.
49c2d5ea 2375
bf759a8b
PH
2376PH/11 Installed exipick version 20050225.0 from John Jetmore.
2377
83364d30
PH
2378PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2379 of its addresses was ever tried. (Bugzilla bug #2.)
2380
7999bbd7
PH
2381PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2382 the result incorrectly in the debug output. (It correctly added a newline
2383 to what was transported.)
2384
7dbf77c9
PH
2385TF/01 Added $received_time.
2386
74e0617f
PH
2387PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2388 commented out examples of how to interface to a virus scanner and to
2389 SpamAssassin. Also added commented examples of av_scanner and
2390 spamd_address settings.
2391
2f079f46
PH
2392PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2393 and controls are allowed in which ACLs. There were a couple of minor
2394 errors. Some of the entries in the conditions table (which is a table of
2395 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2396 negation of where the condition IS allowed.
2397
8c841523
PH
2398PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2399
7766a4f0
PH
2400PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2401 header file does not have a version number, so I've had to invent a new
2402 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2403 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2404 radiusclient), but it was contributed by a Radius user.
2405
8b417f2c
PH
2406PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2407 files or directories, for OpenSSL.
2408
901f42cb
PH
2409PH/19 When an Exim process that is running as root has to create an Exim log
2410 file, it does so in a subprocess that runs as exim:exim so as to get the
2411 ownership right at creation (otherwise, other Exim processes might see
2412 the file with the wrong ownership). There was no test for failure of this
2413 fork() call, which would lead to the process getting stuck as it waited
2414 for a non-existent subprocess. Forks do occasionally fail when resources
2415 run out. I reviewed all the other calls to fork(); they all seem to check
2416 for failure.
2417
f9b9210e
PH
2418PH/20 When checking for unexpected SMTP input at connect time (before writing
2419 the banner), Exim was not dealing correctly with a non-positive return
2420 from the read() function. If the client had disconnected by this time,
2421 the result was a log entry for a synchronization error with an empty
2422 string after "input=" when read() returned zero. If read() returned -1
2423 (an event I could not check), uninitialized data bytes were printed.
2424 There were reports of junk text (parts of files, etc) appearing after
2425 "input=".
2426
54cdb463
PH
2427PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2428
cf00dad6
PH
2429PH/22 Added support for macro redefinition, and (re)definition in between
2430 driver and ACL definitions.
2431
acb1b346
PH
2432PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2433 forgetting to use the resulting value; it was using the unexpanded value.
2434
c5ddb310
PH
2435PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2436 hadn't been configured. The fix is from Juergen Kreileder, who
2437 understands it better than I do:
2438
2439 "Here's what I see happening with three configured cyrus_sasl
2440 authenticators configured (plain, login, cram-md5):
2441
2442 On startup auth_cyrus_sasl_init() gets called for each of these.
2443 This means three calls to sasl_listmech() without a specified mech_list.
2444 => SASL tests which mechs of all available mechs actually work
2445 => three warnings about OTP not working
2446 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2447
2448 With the patch, sasl_listmech() also gets called three times. But now
2449 SASL's mech_list option is set to the server_mech specified in the the
2450 authenticator. Or in other words, the answer from sasl_listmech()
2451 gets limited to just the mech you're testing for (which is different
2452 for each call.)
2453 => the return list contains just 'plain' or 'login', 'cram-md5' or
2454 nothing depending on the value of ob->server_mech.
2455
2456 I've just tested the patch: Authentication still works fine,
2457 unavailable mechs specified in the exim configuration are still
2458 caught, and the auth.log warnings about OTP are gone."
2459
31619da6
PH
2460PH/25 When debugging is enabled, the contents of the command line are added
2461 to the debugging output, even when log_selector=+arguments is not
2462 specified.
2463
bebaf0fc
PH
2464PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2465 answer is "GNU", and only if the return is "GNU/something" is the answer
2466 "Linux".
2467
475fe28a
PH
2468PH/27 $acl_verify_message is now set immediately after the failure of a
2469 verification in an ACL, and so is available in subsequent modifiers. In
2470 particular, the message can be preserved by coding like this:
2471
2472 warn !verify = sender
2473 set acl_m0 = $acl_verify_message
2474
2475 Previously, $acl_verify_message was set only while expanding "message"
2476 and "log_message" when a very denied access.
2477
7e8bec7a
PH
2478PH/28 Modified OS/os.c-Linux with
2479
2480 -#ifndef OS_LOAD_AVERAGE
2481 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2482
2483 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2484 nomenclature these days.)
2485
e4a89c47
PH
2486PH/29 Installed patch from the Sieve maintainer that adds the options
2487 sieve_useraddress and sieve_subaddress to the redirect router.
2488
5ca2a9a1
PH
2489PH/30 In these circumstances:
2490 . Two addresses routed to the same list of hosts;
2491 . First host does not offer TLS;
2492 . First host accepts first address;
2493 . First host gives temporary error to second address;
2494 . Second host offers TLS and a TLS session is established;
2495 . Second host accepts second address.
2496 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2497 and peerdn, if requested) that were in fact used only for the second
2498 address.
7e8bec7a 2499
c688b954
PH
2500PH/31 When doing a callout as part of verifying an address, Exim was not paying
2501 attention to any local part prefix or suffix that was matched by the
2502 router that accepted the address. It now behaves in the same way as it
2503 does for delivery: the affixes are removed from the local part unless
2504 rcpt_include_affixes is set on the transport.
2505
fed77020
PH
2506PH/32 Add the sender address, as F=<...>, to the log line when logging a
2507 timeout during the DATA phase of an incoming message.
2508
7fe1560f
PH
2509PH/33 Sieve envelope tests were broken for match types other than :is. I have
2510 applied a patch sanctioned by the Sieve maintainer.
c688b954 2511
ebb6e6d5
PH
2512PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2513 the uid or gid is negative. A case of a negative gid caused this to be
2514 noticed. The fix allows for either to be negative.
2515
9c4e8f60
PH
2516PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2517 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2518 overlooked.
2519
2520PH/36 The change PH/12 above was broken. Fixed it.
2521
d7174846
PH
2522PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2523 the grounds that routing the same address twice would always produce the
2524 same answer. This might have been true once, but it is certainly no
2525 longer true now. Routing a child address may depend on the previous
2526 routing that produced that child. Some complicated redirection strategies
2527 went wrong when messages had multiple recipients, and made Exim's
2528 behaviour dependent on the order in which the addresses were given.
2529
2530 I have moved the duplicate checking until after the routing is complete.
2531 Exim scans the addresses that are assigned to local and remote
2532 transports, and removes any duplicates. This means that more work will be
2533 done, as duplicates will always all be routed, but duplicates are
2534 presumably rare, so I don't expect this is of any significance.
2535
2536 For deliveries to pipes, files, and autoreplies, the duplicate checking
2537 still happens during the routing process, since they are not going to be
2538 routed further.
2539
cfe75fc3
PH
2540PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2541 It corrects a timeout issue with spamd. This is Ian's comment: "The
2542 background is that sometimes spamd either never reads data from a
2543 connection it has accepted, or it never writes response data. The exiscan
2544 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2545 blindly assumes that writes won't block so it may never time out."
2546
be22d70e
PH
2547PH/39 Allow G after quota size as well as K and M.
2548
0612b098
PH
2549PH/40 The value set for $authenticated_id in an authenticator may not contain
2550 binary zeroes or newlines because the value is written to log lines and
2551 to spool files. There was no check on this. Now the value is run through
2552 the string_printing() function so that such characters are converted to
2553 printable escape sequences.
2554
2e0c1448
PH
2555PH/41 $message_linecount is a new variable that contains the total number of
2556 lines in the message. Compare $body_linecount, which is the count for the
2557 body only.
2558
447d236c
PH
2559PH/42 Exim no longer gives details of delivery errors for specific addresses in
2560 bounce and delay warning messages, except in certain special cases, which
2561 are as follows:
2562
2563 (a) An SMTP error message from a remote host;
2564 (b) A message specified in a :fail: redirection;
2565 (c) A message specified in a "fail" command in a system filter;
2566 (d) A message specified in a FAIL return from the queryprogram router;
2567 (e) A message specified by the cannot_route_message router option.
2568
2569 In these cases only, Exim does include the error details in bounce and
2570 warning messages. There are also a few cases where bland messages such
2571 as "unrouteable address" or "local delivery error" are given.
2572
d20976dc
PH
2573PH/43 $value is now also set for the "else" part of a ${run expansion.
2574
f656d135
PH
2575PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2576 being worked on, but at least Exim now implements the latest version to
2577 play with."
2578
2e2a30b4
PH
2579PH/45 In a pipe transport, although a timeout while waiting for the pipe
2580 process to complete was treated as a delivery failure, a timeout while
2581 writing the message to the pipe was logged, but erroneously treated as a
2582 successful delivery. Such timeouts include transport filter timeouts. For
2583 consistency with the overall process timeout, these timeouts are now
2584 treated as errors, giving rise to delivery failures by default. However,
2585 there is now a new Boolean option for the pipe transport called
2586 timeout_defer, which, if set TRUE, converts the failures into defers for
2587 both kinds of timeout. A transport filter timeout is now identified in
2588 the log output.
2589
9176e9f0
PH
2590PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2591 systems where "make" and "gmake" are different, calling "gmake" at top
2592 level broke things. I've arranged for the value of $(MAKE) to be passed
2593 from the Makefile to this script so that it can call the same version of
2594 "make".
2595
7982096b 2596
bbe902f0
PH
2597A note about Exim versions 4.44 and 4.50
2598----------------------------------------
2599
2600Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2601changes of various kinds. As a consequence, a big documentation update was
2602needed. This delayed the release for rather longer than seemed good, especially
2603in the light of a couple of (minor) security issues. Therefore, the changes
2604that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2605release. So 4.44 and 4.50 are in effect two different branches that both start
2606from 4.43.
2607
2608I have left the 4.50 change log unchanged; it contains all the changes since
26094.43. The change log for 4.44 is below; many of its items are identical to
2610those for 4.50. This seems to be the most sensible way to preserve the
2611historical information.
2612
2613
f7b63901 2614Exim version 4.50
495ae4b0
PH
2615-----------------
2616
5fe762f6
PH
2617 1. Minor wording change to the doc/README.SIEVE file.
2618
139059f6 2619 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2620 computation of the current number of files was incorrect.
495ae4b0 2621
7086e875
PH
2622 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2623 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2624 place.
2625
35af9f61
PH
2626 4. Give more explanation in the error message when the command for a transport
2627 filter fails to execute.
2628
b668c215
PH
2629 5. There are several places where Exim runs a non-Exim command in a
2630 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2631 was being done only for the command run by the queryprogram router. It is
2632 now done for all such subprocesses. The other cases are: ${run, transport
2633 filters, and the commands run by the lmtp and pipe transports.
2634
a494b1e1
PH
2635 6. Added CONFIGURE_GROUP build-time option.
2636
2637 7. Some older OS have a limit of 256 on the maximum number of file
2638 descriptors. Exim was using setrlimit() to set 1000 as a large value
2639 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2640 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2641
c5fcb476
PH
2642 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2643 was an oversight, and furthermore, ever since the addition of extra
2644 controls (e.g. 4.43/32), the checks on when to allow different forms of
2645 "control" were broken. There should now be diagnostics for all cases when a
2646 control that does not make sense is encountered.
2647
69358f02
PH
2648 9. Added the /retain_sender option to "control=submission".
2649
5be20824
PH
265010. $recipients is now available in the predata ACL (oversight).
2651
eb2c0248
PH
265211. Tidy the search cache before the fork to do a delivery from a message
2653 received from the command line. Otherwise the child will trigger a lookup
2654 failure and thereby defer the delivery if it tries to use (for example) a
2655 cached ldap connection that the parent has called unbind on.
2656
2a3eea10
PH
265712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2658 of $address_data from the recipient verification was clobbered by the
2659 sender verification.
2660
266113. The value of address_data from a sender verification is now available in
2662 $sender_address_data in subsequent conditions in the ACL statement.
2663
23c7ff99
PH
266414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2665
4deaf07d
PH
266615. Added a new option "connect=<time>" to callout options, to set a different
2667 connection timeout.
2668
926e1192
PH
266916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2670 was its contents. (It was OK if the option was not defined at all.)
2671
650edc6f
PH
267217. A "Completed" log line is now written for messages that are removed from
2673 the spool by the -Mrm option.
2674
2c7db3f5
PH
267518. New variables $sender_verify_failure and $recipient_verify_failure contain
2676 information about exactly what failed.
2677
3d235903
PH
267819. Added -dd to debug only the daemon process.
2679
7c7ad977
PH
268020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2681 handles timeouts, both on the server side and network timeouts. Renamed the
2682 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2683
981756db
PH
268421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2685 It is now set to "smtps".
2686
d4eb88df
PH
268722. $host_address is now set to the target address during the checking of
2688 ignore_target_hosts.
2689
269023. When checking ignore_target_hosts for an ipliteral router, no host name was
2691 being passed; this would have caused $sender_host_name to have been used if
2692 matching the list had actually called for a host name (not very likely,
2693 since this list is usually IP addresses). A host name is now passed as
2694 "[x.x.x.x]".
2695
7d468ab8
PH
269624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2697 code that specifies a non-restarting handler (typically sigaction() in
2698 modern systems) in an attempt to fix a rare and obscure crash bug.
2699
270025. Narrowed the window for a race in the daemon that could cause it to ignore
2701 SIGCHLD signals. This is not a major problem, because they are used only to
2702 wake it up if nothing else does.
2703
62c0818f
PH
270426. A malformed maildirsize file could cause Exim to calculate negative values
2705 for the mailbox size or file count. Odd effects could occur as a result.
2706 The maildirsize information is now recalculated if the size or filecount
2707 end up negative.
2708
26034054
PH
270927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2710 support for a long time. Removed HAVE_SYS_VFS_H.
2711
af66f652
PH
271228. Installed the latest version of exipick from John Jetmore.
2713
90af77f4
PH
271429. In an address list, if the pattern was not a regular expression, an empty
2715 subject address (from a bounce message) matched only if the pattern was an
2716 empty string. Non-empty patterns were not even tested. This was the wrong
2717 because it is perfectly reasonable to use an empty address as part of a
2718 database query. An empty address is now tested by patterns that are
2719 lookups. However, all the other forms of pattern expect the subject to
2720 contain a local part and a domain, and therefore, for them, an empty
2721 address still always fails if the pattern is not itself empty.
2722
d8ef3577
PH
272330. Exim went into a mad DNS loop when attempting to do a callout where the
2724 host was specified on an smtp transport, and looking it up yielded more
2725 than one IP address.
2726
5cb8cbc6
PH
272731. Re-factored the code for checking spool and log partition space into a
2728 function that finds that data and another that does the check. The former
2729 is then used to implement four new variables: $spool_space, $log_space,
2730 $spool_inodes, and $log_inodes.
2731
14702f5b
PH
273232. The RFC2047 encoding function was originally intended for short strings
2733 such as real names; it was not keeping to the 75-character limit for
2734 encoded words that the RFC imposes. It now respects the limit, and
2735 generates multiple encoded words if necessary. To be on the safe side, I
2736 have increased the buffer size for the ${rfc2047: expansion operator from
2737 1024 to 2048 bytes.
2738
063b1e99
PH
273933. It is now permitted to omit both strings after an "if" condition; if the
2740 condition is true, the result is "true". As before, when the second string
2741 is omitted, a false condition yields an empty string. This makes it less
2742 cumbersome to write custom ACL and router conditions.
2743
652e1b65
PH
274434. Failure to deliver a bounce message always caused it to be frozen, even if
2745 there was an errors_to setting on the router. The errors_to setting is now
2746 respected.
2747
6f0c9a4f
PH
274835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2749 canonical form (fully expanded) before being placed in
2750 $sender_host_address.
2751
33397d19
PH
275236. The table in the code that translates DNS record types into text (T_A to
2753 "A" for instance) was missing entries for NS and CNAME. It is just possible
2754 that this could have caused confusion if both these types were looked up
2755 for the same domain, because the text type is used as part of Exim's
2756 per-process caching. But the chance of anyone hitting this buglet seems
2757 very small.
2758
7bb56e1f
PH
275937. The dnsdb lookup has been extended in a number of ways.
2760
2761 (1) There is a new type, "zns", which walks up the domain tree until it
2762 finds some nameserver records. It should be used with care.
2763
ea3bc19b
PH
2764 (2) There is a new type, "mxh", which is like "mx" except that it returns
2765 just the host names, not the priorities.
2766
2767 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2768 looked up. The behaviour when one of the lookups defers can be
2769 controlled by a keyword.
7bb56e1f 2770
ea3bc19b 2771 (4) It is now possible to specify the separator character for use when
7bb56e1f 2772 multiple records are returned.
33397d19 2773
0bcb2a0e
PH
277438. The dnslists ACL condition has been extended: it is now possible to supply
2775 a list of IP addresses and/or domains to be looked up in a particular DNS
2776 domain.
2777
2ac0e484
PH
277839. Added log_selector=+queue_time_overall.
2779
4e1fde53
PH
278040. When running the queue in the test harness, wait just a tad after forking a
2781 delivery process, to get repeatability of debugging output.
2782
de365ded
PH
278341. Include certificate and key file names in error message when GnuTLS fails
2784 to set them up, because the GnuTLS error message doesn't include the name
2785 of the failing file when there is a problem reading it.
2786
f05da2e8
PH
278742. Allow both -bf and -bF in the same test run.
2788
d6453af2
PH
278943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2790
f7b63901
PH
279144. The "Exiscan patch" is now merged into the mainline Exim source.
2792
279345. Sometimes the final signoff response after QUIT could fail to get
2794 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2795 < 0 before doing a fflush(). This bug looks as though it goes back to the
2796 introduction of TLS in release 3.20, but "sometimes" must have been rare
2797 because the tests only now provoked it.
2798
a444213a
PH
279946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2800 (this can affect the format of dates).
2801
0ec020ea
PH
280247. exim_tidydb, when checking for the continued existence of a message for
2803 which it has found a message-specific retry record, was not finding
2804 messages that were in split spool directories. Consequently, it was
2805 deleting retry records that should have stayed in existence.
2806
b1206957
PH
280748. Steve fixed some bugs in eximstats.
2808
280949. The SPA authentication driver was not abandoning authentication and moving
2810 on to the next authenticator when an expansion was forced to fail,
2811 contradicting the general specification for all authenticators. Instead it
2812 was generating a temporary error. It now behaves as specified.
2813
26dd5a95
PH
281450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2815 (the order specifies the preference for clients). The order is now AES256,
2816 AES128, 3DES, ARCFOUR128.
2817
343b2385
PH
281851. Small patch to Sieve code - explicitly set From: when generating an
2819 autoreply.
2820
1c5466b9
PH
282152. Exim crashed if a remote delivery caused a very long error message to be
2822 recorded - for instance if somebody sent an entire SpamAssassin report back
2823 as a large number of 550 error lines. This bug was coincidentally fixed by
2824 increasing the size of one of Exim's internal buffers (big_buffer) that
2825 happened as part of the Exiscan merge. However, to be on the safe side, I
2826 have made the code more robust (and fixed the comments that describe what
2827 is going on).
2828
55ee9ee3
PH
282953. Now that there can be additional text after "Completed" in log lines (if
2830 the queue_time_overall log selector is set), a one-byte patch to exigrep
2831 was needed to allow it to recognize "Completed" as not the last thing in
2832 the line.
2833
d38f8232
PH
283454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2835 patch that reportedly fixes this has been added. I am not expert enough to
2836 create a test for it. This is what the patch creator wrote:
2837
2838 "I found a little strange behaviour of ldap code when working with
2839 Windows 2003 AD Domain, where users was placed in more than one
2840 Organization Units. When I tried to give exim partial DN, the exit code
2841 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2842 But simultaneously result of request was absolutely normal ldap result,
2843 so I produce this patch..."
2844
3295e65b
PH
2845 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2846 REFERENCE, so I have modified the code to exclude the patch when that macro
2847 is not defined.
2848
7102e136
PH
284955. Some experimental protocols are using DNS PTR records for new purposes. The
2850 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2851 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2852 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2853 CAN-2005-0021
7102e136 2854
3ca0ba97
PH
285556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2856
c2bcbe20
PH
285757. Double the size of the debug message buffer (to 2048) so that more of very
2858 long debug lines gets shown.
2859
18ce445d
PH
286058. The exicyclog utility now does better if the number of log files to keep
2861 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2862
1f5b4c3d
PH
286359. Two changes related to the smtp_active_hostname option:
2864
2865 (1) $smtp_active_hostname is now available as a variable.
2866 (2) The default for smtp_banner uses $smtp_active_hostname instead
2867 of $primary_hostname.
2868
b975ba52
PH
286960. The host_aton() function is supposed to be passed a string that is known
2870 to be a valid IP address. However, in the case of IPv6 addresses, it was
2871 not checking this. This is a hostage to fortune. Exim now panics and dies
2872 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2873 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2874 components; fortuitously, this particular loophole had already been fixed
2875 by change 4.50/55 above.
2876
2877 If there are any other similar loopholes, the new check in host_aton()
2878 itself should stop them being exploited. The report I received stated that
2879 data on the command line could provoke the exploit when Exim was running as
2880 exim, but did not say which command line option was involved. All I could
2881 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2882 running as the user.
ea3a6f44 2883 CAN-2005-0021
85b87bc2
PH
2884
288561. There was a buffer overflow vulnerability in the SPA authentication code
2886 (which came originally from the Samba project). I have added a test to the
2887 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2888 CAN-2005-0022
b975ba52 2889
17ffcae7
PH
289062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2891 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2892
d95f9fdb
PH
289363. The daemon start-up calls getloadavg() while still root for those OS that
2894 need the first call to be done as root, but it missed one case: when
2895 deliver_queue_load_max is set with deliver_drop_privilege. This is
2896 necessary for the benefit of the queue runner, because there is no re-exec
2897 when deliver_drop_privilege is set.
2898
86b8287f
PH
289964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2900 This has been fixed.
2901
60dc5e56
PH
290265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2903 was in use, was not putting the data itself into the right store pool;
2904 consequently, it could be overwritten for a subsequent message in the same
2905 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2906 the caching.)
2907
533244af
PH
290866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2909
a5a28604
PH
291067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2911 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2912 the function were treating the return as a boolean value, which happened to
2913 work because 0=false and not-0=true, but is not correct code.
2914
7e634d24
PH
291568. The host_aton() function was not handling scoped IPv6 addresses (those
2916 with, for example, "%eth0" on the end) correctly.
2917
3e11c26b
PH
291869. Fixed some compiler warnings in acl.c for the bitmaps specified with
2919 negated items (that is, ~something) in unsigned ints. Some compilers
2920 apparently mutter when there is no cast.
2921
6729cf78
PH
292270. If an address verification called from an ACL failed, and did not produce a
2923 user-specific message (i.e. there was only a "system" message), nothing was
2924 put in $acl_verify_message. In this situation, it now puts the system
2925 message there.
2926
00f00ca5
PH
292771. Change 4.23/11 added synchronization checking at the start of an SMTP
2928 session; change 4.31/43 added the unwanted input to the log line - except
2929 that it did not do this in the start of session case. It now does.
2930
c9bdd01c
PH
293172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2932 This is wrong and can cause the other end to generate a synchronization
2933 error if it is another Exim or anything else that does the synchronization
2934 check. A QUIT command is no longer sent after a timeout.
2935
d43194df
PH
293673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2937 during host lookups.
2938
fe5b5d0b
PH
293974. The defer_ok option of callout verification was not working if it was used
2940 when verifying addresses in header lines, that is, for this case:
2941
2942 verify = header_sender/callout=defer_ok
2943
76a2d7ba
PH
294475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2945 those file descriptors could be used for SMTP connections. If anything
2946 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2947 could be sent to the SMTP client, causing chaos. The daemon now opens
2948 stdin, stdout, and stderr to /dev/null when it puts itself into the
2949 background.
2950
295176. Arrange for output from Perl's "warn" command to be written to Exim's main
2952 log by default. The user can override this with suitable Perl magic.
2953
04f7d5b9
PH
295477. The use of log_message on a "discard" ACL verb, which is supposed to add to
2955 the log message when discard triggers, was not working for the DATA ACL or
2956 for the non-SMTP ACL.
2957
bc60667e
PH
295878. Error message wording change in sieve.c.
2959
bb6e88ff
PH
296079. If smtp_accept_max_per_host was set, the number of connections could be
2961 restricted to fewer than expected, because the daemon was trying to set up
2962 a new connection before checking whether the processes handling previous
2963 connections had finished. The check for completed processes is now done
2964 earlier. On busy systems, this bug wouldn't be noticed because something
2965 else would have woken the daemon, and it would have reaped the completed
2966 process earlier.
2967
1e70f85b
PH
296880. If a message was submitted locally by a user whose login name contained one
2969 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2970 It caused a spool format error. I have fixed the spool reading code. A
2971 related problem was that the "from" clause in the Received: line became
2972 illegal because of the space(s). It is now covered by ${quote_local_part.
2973
297481. Included the latest eximstats from Steve (adds average sizes to HTML Top
2975 tables).
2976
4e01f9d6
PH
297782. Updated OS/Makefile-AIX as per message from Mike Meredith.
2978
1ee1cef2
PH
297983. Patch from Sieve maintainer to fix unterminated string problem in
2980 "vacation" handling.
2981
6e2b4ccc
PH
298284. Some minor changes to the Linux configuration files to help with other
2983 OS variants using glibc.
2984
8e669ac1
PH
298585. One more patch for Sieve to update vacation handling to latest spec.
2986
495ae4b0 2987
bbe902f0
PH
2988----------------------------------------------------
2989See the note above about the 4.44 and 4.50 releases.
2990----------------------------------------------------
2991
2992
2993Exim version 4.44
2994-----------------
2995
2996 1. Change 4.43/35 introduced a bug that caused file counts to be
2997 incorrectly computed when quota_filecount was set in an appendfile
2998 transport
2999
3000 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3001 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3002 place.
3003
3004 3. Give more explanation in the error message when the command for a transport
3005 filter fails to execute.
3006
3007 4. There are several places where Exim runs a non-Exim command in a
3008 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3009 was being done only for the command run by the queryprogram router. It is
3010 now done for all such subprocesses. The other cases are: ${run, transport
3011 filters, and the commands run by the lmtp and pipe transports.
3012
3013 5. Some older OS have a limit of 256 on the maximum number of file
3014 descriptors. Exim was using setrlimit() to set 1000 as a large value
3015 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3016 systems. I've change it so that if it can't get 1000, it tries for 256.
3017
3018 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3019 was an oversight, and furthermore, ever since the addition of extra
3020 controls (e.g. 4.43/32), the checks on when to allow different forms of
3021 "control" were broken. There should now be diagnostics for all cases when a
3022 control that does not make sense is encountered.
3023
3024 7. $recipients is now available in the predata ACL (oversight).
3025
3026 8. Tidy the search cache before the fork to do a delivery from a message
3027 received from the command line. Otherwise the child will trigger a lookup
3028 failure and thereby defer the delivery if it tries to use (for example) a
3029 cached ldap connection that the parent has called unbind on.
3030
3031 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3032 of $address_data from the recipient verification was clobbered by the
3033 sender verification.
3034
303510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3036 was its contents. (It was OK if the option was not defined at all.)
3037
303811. A "Completed" log line is now written for messages that are removed from
3039 the spool by the -Mrm option.
3040
304112. $host_address is now set to the target address during the checking of
3042 ignore_target_hosts.
3043
304413. When checking ignore_target_hosts for an ipliteral router, no host name was
3045 being passed; this would have caused $sender_host_name to have been used if
3046 matching the list had actually called for a host name (not very likely,
3047 since this list is usually IP addresses). A host name is now passed as
3048 "[x.x.x.x]".
3049
305014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3051 code that specifies a non-restarting handler (typically sigaction() in
3052 modern systems) in an attempt to fix a rare and obscure crash bug.
3053
305415. Narrowed the window for a race in the daemon that could cause it to ignore
3055 SIGCHLD signals. This is not a major problem, because they are used only to
3056 wake it up if nothing else does.
3057
305816. A malformed maildirsize file could cause Exim to calculate negative values
3059 for the mailbox size or file count. Odd effects could occur as a result.
3060 The maildirsize information is now recalculated if the size or filecount
3061 end up negative.
3062
306317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3064 support for a long time. Removed HAVE_SYS_VFS_H.
3065
ea3a6f44 306618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3067
306819. Allow an empty sender to be matched against a lookup in an address list.
3069 Previously the only cases considered were a regular expression, or an
3070 empty pattern.
3071
307220. Exim went into a mad DNS lookup loop when doing a callout where the
3073 host was specified on the transport, if the DNS lookup yielded more than
3074 one IP address.
3075
ea3a6f44
NM
307621. The RFC2047 encoding function was originally intended for short strings
3077 such as real names; it was not keeping to the 75-character limit for
3078 encoded words that the RFC imposes. It now respects the limit, and
3079 generates multiple encoded words if necessary. To be on the safe side, I
3080 have increased the buffer size for the ${rfc2047: expansion operator from
3081 1024 to 2048 bytes.
bbe902f0 3082
ea3a6f44
NM
308322. Failure to deliver a bounce message always caused it to be frozen, even if
3084 there was an errors_to setting on the router. The errors_to setting is now
3085 respected.
bbe902f0
PH
3086
308723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3088 canonical form (fully expanded) before being placed in
3089 $sender_host_address.
3090
309124. Updated eximstats to version 1.33
3092
ea3a6f44
NM
309325. Include certificate and key file names in error message when GnuTLS fails
3094 to set them up, because the GnuTLS error message doesn't include the name
3095 of the failing file when there is a problem reading it.
bbe902f0
PH
3096
309726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3098 As per change 25.
bbe902f0 3099
ea3a6f44
NM
310027. Reset the locale to "C" after calling embedded Perl, in case it was changed
3101 (this can affect the format of dates).
bbe902f0 3102
ea3a6f44
NM
310328. exim_tidydb, when checking for the continued existence of a message for
3104 which it has found a message-specific retry record, was not finding
3105 messages that were in split spool directories. Consequently, it was
3106 deleting retry records that should have stayed in existence.
bbe902f0
PH
3107
310829. eximstats updated to version 1.35
3109 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3110 1.35 - bugfix such that pie charts by volume are generated correctly
3111
ea3a6f44
NM
311230. The SPA authentication driver was not abandoning authentication and moving
3113 on to the next authenticator when an expansion was forced to fail,
3114 contradicting the general specification for all authenticators. Instead it
3115 was generating a temporary error. It now behaves as specified.
bbe902f0 3116
ea3a6f44
NM
311731. The default ordering of permitted cipher suites for GnuTLS was pessimal
3118 (the order specifies the preference for clients). The order is now AES256,
3119 AES128, 3DES, ARCFOUR128.
bbe902f0 3120
ea3a6f44
NM
312131. Small patch to Sieve code - explicitly set From: when generating an
3122 autoreply.
bbe902f0 3123
ea3a6f44
NM
312432. Exim crashed if a remote delivery caused a very long error message to be
3125 recorded - for instance if somebody sent an entire SpamAssassin report back
3126 as a large number of 550 error lines. This bug was coincidentally fixed by
3127 increasing the size of one of Exim's internal buffers (big_buffer) that
3128 happened as part of the Exiscan merge. However, to be on the safe side, I
3129 have made the code more robust (and fixed the comments that describe what
3130 is going on).
bbe902f0 3131
ea3a6f44
NM
313233. Some experimental protocols are using DNS PTR records for new purposes. The
3133 keys for these records are domain names, not reversed IP addresses. The
3134 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3135 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3136 CAN-2005-0021
3137
ea3a6f44
NM
313834. The host_aton() function is supposed to be passed a string that is known
3139 to be a valid IP address. However, in the case of IPv6 addresses, it was
3140 not checking this. This is a hostage to fortune. Exim now panics and dies
3141 if the condition is not met. A case was found where this could be provoked
3142 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3143 components; fortuitously, this particular loophole had already been fixed
3144 by change 4.50/55 or 4.44/33 above.
3145
3146 If there are any other similar loopholes, the new check in host_aton()
3147 itself should stop them being exploited. The report I received stated that
3148 data on the command line could provoke the exploit when Exim was running as
3149 exim, but did not say which command line option was involved. All I could
3150 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3151 running as the user.
bbe902f0
PH
3152 CAN-2005-0021
3153
ea3a6f44
NM
315435. There was a buffer overflow vulnerability in the SPA authentication code
3155 (which came originally from the Samba project). I have added a test to the
3156 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3157 CAN-2005-0022
3158
ea3a6f44
NM
315936. The daemon start-up calls getloadavg() while still root for those OS that
3160 need the first call to be done as root, but it missed one case: when
3161 deliver_queue_load_max is set with deliver_drop_privilege. This is
3162 necessary for the benefit of the queue runner, because there is no re-exec
3163 when deliver_drop_privilege is set.
bbe902f0 3164
ea3a6f44
NM
316537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3166 was in use, was not putting the data itself into the right store pool;
3167 consequently, it could be overwritten for a subsequent message in the same
3168 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3169 the caching.)
bbe902f0 3170
ea3a6f44
NM
317138. Sometimes the final signoff response after QUIT could fail to get
3172 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3173 < 0 before doing a fflush(). This bug looks as though it goes back to the
3174 introduction of TLS in release 3.20, but "sometimes" must have been rare
3175 because the tests only now provoked it.
bbe902f0
PH
3176
3177
495ae4b0
PH
3178Exim version 4.43
3179-----------------
3180
3181 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3182 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3183 Now it returns an integer. A number of calls were still expecting a T/F
3184 return. Fortuitously, in all cases, the tests worked in OK situations,
3185 which is the norm. However, things would have gone wrong on any write
3186 failures on the smtp file descriptor. This function is used when sending
3187 messages over SMTP and also when doing verify callouts.
3188
3189 2. When Exim is called to do synchronous delivery of a locally submitted
3190 message (the -odf or -odi options), it no longer closes stderr before doing
3191 the delivery.
3192
3193 3. Implemented the mua_wrapper option.
3194
3195 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3196
3197 5. Implemented the functions header_remove(), header_testname(),
3198 header_add_at_position(), and receive_remove_recipient(), and exported them
3199 to local_scan().
3200
3201 6. If an ACL "warn" statement specified the addition of headers, Exim already
3202 inserted X-ACL-Warn: at the start if there was no header name. However, it
3203 was not making this test for the second and subsequent header lines if
3204 there were newlines in the string. This meant that an invalid header could
3205 be inserted if Exim was badly configured.
3206
3207 7. Allow an ACL "warn" statement to add header lines at the start or after all
3208 the Received: headers, as well as at the end.
3209
3210 8. Added the rcpt_4xx retry error code.
3211
3212 9. Added postmaster_mailfrom=xxx to callout verification option.
3213
321410. Added mailfrom=xxxx to the callout verification option, for verify=
3215 header_sender only.
3216
321711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3218 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3219
322012. Inserted some casts to stop certain compilers warning when using pointer
3221 differences as field lengths or precisions in printf-type calls (mostly
3222 affecting debugging statements).
3223
322413. Added optional readline() support for -be (dynamically loaded).
3225
322614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3227 same clock tick as a message's arrival, so that its received time was the
3228 same as the "first fail" time on the retry record, and that message
3229 remained on the queue past the ultimate address timeout, every queue runner
3230 would try a delivery (because it was past the ultimate address timeout) but
3231 after another failure, the ultimate address timeout, which should have then
3232 bounced the address, did not kick in. This was a "< instead of <=" error;
3233 in most cases the first failure would have been in the next clock tick
3234 after the received time, and all would be well.
3235
323615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3237 being recognized when the domain list was tested by the match_domain
3238 condition in an expansion string.
3239
324016. Added the ${str2b64: operator.
3241
324217. Exim was always calling setrlimit() to set a large limit for the number of
3243 processes, without checking whether the existing limit was already
3244 adequate. (It did check for the limit on file descriptors.) Furthermore,
3245 errors from getrlimit() and setrlimit() were being ignored. Now they are
3246 logged to the main and panic logs, but Exim does carry on, to try to do its
3247 job under whatever limits there are.
3248
324918. Imported PCRE 5.0.
3250
325119. Trivial typo in log message " temporarily refused connection" (the leading
3252 space).
3253
325420. If the log selector return_path_on_delivery was set and an address was
3255 redirected to /dev/null, the delivery process crashed because it assumed
3256 that a return path would always be set for a "successful" delivery. In this
3257 case, the whole delivery is bypassed as an optimization, and therefore no
3258 return path is set.
3259
326021. Internal re-arrangement: the function for sending a challenge and reading
3261 a response while authentication was assuming a zero-terminated challenge
3262 string. It's now changed to take a pointer and a length, to allow for
3263 binary data in such strings.
3264
326522. Added the cyrus_sasl authenticator (code supplied by MBM).
3266
326723. Exim was not respecting finduser_retries when seeking the login of the
3268 uid under which it was called; it was always trying 10 times. (The default
3269 setting of finduser_retries is zero.) Also, it was sleeping after the final
3270 failure, which is pointless.
3271
327224. Implemented tls_on_connect_ports.
3273
327425. Implemented acl_smtp_predata.
3275
327626. If the domain in control=submission is set empty, Exim assumes that the
3277 authenticated id is a complete email address when it generates From: or
3278 Sender: header lines.
3279
328027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3281 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3282 chown and chgrp in /bin and hostname in /usr/bin.
3283
328428. Exim was keeping the "process log" file open after each use, just as it
3285 does for the main log. This opens the possibility of it remaining open for
3286 long periods when the USR1 signal hits a daemon. Occasional processlog
3287 errors were reported, that could have been caused by this. Anyway, it seems
3288 much more sensible not to leave this file open at all, so that is what now
3289 happens.
3290
329129. The long-running daemon process does not normally write to the log once it
3292 has entered its main loop, and it closes the log before doing so. This is
3293 so that log files can straightforwardly be renamed and moved. However,
3294 there are a couple of unusual error situations where the daemon does write
3295 log entries, and I had neglected to close the log afterwards.
3296
329730. The text of an SMTP error response that was received during a remote
3298 delivery was being truncated at 512 bytes. This is too short for some of
3299 the long messages that one sometimes sees. I've increased the limit to
3300 1024.
3301
330231. It is now possible to make retry rules that apply only when a message has a
3303 specific sender, in particular, an empty sender.
3304
330532. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3306 it possible to be selective about when SMTP synchronization is enforced.
3307
330833. Added "control = caseful_local_part" and "control = "caselower_local_part".
3309
331032. Implemented hosts_connection_nolog.
3311
331233. Added an ACL for QUIT.
3313
331434. Setting "delay_warning=" to disable warnings was not working; it gave a
3315 syntax error.
3316
331735. Added mailbox_size and mailbox_filecount to appendfile.
3318
331936. Added control = no_multiline_responses to ACLs.
3320
332137. There was a bug in the logic of the code that waits for the clock to tick
3322 in the case where the clock went backwards by a substantial amount such
3323 that the microsecond fraction of "now" was more than the microsecond
3324 fraction of "then" (but the whole seconds number was less).
3325
332638. Added support for the libradius Radius client library this is found on
3327 FreeBSD (previously only the radiusclient library was supported).
3328
3329
3330Exim version 4.42
3331-----------------
3332
3333 1. When certain lookups returned multiple values in the form name=value, the
3334 quoting of the values was not always being done properly. Specifically:
3335 (a) If the value started with a double quote, but contained no whitespace,
3336 it was not quoted.
3337 (b) If the value contained whitespace other than a space character (i.e.
3338 tabs or newlines or carriage returns) it was not quoted.
3339 This fix has been applied to the mysql and pgsql lookups by writing a
3340 separate quoting function and calling it from the lookup code. The fix
3341 should probably also be applied to nisplus, ibase and oracle lookups, but
3342 since I cannot test any of those, I have not disturbed their existing code.
3343
3344 2. A hit in the callout cache for a specific address caused a log line with no
3345 reason for rejecting RCPT. Now it says "Previous (cached) callout
3346 verification failure".
3347
3348 3. There was an off-by-one bug in the queryprogram router. An over-long
3349 return line was truncated at 256 instead of 255 characters, thereby
3350 overflowing its buffer with the terminating zero. As well as fixing this, I
3351 have increased the buffer size to 1024 (and made a note to document this).
3352
3353 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3354 when Exim is waiting for an SMTP response from a remote server, Exim
3355 restarts its select() call on the socket, thereby resetting its timeout.
3356 This is not a problem when such interrupts are rare. Somebody set up a cron
3357 job to run exiwhat every 2 minutes, which is less than the normal select()
3358 timeout (5 or 10 minutes). This meant that the select() timeout never
3359 kicked in because it was always reset. I have fixed this by comparing the
3360 time when an interrupt arrives with the time at the start of the first call
3361 to select(). If more time than the timeout has elapsed, the interrupt is
3362 treated as a timeout.
3363
3364 5. Some internal re-factoring in preparation for the addition of Sieve
3365 extensions (by MH). In particular, the "personal" test is moved to a
3366 separate function, and given an option for scanning Cc: and Bcc: (which is
3367 not set for Exim filters).
3368
3369 6. When Exim created an email address using the login of the caller as the
3370 local part (e.g. when creating a From: or Sender: header line), it was not
3371 quoting the local part when it contained special characters such as @.
3372
3373 7. Installed new OpenBSD configuration files.
3374
3375 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3376 try to make them clearer.
3377
3378 9. Callout options, other than the timeout value, were being ignored when
3379 verifying sender addresses in header lines. For example, when using
3380
3381 verify = header_sender/callout=no_cache
3382
3383 the cache was (incorrectly) being used.
3384
338510. Added a missing instance of ${EXE} to the exim_install script; this affects
3386 only the Cygwin environment.
3387
338811. When return_path_on_delivery was set as a log selector, if different remote
3389 addresses in the same message used different return paths and parallel
3390 remote delivery occurred, the wrong values would sometimes be logged.
3391 (Whenever a remote delivery process finished, the return path value from
3392 the most recently started remote delivery process was logged.)
3393
339412. RFC 3848 specifies standard names for the "with" phrase in Received: header
3395 lines when AUTH and/or TLS are in use. This is the "received protocol"
3396 field. Exim used to use "asmtp" for authenticated SMTP, without any
3397 indication (in the protocol name) for TLS use. Now it follows the RFC and
3398 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3399 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3400 names appear in log lines as well as in Received: header lines.
3401
340213. Installed MH's patches for Sieve to add the "copy" and "vacation"
3403 extensions, and comparison tests, and to fix some bugs.
3404
340514. Changes to the "personal" filter test:
3406
3407 (1) The test was buggy in that it was just doing the equivalent of
3408 "contains" tests on header lines. For example, if a user's address was
3409 anne@some.where, the "personal" test would incorrectly be true for
3410
3411 To: susanne@some.where
3412
3413 This test is now done by extracting each address from the header in turn,
3414 and checking the entire address. Other tests that are part of "personal"
3415 are now done using regular expressions (for example, to check local parts
3416 of addresses in From: header lines).
3417
3418 (2) The list of non-personal local parts in From: addresses has been
3419 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3420 taken from the Sieve specification recommendations.
3421
3422 (3) If the message contains any header line starting with "List-" it is
3423 treated as non-personal.
3424
3425 (4) The test for "circular" in the Subject: header line has been removed
3426 because it now seems ill-conceived.
3427
342815. Minor typos in src/EDITME comments corrected.
3429
343016. Installed latest exipick from John Jetmore.
3431
343217. If headers_add on a router specified a text string that was too long for
3433 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3434 of string_sprintf() is now avoided.
3435
343618. $message_body_size was not set (it was always zero) when running the DATA
3437 ACL and the local_scan() function.
3438
343919. For the "mail" command in an Exim filter, no default was being set for
3440 the once_repeat time, causing a random time value to be used if "once" was
3441 specified. (If the value happened to be <= 0, no repeat happened.) The
3442 default is now 0s, meaning "never repeat". The "vacation" command was OK
3443 (its default is 7d). It's somewhat surprising nobody ever noticed this bug