Remove a few PCRE remnants.
[exim.git] / doc / doc-txt / ChangeLog
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1Change log file for Exim from version 4.21
2-------------------------------------------
3
867fcbf5
PP
4Exim version 4.77
5-----------------
6
7PP/01 Solaris build fix for Oracle's LDAP libraries.
8 Bugzilla 1109, patch from Stephen Usher.
9
f1a29782
TF
10TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
11
ab42bd23
TK
12TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
13 whitespace trailer
867fcbf5 14
0ca0cf52
TF
15TF/02 Fix a couple more cases where we did not log the error message
16 when unlink() failed. See also change 4.74-TF/03.
17
921b12ca
TF
18TF/03 Make the exiwhat support code safe for signals. Previously Exim might
19 lock up or crash if it happened to be inside a call to libc when it
20 got a SIGUSR1 from exiwhat.
21
22 The SIGUSR1 handler appends the current process status to the process
23 log which is later printed by exiwhat. It used to use the general
24 purpose logging code to do this, but several functions it calls are
25 not safe for signals.
26
27 The new output code in the SIGUSR1 handler is specific to the process
28 log, and simple enough that it's easy to inspect for signal safety.
29 Removing some special cases also simplifies the general logging code.
30 Removing the spurious timestamps from the process log simplifies
31 exiwhat.
32
c99ce5c9
TF
33TF/04 Improved ratelimit ACL condition.
34
35 The /noupdate option has been deprecated in favour of /readonly which
36 has clearer semantics. The /leaky, /strict, and /readonly update modes
37 are mutually exclusive. The update mode is no longer included in the
38 database key; it just determines when the database is updated. (This
39 means that when you upgrde Exim will forget old rate measurements.)
40
41 Exim now checks that the per_* options are used with an update mode that
42 makes sense for the current ACL. For example, when Exim is processing a
43 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
44 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
45 must specify per_mail/readonly. If you omit the update mode it defaults to
46 /leaky where that makes sense (as before) or /readonly where required.
47
48 The /noupdate option is now undocumented but still supported for
49 backwards compatibility. It is equivalent to /readonly except that in
50 ACLs where /readonly is required you may specify /leaky/noupdate or
51 /strict/noupdate which are treated the same as /readonly.
52
53 A useful new feature is the /count= option. This is a generalization
54 of the per_byte option, so that you can measure the throughput of other
55 aggregate values. For example, the per_byte option is now equivalent
56 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
57
58 The per_rcpt option has been generalized using the /count= mechanism
59 (though it's more complicated than the per_byte equivalence). When it is
60 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
61 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
62 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
63 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
64 Note that using per_rcpt with a non-readonly update mode in more than
65 one ACL will cause the recipients to be double-counted. (The per_mail
66 and per_byte options don't have this problem.)
67
68 The handling of very low rates has changed slightly. If the computed rate
69 is less than the event's count (usually one) then this event is the first
70 after a long gap. In this case the rate is set to the same as this event's
71 count, so that the first message of a spam run is counted properly.
72
73 The major new feature is a mechanism for counting the rate of unique
74 events. The new per_addr option counts the number of different
75 recipients that someone has sent messages to in the last time period. It
76 behaves like per_rcpt if all the recipient addresses are different, but
77 duplicate recipient addresses do not increase the measured rate. Like
78 the /count= option this is a general mechanism, so the per_addr option
79 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
80 example, measure the rate that a client uses different sender addresses
81 with the options per_mail/unique=$sender_address. There are further
82 details in the main documentation.
83
3634fc25
TF
84TF/05 Removed obsolete $Cambridge$ CVS revision strings.
85
0ca0cf52 86
10906672
PP
87Exim version 4.76
88-----------------
89
90PP/01 The new ldap_require_cert option would segfault if used. Fixed.
91
754a0503
PP
92PP/02 Harmonised TLS library version reporting; only show if debugging.
93 Layout now matches that introduced for other libraries in 4.74 PP/03.
94
c0c7b2da
PP
95PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
96
e97d1f08
PP
97PP/04 New "dns_use_edns0" global option.
98
084c1d8c
PP
99PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
100 Bugzilla 1098.
101
4e7ee012
PP
102PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
103 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 104
c8d52a00
PP
105TK/01 Updated PolarSSL code to 0.14.2.
106 Bugzilla 1097. Patch from Andreas Metzler.
107
54e7ce4a
PP
108PP/07 Catch divide-by-zero in ${eval:...}.
109 Fixes bugzilla 1102.
110
5ee6f336
PP
111PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
112 Bugzilla 1104.
113
c8d52a00 114TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
115 format-string attack -- SECURITY: remote arbitrary code execution.
116
117TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
118 time unintentionally subject to list matching rules, letting the header
119 cause arbitrary Exim lookups (of items which can occur in lists, *not*
120 arbitrary string expansion). This allowed for information disclosure.
121
122PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
123 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 124
10906672 125
aa097c4c
NM
126Exim version 4.75
127-----------------
128
4c9ef03a 129NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
130 Bugzilla 1073
131
7f3d9eff
TF
132TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
133 This fixes portability to compilers other than gcc, notably
134 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
135
159f52d2
TF
136TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
137 makefiles for portability to HP-UX and POSIX correctness.
138
0cc9542a
PP
139PP/01 Permit LOOKUP_foo enabling on the make command-line.
140 Also via indented variable definition in the Makefile.
141 (Debugging by Oliver Heesakkers).
142
f7274286
PP
143PP/02 Restore caching of spamd results with expanded spamd_address.
144 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
145
7b797365
PP
146PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
147 Improves build reliability. Fix from: Frank Elsner
148
caacae52
NM
149NM/02 Fix wide character breakage in the rfc2047 coding
150 Fixes bug 1064. Patch from Andrey N. Oktyabrski
151
09dcaba9
NM
152NM/03 Allow underscore in dnslist lookups
153 Fixes bug 1026. Patch from Graeme Fowler
154
bc19a55b
PP
155PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
156 Code patches from Adam Ciarcinski of NetBSD.
caacae52 157
bd4c9759
NM
158NM/04 Fixed exiqgrep to cope with mailq missing size issue
159 Fixes bug 943.
160
b72aab72
PP
161PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
162 is logged, to avoid truncation. Patch from John Horne.
163
2fe76745
PP
164PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
165 Patch from Jakob Hirsch.
166
76aa570c
PP
167PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
168 SQL string expansion failure details.
169 Patch from Andrey Oktyabrski.
170
f1e5fef5
PP
171PP/08 Bugzilla 486: implement %M datestamping in log filenames.
172 Patch from Simon Arlott.
173
4d805ee9
PP
174PP/09 New lookups functionality failed to compile on old gcc which rejects
175 extern declarations in function scope.
176 Patch from Oliver Fleischmann
177
cd59ab18
PP
178PP/10 Use sig_atomic_t for flags set from signal handlers.
179 Check getgroups() return and improve debugging.
180 Fixed developed for diagnosis in bug 927 (which turned out to be
181 a kernel bug).
182
332f5cf3
PP
183PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
184 Patch from Mark Zealey.
185
29cfeb94
PP
186PP/12 Bugzilla 1056: Improved spamd server selection.
187 Patch from Mark Zealey.
188
660242ad
PP
189PP/13 Bugzilla 1086: Deal with maildir quota file races.
190 Based on patch from Heiko Schlittermann.
191
bc4bc4c5
PP
192PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
193 Patch from Uwe Doering, sign-off by Michael Haardt.
194
2e64baa9
NM
195NM/05 Fix to spam.c to accommodate older gcc versions which dislike
196 variable declaration deep within a block. Bug and patch from
197 Dennis Davis.
198
bddd7526
PP
199PP/15 lookups-Makefile IRIX compatibilty coercion.
200
6bac1a9a
PP
201PP/16 Make DISABLE_DKIM build knob functional.
202
552193f0
NM
203NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
204 Patch by Simon Arlott
baeee2c1 205
1b587e48
TF
206TF/03 Fix valgrind.h portability to C89 compilers that do not support
207 variable argument macros. Our copy now differs from upstream.
208
aa097c4c 209
8c07b69f
TF
210Exim version 4.74
211-----------------
212
213TF/01 Failure to get a lock on a hints database can have serious
214 consequences so log it to the panic log.
215
c0ea85ab
TF
216TF/02 Log LMTP confirmation messages in the same way as SMTP,
217 controlled using the smtp_confirmation log selector.
218
0761d44e
TF
219TF/03 Include the error message when we fail to unlink a spool file.
220
0a349494
PP
221DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
222 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
223 for maintaining out-of-tree patches for some time.
224
225PP/01 Bugzilla 139: Documentation and portability issues.
226 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
227 Handle per-OS dynamic-module compilation flags.
228
fea24b2e
PP
229PP/02 Let /dev/null have normal permissions.
230 The 4.73 fixes were a little too stringent and complained about the
231 permissions on /dev/null. Exempt it from some checks.
232 Reported by Andreas M. Kirchwitz.
233
6545de78
PP
234PP/03 Report version information for many libraries, including
235 Exim version information for dynamically loaded libraries. Created
236 version.h, now support a version extension string for distributors
237 who patch heavily. Dynamic module ABI change.
238
1670ef10
PP
239PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
240 privilege escalation vulnerability whereby the Exim run-time user
241 can cause root to append content of the attacker's choosing to
242 arbitrary files.
243
c0886197
PP
244PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
245 (Wolfgang Breyha)
246
b7487bce
PP
247PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
248 If dropping privileges for untrusted macros, we disabled normal logging
249 on the basis that it would fail; for the Exim run-time user, this is not
250 the case, and it resulted in successful deliveries going unlogged.
251 Fixed. Reported by Andreas Metzler.
252
8c07b69f 253
97fd1e48 254Exim version 4.73
ed7f7860 255-----------------
97fd1e48
PP
256
257PP/01 Date: & Message-Id: revert to normally being appended to a message,
258 only prepend for the Resent-* case. Fixes regression introduced in
259 Exim 4.70 by NM/22 for Bugzilla 607.
260
6901c596
PP
261PP/02 Include check_rfc2047_length in configure.default because we're seeing
262 increasing numbers of administrators be bitten by this.
263
a8c8d6b5
JJ
264JJ/01 Added DISABLE_DKIM and comment to src/EDITME
265
77bb000f
PP
266PP/03 Bugzilla 994: added openssl_options main configuration option.
267
a29e5231
PP
268PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
269
ec5a0394 270PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 271
55c75993
PP
272PP/06 Adjust NTLM authentication to handle SASL Initial Response.
273
453a6645 274PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
275 without a peer certificate, leading to a segfault because of an
276 assumption that peers always have certificates. Be a little more
453a6645
PP
277 paranoid. Problem reported by Martin Tscholak.
278
8544e77a
PP
279PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
280 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
281 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
282 CL also introduces -bmalware, various -d+acl logging additions and
283 more caution in buffer sizes.
8544e77a 284
83e029d5
PP
285PP/09 Implemented reverse_ip expansion operator.
286
ed7f7860
PP
287PP/10 Bugzilla 937: provide a "debug" ACL control.
288
7d9f747b
PP
289PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
290
4b2241d2
PP
291PP/12 Bugzilla 973: Implement --version.
292
10385c15
PP
293PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
294
dbc4b90d
PP
295PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
296
532be449
PP
297PP/15 Bugzilla 816: support multiple condition rules on Routers.
298
6a8de854 299PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
300 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
301 ignore trailing whitespace.
6a8de854 302
5dc43717
JJ
303JJ/02 prevent non-panic DKIM error from being sent to paniclog
304
305JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
306 "exim" to be used
55c75993 307
3346ab01
PP
308PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
309 Notification from Dr Andrew Aitchison.
310
491fab4c
PP
311PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
312 ExtendedDetectionInfo response format.
313 Notification from John Horne.
314
13eb9497
PP
315PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
316 compatible.
317
318PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
319 XSL and documented dependency on system catalogs, with examples of how
320 it normally works.
321
7f36d675
DW
322DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
323 access.
324
c1d94452
DW
325DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
326 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
327 configuration file which is writeable by the Exim user or group.
328
e2f5dc15
DW
329DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
330 of configuration files to cover files specified with the -C option if
331 they are going to be used with root privileges, not just the default
332 configuration file.
333
cd25e41d
DW
334DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
335 option (effectively making it always true).
336
261dc43e
DW
337DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
338 files to be used while preserving root privileges.
339
fa32850b
DW
340DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
341 that rogue child processes cannot use them.
342
79d4bc3d
PP
343PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
344 run-time user, instead of root.
345
43236f35 346PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
347 Exim run-time user without dropping privileges.
348
fb08281f
DW
349DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
350 result string, instead of calling string_vformat() twice with the same
351 arguments.
3346ab01 352
74935b98
DW
353DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
354 for other users. Others should always drop root privileges if they use
355 -C on the command line, even for a whitelisted configure file.
356
90b6341f
DW
357DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
358
57730b52
ML
359NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
360
66581d1e 361
465e92cf
JJ
362Exim version 4.72
363-----------------
364
453a6645
PP
365JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
366 $data_path, and $header_path variables; fixed documentation bugs and
367 typos
465e92cf 368
453a6645
PP
369JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
370 exipick to access non-standard spools, including the "frozen" queue
371 (Finput)
edae0343 372
9bd3e22c
NM
373NM/01 Bugzilla 965: Support mysql stored procedures.
374 Patch from Alain Williams
375
bb576ff7
NM
376NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
377
5a1a5845
NM
378NM/03 Bugzilla 955: Documentation fix for max_rcpts.
379 Patch from Andreas Metzler
380
981a9fad
NM
381NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
382 Patch from Kirill Miazine
383
7fc497ee
NM
384NM/05 Bugzilla 671: Added umask to procmail example.
385
1a41defa
JJ
386JJ/03 installed exipick 20100323.0, fixing doc bug
387
a466095c 388NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 389 directory. Notification and patch from Dan Rosenberg.
a466095c 390
94a6bd0b
NM
391TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
392
393TK/02 Improve log output when DKIM signing operation fails.
394
395MH/01 Treat the transport option dkim_domain as a colon separated
396 list, not as a single string, and sign the message with each element,
397 omitting multiple occurences of the same signer.
398
c1b141a8
NM
399NM/07 Null terminate DKIM strings, Null initialise DKIM variable
400 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 401
b26eacf1 402NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
403 Patch by Simon Arlott
404
179c5980 405PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 406 MBX locking. Notification from Dan Rosenberg.
179c5980 407
9bd3e22c 408
7c6d71af
NM
409Exim version 4.71
410-----------------
411
7d9f747b 412TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 413
f013fb92
NM
414NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
415
0eb8eedd
NM
416NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
417
663ee6d9
NM
418NM/03 Bugzilla 847: Enable DNSDB lookup by default.
419
177ebd9b
NM
420NM/04 Bugzilla 915: Flag broken perl installation during build.
421
7c6d71af 422
210f147e
NM
423Exim version 4.70
424-----------------
425
cdd3bb85 426TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 427 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
428
429TK/02 Write list of recipients to X-Envelope-Sender header when building
430 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 431 Hirsch).
cdd3bb85
TK
432
433TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
434 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 435 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
436
437TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
438 by Mark Daniel Reidel <mr@df.eu>.
439
210f147e
NM
440NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
441 When building exim an external PCRE library is now needed -
442 PCRE is a system library on the majority of modern systems.
443 See entry on PCRE_LIBS in EDITME file.
444
deafd5b3
NM
445NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
446 conversation. Added nologin parameter to request.
7d9f747b 447 Patch contributed by Kirill Miazine.
deafd5b3 448
089793a4
TF
449TF/01 Do not log submission mode rewrites if they do not change the address.
450
5f16ca82
TF
451TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
452
dae9d94e 453NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 454 log files in place. Contributed by Roberto Lima.
dae9d94e 455
7d9f747b 456NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 457
06864c44
TF
458TF/03 Bugzilla 615: When checking the local_parts router precondition
459 after a local_part_suffix or local_part_prefix option, Exim now
460 does not use the address's named list lookup cache, since this
461 contains cached lookups for the whole local part.
462
65a7d8c3 463NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 464 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 465
23510047 466TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 467
7d9f747b 468NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 469
7d8eec3a 470NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 471 Patch provided by Jan Srzednicki.
6c588e74 472
89dec7b6
TF
473TF/05 Leading white space used to be stripped from $spam_report which
474 wrecked the formatting. Now it is preserved.
5f28a6e8 475
a99de90c
TF
476TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
477 that they are available at delivery time.
478
e2803e40
TF
479TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
480
7199e1ee
TF
481TF/08 TLS error reporting now respects the incoming_interface and
482 incoming_port log selectors.
483
e276e04b
TF
484TF/09 Produce a more useful error message if an SMTP transport's hosts
485 setting expands to an empty string.
486
ce552449 487NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 488 Patch provided by Phil Pennock.
ce552449 489
e765a0f1 490NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 491 Patch provided by Richard Godbee.
e765a0f1 492
4f054c63 493NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 494 acl_smtp_notquit, added index entry.
4f054c63 495
7d9f747b
PP
496NM/09 Bugzilla 787: Potential buffer overflow in string_format.
497 Patch provided by Eugene Bujak.
24c929a2 498
7d9f747b
PP
499NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
500 accept(). Patch provided by Maxim Dounin.
cf73943b 501
b52bc06e 502NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 503 Patch provided by Phil Pennock.
b52bc06e 504
447de4b0
NM
505NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
506
4c69d561 507NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 508 Patch provided by Brad "anomie" Jorsch.
4c69d561 509
d5c39246 510NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 511 Patch provided by Dean Brooks.
9b989985 512
0b23848a
TK
513TK/05 Add native DKIM support (does not depend on external libraries).
514
8f3414a1 515NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 516 Patch provided by Graeme Fowler.
e2aacdfd 517
fb6f955d
NM
518NM/16 Bugzilla 851: Documentation example syntax fix.
519
520NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 521
7d9f747b
PP
522NM/18 Bugzilla 894: Fix issue with very long lines including comments in
523 lsearch.
dbb0bf41 524
7d9f747b
PP
525NM/19 Bugzilla 745: TLS version reporting.
526 Patch provided by Phil Pennock.
f3766eb5 527
7d9f747b
PP
528NM/20 Bugzilla 167: bool: condition support.
529 Patch provided by Phil Pennock.
36f12725 530
7d9f747b
PP
531NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
532 clients. Patch provided by Phil Pennock.
e6060e2c 533
7d9f747b
PP
534NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
535 Patch provided by Brad "anomie" Jorsch.
5eb690a1 536
7d9f747b
PP
537NM/23 Bugzilla 687: Fix misparses in eximstats.
538 Patch provided by Heiko Schlittermann.
d5c13d66 539
7d9f747b
PP
540NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
541 Patch provided by Heiko Schlittermann.
b2335c0b 542
7d9f747b 543NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 544 plus update to original patch.
f4cd9433 545
7d9f747b 546NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 547
7d9f747b
PP
548NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
549 Patch provided by David Brownlee.
8dc71ab3 550
7d9f747b 551NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 552
7d9f747b 553NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 554
7d9f747b 555NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 556
7d9f747b 557NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 558
17792b53 559NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 560 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 561
7d9f747b
PP
562NM/33 Bugzilla 898: Transport filter timeout fix.
563 Patch by Todd Rinaldo.
52383f8f 564
7d9f747b
PP
565NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
566 Patch by Serge Demonchaux.
5ca6d115 567
7d9f747b
PP
568NM/35 Bugzilla 39: Base64 decode bug fixes.
569 Patch by Jakob Hirsch.
baee9eee 570
7d9f747b 571NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 572
7d9f747b 573NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 574
7d9f747b 575NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 576
7d9f747b 577NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 578
deafd5b3 579
47db1125
NM
580Exim version 4.69
581-----------------
582
4b3504d0
TK
583TK/01 Add preliminary DKIM support. Currently requires a forked version of
584 ALT-N's libdkim that I have put here:
585 http://duncanthrax.net/exim-experimental/
586
587 Note to Michael Haardt: I had to rename some vars in sieve.c. They
588 were called 'true' and it seems that C99 defines that as a reserved
589 keyword to be used with 'bool' variable types. That means you could
590 not include C99-style headers which use bools without triggering
591 build errors in sieve.c.
592
81ea09ca
NM
593NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
594 as mailq or other aliases. Changed the --help handling significantly
595 to do whats expected. exim_usage() emits usage/help information.
596
f13cddcb
SC
597SC/01 Added the -bylocaldomain option to eximstats.
598
7d9f747b 599NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 600
7d9f747b 601NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 602
7d9f747b 603NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
604
605
eb4c0de6
PH
606Exim version 4.68
607-----------------
608
609PH/01 Another patch from the Sieve maintainer.
610
6a3bceb1
PH
611PH/02 When an IPv6 address is converted to a string for single-key lookup
612 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
613 dots are used instead of colons so that keys in lsearch files need not
614 contain colons. This was done some time before quoting was made available
615 in lsearch files. However, iplsearch files do require colons in IPv6 keys
616 (notated using the quote facility) so as to distinguish them from IPv4
617 keys. This meant that lookups for IP addresses in host lists did not work
618 for iplsearch lookups.
619
620 This has been fixed by arranging for IPv6 addresses to be expressed with
621 colons if the lookup type is iplsearch. This is not incompatible, because
622 previously such lookups could never work.
623
624 The situation is now rather anomolous, since one *can* have colons in
625 ordinary lsearch keys. However, making the change in all cases is
626 incompatible and would probably break a number of configurations.
627
2e30fa9d
TK
628TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
629 version.
630
0806a9c5
MH
631MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
632 conversion specification without a maximum field width, thereby enabling
633 a rogue spamd server to cause a buffer overflow. While nobody in their
634 right mind would setup Exim to query an untrusted spamd server, an
635 attacker that gains access to a server running spamd could potentially
636 exploit this vulnerability to run arbitrary code as the Exim user.
637
ae276964
TK
638TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
639 $primary_hostname instead of what libspf2 thinks the hosts name is.
640
0f2cbd1b
MH
641MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
642 a directory entry by the name of the lookup key. Previously, if a
643 symlink pointed to a non-existing file or a file in a directory that
644 Exim lacked permissions to read, a lookup for a key matching that
645 symlink would fail. Now it is enough that a matching directory entry
646 exists, symlink or not. (Bugzilla 503.)
647
2b85bce7
PH
648PH/03 The body_linecount and body_zerocount variables are now exported in the
649 local_scan API.
650
93655c46
PH
651PH/04 Added the $dnslist_matched variable.
652
6c512171
PH
653PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
654 This means they are set thereafter only if the connection becomes
655 encrypted.
656
657PH/06 Added the client_condition to authenticators so that some can be skipped
658 by clients under certain conditions.
659
aa6dc513
PH
660PH/07 The error message for a badly-placed control=no_multiline_responses left
661 "_responses" off the end of the name.
662
a96603a0
PH
663PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
664
8f240103
PH
665PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
666 (without spaces) instead of just copying the configuration text.
667
668PH/10 Added the /noupdate option to the ratelimit ACL condition.
669
d677b2f2
PH
670PH/11 Added $max_received_linelength.
671
d52120f2
PH
672PH/12 Added +ignore_defer and +include_defer to host lists.
673
64f2600a
PH
674PH/13 Installed PCRE version 7.2. This needed some changes because of the new
675 way in which PCRE > 7.0 is built.
676
8669f003
PH
677PH/14 Implemented queue_only_load_latch.
678
a4dc33a8
PH
679PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
680 MAIL command. The effect was to mangle the value on 64-bit systems.
681
d6a60c0f
PH
682PH/16 Another patch from the Sieve maintainer.
683
8f128379
PH
684PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
685
8932dffe
PH
686PH/18 If a system quota error occurred while trying to create the file for
687 a maildir delivery, the message "Mailbox is full" was not appended to the
688 bounce if the delivery eventually timed out. Change 4.67/27 below applied
689 only to a quota excession during the actual writing of the file.
d6a60c0f 690
ddea74fa 691PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
692 characters?) which causes problems in log lines. The DN values are now
693 passed through string_printing() before being added to log lines.
694
ddea74fa 695PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
696 and InterBase are left for another time.)
697
ddea74fa
PH
698PH/21 Added message_body_newlines option.
699
ce9f225c
PH
700PH/22 Guard against possible overflow in moan_check_errorcopy().
701
19897d52
PH
702PH/23 POSIX allows open() to be a macro; guard against that.
703
bc64a74d
PH
704PH/24 If the recipient of an error message contained an @ in the local part
705 (suitably quoted, of course), incorrect values were put in $domain and
706 $local_part during the evaluation of errors_copy.
707
eb4c0de6 708
b4ed4da0
PH
709Exim version 4.67
710-----------------
711
22ad45c9
MH
712MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
713 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
714 Jan Srzednicki.
715
b4ed4da0
PH
716PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
717 issue a MAIL command.
718
431b7361
PH
719PH/02 In an ACL statement such as
720
721 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
722
723 if a client was not listed at all, or was listed with a value other than
724 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
725 the condition was not true (as it should be), so access was not denied.
726 The bug was that the ! inversion was incorrectly passed on to the second
727 item. This has been fixed.
728
729PH/03 Added additional dnslists conditions == and =& which are different from
730 = and & when the dns lookup returns more than one IP address.
731
83da1223
PH
732PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
733 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
734
54fc8428
PH
735PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
736 FSYNC, which compiles an option called disable_fsync that allows for
737 bypassing fsync(). The documentation is heavily laced with warnings.
738
34c5e8dd
SC
739SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
740
bbe15da8
PH
741PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
742 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
743 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
744 including adding "make clean"; (3) Added -fPIC when compiling the test
745 dynamically loaded module, to get rid of a warning.
746
0e8a9471
MH
747MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
748 message fails, move_frozen_messages = true and ignore_bounce_errors_after
749 = 0s. The bug is otherwise harmless.
750
f0872424
PH
751PH/07 There was a bug in the dovecot authenticator such that the value of
752 $auth1 could be overwritten, and so not correctly preserved, after a
753 successful authentication. This usually meant that the value preserved by
754 the server_setid option was incorrect.
755
b01dd148
PH
756PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
757
6bf342e1
PH
758PH/09 Installed PCRE release 7.0.
759
273f34d0
PH
760PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
761 run for batched SMTP input. It is now run at the start of every message
762 in the batch. While fixing this I discovered that the process information
763 (output by running exiwhat) was not always getting set for -bs and -bS
764 input. This is fixed, and it now also says "batched" for BSMTP.
765
cf8b11a5
PH
766PH/11 Added control=no_pipelining.
767
41c7c167
PH
768PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
769 patch, slightly modified), and move the expansion of helo_data till after
770 the connection is made in the smtp transport (so it can use these
771 values).
772
9c57cbc0
PH
773PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
774
f3f065bb
PH
775PH/14 Added log_selector = +pid.
776
047bdd8c
PH
777PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
778
0ce9abe6
PH
779PH/16 Add ${if forany and ${if forall.
780
0e22dfd1
PH
781PH/17 Added dsn_from option to vary the From: line in DSNs.
782
4c590bd1
PH
783PH/18 Flush SMTP output before performing a callout, unless control =
784 no_callout_flush is set.
785
09945f1e
PH
786PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
787 was true (the default) a successful delivery failed to delete the retry
788 item, thus causing premature timeout of the address. The bug is now
789 fixed.
790
c51b8e75
PH
791PH/20 Added hosts_avoid_pipelining to the smtp transport.
792
e28326d8
PH
793PH/21 Long custom messages for fakedefer and fakereject are now split up
794 into multiline reponses in the same way that messages for "deny" and
795 other ACL rejections are.
796
75b1493f
PH
797PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
798 with slight modification.
799
7c5214ec
PH
800PH/23 Applied sieve patches from the maintainer "tracking the latest notify
801 draft, changing the syntax and factoring some duplicate code".
802
4311097e
PH
803PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
804 for deliveries of the second and subsequent messages over the same SMTP
805 connection.
806
29f89cad
PH
807PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
808 ${reduce, with only minor "tidies".
809
5e687460
SC
810SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
811
c3611384
PH
812PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
813 expansion side effects.
814
5a11a7b4
PH
815PH/27 When a message times out after an over-quota error from an Exim-imposed
816 quota, the bounce message says "mailbox is full". This message was not
817 being given when it was a system quota that was exceeded. It now should
818 be the same.
819
0e20aff9
MH
820MH/03 Made $recipients available in local_scan(). local_scan() already has
821 better access to the recipient list through recipients_list[], but
822 $recipients can be useful in postmaster-provided expansion strings.
823
ca86f471
PH
824PH/28 The $smtp_command and $smtp_command_argument variables were not correct
825 in the case of a MAIL command with additional options following the
826 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
827 were accidentally chopped off.
828
a14e5636
PH
829PH/29 SMTP synchronization checks are implemented when a command is read -
830 there is a check that no more input is waiting when there shouldn't be
831 any. However, for some commands, a delay in an ACL can mean that it is
832 some time before the response is written. In this time, more input might
833 arrive, invalidly. So now there are extra checks after an ACL has run for
834 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
835 pipelining has not been advertised.
836
ec95d1a6
PH
837PH/30 MH's patch to allow iscntrl() characters to be list separators.
838
42855d71
PH
839PH/31 Unlike :fail:, a custom message specified with :defer: was not being
840 returned in the SMTP response when smtp_return_error_details was false.
841 This has been fixed.
842
57c2c631
PH
843PH/32 Change the Dovecot authenticator to use read() and write() on the socket
844 instead of the C I/O that was originally supplied, because problems were
845 reported on Solaris.
846
58c01c94
PH
847PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
848 Exim which did not show up earlier: it was assuming that a call to
849 SSL_CTX_set_info_callback() might give an error value. In fact, there is
850 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
851 was a macro that became an assignment, so it seemed to work. This has
852 changed to a proper function call with a void return, hence the compile
853 error. Exim's code has been fixed.
854
dee5a20a
PH
855PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
856 cpus.
857
d2ee6114
PH
858PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
859
b2d5182b
PH
860PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
861
79749a79
PH
862PH/37 If a message is not accepted after it has had an id assigned (e.g.
863 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
864 "Completed" line in the log. When some messages of this type were
865 selected by exigrep, they were listed as "not completed". Others were
866 picked up by some special patterns. I have improved the selection
867 criteria to be more general.
79749a79 868
c456d9bb
PH
869PH/38 The host_find_failed option in the manualroute router can now be set
870 to "ignore", to completely ignore a host whose IP address cannot be
871 found. If all hosts are ignored, the behaviour is controlled by the new
872 host_all_ignored option.
873
cd9868ec
PH
874PH/39 In a list of hosts for manualroute, if one item (either because of multi-
875 homing or because of multiple MX records with /mx) generated more than
876 one IP address, and the following item turned out to be the local host,
877 all the secondary addresses of the first item were incorrectly removed
878 from the list, along with the local host and any following hosts (which
879 is what is supposed to happen).
880
ebeaf996
PH
881PH/40 When Exim receives a message, it writes the login name, uid, and gid of
882 whoever called Exim into the -H file. In the case of the daemon it was
883 behaving confusingly. When first started, it used values for whoever
884 started the daemon, but after a SIGHUP it used the Exim user (because it
885 calls itself on a restart). I have changed the code so that it now always
886 uses the Exim user.
887
2679d413
PH
888PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
889 message are rejected with the same error (e.g. no authentication or bad
890 sender address), and a DATA command is nevertheless sent (as can happen
891 with PIPELINING or a stupid MUA), the error message that was given to the
892 RCPT commands is included in the rejection of the DATA command. This is
893 intended to be helpful for MUAs that show only the final error to their
894 users.
895
84024b72
PH
896PH/42 Another patch from the Sieve maintainer.
897
8005d38e
SC
898SC/02 Eximstats - Differentiate between permanent and temporary rejects.
899 Eximstats - Fixed some broken HTML links and added missing column headers
900 (Jez Hancock).
901 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
902 columns for Rejects, Temp Rejects, Ham, and Spam rows.
903
3298c6c6
SC
904SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
905
a43a27c5
PH
906PH/43 Yet another patch from the Sieve maintainer.
907
58eb016e 908PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
909 the response to the final '.' that terminates a message, but only in the
910 case where the client has not sent further data following the '.'
911 (unfortunately, this is allowed). However, in many cases there won't be
912 any further data because there won't be any more messages to send. A call
913 to select() can be used: if it shows that the input is "ready", there is
914 either input waiting, or the socket has been closed. An attempt to read
915 the next input character can distinguish the two cases. Previously, Exim
58eb016e 916 would have sent an OK response which the client would never have see.
563b63fa
PH
917 This could lead to message repetition. This fix should cure that, at
918 least in a lot of common cases.
58eb016e 919
b43a74ea
PH
920PH/45 Do not advertise STARTTLS in response to HELP unless it would be
921 advertised in response to EHLO.
922
b4ed4da0 923
5dd1517f
PH
924Exim version 4.66
925-----------------
926
927PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
928 fixed by 4.65/MH/01 (is this a record?) are fixed:
929
930 (i) An empty string was always treated as zero by the numeric comparison
931 operators. This behaviour has been restored.
932
933 (ii) It is documented that the numeric comparison operators always treat
934 their arguments as decimal numbers. This was broken in that numbers
935 starting with 0 were being interpreted as octal.
936
937 While fixing these problems I realized that there was another issue that
938 hadn't been noticed. Values of message_size_limit (both the global option
939 and the transport option) were treated as octal if they started with 0.
940 The documentation was vague. These values are now always treated as
941 decimal, and I will make that clear in the documentation.
942
943
93cfa765
TK
944Exim version 4.65
945-----------------
946
947TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
948 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
949 versions. (#438)
950
d6066548
MH
951MH/01 Don't check that the operands of numeric comparison operators are
952 integers when their expansion is in "skipping" mode (fixes bug
953 introduced by 4.64-PH/07).
954
4362ff0d
PH
955PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
956 child addresses, Exim now panics and dies. Previously, because the count
957 is held in a short int, deliveries were likely to be lost. As such a
958 large number of recipients for a single message is ridiculous
959 (performance will be very, very poor), I have chosen to impose a limit
960 rather than extend the field.
961
93cfa765 962
944e9e9c
TF
963Exim version 4.64
964-----------------
aa41d2de 965
21d74bd9
TK
966TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
967 leftover -K file (the existence of which was triggered by #402).
968 While we were at it, introduced process PID as part of the -K
969 filename. This should rule out race conditions when creating
970 these files.
971
972TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
973 processing considerably. Previous code took too long for large mails,
974 triggering a timeout which in turn triggers #401.
975
976TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
977 in the DK code in transports.c. sendfile() is not really portable,
978 hence the _LINUX specificness.
944e9e9c
TF
979
980TF/01 In the add_headers option to the mail command in an Exim filter,
981 there was a bug that Exim would claim a syntax error in any
982 header after the first one which had an odd number of characters
983 in the field name.
984
2b1c6e3a
PH
985PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
986 callout verification, Exim cached a "reject" for the entire domain. This
987 is correct for most verifications, but it is not correct for a recipient
988 verification with use_sender or use_postmaster set, because in that case
989 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
990 case of MAIL FROM:<> rejection from other early rejections (e.g.
991 rejection of HELO). When verifying a recipient using a non-null MAIL
992 address, the cache is ignored if it shows MAIL FROM:<> rejection.
993 Whatever the result of the callout, the value of the domain cache is
994 left unchanged (for any other kind of callout, getting as far as trying
995 RCPT means that the domain itself is ok).
996
1f872c80
PH
997PH/02 Tidied a number of unused variable and signed/unsigned warnings that
998 gcc 4.1.1 threw up.
999
1000PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1001 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1002 session, the daemon ignores ECONNECT errors and logs others; it now
1003 ignores EPIPE as well.
1004
d203e649
PH
1005PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1006 (quoted-printable decoding).
1007
cc2ed8f7 1008PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 1009 later the small subsequent patch to fix an introduced bug.
f951fd57 1010
ddfcd446
PH
1011PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1012
d45b1de8
PH
1013PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1014
1015PH/08 An error is now given if message_size_limit is specified negative.
1016
38a0a95f 1017PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 1018 to be given (somewhat) arbitrary names.
38a0a95f 1019
a2405d83
JJ
1020JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1021 in 4.64-PH/09.
1022
1023JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1024 miscellaneous code fixes
1025
6ea85e9a
PH
1026PH/10 Added the log_reject_target ACL modifier to specify where to log
1027 rejections.
1028
26da7e20
PH
1029PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1030 hostname. This is wrong, because it relates to the incoming message (and
1031 probably the interface on which it is arriving) and not to the outgoing
1032 callout (which could be using a different interface). This has been
1033 changed to use the value of the helo_data option from the smtp transport
1034 instead - this is what is used when a message is actually being sent. If
1035 there is no remote transport (possible with a router that sets up host
1036 addresses), $smtp_active_hostname is used.
6ea85e9a 1037
14aa5a05 1038PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 1039 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
1040 (a) The code assumed that strncpy() returns a negative number on buffer
1041 overflow, which isn't the case. Replaced with Exim's string_format()
1042 function.
1043 (b) There were several signed/unsigned issues. I just did the minimum
1044 hacking in of casts. There is scope for a larger refactoring.
1045 (c) The code used strcasecmp() which is not a standard C function.
1046 Replaced with Exim's strcmpic() function.
1047 (d) The code set only $1; it now sets $auth1 as well.
1048 (e) A simple test gave the error "authentication client didn't specify
1049 service in request". It would seem that Dovecot has changed its
1050 interface. Fortunately there's a specification; I followed it and
1051 changed what the client sends and it appears to be working now.
1052
ff75a1f7
PH
1053PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1054 decoding.
1055
e6f6568e
PH
1056PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1057 address A is aliased to B and C, where B exists and C does not. Without
1058 -v the output is "A verified" because verification stops after a
1059 successful redirection if more than one address is generated. However,
1060 with -v the child addresses are also verified. Exim was outputting "A
1061 failed to verify" and then showing the successful verification for C,
1062 with its parentage. It now outputs "B failed to verify", showing B's
1063 parentage before showing the successful verification of C.
1064
d6f6e0dc
PH
1065PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1066 look up a TXT record in a specific list after matching in a combined
1067 list.
1068
322050c2
PH
1069PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1070 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1071 they consult the DNS. I had assumed they would set it the way they
1072 wanted; and indeed my experiments on Linux seem to show that in some
1073 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1074 To be on the safe side, however, I have now made the interface to
1075 host_find_byname() similar to host_find_bydns(), with an argument
1076 containing the DNS resolver options. The host_find_byname() function now
1077 sets these options at its start, just as host_find_bydns() does. The smtp
1078 transport options dns_qualify_single and dns_search_parents are passed to
1079 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1080 of host_find_byname() use the default settings of RES_DEFNAMES
1081 (qualify_single) but not RES_DNSRCH (search_parents).
1082
08955dd3
PH
1083PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1084 spool_read_header() do less string testing, by means of a preliminary
1085 switch on the second character of optional "-foo" lines. (This is
1086 overdue, caused by the large number of possibilities that now exist.
1087 Originally there were few.) While I was there, I also converted the
1088 str(n)cmp tests so they don't re-test the leading "-" and the first
1089 character, in the hope this might squeeze out yet more improvement.
1090
1eccaa59
PH
1091PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1092 flag allowing group syntax was set by the header_syntax check but not
1093 turned off, possible causing trouble later; (2) The flag was not being
1094 set at all for the header_verify test, causing "group"-style headers to
1095 be rejected. I have now set it in this case, and also caused header_
1096 verify to ignore an empty address taken from a group. While doing this, I
1097 came across some other cases where the code for allowing group syntax
1098 while scanning a header line wasn't quite right (mostly, not resetting
1099 the flag correctly in the right place). These bugs could have caused
1100 trouble for malformed header lines. I hope it is now all correct.
1101
602e59e5
PH
1102PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1103 with the "reply" argument non-NULL. The code, however (which originally
1104 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1105 but it didn't always do it. This confused somebody who was copying the
1106 code for some other use. I have removed all the tests.
1107
411ef850
PH
1108PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1109 feature that was used to support insecure browsers during the U.S. crypto
1110 embargo. It requires special client support, and Exim is probably the
1111 only MTA that supported it -- and would never use it because real RSA is
1112 always available. This code has been removed, because it had the bad
1113 effect of slowing Exim down by computing (never used) parameters for the
1114 RSA_EXPORT functionality.
1115
7befa435
PH
1116PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1117 authenticator to fail if there's a tab character in the incoming data
1118 (there should never be unless someone is messing about, as it's supposed
1119 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1120 if the connection is using TLS or if the remote IP is the same as the
1121 local IP, and the "valid-client-cert option" if a client certificate has
1122 been verified.
1123
48da4259 1124PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1125 authenticators. This can be used for authorization after authentication
1126 succeeds. (In the case of plaintext, it servers for both authentication
1127 and authorization.)
1128
48da4259
PH
1129PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1130 if any retry times were supplied.
1131
d1d5595c
PH
1132PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1133 connection, where there is no client IP address to check. In this
1134 situation, the verify now always succeeds.
1135
0ef732d9
PH
1136PH/25 Applied John Jetmore's -Mset patch.
1137
328895cc
PH
1138PH/26 Added -bem to be like -Mset, but loading a message from a file.
1139
fd700877
PH
1140PH/27 In a string expansion for a processed (not raw) header when multiple
1141 headers of the same name were present, leading whitespace was being
1142 removed from all of them, but trailing whitespace was being removed only
1143 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1144 before concatenation. Completely empty headers in a concatenation (as
1145 before) are ignored.
fd700877 1146
8dce1a6f
PH
1147PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1148 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1149
17af4a17
PH
1150PH/29 [Removed. This was a change that I later backed out, and forgot to
1151 correct the ChangeLog entry (that I had efficiently created) before
1152 committing the later change.]
f6c332bd
PH
1153
1154PH/30 Exim was sometimes attempting to deliver messages that had suffered
1155 address errors (4xx response to RCPT) over the same connection as other
1156 messages routed to the same hosts. Such deliveries are always "forced",
1157 so retry times are not inspected. This resulted in far too many retries
1158 for the affected addresses. The effect occurred only when there were more
1159 hosts than the hosts_max_try setting in the smtp transport when it had
1160 the 4xx errors. Those hosts that it had tried were not added to the list
1161 of hosts for which the message was waiting, so if all were tried, there
1162 was no problem. Two fixes have been applied:
1163
1164 (i) If there are any address or message errors in an SMTP delivery, none
1165 of the hosts (tried or untried) are now added to the list of hosts
1166 for which the message is waiting, so the message should not be a
1167 candidate for sending over the same connection that was used for a
1168 successful delivery of some other message. This seems entirely
1169 reasonable: after all the message is NOT "waiting for some host".
1170 This is so "obvious" that I'm not sure why it wasn't done
1171 previously. Hope I haven't missed anything, but it can't do any
1172 harm, as the worst effect is to miss an optimization.
1173
1174 (ii) If, despite (i), such a delivery is accidentally attempted, the
1175 routing retry time is respected, so at least it doesn't keep
1176 hammering the server.
1177
c1114884
PH
1178PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1179 in ${readsocket because some servers need this prod.
1180
7a0743eb
PH
1181PH/32 Added some extra debug output when updating a wait-xxx database.
1182
0d85fa3f
PH
1183PH/33 The hint "could be header name not terminated by colon", which has been
1184 given for certain expansion errors for a long time, was not being given
1185 for the ${if def:h_colon_omitted{... case.
1186
1bf43b78
PH
1187PH/34 The spec says: "With one important exception, whenever a domain list is
1188 being scanned, $domain contains the subject domain." There was at least
1189 one case where this was not true.
1190
520de300
PH
1191PH/35 The error "getsockname() failed: connection reset by peer" was being
1192 written to the panic log as well as the main log, but it isn't really
1193 panic-worthy as it just means the connection died rather early on. I have
1194 removed the panic log writing for the ECONNRESET error when getsockname()
1195 fails.
1196
48c7f9e2
PH
1197PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1198 runs only) independently of the message's sender address. This meant
1199 that, if the 4xx error was in fact related to the sender, a different
1200 message to the same recipient with a different sender could confuse
1201 things. In particualar, this can happen when sending to a greylisting
1202 server, but other circumstances could also provoke similar problems.
1203 I have changed the default so that the retry time for these errors is now
1204 based a combination of the sender and recipient addresses. This change
1205 can be overridden by setting address_retry_include_sender=false in the
1206 smtp transport.
1207
99ea1c86
PH
1208PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1209 remote server are returned as part of bounce messages. This was not
1210 happening for LMTP over a pipe (the lmtp transport), but now it is the
1211 same for both kinds of LMTP.
1212
a2042e78
PH
1213PH/38 Despite being documented as not happening, Exim was rewriting addresses
1214 in header lines that were in fact CNAMEs. This is no longer the case.
1215
4fbcfc2e
PH
1216PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1217 and queue runs started by the daemon processed all messages. This has
1218 been fixed so that -R and -S can now usefully be given with -q<time>.
1219
aa41d2de
PH
1220PH/40 Import PCRE release 6.7 (fixes some bugs).
1221
af561417
PH
1222PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1223
3cc66b45
PH
1224PH/42 Give an error if -q is specified more than once.
1225
194cc0e4
PH
1226PH/43 Renamed the variables $interface_address and $interface_port as
1227 $received_ip_address and $received_port, to make it clear that these
1228 values apply to message reception, and not to the outgoing interface when
1229 a message is delivered. (The old names remain recognized, of course.)
1230
a401ddaa
PH
1231PH/44 There was no timeout on the connect() call when using a Unix domain
1232 socket in the ${readsocket expansion. There now is.
1233
4e88a19f
PH
1234PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1235 be meaningful with "accept".
1236
d7d7b289
SC
1237SC/01 Eximstats V1.43
1238 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1239
1240SC/02 Eximstats V1.44
1241 Use a glob alias rather than an array ref in the generated
1242 parser. This improves both readability and performance.
1243
1244SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1245 Collect SpamAssassin and rejection statistics.
1246 Don't display local sender or destination tables unless
1247 there is data to show.
1248 Added average volumes into the top table text output.
1249
1250SC/04 Eximstats V1.46
1251 Collect data on the number of addresses (recipients)
1252 as well as the number of messages.
1253
1254SC/05 Eximstats V1.47
1255 Added 'Message too big' to the list of mail rejection
1256 reasons (thanks to Marco Gaiarin).
1257
1258SC/06 Eximstats V1.48
1259 Mainlog lines which have GMT offsets and are too short to
1260 have a flag are now skipped.
1261
1262SC/07 Eximstats V1.49 (Alain Williams)
1263 Added the -emptyok flag.
1264
1265SC/08 Eximstats V1.50
1266 Fixes for obtaining the IP address from reject messages.
1267
0ea2a468
JJ
1268JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1269 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1270 whitesspace changes from 4.64-PH/27
1271
1272JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1273 match 4.64-PH/13
1274
1275JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1276 are found, allow negative numbers in numeric criteria)
1277
1278JJ/06 exipick.20061117.2, added new $message_body_missing variable
1279
1280JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1281 to match changes made in 4.64-PH/43
1282
8a10f5a4
PH
1283PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1284
30e18802
PH
1285PH/47 Put in an explicit test for a DNS lookup of an address record where the
1286 "domain" is actually an IP address, and force a failure. This locks out
1287 those revolvers/nameservers that support "A-for-A" lookups, in
1288 contravention of the specifications.
1289
55728a4f
PH
1290PH/48 When a host name was looked up from an IP address, and the subsequent
1291 forward lookup of the name timed out, the host name was left in
1292 $sender_host_name, contrary to the specification.
d7d7b289 1293
d7837193
PH
1294PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1295 restricted to single-key lookups, Exim was not diagnosing an error if
1296 * or *@ was used with a query-style lookup.
1297
87054a31
PH
1298PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1299
ea2c01d2
MH
1300MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1301 long ago, but noone interested enough thought of it. Let's just say that
1302 the "1.1" means that there are some new functions that weren't there at
1303 some point in the past.
1304
e4fa6968
PH
1305PH/51 Error processing for expansion failure of helo_data from an smtp
1306 transport during callout processing was broken.
1307
56f5d9bd
PH
1308PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1309 tested/used via the -bh/-bhc/-bs options.
1310
922e1c28
PH
1311PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1312 bug, fixed in subsequent PCRE releases).
1313
21eb6e72
PH
1314PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1315 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1316
a0540757
PH
1317PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1318
944e9e9c 1319
478be7b0
SC
1320Exim version 4.63
1321-----------------
1322
1323SC/01 Use a glob alias rather than an array ref in eximstats generated
1324 parser. This improves both readability and performance.
1325
1326SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1327 Don't display local sender or destination tables in eximstats unless
1328 there is data to show.
1329 Added average volumes into the eximstats top table text output.
1330
1331SC/03 Collect data on the number of addresses (recipients) as well
1332 as the number of messages in eximstats.
1333
2b965a65
TF
1334TF/01 Correct an error in the documentation for the redirect router. Exim
1335 does (usually) call initgroups() when daemonizing.
478be7b0 1336
45b91596
PH
1337TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1338 with consistent privilege compared to when running as a daemon.
478be7b0 1339
c59f5781
TF
1340TF/03 Note in the spec that $authenticated_id is not set for local
1341 submissions from trusted users.
1342
90fc3069
TF
1343TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1344 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1345
6083aca0
TF
1346TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1347 by adding some example configuration directives to the default
1348 configuration file. A little bit of work is required to uncomment the
1349 directives and define how usernames and passwords are checked, but
1350 there is now a framework to start from.
1351
765b530f
PH
1352PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1353 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1354 without this. I don't know how relevant this is to other LDAP libraries.
1355
4e167a8c
PH
1356PH/02 Add the verb name to the "unknown ACL verb" error.
1357
4608d683
PH
1358PH/03 Magnus Holmgren's patch for filter_prepend_home.
1359
b8dc3e4a
PH
1360PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1361
5418e93b
PH
1362PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1363 directory not expanded when it should be if an expanded home directory
1364 was set for the address (which is overridden by the transport).
1365
b4a9bda2
PH
1366PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1367 libradius.
1368
45b91596
PH
1369PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1370 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1371 because it is too late at that time, and has no effect.
1372
5547e2c5
PH
1373PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1374 security issue with \' (bugzilla #107). I could not use the
1375 PQescapeStringConn() function, because it needs a PGconn value as one of
1376 its arguments.
1377
dbcef0ea
PH
1378PH/08 When testing addresses using -bt, indicate those final addresses that
1379 are duplicates that would not cause an additional delivery. At least one
1380 person was confused, thinking that -bt output corresponded to deliveries.
1381 (Suppressing duplicates isn't a good idea as you lose the information
1382 about possibly different redirections that led to the duplicates.)
1383
25257489
PH
1384PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1385 systems where poll() doesn't work, in particular OS X.
1386
c816d124
PH
1387PH/10 Added more information to debugging output for retry time not reached.
1388
a9ccd69a
PH
1389PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1390 operations in malware.c.
1391
75fa1910
PH
1392PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1393 signatures.
1394
a7d7aa58
PH
1395PH/13 If write_rejectlog was set false when logging was sent to syslog with
1396 syslog_duplication set false, log lines that would normally be written
1397 both the the main log and to the reject log were not written to syslog at
1398 all.
1399
42119b09
PH
1400PH/14 In the default configuration, change the use of "message" in ACL warn
1401 statements to "add_header".
1402
41609df5
PH
1403PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1404 not followed by a command (e.g. "seen endif").
1405
a5bd321b
PH
1406PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1407 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1408 latter.
1409
e85a7ad5 1410PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1411 so that it is now:
1412
e85a7ad5
PH
1413 ${if or { \
1414 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1415 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1416 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1417 }{no}{yes}}
1418
e85a7ad5
PH
1419 The Auto-Submitted: and various List- headers are standardised, whereas I
1420 don't think Precedence: ever was.
5dff5817 1421
d8fe1c03
PH
1422PH/18 Refactored debugging code in route_finduser() to show more information,
1423 in particular, the error code if getpwnam() issues one.
1424
16282d2b
PH
1425PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1426 This is apparently needed in addition to the PH/07 change above to avoid
1427 any possible encoding problems.
1428
35d40a98
PH
1429PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1430 but not after initializing Perl.
1431
034d99ab
PH
1432PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1433 output them only if debugging. By default they are written stderr,
1434 apparently, which is not desirable.
1435
6ec97b1b
PH
1436PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1437 queries.
1438
e22ca4ac
JJ
1439JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1440 --not options
1441
1442JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1443
33d73e3b
PH
1444PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1445 authenticated or an ident call has been made. Suppress the default
1446 values for $authenticated_id and $authenticated_sender (but permit -oMai
1447 and -oMas) when testing with -bh.
1448
9ecb03f3
PH
1449PH/24 Re-jigged the order of the tests in the default configuration so that the
1450 tests for valid domains and recipients precede the DNS black list and CSA
1451 tests, on the grounds that those ones are more expensive.
1452
084efe8d
PH
1453PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1454 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1455 This bug exists in every version of Exim that I still have, right back to
1456 0.12.
1457
366fc9f0
PH
1458PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1459 However, an attempt to turn on case-sensitivity in a regex key by
1460 including (?-i) didn't work because the subject string was already
1461 lowercased, and the effects were non-intuitive. It turns out that a
1462 one-line patch can be used to allow (?-i) to work as expected.
1463
c59f5781 1464
c887c79e
TF
1465Exim version 4.62
1466-----------------
1467
1468TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1469 other effects) broke the use of negated acl sub-conditions.
1470
1cce3af8
PH
1471PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1472 patch).
1473
afb3eaaf
PH
1474PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1475 "Deny" causes Exim to reject the incoming connection with a 554 error.
1476 Unfortunately, if there is a major crisis, such as a disk failure,
1477 tcp-wrappers gives "deny", whereas what one would like would be some
1478 kind of temporary error. A kludge has been added to help with this.
1479 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1480 554 error is used if errno is still zero or contains ENOENT (which occurs
1481 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1482 451 error is used.
1483
e173618b
PH
1484PH/03 Add -lutil to the default FreeBSD LIBS setting.
1485
dd16e114
PH
1486PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1487 errors. Otherwise a message that provokes a temporary error (when other
1488 messages do not) can cause a whole host to time out.
1489
f7fd3850
PH
1490PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1491 addresses were routed directly to files or pipes from a redirect router.
1492 File deliveries just didn't batch; pipe deliveries might have suffered
1493 odd errors.
1494
d87df92c
PH
1495PH/06 A failure to get a lock for a hints database would erroneously always say
1496 "Failed to get write lock", even when it was really a read lock.
1497
7e9f683d
PH
1498PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1499 of 0600. This has been changed to use the value of the lockfile_mode
1500 option (which defaults to 0600).
1501
bfad5236
PH
1502PH/08 Applied small patch from the Sieve maintainer.
1503
01c490df
PH
1504PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1505 folder from quota calculations, a direct delivery into this folder messed
1506 up the contents of the maildirsize file. This was because the regex was
1507 used only to exclude .Trash (or whatever) when the size of the mailbox
1508 was calculated. There was no check that a delivery was happening into an
1509 excluded directory. This bug has been fixed by ignoring all quota
1510 processing for deliveries into excluded directories.
1511
d6629cdc
PH
1512PH/10 Added the maildirfolder_create_regex option to appendfile.
1513
1cce3af8 1514
214e2000
PH
1515Exim version 4.61
1516-----------------
1517
1518PH/01 The code for finding all the local interface addresses on a FreeBSD
1519 system running IPv6 was broken. This may well have applied to all BSD
1520 systems, as well as to others that have similar system calls. The broken
1521 code found IPv4 interfaces correctly, but gave incorrect values for the
1522 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1523 that it would not match correctly against @[] and not recognize the IPv6
1524 addresses as local.
1525
f9daeae0
PH
1526PH/02 The ipliteral router was not recognizing addresses of the form user@
1527 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1528
7e66e54d
PH
1529PH/03 Added disable_ipv6.
1530
c8ea1597
PH
1531PH/04 Changed $reply_address to use the raw form of the headers instead of the
1532 decoded form, because it is most often used to construct To: headers
1533 lines in autoreplies, and the decoded form may well be syntactically
1534 invalid. However, $reply_address has leading white space removed, and all
1535 newlines turned into spaces so that the autoreply transport does not
1536 grumble.
1537
911f6fde
PH
1538PH/05 If group was specified without a user on a router, and no group or user
1539 was specified on a transport, the group from the router was ignored.
1540
47ca6d6c
PH
1541PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1542 for visible compile-time settings that can be used to change these
1543 numbers, for those that want even more. Backwards compatibility with old
1544 spool files has been maintained. However, going back to a previous Exim
1545 release will lost any variables that are in spool files.
1546
ed0e9820
PH
1547PH/07 Two small changes when running in the test harness: increase delay when
1548 passing a TCP/IP connection to a new process, in case the original
1549 process has to generate a bounce, and remove special handling of
1550 127.0.0.2 (sic), which is no longer necessary.
1551
eff37e47
PH
1552PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1553 be the same on different OS.
1554
1921d2ea
PH
1555PH/09 Moved a debug statement in filter processing to avoid a race problem when
1556 testing.
1557
b3f69ca8
JJ
1558JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1559 whether --show-vars was specified or not
1560
1561JJ/02 exipick: Added support for new ACL variable spool format introduced
1562 in 4.61-PH/06
1563
424a1c63
PH
1564PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1565 syntactically invalid From: or Reply-to: line, and a filter used this to
1566 generate an autoreply, and therefore failed to obtain an address for the
1567 autoreply, Exim could try to deliver to a non-existent relative file
1568 name, causing unrelated and misleading errors. What now happens is that
1569 it logs this as a hard delivery error, but does not attempt to create a
1570 bounce message.
1571
7a100415
PH
1572PH/11 The exinext utility has a -C option for testing purposes, but although
1573 the given file was scanned by exinext itself; it wasn't being passed on
1574 when Exim was called.
1575
19b9dc85
PH
1576PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1577 an end-of-file indication when reading a command response.
1578
309bd837
PH
1579PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1580 compiled. In many other places in Exim, IPv6 addresses are always
1581 recognized, so I have changed this. It also means that IPv4 domain
1582 literals of the form [IPV4:n.n.n.n] are now always recognized.
1583
59e82a2a
PH
1584PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1585 used if the router is not running as root, for example, when verifying at
1586 ACL time, or when using -bh. The debugging output from this situation was
1587 non-existent - all you got was a failure to exec. I have made two
1588 changes:
1589
1590 (a) Failures to set uid/gid, the current directory, or a process leader
1591 in a subprocess such as that created by queryprogram now generate
1592 suitable debugging ouput when -d is set.
1593
1594 (b) The queryprogram router detects when it is not running as root,
1595 outputs suitable debugging information if -d is set, and then runs
1596 the subprocess without attempting to change uid/gid.
1597
9edc04ce
PH
1598PH/15 Minor change to Makefile for building test_host (undocumented testing
1599 feature).
1600
1349e1e5
PH
1601PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1602 additional section of a DNS packet that returns MX or SRV records.
1603 Instead, it always explicitly searches for A/AAAA records. This avoids
1604 major problems that occur when a DNS server includes only records of one
1605 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1606 fixed another bug: if SRV records were looked up and the corresponding
1607 address records were *not* found in the additional section, the port
1608 values from the SRV records were lost.
1609
ea49d0e1
PH
1610PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1611 using the correct key (the original address) when searching the retry
1612 rules in order to find which one to use for generating the retry hint.
1613
064a94c9
PH
1614PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1615 adding the default one. Similarly, if it contains a Reply-To: header, the
1616 errors_reply_to option, if set, is not used.
1617
727071f8
PH
1618PH/19 When calculating a retry time, Exim used to measure the "time since
1619 failure" by looking at the "first failed" field in the retry record. Now
1620 it does not use this if it is later than than the arrival time of the
1621 message. Instead it uses the arrival time. This makes for better
1622 behaviour in cases where some deliveries succeed, thus re-setting the
1623 "first failed" field. An example is a quota failure for a huge message
1624 when small messages continue to be delivered. Without this change, the
1625 "time since failure" will always be short, possible causing more frequent
1626 delivery attempts for the huge message than are intended.
dd16e114 1627 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1628
f78eb7c6
PH
1629PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1630 $1, $2, $3) because the numerical variables can be reset during some
1631 expansion items (e.g. "match"), thereby losing the authentication data.
1632
21c28500
PH
1633PH/21 Make -bV show the size of off_t variables so that the test suite can
1634 decide whether to run tests for quotas > 2G.
1635
1636PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1637 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1638 filecount value is greater than 2G or if a quota value is greater than 2G
1639 on a system where the size of off_t is not greater than 4, a panic error
1640 is given.
1641
1688f43b
PH
1642PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1643 never match. The debug and -bh output now contains an explicit error
1644 message indicating a malformed IPv4 address or mask.
1645
1646PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1647 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1648 PH/23 above applies.
1649
9675b384
PH
1650PH/25 Do not write to syslog when running in the test harness. The only
1651 occasion when this arises is a failure to open the main or panic logs
1652 (for which there is an explicit test).
1653
6a3f1455
PH
1654PH/26 Added the /no_tell option to "control=freeze".
1655
dac79d3e
PH
1656PH/27 If a host name lookup failed very early in a connection, for example, if
1657 the IP address matched host_lookup and the reverse lookup yielded a name
1658 that did not have a forward lookup, an error message of the form "no IP
1659 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1660 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1661
5977a0b3
PH
1662PH/28 An enabling patch from MH: add new function child_open_exim2() which
1663 allows the sender and the authenticated sender to be set when
1664 submitting a message from within Exim. Since child_open_exim() is
1665 documented for local_scan(), the new function should be too.
1666
c91535f3
PH
1667PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1668 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1669 results in an empty string is now treated as unset.
1670
0d46a8c8
PH
1671PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1672
278c6e6c
PH
1673PH/31 Added sender_verify_fail logging option.
1674
2cbb4081
PH
1675PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1676 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1677 tidied the source and removed it altogether.
1678
3eef829e
PH
1679PH/33 When a queue run was abandoned because the load average was too high, a
1680 log line was always written; now it is written only if the queue_run log
1681 selector is set. In addition, the log line for abandonment now contains
1682 information about the queue run such as the pid. This is always present
1683 in "start" and "stop" lines but was omitted from the "abandon" line.
1684
1ab95fa6
PH
1685PH/34 Omit spaces between a header name and the colon in the error message that
1686 is given when verify = headers_syntax fails (if there are lots of them,
1687 the message gets confusing).
1688
230205fc
PH
1689PH/35 Change the default for dns_check_names_pattern to allow slashes within
1690 names, as there are now some PTR records that contain slashes. This check
1691 is only to protect against broken name servers that fall over on strange
1692 characters, so the fact that it applies to all lookups doesn't matter.
1693
75e0e026
PH
1694PH/36 Now that the new test suite is complete, we can remove some of the
1695 special code in Exim that was needed for the old test suite. For example,
1696 sorting DNS records because real resolvers return them in an arbitrary
1697 order. The new test suite's fake resolver always returns records in the
1698 same order.
1699
1700PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1701 bounces) except when queue_only is set, to avoid logging races between
1702 the different processes.
1703
145396a6
PH
1704PH/38 Panic-die if .include specifies a non-absolute path.
1705
3cd34f13
PH
1706PH/39 A tweak to the "H" retry rule from its user.
1707
11121d3d
JJ
1708JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1709 a label. They prevented compilation on older perls.
1710
1711JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1712 a warning to be raised on newish perls.
1713
1714JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1715 on queue. Changes to match documented behaviour of showing count of
1716 messages matching specified criteria.
1717
8def5aaf
PH
1718PH/40 Changed the default ident timeout from 30s to 5s.
1719
929ba01c
PH
1720PH/41 Added support for the use of login_cap features, on those BSD systems
1721 that have them, for controlling the resources used by pipe deliveries.
1722
2632889e
PH
1723PH/42 The content-scanning code uses fopen() to create files in which to put
1724 message data. Previously it was not paying any attention to the mode of
1725 the files. Exim runs with umask(0) because the rest of the code creates
1726 files with open(), and sets the required mode explicitly. Thus, these
1727 files were ending up world-writeable. This was not a big issue, because,
1728 being within the spool directory, they were not world-accessible. I have
1729 created a function called modefopen, which takes an additional mode
1730 argument. It sets umask(777), creates the file, chmods it to the required
1731 mode, then resets the umask. All the relevant calls to fopen() in the
1732 content scanning code have been changed to use this function.
1733
944a9c55
PH
1734PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1735 to 24 hours. This avoids potential overflow problems when processing G
1736 and H retry rules. I suspect nobody ever tinkers with this value.
1737
4a23603b
PH
1738PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1739
4730f942
PH
1740PH/45 When the plaintext authenticator is running as a client, the server's
1741 challenges are checked to ensure they are valid base64 strings. By
1742 default, the authentication attempt is cancelled if an invalid string is
1743 received. Setting client_ignore_invalid_base64 true ignores these errors.
1744 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1745 they are received. Thus, the responses can be made to depend on the
1746 challenges. If an invalid string is ignored, an empty string is placed in
1747 the variable.
1748
30dba1e6
PH
1749PH/46 Messages that are created by the autoreply transport now contains a
1750 References: header, in accordance with RFCs 2822 and 3834.
1751
382afc6b
PH
1752PH/47 Added authenticated_sender_force to the smtp transport.
1753
a86229cf
PH
1754PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1755
50c99ba6
PH
1756PH/49 Installed latest patch from the Sieve maintainer.
1757
d35e429d
PH
1758PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1759 was also set, the appendfile transport was unnecessarily scanning a
1760 directory of message files (e.g. for maildir delivery) to find the count
1761 of files (along with the size), even though it did not need this
1762 information. It now does the scan only if it needs to find either the
1763 size of the count of files.
1764
f90d018c
PH
1765PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1766
75def545
PH
1767PH/52 Two bugs concerned with error handling when the smtp transport is
1768 used in LMTP mode:
1769
1770 (i) Exim was not creating retry information for temporary errors given
1771 for individual recipients after the DATA command when the smtp transport
1772 was used in LMTP mode. This meant that they could be retried too
1773 frequently, and not timed out correctly.
1774
1775 (ii) Exim was setting the flag that allows error details to be returned
1776 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1777 recipients that were returned after the DATA command.
1778
1779PH/53 This is related to PH/52, but is more general: for any failing address,
1780 when detailed error information was permitted to be returned to the
1781 sender, but the error was temporary, then after the final timeout, only
1782 "retry timeout exceeded" was returned. Now it returns the full error as
1783 well as "retry timeout exceeded".
1784
c46782ef
PH
1785PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1786 do this, and (what is worse) MTAs that accept it.
1787
71fafd95
PH
1788PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1789 will now be deprecated.
1790
2c5db4fd
PH
1791PH/56 New os.c-cygwin from the Cygwin maintainer.
1792
9cf6b11a
JJ
1793JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1794 formats (previously only available in exim formats via -bpr, -bpru,
1795 and -bpra. Now also available in native and exiqgrep formats)
1796
1797JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1798 with very large, slow to parse queues
1799
1800JJ/08 exipick: added ! as generic prefix to negate any criteria format
1801
1802JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1803
898d150f
PH
1804PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1805 responses to authentication challenges, though it was showing the
1806 challenges; (ii) I've removed the CR characters from the debug output for
1807 SMTP output lines.
1808
46218253
PH
1809PH/58 Allow for the insertion of a newline as well as a space when a string
1810 is turned into more than one encoded-word during RFC 2047 encoding. The
1811 Sieve code now uses this.
1812
e97957bc
PH
1813PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1814 data_4xx, lost_connection, tls_required.
1815
81e509d7
PH
1816PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1817 message was being sent as an SMTP response.
1818
3d240ff7
PH
1819PH/61 Add -l and -k options to exicyclog.
1820
b37c4101
PH
1821PH/62 When verifying, if an address was redirected to one new address, so that
1822 verification continued, and the new address failed or deferred after
1823 having set something in $address_data, the value of $address_data was not
1824 passed back to the ACL. This was different to the case when no
1825 redirection occurred. The value is now passed back in both cases.
1826
79378e0f
PH
1827PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1828 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1829 use login_cap.h, so on its own it isn't the distinguishing feature. The
1830 new name refers directly to the setclassresources() function.
1831
e49c7bb4
PH
1832PH/65 Added configuration files for NetBSD3.
1833
d114ec46
PH
1834PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1835
f3d7df6c
PH
1836PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1837 is preferred over IPv4.
1838
715ab376
PH
1839PH/68 The bounce_return_message and bounce_return_body options were not being
1840 honoured for bounces generated during the reception of non-SMTP messages.
1841 In particular, this applied to messages rejected by the ACL. This bug has
1842 been fixed. However, if bounce_return_message is true and bounce_return_
1843 body is false, the headers that are returned for a non-SMTP message
1844 include only those that have been read before the error was detected.
1845 (In the case of an ACL rejection, they have all been read.)
1846
6b31b150
PH
1847PH/69 The HTML version of the specification is now built in a directory called
1848 spec_html instead of spec.html, because the latter looks like a path with
1849 a MIME-type, and this confuses some software.
1850
1851PH/70 Catch two compiler warnings in sieve.c.
1852
d515a917
PH
1853PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1854 function verify_get_ident() calls ip_connect() to connect a socket, but
1855 if the "connect()" function timed out, ip_connect() used to close the
1856 socket. However, verify_get_ident() also closes the socket later, and in
1857 between Exim writes to the log, which may get opened at this point. When
1858 the socket was closed in ip_connect(), the log could get the same file
1859 descriptor number as the socket. This naturally causes chaos. The fix is
1860 not to close the socket in ip_connect(); the socket should be closed by
1861 the function that creates it. There was only one place in the code where
1862 this was missing, in the iplookup router, which I don't think anybody now
1863 uses, but I've fixed it anyway.
1864
9b8fadde
PH
1865PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1866 well as to direct DNS lookups. Otherwise the handling of names in host
1867 lists is inconsistent and therefore confusing.
1868
214e2000 1869
5de37277
PH
1870Exim version 4.60
1871-----------------
1872
cc38ddbf
PH
1873PH/01 Two changes to the default runtime configuration:
1874
1875 (1) Move the checks for relay_from_hosts and authenticated clients from
1876 after to before the (commented out) DNS black list checks.
1877
1878 (2) Add control=submission to the relay_from_hosts and authenticated
1879 clients checks, on the grounds that messages accepted by these
1880 statements are most likely to be submissions.
5de37277 1881
72fdd6ae
PH
1882PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1883
1884 (1) Generate an error if the third argument for the ${prvs expansion is
1885 not a single digit.
1886
1887 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1888 string.
1889
1890 (3) Reset the variables that are obtained from the first argument of
1891 ${prvscheck and used in the second argument before leaving the code,
1892 because their memory is reclaimed, so using them afterwards may do
1893 silly things.
1894
1895 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1896 one (it's much easier than Tom thought :-).
1897
1898 (5) Because of (4), we can now allow for the use of $prvscheck_result
1899 inside the third argument.
cb9328de 1900
cb741023
PH
1901PH/03 For some reason, the default setting of PATH when running a command from
1902 a pipe transport was just "/usr/bin". I have changed it to
1903 "/bin:/usr/bin".
1904
f174f16e
PH
1905PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1906 anything to be listed in the output from -bV.
b2f5a032 1907
c25242d7
PH
1908PH/05 When a filter generated an autoreply, the entire To: header line was
1909 quoted in the delivery log line, like this:
1910
1911 => >A.N.Other <ano@some.domain> <original@ddress> ...
1912
1913 This has been changed so that it extracts the operative address. There
1914 may be more than one such address. If so, they are comma-separated, like
1915 this:
1916
1917 => >ano@some.domain,ona@other.domain <original@ddress> ...
1918
82c19f95
PH
1919PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1920 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1921 not being looked up in the rDNS to get a host name, Exim was showing the
1922 IP address twice in Received: lines, even though the IP addresses were
1923 identical. For example:
1924
1925 Received: from [1.2.3.4] (helo=[1.2.3.4])
1926
1927 However, if the real host name was known, it was omitting the HELO data
1928 if it matched the actual IP address. This has been tidied up so that it
1929 doesn't show the same IP address twice.
1930
d7ffbc12
PH
1931PH/07 When both +timestamp and +memory debugging was on, the value given by
1932 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1933 called by the debug printing, thereby overwriting the timestamp buffer.
1934 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1935
9f526266
PH
1936PH/08 When the original message was included in an autoreply transport, it
1937 always said "this is a copy of the message, including all the headers",
1938 even if body_only or headers_only was set. It now gives an appropriate
1939 message.
1940
87fcc8b9
PH
1941PH/09 Applied a patch from the Sieve maintainer which:
1942
1943 o fixes some comments
1944 o adds the (disabled) notify extension core
1945 o adds some debug output for the result of if/elsif tests
1946 o points to the current vacation draft in the documentation
1947 and documents the missing references header update
1948
1949 and most important:
1950
1951 o fixes a bug in processing the envelope test (when testing
1952 multiple envelope elements, the last element determinted the
1953 result)
1954
456682f5
PH
1955PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1956 Electronic Mail") by including:
1957
1958 Auto-submitted: auto-generated
1959
1960 in the messages that it generates (bounce messages and others, such as
1961 warnings). In the case of bounce messages for non-SMTP mesages, there was
1962 also a typo: it was using "Auto_submitted" (underscore instead of
1963 hyphen). Since every message generated by Exim is necessarily in response
1964 to another message, thes have all been changed to:
1965
1966 Auto-Submitted: auto-replied
1967
1968 in accordance with these statements in the RFC:
1969
1970 The auto-replied keyword:
1971
1972 - SHOULD be used on messages sent in direct response to another
1973 message by an automatic process,
1974
1975 - MUST NOT be used on manually-generated messages,
1976
1977 - MAY be used on Delivery Status Notifications (DSNs) and Message
1978 Disposition Notifications (MDNs),
1979
1980 - MUST NOT be used on messages generated by automatic or periodic
1981 processes, except for messages which are automatic responses to
1982 other messages.
1983
3e46c1aa
PH
1984PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1985 to the default Received: header definition.
456682f5 1986
49826d12
PH
1987PH/12 Added log selector acl_warn_skipped (default on).
1988
eba0c039
PH
1989PH/13 After a successful wildlsearch lookup, discard the values of numeric
1990 variables because (a) they are in the wrong storage pool and (b) even if
1991 they were copied, it wouldn't work properly because of the caching.
1992
a0d6ba8a
PH
1993PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1994 checking when decoding. Apparently there are clients that generate
1995 overlong encoded strings. Why am I not surprised?
1996
f0917727
PH
1997PH/15 If the first argument of "${if match_address" was not empty, but did not
1998 contain an "@" character, Exim crashed. Now it writes a panic log message
1999 and treats the condition as false.
2000
096fee00
PH
2001PH/16 In autoreply, treat an empty string for "once" the same as unset.
2002
024bd3c2
PH
2003PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2004 extension "envelope-auth". The code is finished and in agreement with
2005 other implementations, but there is no documentation so far and in fact,
2006 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2007 not changing the active code.
2008
2009 Print executed "if" and "elsif" statements when debugging is used. This
2010 helps a great deal to understand what a filter does.
2011
2012 Document more things not specified clearly in RFC3028. I had all this
2013 sorted out, when out of a sudden new issues came to my mind. Oops."
2014
df199fec
PH
2015PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2016 (Bugzilla #53).
2017
d27f1df3
PH
2018PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2019 canonical form (as documented). However, after a host name lookup from
2020 the IP address, check_host() was doing a simple string comparison with
2021 addresses acquired from the DNS when checking that the found name did
2022 have the original IP as one of its addresses. Since any found IPv6
2023 addresses are likely to be in abbreviated form, the comparison could
2024 fail. Luckily, there already exists a function for doing the comparison
2025 by converting both addresses to binary, so now that is used instead of
2026 the text comparison.
2027
96776534
PH
2028PH/20 There was another similar case to PH/19, when a complete host name was
2029 given in a host list; looking up its IP address could give an abbreviated
2030 form, whereas the current host's name might or might not be abbreviated.
2031 The same fix has been applied.
2032
5de37277 2033
9a799bc0
PH
2034Exim version 4.54
2035-----------------
2036
2037PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2038 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2039 It now does.
2040
99a4b039
PH
2041PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2042 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2043
2044PH/03 Typo: missing ".o" in src/pcre/Makefile.
2045
4b233853
PH
2046PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2047 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2048 Also, for "Auto-Submitted", treat anything other than "no" as
2049 non-personal, in accordance with RFC 3834. (Previously it treated
2050 anything starting "auto-" as non-personal.)
2051
8857ccfd
PH
2052TF/01 The control=submission/name=... option had a problem with syntax
2053 errors if the name included a slash character. The /name= option
2054 now slurps the rest of the string, so it can include any characters
2055 but it must come last in the list of options (after /sender_retain
2056 or /domain=).
2057
433a2980
PH
2058PH/05 Some modifications to the interface to the fake nameserver for the new
2059 testing suite.
2060
3e46c1aa 2061
9a799bc0 2062
e3a311ba
TK
2063Exim version 4.53
2064-----------------
2065
2066TK/01 Added the "success_on_redirect" address verification option. See
2067 NewStuff for rationale and an example.
2068
13b685f9
PH
2069PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2070
395ff96d
PH
2071PH/02 Patch to exigrep to allow it to work on syslog lines.
2072
5b68f6e4
PH
2073PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2074 fread() to skip over the body file's header line, because in Cygwin the
2075 header line is locked and is inaccessible.
2076
1ab52c69
PH
2077PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2078 co-exist for some time) to make it clear that it is the Exim ID that is
2079 referenced, not the Message-ID: header line.
2080
b07e6aa3
PH
2081PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2082 string_format() function, because snprintf() does not exist on all
2083 operating systems.
2084
254e032f
PH
2085PH/06 The use of forbid_filter_existstest now also locks out the use of the
2086 ${stat: expansion item.
2087
3af76a81
PH
2088PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2089 protocol synchronization error", to keep the pedants happy.
2090
2548ba04
PH
2091PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2092 well as for IRIX systems, when gcc is being used. See the host.c source
2093 file for comments.
2094
b6c6011d
PH
2095PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2096
cf39cf57
PH
2097PH/10 Named domain lists were not working if used in a queue_smtp_domains
2098 setting.
2099
f1513293
PH
2100PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2101 transport and to the smtp transport in LMTP mode.
2102
727549a4
PH
2103TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2104
af46795e
PH
2105PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2106 run a filter in a subprocess. This could lead to confusion in subsequent
2107 lookups in the parent process. There should also be a search_tidyup() at
2108 the end of the subprocess.
2109
d7b47fd0
PH
2110PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2111 only if the host matched helo_try_verify_hosts, which caused the
2112 verification to occur when the EHLO/HELO command was issued. The ACL just
2113 tested the remembered result. Now, if a previous verification attempt has
2114 not happened, "verify = helo" does it there and then.
2115
ee744174
JJ
2116JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2117
b582ab87
PH
2118TK/03 Fix log output including CR from clamd.
2119
41a13e0a
PH
2120PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2121 exist provoked a memory error which could cause a segfault.
2122
f625cc5a
PH
2123PH/15 Installed PCRE 6.2
2124
2125PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2126
21f7af35
PH
2127PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2128 of the problem. Specifically, suggested +O2 rather than +O1 for the
2129 HP-UX compiler.
2130
31480e42
PH
2131PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2132
2d280592
PH
2133PH/20 If a delivery was routed to a non-standard port by means of an SRV
2134 record, the port was not correctly logged when the outgoing_port log
2135 selector was set (it logged the transort's default port).
2136
7cd1141b
PH
2137PH/21 Added support for host-specific ports to manualroute, queryprogram,
2138 fallback_hosts, and "hosts" in the smtp transport.
2139
2140PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2141 host errors such as "Connection refused".
2142
750af86e
PH
2143PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2144 authentication with radiusclient 0.4.9:
2145
2146 - Error returned from rc_read_config was caught wrongly
2147 - Username/password not passed on to radius server due to wrong length.
2148
2149 The presumption is that some radiusclient API changes for 4.51/PH/17
2150 were not taken care of correctly. The code is still untested by me (my
2151 Linux distribution still has 0.3.2 of radiusclient), but it was
2152 contributed by a Radius user.
2153
2154PH/24 When doing a callout, the value of $domain wasn't set correctly when
2155 expanding the "port" option of the smtp transport.
2156
4304270b
TK
2157TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2158 while reading a MIME header. Thanks to Tom Hughes for a patch.
2159
750af86e
PH
2160PH/24 Include config.h inside local_scan.h so that configuration settings are
2161 available.
2162
64ffc24f
PH
2163PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2164 that in an ACL for RCPT (for example), you can examine exactly what was
2165 received.
2166
5dd9625b
PH
2167PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2168 commands, but it was not correctly comparing the address with the actual
2169 client host address. Thus, it would show the EHLO address in Received:
2170 header lines when this was not necessary.
2171
5591031b
PH
2172PH/27 Added the % operator to ${eval:}.
2173
ba18e66a
PH
2174PH/28 Exim tries to create and chdir to its spool directory when it starts;
2175 it should be ignoring failures (because with -C, for example, it has lost
2176 privilege). It wasn't ignoring creation failures other than "already
2177 exists".
2178
9cec981f
PH
2179PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2180 -bV or -d is used.
2181
aa2b5c79
PH
2182PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2183 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2184 too many continuations, the temporary file was not being removed, and the
2185 return code was incorrect.
aa2b5c79 2186
48a53b7f
PH
2187PH/31 Missing "BOOL" in function definition in filtertest.c.
2188
1c59d63b
PH
2189PH/32 Applied Sieve patches from the maintainer.
2190
671012da
TK
2191TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2192
1509d3a8
PH
2193PH/33 Added "verify = not_blind".
2194
2195PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2196 Local/Makefile (with some defaults set). These are used in built scripts
2197 such as exicyclog, but they have never been used in the exim_install
2198 script (though there are many overriding facilities there). I have
2199 arranged that the exim_install script now takes note of these two
2200 settings.
2201
2202PH/35 Installed configuration files for Dragonfly.
2203
2fe1a124
PH
2204PH/36 When a locally submitted message by a trusted user did not contain a
2205 From: header, and the sender address was obtained from -f or from an SMTP
2206 MAIL command, and the trusted user did not use -F to supply a sender
2207 name, $originator_name was incorrectly used when constructing a From:
2208 header. Furthermore, $originator_name was used for submission mode
2209 messages from external hosts without From: headers in a similar way,
2210 which is clearly wrong.
2211
8800895a
PH
2212PH/37 Added control=suppress_local_fixups.
2213
ccfdb010
PH
2214PH/38 When log_selector = +received_sender was set, and the addition of the
2215 sender made the log line's construction buffer exactly full, or one byte
2216 less than full, an overflow happened when the terminating "\n" was
2217 subsequently added.
2218
1130bfb0
PH
2219PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2220 when the result of a list match is failure because a DNS lookup failed.
2221
ebcb507f
PH
2222PH/40 RM_COMMAND is now used in the building process.
2223
c35e155c
PH
2224PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2225 the "build-* directories that it finds.
2226
95d1f782
PH
2227PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2228 address in a domain literal was a prefix of an interface address.
2229
fd6de02e
PH
2230PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2231 when verifying a sender address, unless rewrite_headers is false.
2232
58de37c5
PH
2233PH/44 Wrote a long comment about why errors_to addresses are verified as
2234 recipients, not senders.
2235
261cf466
TF
2236TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2237 the ratelimit ACL was added.
2238
3ee512ff
PH
2239PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2240
e08c430f
PH
2241PH/46 Added extra information about PostgreSQL errors to the error string.
2242
bef5a11f
PH
2243PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2244 avoiding the need to install special zones in a real server. This is
2245 backwards compatible; if it can't find the fake resolver, it drops back.
2246 Thus, both old and new test suites can be run.
2247
7546de58
TF
2248TF/02 Added util/ratelimit.pl
2249
e5d5a95f
TF
2250TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2251 clock is set back in time.
2252
2e88a017
TF
2253TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2254 Candler <B.Candler@pobox.com>.
2255
a5f65aa4
TF
2256TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2257 OK for addresses that are the result of redirections.
2258
e7726cbf
PH
2259PH/48 A number of further additions for the benefit of the new test suite,
2260 including a fake gethostbyname() that interfaces to the fake DNS resolver
2261 (see PH/47 above).
2262
a7fdad5b
TF
2263TF/06 The fix for widen_domains has also been applied to qualify_single and
2264 search_parents which are the other dnslookup options that can cause
2265 header rewrites.
2266
6af56900
PH
2267PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2268 type ("H").
2269
0925ede6
PH
2270PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2271
66afa403
TF
2272TF/07 Exim produced the error message "an SRV record indicated no SMTP
2273 service" if it encountered an MX record with an empty target hostname.
2274 The message is now "an MX or SRV record indicated no SMTP service".
2275
0154e85a
TF
2276TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2277 if the DNS of the sending site is misconfigured. This is quite a
2278 common situation. This change restores the behaviour of treating a
2279 helo verification defer as a failure.
2280
16f12c76
PH
2281PH/51 If self=fail was set on a router, the bounce message did not include the
2282 actual error message.
2283
bbe902f0 2284
e5a9dba6
PH
2285Exim version 4.52
2286-----------------
2287
2288TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2289
22c3b60b
PH
2290PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2291 command itself ended in error, the underlying message about the transport
2292 filter timeout was being overwritten with the pipe command error. Now the
2293 underlying error message should be appended to the second error message.
2294
06a9b4b5
PH
2295TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2296
c1ac6996
PH
2297PH/02 Reduce the amount of output that "make" produces by default. Full output
2298 can still be requested.
2299
9c7a242c
PH
2300PH/03 The warning log line about a condition test deferring for a "warn" verb
2301 was being output only once per connection, rather than after each
2302 occurrence (because it was using the same function as for successful
2303 "warn" verbs). This seems wrong, so I have changed it.
2304
87ba3f5f
PH
2305TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2306 it should not have, which might have caused a crash in the right
2307 circumstances, but probably never did.
2308
2309PH/04 Installed a modified version of Tony Finch's patch to make submission
2310 mode fix the return path as well as the Sender: header line, and to
2311 add a /name= option so that you can make the user's friendly name appear
2312 in the header line.
2313
29aba418
TF
2314TF/03 Added the control = fakedefer ACL modifier.
2315
fe0dab11
TF
2316TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2317 Mark Lowes for thorough testing.
870f6ba8 2318
11d337a4
TK
2319TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2320
2321TK/03 Merged latest SRS patch from Miles Wilton.
2322
415c8f3b
PH
2323PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2324 with the definition in sysexits.h (which is #included earlier).
2325 Fortunately, Exim does not actually use EX_OK. The code used to try to
2326 preserve the sysexits.h value, by assumimg that macro definitions were
2327 scanned for macro replacements. I have been disabused of this notion,
2328 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2329
958541e9
PH
2330PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2331 in the smtp transport. When a block could not be written in a single
2332 write() function, the timeout was being re-applied to each part-write.
2333 This seems wrong - if the receiver was accepting one byte at a time it
2334 would take for ever. The timeout is now adjusted when this happens. It
2335 doesn't have to be particularly precise.
2336
c206415f
TK
2337TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2338 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2339
2a4be8f9
PH
2340PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2341 without a domain if the check to <postmaster@domain> fails.
2342
1cba11c5
SC
2343SC/01 Eximstats: added -xls and the ability to specify output files
2344 (patch written by Frank Heydlauf).
2345
2346SC/02 Eximstats: use FileHandles for outputing results.
2347
2348SC/03 Eximstats: allow any combination of xls, txt, and html output.
2349
2350SC/04 Eximstats: fixed display of large numbers with -nvr option
2351
2352SC/05 Eximstats: fixed merging of reports with empty tables.
2353
2354SC/06 Eximstats: added the -include_original_destination flag
2355
2356SC/07 Eximstats: removed tabs and trailing whitespace.
2357
1005d00e
TK
2358TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2359
2360TK/06 MBOX spool code: Add real "From " MBOX separator line
2361 so the .eml file is really in mbox format (even though
2362 most programs do not really care). Patch from Alex Miller.
2363
2364TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2365 The latter is generated from $received_to and is only set if the
2366 message has one envelope recipient. SA can use these headers,
2367 obviously out-of-the-box. Patch from Alex Miller.
2368
9b4768fa
PH
2369PH/08 The ${def test on a variable was returning false if the variable's
2370 value was "0", contrary to what the specification has always said!
2371 The result should be true unless the variable is empty.
2372
2373PH/09 The syntax error of a character other than { following "${if
2374 def:variable_name" (after optional whitespace) was not being diagnosed.
2375 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2376 accidental colon was present, for example, could give incorrect results.
2377
0d7eb84a
PH
2378PH/10 Tidied the code in a number of places where the st_size field of a stat()
2379 result is used (not including appendfile, where other changes are about
2380 to be made).
2381
2382PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2383 This involved changing a lot of size variables from int to off_t. It
2384 should work with maildirs and everything.
2385
40727bee
TK
2386TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2387 spamd dying while we are connected to it.
2388
554d2369
TF
2389TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2390 <jgh@wizmail.org>
2391
1f922db1
PH
2392PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2393 function for BDB 4.3.
2394
ef213c3b
PH
2395PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2396
8ac170f3
PH
2397PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2398 the sources for PCRE have been re-arranged and more files are now
2399 involved.
2400
b1c749bb
PH
2401PH/15 The code I had for printing potentially long long variables in PH/11
2402 above was not the best (it lost precision). The length of off_t variables
2403 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2404 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2405 to be "long long int" or "long int". This is needed for the internal
2406 formatting function string_vformat().
b1c749bb 2407
4aac9b49
PH
2408PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2409 the configuration file to be ":syslog", then the script "guesses" where
2410 the logs files are, rather than using the compiled in default. In our
2411 case the guess is not the same as the compiled default, so the script
2412 suddenly stopped working when I started to use syslog. The patch checks
2413 to see if log_file_path is "". If so, it attempts to read it from exim
2414 with no configuration file to get the compiled in version, before it
2415 falls back to the previous guessing code."
2416
294520c8
TK
2417TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2418 implementing BATV in an Exim configuration. See NewStuff for the gory
2419 details.
2420
5bd022fe
PH
2421PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2422 Makefile that are specific to HP-UX.
2423
90e9ce59
PH
2424PH/18 If the "use_postmaster" option was set for a recipient callout together
2425 with the "random" option, the postmaster address was used as the MAIL
2426 FROM address for the random test, but not for the subsequent recipient
2427 test. It is now used for both.
2428
5ea81592
PH
2429PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2430 patch removes a few documentation additions to RFC 3028, because the
2431 latest draft now contains them. It adds the new en;ascii-case comparator
2432 and a new error check for 8bit text in MIME parts. Comparator and
2433 require names are now matched exactly. I enabled the subaddress
2434 extension, but it is not well tested yet (read: it works for me)."
2435
c6c2dc1d
PH
2436PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2437 rework some of the code of TK/09 above to avoid the hardwired use of
2438 "%lld" and "long long". Replaced the call to snprintf() with a call to
2439 string_vformat().
2440
fffffe4c
PH
2441PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2442 records point to non-existent hosts", "retry timeout exceeded", and
2443 "retry time not reached for any host after a long failure period".
ca02eafb 2444
9a26b6b2
PH
2445PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2446 experimental DomainKeys support:
2447
2448 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2449 (2) On an error such as an illegally used "control", the wrong name for
2450 the control was given.
2451
2452 These problems did NOT occur unless DomainKeys support was compiled.
2453
4aee0225
PH
2454PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2455
32d668a5
PH
2456PH/24 Added ${if match_ip condition.
2457
8187c3f3
PH
2458PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2459 databases so that it will be absolutely obvious if a crash occurs in the
2460 DB library. This is a regular occurrence (often caused by mis-matched
2461 db.h files).
2462
ff790e47 2463PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2464 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2465 picked up on a user's system that detects such things. There doesn't seem
2466 to be a gcc warning option for this - only an attribute that has to be
2467 put on the function's prototype. It seems that in Fedora Core 4 they have
2468 set this on a number of new functions. No doubt there will be more in due
2469 course.
ff790e47 2470
5417f6d1
PH
2471PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2472 specify a transport. However, if an address that was verified by such a
2473 router was the subject of a callout, Exim crashed because it tried to
2474 read the rcpt_include_affixes from the non-existent transport. Now it
2475 just assumes that the setting of that option is false. This bug was
2476 introduced by 4.51/PH/31.
2477
59cf8544
PH
2478PH/28 Changed -d+all to exclude +memory, because that information is very
2479 rarely of interest, but it makes the output a lot bigger. People tend to
2480 do -d+all out of habit.
2481
e7ad8a65
PH
2482PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2483 code in os-type was giving problems when libc.so lives in lib64, like on
2484 x86_64 Fedora Core.
2485
ade42478
PH
2486PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2487 aren't the modern standard, and it seems that some systems' include files
2488 don't always have them. Exim was already checking for some of the newer
2489 ones like T_AAAA, and defining it itself. I've added checks for all the
2490 record types that Exim uses.
2491
182ad5cf
PH
2492PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2493 not automatically generating a new one, as it is supposed to. This
2494 prevented TLS from working. If the file did exist, but contained invalid
2495 data, a new version was generated, as expected. It was only the case of a
2496 non-existent file that was broken.
2497
b0d9fc80
TK
2498TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2499 with a change in libdomainkeys > 0.64.
2500
2501TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2502 from DNS. If the selector record carries the flag, it now has
2503 precedence over the domain-wide flag.
2504
2505TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2506
47c7a64a
PH
2507PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2508 the use of a port name that isn't defined in /etc/services) occurred, the
2509 message was deferred as in a normal delivery, and thus remained on the
2510 spool, instead of being failed because of the mua_wrapper setting. This
2511 is now fixed, and I tidied up some of the mua_wrapper messages at the
2512 same time.
2513
a388bce4
SC
2514SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2515 the messages in a hash of arrays rather than using individual hashes.
2516 This is a bit cleaner and results in dramatic memory savings, albeit
2517 at a slight CPU cost.
2518
2519SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2520 as requested by Marc Sherman.
2521
2522SC/10 Eximstats: added histograms for user specified patterns as requested
2523 by Marc Sherman.
2524
0793e4ed
SC
2525SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2526
c58b88df
PH
2527PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2528 fopen() in the content-scanning modules that did not already have it.
2529
e7ad8a65 2530
7982096b
PH
2531Exim version 4.51
2532-----------------
2533
1a46a8c5
PH
2534TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2535 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2536
2f079f46 2537TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2538
2539TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2540
2541PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2542 to test Sieve filters that use "vacation".
2543
2544PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2545 that changes the way the GnuTLS parameters are stored in the cache file.
2546 The new format can be generated externally. For backward compatibility,
2547 if the data in the cache doesn't make sense, Exim assumes it has read an
2548 old-format file, and it generates new data and writes a new file. This
2549 means that you can't go back to an older release without removing the
2550 file.
2551
2552PH/03 A redirect router that has both "unseen" and "one_time" set does not
2553 work if there are any delivery delays because "one_time" forces the
2554 parent to be marked "delivered", so its unseen clone is never tried
2555 again. For this reason, Exim now forbids the simultaneous setting of
2556 these two options.
2557
2558PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2559 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2560 entry if you want to know the details. The fix, however, neglected to
2561 consider the case when local delivery batching is involved. The test for
2562 "previously delivered" was not happening when checking to see if an
2563 address could be batched with a previous (undelivered) one; under
2564 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2565 address.
1a46a8c5
PH
2566
2567PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2568 in its include files, and this causes problems building Exim.
2569
2570PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2571 header_syntax) but Exim was just ignoring anything given after a slash.
2572 In particular, this caused confusion with an attempt to use "verify =
2573 reverse_host_lookup/defer_ok". An error is now given when options are
2574 supplied for verify items that do not have them. (Maybe reverse_host_
2575 lookup should have a defer_ok option, but that's a different point.)
2576
2577PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2578 defined by RFC 821) to 2048, because there were problems with some AUTH
2579 commands, and RFC 1869 says the size should be increased for extended
2580 SMTP commands that take arguments.
2581
2582PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2583 Finch).
2584
2585PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2586 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2587
49c2d5ea
PH
2588PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2589 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2590 whatever). Otherwise the password may appear in the log. Following change
2591 PH/42 below, there is no longer a chance of it appearing in a bounce
2592 message.
49c2d5ea 2593
bf759a8b
PH
2594PH/11 Installed exipick version 20050225.0 from John Jetmore.
2595
83364d30
PH
2596PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2597 of its addresses was ever tried. (Bugzilla bug #2.)
2598
7999bbd7
PH
2599PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2600 the result incorrectly in the debug output. (It correctly added a newline
2601 to what was transported.)
2602
7dbf77c9
PH
2603TF/01 Added $received_time.
2604
74e0617f
PH
2605PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2606 commented out examples of how to interface to a virus scanner and to
2607 SpamAssassin. Also added commented examples of av_scanner and
2608 spamd_address settings.
2609
2f079f46
PH
2610PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2611 and controls are allowed in which ACLs. There were a couple of minor
2612 errors. Some of the entries in the conditions table (which is a table of
2613 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2614 negation of where the condition IS allowed.
2615
8c841523
PH
2616PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2617
7766a4f0
PH
2618PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2619 header file does not have a version number, so I've had to invent a new
2620 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2621 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2622 radiusclient), but it was contributed by a Radius user.
2623
8b417f2c
PH
2624PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2625 files or directories, for OpenSSL.
2626
901f42cb
PH
2627PH/19 When an Exim process that is running as root has to create an Exim log
2628 file, it does so in a subprocess that runs as exim:exim so as to get the
2629 ownership right at creation (otherwise, other Exim processes might see
2630 the file with the wrong ownership). There was no test for failure of this
2631 fork() call, which would lead to the process getting stuck as it waited
2632 for a non-existent subprocess. Forks do occasionally fail when resources
2633 run out. I reviewed all the other calls to fork(); they all seem to check
2634 for failure.
2635
f9b9210e
PH
2636PH/20 When checking for unexpected SMTP input at connect time (before writing
2637 the banner), Exim was not dealing correctly with a non-positive return
2638 from the read() function. If the client had disconnected by this time,
2639 the result was a log entry for a synchronization error with an empty
2640 string after "input=" when read() returned zero. If read() returned -1
2641 (an event I could not check), uninitialized data bytes were printed.
2642 There were reports of junk text (parts of files, etc) appearing after
2643 "input=".
2644
54cdb463
PH
2645PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2646
cf00dad6
PH
2647PH/22 Added support for macro redefinition, and (re)definition in between
2648 driver and ACL definitions.
2649
acb1b346
PH
2650PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2651 forgetting to use the resulting value; it was using the unexpanded value.
2652
c5ddb310
PH
2653PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2654 hadn't been configured. The fix is from Juergen Kreileder, who
2655 understands it better than I do:
2656
2657 "Here's what I see happening with three configured cyrus_sasl
2658 authenticators configured (plain, login, cram-md5):
2659
2660 On startup auth_cyrus_sasl_init() gets called for each of these.
2661 This means three calls to sasl_listmech() without a specified mech_list.
2662 => SASL tests which mechs of all available mechs actually work
2663 => three warnings about OTP not working
2664 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2665
2666 With the patch, sasl_listmech() also gets called three times. But now
2667 SASL's mech_list option is set to the server_mech specified in the the
2668 authenticator. Or in other words, the answer from sasl_listmech()
2669 gets limited to just the mech you're testing for (which is different
2670 for each call.)
2671 => the return list contains just 'plain' or 'login', 'cram-md5' or
2672 nothing depending on the value of ob->server_mech.
2673
2674 I've just tested the patch: Authentication still works fine,
2675 unavailable mechs specified in the exim configuration are still
2676 caught, and the auth.log warnings about OTP are gone."
2677
31619da6
PH
2678PH/25 When debugging is enabled, the contents of the command line are added
2679 to the debugging output, even when log_selector=+arguments is not
2680 specified.
2681
bebaf0fc
PH
2682PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2683 answer is "GNU", and only if the return is "GNU/something" is the answer
2684 "Linux".
2685
475fe28a
PH
2686PH/27 $acl_verify_message is now set immediately after the failure of a
2687 verification in an ACL, and so is available in subsequent modifiers. In
2688 particular, the message can be preserved by coding like this:
2689
2690 warn !verify = sender
2691 set acl_m0 = $acl_verify_message
2692
2693 Previously, $acl_verify_message was set only while expanding "message"
2694 and "log_message" when a very denied access.
2695
7e8bec7a
PH
2696PH/28 Modified OS/os.c-Linux with
2697
2698 -#ifndef OS_LOAD_AVERAGE
2699 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2700
2701 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2702 nomenclature these days.)
2703
e4a89c47
PH
2704PH/29 Installed patch from the Sieve maintainer that adds the options
2705 sieve_useraddress and sieve_subaddress to the redirect router.
2706
5ca2a9a1
PH
2707PH/30 In these circumstances:
2708 . Two addresses routed to the same list of hosts;
2709 . First host does not offer TLS;
2710 . First host accepts first address;
2711 . First host gives temporary error to second address;
2712 . Second host offers TLS and a TLS session is established;
2713 . Second host accepts second address.
2714 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2715 and peerdn, if requested) that were in fact used only for the second
2716 address.
7e8bec7a 2717
c688b954
PH
2718PH/31 When doing a callout as part of verifying an address, Exim was not paying
2719 attention to any local part prefix or suffix that was matched by the
2720 router that accepted the address. It now behaves in the same way as it
2721 does for delivery: the affixes are removed from the local part unless
2722 rcpt_include_affixes is set on the transport.
2723
fed77020
PH
2724PH/32 Add the sender address, as F=<...>, to the log line when logging a
2725 timeout during the DATA phase of an incoming message.
2726
7fe1560f
PH
2727PH/33 Sieve envelope tests were broken for match types other than :is. I have
2728 applied a patch sanctioned by the Sieve maintainer.
c688b954 2729
ebb6e6d5
PH
2730PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2731 the uid or gid is negative. A case of a negative gid caused this to be
2732 noticed. The fix allows for either to be negative.
2733
9c4e8f60
PH
2734PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2735 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2736 overlooked.
2737
2738PH/36 The change PH/12 above was broken. Fixed it.
2739
d7174846
PH
2740PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2741 the grounds that routing the same address twice would always produce the
2742 same answer. This might have been true once, but it is certainly no
2743 longer true now. Routing a child address may depend on the previous
2744 routing that produced that child. Some complicated redirection strategies
2745 went wrong when messages had multiple recipients, and made Exim's
2746 behaviour dependent on the order in which the addresses were given.
2747
2748 I have moved the duplicate checking until after the routing is complete.
2749 Exim scans the addresses that are assigned to local and remote
2750 transports, and removes any duplicates. This means that more work will be
2751 done, as duplicates will always all be routed, but duplicates are
2752 presumably rare, so I don't expect this is of any significance.
2753
2754 For deliveries to pipes, files, and autoreplies, the duplicate checking
2755 still happens during the routing process, since they are not going to be
2756 routed further.
2757
cfe75fc3
PH
2758PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2759 It corrects a timeout issue with spamd. This is Ian's comment: "The
2760 background is that sometimes spamd either never reads data from a
2761 connection it has accepted, or it never writes response data. The exiscan
2762 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2763 blindly assumes that writes won't block so it may never time out."
2764
be22d70e
PH
2765PH/39 Allow G after quota size as well as K and M.
2766
0612b098
PH
2767PH/40 The value set for $authenticated_id in an authenticator may not contain
2768 binary zeroes or newlines because the value is written to log lines and
2769 to spool files. There was no check on this. Now the value is run through
2770 the string_printing() function so that such characters are converted to
2771 printable escape sequences.
2772
2e0c1448
PH
2773PH/41 $message_linecount is a new variable that contains the total number of
2774 lines in the message. Compare $body_linecount, which is the count for the
2775 body only.
2776
447d236c
PH
2777PH/42 Exim no longer gives details of delivery errors for specific addresses in
2778 bounce and delay warning messages, except in certain special cases, which
2779 are as follows:
2780
2781 (a) An SMTP error message from a remote host;
2782 (b) A message specified in a :fail: redirection;
2783 (c) A message specified in a "fail" command in a system filter;
2784 (d) A message specified in a FAIL return from the queryprogram router;
2785 (e) A message specified by the cannot_route_message router option.
2786
2787 In these cases only, Exim does include the error details in bounce and
2788 warning messages. There are also a few cases where bland messages such
2789 as "unrouteable address" or "local delivery error" are given.
2790
d20976dc
PH
2791PH/43 $value is now also set for the "else" part of a ${run expansion.
2792
f656d135
PH
2793PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2794 being worked on, but at least Exim now implements the latest version to
2795 play with."
2796
2e2a30b4
PH
2797PH/45 In a pipe transport, although a timeout while waiting for the pipe
2798 process to complete was treated as a delivery failure, a timeout while
2799 writing the message to the pipe was logged, but erroneously treated as a
2800 successful delivery. Such timeouts include transport filter timeouts. For
2801 consistency with the overall process timeout, these timeouts are now
2802 treated as errors, giving rise to delivery failures by default. However,
2803 there is now a new Boolean option for the pipe transport called
2804 timeout_defer, which, if set TRUE, converts the failures into defers for
2805 both kinds of timeout. A transport filter timeout is now identified in
2806 the log output.
2807
9176e9f0
PH
2808PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2809 systems where "make" and "gmake" are different, calling "gmake" at top
2810 level broke things. I've arranged for the value of $(MAKE) to be passed
2811 from the Makefile to this script so that it can call the same version of
2812 "make".
2813
7982096b 2814
bbe902f0
PH
2815A note about Exim versions 4.44 and 4.50
2816----------------------------------------
2817
2818Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2819changes of various kinds. As a consequence, a big documentation update was
2820needed. This delayed the release for rather longer than seemed good, especially
2821in the light of a couple of (minor) security issues. Therefore, the changes
2822that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2823release. So 4.44 and 4.50 are in effect two different branches that both start
2824from 4.43.
2825
2826I have left the 4.50 change log unchanged; it contains all the changes since
28274.43. The change log for 4.44 is below; many of its items are identical to
2828those for 4.50. This seems to be the most sensible way to preserve the
2829historical information.
2830
2831
f7b63901 2832Exim version 4.50
495ae4b0
PH
2833-----------------
2834
5fe762f6
PH
2835 1. Minor wording change to the doc/README.SIEVE file.
2836
139059f6 2837 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2838 computation of the current number of files was incorrect.
495ae4b0 2839
7086e875
PH
2840 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2841 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2842 place.
2843
35af9f61
PH
2844 4. Give more explanation in the error message when the command for a transport
2845 filter fails to execute.
2846
b668c215
PH
2847 5. There are several places where Exim runs a non-Exim command in a
2848 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2849 was being done only for the command run by the queryprogram router. It is
2850 now done for all such subprocesses. The other cases are: ${run, transport
2851 filters, and the commands run by the lmtp and pipe transports.
2852
a494b1e1
PH
2853 6. Added CONFIGURE_GROUP build-time option.
2854
2855 7. Some older OS have a limit of 256 on the maximum number of file
2856 descriptors. Exim was using setrlimit() to set 1000 as a large value
2857 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2858 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2859
c5fcb476
PH
2860 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2861 was an oversight, and furthermore, ever since the addition of extra
2862 controls (e.g. 4.43/32), the checks on when to allow different forms of
2863 "control" were broken. There should now be diagnostics for all cases when a
2864 control that does not make sense is encountered.
2865
69358f02
PH
2866 9. Added the /retain_sender option to "control=submission".
2867
5be20824
PH
286810. $recipients is now available in the predata ACL (oversight).
2869
eb2c0248
PH
287011. Tidy the search cache before the fork to do a delivery from a message
2871 received from the command line. Otherwise the child will trigger a lookup
2872 failure and thereby defer the delivery if it tries to use (for example) a
2873 cached ldap connection that the parent has called unbind on.
2874
2a3eea10
PH
287512. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2876 of $address_data from the recipient verification was clobbered by the
2877 sender verification.
2878
287913. The value of address_data from a sender verification is now available in
2880 $sender_address_data in subsequent conditions in the ACL statement.
2881
23c7ff99
PH
288214. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2883
4deaf07d
PH
288415. Added a new option "connect=<time>" to callout options, to set a different
2885 connection timeout.
2886
926e1192
PH
288716. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2888 was its contents. (It was OK if the option was not defined at all.)
2889
650edc6f
PH
289017. A "Completed" log line is now written for messages that are removed from
2891 the spool by the -Mrm option.
2892
2c7db3f5
PH
289318. New variables $sender_verify_failure and $recipient_verify_failure contain
2894 information about exactly what failed.
2895
3d235903
PH
289619. Added -dd to debug only the daemon process.
2897
7c7ad977
PH
289820. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2899 handles timeouts, both on the server side and network timeouts. Renamed the
2900 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2901
981756db
PH
290221. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2903 It is now set to "smtps".
2904
d4eb88df
PH
290522. $host_address is now set to the target address during the checking of
2906 ignore_target_hosts.
2907
290823. When checking ignore_target_hosts for an ipliteral router, no host name was
2909 being passed; this would have caused $sender_host_name to have been used if
2910 matching the list had actually called for a host name (not very likely,
2911 since this list is usually IP addresses). A host name is now passed as
2912 "[x.x.x.x]".
2913
7d468ab8
PH
291424. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2915 code that specifies a non-restarting handler (typically sigaction() in
2916 modern systems) in an attempt to fix a rare and obscure crash bug.
2917
291825. Narrowed the window for a race in the daemon that could cause it to ignore
2919 SIGCHLD signals. This is not a major problem, because they are used only to
2920 wake it up if nothing else does.
2921
62c0818f
PH
292226. A malformed maildirsize file could cause Exim to calculate negative values
2923 for the mailbox size or file count. Odd effects could occur as a result.
2924 The maildirsize information is now recalculated if the size or filecount
2925 end up negative.
2926
26034054
PH
292727. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2928 support for a long time. Removed HAVE_SYS_VFS_H.
2929
af66f652
PH
293028. Installed the latest version of exipick from John Jetmore.
2931
90af77f4
PH
293229. In an address list, if the pattern was not a regular expression, an empty
2933 subject address (from a bounce message) matched only if the pattern was an
2934 empty string. Non-empty patterns were not even tested. This was the wrong
2935 because it is perfectly reasonable to use an empty address as part of a
2936 database query. An empty address is now tested by patterns that are
2937 lookups. However, all the other forms of pattern expect the subject to
2938 contain a local part and a domain, and therefore, for them, an empty
2939 address still always fails if the pattern is not itself empty.
2940
d8ef3577
PH
294130. Exim went into a mad DNS loop when attempting to do a callout where the
2942 host was specified on an smtp transport, and looking it up yielded more
2943 than one IP address.
2944
5cb8cbc6
PH
294531. Re-factored the code for checking spool and log partition space into a
2946 function that finds that data and another that does the check. The former
2947 is then used to implement four new variables: $spool_space, $log_space,
2948 $spool_inodes, and $log_inodes.
2949
14702f5b
PH
295032. The RFC2047 encoding function was originally intended for short strings
2951 such as real names; it was not keeping to the 75-character limit for
2952 encoded words that the RFC imposes. It now respects the limit, and
2953 generates multiple encoded words if necessary. To be on the safe side, I
2954 have increased the buffer size for the ${rfc2047: expansion operator from
2955 1024 to 2048 bytes.
2956
063b1e99
PH
295733. It is now permitted to omit both strings after an "if" condition; if the
2958 condition is true, the result is "true". As before, when the second string
2959 is omitted, a false condition yields an empty string. This makes it less
2960 cumbersome to write custom ACL and router conditions.
2961
652e1b65
PH
296234. Failure to deliver a bounce message always caused it to be frozen, even if
2963 there was an errors_to setting on the router. The errors_to setting is now
2964 respected.
2965
6f0c9a4f
PH
296635. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2967 canonical form (fully expanded) before being placed in
2968 $sender_host_address.
2969
33397d19
PH
297036. The table in the code that translates DNS record types into text (T_A to
2971 "A" for instance) was missing entries for NS and CNAME. It is just possible
2972 that this could have caused confusion if both these types were looked up
2973 for the same domain, because the text type is used as part of Exim's
2974 per-process caching. But the chance of anyone hitting this buglet seems
2975 very small.
2976
7bb56e1f
PH
297737. The dnsdb lookup has been extended in a number of ways.
2978
2979 (1) There is a new type, "zns", which walks up the domain tree until it
2980 finds some nameserver records. It should be used with care.
2981
ea3bc19b
PH
2982 (2) There is a new type, "mxh", which is like "mx" except that it returns
2983 just the host names, not the priorities.
2984
2985 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2986 looked up. The behaviour when one of the lookups defers can be
2987 controlled by a keyword.
7bb56e1f 2988
ea3bc19b 2989 (4) It is now possible to specify the separator character for use when
7bb56e1f 2990 multiple records are returned.
33397d19 2991
0bcb2a0e
PH
299238. The dnslists ACL condition has been extended: it is now possible to supply
2993 a list of IP addresses and/or domains to be looked up in a particular DNS
2994 domain.
2995
2ac0e484
PH
299639. Added log_selector=+queue_time_overall.
2997
4e1fde53
PH
299840. When running the queue in the test harness, wait just a tad after forking a
2999 delivery process, to get repeatability of debugging output.
3000
de365ded
PH
300141. Include certificate and key file names in error message when GnuTLS fails
3002 to set them up, because the GnuTLS error message doesn't include the name
3003 of the failing file when there is a problem reading it.
3004
f05da2e8
PH
300542. Allow both -bf and -bF in the same test run.
3006
d6453af2
PH
300743. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
3008
f7b63901
PH
300944. The "Exiscan patch" is now merged into the mainline Exim source.
3010
301145. Sometimes the final signoff response after QUIT could fail to get
3012 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3013 < 0 before doing a fflush(). This bug looks as though it goes back to the
3014 introduction of TLS in release 3.20, but "sometimes" must have been rare
3015 because the tests only now provoked it.
3016
a444213a
PH
301746. Reset the locale to "C" after calling embedded Perl, in case it was changed
3018 (this can affect the format of dates).
3019
0ec020ea
PH
302047. exim_tidydb, when checking for the continued existence of a message for
3021 which it has found a message-specific retry record, was not finding
3022 messages that were in split spool directories. Consequently, it was
3023 deleting retry records that should have stayed in existence.
3024
b1206957
PH
302548. Steve fixed some bugs in eximstats.
3026
302749. The SPA authentication driver was not abandoning authentication and moving
3028 on to the next authenticator when an expansion was forced to fail,
3029 contradicting the general specification for all authenticators. Instead it
3030 was generating a temporary error. It now behaves as specified.
3031
26dd5a95
PH
303250. The default ordering of permitted cipher suites for GnuTLS was pessimal
3033 (the order specifies the preference for clients). The order is now AES256,
3034 AES128, 3DES, ARCFOUR128.
3035
343b2385
PH
303651. Small patch to Sieve code - explicitly set From: when generating an
3037 autoreply.
3038
1c5466b9
PH
303952. Exim crashed if a remote delivery caused a very long error message to be
3040 recorded - for instance if somebody sent an entire SpamAssassin report back
3041 as a large number of 550 error lines. This bug was coincidentally fixed by
3042 increasing the size of one of Exim's internal buffers (big_buffer) that
3043 happened as part of the Exiscan merge. However, to be on the safe side, I
3044 have made the code more robust (and fixed the comments that describe what
3045 is going on).
3046
55ee9ee3
PH
304753. Now that there can be additional text after "Completed" in log lines (if
3048 the queue_time_overall log selector is set), a one-byte patch to exigrep
3049 was needed to allow it to recognize "Completed" as not the last thing in
3050 the line.
3051
d38f8232
PH
305254. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
3053 patch that reportedly fixes this has been added. I am not expert enough to
3054 create a test for it. This is what the patch creator wrote:
3055
3056 "I found a little strange behaviour of ldap code when working with
3057 Windows 2003 AD Domain, where users was placed in more than one
3058 Organization Units. When I tried to give exim partial DN, the exit code
3059 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
3060 But simultaneously result of request was absolutely normal ldap result,
3061 so I produce this patch..."
3062
3295e65b
PH
3063 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
3064 REFERENCE, so I have modified the code to exclude the patch when that macro
3065 is not defined.
3066
7102e136
PH
306755. Some experimental protocols are using DNS PTR records for new purposes. The
3068 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
3069 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3070 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 3071 CAN-2005-0021
7102e136 3072
3ca0ba97
PH
307356. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
3074
c2bcbe20
PH
307557. Double the size of the debug message buffer (to 2048) so that more of very
3076 long debug lines gets shown.
3077
18ce445d
PH
307858. The exicyclog utility now does better if the number of log files to keep
3079 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
3080
1f5b4c3d
PH
308159. Two changes related to the smtp_active_hostname option:
3082
3083 (1) $smtp_active_hostname is now available as a variable.
3084 (2) The default for smtp_banner uses $smtp_active_hostname instead
3085 of $primary_hostname.
3086
b975ba52
PH
308760. The host_aton() function is supposed to be passed a string that is known
3088 to be a valid IP address. However, in the case of IPv6 addresses, it was
3089 not checking this. This is a hostage to fortune. Exim now panics and dies
3090 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
3091 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3092 components; fortuitously, this particular loophole had already been fixed
3093 by change 4.50/55 above.
3094
3095 If there are any other similar loopholes, the new check in host_aton()
3096 itself should stop them being exploited. The report I received stated that
3097 data on the command line could provoke the exploit when Exim was running as
3098 exim, but did not say which command line option was involved. All I could
3099 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3100 running as the user.
ea3a6f44 3101 CAN-2005-0021
85b87bc2
PH
3102
310361. There was a buffer overflow vulnerability in the SPA authentication code
3104 (which came originally from the Samba project). I have added a test to the
3105 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 3106 CAN-2005-0022
b975ba52 3107
17ffcae7
PH
310862. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3109 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3110
d95f9fdb
PH
311163. The daemon start-up calls getloadavg() while still root for those OS that
3112 need the first call to be done as root, but it missed one case: when
3113 deliver_queue_load_max is set with deliver_drop_privilege. This is
3114 necessary for the benefit of the queue runner, because there is no re-exec
3115 when deliver_drop_privilege is set.
3116
86b8287f
PH
311764. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3118 This has been fixed.
3119
60dc5e56
PH
312065. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3121 was in use, was not putting the data itself into the right store pool;
3122 consequently, it could be overwritten for a subsequent message in the same
3123 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3124 the caching.)
3125
533244af
PH
312666. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3127
a5a28604
PH
312867. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3129 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3130 the function were treating the return as a boolean value, which happened to
3131 work because 0=false and not-0=true, but is not correct code.
3132
7e634d24
PH
313368. The host_aton() function was not handling scoped IPv6 addresses (those
3134 with, for example, "%eth0" on the end) correctly.
3135
3e11c26b
PH
313669. Fixed some compiler warnings in acl.c for the bitmaps specified with
3137 negated items (that is, ~something) in unsigned ints. Some compilers
3138 apparently mutter when there is no cast.
3139
6729cf78
PH
314070. If an address verification called from an ACL failed, and did not produce a
3141 user-specific message (i.e. there was only a "system" message), nothing was
3142 put in $acl_verify_message. In this situation, it now puts the system
3143 message there.
3144
00f00ca5
PH
314571. Change 4.23/11 added synchronization checking at the start of an SMTP
3146 session; change 4.31/43 added the unwanted input to the log line - except
3147 that it did not do this in the start of session case. It now does.
3148
c9bdd01c
PH
314972. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3150 This is wrong and can cause the other end to generate a synchronization
3151 error if it is another Exim or anything else that does the synchronization
3152 check. A QUIT command is no longer sent after a timeout.
3153
d43194df
PH
315473. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3155 during host lookups.
3156
fe5b5d0b
PH
315774. The defer_ok option of callout verification was not working if it was used
3158 when verifying addresses in header lines, that is, for this case:
3159
3160 verify = header_sender/callout=defer_ok
3161
76a2d7ba
PH
316275. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3163 those file descriptors could be used for SMTP connections. If anything
3164 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3165 could be sent to the SMTP client, causing chaos. The daemon now opens
3166 stdin, stdout, and stderr to /dev/null when it puts itself into the
3167 background.
3168
316976. Arrange for output from Perl's "warn" command to be written to Exim's main
3170 log by default. The user can override this with suitable Perl magic.
3171
04f7d5b9
PH
317277. The use of log_message on a "discard" ACL verb, which is supposed to add to
3173 the log message when discard triggers, was not working for the DATA ACL or
3174 for the non-SMTP ACL.
3175
bc60667e
PH
317678. Error message wording change in sieve.c.
3177
bb6e88ff
PH
317879. If smtp_accept_max_per_host was set, the number of connections could be
3179 restricted to fewer than expected, because the daemon was trying to set up
3180 a new connection before checking whether the processes handling previous
3181 connections had finished. The check for completed processes is now done
3182 earlier. On busy systems, this bug wouldn't be noticed because something
3183 else would have woken the daemon, and it would have reaped the completed
3184 process earlier.
3185
1e70f85b
PH
318680. If a message was submitted locally by a user whose login name contained one
3187 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3188 It caused a spool format error. I have fixed the spool reading code. A
3189 related problem was that the "from" clause in the Received: line became
3190 illegal because of the space(s). It is now covered by ${quote_local_part.
3191
319281. Included the latest eximstats from Steve (adds average sizes to HTML Top
3193 tables).
3194
4e01f9d6
PH
319582. Updated OS/Makefile-AIX as per message from Mike Meredith.
3196
1ee1cef2
PH
319783. Patch from Sieve maintainer to fix unterminated string problem in
3198 "vacation" handling.
3199
6e2b4ccc
PH
320084. Some minor changes to the Linux configuration files to help with other
3201 OS variants using glibc.
3202
8e669ac1
PH
320385. One more patch for Sieve to update vacation handling to latest spec.
3204
495ae4b0 3205
bbe902f0
PH
3206----------------------------------------------------
3207See the note above about the 4.44 and 4.50 releases.
3208----------------------------------------------------
3209
3210
3211Exim version 4.44
3212-----------------
3213
3214 1. Change 4.43/35 introduced a bug that caused file counts to be
3215 incorrectly computed when quota_filecount was set in an appendfile
3216 transport
3217
3218 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3219 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3220 place.
3221
3222 3. Give more explanation in the error message when the command for a transport
3223 filter fails to execute.
3224
3225 4. There are several places where Exim runs a non-Exim command in a
3226 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3227 was being done only for the command run by the queryprogram router. It is
3228 now done for all such subprocesses. The other cases are: ${run, transport
3229 filters, and the commands run by the lmtp and pipe transports.
3230
3231 5. Some older OS have a limit of 256 on the maximum number of file
3232 descriptors. Exim was using setrlimit() to set 1000 as a large value
3233 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3234 systems. I've change it so that if it can't get 1000, it tries for 256.
3235
3236 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3237 was an oversight, and furthermore, ever since the addition of extra
3238 controls (e.g. 4.43/32), the checks on when to allow different forms of
3239 "control" were broken. There should now be diagnostics for all cases when a
3240 control that does not make sense is encountered.
3241
3242 7. $recipients is now available in the predata ACL (oversight).
3243
3244 8. Tidy the search cache before the fork to do a delivery from a message
3245 received from the command line. Otherwise the child will trigger a lookup
3246 failure and thereby defer the delivery if it tries to use (for example) a
3247 cached ldap connection that the parent has called unbind on.
3248
3249 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3250 of $address_data from the recipient verification was clobbered by the
3251 sender verification.
3252
325310. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3254 was its contents. (It was OK if the option was not defined at all.)
3255
325611. A "Completed" log line is now written for messages that are removed from
3257 the spool by the -Mrm option.
3258
325912. $host_address is now set to the target address during the checking of
3260 ignore_target_hosts.
3261
326213. When checking ignore_target_hosts for an ipliteral router, no host name was
3263 being passed; this would have caused $sender_host_name to have been used if
3264 matching the list had actually called for a host name (not very likely,
3265 since this list is usually IP addresses). A host name is now passed as
3266 "[x.x.x.x]".
3267
326814. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3269 code that specifies a non-restarting handler (typically sigaction() in
3270 modern systems) in an attempt to fix a rare and obscure crash bug.
3271
327215. Narrowed the window for a race in the daemon that could cause it to ignore
3273 SIGCHLD signals. This is not a major problem, because they are used only to
3274 wake it up if nothing else does.
3275
327616. A malformed maildirsize file could cause Exim to calculate negative values
3277 for the mailbox size or file count. Odd effects could occur as a result.
3278 The maildirsize information is now recalculated if the size or filecount
3279 end up negative.
3280
328117. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3282 support for a long time. Removed HAVE_SYS_VFS_H.
3283
ea3a6f44 328418. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3285
328619. Allow an empty sender to be matched against a lookup in an address list.
3287 Previously the only cases considered were a regular expression, or an
3288 empty pattern.
3289
329020. Exim went into a mad DNS lookup loop when doing a callout where the
3291 host was specified on the transport, if the DNS lookup yielded more than
3292 one IP address.
3293
ea3a6f44
NM
329421. The RFC2047 encoding function was originally intended for short strings
3295 such as real names; it was not keeping to the 75-character limit for
3296 encoded words that the RFC imposes. It now respects the limit, and
3297 generates multiple encoded words if necessary. To be on the safe side, I
3298 have increased the buffer size for the ${rfc2047: expansion operator from
3299 1024 to 2048 bytes.
bbe902f0 3300
ea3a6f44
NM
330122. Failure to deliver a bounce message always caused it to be frozen, even if
3302 there was an errors_to setting on the router. The errors_to setting is now
3303 respected.
bbe902f0
PH
3304
330523. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3306 canonical form (fully expanded) before being placed in
3307 $sender_host_address.
3308
330924. Updated eximstats to version 1.33
3310
ea3a6f44
NM
331125. Include certificate and key file names in error message when GnuTLS fails
3312 to set them up, because the GnuTLS error message doesn't include the name
3313 of the failing file when there is a problem reading it.
bbe902f0
PH
3314
331526. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3316 As per change 25.
bbe902f0 3317
ea3a6f44
NM
331827. Reset the locale to "C" after calling embedded Perl, in case it was changed
3319 (this can affect the format of dates).
bbe902f0 3320
ea3a6f44
NM
332128. exim_tidydb, when checking for the continued existence of a message for
3322 which it has found a message-specific retry record, was not finding
3323 messages that were in split spool directories. Consequently, it was
3324 deleting retry records that should have stayed in existence.
bbe902f0
PH
3325
332629. eximstats updated to version 1.35
3327 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3328 1.35 - bugfix such that pie charts by volume are generated correctly
3329
ea3a6f44
NM
333030. The SPA authentication driver was not abandoning authentication and moving
3331 on to the next authenticator when an expansion was forced to fail,
3332 contradicting the general specification for all authenticators. Instead it
3333 was generating a temporary error. It now behaves as specified.
bbe902f0 3334
ea3a6f44
NM
333531. The default ordering of permitted cipher suites for GnuTLS was pessimal
3336 (the order specifies the preference for clients). The order is now AES256,
3337 AES128, 3DES, ARCFOUR128.
bbe902f0 3338
ea3a6f44
NM
333931. Small patch to Sieve code - explicitly set From: when generating an
3340 autoreply.
bbe902f0 3341
ea3a6f44
NM
334232. Exim crashed if a remote delivery caused a very long error message to be
3343 recorded - for instance if somebody sent an entire SpamAssassin report back
3344 as a large number of 550 error lines. This bug was coincidentally fixed by
3345 increasing the size of one of Exim's internal buffers (big_buffer) that
3346 happened as part of the Exiscan merge. However, to be on the safe side, I
3347 have made the code more robust (and fixed the comments that describe what
3348 is going on).
bbe902f0 3349
ea3a6f44
NM
335033. Some experimental protocols are using DNS PTR records for new purposes. The
3351 keys for these records are domain names, not reversed IP addresses. The
3352 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3353 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3354 CAN-2005-0021
3355
ea3a6f44
NM
335634. The host_aton() function is supposed to be passed a string that is known
3357 to be a valid IP address. However, in the case of IPv6 addresses, it was
3358 not checking this. This is a hostage to fortune. Exim now panics and dies
3359 if the condition is not met. A case was found where this could be provoked
3360 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3361 components; fortuitously, this particular loophole had already been fixed
3362 by change 4.50/55 or 4.44/33 above.
3363
3364 If there are any other similar loopholes, the new check in host_aton()
3365 itself should stop them being exploited. The report I received stated that
3366 data on the command line could provoke the exploit when Exim was running as
3367 exim, but did not say which command line option was involved. All I could
3368 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3369 running as the user.
bbe902f0
PH
3370 CAN-2005-0021
3371
ea3a6f44
NM
337235. There was a buffer overflow vulnerability in the SPA authentication code
3373 (which came originally from the Samba project). I have added a test to the
3374 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3375 CAN-2005-0022
3376
ea3a6f44
NM
337736. The daemon start-up calls getloadavg() while still root for those OS that
3378 need the first call to be done as root, but it missed one case: when
3379 deliver_queue_load_max is set with deliver_drop_privilege. This is
3380 necessary for the benefit of the queue runner, because there is no re-exec
3381 when deliver_drop_privilege is set.
bbe902f0 3382
ea3a6f44
NM
338337. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3384 was in use, was not putting the data itself into the right store pool;
3385 consequently, it could be overwritten for a subsequent message in the same
3386 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3387 the caching.)
bbe902f0 3388
ea3a6f44
NM
338938. Sometimes the final signoff response after QUIT could fail to get
3390 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3391 < 0 before doing a fflush(). This bug looks as though it goes back to the
3392 introduction of TLS in release 3.20, but "sometimes" must have been rare
3393 because the tests only now provoked it.
bbe902f0
PH
3394
3395
495ae4b0
PH
3396Exim version 4.43
3397-----------------
3398
3399 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3400 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3401 Now it returns an integer. A number of calls were still expecting a T/F
3402 return. Fortuitously, in all cases, the tests worked in OK situations,
3403 which is the norm. However, things would have gone wrong on any write
3404 failures on the smtp file descriptor. This function is used when sending
3405 messages over SMTP and also when doing verify callouts.
3406
3407 2. When Exim is called to do synchronous delivery of a locally submitted
3408 message (the -odf or -odi options), it no longer closes stderr before doing
3409 the delivery.
3410
3411 3. Implemented the mua_wrapper option.
3412
3413 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3414
3415 5. Implemented the functions header_remove(), header_testname(),
3416 header_add_at_position(), and receive_remove_recipient(), and exported them
3417 to local_scan().