Another PCRE remnant.
[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
792e8a19
TF
86TF/06 Removed a few PCRE remnants.
87
0ca0cf52 88
10906672
PP
89Exim version 4.76
90-----------------
91
92PP/01 The new ldap_require_cert option would segfault if used. Fixed.
93
754a0503
PP
94PP/02 Harmonised TLS library version reporting; only show if debugging.
95 Layout now matches that introduced for other libraries in 4.74 PP/03.
96
c0c7b2da
PP
97PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
98
e97d1f08
PP
99PP/04 New "dns_use_edns0" global option.
100
084c1d8c
PP
101PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
102 Bugzilla 1098.
103
4e7ee012
PP
104PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
105 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 106
c8d52a00
PP
107TK/01 Updated PolarSSL code to 0.14.2.
108 Bugzilla 1097. Patch from Andreas Metzler.
109
54e7ce4a
PP
110PP/07 Catch divide-by-zero in ${eval:...}.
111 Fixes bugzilla 1102.
112
5ee6f336
PP
113PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
114 Bugzilla 1104.
115
c8d52a00 116TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
117 format-string attack -- SECURITY: remote arbitrary code execution.
118
119TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
120 time unintentionally subject to list matching rules, letting the header
121 cause arbitrary Exim lookups (of items which can occur in lists, *not*
122 arbitrary string expansion). This allowed for information disclosure.
123
124PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
125 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 126
10906672 127
aa097c4c
NM
128Exim version 4.75
129-----------------
130
4c9ef03a 131NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
132 Bugzilla 1073
133
7f3d9eff
TF
134TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
135 This fixes portability to compilers other than gcc, notably
136 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
137
159f52d2
TF
138TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
139 makefiles for portability to HP-UX and POSIX correctness.
140
0cc9542a
PP
141PP/01 Permit LOOKUP_foo enabling on the make command-line.
142 Also via indented variable definition in the Makefile.
143 (Debugging by Oliver Heesakkers).
144
f7274286
PP
145PP/02 Restore caching of spamd results with expanded spamd_address.
146 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
147
7b797365
PP
148PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
149 Improves build reliability. Fix from: Frank Elsner
150
caacae52
NM
151NM/02 Fix wide character breakage in the rfc2047 coding
152 Fixes bug 1064. Patch from Andrey N. Oktyabrski
153
09dcaba9
NM
154NM/03 Allow underscore in dnslist lookups
155 Fixes bug 1026. Patch from Graeme Fowler
156
bc19a55b
PP
157PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
158 Code patches from Adam Ciarcinski of NetBSD.
caacae52 159
bd4c9759
NM
160NM/04 Fixed exiqgrep to cope with mailq missing size issue
161 Fixes bug 943.
162
b72aab72
PP
163PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
164 is logged, to avoid truncation. Patch from John Horne.
165
2fe76745
PP
166PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
167 Patch from Jakob Hirsch.
168
76aa570c
PP
169PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
170 SQL string expansion failure details.
171 Patch from Andrey Oktyabrski.
172
f1e5fef5
PP
173PP/08 Bugzilla 486: implement %M datestamping in log filenames.
174 Patch from Simon Arlott.
175
4d805ee9
PP
176PP/09 New lookups functionality failed to compile on old gcc which rejects
177 extern declarations in function scope.
178 Patch from Oliver Fleischmann
179
cd59ab18
PP
180PP/10 Use sig_atomic_t for flags set from signal handlers.
181 Check getgroups() return and improve debugging.
182 Fixed developed for diagnosis in bug 927 (which turned out to be
183 a kernel bug).
184
332f5cf3
PP
185PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
186 Patch from Mark Zealey.
187
29cfeb94
PP
188PP/12 Bugzilla 1056: Improved spamd server selection.
189 Patch from Mark Zealey.
190
660242ad
PP
191PP/13 Bugzilla 1086: Deal with maildir quota file races.
192 Based on patch from Heiko Schlittermann.
193
bc4bc4c5
PP
194PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
195 Patch from Uwe Doering, sign-off by Michael Haardt.
196
2e64baa9
NM
197NM/05 Fix to spam.c to accommodate older gcc versions which dislike
198 variable declaration deep within a block. Bug and patch from
199 Dennis Davis.
200
bddd7526
PP
201PP/15 lookups-Makefile IRIX compatibilty coercion.
202
6bac1a9a
PP
203PP/16 Make DISABLE_DKIM build knob functional.
204
552193f0
NM
205NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
206 Patch by Simon Arlott
baeee2c1 207
1b587e48
TF
208TF/03 Fix valgrind.h portability to C89 compilers that do not support
209 variable argument macros. Our copy now differs from upstream.
210
aa097c4c 211
8c07b69f
TF
212Exim version 4.74
213-----------------
214
215TF/01 Failure to get a lock on a hints database can have serious
216 consequences so log it to the panic log.
217
c0ea85ab
TF
218TF/02 Log LMTP confirmation messages in the same way as SMTP,
219 controlled using the smtp_confirmation log selector.
220
0761d44e
TF
221TF/03 Include the error message when we fail to unlink a spool file.
222
0a349494
PP
223DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
224 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
225 for maintaining out-of-tree patches for some time.
226
227PP/01 Bugzilla 139: Documentation and portability issues.
228 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
229 Handle per-OS dynamic-module compilation flags.
230
fea24b2e
PP
231PP/02 Let /dev/null have normal permissions.
232 The 4.73 fixes were a little too stringent and complained about the
233 permissions on /dev/null. Exempt it from some checks.
234 Reported by Andreas M. Kirchwitz.
235
6545de78
PP
236PP/03 Report version information for many libraries, including
237 Exim version information for dynamically loaded libraries. Created
238 version.h, now support a version extension string for distributors
239 who patch heavily. Dynamic module ABI change.
240
1670ef10
PP
241PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
242 privilege escalation vulnerability whereby the Exim run-time user
243 can cause root to append content of the attacker's choosing to
244 arbitrary files.
245
c0886197
PP
246PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
247 (Wolfgang Breyha)
248
b7487bce
PP
249PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
250 If dropping privileges for untrusted macros, we disabled normal logging
251 on the basis that it would fail; for the Exim run-time user, this is not
252 the case, and it resulted in successful deliveries going unlogged.
253 Fixed. Reported by Andreas Metzler.
254
8c07b69f 255
97fd1e48 256Exim version 4.73
ed7f7860 257-----------------
97fd1e48
PP
258
259PP/01 Date: & Message-Id: revert to normally being appended to a message,
260 only prepend for the Resent-* case. Fixes regression introduced in
261 Exim 4.70 by NM/22 for Bugzilla 607.
262
6901c596
PP
263PP/02 Include check_rfc2047_length in configure.default because we're seeing
264 increasing numbers of administrators be bitten by this.
265
a8c8d6b5
JJ
266JJ/01 Added DISABLE_DKIM and comment to src/EDITME
267
77bb000f
PP
268PP/03 Bugzilla 994: added openssl_options main configuration option.
269
a29e5231
PP
270PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
271
ec5a0394 272PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 273
55c75993
PP
274PP/06 Adjust NTLM authentication to handle SASL Initial Response.
275
453a6645 276PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
277 without a peer certificate, leading to a segfault because of an
278 assumption that peers always have certificates. Be a little more
453a6645
PP
279 paranoid. Problem reported by Martin Tscholak.
280
8544e77a
PP
281PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
282 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
283 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
284 CL also introduces -bmalware, various -d+acl logging additions and
285 more caution in buffer sizes.
8544e77a 286
83e029d5
PP
287PP/09 Implemented reverse_ip expansion operator.
288
ed7f7860
PP
289PP/10 Bugzilla 937: provide a "debug" ACL control.
290
7d9f747b
PP
291PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
292
4b2241d2
PP
293PP/12 Bugzilla 973: Implement --version.
294
10385c15
PP
295PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
296
dbc4b90d
PP
297PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
298
532be449
PP
299PP/15 Bugzilla 816: support multiple condition rules on Routers.
300
6a8de854 301PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
302 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
303 ignore trailing whitespace.
6a8de854 304
5dc43717
JJ
305JJ/02 prevent non-panic DKIM error from being sent to paniclog
306
307JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
308 "exim" to be used
55c75993 309
3346ab01
PP
310PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
311 Notification from Dr Andrew Aitchison.
312
491fab4c
PP
313PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
314 ExtendedDetectionInfo response format.
315 Notification from John Horne.
316
13eb9497
PP
317PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
318 compatible.
319
320PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
321 XSL and documented dependency on system catalogs, with examples of how
322 it normally works.
323
7f36d675
DW
324DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
325 access.
326
c1d94452
DW
327DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
328 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
329 configuration file which is writeable by the Exim user or group.
330
e2f5dc15
DW
331DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
332 of configuration files to cover files specified with the -C option if
333 they are going to be used with root privileges, not just the default
334 configuration file.
335
cd25e41d
DW
336DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
337 option (effectively making it always true).
338
261dc43e
DW
339DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
340 files to be used while preserving root privileges.
341
fa32850b
DW
342DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
343 that rogue child processes cannot use them.
344
79d4bc3d
PP
345PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
346 run-time user, instead of root.
347
43236f35 348PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
349 Exim run-time user without dropping privileges.
350
fb08281f
DW
351DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
352 result string, instead of calling string_vformat() twice with the same
353 arguments.
3346ab01 354
74935b98
DW
355DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
356 for other users. Others should always drop root privileges if they use
357 -C on the command line, even for a whitelisted configure file.
358
90b6341f
DW
359DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
360
57730b52
ML
361NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
362
66581d1e 363
465e92cf
JJ
364Exim version 4.72
365-----------------
366
453a6645
PP
367JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
368 $data_path, and $header_path variables; fixed documentation bugs and
369 typos
465e92cf 370
453a6645
PP
371JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
372 exipick to access non-standard spools, including the "frozen" queue
373 (Finput)
edae0343 374
9bd3e22c
NM
375NM/01 Bugzilla 965: Support mysql stored procedures.
376 Patch from Alain Williams
377
bb576ff7
NM
378NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
379
5a1a5845
NM
380NM/03 Bugzilla 955: Documentation fix for max_rcpts.
381 Patch from Andreas Metzler
382
981a9fad
NM
383NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
384 Patch from Kirill Miazine
385
7fc497ee
NM
386NM/05 Bugzilla 671: Added umask to procmail example.
387
1a41defa
JJ
388JJ/03 installed exipick 20100323.0, fixing doc bug
389
a466095c 390NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 391 directory. Notification and patch from Dan Rosenberg.
a466095c 392
94a6bd0b
NM
393TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
394
395TK/02 Improve log output when DKIM signing operation fails.
396
397MH/01 Treat the transport option dkim_domain as a colon separated
398 list, not as a single string, and sign the message with each element,
399 omitting multiple occurences of the same signer.
400
c1b141a8
NM
401NM/07 Null terminate DKIM strings, Null initialise DKIM variable
402 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 403
b26eacf1 404NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
405 Patch by Simon Arlott
406
179c5980 407PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 408 MBX locking. Notification from Dan Rosenberg.
179c5980 409
9bd3e22c 410
7c6d71af
NM
411Exim version 4.71
412-----------------
413
7d9f747b 414TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 415
f013fb92
NM
416NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
417
0eb8eedd
NM
418NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
419
663ee6d9
NM
420NM/03 Bugzilla 847: Enable DNSDB lookup by default.
421
177ebd9b
NM
422NM/04 Bugzilla 915: Flag broken perl installation during build.
423
7c6d71af 424
210f147e
NM
425Exim version 4.70
426-----------------
427
cdd3bb85 428TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 429 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
430
431TK/02 Write list of recipients to X-Envelope-Sender header when building
432 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 433 Hirsch).
cdd3bb85
TK
434
435TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
436 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 437 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
438
439TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
440 by Mark Daniel Reidel <mr@df.eu>.
441
210f147e
NM
442NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
443 When building exim an external PCRE library is now needed -
444 PCRE is a system library on the majority of modern systems.
445 See entry on PCRE_LIBS in EDITME file.
446
deafd5b3
NM
447NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
448 conversation. Added nologin parameter to request.
7d9f747b 449 Patch contributed by Kirill Miazine.
deafd5b3 450
089793a4
TF
451TF/01 Do not log submission mode rewrites if they do not change the address.
452
5f16ca82
TF
453TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
454
dae9d94e 455NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 456 log files in place. Contributed by Roberto Lima.
dae9d94e 457
7d9f747b 458NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 459
06864c44
TF
460TF/03 Bugzilla 615: When checking the local_parts router precondition
461 after a local_part_suffix or local_part_prefix option, Exim now
462 does not use the address's named list lookup cache, since this
463 contains cached lookups for the whole local part.
464
65a7d8c3 465NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 466 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 467
23510047 468TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 469
7d9f747b 470NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 471
7d8eec3a 472NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 473 Patch provided by Jan Srzednicki.
6c588e74 474
89dec7b6
TF
475TF/05 Leading white space used to be stripped from $spam_report which
476 wrecked the formatting. Now it is preserved.
5f28a6e8 477
a99de90c
TF
478TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
479 that they are available at delivery time.
480
e2803e40
TF
481TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
482
7199e1ee
TF
483TF/08 TLS error reporting now respects the incoming_interface and
484 incoming_port log selectors.
485
e276e04b
TF
486TF/09 Produce a more useful error message if an SMTP transport's hosts
487 setting expands to an empty string.
488
ce552449 489NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 490 Patch provided by Phil Pennock.
ce552449 491
e765a0f1 492NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 493 Patch provided by Richard Godbee.
e765a0f1 494
4f054c63 495NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 496 acl_smtp_notquit, added index entry.
4f054c63 497
7d9f747b
PP
498NM/09 Bugzilla 787: Potential buffer overflow in string_format.
499 Patch provided by Eugene Bujak.
24c929a2 500
7d9f747b
PP
501NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
502 accept(). Patch provided by Maxim Dounin.
cf73943b 503
b52bc06e 504NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 505 Patch provided by Phil Pennock.
b52bc06e 506
447de4b0
NM
507NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
508
4c69d561 509NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 510 Patch provided by Brad "anomie" Jorsch.
4c69d561 511
d5c39246 512NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 513 Patch provided by Dean Brooks.
9b989985 514
0b23848a
TK
515TK/05 Add native DKIM support (does not depend on external libraries).
516
8f3414a1 517NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 518 Patch provided by Graeme Fowler.
e2aacdfd 519
fb6f955d
NM
520NM/16 Bugzilla 851: Documentation example syntax fix.
521
522NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 523
7d9f747b
PP
524NM/18 Bugzilla 894: Fix issue with very long lines including comments in
525 lsearch.
dbb0bf41 526
7d9f747b
PP
527NM/19 Bugzilla 745: TLS version reporting.
528 Patch provided by Phil Pennock.
f3766eb5 529
7d9f747b
PP
530NM/20 Bugzilla 167: bool: condition support.
531 Patch provided by Phil Pennock.
36f12725 532
7d9f747b
PP
533NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
534 clients. Patch provided by Phil Pennock.
e6060e2c 535
7d9f747b
PP
536NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
537 Patch provided by Brad "anomie" Jorsch.
5eb690a1 538
7d9f747b
PP
539NM/23 Bugzilla 687: Fix misparses in eximstats.
540 Patch provided by Heiko Schlittermann.
d5c13d66 541
7d9f747b
PP
542NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
543 Patch provided by Heiko Schlittermann.
b2335c0b 544
7d9f747b 545NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 546 plus update to original patch.
f4cd9433 547
7d9f747b 548NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 549
7d9f747b
PP
550NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
551 Patch provided by David Brownlee.
8dc71ab3 552
7d9f747b 553NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 554
7d9f747b 555NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 556
7d9f747b 557NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 558
7d9f747b 559NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 560
17792b53 561NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 562 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 563
7d9f747b
PP
564NM/33 Bugzilla 898: Transport filter timeout fix.
565 Patch by Todd Rinaldo.
52383f8f 566
7d9f747b
PP
567NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
568 Patch by Serge Demonchaux.
5ca6d115 569
7d9f747b
PP
570NM/35 Bugzilla 39: Base64 decode bug fixes.
571 Patch by Jakob Hirsch.
baee9eee 572
7d9f747b 573NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 574
7d9f747b 575NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 576
7d9f747b 577NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 578
7d9f747b 579NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 580
deafd5b3 581
47db1125
NM
582Exim version 4.69
583-----------------
584
4b3504d0
TK
585TK/01 Add preliminary DKIM support. Currently requires a forked version of
586 ALT-N's libdkim that I have put here:
587 http://duncanthrax.net/exim-experimental/
588
589 Note to Michael Haardt: I had to rename some vars in sieve.c. They
590 were called 'true' and it seems that C99 defines that as a reserved
591 keyword to be used with 'bool' variable types. That means you could
592 not include C99-style headers which use bools without triggering
593 build errors in sieve.c.
594
81ea09ca
NM
595NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
596 as mailq or other aliases. Changed the --help handling significantly
597 to do whats expected. exim_usage() emits usage/help information.
598
f13cddcb
SC
599SC/01 Added the -bylocaldomain option to eximstats.
600
7d9f747b 601NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 602
7d9f747b 603NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 604
7d9f747b 605NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
606
607
eb4c0de6
PH
608Exim version 4.68
609-----------------
610
611PH/01 Another patch from the Sieve maintainer.
612
6a3bceb1
PH
613PH/02 When an IPv6 address is converted to a string for single-key lookup
614 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
615 dots are used instead of colons so that keys in lsearch files need not
616 contain colons. This was done some time before quoting was made available
617 in lsearch files. However, iplsearch files do require colons in IPv6 keys
618 (notated using the quote facility) so as to distinguish them from IPv4
619 keys. This meant that lookups for IP addresses in host lists did not work
620 for iplsearch lookups.
621
622 This has been fixed by arranging for IPv6 addresses to be expressed with
623 colons if the lookup type is iplsearch. This is not incompatible, because
624 previously such lookups could never work.
625
626 The situation is now rather anomolous, since one *can* have colons in
627 ordinary lsearch keys. However, making the change in all cases is
628 incompatible and would probably break a number of configurations.
629
2e30fa9d
TK
630TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
631 version.
632
0806a9c5
MH
633MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
634 conversion specification without a maximum field width, thereby enabling
635 a rogue spamd server to cause a buffer overflow. While nobody in their
636 right mind would setup Exim to query an untrusted spamd server, an
637 attacker that gains access to a server running spamd could potentially
638 exploit this vulnerability to run arbitrary code as the Exim user.
639
ae276964
TK
640TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
641 $primary_hostname instead of what libspf2 thinks the hosts name is.
642
0f2cbd1b
MH
643MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
644 a directory entry by the name of the lookup key. Previously, if a
645 symlink pointed to a non-existing file or a file in a directory that
646 Exim lacked permissions to read, a lookup for a key matching that
647 symlink would fail. Now it is enough that a matching directory entry
648 exists, symlink or not. (Bugzilla 503.)
649
2b85bce7
PH
650PH/03 The body_linecount and body_zerocount variables are now exported in the
651 local_scan API.
652
93655c46
PH
653PH/04 Added the $dnslist_matched variable.
654
6c512171
PH
655PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
656 This means they are set thereafter only if the connection becomes
657 encrypted.
658
659PH/06 Added the client_condition to authenticators so that some can be skipped
660 by clients under certain conditions.
661
aa6dc513
PH
662PH/07 The error message for a badly-placed control=no_multiline_responses left
663 "_responses" off the end of the name.
664
a96603a0
PH
665PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
666
8f240103
PH
667PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
668 (without spaces) instead of just copying the configuration text.
669
670PH/10 Added the /noupdate option to the ratelimit ACL condition.
671
d677b2f2
PH
672PH/11 Added $max_received_linelength.
673
d52120f2
PH
674PH/12 Added +ignore_defer and +include_defer to host lists.
675
64f2600a
PH
676PH/13 Installed PCRE version 7.2. This needed some changes because of the new
677 way in which PCRE > 7.0 is built.
678
8669f003
PH
679PH/14 Implemented queue_only_load_latch.
680
a4dc33a8
PH
681PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
682 MAIL command. The effect was to mangle the value on 64-bit systems.
683
d6a60c0f
PH
684PH/16 Another patch from the Sieve maintainer.
685
8f128379
PH
686PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
687
8932dffe
PH
688PH/18 If a system quota error occurred while trying to create the file for
689 a maildir delivery, the message "Mailbox is full" was not appended to the
690 bounce if the delivery eventually timed out. Change 4.67/27 below applied
691 only to a quota excession during the actual writing of the file.
d6a60c0f 692
ddea74fa 693PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
694 characters?) which causes problems in log lines. The DN values are now
695 passed through string_printing() before being added to log lines.
696
ddea74fa 697PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
698 and InterBase are left for another time.)
699
ddea74fa
PH
700PH/21 Added message_body_newlines option.
701
ce9f225c
PH
702PH/22 Guard against possible overflow in moan_check_errorcopy().
703
19897d52
PH
704PH/23 POSIX allows open() to be a macro; guard against that.
705
bc64a74d
PH
706PH/24 If the recipient of an error message contained an @ in the local part
707 (suitably quoted, of course), incorrect values were put in $domain and
708 $local_part during the evaluation of errors_copy.
709
eb4c0de6 710
b4ed4da0
PH
711Exim version 4.67
712-----------------
713
22ad45c9
MH
714MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
715 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
716 Jan Srzednicki.
717
b4ed4da0
PH
718PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
719 issue a MAIL command.
720
431b7361
PH
721PH/02 In an ACL statement such as
722
723 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
724
725 if a client was not listed at all, or was listed with a value other than
726 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
727 the condition was not true (as it should be), so access was not denied.
728 The bug was that the ! inversion was incorrectly passed on to the second
729 item. This has been fixed.
730
731PH/03 Added additional dnslists conditions == and =& which are different from
732 = and & when the dns lookup returns more than one IP address.
733
83da1223
PH
734PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
735 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
736
54fc8428
PH
737PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
738 FSYNC, which compiles an option called disable_fsync that allows for
739 bypassing fsync(). The documentation is heavily laced with warnings.
740
34c5e8dd
SC
741SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
742
bbe15da8
PH
743PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
744 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
745 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
746 including adding "make clean"; (3) Added -fPIC when compiling the test
747 dynamically loaded module, to get rid of a warning.
748
0e8a9471
MH
749MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
750 message fails, move_frozen_messages = true and ignore_bounce_errors_after
751 = 0s. The bug is otherwise harmless.
752
f0872424
PH
753PH/07 There was a bug in the dovecot authenticator such that the value of
754 $auth1 could be overwritten, and so not correctly preserved, after a
755 successful authentication. This usually meant that the value preserved by
756 the server_setid option was incorrect.
757
b01dd148
PH
758PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
759
6bf342e1
PH
760PH/09 Installed PCRE release 7.0.
761
273f34d0
PH
762PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
763 run for batched SMTP input. It is now run at the start of every message
764 in the batch. While fixing this I discovered that the process information
765 (output by running exiwhat) was not always getting set for -bs and -bS
766 input. This is fixed, and it now also says "batched" for BSMTP.
767
cf8b11a5
PH
768PH/11 Added control=no_pipelining.
769
41c7c167
PH
770PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
771 patch, slightly modified), and move the expansion of helo_data till after
772 the connection is made in the smtp transport (so it can use these
773 values).
774
9c57cbc0
PH
775PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
776
f3f065bb
PH
777PH/14 Added log_selector = +pid.
778
047bdd8c
PH
779PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
780
0ce9abe6
PH
781PH/16 Add ${if forany and ${if forall.
782
0e22dfd1
PH
783PH/17 Added dsn_from option to vary the From: line in DSNs.
784
4c590bd1
PH
785PH/18 Flush SMTP output before performing a callout, unless control =
786 no_callout_flush is set.
787
09945f1e
PH
788PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
789 was true (the default) a successful delivery failed to delete the retry
790 item, thus causing premature timeout of the address. The bug is now
791 fixed.
792
c51b8e75
PH
793PH/20 Added hosts_avoid_pipelining to the smtp transport.
794
e28326d8
PH
795PH/21 Long custom messages for fakedefer and fakereject are now split up
796 into multiline reponses in the same way that messages for "deny" and
797 other ACL rejections are.
798
75b1493f
PH
799PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
800 with slight modification.
801
7c5214ec
PH
802PH/23 Applied sieve patches from the maintainer "tracking the latest notify
803 draft, changing the syntax and factoring some duplicate code".
804
4311097e
PH
805PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
806 for deliveries of the second and subsequent messages over the same SMTP
807 connection.
808
29f89cad
PH
809PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
810 ${reduce, with only minor "tidies".
811
5e687460
SC
812SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
813
c3611384
PH
814PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
815 expansion side effects.
816
5a11a7b4
PH
817PH/27 When a message times out after an over-quota error from an Exim-imposed
818 quota, the bounce message says "mailbox is full". This message was not
819 being given when it was a system quota that was exceeded. It now should
820 be the same.
821
0e20aff9
MH
822MH/03 Made $recipients available in local_scan(). local_scan() already has
823 better access to the recipient list through recipients_list[], but
824 $recipients can be useful in postmaster-provided expansion strings.
825
ca86f471
PH
826PH/28 The $smtp_command and $smtp_command_argument variables were not correct
827 in the case of a MAIL command with additional options following the
828 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
829 were accidentally chopped off.
830
a14e5636
PH
831PH/29 SMTP synchronization checks are implemented when a command is read -
832 there is a check that no more input is waiting when there shouldn't be
833 any. However, for some commands, a delay in an ACL can mean that it is
834 some time before the response is written. In this time, more input might
835 arrive, invalidly. So now there are extra checks after an ACL has run for
836 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
837 pipelining has not been advertised.
838
ec95d1a6
PH
839PH/30 MH's patch to allow iscntrl() characters to be list separators.
840
42855d71
PH
841PH/31 Unlike :fail:, a custom message specified with :defer: was not being
842 returned in the SMTP response when smtp_return_error_details was false.
843 This has been fixed.
844
57c2c631
PH
845PH/32 Change the Dovecot authenticator to use read() and write() on the socket
846 instead of the C I/O that was originally supplied, because problems were
847 reported on Solaris.
848
58c01c94
PH
849PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
850 Exim which did not show up earlier: it was assuming that a call to
851 SSL_CTX_set_info_callback() might give an error value. In fact, there is
852 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
853 was a macro that became an assignment, so it seemed to work. This has
854 changed to a proper function call with a void return, hence the compile
855 error. Exim's code has been fixed.
856
dee5a20a
PH
857PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
858 cpus.
859
d2ee6114
PH
860PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
861
b2d5182b
PH
862PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
863
79749a79
PH
864PH/37 If a message is not accepted after it has had an id assigned (e.g.
865 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
866 "Completed" line in the log. When some messages of this type were
867 selected by exigrep, they were listed as "not completed". Others were
868 picked up by some special patterns. I have improved the selection
869 criteria to be more general.
79749a79 870
c456d9bb
PH
871PH/38 The host_find_failed option in the manualroute router can now be set
872 to "ignore", to completely ignore a host whose IP address cannot be
873 found. If all hosts are ignored, the behaviour is controlled by the new
874 host_all_ignored option.
875
cd9868ec
PH
876PH/39 In a list of hosts for manualroute, if one item (either because of multi-
877 homing or because of multiple MX records with /mx) generated more than
878 one IP address, and the following item turned out to be the local host,
879 all the secondary addresses of the first item were incorrectly removed
880 from the list, along with the local host and any following hosts (which
881 is what is supposed to happen).
882
ebeaf996
PH
883PH/40 When Exim receives a message, it writes the login name, uid, and gid of
884 whoever called Exim into the -H file. In the case of the daemon it was
885 behaving confusingly. When first started, it used values for whoever
886 started the daemon, but after a SIGHUP it used the Exim user (because it
887 calls itself on a restart). I have changed the code so that it now always
888 uses the Exim user.
889
2679d413
PH
890PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
891 message are rejected with the same error (e.g. no authentication or bad
892 sender address), and a DATA command is nevertheless sent (as can happen
893 with PIPELINING or a stupid MUA), the error message that was given to the
894 RCPT commands is included in the rejection of the DATA command. This is
895 intended to be helpful for MUAs that show only the final error to their
896 users.
897
84024b72
PH
898PH/42 Another patch from the Sieve maintainer.
899
8005d38e
SC
900SC/02 Eximstats - Differentiate between permanent and temporary rejects.
901 Eximstats - Fixed some broken HTML links and added missing column headers
902 (Jez Hancock).
903 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
904 columns for Rejects, Temp Rejects, Ham, and Spam rows.
905
3298c6c6
SC
906SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
907
a43a27c5
PH
908PH/43 Yet another patch from the Sieve maintainer.
909
58eb016e 910PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
911 the response to the final '.' that terminates a message, but only in the
912 case where the client has not sent further data following the '.'
913 (unfortunately, this is allowed). However, in many cases there won't be
914 any further data because there won't be any more messages to send. A call
915 to select() can be used: if it shows that the input is "ready", there is
916 either input waiting, or the socket has been closed. An attempt to read
917 the next input character can distinguish the two cases. Previously, Exim
58eb016e 918 would have sent an OK response which the client would never have see.
563b63fa
PH
919 This could lead to message repetition. This fix should cure that, at
920 least in a lot of common cases.
58eb016e 921
b43a74ea
PH
922PH/45 Do not advertise STARTTLS in response to HELP unless it would be
923 advertised in response to EHLO.
924
b4ed4da0 925
5dd1517f
PH
926Exim version 4.66
927-----------------
928
929PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
930 fixed by 4.65/MH/01 (is this a record?) are fixed:
931
932 (i) An empty string was always treated as zero by the numeric comparison
933 operators. This behaviour has been restored.
934
935 (ii) It is documented that the numeric comparison operators always treat
936 their arguments as decimal numbers. This was broken in that numbers
937 starting with 0 were being interpreted as octal.
938
939 While fixing these problems I realized that there was another issue that
940 hadn't been noticed. Values of message_size_limit (both the global option
941 and the transport option) were treated as octal if they started with 0.
942 The documentation was vague. These values are now always treated as
943 decimal, and I will make that clear in the documentation.
944
945
93cfa765
TK
946Exim version 4.65
947-----------------
948
949TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
950 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
951 versions. (#438)
952
d6066548
MH
953MH/01 Don't check that the operands of numeric comparison operators are
954 integers when their expansion is in "skipping" mode (fixes bug
955 introduced by 4.64-PH/07).
956
4362ff0d
PH
957PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
958 child addresses, Exim now panics and dies. Previously, because the count
959 is held in a short int, deliveries were likely to be lost. As such a
960 large number of recipients for a single message is ridiculous
961 (performance will be very, very poor), I have chosen to impose a limit
962 rather than extend the field.
963
93cfa765 964
944e9e9c
TF
965Exim version 4.64
966-----------------
aa41d2de 967
21d74bd9
TK
968TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
969 leftover -K file (the existence of which was triggered by #402).
970 While we were at it, introduced process PID as part of the -K
971 filename. This should rule out race conditions when creating
972 these files.
973
974TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
975 processing considerably. Previous code took too long for large mails,
976 triggering a timeout which in turn triggers #401.
977
978TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
979 in the DK code in transports.c. sendfile() is not really portable,
980 hence the _LINUX specificness.
944e9e9c
TF
981
982TF/01 In the add_headers option to the mail command in an Exim filter,
983 there was a bug that Exim would claim a syntax error in any
984 header after the first one which had an odd number of characters
985 in the field name.
986
2b1c6e3a
PH
987PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
988 callout verification, Exim cached a "reject" for the entire domain. This
989 is correct for most verifications, but it is not correct for a recipient
990 verification with use_sender or use_postmaster set, because in that case
991 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
992 case of MAIL FROM:<> rejection from other early rejections (e.g.
993 rejection of HELO). When verifying a recipient using a non-null MAIL
994 address, the cache is ignored if it shows MAIL FROM:<> rejection.
995 Whatever the result of the callout, the value of the domain cache is
996 left unchanged (for any other kind of callout, getting as far as trying
997 RCPT means that the domain itself is ok).
998
1f872c80
PH
999PH/02 Tidied a number of unused variable and signed/unsigned warnings that
1000 gcc 4.1.1 threw up.
1001
1002PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1003 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1004 session, the daemon ignores ECONNECT errors and logs others; it now
1005 ignores EPIPE as well.
1006
d203e649
PH
1007PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1008 (quoted-printable decoding).
1009
cc2ed8f7 1010PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 1011 later the small subsequent patch to fix an introduced bug.
f951fd57 1012
ddfcd446
PH
1013PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1014
d45b1de8
PH
1015PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1016
1017PH/08 An error is now given if message_size_limit is specified negative.
1018
38a0a95f 1019PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 1020 to be given (somewhat) arbitrary names.
38a0a95f 1021
a2405d83
JJ
1022JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1023 in 4.64-PH/09.
1024
1025JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1026 miscellaneous code fixes
1027
6ea85e9a
PH
1028PH/10 Added the log_reject_target ACL modifier to specify where to log
1029 rejections.
1030
26da7e20
PH
1031PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1032 hostname. This is wrong, because it relates to the incoming message (and
1033 probably the interface on which it is arriving) and not to the outgoing
1034 callout (which could be using a different interface). This has been
1035 changed to use the value of the helo_data option from the smtp transport
1036 instead - this is what is used when a message is actually being sent. If
1037 there is no remote transport (possible with a router that sets up host
1038 addresses), $smtp_active_hostname is used.
6ea85e9a 1039
14aa5a05 1040PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 1041 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
1042 (a) The code assumed that strncpy() returns a negative number on buffer
1043 overflow, which isn't the case. Replaced with Exim's string_format()
1044 function.
1045 (b) There were several signed/unsigned issues. I just did the minimum
1046 hacking in of casts. There is scope for a larger refactoring.
1047 (c) The code used strcasecmp() which is not a standard C function.
1048 Replaced with Exim's strcmpic() function.
1049 (d) The code set only $1; it now sets $auth1 as well.
1050 (e) A simple test gave the error "authentication client didn't specify
1051 service in request". It would seem that Dovecot has changed its
1052 interface. Fortunately there's a specification; I followed it and
1053 changed what the client sends and it appears to be working now.
1054
ff75a1f7
PH
1055PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1056 decoding.
1057
e6f6568e
PH
1058PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1059 address A is aliased to B and C, where B exists and C does not. Without
1060 -v the output is "A verified" because verification stops after a
1061 successful redirection if more than one address is generated. However,
1062 with -v the child addresses are also verified. Exim was outputting "A
1063 failed to verify" and then showing the successful verification for C,
1064 with its parentage. It now outputs "B failed to verify", showing B's
1065 parentage before showing the successful verification of C.
1066
d6f6e0dc
PH
1067PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1068 look up a TXT record in a specific list after matching in a combined
1069 list.
1070
322050c2
PH
1071PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1072 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1073 they consult the DNS. I had assumed they would set it the way they
1074 wanted; and indeed my experiments on Linux seem to show that in some
1075 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1076 To be on the safe side, however, I have now made the interface to
1077 host_find_byname() similar to host_find_bydns(), with an argument
1078 containing the DNS resolver options. The host_find_byname() function now
1079 sets these options at its start, just as host_find_bydns() does. The smtp
1080 transport options dns_qualify_single and dns_search_parents are passed to
1081 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1082 of host_find_byname() use the default settings of RES_DEFNAMES
1083 (qualify_single) but not RES_DNSRCH (search_parents).
1084
08955dd3
PH
1085PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1086 spool_read_header() do less string testing, by means of a preliminary
1087 switch on the second character of optional "-foo" lines. (This is
1088 overdue, caused by the large number of possibilities that now exist.
1089 Originally there were few.) While I was there, I also converted the
1090 str(n)cmp tests so they don't re-test the leading "-" and the first
1091 character, in the hope this might squeeze out yet more improvement.
1092
1eccaa59
PH
1093PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1094 flag allowing group syntax was set by the header_syntax check but not
1095 turned off, possible causing trouble later; (2) The flag was not being
1096 set at all for the header_verify test, causing "group"-style headers to
1097 be rejected. I have now set it in this case, and also caused header_
1098 verify to ignore an empty address taken from a group. While doing this, I
1099 came across some other cases where the code for allowing group syntax
1100 while scanning a header line wasn't quite right (mostly, not resetting
1101 the flag correctly in the right place). These bugs could have caused
1102 trouble for malformed header lines. I hope it is now all correct.
1103
602e59e5
PH
1104PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1105 with the "reply" argument non-NULL. The code, however (which originally
1106 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1107 but it didn't always do it. This confused somebody who was copying the
1108 code for some other use. I have removed all the tests.
1109
411ef850
PH
1110PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1111 feature that was used to support insecure browsers during the U.S. crypto
1112 embargo. It requires special client support, and Exim is probably the
1113 only MTA that supported it -- and would never use it because real RSA is
1114 always available. This code has been removed, because it had the bad
1115 effect of slowing Exim down by computing (never used) parameters for the
1116 RSA_EXPORT functionality.
1117
7befa435
PH
1118PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1119 authenticator to fail if there's a tab character in the incoming data
1120 (there should never be unless someone is messing about, as it's supposed
1121 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1122 if the connection is using TLS or if the remote IP is the same as the
1123 local IP, and the "valid-client-cert option" if a client certificate has
1124 been verified.
1125
48da4259 1126PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1127 authenticators. This can be used for authorization after authentication
1128 succeeds. (In the case of plaintext, it servers for both authentication
1129 and authorization.)
1130
48da4259
PH
1131PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1132 if any retry times were supplied.
1133
d1d5595c
PH
1134PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1135 connection, where there is no client IP address to check. In this
1136 situation, the verify now always succeeds.
1137
0ef732d9
PH
1138PH/25 Applied John Jetmore's -Mset patch.
1139
328895cc
PH
1140PH/26 Added -bem to be like -Mset, but loading a message from a file.
1141
fd700877
PH
1142PH/27 In a string expansion for a processed (not raw) header when multiple
1143 headers of the same name were present, leading whitespace was being
1144 removed from all of them, but trailing whitespace was being removed only
1145 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1146 before concatenation. Completely empty headers in a concatenation (as
1147 before) are ignored.
fd700877 1148
8dce1a6f
PH
1149PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1150 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1151
17af4a17
PH
1152PH/29 [Removed. This was a change that I later backed out, and forgot to
1153 correct the ChangeLog entry (that I had efficiently created) before
1154 committing the later change.]
f6c332bd
PH
1155
1156PH/30 Exim was sometimes attempting to deliver messages that had suffered
1157 address errors (4xx response to RCPT) over the same connection as other
1158 messages routed to the same hosts. Such deliveries are always "forced",
1159 so retry times are not inspected. This resulted in far too many retries
1160 for the affected addresses. The effect occurred only when there were more
1161 hosts than the hosts_max_try setting in the smtp transport when it had
1162 the 4xx errors. Those hosts that it had tried were not added to the list
1163 of hosts for which the message was waiting, so if all were tried, there
1164 was no problem. Two fixes have been applied:
1165
1166 (i) If there are any address or message errors in an SMTP delivery, none
1167 of the hosts (tried or untried) are now added to the list of hosts
1168 for which the message is waiting, so the message should not be a
1169 candidate for sending over the same connection that was used for a
1170 successful delivery of some other message. This seems entirely
1171 reasonable: after all the message is NOT "waiting for some host".
1172 This is so "obvious" that I'm not sure why it wasn't done
1173 previously. Hope I haven't missed anything, but it can't do any
1174 harm, as the worst effect is to miss an optimization.
1175
1176 (ii) If, despite (i), such a delivery is accidentally attempted, the
1177 routing retry time is respected, so at least it doesn't keep
1178 hammering the server.
1179
c1114884
PH
1180PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1181 in ${readsocket because some servers need this prod.
1182
7a0743eb
PH
1183PH/32 Added some extra debug output when updating a wait-xxx database.
1184
0d85fa3f
PH
1185PH/33 The hint "could be header name not terminated by colon", which has been
1186 given for certain expansion errors for a long time, was not being given
1187 for the ${if def:h_colon_omitted{... case.
1188
1bf43b78
PH
1189PH/34 The spec says: "With one important exception, whenever a domain list is
1190 being scanned, $domain contains the subject domain." There was at least
1191 one case where this was not true.
1192
520de300
PH
1193PH/35 The error "getsockname() failed: connection reset by peer" was being
1194 written to the panic log as well as the main log, but it isn't really
1195 panic-worthy as it just means the connection died rather early on. I have
1196 removed the panic log writing for the ECONNRESET error when getsockname()
1197 fails.
1198
48c7f9e2
PH
1199PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1200 runs only) independently of the message's sender address. This meant
1201 that, if the 4xx error was in fact related to the sender, a different
1202 message to the same recipient with a different sender could confuse
1203 things. In particualar, this can happen when sending to a greylisting
1204 server, but other circumstances could also provoke similar problems.
1205 I have changed the default so that the retry time for these errors is now
1206 based a combination of the sender and recipient addresses. This change
1207 can be overridden by setting address_retry_include_sender=false in the
1208 smtp transport.
1209
99ea1c86
PH
1210PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1211 remote server are returned as part of bounce messages. This was not
1212 happening for LMTP over a pipe (the lmtp transport), but now it is the
1213 same for both kinds of LMTP.
1214
a2042e78
PH
1215PH/38 Despite being documented as not happening, Exim was rewriting addresses
1216 in header lines that were in fact CNAMEs. This is no longer the case.
1217
4fbcfc2e
PH
1218PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1219 and queue runs started by the daemon processed all messages. This has
1220 been fixed so that -R and -S can now usefully be given with -q<time>.
1221
aa41d2de
PH
1222PH/40 Import PCRE release 6.7 (fixes some bugs).
1223
af561417
PH
1224PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1225
3cc66b45
PH
1226PH/42 Give an error if -q is specified more than once.
1227
194cc0e4
PH
1228PH/43 Renamed the variables $interface_address and $interface_port as
1229 $received_ip_address and $received_port, to make it clear that these
1230 values apply to message reception, and not to the outgoing interface when
1231 a message is delivered. (The old names remain recognized, of course.)
1232
a401ddaa
PH
1233PH/44 There was no timeout on the connect() call when using a Unix domain
1234 socket in the ${readsocket expansion. There now is.
1235
4e88a19f
PH
1236PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1237 be meaningful with "accept".
1238
d7d7b289
SC
1239SC/01 Eximstats V1.43
1240 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1241
1242SC/02 Eximstats V1.44
1243 Use a glob alias rather than an array ref in the generated
1244 parser. This improves both readability and performance.
1245
1246SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1247 Collect SpamAssassin and rejection statistics.
1248 Don't display local sender or destination tables unless
1249 there is data to show.
1250 Added average volumes into the top table text output.
1251
1252SC/04 Eximstats V1.46
1253 Collect data on the number of addresses (recipients)
1254 as well as the number of messages.
1255
1256SC/05 Eximstats V1.47
1257 Added 'Message too big' to the list of mail rejection
1258 reasons (thanks to Marco Gaiarin).
1259
1260SC/06 Eximstats V1.48
1261 Mainlog lines which have GMT offsets and are too short to
1262 have a flag are now skipped.
1263
1264SC/07 Eximstats V1.49 (Alain Williams)
1265 Added the -emptyok flag.
1266
1267SC/08 Eximstats V1.50
1268 Fixes for obtaining the IP address from reject messages.
1269
0ea2a468
JJ
1270JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1271 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1272 whitesspace changes from 4.64-PH/27
1273
1274JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1275 match 4.64-PH/13
1276
1277JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1278 are found, allow negative numbers in numeric criteria)
1279
1280JJ/06 exipick.20061117.2, added new $message_body_missing variable
1281
1282JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1283 to match changes made in 4.64-PH/43
1284
8a10f5a4
PH
1285PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1286
30e18802
PH
1287PH/47 Put in an explicit test for a DNS lookup of an address record where the
1288 "domain" is actually an IP address, and force a failure. This locks out
1289 those revolvers/nameservers that support "A-for-A" lookups, in
1290 contravention of the specifications.
1291
55728a4f
PH
1292PH/48 When a host name was looked up from an IP address, and the subsequent
1293 forward lookup of the name timed out, the host name was left in
1294 $sender_host_name, contrary to the specification.
d7d7b289 1295
d7837193
PH
1296PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1297 restricted to single-key lookups, Exim was not diagnosing an error if
1298 * or *@ was used with a query-style lookup.
1299
87054a31
PH
1300PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1301
ea2c01d2
MH
1302MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1303 long ago, but noone interested enough thought of it. Let's just say that
1304 the "1.1" means that there are some new functions that weren't there at
1305 some point in the past.
1306
e4fa6968
PH
1307PH/51 Error processing for expansion failure of helo_data from an smtp
1308 transport during callout processing was broken.
1309
56f5d9bd
PH
1310PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1311 tested/used via the -bh/-bhc/-bs options.
1312
922e1c28
PH
1313PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1314 bug, fixed in subsequent PCRE releases).
1315
21eb6e72
PH
1316PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1317 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1318
a0540757
PH
1319PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1320
944e9e9c 1321
478be7b0
SC
1322Exim version 4.63
1323-----------------
1324
1325SC/01 Use a glob alias rather than an array ref in eximstats generated
1326 parser. This improves both readability and performance.
1327
1328SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1329 Don't display local sender or destination tables in eximstats unless
1330 there is data to show.
1331 Added average volumes into the eximstats top table text output.
1332
1333SC/03 Collect data on the number of addresses (recipients) as well
1334 as the number of messages in eximstats.
1335
2b965a65
TF
1336TF/01 Correct an error in the documentation for the redirect router. Exim
1337 does (usually) call initgroups() when daemonizing.
478be7b0 1338
45b91596
PH
1339TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1340 with consistent privilege compared to when running as a daemon.
478be7b0 1341
c59f5781
TF
1342TF/03 Note in the spec that $authenticated_id is not set for local
1343 submissions from trusted users.
1344
90fc3069
TF
1345TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1346 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1347
6083aca0
TF
1348TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1349 by adding some example configuration directives to the default
1350 configuration file. A little bit of work is required to uncomment the
1351 directives and define how usernames and passwords are checked, but
1352 there is now a framework to start from.
1353
765b530f
PH
1354PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1355 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1356 without this. I don't know how relevant this is to other LDAP libraries.
1357
4e167a8c
PH
1358PH/02 Add the verb name to the "unknown ACL verb" error.
1359
4608d683
PH
1360PH/03 Magnus Holmgren's patch for filter_prepend_home.
1361
b8dc3e4a
PH
1362PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1363
5418e93b
PH
1364PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1365 directory not expanded when it should be if an expanded home directory
1366 was set for the address (which is overridden by the transport).
1367
b4a9bda2
PH
1368PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1369 libradius.
1370
45b91596
PH
1371PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1372 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1373 because it is too late at that time, and has no effect.
1374
5547e2c5
PH
1375PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1376 security issue with \' (bugzilla #107). I could not use the
1377 PQescapeStringConn() function, because it needs a PGconn value as one of
1378 its arguments.
1379
dbcef0ea
PH
1380PH/08 When testing addresses using -bt, indicate those final addresses that
1381 are duplicates that would not cause an additional delivery. At least one
1382 person was confused, thinking that -bt output corresponded to deliveries.
1383 (Suppressing duplicates isn't a good idea as you lose the information
1384 about possibly different redirections that led to the duplicates.)
1385
25257489
PH
1386PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1387 systems where poll() doesn't work, in particular OS X.
1388
c816d124
PH
1389PH/10 Added more information to debugging output for retry time not reached.
1390
a9ccd69a
PH
1391PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1392 operations in malware.c.
1393
75fa1910
PH
1394PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1395 signatures.
1396
a7d7aa58
PH
1397PH/13 If write_rejectlog was set false when logging was sent to syslog with
1398 syslog_duplication set false, log lines that would normally be written
1399 both the the main log and to the reject log were not written to syslog at
1400 all.
1401
42119b09
PH
1402PH/14 In the default configuration, change the use of "message" in ACL warn
1403 statements to "add_header".
1404
41609df5
PH
1405PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1406 not followed by a command (e.g. "seen endif").
1407
a5bd321b
PH
1408PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1409 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1410 latter.
1411
e85a7ad5 1412PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1413 so that it is now:
1414
e85a7ad5
PH
1415 ${if or { \
1416 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1417 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1418 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1419 }{no}{yes}}
1420
e85a7ad5
PH
1421 The Auto-Submitted: and various List- headers are standardised, whereas I
1422 don't think Precedence: ever was.
5dff5817 1423
d8fe1c03
PH
1424PH/18 Refactored debugging code in route_finduser() to show more information,
1425 in particular, the error code if getpwnam() issues one.
1426
16282d2b
PH
1427PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1428 This is apparently needed in addition to the PH/07 change above to avoid
1429 any possible encoding problems.
1430
35d40a98
PH
1431PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1432 but not after initializing Perl.
1433
034d99ab
PH
1434PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1435 output them only if debugging. By default they are written stderr,
1436 apparently, which is not desirable.
1437
6ec97b1b
PH
1438PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1439 queries.
1440
e22ca4ac
JJ
1441JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1442 --not options
1443
1444JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1445
33d73e3b
PH
1446PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1447 authenticated or an ident call has been made. Suppress the default
1448 values for $authenticated_id and $authenticated_sender (but permit -oMai
1449 and -oMas) when testing with -bh.
1450
9ecb03f3
PH
1451PH/24 Re-jigged the order of the tests in the default configuration so that the
1452 tests for valid domains and recipients precede the DNS black list and CSA
1453 tests, on the grounds that those ones are more expensive.
1454
084efe8d
PH
1455PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1456 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1457 This bug exists in every version of Exim that I still have, right back to
1458 0.12.
1459
366fc9f0
PH
1460PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1461 However, an attempt to turn on case-sensitivity in a regex key by
1462 including (?-i) didn't work because the subject string was already
1463 lowercased, and the effects were non-intuitive. It turns out that a
1464 one-line patch can be used to allow (?-i) to work as expected.
1465
c59f5781 1466
c887c79e
TF
1467Exim version 4.62
1468-----------------
1469
1470TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1471 other effects) broke the use of negated acl sub-conditions.
1472
1cce3af8
PH
1473PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1474 patch).
1475
afb3eaaf
PH
1476PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1477 "Deny" causes Exim to reject the incoming connection with a 554 error.
1478 Unfortunately, if there is a major crisis, such as a disk failure,
1479 tcp-wrappers gives "deny", whereas what one would like would be some
1480 kind of temporary error. A kludge has been added to help with this.
1481 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1482 554 error is used if errno is still zero or contains ENOENT (which occurs
1483 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1484 451 error is used.
1485
e173618b
PH
1486PH/03 Add -lutil to the default FreeBSD LIBS setting.
1487
dd16e114
PH
1488PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1489 errors. Otherwise a message that provokes a temporary error (when other
1490 messages do not) can cause a whole host to time out.
1491
f7fd3850
PH
1492PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1493 addresses were routed directly to files or pipes from a redirect router.
1494 File deliveries just didn't batch; pipe deliveries might have suffered
1495 odd errors.
1496
d87df92c
PH
1497PH/06 A failure to get a lock for a hints database would erroneously always say
1498 "Failed to get write lock", even when it was really a read lock.
1499
7e9f683d
PH
1500PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1501 of 0600. This has been changed to use the value of the lockfile_mode
1502 option (which defaults to 0600).
1503
bfad5236
PH
1504PH/08 Applied small patch from the Sieve maintainer.
1505
01c490df
PH
1506PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1507 folder from quota calculations, a direct delivery into this folder messed
1508 up the contents of the maildirsize file. This was because the regex was
1509 used only to exclude .Trash (or whatever) when the size of the mailbox
1510 was calculated. There was no check that a delivery was happening into an
1511 excluded directory. This bug has been fixed by ignoring all quota
1512 processing for deliveries into excluded directories.
1513
d6629cdc
PH
1514PH/10 Added the maildirfolder_create_regex option to appendfile.
1515
1cce3af8 1516
214e2000
PH
1517Exim version 4.61
1518-----------------
1519
1520PH/01 The code for finding all the local interface addresses on a FreeBSD
1521 system running IPv6 was broken. This may well have applied to all BSD
1522 systems, as well as to others that have similar system calls. The broken
1523 code found IPv4 interfaces correctly, but gave incorrect values for the
1524 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1525 that it would not match correctly against @[] and not recognize the IPv6
1526 addresses as local.
1527
f9daeae0
PH
1528PH/02 The ipliteral router was not recognizing addresses of the form user@
1529 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1530
7e66e54d
PH
1531PH/03 Added disable_ipv6.
1532
c8ea1597
PH
1533PH/04 Changed $reply_address to use the raw form of the headers instead of the
1534 decoded form, because it is most often used to construct To: headers
1535 lines in autoreplies, and the decoded form may well be syntactically
1536 invalid. However, $reply_address has leading white space removed, and all
1537 newlines turned into spaces so that the autoreply transport does not
1538 grumble.
1539
911f6fde
PH
1540PH/05 If group was specified without a user on a router, and no group or user
1541 was specified on a transport, the group from the router was ignored.
1542
47ca6d6c
PH
1543PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1544 for visible compile-time settings that can be used to change these
1545 numbers, for those that want even more. Backwards compatibility with old
1546 spool files has been maintained. However, going back to a previous Exim
1547 release will lost any variables that are in spool files.
1548
ed0e9820
PH
1549PH/07 Two small changes when running in the test harness: increase delay when
1550 passing a TCP/IP connection to a new process, in case the original
1551 process has to generate a bounce, and remove special handling of
1552 127.0.0.2 (sic), which is no longer necessary.
1553
eff37e47
PH
1554PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1555 be the same on different OS.
1556
1921d2ea
PH
1557PH/09 Moved a debug statement in filter processing to avoid a race problem when
1558 testing.
1559
b3f69ca8
JJ
1560JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1561 whether --show-vars was specified or not
1562
1563JJ/02 exipick: Added support for new ACL variable spool format introduced
1564 in 4.61-PH/06
1565
424a1c63
PH
1566PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1567 syntactically invalid From: or Reply-to: line, and a filter used this to
1568 generate an autoreply, and therefore failed to obtain an address for the
1569 autoreply, Exim could try to deliver to a non-existent relative file
1570 name, causing unrelated and misleading errors. What now happens is that
1571 it logs this as a hard delivery error, but does not attempt to create a
1572 bounce message.
1573
7a100415
PH
1574PH/11 The exinext utility has a -C option for testing purposes, but although
1575 the given file was scanned by exinext itself; it wasn't being passed on
1576 when Exim was called.
1577
19b9dc85
PH
1578PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1579 an end-of-file indication when reading a command response.
1580
309bd837
PH
1581PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1582 compiled. In many other places in Exim, IPv6 addresses are always
1583 recognized, so I have changed this. It also means that IPv4 domain
1584 literals of the form [IPV4:n.n.n.n] are now always recognized.
1585
59e82a2a
PH
1586PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1587 used if the router is not running as root, for example, when verifying at
1588 ACL time, or when using -bh. The debugging output from this situation was
1589 non-existent - all you got was a failure to exec. I have made two
1590 changes:
1591
1592 (a) Failures to set uid/gid, the current directory, or a process leader
1593 in a subprocess such as that created by queryprogram now generate
1594 suitable debugging ouput when -d is set.
1595
1596 (b) The queryprogram router detects when it is not running as root,
1597 outputs suitable debugging information if -d is set, and then runs
1598 the subprocess without attempting to change uid/gid.
1599
9edc04ce
PH
1600PH/15 Minor change to Makefile for building test_host (undocumented testing
1601 feature).
1602
1349e1e5
PH
1603PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1604 additional section of a DNS packet that returns MX or SRV records.
1605 Instead, it always explicitly searches for A/AAAA records. This avoids
1606 major problems that occur when a DNS server includes only records of one
1607 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1608 fixed another bug: if SRV records were looked up and the corresponding
1609 address records were *not* found in the additional section, the port
1610 values from the SRV records were lost.
1611
ea49d0e1
PH
1612PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1613 using the correct key (the original address) when searching the retry
1614 rules in order to find which one to use for generating the retry hint.
1615
064a94c9
PH
1616PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1617 adding the default one. Similarly, if it contains a Reply-To: header, the
1618 errors_reply_to option, if set, is not used.
1619
727071f8
PH
1620PH/19 When calculating a retry time, Exim used to measure the "time since
1621 failure" by looking at the "first failed" field in the retry record. Now
1622 it does not use this if it is later than than the arrival time of the
1623 message. Instead it uses the arrival time. This makes for better
1624 behaviour in cases where some deliveries succeed, thus re-setting the
1625 "first failed" field. An example is a quota failure for a huge message
1626 when small messages continue to be delivered. Without this change, the
1627 "time since failure" will always be short, possible causing more frequent
1628 delivery attempts for the huge message than are intended.
dd16e114 1629 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1630
f78eb7c6
PH
1631PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1632 $1, $2, $3) because the numerical variables can be reset during some
1633 expansion items (e.g. "match"), thereby losing the authentication data.
1634
21c28500
PH
1635PH/21 Make -bV show the size of off_t variables so that the test suite can
1636 decide whether to run tests for quotas > 2G.
1637
1638PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1639 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1640 filecount value is greater than 2G or if a quota value is greater than 2G
1641 on a system where the size of off_t is not greater than 4, a panic error
1642 is given.
1643
1688f43b
PH
1644PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1645 never match. The debug and -bh output now contains an explicit error
1646 message indicating a malformed IPv4 address or mask.
1647
1648PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1649 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1650 PH/23 above applies.
1651
9675b384
PH
1652PH/25 Do not write to syslog when running in the test harness. The only
1653 occasion when this arises is a failure to open the main or panic logs
1654 (for which there is an explicit test).
1655
6a3f1455
PH
1656PH/26 Added the /no_tell option to "control=freeze".
1657
dac79d3e
PH
1658PH/27 If a host name lookup failed very early in a connection, for example, if
1659 the IP address matched host_lookup and the reverse lookup yielded a name
1660 that did not have a forward lookup, an error message of the form "no IP
1661 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1662 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1663
5977a0b3
PH
1664PH/28 An enabling patch from MH: add new function child_open_exim2() which
1665 allows the sender and the authenticated sender to be set when
1666 submitting a message from within Exim. Since child_open_exim() is
1667 documented for local_scan(), the new function should be too.
1668
c91535f3
PH
1669PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1670 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1671 results in an empty string is now treated as unset.
1672
0d46a8c8
PH
1673PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1674
278c6e6c
PH
1675PH/31 Added sender_verify_fail logging option.
1676
2cbb4081
PH
1677PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1678 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1679 tidied the source and removed it altogether.
1680
3eef829e
PH
1681PH/33 When a queue run was abandoned because the load average was too high, a
1682 log line was always written; now it is written only if the queue_run log
1683 selector is set. In addition, the log line for abandonment now contains
1684 information about the queue run such as the pid. This is always present
1685 in "start" and "stop" lines but was omitted from the "abandon" line.
1686
1ab95fa6
PH
1687PH/34 Omit spaces between a header name and the colon in the error message that
1688 is given when verify = headers_syntax fails (if there are lots of them,
1689 the message gets confusing).
1690
230205fc
PH
1691PH/35 Change the default for dns_check_names_pattern to allow slashes within
1692 names, as there are now some PTR records that contain slashes. This check
1693 is only to protect against broken name servers that fall over on strange
1694 characters, so the fact that it applies to all lookups doesn't matter.
1695
75e0e026
PH
1696PH/36 Now that the new test suite is complete, we can remove some of the
1697 special code in Exim that was needed for the old test suite. For example,
1698 sorting DNS records because real resolvers return them in an arbitrary
1699 order. The new test suite's fake resolver always returns records in the
1700 same order.
1701
1702PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1703 bounces) except when queue_only is set, to avoid logging races between
1704 the different processes.
1705
145396a6
PH
1706PH/38 Panic-die if .include specifies a non-absolute path.
1707
3cd34f13
PH
1708PH/39 A tweak to the "H" retry rule from its user.
1709
11121d3d
JJ
1710JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1711 a label. They prevented compilation on older perls.
1712
1713JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1714 a warning to be raised on newish perls.
1715
1716JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1717 on queue. Changes to match documented behaviour of showing count of
1718 messages matching specified criteria.
1719
8def5aaf
PH
1720PH/40 Changed the default ident timeout from 30s to 5s.
1721
929ba01c
PH
1722PH/41 Added support for the use of login_cap features, on those BSD systems
1723 that have them, for controlling the resources used by pipe deliveries.
1724
2632889e
PH
1725PH/42 The content-scanning code uses fopen() to create files in which to put
1726 message data. Previously it was not paying any attention to the mode of
1727 the files. Exim runs with umask(0) because the rest of the code creates
1728 files with open(), and sets the required mode explicitly. Thus, these
1729 files were ending up world-writeable. This was not a big issue, because,
1730 being within the spool directory, they were not world-accessible. I have
1731 created a function called modefopen, which takes an additional mode
1732 argument. It sets umask(777), creates the file, chmods it to the required
1733 mode, then resets the umask. All the relevant calls to fopen() in the
1734 content scanning code have been changed to use this function.
1735
944a9c55
PH
1736PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1737 to 24 hours. This avoids potential overflow problems when processing G
1738 and H retry rules. I suspect nobody ever tinkers with this value.
1739
4a23603b
PH
1740PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1741
4730f942
PH
1742PH/45 When the plaintext authenticator is running as a client, the server's
1743 challenges are checked to ensure they are valid base64 strings. By
1744 default, the authentication attempt is cancelled if an invalid string is
1745 received. Setting client_ignore_invalid_base64 true ignores these errors.
1746 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1747 they are received. Thus, the responses can be made to depend on the
1748 challenges. If an invalid string is ignored, an empty string is placed in
1749 the variable.
1750
30dba1e6
PH
1751PH/46 Messages that are created by the autoreply transport now contains a
1752 References: header, in accordance with RFCs 2822 and 3834.
1753
382afc6b
PH
1754PH/47 Added authenticated_sender_force to the smtp transport.
1755
a86229cf
PH
1756PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1757
50c99ba6
PH
1758PH/49 Installed latest patch from the Sieve maintainer.
1759
d35e429d
PH
1760PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1761 was also set, the appendfile transport was unnecessarily scanning a
1762 directory of message files (e.g. for maildir delivery) to find the count
1763 of files (along with the size), even though it did not need this
1764 information. It now does the scan only if it needs to find either the
1765 size of the count of files.
1766
f90d018c
PH
1767PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1768
75def545
PH
1769PH/52 Two bugs concerned with error handling when the smtp transport is
1770 used in LMTP mode:
1771
1772 (i) Exim was not creating retry information for temporary errors given
1773 for individual recipients after the DATA command when the smtp transport
1774 was used in LMTP mode. This meant that they could be retried too
1775 frequently, and not timed out correctly.
1776
1777 (ii) Exim was setting the flag that allows error details to be returned
1778 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1779 recipients that were returned after the DATA command.
1780
1781PH/53 This is related to PH/52, but is more general: for any failing address,
1782 when detailed error information was permitted to be returned to the
1783 sender, but the error was temporary, then after the final timeout, only
1784 "retry timeout exceeded" was returned. Now it returns the full error as
1785 well as "retry timeout exceeded".
1786
c46782ef
PH
1787PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1788 do this, and (what is worse) MTAs that accept it.
1789
71fafd95
PH
1790PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1791 will now be deprecated.
1792
2c5db4fd
PH
1793PH/56 New os.c-cygwin from the Cygwin maintainer.
1794
9cf6b11a
JJ
1795JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1796 formats (previously only available in exim formats via -bpr, -bpru,
1797 and -bpra. Now also available in native and exiqgrep formats)
1798
1799JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1800 with very large, slow to parse queues
1801
1802JJ/08 exipick: added ! as generic prefix to negate any criteria format
1803
1804JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1805
898d150f
PH
1806PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1807 responses to authentication challenges, though it was showing the
1808 challenges; (ii) I've removed the CR characters from the debug output for
1809 SMTP output lines.
1810
46218253
PH
1811PH/58 Allow for the insertion of a newline as well as a space when a string
1812 is turned into more than one encoded-word during RFC 2047 encoding. The
1813 Sieve code now uses this.
1814
e97957bc
PH
1815PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1816 data_4xx, lost_connection, tls_required.
1817
81e509d7
PH
1818PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1819 message was being sent as an SMTP response.
1820
3d240ff7
PH
1821PH/61 Add -l and -k options to exicyclog.
1822
b37c4101
PH
1823PH/62 When verifying, if an address was redirected to one new address, so that
1824 verification continued, and the new address failed or deferred after
1825 having set something in $address_data, the value of $address_data was not
1826 passed back to the ACL. This was different to the case when no
1827 redirection occurred. The value is now passed back in both cases.
1828
79378e0f
PH
1829PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1830 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1831 use login_cap.h, so on its own it isn't the distinguishing feature. The
1832 new name refers directly to the setclassresources() function.
1833
e49c7bb4
PH
1834PH/65 Added configuration files for NetBSD3.
1835
d114ec46
PH
1836PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1837
f3d7df6c
PH
1838PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1839 is preferred over IPv4.
1840
715ab376
PH
1841PH/68 The bounce_return_message and bounce_return_body options were not being
1842 honoured for bounces generated during the reception of non-SMTP messages.
1843 In particular, this applied to messages rejected by the ACL. This bug has
1844 been fixed. However, if bounce_return_message is true and bounce_return_
1845 body is false, the headers that are returned for a non-SMTP message
1846 include only those that have been read before the error was detected.
1847 (In the case of an ACL rejection, they have all been read.)
1848
6b31b150
PH
1849PH/69 The HTML version of the specification is now built in a directory called
1850 spec_html instead of spec.html, because the latter looks like a path with
1851 a MIME-type, and this confuses some software.
1852
1853PH/70 Catch two compiler warnings in sieve.c.
1854
d515a917
PH
1855PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1856 function verify_get_ident() calls ip_connect() to connect a socket, but
1857 if the "connect()" function timed out, ip_connect() used to close the
1858 socket. However, verify_get_ident() also closes the socket later, and in
1859 between Exim writes to the log, which may get opened at this point. When
1860 the socket was closed in ip_connect(), the log could get the same file
1861 descriptor number as the socket. This naturally causes chaos. The fix is
1862 not to close the socket in ip_connect(); the socket should be closed by
1863 the function that creates it. There was only one place in the code where
1864 this was missing, in the iplookup router, which I don't think anybody now
1865 uses, but I've fixed it anyway.
1866
9b8fadde
PH
1867PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1868 well as to direct DNS lookups. Otherwise the handling of names in host
1869 lists is inconsistent and therefore confusing.
1870
214e2000 1871
5de37277
PH
1872Exim version 4.60
1873-----------------
1874
cc38ddbf
PH
1875PH/01 Two changes to the default runtime configuration:
1876
1877 (1) Move the checks for relay_from_hosts and authenticated clients from
1878 after to before the (commented out) DNS black list checks.
1879
1880 (2) Add control=submission to the relay_from_hosts and authenticated
1881 clients checks, on the grounds that messages accepted by these
1882 statements are most likely to be submissions.
5de37277 1883
72fdd6ae
PH
1884PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1885
1886 (1) Generate an error if the third argument for the ${prvs expansion is
1887 not a single digit.
1888
1889 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1890 string.
1891
1892 (3) Reset the variables that are obtained from the first argument of
1893 ${prvscheck and used in the second argument before leaving the code,
1894 because their memory is reclaimed, so using them afterwards may do
1895 silly things.
1896
1897 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1898 one (it's much easier than Tom thought :-).
1899
1900 (5) Because of (4), we can now allow for the use of $prvscheck_result
1901 inside the third argument.
cb9328de 1902
cb741023
PH
1903PH/03 For some reason, the default setting of PATH when running a command from
1904 a pipe transport was just "/usr/bin". I have changed it to
1905 "/bin:/usr/bin".
1906
f174f16e
PH
1907PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1908 anything to be listed in the output from -bV.
b2f5a032 1909
c25242d7
PH
1910PH/05 When a filter generated an autoreply, the entire To: header line was
1911 quoted in the delivery log line, like this:
1912
1913 => >A.N.Other <ano@some.domain> <original@ddress> ...
1914
1915 This has been changed so that it extracts the operative address. There
1916 may be more than one such address. If so, they are comma-separated, like
1917 this:
1918
1919 => >ano@some.domain,ona@other.domain <original@ddress> ...
1920
82c19f95
PH
1921PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1922 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1923 not being looked up in the rDNS to get a host name, Exim was showing the
1924 IP address twice in Received: lines, even though the IP addresses were
1925 identical. For example:
1926
1927 Received: from [1.2.3.4] (helo=[1.2.3.4])
1928
1929 However, if the real host name was known, it was omitting the HELO data
1930 if it matched the actual IP address. This has been tidied up so that it
1931 doesn't show the same IP address twice.
1932
d7ffbc12
PH
1933PH/07 When both +timestamp and +memory debugging was on, the value given by
1934 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1935 called by the debug printing, thereby overwriting the timestamp buffer.
1936 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1937
9f526266
PH
1938PH/08 When the original message was included in an autoreply transport, it
1939 always said "this is a copy of the message, including all the headers",
1940 even if body_only or headers_only was set. It now gives an appropriate
1941 message.
1942
87fcc8b9
PH
1943PH/09 Applied a patch from the Sieve maintainer which:
1944
1945 o fixes some comments
1946 o adds the (disabled) notify extension core
1947 o adds some debug output for the result of if/elsif tests
1948 o points to the current vacation draft in the documentation
1949 and documents the missing references header update
1950
1951 and most important:
1952
1953 o fixes a bug in processing the envelope test (when testing
1954 multiple envelope elements, the last element determinted the
1955 result)
1956
456682f5
PH
1957PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1958 Electronic Mail") by including:
1959
1960 Auto-submitted: auto-generated
1961
1962 in the messages that it generates (bounce messages and others, such as
1963 warnings). In the case of bounce messages for non-SMTP mesages, there was
1964 also a typo: it was using "Auto_submitted" (underscore instead of
1965 hyphen). Since every message generated by Exim is necessarily in response
1966 to another message, thes have all been changed to:
1967
1968 Auto-Submitted: auto-replied
1969
1970 in accordance with these statements in the RFC:
1971
1972 The auto-replied keyword:
1973
1974 - SHOULD be used on messages sent in direct response to another
1975 message by an automatic process,
1976
1977 - MUST NOT be used on manually-generated messages,
1978
1979 - MAY be used on Delivery Status Notifications (DSNs) and Message
1980 Disposition Notifications (MDNs),
1981
1982 - MUST NOT be used on messages generated by automatic or periodic
1983 processes, except for messages which are automatic responses to
1984 other messages.
1985
3e46c1aa
PH
1986PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1987 to the default Received: header definition.
456682f5 1988
49826d12
PH
1989PH/12 Added log selector acl_warn_skipped (default on).
1990
eba0c039
PH
1991PH/13 After a successful wildlsearch lookup, discard the values of numeric
1992 variables because (a) they are in the wrong storage pool and (b) even if
1993 they were copied, it wouldn't work properly because of the caching.
1994
a0d6ba8a
PH
1995PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1996 checking when decoding. Apparently there are clients that generate
1997 overlong encoded strings. Why am I not surprised?
1998
f0917727
PH
1999PH/15 If the first argument of "${if match_address" was not empty, but did not
2000 contain an "@" character, Exim crashed. Now it writes a panic log message
2001 and treats the condition as false.
2002
096fee00
PH
2003PH/16 In autoreply, treat an empty string for "once" the same as unset.
2004
024bd3c2
PH
2005PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2006 extension "envelope-auth". The code is finished and in agreement with
2007 other implementations, but there is no documentation so far and in fact,
2008 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2009 not changing the active code.
2010
2011 Print executed "if" and "elsif" statements when debugging is used. This
2012 helps a great deal to understand what a filter does.
2013
2014 Document more things not specified clearly in RFC3028. I had all this
2015 sorted out, when out of a sudden new issues came to my mind. Oops."
2016
df199fec
PH
2017PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2018 (Bugzilla #53).
2019
d27f1df3
PH
2020PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2021 canonical form (as documented). However, after a host name lookup from
2022 the IP address, check_host() was doing a simple string comparison with
2023 addresses acquired from the DNS when checking that the found name did
2024 have the original IP as one of its addresses. Since any found IPv6
2025 addresses are likely to be in abbreviated form, the comparison could
2026 fail. Luckily, there already exists a function for doing the comparison
2027 by converting both addresses to binary, so now that is used instead of
2028 the text comparison.
2029
96776534
PH
2030PH/20 There was another similar case to PH/19, when a complete host name was
2031 given in a host list; looking up its IP address could give an abbreviated
2032 form, whereas the current host's name might or might not be abbreviated.
2033 The same fix has been applied.
2034
5de37277 2035
9a799bc0
PH
2036Exim version 4.54
2037-----------------
2038
2039PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2040 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2041 It now does.
2042
99a4b039
PH
2043PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2044 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2045
2046PH/03 Typo: missing ".o" in src/pcre/Makefile.
2047
4b233853
PH
2048PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2049 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2050 Also, for "Auto-Submitted", treat anything other than "no" as
2051 non-personal, in accordance with RFC 3834. (Previously it treated
2052 anything starting "auto-" as non-personal.)
2053
8857ccfd
PH
2054TF/01 The control=submission/name=... option had a problem with syntax
2055 errors if the name included a slash character. The /name= option
2056 now slurps the rest of the string, so it can include any characters
2057 but it must come last in the list of options (after /sender_retain
2058 or /domain=).
2059
433a2980
PH
2060PH/05 Some modifications to the interface to the fake nameserver for the new
2061 testing suite.
2062
3e46c1aa 2063
9a799bc0 2064
e3a311ba
TK
2065Exim version 4.53
2066-----------------
2067
2068TK/01 Added the "success_on_redirect" address verification option. See
2069 NewStuff for rationale and an example.
2070
13b685f9
PH
2071PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2072
395ff96d
PH
2073PH/02 Patch to exigrep to allow it to work on syslog lines.
2074
5b68f6e4
PH
2075PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2076 fread() to skip over the body file's header line, because in Cygwin the
2077 header line is locked and is inaccessible.
2078
1ab52c69
PH
2079PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2080 co-exist for some time) to make it clear that it is the Exim ID that is
2081 referenced, not the Message-ID: header line.
2082
b07e6aa3
PH
2083PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2084 string_format() function, because snprintf() does not exist on all
2085 operating systems.
2086
254e032f
PH
2087PH/06 The use of forbid_filter_existstest now also locks out the use of the
2088 ${stat: expansion item.
2089
3af76a81
PH
2090PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2091 protocol synchronization error", to keep the pedants happy.
2092
2548ba04
PH
2093PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2094 well as for IRIX systems, when gcc is being used. See the host.c source
2095 file for comments.
2096
b6c6011d
PH
2097PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2098
cf39cf57
PH
2099PH/10 Named domain lists were not working if used in a queue_smtp_domains
2100 setting.
2101
f1513293
PH
2102PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2103 transport and to the smtp transport in LMTP mode.
2104
727549a4
PH
2105TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2106
af46795e
PH
2107PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2108 run a filter in a subprocess. This could lead to confusion in subsequent
2109 lookups in the parent process. There should also be a search_tidyup() at
2110 the end of the subprocess.
2111
d7b47fd0
PH
2112PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2113 only if the host matched helo_try_verify_hosts, which caused the
2114 verification to occur when the EHLO/HELO command was issued. The ACL just
2115 tested the remembered result. Now, if a previous verification attempt has
2116 not happened, "verify = helo" does it there and then.
2117
ee744174
JJ
2118JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2119
b582ab87
PH
2120TK/03 Fix log output including CR from clamd.
2121
41a13e0a
PH
2122PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2123 exist provoked a memory error which could cause a segfault.
2124
f625cc5a
PH
2125PH/15 Installed PCRE 6.2
2126
2127PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2128
21f7af35
PH
2129PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2130 of the problem. Specifically, suggested +O2 rather than +O1 for the
2131 HP-UX compiler.
2132
31480e42
PH
2133PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2134
2d280592
PH
2135PH/20 If a delivery was routed to a non-standard port by means of an SRV
2136 record, the port was not correctly logged when the outgoing_port log
2137 selector was set (it logged the transort's default port).
2138
7cd1141b
PH
2139PH/21 Added support for host-specific ports to manualroute, queryprogram,
2140 fallback_hosts, and "hosts" in the smtp transport.
2141
2142PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2143 host errors such as "Connection refused".
2144
750af86e
PH
2145PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2146 authentication with radiusclient 0.4.9:
2147
2148 - Error returned from rc_read_config was caught wrongly
2149 - Username/password not passed on to radius server due to wrong length.
2150
2151 The presumption is that some radiusclient API changes for 4.51/PH/17
2152 were not taken care of correctly. The code is still untested by me (my
2153 Linux distribution still has 0.3.2 of radiusclient), but it was
2154 contributed by a Radius user.
2155
2156PH/24 When doing a callout, the value of $domain wasn't set correctly when
2157 expanding the "port" option of the smtp transport.
2158
4304270b
TK
2159TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2160 while reading a MIME header. Thanks to Tom Hughes for a patch.
2161
750af86e
PH
2162PH/24 Include config.h inside local_scan.h so that configuration settings are
2163 available.
2164
64ffc24f
PH
2165PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2166 that in an ACL for RCPT (for example), you can examine exactly what was
2167 received.
2168
5dd9625b
PH
2169PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2170 commands, but it was not correctly comparing the address with the actual
2171 client host address. Thus, it would show the EHLO address in Received:
2172 header lines when this was not necessary.
2173
5591031b
PH
2174PH/27 Added the % operator to ${eval:}.
2175
ba18e66a
PH
2176PH/28 Exim tries to create and chdir to its spool directory when it starts;
2177 it should be ignoring failures (because with -C, for example, it has lost
2178 privilege). It wasn't ignoring creation failures other than "already
2179 exists".
2180
9cec981f
PH
2181PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2182 -bV or -d is used.
2183
aa2b5c79
PH
2184PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2185 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2186 too many continuations, the temporary file was not being removed, and the
2187 return code was incorrect.
aa2b5c79 2188
48a53b7f
PH
2189PH/31 Missing "BOOL" in function definition in filtertest.c.
2190
1c59d63b
PH
2191PH/32 Applied Sieve patches from the maintainer.
2192
671012da
TK
2193TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2194
1509d3a8
PH
2195PH/33 Added "verify = not_blind".
2196
2197PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2198 Local/Makefile (with some defaults set). These are used in built scripts
2199 such as exicyclog, but they have never been used in the exim_install
2200 script (though there are many overriding facilities there). I have
2201 arranged that the exim_install script now takes note of these two
2202 settings.
2203
2204PH/35 Installed configuration files for Dragonfly.
2205
2fe1a124
PH
2206PH/36 When a locally submitted message by a trusted user did not contain a
2207 From: header, and the sender address was obtained from -f or from an SMTP
2208 MAIL command, and the trusted user did not use -F to supply a sender
2209 name, $originator_name was incorrectly used when constructing a From:
2210 header. Furthermore, $originator_name was used for submission mode
2211 messages from external hosts without From: headers in a similar way,
2212 which is clearly wrong.
2213
8800895a
PH
2214PH/37 Added control=suppress_local_fixups.
2215
ccfdb010
PH
2216PH/38 When log_selector = +received_sender was set, and the addition of the
2217 sender made the log line's construction buffer exactly full, or one byte
2218 less than full, an overflow happened when the terminating "\n" was
2219 subsequently added.
2220
1130bfb0
PH
2221PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2222 when the result of a list match is failure because a DNS lookup failed.
2223
ebcb507f
PH
2224PH/40 RM_COMMAND is now used in the building process.
2225
c35e155c
PH
2226PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2227 the "build-* directories that it finds.
2228
95d1f782
PH
2229PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2230 address in a domain literal was a prefix of an interface address.
2231
fd6de02e
PH
2232PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2233 when verifying a sender address, unless rewrite_headers is false.
2234
58de37c5
PH
2235PH/44 Wrote a long comment about why errors_to addresses are verified as
2236 recipients, not senders.
2237
261cf466
TF
2238TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2239 the ratelimit ACL was added.
2240
3ee512ff
PH
2241PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2242
e08c430f
PH
2243PH/46 Added extra information about PostgreSQL errors to the error string.
2244
bef5a11f
PH
2245PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2246 avoiding the need to install special zones in a real server. This is
2247 backwards compatible; if it can't find the fake resolver, it drops back.
2248 Thus, both old and new test suites can be run.
2249
7546de58
TF
2250TF/02 Added util/ratelimit.pl
2251
e5d5a95f
TF
2252TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2253 clock is set back in time.
2254
2e88a017
TF
2255TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2256 Candler <B.Candler@pobox.com>.
2257
a5f65aa4
TF
2258TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2259 OK for addresses that are the result of redirections.
2260
e7726cbf
PH
2261PH/48 A number of further additions for the benefit of the new test suite,
2262 including a fake gethostbyname() that interfaces to the fake DNS resolver
2263 (see PH/47 above).
2264
a7fdad5b
TF
2265TF/06 The fix for widen_domains has also been applied to qualify_single and
2266 search_parents which are the other dnslookup options that can cause
2267 header rewrites.
2268
6af56900
PH
2269PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2270 type ("H").
2271
0925ede6
PH
2272PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2273
66afa403
TF
2274TF/07 Exim produced the error message "an SRV record indicated no SMTP
2275 service" if it encountered an MX record with an empty target hostname.
2276 The message is now "an MX or SRV record indicated no SMTP service".
2277
0154e85a
TF
2278TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2279 if the DNS of the sending site is misconfigured. This is quite a
2280 common situation. This change restores the behaviour of treating a
2281 helo verification defer as a failure.
2282
16f12c76
PH
2283PH/51 If self=fail was set on a router, the bounce message did not include the
2284 actual error message.
2285
bbe902f0 2286
e5a9dba6
PH
2287Exim version 4.52
2288-----------------
2289
2290TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2291
22c3b60b
PH
2292PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2293 command itself ended in error, the underlying message about the transport
2294 filter timeout was being overwritten with the pipe command error. Now the
2295 underlying error message should be appended to the second error message.
2296
06a9b4b5
PH
2297TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2298
c1ac6996
PH
2299PH/02 Reduce the amount of output that "make" produces by default. Full output
2300 can still be requested.
2301
9c7a242c
PH
2302PH/03 The warning log line about a condition test deferring for a "warn" verb
2303 was being output only once per connection, rather than after each
2304 occurrence (because it was using the same function as for successful
2305 "warn" verbs). This seems wrong, so I have changed it.
2306
87ba3f5f
PH
2307TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2308 it should not have, which might have caused a crash in the right
2309 circumstances, but probably never did.
2310
2311PH/04 Installed a modified version of Tony Finch's patch to make submission
2312 mode fix the return path as well as the Sender: header line, and to
2313 add a /name= option so that you can make the user's friendly name appear
2314 in the header line.
2315
29aba418
TF
2316TF/03 Added the control = fakedefer ACL modifier.
2317
fe0dab11
TF
2318TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2319 Mark Lowes for thorough testing.
870f6ba8 2320
11d337a4
TK
2321TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2322
2323TK/03 Merged latest SRS patch from Miles Wilton.
2324
415c8f3b
PH
2325PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2326 with the definition in sysexits.h (which is #included earlier).
2327 Fortunately, Exim does not actually use EX_OK. The code used to try to
2328 preserve the sysexits.h value, by assumimg that macro definitions were
2329 scanned for macro replacements. I have been disabused of this notion,
2330 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2331
958541e9
PH
2332PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2333 in the smtp transport. When a block could not be written in a single
2334 write() function, the timeout was being re-applied to each part-write.
2335 This seems wrong - if the receiver was accepting one byte at a time it
2336 would take for ever. The timeout is now adjusted when this happens. It
2337 doesn't have to be particularly precise.
2338
c206415f
TK
2339TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2340 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2341
2a4be8f9
PH
2342PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2343 without a domain if the check to <postmaster@domain> fails.
2344
1cba11c5
SC
2345SC/01 Eximstats: added -xls and the ability to specify output files
2346 (patch written by Frank Heydlauf).
2347
2348SC/02 Eximstats: use FileHandles for outputing results.
2349
2350SC/03 Eximstats: allow any combination of xls, txt, and html output.
2351
2352SC/04 Eximstats: fixed display of large numbers with -nvr option
2353
2354SC/05 Eximstats: fixed merging of reports with empty tables.
2355
2356SC/06 Eximstats: added the -include_original_destination flag
2357
2358SC/07 Eximstats: removed tabs and trailing whitespace.
2359
1005d00e
TK
2360TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2361
2362TK/06 MBOX spool code: Add real "From " MBOX separator line
2363 so the .eml file is really in mbox format (even though
2364 most programs do not really care). Patch from Alex Miller.
2365
2366TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2367 The latter is generated from $received_to and is only set if the
2368 message has one envelope recipient. SA can use these headers,
2369 obviously out-of-the-box. Patch from Alex Miller.
2370
9b4768fa
PH
2371PH/08 The ${def test on a variable was returning false if the variable's
2372 value was "0", contrary to what the specification has always said!
2373 The result should be true unless the variable is empty.
2374
2375PH/09 The syntax error of a character other than { following "${if
2376 def:variable_name" (after optional whitespace) was not being diagnosed.
2377 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2378 accidental colon was present, for example, could give incorrect results.
2379
0d7eb84a
PH
2380PH/10 Tidied the code in a number of places where the st_size field of a stat()
2381 result is used (not including appendfile, where other changes are about
2382 to be made).
2383
2384PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2385 This involved changing a lot of size variables from int to off_t. It
2386 should work with maildirs and everything.
2387
40727bee
TK
2388TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2389 spamd dying while we are connected to it.
2390
554d2369
TF
2391TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2392 <jgh@wizmail.org>
2393
1f922db1
PH
2394PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2395 function for BDB 4.3.
2396
ef213c3b
PH
2397PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2398
8ac170f3
PH
2399PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2400 the sources for PCRE have been re-arranged and more files are now
2401 involved.
2402
b1c749bb
PH
2403PH/15 The code I had for printing potentially long long variables in PH/11
2404 above was not the best (it lost precision). The length of off_t variables
2405 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2406 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2407 to be "long long int" or "long int". This is needed for the internal
2408 formatting function string_vformat().
b1c749bb 2409
4aac9b49
PH
2410PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2411 the configuration file to be ":syslog", then the script "guesses" where
2412 the logs files are, rather than using the compiled in default. In our
2413 case the guess is not the same as the compiled default, so the script
2414 suddenly stopped working when I started to use syslog. The patch checks
2415 to see if log_file_path is "". If so, it attempts to read it from exim
2416 with no configuration file to get the compiled in version, before it
2417 falls back to the previous guessing code."
2418
294520c8
TK
2419TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2420 implementing BATV in an Exim configuration. See NewStuff for the gory
2421 details.
2422
5bd022fe
PH
2423PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2424 Makefile that are specific to HP-UX.
2425
90e9ce59
PH
2426PH/18 If the "use_postmaster" option was set for a recipient callout together
2427 with the "random" option, the postmaster address was used as the MAIL
2428 FROM address for the random test, but not for the subsequent recipient
2429 test. It is now used for both.
2430
5ea81592
PH
2431PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2432 patch removes a few documentation additions to RFC 3028, because the
2433 latest draft now contains them. It adds the new en;ascii-case comparator
2434 and a new error check for 8bit text in MIME parts. Comparator and
2435 require names are now matched exactly. I enabled the subaddress
2436 extension, but it is not well tested yet (read: it works for me)."
2437
c6c2dc1d
PH
2438PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2439 rework some of the code of TK/09 above to avoid the hardwired use of
2440 "%lld" and "long long". Replaced the call to snprintf() with a call to
2441 string_vformat().
2442
fffffe4c
PH
2443PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2444 records point to non-existent hosts", "retry timeout exceeded", and
2445 "retry time not reached for any host after a long failure period".
ca02eafb 2446
9a26b6b2
PH
2447PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2448 experimental DomainKeys support:
2449
2450 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2451 (2) On an error such as an illegally used "control", the wrong name for
2452 the control was given.
2453
2454 These problems did NOT occur unless DomainKeys support was compiled.
2455
4aee0225
PH
2456PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2457
32d668a5
PH
2458PH/24 Added ${if match_ip condition.
2459
8187c3f3
PH
2460PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2461 databases so that it will be absolutely obvious if a crash occurs in the
2462 DB library. This is a regular occurrence (often caused by mis-matched
2463 db.h files).
2464
ff790e47 2465PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2466 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2467 picked up on a user's system that detects such things. There doesn't seem
2468 to be a gcc warning option for this - only an attribute that has to be
2469 put on the function's prototype. It seems that in Fedora Core 4 they have
2470 set this on a number of new functions. No doubt there will be more in due
2471 course.
ff790e47 2472
5417f6d1
PH
2473PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2474 specify a transport. However, if an address that was verified by such a
2475 router was the subject of a callout, Exim crashed because it tried to
2476 read the rcpt_include_affixes from the non-existent transport. Now it
2477 just assumes that the setting of that option is false. This bug was
2478 introduced by 4.51/PH/31.
2479
59cf8544
PH
2480PH/28 Changed -d+all to exclude +memory, because that information is very
2481 rarely of interest, but it makes the output a lot bigger. People tend to
2482 do -d+all out of habit.
2483
e7ad8a65
PH
2484PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2485 code in os-type was giving problems when libc.so lives in lib64, like on
2486 x86_64 Fedora Core.
2487
ade42478
PH
2488PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2489 aren't the modern standard, and it seems that some systems' include files
2490 don't always have them. Exim was already checking for some of the newer
2491 ones like T_AAAA, and defining it itself. I've added checks for all the
2492 record types that Exim uses.
2493
182ad5cf
PH
2494PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2495 not automatically generating a new one, as it is supposed to. This
2496 prevented TLS from working. If the file did exist, but contained invalid
2497 data, a new version was generated, as expected. It was only the case of a
2498 non-existent file that was broken.
2499
b0d9fc80
TK
2500TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2501 with a change in libdomainkeys > 0.64.
2502
2503TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2504 from DNS. If the selector record carries the flag, it now has
2505 precedence over the domain-wide flag.
2506
2507TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2508
47c7a64a
PH
2509PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2510 the use of a port name that isn't defined in /etc/services) occurred, the
2511 message was deferred as in a normal delivery, and thus remained on the
2512 spool, instead of being failed because of the mua_wrapper setting. This
2513 is now fixed, and I tidied up some of the mua_wrapper messages at the
2514 same time.
2515
a388bce4
SC
2516SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2517 the messages in a hash of arrays rather than using individual hashes.
2518 This is a bit cleaner and results in dramatic memory savings, albeit
2519 at a slight CPU cost.
2520
2521SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2522 as requested by Marc Sherman.
2523
2524SC/10 Eximstats: added histograms for user specified patterns as requested
2525 by Marc Sherman.
2526
0793e4ed
SC
2527SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2528
c58b88df
PH
2529PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2530 fopen() in the content-scanning modules that did not already have it.
2531
e7ad8a65 2532
7982096b
PH
2533Exim version 4.51
2534-----------------
2535
1a46a8c5
PH
2536TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2537 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2538
2f079f46 2539TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2540
2541TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2542
2543PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2544 to test Sieve filters that use "vacation".
2545
2546PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2547 that changes the way the GnuTLS parameters are stored in the cache file.
2548 The new format can be generated externally. For backward compatibility,
2549 if the data in the cache doesn't make sense, Exim assumes it has read an
2550 old-format file, and it generates new data and writes a new file. This
2551 means that you can't go back to an older release without removing the
2552 file.
2553
2554PH/03 A redirect router that has both "unseen" and "one_time" set does not
2555 work if there are any delivery delays because "one_time" forces the
2556 parent to be marked "delivered", so its unseen clone is never tried
2557 again. For this reason, Exim now forbids the simultaneous setting of
2558 these two options.
2559
2560PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2561 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2562 entry if you want to know the details. The fix, however, neglected to
2563 consider the case when local delivery batching is involved. The test for
2564 "previously delivered" was not happening when checking to see if an
2565 address could be batched with a previous (undelivered) one; under
2566 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2567 address.
1a46a8c5
PH
2568
2569PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2570 in its include files, and this causes problems building Exim.
2571
2572PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2573 header_syntax) but Exim was just ignoring anything given after a slash.
2574 In particular, this caused confusion with an attempt to use "verify =
2575 reverse_host_lookup/defer_ok". An error is now given when options are
2576 supplied for verify items that do not have them. (Maybe reverse_host_
2577 lookup should have a defer_ok option, but that's a different point.)
2578
2579PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2580 defined by RFC 821) to 2048, because there were problems with some AUTH
2581 commands, and RFC 1869 says the size should be increased for extended
2582 SMTP commands that take arguments.
2583
2584PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2585 Finch).
2586
2587PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2588 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2589
49c2d5ea
PH
2590PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2591 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2592 whatever). Otherwise the password may appear in the log. Following change
2593 PH/42 below, there is no longer a chance of it appearing in a bounce
2594 message.
49c2d5ea 2595
bf759a8b
PH
2596PH/11 Installed exipick version 20050225.0 from John Jetmore.
2597
83364d30
PH
2598PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2599 of its addresses was ever tried. (Bugzilla bug #2.)
2600
7999bbd7
PH
2601PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2602 the result incorrectly in the debug output. (It correctly added a newline
2603 to what was transported.)
2604
7dbf77c9
PH
2605TF/01 Added $received_time.
2606
74e0617f
PH
2607PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2608 commented out examples of how to interface to a virus scanner and to
2609 SpamAssassin. Also added commented examples of av_scanner and
2610 spamd_address settings.
2611
2f079f46
PH
2612PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2613 and controls are allowed in which ACLs. There were a couple of minor
2614 errors. Some of the entries in the conditions table (which is a table of
2615 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2616 negation of where the condition IS allowed.
2617
8c841523
PH
2618PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2619
7766a4f0
PH
2620PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2621 header file does not have a version number, so I've had to invent a new
2622 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2623 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2624 radiusclient), but it was contributed by a Radius user.
2625
8b417f2c
PH
2626PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2627 files or directories, for OpenSSL.
2628
901f42cb
PH
2629PH/19 When an Exim process that is running as root has to create an Exim log
2630 file, it does so in a subprocess that runs as exim:exim so as to get the
2631 ownership right at creation (otherwise, other Exim processes might see
2632 the file with the wrong ownership). There was no test for failure of this
2633 fork() call, which would lead to the process getting stuck as it waited
2634 for a non-existent subprocess. Forks do occasionally fail when resources
2635 run out. I reviewed all the other calls to fork(); they all seem to check
2636 for failure.
2637
f9b9210e
PH
2638PH/20 When checking for unexpected SMTP input at connect time (before writing
2639 the banner), Exim was not dealing correctly with a non-positive return
2640 from the read() function. If the client had disconnected by this time,
2641 the result was a log entry for a synchronization error with an empty
2642 string after "input=" when read() returned zero. If read() returned -1
2643 (an event I could not check), uninitialized data bytes were printed.
2644 There were reports of junk text (parts of files, etc) appearing after
2645 "input=".
2646
54cdb463
PH
2647PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2648
cf00dad6
PH
2649PH/22 Added support for macro redefinition, and (re)definition in between
2650 driver and ACL definitions.
2651
acb1b346
PH
2652PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2653 forgetting to use the resulting value; it was using the unexpanded value.
2654
c5ddb310
PH
2655PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2656 hadn't been configured. The fix is from Juergen Kreileder, who
2657 understands it better than I do:
2658
2659 "Here's what I see happening with three configured cyrus_sasl
2660 authenticators configured (plain, login, cram-md5):
2661
2662 On startup auth_cyrus_sasl_init() gets called for each of these.
2663 This means three calls to sasl_listmech() without a specified mech_list.
2664 => SASL tests which mechs of all available mechs actually work
2665 => three warnings about OTP not working
2666 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2667
2668 With the patch, sasl_listmech() also gets called three times. But now
2669 SASL's mech_list option is set to the server_mech specified in the the
2670 authenticator. Or in other words, the answer from sasl_listmech()
2671 gets limited to just the mech you're testing for (which is different
2672 for each call.)
2673 => the return list contains just 'plain' or 'login', 'cram-md5' or
2674 nothing depending on the value of ob->server_mech.
2675
2676 I've just tested the patch: Authentication still works fine,
2677 unavailable mechs specified in the exim configuration are still
2678 caught, and the auth.log warnings about OTP are gone."
2679
31619da6
PH
2680PH/25 When debugging is enabled, the contents of the command line are added
2681 to the debugging output, even when log_selector=+arguments is not
2682 specified.
2683
bebaf0fc
PH
2684PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2685 answer is "GNU", and only if the return is "GNU/something" is the answer
2686 "Linux".
2687
475fe28a
PH
2688PH/27 $acl_verify_message is now set immediately after the failure of a
2689 verification in an ACL, and so is available in subsequent modifiers. In
2690 particular, the message can be preserved by coding like this:
2691
2692 warn !verify = sender
2693 set acl_m0 = $acl_verify_message
2694
2695 Previously, $acl_verify_message was set only while expanding "message"
2696 and "log_message" when a very denied access.
2697
7e8bec7a
PH
2698PH/28 Modified OS/os.c-Linux with
2699
2700 -#ifndef OS_LOAD_AVERAGE
2701 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2702
2703 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2704 nomenclature these days.)
2705
e4a89c47
PH
2706PH/29 Installed patch from the Sieve maintainer that adds the options
2707 sieve_useraddress and sieve_subaddress to the redirect router.
2708
5ca2a9a1
PH
2709PH/30 In these circumstances:
2710 . Two addresses routed to the same list of hosts;
2711 . First host does not offer TLS;
2712 . First host accepts first address;
2713 . First host gives temporary error to second address;
2714 . Second host offers TLS and a TLS session is established;
2715 . Second host accepts second address.
2716 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2717 and peerdn, if requested) that were in fact used only for the second
2718 address.
7e8bec7a 2719
c688b954
PH
2720PH/31 When doing a callout as part of verifying an address, Exim was not paying
2721 attention to any local part prefix or suffix that was matched by the
2722 router that accepted the address. It now behaves in the same way as it
2723 does for delivery: the affixes are removed from the local part unless
2724 rcpt_include_affixes is set on the transport.
2725
fed77020
PH
2726PH/32 Add the sender address, as F=<...>, to the log line when logging a
2727 timeout during the DATA phase of an incoming message.
2728
7fe1560f
PH
2729PH/33 Sieve envelope tests were broken for match types other than :is. I have
2730 applied a patch sanctioned by the Sieve maintainer.
c688b954 2731
ebb6e6d5
PH
2732PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2733 the uid or gid is negative. A case of a negative gid caused this to be
2734 noticed. The fix allows for either to be negative.
2735
9c4e8f60
PH
2736PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2737 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2738 overlooked.
2739
2740PH/36 The change PH/12 above was broken. Fixed it.
2741
d7174846
PH
2742PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2743 the grounds that routing the same address twice would always produce the
2744 same answer. This might have been true once, but it is certainly no
2745 longer true now. Routing a child address may depend on the previous
2746 routing that produced that child. Some complicated redirection strategies
2747 went wrong when messages had multiple recipients, and made Exim's
2748 behaviour dependent on the order in which the addresses were given.
2749
2750 I have moved the duplicate checking until after the routing is complete.
2751 Exim scans the addresses that are assigned to local and remote
2752 transports, and removes any duplicates. This means that more work will be
2753 done, as duplicates will always all be routed, but duplicates are
2754 presumably rare, so I don't expect this is of any significance.
2755
2756 For deliveries to pipes, files, and autoreplies, the duplicate checking
2757 still happens during the routing process, since they are not going to be
2758 routed further.
2759
cfe75fc3
PH
2760PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2761 It corrects a timeout issue with spamd. This is Ian's comment: "The
2762 background is that sometimes spamd either never reads data from a
2763 connection it has accepted, or it never writes response data. The exiscan
2764 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2765 blindly assumes that writes won't block so it may never time out."
2766
be22d70e
PH
2767PH/39 Allow G after quota size as well as K and M.
2768
0612b098
PH
2769PH/40 The value set for $authenticated_id in an authenticator may not contain
2770 binary zeroes or newlines because the value is written to log lines and
2771 to spool files. There was no check on this. Now the value is run through
2772 the string_printing() function so that such characters are converted to
2773 printable escape sequences.
2774
2e0c1448
PH
2775PH/41 $message_linecount is a new variable that contains the total number of
2776 lines in the message. Compare $body_linecount, which is the count for the
2777 body only.
2778
447d236c
PH
2779PH/42 Exim no longer gives details of delivery errors for specific addresses in
2780 bounce and delay warning messages, except in certain special cases, which
2781 are as follows:
2782
2783 (a) An SMTP error message from a remote host;
2784 (b) A message specified in a :fail: redirection;
2785 (c) A message specified in a "fail" command in a system filter;
2786 (d) A message specified in a FAIL return from the queryprogram router;
2787 (e) A message specified by the cannot_route_message router option.
2788
2789 In these cases only, Exim does include the error details in bounce and
2790 warning messages. There are also a few cases where bland messages such
2791 as "unrouteable address" or "local delivery error" are given.
2792
d20976dc
PH
2793PH/43 $value is now also set for the "else" part of a ${run expansion.
2794
f656d135
PH
2795PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2796 being worked on, but at least Exim now implements the latest version to
2797 play with."
2798
2e2a30b4
PH
2799PH/45 In a pipe transport, although a timeout while waiting for the pipe
2800 process to complete was treated as a delivery failure, a timeout while
2801 writing the message to the pipe was logged, but erroneously treated as a
2802 successful delivery. Such timeouts include transport filter timeouts. For
2803 consistency with the overall process timeout, these timeouts are now
2804 treated as errors, giving rise to delivery failures by default. However,
2805 there is now a new Boolean option for the pipe transport called
2806 timeout_defer, which, if set TRUE, converts the failures into defers for
2807 both kinds of timeout. A transport filter timeout is now identified in
2808 the log output.
2809
9176e9f0
PH
2810PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2811 systems where "make" and "gmake" are different, calling "gmake" at top
2812 level broke things. I've arranged for the value of $(MAKE) to be passed
2813 from the Makefile to this script so that it can call the same version of
2814 "make".
2815
7982096b 2816
bbe902f0
PH
2817A note about Exim versions 4.44 and 4.50
2818----------------------------------------
2819
2820Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2821changes of various kinds. As a consequence, a big documentation update was
2822needed. This delayed the release for rather longer than seemed good, especially
2823in the light of a couple of (minor) security issues. Therefore, the changes
2824that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2825release. So 4.44 and 4.50 are in effect two different branches that both start
2826from 4.43.
2827
2828I have left the 4.50 change log unchanged; it contains all the changes since
28294.43. The change log for 4.44 is below; many of its items are identical to
2830those for 4.50. This seems to be the most sensible way to preserve the
2831historical information.
2832
2833
f7b63901 2834Exim version 4.50
495ae4b0
PH
2835-----------------
2836
5fe762f6
PH
2837 1. Minor wording change to the doc/README.SIEVE file.
2838
139059f6 2839 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2840 computation of the current number of files was incorrect.
495ae4b0 2841
7086e875
PH
2842 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2843 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2844 place.
2845
35af9f61
PH
2846 4. Give more explanation in the error message when the command for a transport
2847 filter fails to execute.
2848
b668c215
PH
2849 5. There are several places where Exim runs a non-Exim command in a
2850 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2851 was being done only for the command run by the queryprogram router. It is
2852 now done for all such subprocesses. The other cases are: ${run, transport
2853 filters, and the commands run by the lmtp and pipe transports.
2854
a494b1e1
PH
2855 6. Added CONFIGURE_GROUP build-time option.
2856
2857 7. Some older OS have a limit of 256 on the maximum number of file
2858 descriptors. Exim was using setrlimit() to set 1000 as a large value
2859 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2860 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2861
c5fcb476
PH
2862 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2863 was an oversight, and furthermore, ever since the addition of extra
2864 controls (e.g. 4.43/32), the checks on when to allow different forms of
2865 "control" were broken. There should now be diagnostics for all cases when a
2866 control that does not make sense is encountered.
2867
69358f02
PH
2868 9. Added the /retain_sender option to "control=submission".
2869
5be20824
PH
287010. $recipients is now available in the predata ACL (oversight).
2871
eb2c0248
PH
287211. Tidy the search cache before the fork to do a delivery from a message
2873 received from the command line. Otherwise the child will trigger a lookup
2874 failure and thereby defer the delivery if it tries to use (for example) a
2875 cached ldap connection that the parent has called unbind on.
2876
2a3eea10
PH
287712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2878 of $address_data from the recipient verification was clobbered by the
2879 sender verification.
2880
288113. The value of address_data from a sender verification is now available in
2882 $sender_address_data in subsequent conditions in the ACL statement.
2883
23c7ff99
PH
288414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2885
4deaf07d
PH
288615. Added a new option "connect=<time>" to callout options, to set a different
2887 connection timeout.
2888
926e1192
PH
288916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2890 was its contents. (It was OK if the option was not defined at all.)
2891
650edc6f
PH
289217. A "Completed" log line is now written for messages that are removed from
2893 the spool by the -Mrm option.
2894
2c7db3f5
PH
289518. New variables $sender_verify_failure and $recipient_verify_failure contain
2896 information about exactly what failed.
2897
3d235903
PH
289819. Added -dd to debug only the daemon process.
2899
7c7ad977
PH
290020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2901 handles timeouts, both on the server side and network timeouts. Renamed the
2902 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2903
981756db
PH
290421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2905 It is now set to "smtps".
2906
d4eb88df
PH
290722. $host_address is now set to the target address during the checking of
2908 ignore_target_hosts.
2909
291023. When checking ignore_target_hosts for an ipliteral router, no host name was
2911 being passed; this would have caused $sender_host_name to have been used if
2912 matching the list had actually called for a host name (not very likely,
2913 since this list is usually IP addresses). A host name is now passed as
2914 "[x.x.x.x]".
2915
7d468ab8
PH
291624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2917 code that specifies a non-restarting handler (typically sigaction() in
2918 modern systems) in an attempt to fix a rare and obscure crash bug.
2919
292025. Narrowed the window for a race in the daemon that could cause it to ignore
2921 SIGCHLD signals. This is not a major problem, because they are used only to
2922 wake it up if nothing else does.
2923
62c0818f
PH
292426. A malformed maildirsize file could cause Exim to calculate negative values
2925 for the mailbox size or file count. Odd effects could occur as a result.
2926 The maildirsize information is now recalculated if the size or filecount
2927 end up negative.
2928
26034054
PH
292927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2930 support for a long time. Removed HAVE_SYS_VFS_H.
2931
af66f652
PH
293228. Installed the latest version of exipick from John Jetmore.
2933
90af77f4
PH
293429. In an address list, if the pattern was not a regular expression, an empty
2935 subject address (from a bounce message) matched only if the pattern was an
2936 empty string. Non-empty patterns were not even tested. This was the wrong
2937 because it is perfectly reasonable to use an empty address as part of a
2938 database query. An empty address is now tested by patterns that are
2939 lookups. However, all the other forms of pattern expect the subject to
2940 contain a local part and a domain, and therefore, for them, an empty
2941 address still always fails if the pattern is not itself empty.
2942
d8ef3577
PH
294330. Exim went into a mad DNS loop when attempting to do a callout where the
2944 host was specified on an smtp transport, and looking it up yielded more
2945 than one IP address.
2946
5cb8cbc6
PH
294731. Re-factored the code for checking spool and log partition space into a
2948 function that finds that data and another that does the check. The former
2949 is then used to implement four new variables: $spool_space, $log_space,
2950 $spool_inodes, and $log_inodes.
2951
14702f5b
PH
295232. The RFC2047 encoding function was originally intended for short strings
2953 such as real names; it was not keeping to the 75-character limit for
2954 encoded words that the RFC imposes. It now respects the limit, and
2955 generates multiple encoded words if necessary. To be on the safe side, I
2956 have increased the buffer size for the ${rfc2047: expansion operator from
2957 1024 to 2048 bytes.
2958
063b1e99
PH
295933. It is now permitted to omit both strings after an "if" condition; if the
2960 condition is true, the result is "true". As before, when the second string
2961 is omitted, a false condition yields an empty string. This makes it less
2962 cumbersome to write custom ACL and router conditions.
2963
652e1b65
PH
296434. Failure to deliver a bounce message always caused it to be frozen, even if
2965 there was an errors_to setting on the router. The errors_to setting is now
2966 respected.
2967
6f0c9a4f
PH
296835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2969 canonical form (fully expanded) before being placed in
2970 $sender_host_address.
2971
33397d19
PH
297236. The table in the code that translates DNS record types into text (T_A to
2973 "A" for instance) was missing entries for NS and CNAME. It is just possible
2974 that this could have caused confusion if both these types were looked up
2975 for the same domain, because the text type is used as part of Exim's
2976 per-process caching. But the chance of anyone hitting this buglet seems
2977 very small.
2978
7bb56e1f
PH
297937. The dnsdb lookup has been extended in a number of ways.
2980
2981 (1) There is a new type, "zns", which walks up the domain tree until it
2982 finds some nameserver records. It should be used with care.
2983
ea3bc19b
PH
2984 (2) There is a new type, "mxh", which is like "mx" except that it returns
2985 just the host names, not the priorities.
2986
2987 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2988 looked up. The behaviour when one of the lookups defers can be
2989 controlled by a keyword.
7bb56e1f 2990
ea3bc19b 2991 (4) It is now possible to specify the separator character for use when
7bb56e1f 2992 multiple records are returned.
33397d19 2993
0bcb2a0e
PH
299438. The dnslists ACL condition has been extended: it is now possible to supply
2995 a list of IP addresses and/or domains to be looked up in a particular DNS
2996 domain.
2997
2ac0e484
PH
299839. Added log_selector=+queue_time_overall.
2999
4e1fde53
PH
300040. When running the queue in the test harness, wait just a tad after forking a
3001 delivery process, to get repeatability of debugging output.
3002
de365ded
PH
300341. Include certificate and key file names in error message when GnuTLS fails
3004 to set them up, because the GnuTLS error message doesn't include the name
3005 of the failing file when there is a problem reading it.
3006
f05da2e8
PH
300742. Allow both -bf and -bF in the same test run.
3008
d6453af2
PH
300943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
3010
f7b63901
PH
301144. The "Exiscan patch" is now merged into the mainline Exim source.
3012
301345. Sometimes the final signoff response after QUIT could fail to get
3014 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3015 < 0 before doing a fflush(). This bug looks as though it goes back to the
3016 introduction of TLS in release 3.20, but "sometimes" must have been rare
3017 because the tests only now provoked it.
3018
a444213a
PH
301946. Reset the locale to "C" after calling embedded Perl, in case it was changed
3020 (this can affect the format of dates).
3021
0ec020ea
PH
302247. exim_tidydb, when checking for the continued existence of a message for
3023 which it has found a message-specific retry record, was not finding
3024 messages that were in split spool directories. Consequently, it was
3025 deleting retry records that should have stayed in existence.
3026
b1206957
PH
302748. Steve fixed some bugs in eximstats.
3028
302949. The SPA authentication driver was not abandoning authentication and moving
3030 on to the next authenticator when an expansion was forced to fail,
3031 contradicting the general specification for all authenticators. Instead it
3032 was generating a temporary error. It now behaves as specified.
3033
26dd5a95
PH
303450. The default ordering of permitted cipher suites for GnuTLS was pessimal
3035 (the order specifies the preference for clients). The order is now AES256,
3036 AES128, 3DES, ARCFOUR128.
3037
343b2385
PH
303851. Small patch to Sieve code - explicitly set From: when generating an
3039 autoreply.
3040
1c5466b9
PH
304152. Exim crashed if a remote delivery caused a very long error message to be
3042 recorded - for instance if somebody sent an entire SpamAssassin report back
3043 as a large number of 550 error lines. This bug was coincidentally fixed by
3044 increasing the size of one of Exim's internal buffers (big_buffer) that
3045 happened as part of the Exiscan merge. However, to be on the safe side, I
3046 have made the code more robust (and fixed the comments that describe what
3047 is going on).
3048
55ee9ee3
PH
304953. Now that there can be additional text after "Completed" in log lines (if
3050 the queue_time_overall log selector is set), a one-byte patch to exigrep
3051 was needed to allow it to recognize "Completed" as not the last thing in
3052 the line.
3053
d38f8232
PH
305454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
3055 patch that reportedly fixes this has been added. I am not expert enough to
3056 create a test for it. This is what the patch creator wrote:
3057
3058 "I found a little strange behaviour of ldap code when working with
3059 Windows 2003 AD Domain, where users was placed in more than one
3060 Organization Units. When I tried to give exim partial DN, the exit code
3061 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
3062 But simultaneously result of request was absolutely normal ldap result,
3063 so I produce this patch..."
3064
3295e65b
PH
3065 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
3066 REFERENCE, so I have modified the code to exclude the patch when that macro
3067 is not defined.
3068
7102e136
PH
306955. Some experimental protocols are using DNS PTR records for new purposes. The
3070 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
3071 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3072 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 3073 CAN-2005-0021
7102e136 3074
3ca0ba97
PH
307556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
3076
c2bcbe20
PH
307757. Double the size of the debug message buffer (to 2048) so that more of very
3078 long debug lines gets shown.
3079
18ce445d
PH
308058. The exicyclog utility now does better if the number of log files to keep
3081 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
3082
1f5b4c3d
PH
308359. Two changes related to the smtp_active_hostname option:
3084
3085 (1) $smtp_active_hostname is now available as a variable.
3086 (2) The default for smtp_banner uses $smtp_active_hostname instead
3087 of $primary_hostname.
3088
b975ba52
PH
308960. The host_aton() function is supposed to be passed a string that is known
3090 to be a valid IP address. However, in the case of IPv6 addresses, it was
3091 not checking this. This is a hostage to fortune. Exim now panics and dies
3092 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
3093 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3094 components; fortuitously, this particular loophole had already been fixed
3095 by change 4.50/55 above.
3096
3097 If there are any other similar loopholes, the new check in host_aton()
3098 itself should stop them being exploited. The report I received stated that
3099 data on the command line could provoke the exploit when Exim was running as
3100 exim, but did not say which command line option was involved. All I could
3101 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3102 running as the user.
ea3a6f44 3103 CAN-2005-0021
85b87bc2
PH
3104
310561. There was a buffer overflow vulnerability in the SPA authentication code
3106 (which came originally from the Samba project). I have added a test to the
3107 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 3108 CAN-2005-0022
b975ba52 3109
17ffcae7
PH
311062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3111 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3112
d95f9fdb
PH
311363. The daemon start-up calls getloadavg() while still root for those OS that
3114 need the first call to be done as root, but it missed one case: when
3115 deliver_queue_load_max is set with deliver_drop_privilege. This is
3116 necessary for the benefit of the queue runner, because there is no re-exec
3117 when deliver_drop_privilege is set.
3118
86b8287f
PH
311964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3120 This has been fixed.
3121
60dc5e56
PH
312265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3123 was in use, was not putting the data itself into the right store pool;
3124 consequently, it could be overwritten for a subsequent message in the same
3125 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3126 the caching.)
3127
533244af
PH
312866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3129
a5a28604
PH
313067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3131 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3132 the function were treating the return as a boolean value, which happened to
3133 work because 0=false and not-0=true, but is not correct code.
3134
7e634d24
PH
313568. The host_aton() function was not handling scoped IPv6 addresses (those
3136 with, for example, "%eth0" on the end) correctly.
3137
3e11c26b
PH
313869. Fixed some compiler warnings in acl.c for the bitmaps specified with
3139 negated items (that is, ~something) in unsigned ints. Some compilers
3140 apparently mutter when there is no cast.
3141
6729cf78
PH
314270. If an address verification called from an ACL failed, and did not produce a
3143 user-specific message (i.e. there was only a "system" message), nothing was
3144 put in $acl_verify_message. In this situation, it now puts the system
3145 message there.
3146
00f00ca5
PH
314771. Change 4.23/11 added synchronization checking at the start of an SMTP
3148 session; change 4.31/43 added the unwanted input to the log line - except
3149 that it did not do this in the start of session case. It now does.
3150
c9bdd01c
PH
315172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3152 This is wrong and can cause the other end to generate a synchronization
3153 error if it is another Exim or anything else that does the synchronization
3154 check. A QUIT command is no longer sent after a timeout.
3155
d43194df
PH
315673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3157 during host lookups.
3158
fe5b5d0b
PH
315974. The defer_ok option of callout verification was not working if it was used
3160 when verifying addresses in header lines, that is, for this case:
3161
3162 verify = header_sender/callout=defer_ok
3163
76a2d7ba
PH
316475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3165 those file descriptors could be used for SMTP connections. If anything
3166 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3167 could be sent to the SMTP client, causing chaos. The daemon now opens
3168 stdin, stdout, and stderr to /dev/null when it puts itself into the
3169 background.
3170
317176. Arrange for output from Perl's "warn" command to be written to Exim's main
3172 log by default. The user can override this with suitable Perl magic.
3173
04f7d5b9
PH
317477. The use of log_message on a "discard" ACL verb, which is supposed to add to
3175 the log message when discard triggers, was not working for the DATA ACL or
3176 for the non-SMTP ACL.
3177
bc60667e
PH
317878. Error message wording change in sieve.c.
3179
bb6e88ff
PH
318079. If smtp_accept_max_per_host was set, the number of connections could be
3181 restricted to fewer than expected, because the daemon was trying to set up
3182 a new connection before checking whether the processes handling previous
3183 connections had finished. The check for completed processes is now done
3184 earlier. On busy systems, this bug wouldn't be noticed because something
3185 else would have woken the daemon, and it would have reaped the completed
3186 process earlier.
3187
1e70f85b
PH
318880. If a message was submitted locally by a user whose login name contained one
3189 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3190 It caused a spool format error. I have fixed the spool reading code. A
3191 related problem was that the "from" clause in the Received: line became
3192 illegal because of the space(s). It is now covered by ${quote_local_part.
3193
319481. Included the latest eximstats from Steve (adds average sizes to HTML Top
3195 tables).
3196
4e01f9d6
PH
319782. Updated OS/Makefile-AIX as per message from Mike Meredith.
3198
1ee1cef2
PH
319983. Patch from Sieve maintainer to fix unterminated string problem in
3200 "vacation" handling.
3201
6e2b4ccc
PH
320284. Some minor changes to the Linux configuration files to help with other
3203 OS variants using glibc.
3204
8e669ac1
PH
320585. One more patch for Sieve to update vacation handling to latest spec.
3206
495ae4b0 3207
bbe902f0
PH
3208----------------------------------------------------
3209See the note above about the 4.44 and 4.50 releases.
3210----------------------------------------------------
3211
3212
3213Exim version 4.44
3214-----------------
3215
3216 1. Change 4.43/35 introduced a bug that caused file counts to be
3217 incorrectly computed when quota_filecount was set in an appendfile
3218 transport
3219
3220 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3221 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3222 place.
3223
3224 3. Give more explanation in the error message when the command for a transport
3225 filter fails to execute.
3226
3227 4. There are several places where Exim runs a non-Exim command in a
3228 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3229 was being done only for the command run by the queryprogram router. It is
3230 now done for all such subprocesses. The other cases are: ${run, transport
3231 filters, and the commands run by the lmtp and pipe transports.
3232
3233 5. Some older OS have a limit of 256 on the maximum number of file
3234 descriptors. Exim was using setrlimit() to set 1000 as a large value
3235 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3236 systems. I've change it so that if it can't get 1000, it tries for 256.
3237
3238 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3239 was an oversight, and furthermore, ever since the addition of extra
3240 controls (e.g. 4.43/32), the checks on when to allow different forms of
3241 "control" were broken. There should now be diagnostics for all cases when a
3242 control that does not make sense is encountered.
3243
3244 7. $recipients is now available in the predata ACL (oversight).
3245
3246 8. Tidy the search cache before the fork to do a delivery from a message
3247 received from the command line. Otherwise the child will trigger a lookup
3248 failure and thereby defer the delivery if it tries to use (for example) a
3249 cached ldap connection that the parent has called unbind on.
3250
3251 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3252 of $address_data from the recipient verification was clobbered by the
3253 sender verification.
3254
325510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3256 was its contents. (It was OK if the option was not defined at all.)
3257
325811. A "Completed" log line is now written for messages that are removed from
3259 the spool by the -Mrm option.
3260
326112. $host_address is now set to the target address during the checking of
3262 ignore_target_hosts.
3263
326413. When checking ignore_target_hosts for an ipliteral router, no host name was
3265 being passed; this would have caused $sender_host_name to have been used if
3266 matching the list had actually called for a host name (not very likely,
3267 since this list is usually IP addresses). A host name is now passed as
3268 "[x.x.x.x]".
3269
327014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3271 code that specifies a non-restarting handler (typically sigaction() in
3272 modern systems) in an attempt to fix a rare and obscure crash bug.
3273
327415. Narrowed the window for a race in the daemon that could cause it to ignore
3275 SIGCHLD signals. This is not a major problem, because they are used only to
3276 wake it up if nothing else does.
3277
327816. A malformed maildirsize file could cause Exim to calculate negative values
3279 for the mailbox size or file count. Odd effects could occur as a result.
3280 The maildirsize information is now recalculated if the size or filecount
3281 end up negative.
3282
328317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3284 support for a long time. Removed HAVE_SYS_VFS_H.
3285
ea3a6f44 328618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3287
328819. Allow an empty sender to be matched against a lookup in an address list.
3289 Previously the only cases considered were a regular expression, or an
3290 empty pattern.
3291
329220. Exim went into a mad DNS lookup loop when doing a callout where the
3293 host was specified on the transport, if the DNS lookup yielded more than
3294 one IP address.
3295
ea3a6f44
NM
329621. The RFC2047 encoding function was originally intended for short strings
3297 such as real names; it was not keeping to the 75-character limit for
3298 encoded words that the RFC imposes. It now respects the limit, and
3299 generates multiple encoded words if necessary. To be on the safe side, I
3300 have increased the buffer size for the ${rfc2047: expansion operator from
3301 1024 to 2048 bytes.
bbe902f0 3302
ea3a6f44
NM
330322. Failure to deliver a bounce message always caused it to be frozen, even if
3304 there was an errors_to setting on the router. The errors_to setting is now
3305 respected.
bbe902f0
PH
3306
330723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3308 canonical form (fully expanded) before being placed in
3309 $sender_host_address.
3310
331124. Updated eximstats to version 1.33
3312
ea3a6f44
NM
331325. Include certificate and key file names in error message when GnuTLS fails
3314 to set them up, because the GnuTLS error message doesn't include the name
3315 of the failing file when there is a problem reading it.
bbe902f0
PH
3316
331726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3318 As per change 25.
bbe902f0 3319
ea3a6f44
NM
332027. Reset the locale to "C" after calling embedded Perl, in case it was changed
3321 (this can affect the format of dates).
bbe902f0 3322
ea3a6f44
NM
332328. exim_tidydb, when checking for the continued existence of a message for
3324 which it has found a message-specific retry record, was not finding
3325 messages that were in split spool directories. Consequently, it was
3326 deleting retry records that should have stayed in existence.
bbe902f0
PH
3327
332829. eximstats updated to version 1.35
3329 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3330 1.35 - bugfix such that pie charts by volume are generated correctly
3331
ea3a6f44
NM
333230. The SPA authentication driver was not abandoning authentication and moving
3333 on to the next authenticator when an expansion was forced to fail,
3334 contradicting the general specification for all authenticators. Instead it
3335 was generating a temporary error. It now behaves as specified.
bbe902f0 3336
ea3a6f44
NM
333731. The default ordering of permitted cipher suites for GnuTLS was pessimal
3338 (the order specifies the preference for clients). The order is now AES256,
3339 AES128, 3DES, ARCFOUR128.
bbe902f0 3340
ea3a6f44
NM
334131. Small patch to Sieve code - explicitly set From: when generating an
3342 autoreply.
bbe902f0 3343
ea3a6f44
NM
334432. Exim crashed if a remote delivery caused a very long error message to be
3345 recorded - for instance if somebody sent an entire SpamAssassin report back
3346 as a large number of 550 error lines. This bug was coincidentally fixed by
3347 increasing the size of one of Exim's internal buffers (big_buffer) that
3348 happened as part of the Exiscan merge. However, to be on the safe side, I
3349 have made the code more robust (and fixed the comments that describe what
3350 is going on).
bbe902f0 3351
ea3a6f44
NM
335233. Some experimental protocols are using DNS PTR records for new purposes. The
3353 keys for these records are domain names, not reversed IP addresses. The
3354 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3355 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3356 CAN-2005-0021
3357
ea3a6f44
NM
335834. The host_aton() function is supposed to be passed a string that is known
3359 to be a valid IP address. However, in the case of IPv6 addresses, it was
3360 not checking this. This is a hostage to fortune. Exim now panics and dies
3361 if the condition is not met. A case was found where this could be provoked
3362 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3363 components; fortuitously, this particular loophole had already been fixed
3364 by change 4.50/55 or 4.44/33 above.
3365
3366 If there are any other similar loopholes, the new check in host_aton()
3367 itself should stop them being exploited. The report I received stated that
3368 data on the command line could provoke the exploit when Exim was running as
3369 exim, but did not say which command line option was involved. All I could
3370 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3371 running as the user.
bbe902f0
PH
3372 CAN-2005-0021
3373
ea3a6f44
NM
337435. There was a buffer overflow vulnerability in the SPA authentication code
3375 (which came originally from the Samba project). I have added a test to the
3376 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3377 CAN-2005-0022
3378
ea3a6f44
NM
337936. The daemon start-up calls getloadavg() while still root for those OS that
3380 need the first call to be done as root, but it missed one case: when
3381 deliver_queue_load_max is set with deliver_drop_privilege. This is
3382 necessary for the benefit of the queue runner, because there is no re-exec
3383 when deliver_drop_privilege is set.
bbe902f0 3384
ea3a6f44
NM
338537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3386 was in use, was not putting the data itself into the right store pool;
3387 consequently, it could be overwritten for a subsequent message in the same
3388 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3389 the caching.)
bbe902f0 3390
ea3a6f44
NM
339138. Sometimes the final signoff response after QUIT could fail to get
3392 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3393 < 0 before doing a fflush(). This bug looks as though it goes back to the
3394 introduction of TLS in release 3.20, but "sometimes" must have been rare
3395 because the tests only now provoked it.
bbe902f0
PH
3396
3397
495ae4b0
PH
3398Exim version 4.43
3399-----------------
3400
3401 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3402 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3403 Now it returns an integer. A number of calls were still expecting a T/F
3404 return. Fortuitously, in all cases, the tests worked in OK situations,
3405 which is the norm. However, things would have gone wrong on any write
3406 failures on the smtp file descriptor. This function is used when sending
3407 messages over SMTP and also when doing verify callouts.
3408
3409 2. When Exim is called to do synchronous delivery of a locally submitted
3410 message (the -odf or -odi options), it no longer closes stderr before doing
3411 the delivery.
3412
3413 3. Implemented the mua_wrapper option.
3414
3415 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3416
3417 5. Implemented the func