Exim 4.77: documentation version updates.
[exim.git] / doc / doc-txt / ChangeLog
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1Change log file for Exim from version 4.21
2-------------------------------------------
3
867fcbf5
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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
5901f0ab
TF
88TF/07 Automatically extract Exim's version number from tags in the git
89 repository when doing development or release builds.
90
7f2a2a43
PP
91PP/02 Raise smtp_cmd_buffer_size to 16kB.
92 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 93
061b7ebd
PP
94PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
95 Heavily based on revision 40f9a89a from Simon Arlott's tree.
96 Bugzilla 97.
97
e12f8c32
PP
98PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
99
9e949f00 100PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
101 Bugzilla 1078. Patch from John Horne.
102
103PP/06 Stop make process more reliably on build failure.
104 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 105
555ae6af 106PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
107 Bugzilla 1089. Patch from Heiko Schlittermann.
108
109PP/08 Handle ${run} returning more data than OS pipe buffer size.
110 Bugzilla 1131. Patch from Holger WeiƟ.
555ae6af 111
6f7fe114
PP
112PP/09 Handle IPv6 addresses with SPF.
113 Bugzilla 860. Patch from Wolfgang Breyha.
114
c566dd90
PP
115PP/10 GnuTLS: support TLS 1.2 & 1.1.
116 Bugzilla 1156.
89f897c3
PP
117 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
118 Bugzilla 1095.
c566dd90 119
d6cc7c78 120PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
121 New compile-time build option, EXPAND_LISTMATCH_RHS.
122 New expansion conditions, "inlist", "inlisti".
123
0ca0cf52 124
10906672
PP
125Exim version 4.76
126-----------------
127
128PP/01 The new ldap_require_cert option would segfault if used. Fixed.
129
754a0503
PP
130PP/02 Harmonised TLS library version reporting; only show if debugging.
131 Layout now matches that introduced for other libraries in 4.74 PP/03.
132
c0c7b2da
PP
133PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
134
e97d1f08
PP
135PP/04 New "dns_use_edns0" global option.
136
084c1d8c
PP
137PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
138 Bugzilla 1098.
139
4e7ee012
PP
140PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
141 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 142
c8d52a00
PP
143TK/01 Updated PolarSSL code to 0.14.2.
144 Bugzilla 1097. Patch from Andreas Metzler.
145
54e7ce4a
PP
146PP/07 Catch divide-by-zero in ${eval:...}.
147 Fixes bugzilla 1102.
148
5ee6f336
PP
149PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
150 Bugzilla 1104.
151
c8d52a00 152TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
153 format-string attack -- SECURITY: remote arbitrary code execution.
154
155TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
156 time unintentionally subject to list matching rules, letting the header
157 cause arbitrary Exim lookups (of items which can occur in lists, *not*
158 arbitrary string expansion). This allowed for information disclosure.
159
160PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
161 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 162
10906672 163
aa097c4c
NM
164Exim version 4.75
165-----------------
166
4c9ef03a 167NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
168 Bugzilla 1073
169
7f3d9eff
TF
170TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
171 This fixes portability to compilers other than gcc, notably
172 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
173
159f52d2
TF
174TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
175 makefiles for portability to HP-UX and POSIX correctness.
176
0cc9542a
PP
177PP/01 Permit LOOKUP_foo enabling on the make command-line.
178 Also via indented variable definition in the Makefile.
179 (Debugging by Oliver Heesakkers).
180
f7274286
PP
181PP/02 Restore caching of spamd results with expanded spamd_address.
182 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
183
7b797365
PP
184PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
185 Improves build reliability. Fix from: Frank Elsner
186
caacae52
NM
187NM/02 Fix wide character breakage in the rfc2047 coding
188 Fixes bug 1064. Patch from Andrey N. Oktyabrski
189
09dcaba9
NM
190NM/03 Allow underscore in dnslist lookups
191 Fixes bug 1026. Patch from Graeme Fowler
192
bc19a55b
PP
193PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
194 Code patches from Adam Ciarcinski of NetBSD.
caacae52 195
bd4c9759
NM
196NM/04 Fixed exiqgrep to cope with mailq missing size issue
197 Fixes bug 943.
198
b72aab72
PP
199PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
200 is logged, to avoid truncation. Patch from John Horne.
201
2fe76745
PP
202PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
203 Patch from Jakob Hirsch.
204
76aa570c
PP
205PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
206 SQL string expansion failure details.
207 Patch from Andrey Oktyabrski.
208
f1e5fef5
PP
209PP/08 Bugzilla 486: implement %M datestamping in log filenames.
210 Patch from Simon Arlott.
211
4d805ee9
PP
212PP/09 New lookups functionality failed to compile on old gcc which rejects
213 extern declarations in function scope.
214 Patch from Oliver Fleischmann
215
cd59ab18
PP
216PP/10 Use sig_atomic_t for flags set from signal handlers.
217 Check getgroups() return and improve debugging.
218 Fixed developed for diagnosis in bug 927 (which turned out to be
219 a kernel bug).
220
332f5cf3
PP
221PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
222 Patch from Mark Zealey.
223
29cfeb94
PP
224PP/12 Bugzilla 1056: Improved spamd server selection.
225 Patch from Mark Zealey.
226
660242ad
PP
227PP/13 Bugzilla 1086: Deal with maildir quota file races.
228 Based on patch from Heiko Schlittermann.
229
bc4bc4c5
PP
230PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
231 Patch from Uwe Doering, sign-off by Michael Haardt.
232
2e64baa9
NM
233NM/05 Fix to spam.c to accommodate older gcc versions which dislike
234 variable declaration deep within a block. Bug and patch from
235 Dennis Davis.
236
bddd7526
PP
237PP/15 lookups-Makefile IRIX compatibilty coercion.
238
6bac1a9a
PP
239PP/16 Make DISABLE_DKIM build knob functional.
240
552193f0
NM
241NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
242 Patch by Simon Arlott
baeee2c1 243
1b587e48
TF
244TF/03 Fix valgrind.h portability to C89 compilers that do not support
245 variable argument macros. Our copy now differs from upstream.
246
aa097c4c 247
8c07b69f
TF
248Exim version 4.74
249-----------------
250
251TF/01 Failure to get a lock on a hints database can have serious
252 consequences so log it to the panic log.
253
c0ea85ab
TF
254TF/02 Log LMTP confirmation messages in the same way as SMTP,
255 controlled using the smtp_confirmation log selector.
256
0761d44e
TF
257TF/03 Include the error message when we fail to unlink a spool file.
258
0a349494
PP
259DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
260 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
261 for maintaining out-of-tree patches for some time.
262
263PP/01 Bugzilla 139: Documentation and portability issues.
264 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
265 Handle per-OS dynamic-module compilation flags.
266
fea24b2e
PP
267PP/02 Let /dev/null have normal permissions.
268 The 4.73 fixes were a little too stringent and complained about the
269 permissions on /dev/null. Exempt it from some checks.
270 Reported by Andreas M. Kirchwitz.
271
6545de78
PP
272PP/03 Report version information for many libraries, including
273 Exim version information for dynamically loaded libraries. Created
274 version.h, now support a version extension string for distributors
275 who patch heavily. Dynamic module ABI change.
276
1670ef10
PP
277PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
278 privilege escalation vulnerability whereby the Exim run-time user
279 can cause root to append content of the attacker's choosing to
280 arbitrary files.
281
c0886197
PP
282PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
283 (Wolfgang Breyha)
284
b7487bce
PP
285PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
286 If dropping privileges for untrusted macros, we disabled normal logging
287 on the basis that it would fail; for the Exim run-time user, this is not
288 the case, and it resulted in successful deliveries going unlogged.
289 Fixed. Reported by Andreas Metzler.
290
8c07b69f 291
97fd1e48 292Exim version 4.73
ed7f7860 293-----------------
97fd1e48
PP
294
295PP/01 Date: & Message-Id: revert to normally being appended to a message,
296 only prepend for the Resent-* case. Fixes regression introduced in
297 Exim 4.70 by NM/22 for Bugzilla 607.
298
6901c596
PP
299PP/02 Include check_rfc2047_length in configure.default because we're seeing
300 increasing numbers of administrators be bitten by this.
301
a8c8d6b5
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302JJ/01 Added DISABLE_DKIM and comment to src/EDITME
303
77bb000f
PP
304PP/03 Bugzilla 994: added openssl_options main configuration option.
305
a29e5231
PP
306PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
307
ec5a0394 308PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 309
55c75993
PP
310PP/06 Adjust NTLM authentication to handle SASL Initial Response.
311
453a6645 312PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
313 without a peer certificate, leading to a segfault because of an
314 assumption that peers always have certificates. Be a little more
453a6645
PP
315 paranoid. Problem reported by Martin Tscholak.
316
8544e77a
PP
317PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
318 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
319 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
320 CL also introduces -bmalware, various -d+acl logging additions and
321 more caution in buffer sizes.
8544e77a 322
83e029d5
PP
323PP/09 Implemented reverse_ip expansion operator.
324
ed7f7860
PP
325PP/10 Bugzilla 937: provide a "debug" ACL control.
326
7d9f747b
PP
327PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
328
4b2241d2
PP
329PP/12 Bugzilla 973: Implement --version.
330
10385c15
PP
331PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
332
dbc4b90d
PP
333PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
334
532be449
PP
335PP/15 Bugzilla 816: support multiple condition rules on Routers.
336
6a8de854 337PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
338 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
339 ignore trailing whitespace.
6a8de854 340
5dc43717
JJ
341JJ/02 prevent non-panic DKIM error from being sent to paniclog
342
343JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
344 "exim" to be used
55c75993 345
3346ab01
PP
346PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
347 Notification from Dr Andrew Aitchison.
348
491fab4c
PP
349PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
350 ExtendedDetectionInfo response format.
351 Notification from John Horne.
352
13eb9497
PP
353PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
354 compatible.
355
356PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
357 XSL and documented dependency on system catalogs, with examples of how
358 it normally works.
359
7f36d675
DW
360DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
361 access.
362
c1d94452
DW
363DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
364 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
365 configuration file which is writeable by the Exim user or group.
366
e2f5dc15
DW
367DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
368 of configuration files to cover files specified with the -C option if
369 they are going to be used with root privileges, not just the default
370 configuration file.
371
cd25e41d
DW
372DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
373 option (effectively making it always true).
374
261dc43e
DW
375DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
376 files to be used while preserving root privileges.
377
fa32850b
DW
378DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
379 that rogue child processes cannot use them.
380
79d4bc3d
PP
381PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
382 run-time user, instead of root.
383
43236f35 384PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
385 Exim run-time user without dropping privileges.
386
fb08281f
DW
387DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
388 result string, instead of calling string_vformat() twice with the same
389 arguments.
3346ab01 390
74935b98
DW
391DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
392 for other users. Others should always drop root privileges if they use
393 -C on the command line, even for a whitelisted configure file.
394
90b6341f
DW
395DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
396
57730b52
ML
397NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
398
66581d1e 399
465e92cf
JJ
400Exim version 4.72
401-----------------
402
453a6645
PP
403JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
404 $data_path, and $header_path variables; fixed documentation bugs and
405 typos
465e92cf 406
453a6645
PP
407JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
408 exipick to access non-standard spools, including the "frozen" queue
409 (Finput)
edae0343 410
9bd3e22c
NM
411NM/01 Bugzilla 965: Support mysql stored procedures.
412 Patch from Alain Williams
413
bb576ff7
NM
414NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
415
5a1a5845
NM
416NM/03 Bugzilla 955: Documentation fix for max_rcpts.
417 Patch from Andreas Metzler
418
981a9fad
NM
419NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
420 Patch from Kirill Miazine
421
7fc497ee
NM
422NM/05 Bugzilla 671: Added umask to procmail example.
423
1a41defa
JJ
424JJ/03 installed exipick 20100323.0, fixing doc bug
425
a466095c 426NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 427 directory. Notification and patch from Dan Rosenberg.
a466095c 428
94a6bd0b
NM
429TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
430
431TK/02 Improve log output when DKIM signing operation fails.
432
433MH/01 Treat the transport option dkim_domain as a colon separated
434 list, not as a single string, and sign the message with each element,
435 omitting multiple occurences of the same signer.
436
c1b141a8
NM
437NM/07 Null terminate DKIM strings, Null initialise DKIM variable
438 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 439
b26eacf1 440NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
441 Patch by Simon Arlott
442
179c5980 443PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 444 MBX locking. Notification from Dan Rosenberg.
179c5980 445
9bd3e22c 446
7c6d71af
NM
447Exim version 4.71
448-----------------
449
7d9f747b 450TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 451
f013fb92
NM
452NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
453
0eb8eedd
NM
454NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
455
663ee6d9
NM
456NM/03 Bugzilla 847: Enable DNSDB lookup by default.
457
177ebd9b
NM
458NM/04 Bugzilla 915: Flag broken perl installation during build.
459
7c6d71af 460
210f147e
NM
461Exim version 4.70
462-----------------
463
cdd3bb85 464TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 465 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
466
467TK/02 Write list of recipients to X-Envelope-Sender header when building
468 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 469 Hirsch).
cdd3bb85
TK
470
471TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
472 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 473 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
474
475TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
476 by Mark Daniel Reidel <mr@df.eu>.
477
210f147e
NM
478NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
479 When building exim an external PCRE library is now needed -
480 PCRE is a system library on the majority of modern systems.
481 See entry on PCRE_LIBS in EDITME file.
482
deafd5b3
NM
483NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
484 conversation. Added nologin parameter to request.
7d9f747b 485 Patch contributed by Kirill Miazine.
deafd5b3 486
089793a4
TF
487TF/01 Do not log submission mode rewrites if they do not change the address.
488
5f16ca82
TF
489TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
490
dae9d94e 491NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 492 log files in place. Contributed by Roberto Lima.
dae9d94e 493
7d9f747b 494NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 495
06864c44
TF
496TF/03 Bugzilla 615: When checking the local_parts router precondition
497 after a local_part_suffix or local_part_prefix option, Exim now
498 does not use the address's named list lookup cache, since this
499 contains cached lookups for the whole local part.
500
65a7d8c3 501NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 502 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 503
23510047 504TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 505
7d9f747b 506NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 507
7d8eec3a 508NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 509 Patch provided by Jan Srzednicki.
6c588e74 510
89dec7b6
TF
511TF/05 Leading white space used to be stripped from $spam_report which
512 wrecked the formatting. Now it is preserved.
5f28a6e8 513
a99de90c
TF
514TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
515 that they are available at delivery time.
516
e2803e40
TF
517TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
518
7199e1ee
TF
519TF/08 TLS error reporting now respects the incoming_interface and
520 incoming_port log selectors.
521
e276e04b
TF
522TF/09 Produce a more useful error message if an SMTP transport's hosts
523 setting expands to an empty string.
524
ce552449 525NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 526 Patch provided by Phil Pennock.
ce552449 527
e765a0f1 528NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 529 Patch provided by Richard Godbee.
e765a0f1 530
4f054c63 531NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 532 acl_smtp_notquit, added index entry.
4f054c63 533
7d9f747b
PP
534NM/09 Bugzilla 787: Potential buffer overflow in string_format.
535 Patch provided by Eugene Bujak.
24c929a2 536
7d9f747b
PP
537NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
538 accept(). Patch provided by Maxim Dounin.
cf73943b 539
b52bc06e 540NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 541 Patch provided by Phil Pennock.
b52bc06e 542
447de4b0
NM
543NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
544
4c69d561 545NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 546 Patch provided by Brad "anomie" Jorsch.
4c69d561 547
d5c39246 548NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 549 Patch provided by Dean Brooks.
9b989985 550
0b23848a
TK
551TK/05 Add native DKIM support (does not depend on external libraries).
552
8f3414a1 553NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 554 Patch provided by Graeme Fowler.
e2aacdfd 555
fb6f955d
NM
556NM/16 Bugzilla 851: Documentation example syntax fix.
557
558NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 559
7d9f747b
PP
560NM/18 Bugzilla 894: Fix issue with very long lines including comments in
561 lsearch.
dbb0bf41 562
7d9f747b
PP
563NM/19 Bugzilla 745: TLS version reporting.
564 Patch provided by Phil Pennock.
f3766eb5 565
7d9f747b
PP
566NM/20 Bugzilla 167: bool: condition support.
567 Patch provided by Phil Pennock.
36f12725 568
7d9f747b
PP
569NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
570 clients. Patch provided by Phil Pennock.
e6060e2c 571
7d9f747b
PP
572NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
573 Patch provided by Brad "anomie" Jorsch.
5eb690a1 574
7d9f747b
PP
575NM/23 Bugzilla 687: Fix misparses in eximstats.
576 Patch provided by Heiko Schlittermann.
d5c13d66 577
7d9f747b
PP
578NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
579 Patch provided by Heiko Schlittermann.
b2335c0b 580
7d9f747b 581NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 582 plus update to original patch.
f4cd9433 583
7d9f747b 584NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 585
7d9f747b
PP
586NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
587 Patch provided by David Brownlee.
8dc71ab3 588
7d9f747b 589NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 590
7d9f747b 591NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 592
7d9f747b 593NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 594
7d9f747b 595NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 596
17792b53 597NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 598 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 599
7d9f747b
PP
600NM/33 Bugzilla 898: Transport filter timeout fix.
601 Patch by Todd Rinaldo.
52383f8f 602
7d9f747b
PP
603NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
604 Patch by Serge Demonchaux.
5ca6d115 605
7d9f747b
PP
606NM/35 Bugzilla 39: Base64 decode bug fixes.
607 Patch by Jakob Hirsch.
baee9eee 608
7d9f747b 609NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 610
7d9f747b 611NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 612
7d9f747b 613NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 614
7d9f747b 615NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 616
deafd5b3 617
47db1125
NM
618Exim version 4.69
619-----------------
620
4b3504d0
TK
621TK/01 Add preliminary DKIM support. Currently requires a forked version of
622 ALT-N's libdkim that I have put here:
623 http://duncanthrax.net/exim-experimental/
624
625 Note to Michael Haardt: I had to rename some vars in sieve.c. They
626 were called 'true' and it seems that C99 defines that as a reserved
627 keyword to be used with 'bool' variable types. That means you could
628 not include C99-style headers which use bools without triggering
629 build errors in sieve.c.
630
81ea09ca
NM
631NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
632 as mailq or other aliases. Changed the --help handling significantly
633 to do whats expected. exim_usage() emits usage/help information.
634
f13cddcb
SC
635SC/01 Added the -bylocaldomain option to eximstats.
636
7d9f747b 637NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 638
7d9f747b 639NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 640
7d9f747b 641NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
642
643
eb4c0de6
PH
644Exim version 4.68
645-----------------
646
647PH/01 Another patch from the Sieve maintainer.
648
6a3bceb1
PH
649PH/02 When an IPv6 address is converted to a string for single-key lookup
650 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
651 dots are used instead of colons so that keys in lsearch files need not
652 contain colons. This was done some time before quoting was made available
653 in lsearch files. However, iplsearch files do require colons in IPv6 keys
654 (notated using the quote facility) so as to distinguish them from IPv4
655 keys. This meant that lookups for IP addresses in host lists did not work
656 for iplsearch lookups.
657
658 This has been fixed by arranging for IPv6 addresses to be expressed with
659 colons if the lookup type is iplsearch. This is not incompatible, because
660 previously such lookups could never work.
661
662 The situation is now rather anomolous, since one *can* have colons in
663 ordinary lsearch keys. However, making the change in all cases is
664 incompatible and would probably break a number of configurations.
665
2e30fa9d
TK
666TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
667 version.
668
0806a9c5
MH
669MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
670 conversion specification without a maximum field width, thereby enabling
671 a rogue spamd server to cause a buffer overflow. While nobody in their
672 right mind would setup Exim to query an untrusted spamd server, an
673 attacker that gains access to a server running spamd could potentially
674 exploit this vulnerability to run arbitrary code as the Exim user.
675
ae276964
TK
676TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
677 $primary_hostname instead of what libspf2 thinks the hosts name is.
678
0f2cbd1b
MH
679MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
680 a directory entry by the name of the lookup key. Previously, if a
681 symlink pointed to a non-existing file or a file in a directory that
682 Exim lacked permissions to read, a lookup for a key matching that
683 symlink would fail. Now it is enough that a matching directory entry
684 exists, symlink or not. (Bugzilla 503.)
685
2b85bce7
PH
686PH/03 The body_linecount and body_zerocount variables are now exported in the
687 local_scan API.
688
93655c46
PH
689PH/04 Added the $dnslist_matched variable.
690
6c512171
PH
691PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
692 This means they are set thereafter only if the connection becomes
693 encrypted.
694
695PH/06 Added the client_condition to authenticators so that some can be skipped
696 by clients under certain conditions.
697
aa6dc513
PH
698PH/07 The error message for a badly-placed control=no_multiline_responses left
699 "_responses" off the end of the name.
700
a96603a0
PH
701PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
702
8f240103
PH
703PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
704 (without spaces) instead of just copying the configuration text.
705
706PH/10 Added the /noupdate option to the ratelimit ACL condition.
707
d677b2f2
PH
708PH/11 Added $max_received_linelength.
709
d52120f2
PH
710PH/12 Added +ignore_defer and +include_defer to host lists.
711
64f2600a
PH
712PH/13 Installed PCRE version 7.2. This needed some changes because of the new
713 way in which PCRE > 7.0 is built.
714
8669f003
PH
715PH/14 Implemented queue_only_load_latch.
716
a4dc33a8
PH
717PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
718 MAIL command. The effect was to mangle the value on 64-bit systems.
719
d6a60c0f
PH
720PH/16 Another patch from the Sieve maintainer.
721
8f128379
PH
722PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
723
8932dffe
PH
724PH/18 If a system quota error occurred while trying to create the file for
725 a maildir delivery, the message "Mailbox is full" was not appended to the
726 bounce if the delivery eventually timed out. Change 4.67/27 below applied
727 only to a quota excession during the actual writing of the file.
d6a60c0f 728
ddea74fa 729PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
730 characters?) which causes problems in log lines. The DN values are now
731 passed through string_printing() before being added to log lines.
732
ddea74fa 733PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
734 and InterBase are left for another time.)
735
ddea74fa
PH
736PH/21 Added message_body_newlines option.
737
ce9f225c
PH
738PH/22 Guard against possible overflow in moan_check_errorcopy().
739
19897d52
PH
740PH/23 POSIX allows open() to be a macro; guard against that.
741
bc64a74d
PH
742PH/24 If the recipient of an error message contained an @ in the local part
743 (suitably quoted, of course), incorrect values were put in $domain and
744 $local_part during the evaluation of errors_copy.
745
eb4c0de6 746
b4ed4da0
PH
747Exim version 4.67
748-----------------
749
22ad45c9
MH
750MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
751 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
752 Jan Srzednicki.
753
b4ed4da0
PH
754PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
755 issue a MAIL command.
756
431b7361
PH
757PH/02 In an ACL statement such as
758
759 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
760
761 if a client was not listed at all, or was listed with a value other than
762 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
763 the condition was not true (as it should be), so access was not denied.
764 The bug was that the ! inversion was incorrectly passed on to the second
765 item. This has been fixed.
766
767PH/03 Added additional dnslists conditions == and =& which are different from
768 = and & when the dns lookup returns more than one IP address.
769
83da1223
PH
770PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
771 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
772
54fc8428
PH
773PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
774 FSYNC, which compiles an option called disable_fsync that allows for
775 bypassing fsync(). The documentation is heavily laced with warnings.
776
34c5e8dd
SC
777SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
778
bbe15da8
PH
779PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
780 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
781 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
782 including adding "make clean"; (3) Added -fPIC when compiling the test
783 dynamically loaded module, to get rid of a warning.
784
0e8a9471
MH
785MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
786 message fails, move_frozen_messages = true and ignore_bounce_errors_after
787 = 0s. The bug is otherwise harmless.
788
f0872424
PH
789PH/07 There was a bug in the dovecot authenticator such that the value of
790 $auth1 could be overwritten, and so not correctly preserved, after a
791 successful authentication. This usually meant that the value preserved by
792 the server_setid option was incorrect.
793
b01dd148
PH
794PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
795
6bf342e1
PH
796PH/09 Installed PCRE release 7.0.
797
273f34d0
PH
798PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
799 run for batched SMTP input. It is now run at the start of every message
800 in the batch. While fixing this I discovered that the process information
801 (output by running exiwhat) was not always getting set for -bs and -bS
802 input. This is fixed, and it now also says "batched" for BSMTP.
803
cf8b11a5
PH
804PH/11 Added control=no_pipelining.
805
41c7c167
PH
806PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
807 patch, slightly modified), and move the expansion of helo_data till after
808 the connection is made in the smtp transport (so it can use these
809 values).
810
9c57cbc0
PH
811PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
812
f3f065bb
PH
813PH/14 Added log_selector = +pid.
814
047bdd8c
PH
815PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
816
0ce9abe6
PH
817PH/16 Add ${if forany and ${if forall.
818
0e22dfd1
PH
819PH/17 Added dsn_from option to vary the From: line in DSNs.
820
4c590bd1
PH
821PH/18 Flush SMTP output before performing a callout, unless control =
822 no_callout_flush is set.
823
09945f1e
PH
824PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
825 was true (the default) a successful delivery failed to delete the retry
826 item, thus causing premature timeout of the address. The bug is now
827 fixed.
828
c51b8e75
PH
829PH/20 Added hosts_avoid_pipelining to the smtp transport.
830
e28326d8
PH
831PH/21 Long custom messages for fakedefer and fakereject are now split up
832 into multiline reponses in the same way that messages for "deny" and
833 other ACL rejections are.
834
75b1493f
PH
835PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
836 with slight modification.
837
7c5214ec
PH
838PH/23 Applied sieve patches from the maintainer "tracking the latest notify
839 draft, changing the syntax and factoring some duplicate code".
840
4311097e
PH
841PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
842 for deliveries of the second and subsequent messages over the same SMTP
843 connection.
844
29f89cad
PH
845PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
846 ${reduce, with only minor "tidies".
847
5e687460
SC
848SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
849
c3611384
PH
850PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
851 expansion side effects.
852
5a11a7b4
PH
853PH/27 When a message times out after an over-quota error from an Exim-imposed
854 quota, the bounce message says "mailbox is full". This message was not
855 being given when it was a system quota that was exceeded. It now should
856 be the same.
857
0e20aff9
MH
858MH/03 Made $recipients available in local_scan(). local_scan() already has
859 better access to the recipient list through recipients_list[], but
860 $recipients can be useful in postmaster-provided expansion strings.
861
ca86f471
PH
862PH/28 The $smtp_command and $smtp_command_argument variables were not correct
863 in the case of a MAIL command with additional options following the
864 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
865 were accidentally chopped off.
866
a14e5636
PH
867PH/29 SMTP synchronization checks are implemented when a command is read -
868 there is a check that no more input is waiting when there shouldn't be
869 any. However, for some commands, a delay in an ACL can mean that it is
870 some time before the response is written. In this time, more input might
871 arrive, invalidly. So now there are extra checks after an ACL has run for
872 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
873 pipelining has not been advertised.
874
ec95d1a6
PH
875PH/30 MH's patch to allow iscntrl() characters to be list separators.
876
42855d71
PH
877PH/31 Unlike :fail:, a custom message specified with :defer: was not being
878 returned in the SMTP response when smtp_return_error_details was false.
879 This has been fixed.
880
57c2c631
PH
881PH/32 Change the Dovecot authenticator to use read() and write() on the socket
882 instead of the C I/O that was originally supplied, because problems were
883 reported on Solaris.
884
58c01c94
PH
885PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
886 Exim which did not show up earlier: it was assuming that a call to
887 SSL_CTX_set_info_callback() might give an error value. In fact, there is
888 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
889 was a macro that became an assignment, so it seemed to work. This has
890 changed to a proper function call with a void return, hence the compile
891 error. Exim's code has been fixed.
892
dee5a20a
PH
893PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
894 cpus.
895
d2ee6114
PH
896PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
897
b2d5182b
PH
898PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
899
79749a79
PH
900PH/37 If a message is not accepted after it has had an id assigned (e.g.
901 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
902 "Completed" line in the log. When some messages of this type were
903 selected by exigrep, they were listed as "not completed". Others were
904 picked up by some special patterns. I have improved the selection
905 criteria to be more general.
79749a79 906
c456d9bb
PH
907PH/38 The host_find_failed option in the manualroute router can now be set
908 to "ignore", to completely ignore a host whose IP address cannot be
909 found. If all hosts are ignored, the behaviour is controlled by the new
910 host_all_ignored option.
911
cd9868ec
PH
912PH/39 In a list of hosts for manualroute, if one item (either because of multi-
913 homing or because of multiple MX records with /mx) generated more than
914 one IP address, and the following item turned out to be the local host,
915 all the secondary addresses of the first item were incorrectly removed
916 from the list, along with the local host and any following hosts (which
917 is what is supposed to happen).
918
ebeaf996
PH
919PH/40 When Exim receives a message, it writes the login name, uid, and gid of
920 whoever called Exim into the -H file. In the case of the daemon it was
921 behaving confusingly. When first started, it used values for whoever
922 started the daemon, but after a SIGHUP it used the Exim user (because it
923 calls itself on a restart). I have changed the code so that it now always
924 uses the Exim user.
925
2679d413
PH
926PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
927 message are rejected with the same error (e.g. no authentication or bad
928 sender address), and a DATA command is nevertheless sent (as can happen
929 with PIPELINING or a stupid MUA), the error message that was given to the
930 RCPT commands is included in the rejection of the DATA command. This is
931 intended to be helpful for MUAs that show only the final error to their
932 users.
933
84024b72
PH
934PH/42 Another patch from the Sieve maintainer.
935
8005d38e
SC
936SC/02 Eximstats - Differentiate between permanent and temporary rejects.
937 Eximstats - Fixed some broken HTML links and added missing column headers
938 (Jez Hancock).
939 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
940 columns for Rejects, Temp Rejects, Ham, and Spam rows.
941
3298c6c6
SC
942SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
943
a43a27c5
PH
944PH/43 Yet another patch from the Sieve maintainer.
945
58eb016e 946PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
947 the response to the final '.' that terminates a message, but only in the
948 case where the client has not sent further data following the '.'
949 (unfortunately, this is allowed). However, in many cases there won't be
950 any further data because there won't be any more messages to send. A call
951 to select() can be used: if it shows that the input is "ready", there is
952 either input waiting, or the socket has been closed. An attempt to read
953 the next input character can distinguish the two cases. Previously, Exim
58eb016e 954 would have sent an OK response which the client would never have see.
563b63fa
PH
955 This could lead to message repetition. This fix should cure that, at
956 least in a lot of common cases.
58eb016e 957
b43a74ea
PH
958PH/45 Do not advertise STARTTLS in response to HELP unless it would be
959 advertised in response to EHLO.
960
b4ed4da0 961
5dd1517f
PH
962Exim version 4.66
963-----------------
964
965PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
966 fixed by 4.65/MH/01 (is this a record?) are fixed:
967
968 (i) An empty string was always treated as zero by the numeric comparison
969 operators. This behaviour has been restored.
970
971 (ii) It is documented that the numeric comparison operators always treat
972 their arguments as decimal numbers. This was broken in that numbers
973 starting with 0 were being interpreted as octal.
974
975 While fixing these problems I realized that there was another issue that
976 hadn't been noticed. Values of message_size_limit (both the global option
977 and the transport option) were treated as octal if they started with 0.
978 The documentation was vague. These values are now always treated as
979 decimal, and I will make that clear in the documentation.
980
981
93cfa765
TK
982Exim version 4.65
983-----------------
984
985TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
986 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
987 versions. (#438)
988
d6066548
MH
989MH/01 Don't check that the operands of numeric comparison operators are
990 integers when their expansion is in "skipping" mode (fixes bug
991 introduced by 4.64-PH/07).
992
4362ff0d
PH
993PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
994 child addresses, Exim now panics and dies. Previously, because the count
995 is held in a short int, deliveries were likely to be lost. As such a
996 large number of recipients for a single message is ridiculous
997 (performance will be very, very poor), I have chosen to impose a limit
998 rather than extend the field.
999
93cfa765 1000
944e9e9c
TF
1001Exim version 4.64
1002-----------------
aa41d2de 1003
21d74bd9
TK
1004TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
1005 leftover -K file (the existence of which was triggered by #402).
1006 While we were at it, introduced process PID as part of the -K
1007 filename. This should rule out race conditions when creating
1008 these files.
1009
1010TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
1011 processing considerably. Previous code took too long for large mails,
1012 triggering a timeout which in turn triggers #401.
1013
1014TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
1015 in the DK code in transports.c. sendfile() is not really portable,
1016 hence the _LINUX specificness.
944e9e9c
TF
1017
1018TF/01 In the add_headers option to the mail command in an Exim filter,
1019 there was a bug that Exim would claim a syntax error in any
1020 header after the first one which had an odd number of characters
1021 in the field name.
1022
2b1c6e3a
PH
1023PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
1024 callout verification, Exim cached a "reject" for the entire domain. This
1025 is correct for most verifications, but it is not correct for a recipient
1026 verification with use_sender or use_postmaster set, because in that case
1027 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
1028 case of MAIL FROM:<> rejection from other early rejections (e.g.
1029 rejection of HELO). When verifying a recipient using a non-null MAIL
1030 address, the cache is ignored if it shows MAIL FROM:<> rejection.
1031 Whatever the result of the callout, the value of the domain cache is
1032 left unchanged (for any other kind of callout, getting as far as trying
1033 RCPT means that the domain itself is ok).
1034
1f872c80
PH
1035PH/02 Tidied a number of unused variable and signed/unsigned warnings that
1036 gcc 4.1.1 threw up.
1037
1038PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1039 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1040 session, the daemon ignores ECONNECT errors and logs others; it now
1041 ignores EPIPE as well.
1042
d203e649
PH
1043PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1044 (quoted-printable decoding).
1045
cc2ed8f7 1046PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 1047 later the small subsequent patch to fix an introduced bug.
f951fd57 1048
ddfcd446
PH
1049PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1050
d45b1de8
PH
1051PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1052
1053PH/08 An error is now given if message_size_limit is specified negative.
1054
38a0a95f 1055PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 1056 to be given (somewhat) arbitrary names.
38a0a95f 1057
a2405d83
JJ
1058JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1059 in 4.64-PH/09.
1060
1061JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1062 miscellaneous code fixes
1063
6ea85e9a
PH
1064PH/10 Added the log_reject_target ACL modifier to specify where to log
1065 rejections.
1066
26da7e20
PH
1067PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1068 hostname. This is wrong, because it relates to the incoming message (and
1069 probably the interface on which it is arriving) and not to the outgoing
1070 callout (which could be using a different interface). This has been
1071 changed to use the value of the helo_data option from the smtp transport
1072 instead - this is what is used when a message is actually being sent. If
1073 there is no remote transport (possible with a router that sets up host
1074 addresses), $smtp_active_hostname is used.
6ea85e9a 1075
14aa5a05 1076PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 1077 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
1078 (a) The code assumed that strncpy() returns a negative number on buffer
1079 overflow, which isn't the case. Replaced with Exim's string_format()
1080 function.
1081 (b) There were several signed/unsigned issues. I just did the minimum
1082 hacking in of casts. There is scope for a larger refactoring.
1083 (c) The code used strcasecmp() which is not a standard C function.
1084 Replaced with Exim's strcmpic() function.
1085 (d) The code set only $1; it now sets $auth1 as well.
1086 (e) A simple test gave the error "authentication client didn't specify
1087 service in request". It would seem that Dovecot has changed its
1088 interface. Fortunately there's a specification; I followed it and
1089 changed what the client sends and it appears to be working now.
1090
ff75a1f7
PH
1091PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1092 decoding.
1093
e6f6568e
PH
1094PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1095 address A is aliased to B and C, where B exists and C does not. Without
1096 -v the output is "A verified" because verification stops after a
1097 successful redirection if more than one address is generated. However,
1098 with -v the child addresses are also verified. Exim was outputting "A
1099 failed to verify" and then showing the successful verification for C,
1100 with its parentage. It now outputs "B failed to verify", showing B's
1101 parentage before showing the successful verification of C.
1102
d6f6e0dc
PH
1103PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1104 look up a TXT record in a specific list after matching in a combined
1105 list.
1106
322050c2
PH
1107PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1108 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1109 they consult the DNS. I had assumed they would set it the way they
1110 wanted; and indeed my experiments on Linux seem to show that in some
1111 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1112 To be on the safe side, however, I have now made the interface to
1113 host_find_byname() similar to host_find_bydns(), with an argument
1114 containing the DNS resolver options. The host_find_byname() function now
1115 sets these options at its start, just as host_find_bydns() does. The smtp
1116 transport options dns_qualify_single and dns_search_parents are passed to
1117 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1118 of host_find_byname() use the default settings of RES_DEFNAMES
1119 (qualify_single) but not RES_DNSRCH (search_parents).
1120
08955dd3
PH
1121PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1122 spool_read_header() do less string testing, by means of a preliminary
1123 switch on the second character of optional "-foo" lines. (This is
1124 overdue, caused by the large number of possibilities that now exist.
1125 Originally there were few.) While I was there, I also converted the
1126 str(n)cmp tests so they don't re-test the leading "-" and the first
1127 character, in the hope this might squeeze out yet more improvement.
1128
1eccaa59
PH
1129PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1130 flag allowing group syntax was set by the header_syntax check but not
1131 turned off, possible causing trouble later; (2) The flag was not being
1132 set at all for the header_verify test, causing "group"-style headers to
1133 be rejected. I have now set it in this case, and also caused header_
1134 verify to ignore an empty address taken from a group. While doing this, I
1135 came across some other cases where the code for allowing group syntax
1136 while scanning a header line wasn't quite right (mostly, not resetting
1137 the flag correctly in the right place). These bugs could have caused
1138 trouble for malformed header lines. I hope it is now all correct.
1139
602e59e5
PH
1140PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1141 with the "reply" argument non-NULL. The code, however (which originally
1142 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1143 but it didn't always do it. This confused somebody who was copying the
1144 code for some other use. I have removed all the tests.
1145
411ef850
PH
1146PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1147 feature that was used to support insecure browsers during the U.S. crypto
1148 embargo. It requires special client support, and Exim is probably the
1149 only MTA that supported it -- and would never use it because real RSA is
1150 always available. This code has been removed, because it had the bad
1151 effect of slowing Exim down by computing (never used) parameters for the
1152 RSA_EXPORT functionality.
1153
7befa435
PH
1154PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1155 authenticator to fail if there's a tab character in the incoming data
1156 (there should never be unless someone is messing about, as it's supposed
1157 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1158 if the connection is using TLS or if the remote IP is the same as the
1159 local IP, and the "valid-client-cert option" if a client certificate has
1160 been verified.
1161
48da4259 1162PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1163 authenticators. This can be used for authorization after authentication
1164 succeeds. (In the case of plaintext, it servers for both authentication
1165 and authorization.)
1166
48da4259
PH
1167PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1168 if any retry times were supplied.
1169
d1d5595c
PH
1170PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1171 connection, where there is no client IP address to check. In this
1172 situation, the verify now always succeeds.
1173
0ef732d9
PH
1174PH/25 Applied John Jetmore's -Mset patch.
1175
328895cc
PH
1176PH/26 Added -bem to be like -Mset, but loading a message from a file.
1177
fd700877
PH
1178PH/27 In a string expansion for a processed (not raw) header when multiple
1179 headers of the same name were present, leading whitespace was being
1180 removed from all of them, but trailing whitespace was being removed only
1181 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1182 before concatenation. Completely empty headers in a concatenation (as
1183 before) are ignored.
fd700877 1184
8dce1a6f
PH
1185PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1186 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1187
17af4a17
PH
1188PH/29 [Removed. This was a change that I later backed out, and forgot to
1189 correct the ChangeLog entry (that I had efficiently created) before
1190 committing the later change.]
f6c332bd
PH
1191
1192PH/30 Exim was sometimes attempting to deliver messages that had suffered
1193 address errors (4xx response to RCPT) over the same connection as other
1194 messages routed to the same hosts. Such deliveries are always "forced",
1195 so retry times are not inspected. This resulted in far too many retries
1196 for the affected addresses. The effect occurred only when there were more
1197 hosts than the hosts_max_try setting in the smtp transport when it had
1198 the 4xx errors. Those hosts that it had tried were not added to the list
1199 of hosts for which the message was waiting, so if all were tried, there
1200 was no problem. Two fixes have been applied:
1201
1202 (i) If there are any address or message errors in an SMTP delivery, none
1203 of the hosts (tried or untried) are now added to the list of hosts
1204 for which the message is waiting, so the message should not be a
1205 candidate for sending over the same connection that was used for a
1206 successful delivery of some other message. This seems entirely
1207 reasonable: after all the message is NOT "waiting for some host".
1208 This is so "obvious" that I'm not sure why it wasn't done
1209 previously. Hope I haven't missed anything, but it can't do any
1210 harm, as the worst effect is to miss an optimization.
1211
1212 (ii) If, despite (i), such a delivery is accidentally attempted, the
1213 routing retry time is respected, so at least it doesn't keep
1214 hammering the server.
1215
c1114884
PH
1216PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1217 in ${readsocket because some servers need this prod.
1218
7a0743eb
PH
1219PH/32 Added some extra debug output when updating a wait-xxx database.
1220
0d85fa3f
PH
1221PH/33 The hint "could be header name not terminated by colon", which has been
1222 given for certain expansion errors for a long time, was not being given
1223 for the ${if def:h_colon_omitted{... case.
1224
1bf43b78
PH
1225PH/34 The spec says: "With one important exception, whenever a domain list is
1226 being scanned, $domain contains the subject domain." There was at least
1227 one case where this was not true.
1228
520de300
PH
1229PH/35 The error "getsockname() failed: connection reset by peer" was being
1230 written to the panic log as well as the main log, but it isn't really
1231 panic-worthy as it just means the connection died rather early on. I have
1232 removed the panic log writing for the ECONNRESET error when getsockname()
1233 fails.
1234
48c7f9e2
PH
1235PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1236 runs only) independently of the message's sender address. This meant
1237 that, if the 4xx error was in fact related to the sender, a different
1238 message to the same recipient with a different sender could confuse
1239 things. In particualar, this can happen when sending to a greylisting
1240 server, but other circumstances could also provoke similar problems.
1241 I have changed the default so that the retry time for these errors is now
1242 based a combination of the sender and recipient addresses. This change
1243 can be overridden by setting address_retry_include_sender=false in the
1244 smtp transport.
1245
99ea1c86
PH
1246PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1247 remote server are returned as part of bounce messages. This was not
1248 happening for LMTP over a pipe (the lmtp transport), but now it is the
1249 same for both kinds of LMTP.
1250
a2042e78
PH
1251PH/38 Despite being documented as not happening, Exim was rewriting addresses
1252 in header lines that were in fact CNAMEs. This is no longer the case.
1253
4fbcfc2e
PH
1254PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1255 and queue runs started by the daemon processed all messages. This has
1256 been fixed so that -R and -S can now usefully be given with -q<time>.
1257
aa41d2de
PH
1258PH/40 Import PCRE release 6.7 (fixes some bugs).
1259
af561417
PH
1260PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1261
3cc66b45
PH
1262PH/42 Give an error if -q is specified more than once.
1263
194cc0e4
PH
1264PH/43 Renamed the variables $interface_address and $interface_port as
1265 $received_ip_address and $received_port, to make it clear that these
1266 values apply to message reception, and not to the outgoing interface when
1267 a message is delivered. (The old names remain recognized, of course.)
1268
a401ddaa
PH
1269PH/44 There was no timeout on the connect() call when using a Unix domain
1270 socket in the ${readsocket expansion. There now is.
1271
4e88a19f
PH
1272PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1273 be meaningful with "accept".
1274
d7d7b289
SC
1275SC/01 Eximstats V1.43
1276 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1277
1278SC/02 Eximstats V1.44
1279 Use a glob alias rather than an array ref in the generated
1280 parser. This improves both readability and performance.
1281
1282SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1283 Collect SpamAssassin and rejection statistics.
1284 Don't display local sender or destination tables unless
1285 there is data to show.
1286 Added average volumes into the top table text output.
1287
1288SC/04 Eximstats V1.46
1289 Collect data on the number of addresses (recipients)
1290 as well as the number of messages.
1291
1292SC/05 Eximstats V1.47
1293 Added 'Message too big' to the list of mail rejection
1294 reasons (thanks to Marco Gaiarin).
1295
1296SC/06 Eximstats V1.48
1297 Mainlog lines which have GMT offsets and are too short to
1298 have a flag are now skipped.
1299
1300SC/07 Eximstats V1.49 (Alain Williams)
1301 Added the -emptyok flag.
1302
1303SC/08 Eximstats V1.50
1304 Fixes for obtaining the IP address from reject messages.
1305
0ea2a468
JJ
1306JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1307 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1308 whitesspace changes from 4.64-PH/27
1309
1310JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1311 match 4.64-PH/13
1312
1313JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1314 are found, allow negative numbers in numeric criteria)
1315
1316JJ/06 exipick.20061117.2, added new $message_body_missing variable
1317
1318JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1319 to match changes made in 4.64-PH/43
1320
8a10f5a4
PH
1321PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1322
30e18802
PH
1323PH/47 Put in an explicit test for a DNS lookup of an address record where the
1324 "domain" is actually an IP address, and force a failure. This locks out
1325 those revolvers/nameservers that support "A-for-A" lookups, in
1326 contravention of the specifications.
1327
55728a4f
PH
1328PH/48 When a host name was looked up from an IP address, and the subsequent
1329 forward lookup of the name timed out, the host name was left in
1330 $sender_host_name, contrary to the specification.
d7d7b289 1331
d7837193
PH
1332PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1333 restricted to single-key lookups, Exim was not diagnosing an error if
1334 * or *@ was used with a query-style lookup.
1335
87054a31
PH
1336PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1337
ea2c01d2
MH
1338MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1339 long ago, but noone interested enough thought of it. Let's just say that
1340 the "1.1" means that there are some new functions that weren't there at
1341 some point in the past.
1342
e4fa6968
PH
1343PH/51 Error processing for expansion failure of helo_data from an smtp
1344 transport during callout processing was broken.
1345
56f5d9bd
PH
1346PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1347 tested/used via the -bh/-bhc/-bs options.
1348
922e1c28
PH
1349PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1350 bug, fixed in subsequent PCRE releases).
1351
21eb6e72
PH
1352PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1353 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1354
a0540757
PH
1355PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1356
944e9e9c 1357
478be7b0
SC
1358Exim version 4.63
1359-----------------
1360
1361SC/01 Use a glob alias rather than an array ref in eximstats generated
1362 parser. This improves both readability and performance.
1363
1364SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1365 Don't display local sender or destination tables in eximstats unless
1366 there is data to show.
1367 Added average volumes into the eximstats top table text output.
1368
1369SC/03 Collect data on the number of addresses (recipients) as well
1370 as the number of messages in eximstats.
1371
2b965a65
TF
1372TF/01 Correct an error in the documentation for the redirect router. Exim
1373 does (usually) call initgroups() when daemonizing.
478be7b0 1374
45b91596
PH
1375TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1376 with consistent privilege compared to when running as a daemon.
478be7b0 1377
c59f5781
TF
1378TF/03 Note in the spec that $authenticated_id is not set for local
1379 submissions from trusted users.
1380
90fc3069
TF
1381TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1382 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1383
6083aca0
TF
1384TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1385 by adding some example configuration directives to the default
1386 configuration file. A little bit of work is required to uncomment the
1387 directives and define how usernames and passwords are checked, but
1388 there is now a framework to start from.
1389
765b530f
PH
1390PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1391 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1392 without this. I don't know how relevant this is to other LDAP libraries.
1393
4e167a8c
PH
1394PH/02 Add the verb name to the "unknown ACL verb" error.
1395
4608d683
PH
1396PH/03 Magnus Holmgren's patch for filter_prepend_home.
1397
b8dc3e4a
PH
1398PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1399
5418e93b
PH
1400PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1401 directory not expanded when it should be if an expanded home directory
1402 was set for the address (which is overridden by the transport).
1403
b4a9bda2
PH
1404PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1405 libradius.
1406
45b91596
PH
1407PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1408 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1409 because it is too late at that time, and has no effect.
1410
5547e2c5
PH
1411PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1412 security issue with \' (bugzilla #107). I could not use the
1413 PQescapeStringConn() function, because it needs a PGconn value as one of
1414 its arguments.
1415
dbcef0ea
PH
1416PH/08 When testing addresses using -bt, indicate those final addresses that
1417 are duplicates that would not cause an additional delivery. At least one
1418 person was confused, thinking that -bt output corresponded to deliveries.
1419 (Suppressing duplicates isn't a good idea as you lose the information
1420 about possibly different redirections that led to the duplicates.)
1421
25257489
PH
1422PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1423 systems where poll() doesn't work, in particular OS X.
1424
c816d124
PH
1425PH/10 Added more information to debugging output for retry time not reached.
1426
a9ccd69a
PH
1427PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1428 operations in malware.c.
1429
75fa1910
PH
1430PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1431 signatures.
1432
a7d7aa58
PH
1433PH/13 If write_rejectlog was set false when logging was sent to syslog with
1434 syslog_duplication set false, log lines that would normally be written
1435 both the the main log and to the reject log were not written to syslog at
1436 all.
1437
42119b09
PH
1438PH/14 In the default configuration, change the use of "message" in ACL warn
1439 statements to "add_header".
1440
41609df5
PH
1441PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1442 not followed by a command (e.g. "seen endif").
1443
a5bd321b
PH
1444PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1445 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1446 latter.
1447
e85a7ad5 1448PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1449 so that it is now:
1450
e85a7ad5
PH
1451 ${if or { \
1452 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1453 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1454 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1455 }{no}{yes}}
1456
e85a7ad5
PH
1457 The Auto-Submitted: and various List- headers are standardised, whereas I
1458 don't think Precedence: ever was.
5dff5817 1459
d8fe1c03
PH
1460PH/18 Refactored debugging code in route_finduser() to show more information,
1461 in particular, the error code if getpwnam() issues one.
1462
16282d2b
PH
1463PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1464 This is apparently needed in addition to the PH/07 change above to avoid
1465 any possible encoding problems.
1466
35d40a98
PH
1467PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1468 but not after initializing Perl.
1469
034d99ab
PH
1470PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1471 output them only if debugging. By default they are written stderr,
1472 apparently, which is not desirable.
1473
6ec97b1b
PH
1474PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1475 queries.
1476
e22ca4ac
JJ
1477JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1478 --not options
1479
1480JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1481
33d73e3b
PH
1482PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1483 authenticated or an ident call has been made. Suppress the default
1484 values for $authenticated_id and $authenticated_sender (but permit -oMai
1485 and -oMas) when testing with -bh.
1486
9ecb03f3
PH
1487PH/24 Re-jigged the order of the tests in the default configuration so that the
1488 tests for valid domains and recipients precede the DNS black list and CSA
1489 tests, on the grounds that those ones are more expensive.
1490
084efe8d
PH
1491PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1492 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1493 This bug exists in every version of Exim that I still have, right back to
1494 0.12.
1495
366fc9f0
PH
1496PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1497 However, an attempt to turn on case-sensitivity in a regex key by
1498 including (?-i) didn't work because the subject string was already
1499 lowercased, and the effects were non-intuitive. It turns out that a
1500 one-line patch can be used to allow (?-i) to work as expected.
1501
c59f5781 1502
c887c79e
TF
1503Exim version 4.62
1504-----------------
1505
1506TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1507 other effects) broke the use of negated acl sub-conditions.
1508
1cce3af8
PH
1509PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1510 patch).
1511
afb3eaaf
PH
1512PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1513 "Deny" causes Exim to reject the incoming connection with a 554 error.
1514 Unfortunately, if there is a major crisis, such as a disk failure,
1515 tcp-wrappers gives "deny", whereas what one would like would be some
1516 kind of temporary error. A kludge has been added to help with this.
1517 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1518 554 error is used if errno is still zero or contains ENOENT (which occurs
1519 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1520 451 error is used.
1521
e173618b
PH
1522PH/03 Add -lutil to the default FreeBSD LIBS setting.
1523
dd16e114
PH
1524PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1525 errors. Otherwise a message that provokes a temporary error (when other
1526 messages do not) can cause a whole host to time out.
1527
f7fd3850
PH
1528PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1529 addresses were routed directly to files or pipes from a redirect router.
1530 File deliveries just didn't batch; pipe deliveries might have suffered
1531 odd errors.
1532
d87df92c
PH
1533PH/06 A failure to get a lock for a hints database would erroneously always say
1534 "Failed to get write lock", even when it was really a read lock.
1535
7e9f683d
PH
1536PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1537 of 0600. This has been changed to use the value of the lockfile_mode
1538 option (which defaults to 0600).
1539
bfad5236
PH
1540PH/08 Applied small patch from the Sieve maintainer.
1541
01c490df
PH
1542PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1543 folder from quota calculations, a direct delivery into this folder messed
1544 up the contents of the maildirsize file. This was because the regex was
1545 used only to exclude .Trash (or whatever) when the size of the mailbox
1546 was calculated. There was no check that a delivery was happening into an
1547 excluded directory. This bug has been fixed by ignoring all quota
1548 processing for deliveries into excluded directories.
1549
d6629cdc
PH
1550PH/10 Added the maildirfolder_create_regex option to appendfile.
1551
1cce3af8 1552
214e2000
PH
1553Exim version 4.61
1554-----------------
1555
1556PH/01 The code for finding all the local interface addresses on a FreeBSD
1557 system running IPv6 was broken. This may well have applied to all BSD
1558 systems, as well as to others that have similar system calls. The broken
1559 code found IPv4 interfaces correctly, but gave incorrect values for the
1560 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1561 that it would not match correctly against @[] and not recognize the IPv6
1562 addresses as local.
1563
f9daeae0
PH
1564PH/02 The ipliteral router was not recognizing addresses of the form user@
1565 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1566
7e66e54d
PH
1567PH/03 Added disable_ipv6.
1568
c8ea1597
PH
1569PH/04 Changed $reply_address to use the raw form of the headers instead of the
1570 decoded form, because it is most often used to construct To: headers
1571 lines in autoreplies, and the decoded form may well be syntactically
1572 invalid. However, $reply_address has leading white space removed, and all
1573 newlines turned into spaces so that the autoreply transport does not
1574 grumble.
1575
911f6fde
PH
1576PH/05 If group was specified without a user on a router, and no group or user
1577 was specified on a transport, the group from the router was ignored.
1578
47ca6d6c
PH
1579PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1580 for visible compile-time settings that can be used to change these
1581 numbers, for those that want even more. Backwards compatibility with old
1582 spool files has been maintained. However, going back to a previous Exim
1583 release will lost any variables that are in spool files.
1584
ed0e9820
PH
1585PH/07 Two small changes when running in the test harness: increase delay when
1586 passing a TCP/IP connection to a new process, in case the original
1587 process has to generate a bounce, and remove special handling of
1588 127.0.0.2 (sic), which is no longer necessary.
1589
eff37e47
PH
1590PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1591 be the same on different OS.
1592
1921d2ea
PH
1593PH/09 Moved a debug statement in filter processing to avoid a race problem when
1594 testing.
1595
b3f69ca8
JJ
1596JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1597 whether --show-vars was specified or not
1598
1599JJ/02 exipick: Added support for new ACL variable spool format introduced
1600 in 4.61-PH/06
1601
424a1c63
PH
1602PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1603 syntactically invalid From: or Reply-to: line, and a filter used this to
1604 generate an autoreply, and therefore failed to obtain an address for the
1605 autoreply, Exim could try to deliver to a non-existent relative file
1606 name, causing unrelated and misleading errors. What now happens is that
1607 it logs this as a hard delivery error, but does not attempt to create a
1608 bounce message.
1609
7a100415
PH
1610PH/11 The exinext utility has a -C option for testing purposes, but although
1611 the given file was scanned by exinext itself; it wasn't being passed on
1612 when Exim was called.
1613
19b9dc85
PH
1614PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1615 an end-of-file indication when reading a command response.
1616
309bd837
PH
1617PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1618 compiled. In many other places in Exim, IPv6 addresses are always
1619 recognized, so I have changed this. It also means that IPv4 domain
1620 literals of the form [IPV4:n.n.n.n] are now always recognized.
1621
59e82a2a
PH
1622PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1623 used if the router is not running as root, for example, when verifying at
1624 ACL time, or when using -bh. The debugging output from this situation was
1625 non-existent - all you got was a failure to exec. I have made two
1626 changes:
1627
1628 (a) Failures to set uid/gid, the current directory, or a process leader
1629 in a subprocess such as that created by queryprogram now generate
1630 suitable debugging ouput when -d is set.
1631
1632 (b) The queryprogram router detects when it is not running as root,
1633 outputs suitable debugging information if -d is set, and then runs
1634 the subprocess without attempting to change uid/gid.
1635
9edc04ce
PH
1636PH/15 Minor change to Makefile for building test_host (undocumented testing
1637 feature).
1638
1349e1e5
PH
1639PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1640 additional section of a DNS packet that returns MX or SRV records.
1641 Instead, it always explicitly searches for A/AAAA records. This avoids
1642 major problems that occur when a DNS server includes only records of one
1643 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1644 fixed another bug: if SRV records were looked up and the corresponding
1645 address records were *not* found in the additional section, the port
1646 values from the SRV records were lost.
1647
ea49d0e1
PH
1648PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1649 using the correct key (the original address) when searching the retry
1650 rules in order to find which one to use for generating the retry hint.
1651
064a94c9
PH
1652PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1653 adding the default one. Similarly, if it contains a Reply-To: header, the
1654 errors_reply_to option, if set, is not used.
1655
727071f8
PH
1656PH/19 When calculating a retry time, Exim used to measure the "time since
1657 failure" by looking at the "first failed" field in the retry record. Now
1658 it does not use this if it is later than than the arrival time of the
1659 message. Instead it uses the arrival time. This makes for better
1660 behaviour in cases where some deliveries succeed, thus re-setting the
1661 "first failed" field. An example is a quota failure for a huge message
1662 when small messages continue to be delivered. Without this change, the
1663 "time since failure" will always be short, possible causing more frequent
1664 delivery attempts for the huge message than are intended.
dd16e114 1665 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1666
f78eb7c6
PH
1667PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1668 $1, $2, $3) because the numerical variables can be reset during some
1669 expansion items (e.g. "match"), thereby losing the authentication data.
1670
21c28500
PH
1671PH/21 Make -bV show the size of off_t variables so that the test suite can
1672 decide whether to run tests for quotas > 2G.
1673
1674PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1675 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1676 filecount value is greater than 2G or if a quota value is greater than 2G
1677 on a system where the size of off_t is not greater than 4, a panic error
1678 is given.
1679
1688f43b
PH
1680PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1681 never match. The debug and -bh output now contains an explicit error
1682 message indicating a malformed IPv4 address or mask.
1683
1684PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1685 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1686 PH/23 above applies.
1687
9675b384
PH
1688PH/25 Do not write to syslog when running in the test harness. The only
1689 occasion when this arises is a failure to open the main or panic logs
1690 (for which there is an explicit test).
1691
6a3f1455
PH
1692PH/26 Added the /no_tell option to "control=freeze".
1693
dac79d3e
PH
1694PH/27 If a host name lookup failed very early in a connection, for example, if
1695 the IP address matched host_lookup and the reverse lookup yielded a name
1696 that did not have a forward lookup, an error message of the form "no IP
1697 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1698 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1699
5977a0b3
PH
1700PH/28 An enabling patch from MH: add new function child_open_exim2() which
1701 allows the sender and the authenticated sender to be set when
1702 submitting a message from within Exim. Since child_open_exim() is
1703 documented for local_scan(), the new function should be too.
1704
c91535f3
PH
1705PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1706 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1707 results in an empty string is now treated as unset.
1708
0d46a8c8
PH
1709PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1710
278c6e6c
PH
1711PH/31 Added sender_verify_fail logging option.
1712
2cbb4081
PH
1713PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1714 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1715 tidied the source and removed it altogether.
1716
3eef829e
PH
1717PH/33 When a queue run was abandoned because the load average was too high, a
1718 log line was always written; now it is written only if the queue_run log
1719 selector is set. In addition, the log line for abandonment now contains
1720 information about the queue run such as the pid. This is always present
1721 in "start" and "stop" lines but was omitted from the "abandon" line.
1722
1ab95fa6
PH
1723PH/34 Omit spaces between a header name and the colon in the error message that
1724 is given when verify = headers_syntax fails (if there are lots of them,
1725 the message gets confusing).
1726
230205fc
PH
1727PH/35 Change the default for dns_check_names_pattern to allow slashes within
1728 names, as there are now some PTR records that contain slashes. This check
1729 is only to protect against broken name servers that fall over on strange
1730 characters, so the fact that it applies to all lookups doesn't matter.
1731
75e0e026
PH
1732PH/36 Now that the new test suite is complete, we can remove some of the
1733 special code in Exim that was needed for the old test suite. For example,
1734 sorting DNS records because real resolvers return them in an arbitrary
1735 order. The new test suite's fake resolver always returns records in the
1736 same order.
1737
1738PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1739 bounces) except when queue_only is set, to avoid logging races between
1740 the different processes.
1741
145396a6
PH
1742PH/38 Panic-die if .include specifies a non-absolute path.
1743
3cd34f13
PH
1744PH/39 A tweak to the "H" retry rule from its user.
1745
11121d3d
JJ
1746JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1747 a label. They prevented compilation on older perls.
1748
1749JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1750 a warning to be raised on newish perls.
1751
1752JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1753 on queue. Changes to match documented behaviour of showing count of
1754 messages matching specified criteria.
1755
8def5aaf
PH
1756PH/40 Changed the default ident timeout from 30s to 5s.
1757
929ba01c
PH
1758PH/41 Added support for the use of login_cap features, on those BSD systems
1759 that have them, for controlling the resources used by pipe deliveries.
1760
2632889e
PH
1761PH/42 The content-scanning code uses fopen() to create files in which to put
1762 message data. Previously it was not paying any attention to the mode of
1763 the files. Exim runs with umask(0) because the rest of the code creates
1764 files with open(), and sets the required mode explicitly. Thus, these
1765 files were ending up world-writeable. This was not a big issue, because,
1766 being within the spool directory, they were not world-accessible. I have
1767 created a function called modefopen, which takes an additional mode
1768 argument. It sets umask(777), creates the file, chmods it to the required
1769 mode, then resets the umask. All the relevant calls to fopen() in the
1770 content scanning code have been changed to use this function.
1771
944a9c55
PH
1772PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1773 to 24 hours. This avoids potential overflow problems when processing G
1774 and H retry rules. I suspect nobody ever tinkers with this value.
1775
4a23603b
PH
1776PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1777
4730f942
PH
1778PH/45 When the plaintext authenticator is running as a client, the server's
1779 challenges are checked to ensure they are valid base64 strings. By
1780 default, the authentication attempt is cancelled if an invalid string is
1781 received. Setting client_ignore_invalid_base64 true ignores these errors.
1782 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1783 they are received. Thus, the responses can be made to depend on the
1784 challenges. If an invalid string is ignored, an empty string is placed in
1785 the variable.
1786
30dba1e6
PH
1787PH/46 Messages that are created by the autoreply transport now contains a
1788 References: header, in accordance with RFCs 2822 and 3834.
1789
382afc6b
PH
1790PH/47 Added authenticated_sender_force to the smtp transport.
1791
a86229cf
PH
1792PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1793
50c99ba6
PH
1794PH/49 Installed latest patch from the Sieve maintainer.
1795
d35e429d
PH
1796PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1797 was also set, the appendfile transport was unnecessarily scanning a
1798 directory of message files (e.g. for maildir delivery) to find the count
1799 of files (along with the size), even though it did not need this
1800 information. It now does the scan only if it needs to find either the
1801 size of the count of files.
1802
f90d018c
PH
1803PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1804
75def545
PH
1805PH/52 Two bugs concerned with error handling when the smtp transport is
1806 used in LMTP mode:
1807
1808 (i) Exim was not creating retry information for temporary errors given
1809 for individual recipients after the DATA command when the smtp transport
1810 was used in LMTP mode. This meant that they could be retried too
1811 frequently, and not timed out correctly.
1812
1813 (ii) Exim was setting the flag that allows error details to be returned
1814 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1815 recipients that were returned after the DATA command.
1816
1817PH/53 This is related to PH/52, but is more general: for any failing address,
1818 when detailed error information was permitted to be returned to the
1819 sender, but the error was temporary, then after the final timeout, only
1820 "retry timeout exceeded" was returned. Now it returns the full error as
1821 well as "retry timeout exceeded".
1822
c46782ef
PH
1823PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1824 do this, and (what is worse) MTAs that accept it.
1825
71fafd95
PH
1826PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1827 will now be deprecated.
1828
2c5db4fd
PH
1829PH/56 New os.c-cygwin from the Cygwin maintainer.
1830
9cf6b11a
JJ
1831JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1832 formats (previously only available in exim formats via -bpr, -bpru,
1833 and -bpra. Now also available in native and exiqgrep formats)
1834
1835JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1836 with very large, slow to parse queues
1837
1838JJ/08 exipick: added ! as generic prefix to negate any criteria format
1839
1840JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1841
898d150f
PH
1842PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1843 responses to authentication challenges, though it was showing the
1844 challenges; (ii) I've removed the CR characters from the debug output for
1845 SMTP output lines.
1846
46218253
PH
1847PH/58 Allow for the insertion of a newline as well as a space when a string
1848 is turned into more than one encoded-word during RFC 2047 encoding. The
1849 Sieve code now uses this.
1850
e97957bc
PH
1851PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1852 data_4xx, lost_connection, tls_required.
1853
81e509d7
PH
1854PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1855 message was being sent as an SMTP response.
1856
3d240ff7
PH
1857PH/61 Add -l and -k options to exicyclog.
1858
b37c4101
PH
1859PH/62 When verifying, if an address was redirected to one new address, so that
1860 verification continued, and the new address failed or deferred after
1861 having set something in $address_data, the value of $address_data was not
1862 passed back to the ACL. This was different to the case when no
1863 redirection occurred. The value is now passed back in both cases.
1864
79378e0f
PH
1865PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1866 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1867 use login_cap.h, so on its own it isn't the distinguishing feature. The
1868 new name refers directly to the setclassresources() function.
1869
e49c7bb4
PH
1870PH/65 Added configuration files for NetBSD3.
1871
d114ec46
PH
1872PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1873
f3d7df6c
PH
1874PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1875 is preferred over IPv4.
1876
715ab376
PH
1877PH/68 The bounce_return_message and bounce_return_body options were not being
1878 honoured for bounces generated during the reception of non-SMTP messages.
1879 In particular, this applied to messages rejected by the ACL. This bug has
1880 been fixed. However, if bounce_return_message is true and bounce_return_
1881 body is false, the headers that are returned for a non-SMTP message
1882 include only those that have been read before the error was detected.
1883 (In the case of an ACL rejection, they have all been read.)
1884
6b31b150
PH
1885PH/69 The HTML version of the specification is now built in a directory called
1886 spec_html instead of spec.html, because the latter looks like a path with
1887 a MIME-type, and this confuses some software.
1888
1889PH/70 Catch two compiler warnings in sieve.c.
1890
d515a917
PH
1891PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1892 function verify_get_ident() calls ip_connect() to connect a socket, but
1893 if the "connect()" function timed out, ip_connect() used to close the
1894 socket. However, verify_get_ident() also closes the socket later, and in
1895 between Exim writes to the log, which may get opened at this point. When
1896 the socket was closed in ip_connect(), the log could get the same file
1897 descriptor number as the socket. This naturally causes chaos. The fix is
1898 not to close the socket in ip_connect(); the socket should be closed by
1899 the function that creates it. There was only one place in the code where
1900 this was missing, in the iplookup router, which I don't think anybody now
1901 uses, but I've fixed it anyway.
1902
9b8fadde
PH
1903PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1904 well as to direct DNS lookups. Otherwise the handling of names in host
1905 lists is inconsistent and therefore confusing.
1906
214e2000 1907
5de37277
PH
1908Exim version 4.60
1909-----------------
1910
cc38ddbf
PH
1911PH/01 Two changes to the default runtime configuration:
1912
1913 (1) Move the checks for relay_from_hosts and authenticated clients from
1914 after to before the (commented out) DNS black list checks.
1915
1916 (2) Add control=submission to the relay_from_hosts and authenticated
1917 clients checks, on the grounds that messages accepted by these
1918 statements are most likely to be submissions.
5de37277 1919
72fdd6ae
PH
1920PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1921
1922 (1) Generate an error if the third argument for the ${prvs expansion is
1923 not a single digit.
1924
1925 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1926 string.
1927
1928 (3) Reset the variables that are obtained from the first argument of
1929 ${prvscheck and used in the second argument before leaving the code,
1930 because their memory is reclaimed, so using them afterwards may do
1931 silly things.
1932
1933 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1934 one (it's much easier than Tom thought :-).
1935
1936 (5) Because of (4), we can now allow for the use of $prvscheck_result
1937 inside the third argument.
cb9328de 1938
cb741023
PH
1939PH/03 For some reason, the default setting of PATH when running a command from
1940 a pipe transport was just "/usr/bin". I have changed it to
1941 "/bin:/usr/bin".
1942
f174f16e
PH
1943PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1944 anything to be listed in the output from -bV.
b2f5a032 1945
c25242d7
PH
1946PH/05 When a filter generated an autoreply, the entire To: header line was
1947 quoted in the delivery log line, like this:
1948
1949 => >A.N.Other <ano@some.domain> <original@ddress> ...
1950
1951 This has been changed so that it extracts the operative address. There
1952 may be more than one such address. If so, they are comma-separated, like
1953 this:
1954
1955 => >ano@some.domain,ona@other.domain <original@ddress> ...
1956
82c19f95
PH
1957PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1958 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1959 not being looked up in the rDNS to get a host name, Exim was showing the
1960 IP address twice in Received: lines, even though the IP addresses were
1961 identical. For example:
1962
1963 Received: from [1.2.3.4] (helo=[1.2.3.4])
1964
1965 However, if the real host name was known, it was omitting the HELO data
1966 if it matched the actual IP address. This has been tidied up so that it
1967 doesn't show the same IP address twice.
1968
d7ffbc12
PH
1969PH/07 When both +timestamp and +memory debugging was on, the value given by
1970 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1971 called by the debug printing, thereby overwriting the timestamp buffer.
1972 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1973
9f526266
PH
1974PH/08 When the original message was included in an autoreply transport, it
1975 always said "this is a copy of the message, including all the headers",
1976 even if body_only or headers_only was set. It now gives an appropriate
1977 message.
1978
87fcc8b9
PH
1979PH/09 Applied a patch from the Sieve maintainer which:
1980
1981 o fixes some comments
1982 o adds the (disabled) notify extension core
1983 o adds some debug output for the result of if/elsif tests
1984 o points to the current vacation draft in the documentation
1985 and documents the missing references header update
1986
1987 and most important:
1988
1989 o fixes a bug in processing the envelope test (when testing
1990 multiple envelope elements, the last element determinted the
1991 result)
1992
456682f5
PH
1993PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1994 Electronic Mail") by including:
1995
1996 Auto-submitted: auto-generated
1997
1998 in the messages that it generates (bounce messages and others, such as
1999 warnings). In the case of bounce messages for non-SMTP mesages, there was
2000 also a typo: it was using "Auto_submitted" (underscore instead of
2001 hyphen). Since every message generated by Exim is necessarily in response
2002 to another message, thes have all been changed to:
2003
2004 Auto-Submitted: auto-replied
2005
2006 in accordance with these statements in the RFC:
2007
2008 The auto-replied keyword:
2009
2010 - SHOULD be used on messages sent in direct response to another
2011 message by an automatic process,
2012
2013 - MUST NOT be used on manually-generated messages,
2014
2015 - MAY be used on Delivery Status Notifications (DSNs) and Message
2016 Disposition Notifications (MDNs),
2017
2018 - MUST NOT be used on messages generated by automatic or periodic
2019 processes, except for messages which are automatic responses to
2020 other messages.
2021
3e46c1aa
PH
2022PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
2023 to the default Received: header definition.
456682f5 2024
49826d12
PH
2025PH/12 Added log selector acl_warn_skipped (default on).
2026
eba0c039
PH
2027PH/13 After a successful wildlsearch lookup, discard the values of numeric
2028 variables because (a) they are in the wrong storage pool and (b) even if
2029 they were copied, it wouldn't work properly because of the caching.
2030
a0d6ba8a
PH
2031PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
2032 checking when decoding. Apparently there are clients that generate
2033 overlong encoded strings. Why am I not surprised?
2034
f0917727
PH
2035PH/15 If the first argument of "${if match_address" was not empty, but did not
2036 contain an "@" character, Exim crashed. Now it writes a panic log message
2037 and treats the condition as false.
2038
096fee00
PH
2039PH/16 In autoreply, treat an empty string for "once" the same as unset.
2040
024bd3c2
PH
2041PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2042 extension "envelope-auth". The code is finished and in agreement with
2043 other implementations, but there is no documentation so far and in fact,
2044 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2045 not changing the active code.
2046
2047 Print executed "if" and "elsif" statements when debugging is used. This
2048 helps a great deal to understand what a filter does.
2049
2050 Document more things not specified clearly in RFC3028. I had all this
2051 sorted out, when out of a sudden new issues came to my mind. Oops."
2052
df199fec
PH
2053PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2054 (Bugzilla #53).
2055
d27f1df3
PH
2056PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2057 canonical form (as documented). However, after a host name lookup from
2058 the IP address, check_host() was doing a simple string comparison with
2059 addresses acquired from the DNS when checking that the found name did
2060 have the original IP as one of its addresses. Since any found IPv6
2061 addresses are likely to be in abbreviated form, the comparison could
2062 fail. Luckily, there already exists a function for doing the comparison
2063 by converting both addresses to binary, so now that is used instead of
2064 the text comparison.
2065
96776534
PH
2066PH/20 There was another similar case to PH/19, when a complete host name was
2067 given in a host list; looking up its IP address could give an abbreviated
2068 form, whereas the current host's name might or might not be abbreviated.
2069 The same fix has been applied.
2070
5de37277 2071
9a799bc0
PH
2072Exim version 4.54
2073-----------------
2074
2075PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2076 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2077 It now does.
2078
99a4b039
PH
2079PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2080 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2081
2082PH/03 Typo: missing ".o" in src/pcre/Makefile.
2083
4b233853
PH
2084PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2085 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2086 Also, for "Auto-Submitted", treat anything other than "no" as
2087 non-personal, in accordance with RFC 3834. (Previously it treated
2088 anything starting "auto-" as non-personal.)
2089
8857ccfd
PH
2090TF/01 The control=submission/name=... option had a problem with syntax
2091 errors if the name included a slash character. The /name= option
2092 now slurps the rest of the string, so it can include any characters
2093 but it must come last in the list of options (after /sender_retain
2094 or /domain=).
2095
433a2980
PH
2096PH/05 Some modifications to the interface to the fake nameserver for the new
2097 testing suite.
2098
3e46c1aa 2099
9a799bc0 2100
e3a311ba
TK
2101Exim version 4.53
2102-----------------
2103
2104TK/01 Added the "success_on_redirect" address verification option. See
2105 NewStuff for rationale and an example.
2106
13b685f9
PH
2107PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2108
395ff96d
PH
2109PH/02 Patch to exigrep to allow it to work on syslog lines.
2110
5b68f6e4
PH
2111PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2112 fread() to skip over the body file's header line, because in Cygwin the
2113 header line is locked and is inaccessible.
2114
1ab52c69
PH
2115PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2116 co-exist for some time) to make it clear that it is the Exim ID that is
2117 referenced, not the Message-ID: header line.
2118
b07e6aa3
PH
2119PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2120 string_format() function, because snprintf() does not exist on all
2121 operating systems.
2122
254e032f
PH
2123PH/06 The use of forbid_filter_existstest now also locks out the use of the
2124 ${stat: expansion item.
2125
3af76a81
PH
2126PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2127 protocol synchronization error", to keep the pedants happy.
2128
2548ba04
PH
2129PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2130 well as for IRIX systems, when gcc is being used. See the host.c source
2131 file for comments.
2132
b6c6011d
PH
2133PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2134
cf39cf57
PH
2135PH/10 Named domain lists were not working if used in a queue_smtp_domains
2136 setting.
2137
f1513293
PH
2138PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2139 transport and to the smtp transport in LMTP mode.
2140
727549a4
PH
2141TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2142
af46795e
PH
2143PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2144 run a filter in a subprocess. This could lead to confusion in subsequent
2145 lookups in the parent process. There should also be a search_tidyup() at
2146 the end of the subprocess.
2147
d7b47fd0
PH
2148PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2149 only if the host matched helo_try_verify_hosts, which caused the
2150 verification to occur when the EHLO/HELO command was issued. The ACL just
2151 tested the remembered result. Now, if a previous verification attempt has
2152 not happened, "verify = helo" does it there and then.
2153
ee744174
JJ
2154JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2155
b582ab87
PH
2156TK/03 Fix log output including CR from clamd.
2157
41a13e0a
PH
2158PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2159 exist provoked a memory error which could cause a segfault.
2160
f625cc5a
PH
2161PH/15 Installed PCRE 6.2
2162
2163PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2164
21f7af35
PH
2165PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2166 of the problem. Specifically, suggested +O2 rather than +O1 for the
2167 HP-UX compiler.
2168
31480e42
PH
2169PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2170
2d280592
PH
2171PH/20 If a delivery was routed to a non-standard port by means of an SRV
2172 record, the port was not correctly logged when the outgoing_port log
2173 selector was set (it logged the transort's default port).
2174
7cd1141b
PH
2175PH/21 Added support for host-specific ports to manualroute, queryprogram,
2176 fallback_hosts, and "hosts" in the smtp transport.
2177
2178PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2179 host errors such as "Connection refused".
2180
750af86e
PH
2181PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2182 authentication with radiusclient 0.4.9:
2183
2184 - Error returned from rc_read_config was caught wrongly
2185 - Username/password not passed on to radius server due to wrong length.
2186
2187 The presumption is that some radiusclient API changes for 4.51/PH/17
2188 were not taken care of correctly. The code is still untested by me (my
2189 Linux distribution still has 0.3.2 of radiusclient), but it was
2190 contributed by a Radius user.
2191
2192PH/24 When doing a callout, the value of $domain wasn't set correctly when
2193 expanding the "port" option of the smtp transport.
2194
4304270b
TK
2195TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2196 while reading a MIME header. Thanks to Tom Hughes for a patch.
2197
750af86e
PH
2198PH/24 Include config.h inside local_scan.h so that configuration settings are
2199 available.
2200
64ffc24f
PH
2201PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2202 that in an ACL for RCPT (for example), you can examine exactly what was
2203 received.
2204
5dd9625b
PH
2205PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2206 commands, but it was not correctly comparing the address with the actual
2207 client host address. Thus, it would show the EHLO address in Received:
2208 header lines when this was not necessary.
2209
5591031b
PH
2210PH/27 Added the % operator to ${eval:}.
2211
ba18e66a
PH
2212PH/28 Exim tries to create and chdir to its spool directory when it starts;
2213 it should be ignoring failures (because with -C, for example, it has lost
2214 privilege). It wasn't ignoring creation failures other than "already
2215 exists".
2216
9cec981f
PH
2217PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2218 -bV or -d is used.
2219
aa2b5c79
PH
2220PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2221 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2222 too many continuations, the temporary file was not being removed, and the
2223 return code was incorrect.
aa2b5c79 2224
48a53b7f
PH
2225PH/31 Missing "BOOL" in function definition in filtertest.c.
2226
1c59d63b
PH
2227PH/32 Applied Sieve patches from the maintainer.
2228
671012da
TK
2229TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2230
1509d3a8
PH
2231PH/33 Added "verify = not_blind".
2232
2233PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2234 Local/Makefile (with some defaults set). These are used in built scripts
2235 such as exicyclog, but they have never been used in the exim_install
2236 script (though there are many overriding facilities there). I have
2237 arranged that the exim_install script now takes note of these two
2238 settings.
2239
2240PH/35 Installed configuration files for Dragonfly.
2241
2fe1a124
PH
2242PH/36 When a locally submitted message by a trusted user did not contain a
2243 From: header, and the sender address was obtained from -f or from an SMTP
2244 MAIL command, and the trusted user did not use -F to supply a sender
2245 name, $originator_name was incorrectly used when constructing a From:
2246 header. Furthermore, $originator_name was used for submission mode
2247 messages from external hosts without From: headers in a similar way,
2248 which is clearly wrong.
2249
8800895a
PH
2250PH/37 Added control=suppress_local_fixups.
2251
ccfdb010
PH
2252PH/38 When log_selector = +received_sender was set, and the addition of the
2253 sender made the log line's construction buffer exactly full, or one byte
2254 less than full, an overflow happened when the terminating "\n" was
2255 subsequently added.
2256
1130bfb0
PH
2257PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2258 when the result of a list match is failure because a DNS lookup failed.
2259
ebcb507f
PH
2260PH/40 RM_COMMAND is now used in the building process.
2261
c35e155c
PH
2262PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2263 the "build-* directories that it finds.
2264
95d1f782
PH
2265PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2266 address in a domain literal was a prefix of an interface address.
2267
fd6de02e
PH
2268PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2269 when verifying a sender address, unless rewrite_headers is false.
2270
58de37c5
PH
2271PH/44 Wrote a long comment about why errors_to addresses are verified as
2272 recipients, not senders.
2273
261cf466
TF
2274TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2275 the ratelimit ACL was added.
2276
3ee512ff
PH
2277PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2278
e08c430f
PH
2279PH/46 Added extra information about PostgreSQL errors to the error string.
2280
bef5a11f
PH
2281PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2282 avoiding the need to install special zones in a real server. This is
2283 backwards compatible; if it can't find the fake resolver, it drops back.
2284 Thus, both old and new test suites can be run.
2285
7546de58
TF
2286TF/02 Added util/ratelimit.pl
2287
e5d5a95f
TF
2288TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2289 clock is set back in time.
2290
2e88a017
TF
2291TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2292 Candler <B.Candler@pobox.com>.
2293
a5f65aa4
TF
2294TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2295 OK for addresses that are the result of redirections.
2296
e7726cbf
PH
2297PH/48 A number of further additions for the benefit of the new test suite,
2298 including a fake gethostbyname() that interfaces to the fake DNS resolver
2299 (see PH/47 above).
2300
a7fdad5b
TF
2301TF/06 The fix for widen_domains has also been applied to qualify_single and
2302 search_parents which are the other dnslookup options that can cause
2303 header rewrites.
2304
6af56900
PH
2305PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2306 type ("H").
2307
0925ede6
PH
2308PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2309
66afa403
TF
2310TF/07 Exim produced the error message "an SRV record indicated no SMTP
2311 service" if it encountered an MX record with an empty target hostname.
2312 The message is now "an MX or SRV record indicated no SMTP service".
2313
0154e85a
TF
2314TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2315 if the DNS of the sending site is misconfigured. This is quite a
2316 common situation. This change restores the behaviour of treating a
2317 helo verification defer as a failure.
2318
16f12c76
PH
2319PH/51 If self=fail was set on a router, the bounce message did not include the
2320 actual error message.
2321
bbe902f0 2322
e5a9dba6
PH
2323Exim version 4.52
2324-----------------
2325
2326TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2327
22c3b60b
PH
2328PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2329 command itself ended in error, the underlying message about the transport
2330 filter timeout was being overwritten with the pipe command error. Now the
2331 underlying error message should be appended to the second error message.
2332
06a9b4b5
PH
2333TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2334
c1ac6996
PH
2335PH/02 Reduce the amount of output that "make" produces by default. Full output
2336 can still be requested.
2337
9c7a242c
PH
2338PH/03 The warning log line about a condition test deferring for a "warn" verb
2339 was being output only once per connection, rather than after each
2340 occurrence (because it was using the same function as for successful
2341 "warn" verbs). This seems wrong, so I have changed it.
2342
87ba3f5f
PH
2343TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2344 it should not have, which might have caused a crash in the right
2345 circumstances, but probably never did.
2346
2347PH/04 Installed a modified version of Tony Finch's patch to make submission
2348 mode fix the return path as well as the Sender: header line, and to
2349 add a /name= option so that you can make the user's friendly name appear
2350 in the header line.
2351
29aba418
TF
2352TF/03 Added the control = fakedefer ACL modifier.
2353
fe0dab11
TF
2354TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2355 Mark Lowes for thorough testing.
870f6ba8 2356
11d337a4
TK
2357TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2358
2359TK/03 Merged latest SRS patch from Miles Wilton.
2360
415c8f3b
PH
2361PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2362 with the definition in sysexits.h (which is #included earlier).
2363 Fortunately, Exim does not actually use EX_OK. The code used to try to
2364 preserve the sysexits.h value, by assumimg that macro definitions were
2365 scanned for macro replacements. I have been disabused of this notion,
2366 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2367
958541e9
PH
2368PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2369 in the smtp transport. When a block could not be written in a single
2370 write() function, the timeout was being re-applied to each part-write.
2371 This seems wrong - if the receiver was accepting one byte at a time it
2372 would take for ever. The timeout is now adjusted when this happens. It
2373 doesn't have to be particularly precise.
2374
c206415f
TK
2375TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2376 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2377
2a4be8f9
PH
2378PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2379 without a domain if the check to <postmaster@domain> fails.
2380
1cba11c5
SC
2381SC/01 Eximstats: added -xls and the ability to specify output files
2382 (patch written by Frank Heydlauf).
2383
2384SC/02 Eximstats: use FileHandles for outputing results.
2385
2386SC/03 Eximstats: allow any combination of xls, txt, and html output.
2387
2388SC/04 Eximstats: fixed display of large numbers with -nvr option
2389
2390SC/05 Eximstats: fixed merging of reports with empty tables.
2391
2392SC/06 Eximstats: added the -include_original_destination flag
2393
2394SC/07 Eximstats: removed tabs and trailing whitespace.
2395
1005d00e
TK
2396TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2397
2398TK/06 MBOX spool code: Add real "From " MBOX separator line
2399 so the .eml file is really in mbox format (even though
2400 most programs do not really care). Patch from Alex Miller.
2401
2402TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2403 The latter is generated from $received_to and is only set if the
2404 message has one envelope recipient. SA can use these headers,
2405 obviously out-of-the-box. Patch from Alex Miller.
2406
9b4768fa
PH
2407PH/08 The ${def test on a variable was returning false if the variable's
2408 value was "0", contrary to what the specification has always said!
2409 The result should be true unless the variable is empty.
2410
2411PH/09 The syntax error of a character other than { following "${if
2412 def:variable_name" (after optional whitespace) was not being diagnosed.
2413 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2414 accidental colon was present, for example, could give incorrect results.
2415
0d7eb84a
PH
2416PH/10 Tidied the code in a number of places where the st_size field of a stat()
2417 result is used (not including appendfile, where other changes are about
2418 to be made).
2419
2420PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2421 This involved changing a lot of size variables from int to off_t. It
2422 should work with maildirs and everything.
2423
40727bee
TK
2424TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2425 spamd dying while we are connected to it.
2426
554d2369
TF
2427TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2428 <jgh@wizmail.org>
2429
1f922db1
PH
2430PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2431 function for BDB 4.3.
2432
ef213c3b
PH
2433PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2434
8ac170f3
PH
2435PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2436 the sources for PCRE have been re-arranged and more files are now
2437 involved.
2438
b1c749bb
PH
2439PH/15 The code I had for printing potentially long long variables in PH/11
2440 above was not the best (it lost precision). The length of off_t variables
2441 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2442 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2443 to be "long long int" or "long int". This is needed for the internal
2444 formatting function string_vformat().
b1c749bb 2445
4aac9b49
PH
2446PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2447 the configuration file to be ":syslog", then the script "guesses" where
2448 the logs files are, rather than using the compiled in default. In our
2449 case the guess is not the same as the compiled default, so the script
2450 suddenly stopped working when I started to use syslog. The patch checks
2451 to see if log_file_path is "". If so, it attempts to read it from exim
2452 with no configuration file to get the compiled in version, before it
2453 falls back to the previous guessing code."
2454
294520c8
TK
2455TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2456 implementing BATV in an Exim configuration. See NewStuff for the gory
2457 details.
2458
5bd022fe
PH
2459PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2460 Makefile that are specific to HP-UX.
2461
90e9ce59
PH
2462PH/18 If the "use_postmaster" option was set for a recipient callout together
2463 with the "random" option, the postmaster address was used as the MAIL
2464 FROM address for the random test, but not for the subsequent recipient
2465 test. It is now used for both.
2466
5ea81592
PH
2467PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2468 patch removes a few documentation additions to RFC 3028, because the
2469 latest draft now contains them. It adds the new en;ascii-case comparator
2470 and a new error check for 8bit text in MIME parts. Comparator and
2471 require names are now matched exactly. I enabled the subaddress
2472 extension, but it is not well tested yet (read: it works for me)."
2473
c6c2dc1d
PH
2474PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2475 rework some of the code of TK/09 above to avoid the hardwired use of
2476 "%lld" and "long long". Replaced the call to snprintf() with a call to
2477 string_vformat().
2478
fffffe4c
PH
2479PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2480 records point to non-existent hosts", "retry timeout exceeded", and
2481 "retry time not reached for any host after a long failure period".
ca02eafb 2482
9a26b6b2
PH
2483PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2484 experimental DomainKeys support:
2485
2486 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2487 (2) On an error such as an illegally used "control", the wrong name for
2488 the control was given.
2489
2490 These problems did NOT occur unless DomainKeys support was compiled.
2491
4aee0225
PH
2492PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2493
32d668a5
PH
2494PH/24 Added ${if match_ip condition.
2495
8187c3f3
PH
2496PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2497 databases so that it will be absolutely obvious if a crash occurs in the
2498 DB library. This is a regular occurrence (often caused by mis-matched
2499 db.h files).
2500
ff790e47 2501PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2502 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2503 picked up on a user's system that detects such things. There doesn't seem
2504 to be a gcc warning option for this - only an attribute that has to be
2505 put on the function's prototype. It seems that in Fedora Core 4 they have
2506 set this on a number of new functions. No doubt there will be more in due
2507 course.
ff790e47 2508
5417f6d1
PH
2509PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2510 specify a transport. However, if an address that was verified by such a
2511 router was the subject of a callout, Exim crashed because it tried to
2512 read the rcpt_include_affixes from the non-existent transport. Now it
2513 just assumes that the setting of that option is false. This bug was
2514 introduced by 4.51/PH/31.
2515
59cf8544
PH
2516PH/28 Changed -d+all to exclude +memory, because that information is very
2517 rarely of interest, but it makes the output a lot bigger. People tend to
2518 do -d+all out of habit.
2519
e7ad8a65
PH
2520PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2521 code in os-type was giving problems when libc.so lives in lib64, like on
2522 x86_64 Fedora Core.
2523
ade42478
PH
2524PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2525 aren't the modern standard, and it seems that some systems' include files
2526 don't always have them. Exim was already checking for some of the newer
2527 ones like T_AAAA, and defining it itself. I've added checks for all the
2528 record types that Exim uses.
2529
182ad5cf
PH
2530PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2531 not automatically generating a new one, as it is supposed to. This
2532 prevented TLS from working. If the file did exist, but contained invalid
2533 data, a new version was generated, as expected. It was only the case of a
2534 non-existent file that was broken.
2535
b0d9fc80
TK
2536TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2537 with a change in libdomainkeys > 0.64.
2538
2539TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2540 from DNS. If the selector record carries the flag, it now has
2541 precedence over the domain-wide flag.
2542
2543TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2544
47c7a64a
PH
2545PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2546 the use of a port name that isn't defined in /etc/services) occurred, the
2547 message was deferred as in a normal delivery, and thus remained on the
2548 spool, instead of being failed because of the mua_wrapper setting. This
2549 is now fixed, and I tidied up some of the mua_wrapper messages at the
2550 same time.
2551
a388bce4
SC
2552SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2553 the messages in a hash of arrays rather than using individual hashes.
2554 This is a bit cleaner and results in dramatic memory savings, albeit
2555 at a slight CPU cost.
2556
2557SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2558 as requested by Marc Sherman.
2559
2560SC/10 Eximstats: added histograms for user specified patterns as requested
2561 by Marc Sherman.
2562
0793e4ed
SC
2563SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2564
c58b88df
PH
2565PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2566 fopen() in the content-scanning modules that did not already have it.
2567
e7ad8a65 2568
7982096b
PH
2569Exim version 4.51
2570-----------------
2571
1a46a8c5
PH
2572TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2573 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2574
2f079f46 2575TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2576
2577TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2578
2579PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2580 to test Sieve filters that use "vacation".
2581
2582PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2583 that changes the way the GnuTLS parameters are stored in the cache file.
2584 The new format can be generated externally. For backward compatibility,
2585 if the data in the cache doesn't make sense, Exim assumes it has read an
2586 old-format file, and it generates new data and writes a new file. This
2587 means that you can't go back to an older release without removing the
2588 file.
2589
2590PH/03 A redirect router that has both "unseen" and "one_time" set does not
2591 work if there are any delivery delays because "one_time" forces the
2592 parent to be marked "delivered", so its unseen clone is never tried
2593 again. For this reason, Exim now forbids the simultaneous setting of
2594 these two options.
2595
2596PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2597 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2598 entry if you want to know the details. The fix, however, neglected to
2599 consider the case when local delivery batching is involved. The test for
2600 "previously delivered" was not happening when checking to see if an
2601 address could be batched with a previous (undelivered) one; under
2602 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2603 address.
1a46a8c5
PH
2604
2605PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2606 in its include files, and this causes problems building Exim.
2607
2608PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2609 header_syntax) but Exim was just ignoring anything given after a slash.
2610 In particular, this caused confusion with an attempt to use "verify =
2611 reverse_host_lookup/defer_ok". An error is now given when options are
2612 supplied for verify items that do not have them. (Maybe reverse_host_
2613 lookup should have a defer_ok option, but that's a different point.)
2614
2615PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2616 defined by RFC 821) to 2048, because there were problems with some AUTH
2617 commands, and RFC 1869 says the size should be increased for extended
2618 SMTP commands that take arguments.
2619
2620PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2621 Finch).
2622
2623PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2624 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2625
49c2d5ea
PH
2626PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2627 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2628 whatever). Otherwise the password may appear in the log. Following change
2629 PH/42 below, there is no longer a chance of it appearing in a bounce
2630 message.
49c2d5ea 2631
bf759a8b
PH
2632PH/11 Installed exipick version 20050225.0 from John Jetmore.
2633
83364d30
PH
2634PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2635 of its addresses was ever tried. (Bugzilla bug #2.)
2636
7999bbd7
PH
2637PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2638 the result incorrectly in the debug output. (It correctly added a newline
2639 to what was transported.)
2640
7dbf77c9
PH
2641TF/01 Added $received_time.
2642
74e0617f
PH
2643PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2644 commented out examples of how to interface to a virus scanner and to
2645 SpamAssassin. Also added commented examples of av_scanner and
2646 spamd_address settings.
2647
2f079f46
PH
2648PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2649 and controls are allowed in which ACLs. There were a couple of minor
2650 errors. Some of the entries in the conditions table (which is a table of
2651 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2652 negation of where the condition IS allowed.
2653
8c841523
PH
2654PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2655
7766a4f0
PH
2656PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2657 header file does not have a version number, so I've had to invent a new
2658 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2659 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2660 radiusclient), but it was contributed by a Radius user.
2661
8b417f2c
PH
2662PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2663 files or directories, for OpenSSL.
2664
901f42cb
PH
2665PH/19 When an Exim process that is running as root has to create an Exim log
2666 file, it does so in a subprocess that runs as exim:exim so as to get the
2667 ownership right at creation (otherwise, other Exim processes might see
2668 the file with the wrong ownership). There was no test for failure of this
2669 fork() call, which would lead to the process getting stuck as it waited
2670 for a non-existent subprocess. Forks do occasionally fail when resources
2671 run out. I reviewed all the other calls to fork(); they all seem to check
2672 for failure.
2673
f9b9210e
PH
2674PH/20 When checking for unexpected SMTP input at connect time (before writing
2675 the banner), Exim was not dealing correctly with a non-positive return
2676 from the read() function. If the client had disconnected by this time,
2677 the result was a log entry for a synchronization error with an empty
2678 string after "input=" when read() returned zero. If read() returned -1
2679 (an event I could not check), uninitialized data bytes were printed.
2680 There were reports of junk text (parts of files, etc) appearing after
2681 "input=".
2682
54cdb463
PH
2683PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2684
cf00dad6
PH
2685PH/22 Added support for macro redefinition, and (re)definition in between
2686 driver and ACL definitions.
2687
acb1b346
PH
2688PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2689 forgetting to use the resulting value; it was using the unexpanded value.
2690
c5ddb310
PH
2691PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2692 hadn't been configured. The fix is from Juergen Kreileder, who
2693 understands it better than I do:
2694
2695 "Here's what I see happening with three configured cyrus_sasl
2696 authenticators configured (plain, login, cram-md5):
2697
2698 On startup auth_cyrus_sasl_init() gets called for each of these.
2699 This means three calls to sasl_listmech() without a specified mech_list.
2700 => SASL tests which mechs of all available mechs actually work
2701 => three warnings about OTP not working
2702 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2703
2704 With the patch, sasl_listmech() also gets called three times. But now
2705 SASL's mech_list option is set to the server_mech specified in the the
2706 authenticator. Or in other words, the answer from sasl_listmech()
2707 gets limited to just the mech you're testing for (which is different
2708 for each call.)
2709 => the return list contains just 'plain' or 'login', 'cram-md5' or
2710 nothing depending on the value of ob->server_mech.
2711
2712 I've just tested the patch: Authentication still works fine,
2713 unavailable mechs specified in the exim configuration are still
2714 caught, and the auth.log warnings about OTP are gone."
2715
31619da6
PH
2716PH/25 When debugging is enabled, the contents of the command line are added
2717 to the debugging output, even when log_selector=+arguments is not
2718 specified.
2719
bebaf0fc
PH
2720PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2721 answer is "GNU", and only if the return is "GNU/something" is the answer
2722 "Linux".
2723
475fe28a
PH
2724PH/27 $acl_verify_message is now set immediately after the failure of a
2725 verification in an ACL, and so is available in subsequent modifiers. In
2726 particular, the message can be preserved by coding like this:
2727
2728 warn !verify = sender
2729 set acl_m0 = $acl_verify_message
2730
2731 Previously, $acl_verify_message was set only while expanding "message"
2732 and "log_message" when a very denied access.
2733
7e8bec7a
PH
2734PH/28 Modified OS/os.c-Linux with
2735
2736 -#ifndef OS_LOAD_AVERAGE
2737 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2738
2739 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2740 nomenclature these days.)
2741
e4a89c47
PH
2742PH/29 Installed patch from the Sieve maintainer that adds the options
2743 sieve_useraddress and sieve_subaddress to the redirect router.
2744
5ca2a9a1
PH
2745PH/30 In these circumstances:
2746 . Two addresses routed to the same list of hosts;
2747 . First host does not offer TLS;
2748 . First host accepts first address;
2749 . First host gives temporary error to second address;
2750 . Second host offers TLS and a TLS session is established;
2751 . Second host accepts second address.
2752 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2753 and peerdn, if requested) that were in fact used only for the second
2754 address.
7e8bec7a 2755
c688b954
PH
2756PH/31 When doing a callout as part of verifying an address, Exim was not paying
2757 attention to any local part prefix or suffix that was matched by the
2758 router that accepted the address. It now behaves in the same way as it
2759 does for delivery: the affixes are removed from the local part unless
2760 rcpt_include_affixes is set on the transport.
2761
fed77020
PH
2762PH/32 Add the sender address, as F=<...>, to the log line when logging a
2763 timeout during the DATA phase of an incoming message.
2764
7fe1560f
PH
2765PH/33 Sieve envelope tests were broken for match types other than :is. I have
2766 applied a patch sanctioned by the Sieve maintainer.
c688b954 2767
ebb6e6d5
PH
2768PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2769 the uid or gid is negative. A case of a negative gid caused this to be
2770 noticed. The fix allows for either to be negative.
2771
9c4e8f60
PH
2772PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2773 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2774 overlooked.
2775
2776PH/36 The change PH/12 above was broken. Fixed it.
2777
d7174846
PH
2778PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2779 the grounds that routing the same address twice would always produce the
2780 same answer. This might have been true once, but it is certainly no
2781 longer true now. Routing a child address may depend on the previous
2782 routing that produced that child. Some complicated redirection strategies
2783 went wrong when messages had multiple recipients, and made Exim's
2784 behaviour dependent on the order in which the addresses were given.
2785
2786 I have moved the duplicate checking until after the routing is complete.
2787 Exim scans the addresses that are assigned to local and remote
2788 transports, and removes any duplicates. This means that more work will be
2789 done, as duplicates will always all be routed, but duplicates are
2790 presumably rare, so I don't expect this is of any significance.
2791
2792 For deliveries to pipes, files, and autoreplies, the duplicate checking
2793 still happens during the routing process, since they are not going to be
2794 routed further.
2795
cfe75fc3
PH
2796PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2797 It corrects a timeout issue with spamd. This is Ian's comment: "The
2798 background is that sometimes spamd either never reads data from a
2799 connection it has accepted, or it never writes response data. The exiscan
2800 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2801 blindly assumes that writes won't block so it may never time out."
2802
be22d70e
PH
2803PH/39 Allow G after quota size as well as K and M.
2804
0612b098
PH
2805PH/40 The value set for $authenticated_id in an authenticator may not contain
2806 binary zeroes or newlines because the value is written to log lines and
2807 to spool files. There was no check on this. Now the value is run through
2808 the string_printing() function so that such characters are converted to
2809 printable escape sequences.
2810
2e0c1448
PH
2811PH/41 $message_linecount is a new variable that contains the total number of
2812 lines in the message. Compare $body_linecount, which is the count for the
2813 body only.
2814
447d236c
PH
2815PH/42 Exim no longer gives details of delivery errors for specific addresses in
2816 bounce and delay warning messages, except in certain special cases, which
2817 are as follows:
2818
2819 (a) An SMTP error message from a remote host;
2820 (b) A message specified in a :fail: redirection;
2821 (c) A message specified in a "fail" command in a system filter;
2822 (d) A message specified in a FAIL return from the queryprogram router;
2823 (e) A message specified by the cannot_route_message router option.
2824
2825 In these cases only, Exim does include the error details in bounce and
2826 warning messages. There are also a few cases where bland messages such
2827 as "unrouteable address" or "local delivery error" are given.
2828
d20976dc
PH
2829PH/43 $value is now also set for the "else" part of a ${run expansion.
2830
f656d135
PH
2831PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2832 being worked on, but at least Exim now implements the latest version to
2833 play with."
2834
2e2a30b4
PH
2835PH/45 In a pipe transport, although a timeout while waiting for the pipe
2836 process to complete was treated as a delivery failure, a timeout while
2837 writing the message to the pipe was logged, but erroneously treated as a
2838 successful delivery. Such timeouts include transport filter timeouts. For
2839 consistency with the overall process timeout, these timeouts are now
2840 treated as errors, giving rise to delivery failures by default. However,
2841 there is now a new Boolean option for the pipe transport called
2842 timeout_defer, which, if set TRUE, converts the failures into defers for
2843 both kinds of timeout. A transport filter timeout is now identified in
2844 the log output.
2845
9176e9f0
PH
2846PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2847 systems where "make" and "gmake" are different, calling "gmake" at top
2848 level broke things. I've arranged for the value of $(MAKE) to be passed
2849 from the Makefile to this script so that it can call the same version of
2850 "make".
2851
7982096b 2852
bbe902f0
PH
2853A note about Exim versions 4.44 and 4.50
2854----------------------------------------
2855
2856Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2857changes of various kinds. As a consequence, a big documentation update was
2858needed. This delayed the release for rather longer than seemed good, especially
2859in the light of a couple of (minor) security issues. Therefore, the changes
2860that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2861release. So 4.44 and 4.50 are in effect two different branches that both start
2862from 4.43.
2863
2864I have left the 4.50 change log unchanged; it contains all the changes since
28654.43. The change log for 4.44 is below; many of its items are identical to
2866those for 4.50. This seems to be the most sensible way to preserve the
2867historical information.
2868
2869
f7b63901 2870Exim version 4.50
495ae4b0
PH
2871-----------------
2872
5fe762f6
PH
2873 1. Minor wording change to the doc/README.SIEVE file.
2874
139059f6 2875 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2876 computation of the current number of files was incorrect.
495ae4b0 2877
7086e875
PH
2878 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2879 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2880 place.
2881
35af9f61
PH
2882 4. Give more explanation in the error message when the command for a transport
2883 filter fails to execute.
2884
b668c215
PH
2885 5. There are several places where Exim runs a non-Exim command in a
2886 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2887 was being done only for the command run by the queryprogram router. It is
2888 now done for all such subprocesses. The other cases are: ${run, transport
2889 filters, and the commands run by the lmtp and pipe transports.
2890
a494b1e1
PH
2891 6. Added CONFIGURE_GROUP build-time option.
2892
2893 7. Some older OS have a limit of 256 on the maximum number of file
2894 descriptors. Exim was using setrlimit() to set 1000 as a large value
2895 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2896 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2897
c5fcb476
PH
2898 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2899 was an oversight, and furthermore, ever since the addition of extra
2900 controls (e.g. 4.43/32), the checks on when to allow different forms of
2901 "control" were broken. There should now be diagnostics for all cases when a
2902 control that does not make sense is encountered.
2903
69358f02
PH
2904 9. Added the /retain_sender option to "control=submission".
2905
5be20824
PH
290610. $recipients is now available in the predata ACL (oversight).
2907
eb2c0248
PH
290811. Tidy the search cache before the fork to do a delivery from a message
2909 received from the command line. Otherwise the child will trigger a lookup
2910 failure and thereby defer the delivery if it tries to use (for example) a
2911 cached ldap connection that the parent has called unbind on.
2912
2a3eea10
PH
291312. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2914 of $address_data from the recipient verification was clobbered by the
2915 sender verification.
2916
291713. The value of address_data from a sender verification is now available in
2918 $sender_address_data in subsequent conditions in the ACL statement.
2919
23c7ff99
PH
292014. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2921
4deaf07d
PH
292215. Added a new option "connect=<time>" to callout options, to set a different
2923 connection timeout.
2924
926e1192
PH
292516. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2926 was its contents. (It was OK if the option was not defined at all.)
2927
650edc6f
PH
292817. A "Completed" log line is now written for messages that are removed from
2929 the spool by the -Mrm option.
2930
2c7db3f5
PH
293118. New variables $sender_verify_failure and $recipient_verify_failure contain
2932 information about exactly what failed.
2933
3d235903
PH
293419. Added -dd to debug only the daemon process.
2935
7c7ad977
PH
293620. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2937 handles timeouts, both on the server side and network timeouts. Renamed the
2938 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2939
981756db
PH
294021. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2941 It is now set to "smtps".
2942
d4eb88df
PH
294322. $host_address is now set to the target address during the checking of
2944 ignore_target_hosts.
2945
294623. When checking ignore_target_hosts for an ipliteral router, no host name was
2947 being passed; this would have caused $sender_host_name to have been used if
2948 matching the list had actually called for a host name (not very likely,
2949 since this list is usually IP addresses). A host name is now passed as
2950 "[x.x.x.x]".
2951
7d468ab8
PH
295224. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2953 code that specifies a non-restarting handler (typically sigaction() in
2954 modern systems) in an attempt to fix a rare and obscure crash bug.
2955
295625. Narrowed the window for a race in the daemon that could cause it to ignore
2957 SIGCHLD signals. This is not a major problem, because they are used only to
2958 wake it up if nothing else does.
2959
62c0818f
PH
296026. A malformed maildirsize file could cause Exim to calculate negative values
2961 for the mailbox size or file count. Odd effects could occur as a result.
2962 The maildirsize information is now recalculated if the size or filecount
2963 end up negative.
2964
26034054
PH
296527. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2966 support for a long time. Removed HAVE_SYS_VFS_H.
2967
af66f652
PH
296828. Installed the latest version of exipick from John Jetmore.
2969
90af77f4
PH
297029. In an address list, if the pattern was not a regular expression, an empty
2971 subject address (from a bounce message) matched only if the pattern was an
2972 empty string. Non-empty patterns were not even tested. This was the wrong
2973 because it is perfectly reasonable to use an empty address as part of a
2974 database query. An empty address is now tested by patterns that are
2975 lookups. However, all the other forms of pattern expect the subject to
2976 contain a local part and a domain, and therefore, for them, an empty
2977 address still always fails if the pattern is not itself empty.
2978
d8ef3577
PH
297930. Exim went into a mad DNS loop when attempting to do a callout where the
2980 host was specified on an smtp transport, and looking it up yielded more
2981 than one IP address.
2982
5cb8cbc6
PH
298331. Re-factored the code for checking spool and log partition space into a
2984 function that finds that data and another that does the check. The former
2985 is then used to implement four new variables: $spool_space, $log_space,
2986 $spool_inodes, and $log_inodes.
2987
14702f5b
PH
298832. The RFC2047 encoding function was originally intended for short strings
2989 such as real names; it was not keeping to the 75-character limit for
2990 encoded words that the RFC imposes. It now respects the limit, and
2991 generates multiple encoded words if necessary. To be on the safe side, I
2992 have increased the buffer size for the ${rfc2047: expansion operator from
2993 1024 to 2048 bytes.
2994
063b1e99
PH
299533. It is now permitted to omit both strings after an "if" condition; if the
2996 condition is true, the result is "true". As before, when the second string
2997 is omitted, a false condition yields an empty string. This makes it less
2998 cumbersome to write custom ACL and router conditions.
2999
652e1b65
PH
300034. Failure to deliver a bounce message always caused it to be frozen, even if
3001 there was an errors_to setting on the router. The errors_to setting is now
3002 respected.
3003
6f0c9a4f
PH
300435. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3005 canonical form (fully expanded) before being placed in
3006 $sender_host_address.
3007
33397d19
PH
300836. The table in the code that translates DNS record types into text (T_A to
3009 "A" for instance) was missing entries for NS and CNAME. It is just possible
3010 that this could have caused confusion if both these types were looked up
3011 for the same domain, because the text type is used as part of Exim's
3012 per-process caching. But the chance of anyone hitting this buglet seems
3013 very small.
3014
7bb56e1f
PH
301537. The dnsdb lookup has been extended in a number of ways.
3016
3017 (1) There is a new type, "zns", which walks up the domain tree until it
3018 finds some nameserver records. It should be used with care.
3019
ea3bc19b
PH
3020 (2) There is a new type, "mxh", which is like "mx" except that it returns
3021 just the host names, not the priorities.
3022
3023 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
3024 looked up. The behaviour when one of the lookups defers can be
3025 controlled by a keyword.
7bb56e1f 3026
ea3bc19b 3027 (4) It is now possible to specify the separator character for use when
7bb56e1f 3028 multiple records are returned.
33397d19 3029
0bcb2a0e
PH
303038. The dnslists ACL condition has been extended: it is now possible to supply
3031 a list of IP addresses and/or domains to be looked up in a particular DNS
3032 domain.
3033
2ac0e484
PH
303439. Added log_selector=+queue_time_overall.
3035
4e1fde53
PH
303640. When running the queue in the test harness, wait just a tad after forking a
3037 delivery process, to get repeatability of debugging output.
3038
de365ded
PH
303941. Include certificate and key file names in error message when GnuTLS fails
3040 to set them up, because the GnuTLS error message doesn't include the name
3041 of the failing file when there is a problem reading it.
3042
f05da2e8
PH
304342. Allow both -bf and -bF in the same test run.
3044
d6453af2
PH
304543. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
3046
f7b63901
PH
304744. The "Exiscan patch" is now merged into the mainline Exim source.
3048
304945. Sometimes the final signoff response after QUIT could fail to get
3050 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3051 < 0 before doing a fflush(). This bug looks as though it goes back to the
3052 introduction of TLS in release 3.20, but "sometimes" must have been rare
3053 because the tests only now provoked it.
3054
a444213a
PH
305546. Reset the locale to "C" after calling embedded Perl, in case it was changed
3056 (this can affect the format of dates).
3057
0ec020ea
PH
305847. exim_tidydb, when checking for the continued existence of a message for
3059 which it has found a message-specific retry record, was not finding
3060 messages that were in split spool directories. Consequently, it was
3061 deleting retry records that should have stayed in existence.
3062
b1206957
PH
306348. Steve fixed some bugs in eximstats.
3064
306549. The SPA authentication driver was not abandoning authentication and moving
3066 on to the next authenticator when an expansion was forced to fail,
3067 contradicting the general specification for all authenticators. Instead it
3068 was generating a temporary error. It now behaves as specified.
3069
26dd5a95
PH
307050. The default ordering of permitted cipher suites for GnuTLS was pessimal
3071 (the order specifies the preference for clients). The order is now AES256,
3072 AES128, 3DES, ARCFOUR128.
3073
343b2385
PH
307451. Small patch to Sieve code - explicitly set From: when generating an
3075 autoreply.
3076
1c5466b9
PH
307752. Exim crashed if a remote delivery caused a very long error message to be
3078 recorded - for instance if somebody sent an entire SpamAssassin report back
3079 as a large number of 550 error lines. This bug was coincidentally fixed by
3080 increasing the size of one of Exim's internal buffers (big_buffer) that
3081 happened as part of the Exiscan merge. However, to be on the safe side, I
3082 have made the code more robust (and fixed the comments that describe what
3083 is going on).
3084
55ee9ee3
PH
308553. Now that there can be additional text after "Completed" in log lines (if
3086 the queue_time_overall log selector is set), a one-byte patch to exigrep
3087 was needed to allow it to recognize "Completed" as not the last thing in
3088 the line.
3089
d38f8232
PH
309054. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
3091 patch that reportedly fixes this has been added. I am not expert enough to
3092 create a test for it. This is what the patch creator wrote:
3093
3094 "I found a little strange behaviour of ldap code when working with
3095 Windows 2003 AD Domain, where users was placed in more than one
3096 Organization Units. When I tried to give exim partial DN, the exit code
3097 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
3098 But simultaneously result of request was absolutely normal ldap result,
3099 so I produce this patch..."
3100
3295e65b
PH
3101 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
3102 REFERENCE, so I have modified the code to exclude the patch when that macro
3103 is not defined.
3104
7102e136
PH
310555. Some experimental protocols are using DNS PTR records for new purposes. The
3106 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
3107 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3108 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 3109 CAN-2005-0021
7102e136 3110
3ca0ba97
PH
311156. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
3112
c2bcbe20
PH
311357. Double the size of the debug message buffer (to 2048) so that more of very
3114 long debug lines gets shown.
3115
18ce445d
PH
311658. The exicyclog utility now does better if the number of log files to keep
3117 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
3118
1f5b4c3d
PH
311959. Two changes related to the smtp_active_hostname option:
3120
3121 (1) $smtp_active_hostname is now available as a variable.
3122 (2) The default for smtp_banner uses $smtp_active_hostname instead
3123 of $primary_hostname.
3124
b975ba52
PH
312560. The host_aton() function is supposed to be passed a string that is known
3126 to be a valid IP address. However, in the case of IPv6 addresses, it was
3127 not checking this. This is a hostage to fortune. Exim now panics and dies
3128 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
3129 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3130 components; fortuitously, this particular loophole had already been fixed
3131 by change 4.50/55 above.
3132
3133 If there are any other similar loopholes, the new check in host_aton()
3134 itself should stop them being exploited. The report I received stated that
3135 data on the command line could provoke the exploit when Exim was running as
3136 exim, but did not say which command line option was involved. All I could
3137 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3138 running as the user.
ea3a6f44 3139 CAN-2005-0021
85b87bc2
PH
3140
314161. There was a buffer overflow vulnerability in the SPA authentication code
3142 (which came originally from the Samba project). I have added a test to the
3143 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 3144 CAN-2005-0022
b975ba52 3145
17ffcae7
PH
314662. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3147 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3148
d95f9fdb
PH
314963. The daemon start-up calls getloadavg() while still root for those OS that
3150 need the first call to be done as root, but it missed one case: when
3151 deliver_queue_load_max is set with deliver_drop_privilege. This is
3152 necessary for the benefit of the queue runner, because there is no re-exec
3153 when deliver_drop_privilege is set.
3154
86b8287f
PH
315564. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3156 This has been fixed.
3157
60dc5e56
PH
315865. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3159 was in use, was not putting the data itself into the right store pool;
3160 consequently, it could be overwritten for a subsequent message in the same
3161 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3162 the caching.)
3163
533244af
PH
316466. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3165
a5a28604
PH
316667. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3167 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3168 the function were treating the return as a boolean value, which happened to
3169 work because 0=false and not-0=true, but is not correct code.
3170
7e634d24
PH
317168. The host_aton() function was not handling scoped IPv6 addresses (those
3172 with, for example, "%eth0" on the end) correctly.
3173
3e11c26b
PH
317469. Fixed some compiler warnings in acl.c for the bitmaps specified with
3175 negated items (that is, ~something) in unsigned ints. Some compilers
3176 apparently mutter when there is no cast.
3177
6729cf78
PH
317870. If an address verification called from an ACL failed, and did not produce a
3179 user-specific message (i.e. there was only a "system" message), nothing was
3180 put in $acl_verify_message. In this situation, it now puts the system
3181 message there.
3182
00f00ca5
PH
318371. Change 4.23/11 added synchronization checking at the start of an SMTP
3184 session; change 4.31/43 added the unwanted input to the log line - except
3185 that it did not do this in the start of session case. It now does.
3186
c9bdd01c
PH
318772. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3188 This is wrong and can cause the other end to generate a synchronization
3189 error if it is another Exim or anything else that does the synchronization
3190 check. A QUIT command is no longer sent after a timeout.
3191
d43194df
PH
319273. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3193 during host lookups.
3194
fe5b5d0b
PH
319574. The defer_ok option of callout verification was not working if it was used
3196 when verifying addresses in header lines, that is, for this case:
3197
3198 verify = header_sender/callout=defer_ok
3199
76a2d7ba
PH
320075. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3201 those file descriptors could be used for SMTP connections. If anything
3202 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3203 could be sent to the SMTP client, causing chaos. The daemon now opens
3204 stdin, stdout, and stderr to /dev/null when it puts itself into the
3205 background.
3206
320776. Arrange for output from Perl's "warn" command to be written to Exim's main
3208 log by default. The user can override this with suitable Perl magic.
3209
04f7d5b9
PH
321077. The use of log_message on a "discard" ACL verb, which is supposed to add to
3211 the log message when discard triggers, was not working for the DATA ACL or
3212 for the non-SMTP ACL.
3213
bc60667e
PH
321478. Error message wording change in sieve.c.
3215
bb6e88ff
PH
321679. If smtp_accept_max_per_host was set, the number of connections could be
3217 restricted to fewer than expected, because the daemon was trying to set up
3218 a new connection before checking whether the processes handling previous
3219 connections had finished. The check for completed processes is now done
3220 earlier. On busy systems, this bug wouldn't be noticed because something
3221 else would have woken the daemon, and it would have reaped the completed
3222 process earlier.
3223
1e70f85b
PH
322480. If a message was submitted locally by a user whose login name contained one
3225 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3226 It caused a spool format error. I have fixed the spool reading code. A
3227 related problem was that the "from" clause in the Received: line became
3228 illegal because of the space(s). It is now covered by ${quote_local_part.
3229
323081. Included the latest eximstats from Steve (adds average sizes to HTML Top
3231 tables).
3232
4e01f9d6
PH
323382. Updated OS/Makefile-AIX as per message from Mike Meredith.
3234
1ee1cef2
PH
323583. Patch from Sieve maintainer to fix unterminated string problem in
3236 "vacation" handling.
3237
6e2b4ccc
PH
323884. Some minor changes to the Linux configuration files to help with other
3239 OS variants using glibc.
3240
8e669ac1
PH
324185. One more patch for Sieve to update vacation handling to latest spec.
3242
495ae4b0 3243
bbe902f0
PH
3244----------------------------------------------------
3245See the note above about the 4.44 and 4.50 releases.
3246----------------------------------------------------
3247
3248
3249Exim version 4.44
3250-----------------
3251
3252 1. Change 4.43/35 introduced a bug that caused file counts to be
3253 incorrectly computed when quota_filecount was set in an appendfile
3254 transport
3255
3256 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3257 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3258 place.
3259
3260 3. Give more explanation in the error message when the command for a transport
3261 filter fails to execute.
3262
3263 4. There are several places where Exim runs a non-Exim command in a
3264 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3265 was being done only for the command run by the queryprogram router. It is
3266 now done for all such subprocesses. The other cases are: ${run, transport
3267 filters, and the commands run by the lmtp and pipe transports.
3268
3269 5. Some older OS have a limit of 256 on the maximum number of file
3270 descriptors. Exim was using setrlimit() to set 1000 as a large value
3271 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3272 systems. I've change it so that if it can't get 1000, it tries for 256.
3273
3274 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3275 was an oversight, and furthermore, ever since the addition of extra
3276 controls (e.g. 4.43/32), the checks on when to allow different forms of
3277 "control" were broken. There should now be diagnostics for all cases when a
3278 control that does not make sense is encountered.
3279
3280 7. $recipients is now available in the predata ACL (oversight).
3281
3282 8. Tidy the search cache before the fork to do a delivery from a message
3283 received from the command line. Otherwise the child will trigger a lookup
3284 failure and thereby defer the delivery if it tries to use (for example) a
3285 cached ldap connection that the parent has called unbind on.
3286
3287 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3288 of $address_data from the recipient verification was clobbered by the
3289 sender verification.
3290
329110. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3292 was its contents. (It was OK if the option was not defined at all.)
3293
329411. A "Completed" log line is now written for messages that are removed from
3295 the spool by the -Mrm option.
3296
329712. $host_address is now set to the target address during the checking of
3298 ignore_target_hosts.
3299
330013. When checking ignore_target_hosts for an ipliteral router, no host name was
3301 being passed; this would have caused $sender_host_name to have been used if
3302 matching the list had actually called for a host name (not very likely,
3303 since this list is usually IP addresses). A host name is now passed as
3304 "[x.x.x.x]".
3305
330614. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3307 code that specifies a non-restarting handler (typically sigaction() in
3308 modern systems) in an attempt to fix a rare and obscure crash bug.
3309
331015. Narrowed the window for a race in the daemon that could cause it to ignore
3311 SIGCHLD signals. This is not a major problem, because they are used only to
3312 wake it up if nothing else does.
3313
331416. A malformed maildirsize file could cause Exim to calculate negative values
3315 for the mailbox size or file count. Odd effects could occur as a result.
3316 The maildirsize information is now recalculated if the size or filecount
3317 end up negative.
3318
331917. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3320 support for a long time. Removed HAVE_SYS_VFS_H.
3321
ea3a6f44 332218. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3323
332419. Allow an empty sender to be matched against a lookup in an address list.
3325 Previously the only cases considered were a regular expression, or an
3326 empty pattern.
3327
332820. Exim went into a mad DNS lookup loop when doing a callout where the
3329 host was specified on the transport, if the DNS lookup yielded more than
3330 one IP address.
3331
ea3a6f44
NM
333221. The RFC2047 encoding function was originally intended for short strings
3333 such as real names; it was not keeping to the 75-character limit for
3334 encoded words that the RFC imposes. It now respects the limit, and
3335 generates multiple encoded words if necessary. To be on the safe side, I
3336 have increased the buffer size for the ${rfc2047: expansion operator from
3337 1024 to 2048 bytes.
bbe902f0 3338
ea3a6f44
NM
333922. Failure to deliver a bounce message always caused it to be frozen, even if
3340 there was an errors_to setting on the router. The errors_to setting is now
3341 respected.
bbe902f0
PH
3342
334323. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3344 canonical form (fully expanded) before being placed in
3345 $sender_host_address.
3346
334724. Updated eximstats to version 1.33
3348
ea3a6f44
NM
334925. Include certificate and key file names in error message when GnuTLS fails
3350 to set them up, because the GnuTLS error message doesn't include the name
3351 of the failing file when there is a problem reading it.
bbe902f0
PH
3352
335326. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3354 As per change 25.
bbe902f0 3355
ea3a6f44
NM
335627. Reset the locale to "C" after calling embedded Perl, in case it was changed
3357 (this can affect the format of dates).
bbe902f0 3358
ea3a6f44
NM
335928. exim_tidydb, when checking for the continued existence of a message for
3360 which it has found a message-specific retry record, was not finding
3361 messages that were in split spool directories. Consequently, it was
3362 deleting retry records that should have stayed in existence.
bbe902f0
PH
3363
336429. eximstats updated to version 1.35
3365 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3366 1.35 - bugfix such that pie charts by volume are generated correctly
3367
ea3a6f44
NM
336830. The SPA authentication driver was not abandoning authentication and moving
3369 on to the next authenticator when an expansion was forced to fail,
3370 contradicting the general specification for all authenticators. Instead it
3371 was generating a temporary error. It now behaves as specified.
bbe902f0 3372
ea3a6f44
NM
337331. The default ordering of permitted cipher suites for GnuTLS was pessimal
3374 (the order specifies the preference for clients). The order is now AES256,
3375 AES128, 3DES, ARCFOUR128.
bbe902f0 3376
ea3a6f44
NM
337731. Small patch to Sieve code - explicitly set From: when generating an
3378 autoreply.
bbe902f0 3379
ea3a6f44
NM
338032. Exim crashed if a remote delivery caused a very long error message to be
3381 recorded - for instance if somebody sent an entire SpamAssassin report back
3382 as a large number of 550 error lines. This bug was coincidentally fixed by
3383 increasing the size of one of Exim's internal buffers (big_buffer) that
3384 happened as part of the Exiscan merge. However, to be on the safe side, I
3385 have made the code more robust (and fixed the comments that describe what
3386 is going on).
bbe902f0 3387
ea3a6f44
NM
338833. Some experimental protocols are using DNS PTR records for new purposes. The
3389 keys for these records are domain names, not reversed IP addresses. The
3390 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3391 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3392 CAN-2005-0021
3393
ea3a6f44
NM
339434. The host_aton() function is supposed to be passed a string that is known
3395 to be a valid IP address. However, in the case of IPv6 addresses, it was
3396 not checking this. This is a hostage to fortune. Exim now panics and dies
3397 if the condition is not met. A case was found where this could be provoked
3398 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3399 components; fortuitously, this particular loophole had already been fixed
3400 by change 4.50/55 or 4.44/33 above.
3401
3402 If there are any other similar loopholes, the new check in host_aton()
3403 itself should stop them being exploited. The report I received stated that
3404 data on the command line could provoke the exploit when Exim was running as
3405 exim, but did not say which command line option was involved. All I could
3406 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3407 running as the user.
bbe902f0
PH
3408 CAN-2005-0021
3409
ea3a6f44
NM
341035. There was a buffer overflow vulnerability in the SPA authentication code