exiwhat: Ensure the SIGUSR1 signal handler is safe.
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
5dc43717 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.632 2010/06/12 15:21:25 jetmore Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
867fcbf5
PP
6Exim version 4.77
7-----------------
8
9PP/01 Solaris build fix for Oracle's LDAP libraries.
10 Bugzilla 1109, patch from Stephen Usher.
11
f1a29782
TF
12TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
13
ab42bd23
TK
14TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
15 whitespace trailer
867fcbf5 16
0ca0cf52
TF
17TF/02 Fix a couple more cases where we did not log the error message
18 when unlink() failed. See also change 4.74-TF/03.
19
921b12ca
TF
20TF/03 Make the exiwhat support code safe for signals. Previously Exim might
21 lock up or crash if it happened to be inside a call to libc when it
22 got a SIGUSR1 from exiwhat.
23
24 The SIGUSR1 handler appends the current process status to the process
25 log which is later printed by exiwhat. It used to use the general
26 purpose logging code to do this, but several functions it calls are
27 not safe for signals.
28
29 The new output code in the SIGUSR1 handler is specific to the process
30 log, and simple enough that it's easy to inspect for signal safety.
31 Removing some special cases also simplifies the general logging code.
32 Removing the spurious timestamps from the process log simplifies
33 exiwhat.
34
0ca0cf52 35
10906672
PP
36Exim version 4.76
37-----------------
38
39PP/01 The new ldap_require_cert option would segfault if used. Fixed.
40
754a0503
PP
41PP/02 Harmonised TLS library version reporting; only show if debugging.
42 Layout now matches that introduced for other libraries in 4.74 PP/03.
43
c0c7b2da
PP
44PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
45
e97d1f08
PP
46PP/04 New "dns_use_edns0" global option.
47
084c1d8c
PP
48PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
49 Bugzilla 1098.
50
4e7ee012
PP
51PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
52 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 53
c8d52a00
PP
54TK/01 Updated PolarSSL code to 0.14.2.
55 Bugzilla 1097. Patch from Andreas Metzler.
56
54e7ce4a
PP
57PP/07 Catch divide-by-zero in ${eval:...}.
58 Fixes bugzilla 1102.
59
5ee6f336
PP
60PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
61 Bugzilla 1104.
62
c8d52a00 63TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
64 format-string attack -- SECURITY: remote arbitrary code execution.
65
66TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
67 time unintentionally subject to list matching rules, letting the header
68 cause arbitrary Exim lookups (of items which can occur in lists, *not*
69 arbitrary string expansion). This allowed for information disclosure.
70
71PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
72 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 73
10906672 74
aa097c4c
NM
75Exim version 4.75
76-----------------
77
4c9ef03a 78NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
79 Bugzilla 1073
80
7f3d9eff
TF
81TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
82 This fixes portability to compilers other than gcc, notably
83 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
84
159f52d2
TF
85TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
86 makefiles for portability to HP-UX and POSIX correctness.
87
0cc9542a
PP
88PP/01 Permit LOOKUP_foo enabling on the make command-line.
89 Also via indented variable definition in the Makefile.
90 (Debugging by Oliver Heesakkers).
91
f7274286
PP
92PP/02 Restore caching of spamd results with expanded spamd_address.
93 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
94
7b797365
PP
95PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
96 Improves build reliability. Fix from: Frank Elsner
97
caacae52
NM
98NM/02 Fix wide character breakage in the rfc2047 coding
99 Fixes bug 1064. Patch from Andrey N. Oktyabrski
100
09dcaba9
NM
101NM/03 Allow underscore in dnslist lookups
102 Fixes bug 1026. Patch from Graeme Fowler
103
bc19a55b
PP
104PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
105 Code patches from Adam Ciarcinski of NetBSD.
caacae52 106
bd4c9759
NM
107NM/04 Fixed exiqgrep to cope with mailq missing size issue
108 Fixes bug 943.
109
b72aab72
PP
110PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
111 is logged, to avoid truncation. Patch from John Horne.
112
2fe76745
PP
113PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
114 Patch from Jakob Hirsch.
115
76aa570c
PP
116PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
117 SQL string expansion failure details.
118 Patch from Andrey Oktyabrski.
119
f1e5fef5
PP
120PP/08 Bugzilla 486: implement %M datestamping in log filenames.
121 Patch from Simon Arlott.
122
4d805ee9
PP
123PP/09 New lookups functionality failed to compile on old gcc which rejects
124 extern declarations in function scope.
125 Patch from Oliver Fleischmann
126
cd59ab18
PP
127PP/10 Use sig_atomic_t for flags set from signal handlers.
128 Check getgroups() return and improve debugging.
129 Fixed developed for diagnosis in bug 927 (which turned out to be
130 a kernel bug).
131
332f5cf3
PP
132PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
133 Patch from Mark Zealey.
134
29cfeb94
PP
135PP/12 Bugzilla 1056: Improved spamd server selection.
136 Patch from Mark Zealey.
137
660242ad
PP
138PP/13 Bugzilla 1086: Deal with maildir quota file races.
139 Based on patch from Heiko Schlittermann.
140
bc4bc4c5
PP
141PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
142 Patch from Uwe Doering, sign-off by Michael Haardt.
143
2e64baa9
NM
144NM/05 Fix to spam.c to accommodate older gcc versions which dislike
145 variable declaration deep within a block. Bug and patch from
146 Dennis Davis.
147
bddd7526
PP
148PP/15 lookups-Makefile IRIX compatibilty coercion.
149
6bac1a9a
PP
150PP/16 Make DISABLE_DKIM build knob functional.
151
552193f0
NM
152NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
153 Patch by Simon Arlott
baeee2c1 154
1b587e48
TF
155TF/03 Fix valgrind.h portability to C89 compilers that do not support
156 variable argument macros. Our copy now differs from upstream.
157
aa097c4c 158
8c07b69f
TF
159Exim version 4.74
160-----------------
161
162TF/01 Failure to get a lock on a hints database can have serious
163 consequences so log it to the panic log.
164
c0ea85ab
TF
165TF/02 Log LMTP confirmation messages in the same way as SMTP,
166 controlled using the smtp_confirmation log selector.
167
0761d44e
TF
168TF/03 Include the error message when we fail to unlink a spool file.
169
0a349494
PP
170DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
171 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
172 for maintaining out-of-tree patches for some time.
173
174PP/01 Bugzilla 139: Documentation and portability issues.
175 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
176 Handle per-OS dynamic-module compilation flags.
177
fea24b2e
PP
178PP/02 Let /dev/null have normal permissions.
179 The 4.73 fixes were a little too stringent and complained about the
180 permissions on /dev/null. Exempt it from some checks.
181 Reported by Andreas M. Kirchwitz.
182
6545de78
PP
183PP/03 Report version information for many libraries, including
184 Exim version information for dynamically loaded libraries. Created
185 version.h, now support a version extension string for distributors
186 who patch heavily. Dynamic module ABI change.
187
1670ef10
PP
188PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
189 privilege escalation vulnerability whereby the Exim run-time user
190 can cause root to append content of the attacker's choosing to
191 arbitrary files.
192
c0886197
PP
193PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
194 (Wolfgang Breyha)
195
b7487bce
PP
196PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
197 If dropping privileges for untrusted macros, we disabled normal logging
198 on the basis that it would fail; for the Exim run-time user, this is not
199 the case, and it resulted in successful deliveries going unlogged.
200 Fixed. Reported by Andreas Metzler.
201
8c07b69f 202
97fd1e48 203Exim version 4.73
ed7f7860 204-----------------
97fd1e48
PP
205
206PP/01 Date: & Message-Id: revert to normally being appended to a message,
207 only prepend for the Resent-* case. Fixes regression introduced in
208 Exim 4.70 by NM/22 for Bugzilla 607.
209
6901c596
PP
210PP/02 Include check_rfc2047_length in configure.default because we're seeing
211 increasing numbers of administrators be bitten by this.
212
a8c8d6b5
JJ
213JJ/01 Added DISABLE_DKIM and comment to src/EDITME
214
77bb000f
PP
215PP/03 Bugzilla 994: added openssl_options main configuration option.
216
a29e5231
PP
217PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
218
ec5a0394 219PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 220
55c75993
PP
221PP/06 Adjust NTLM authentication to handle SASL Initial Response.
222
453a6645 223PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
224 without a peer certificate, leading to a segfault because of an
225 assumption that peers always have certificates. Be a little more
453a6645
PP
226 paranoid. Problem reported by Martin Tscholak.
227
8544e77a
PP
228PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
229 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
230 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
231 CL also introduces -bmalware, various -d+acl logging additions and
232 more caution in buffer sizes.
8544e77a 233
83e029d5
PP
234PP/09 Implemented reverse_ip expansion operator.
235
ed7f7860
PP
236PP/10 Bugzilla 937: provide a "debug" ACL control.
237
7d9f747b
PP
238PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
239
4b2241d2
PP
240PP/12 Bugzilla 973: Implement --version.
241
10385c15
PP
242PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
243
dbc4b90d
PP
244PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
245
532be449
PP
246PP/15 Bugzilla 816: support multiple condition rules on Routers.
247
6a8de854 248PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
249 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
250 ignore trailing whitespace.
6a8de854 251
5dc43717
JJ
252JJ/02 prevent non-panic DKIM error from being sent to paniclog
253
254JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
255 "exim" to be used
55c75993 256
3346ab01
PP
257PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
258 Notification from Dr Andrew Aitchison.
259
491fab4c
PP
260PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
261 ExtendedDetectionInfo response format.
262 Notification from John Horne.
263
13eb9497
PP
264PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
265 compatible.
266
267PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
268 XSL and documented dependency on system catalogs, with examples of how
269 it normally works.
270
7f36d675
DW
271DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
272 access.
273
c1d94452
DW
274DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
275 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
276 configuration file which is writeable by the Exim user or group.
277
e2f5dc15
DW
278DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
279 of configuration files to cover files specified with the -C option if
280 they are going to be used with root privileges, not just the default
281 configuration file.
282
cd25e41d
DW
283DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
284 option (effectively making it always true).
285
261dc43e
DW
286DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
287 files to be used while preserving root privileges.
288
fa32850b
DW
289DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
290 that rogue child processes cannot use them.
291
79d4bc3d
PP
292PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
293 run-time user, instead of root.
294
43236f35 295PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
296 Exim run-time user without dropping privileges.
297
fb08281f
DW
298DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
299 result string, instead of calling string_vformat() twice with the same
300 arguments.
3346ab01 301
74935b98
DW
302DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
303 for other users. Others should always drop root privileges if they use
304 -C on the command line, even for a whitelisted configure file.
305
90b6341f
DW
306DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
307
57730b52
ML
308NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
309
66581d1e 310
465e92cf
JJ
311Exim version 4.72
312-----------------
313
453a6645
PP
314JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
315 $data_path, and $header_path variables; fixed documentation bugs and
316 typos
465e92cf 317
453a6645
PP
318JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
319 exipick to access non-standard spools, including the "frozen" queue
320 (Finput)
edae0343 321
9bd3e22c
NM
322NM/01 Bugzilla 965: Support mysql stored procedures.
323 Patch from Alain Williams
324
bb576ff7
NM
325NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
326
5a1a5845
NM
327NM/03 Bugzilla 955: Documentation fix for max_rcpts.
328 Patch from Andreas Metzler
329
981a9fad
NM
330NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
331 Patch from Kirill Miazine
332
7fc497ee
NM
333NM/05 Bugzilla 671: Added umask to procmail example.
334
1a41defa
JJ
335JJ/03 installed exipick 20100323.0, fixing doc bug
336
a466095c 337NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 338 directory. Notification and patch from Dan Rosenberg.
a466095c 339
94a6bd0b
NM
340TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
341
342TK/02 Improve log output when DKIM signing operation fails.
343
344MH/01 Treat the transport option dkim_domain as a colon separated
345 list, not as a single string, and sign the message with each element,
346 omitting multiple occurences of the same signer.
347
c1b141a8
NM
348NM/07 Null terminate DKIM strings, Null initialise DKIM variable
349 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 350
b26eacf1 351NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
352 Patch by Simon Arlott
353
179c5980 354PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 355 MBX locking. Notification from Dan Rosenberg.
179c5980 356
9bd3e22c 357
7c6d71af
NM
358Exim version 4.71
359-----------------
360
7d9f747b 361TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 362
f013fb92
NM
363NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
364
0eb8eedd
NM
365NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
366
663ee6d9
NM
367NM/03 Bugzilla 847: Enable DNSDB lookup by default.
368
177ebd9b
NM
369NM/04 Bugzilla 915: Flag broken perl installation during build.
370
7c6d71af 371
210f147e
NM
372Exim version 4.70
373-----------------
374
cdd3bb85 375TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 376 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
377
378TK/02 Write list of recipients to X-Envelope-Sender header when building
379 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 380 Hirsch).
cdd3bb85
TK
381
382TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
383 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 384 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
385
386TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
387 by Mark Daniel Reidel <mr@df.eu>.
388
210f147e
NM
389NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
390 When building exim an external PCRE library is now needed -
391 PCRE is a system library on the majority of modern systems.
392 See entry on PCRE_LIBS in EDITME file.
393
deafd5b3
NM
394NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
395 conversation. Added nologin parameter to request.
7d9f747b 396 Patch contributed by Kirill Miazine.
deafd5b3 397
089793a4
TF
398TF/01 Do not log submission mode rewrites if they do not change the address.
399
5f16ca82
TF
400TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
401
dae9d94e 402NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 403 log files in place. Contributed by Roberto Lima.
dae9d94e 404
7d9f747b 405NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 406
06864c44
TF
407TF/03 Bugzilla 615: When checking the local_parts router precondition
408 after a local_part_suffix or local_part_prefix option, Exim now
409 does not use the address's named list lookup cache, since this
410 contains cached lookups for the whole local part.
411
65a7d8c3 412NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 413 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 414
23510047 415TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 416
7d9f747b 417NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 418
7d8eec3a 419NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 420 Patch provided by Jan Srzednicki.
6c588e74 421
89dec7b6
TF
422TF/05 Leading white space used to be stripped from $spam_report which
423 wrecked the formatting. Now it is preserved.
5f28a6e8 424
a99de90c
TF
425TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
426 that they are available at delivery time.
427
e2803e40
TF
428TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
429
7199e1ee
TF
430TF/08 TLS error reporting now respects the incoming_interface and
431 incoming_port log selectors.
432
e276e04b
TF
433TF/09 Produce a more useful error message if an SMTP transport's hosts
434 setting expands to an empty string.
435
ce552449 436NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 437 Patch provided by Phil Pennock.
ce552449 438
e765a0f1 439NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 440 Patch provided by Richard Godbee.
e765a0f1 441
4f054c63 442NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 443 acl_smtp_notquit, added index entry.
4f054c63 444
7d9f747b
PP
445NM/09 Bugzilla 787: Potential buffer overflow in string_format.
446 Patch provided by Eugene Bujak.
24c929a2 447
7d9f747b
PP
448NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
449 accept(). Patch provided by Maxim Dounin.
cf73943b 450
b52bc06e 451NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 452 Patch provided by Phil Pennock.
b52bc06e 453
447de4b0
NM
454NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
455
4c69d561 456NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 457 Patch provided by Brad "anomie" Jorsch.
4c69d561 458
d5c39246 459NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 460 Patch provided by Dean Brooks.
9b989985 461
0b23848a
TK
462TK/05 Add native DKIM support (does not depend on external libraries).
463
8f3414a1 464NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 465 Patch provided by Graeme Fowler.
e2aacdfd 466
fb6f955d
NM
467NM/16 Bugzilla 851: Documentation example syntax fix.
468
469NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 470
7d9f747b
PP
471NM/18 Bugzilla 894: Fix issue with very long lines including comments in
472 lsearch.
dbb0bf41 473
7d9f747b
PP
474NM/19 Bugzilla 745: TLS version reporting.
475 Patch provided by Phil Pennock.
f3766eb5 476
7d9f747b
PP
477NM/20 Bugzilla 167: bool: condition support.
478 Patch provided by Phil Pennock.
36f12725 479
7d9f747b
PP
480NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
481 clients. Patch provided by Phil Pennock.
e6060e2c 482
7d9f747b
PP
483NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
484 Patch provided by Brad "anomie" Jorsch.
5eb690a1 485
7d9f747b
PP
486NM/23 Bugzilla 687: Fix misparses in eximstats.
487 Patch provided by Heiko Schlittermann.
d5c13d66 488
7d9f747b
PP
489NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
490 Patch provided by Heiko Schlittermann.
b2335c0b 491
7d9f747b 492NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 493 plus update to original patch.
f4cd9433 494
7d9f747b 495NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 496
7d9f747b
PP
497NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
498 Patch provided by David Brownlee.
8dc71ab3 499
7d9f747b 500NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 501
7d9f747b 502NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 503
7d9f747b 504NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 505
7d9f747b 506NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 507
17792b53 508NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 509 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 510
7d9f747b
PP
511NM/33 Bugzilla 898: Transport filter timeout fix.
512 Patch by Todd Rinaldo.
52383f8f 513
7d9f747b
PP
514NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
515 Patch by Serge Demonchaux.
5ca6d115 516
7d9f747b
PP
517NM/35 Bugzilla 39: Base64 decode bug fixes.
518 Patch by Jakob Hirsch.
baee9eee 519
7d9f747b 520NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 521
7d9f747b 522NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 523
7d9f747b 524NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 525
7d9f747b 526NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 527
deafd5b3 528
47db1125
NM
529Exim version 4.69
530-----------------
531
4b3504d0
TK
532TK/01 Add preliminary DKIM support. Currently requires a forked version of
533 ALT-N's libdkim that I have put here:
534 http://duncanthrax.net/exim-experimental/
535
536 Note to Michael Haardt: I had to rename some vars in sieve.c. They
537 were called 'true' and it seems that C99 defines that as a reserved
538 keyword to be used with 'bool' variable types. That means you could
539 not include C99-style headers which use bools without triggering
540 build errors in sieve.c.
541
81ea09ca
NM
542NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
543 as mailq or other aliases. Changed the --help handling significantly
544 to do whats expected. exim_usage() emits usage/help information.
545
f13cddcb
SC
546SC/01 Added the -bylocaldomain option to eximstats.
547
7d9f747b 548NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 549
7d9f747b 550NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 551
7d9f747b 552NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
553
554
eb4c0de6
PH
555Exim version 4.68
556-----------------
557
558PH/01 Another patch from the Sieve maintainer.
559
6a3bceb1
PH
560PH/02 When an IPv6 address is converted to a string for single-key lookup
561 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
562 dots are used instead of colons so that keys in lsearch files need not
563 contain colons. This was done some time before quoting was made available
564 in lsearch files. However, iplsearch files do require colons in IPv6 keys
565 (notated using the quote facility) so as to distinguish them from IPv4
566 keys. This meant that lookups for IP addresses in host lists did not work
567 for iplsearch lookups.
568
569 This has been fixed by arranging for IPv6 addresses to be expressed with
570 colons if the lookup type is iplsearch. This is not incompatible, because
571 previously such lookups could never work.
572
573 The situation is now rather anomolous, since one *can* have colons in
574 ordinary lsearch keys. However, making the change in all cases is
575 incompatible and would probably break a number of configurations.
576
2e30fa9d
TK
577TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
578 version.
579
0806a9c5
MH
580MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
581 conversion specification without a maximum field width, thereby enabling
582 a rogue spamd server to cause a buffer overflow. While nobody in their
583 right mind would setup Exim to query an untrusted spamd server, an
584 attacker that gains access to a server running spamd could potentially
585 exploit this vulnerability to run arbitrary code as the Exim user.
586
ae276964
TK
587TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
588 $primary_hostname instead of what libspf2 thinks the hosts name is.
589
0f2cbd1b
MH
590MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
591 a directory entry by the name of the lookup key. Previously, if a
592 symlink pointed to a non-existing file or a file in a directory that
593 Exim lacked permissions to read, a lookup for a key matching that
594 symlink would fail. Now it is enough that a matching directory entry
595 exists, symlink or not. (Bugzilla 503.)
596
2b85bce7
PH
597PH/03 The body_linecount and body_zerocount variables are now exported in the
598 local_scan API.
599
93655c46
PH
600PH/04 Added the $dnslist_matched variable.
601
6c512171
PH
602PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
603 This means they are set thereafter only if the connection becomes
604 encrypted.
605
606PH/06 Added the client_condition to authenticators so that some can be skipped
607 by clients under certain conditions.
608
aa6dc513
PH
609PH/07 The error message for a badly-placed control=no_multiline_responses left
610 "_responses" off the end of the name.
611
a96603a0
PH
612PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
613
8f240103
PH
614PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
615 (without spaces) instead of just copying the configuration text.
616
617PH/10 Added the /noupdate option to the ratelimit ACL condition.
618
d677b2f2
PH
619PH/11 Added $max_received_linelength.
620
d52120f2
PH
621PH/12 Added +ignore_defer and +include_defer to host lists.
622
64f2600a
PH
623PH/13 Installed PCRE version 7.2. This needed some changes because of the new
624 way in which PCRE > 7.0 is built.
625
8669f003
PH
626PH/14 Implemented queue_only_load_latch.
627
a4dc33a8
PH
628PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
629 MAIL command. The effect was to mangle the value on 64-bit systems.
630
d6a60c0f
PH
631PH/16 Another patch from the Sieve maintainer.
632
8f128379
PH
633PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
634
8932dffe
PH
635PH/18 If a system quota error occurred while trying to create the file for
636 a maildir delivery, the message "Mailbox is full" was not appended to the
637 bounce if the delivery eventually timed out. Change 4.67/27 below applied
638 only to a quota excession during the actual writing of the file.
d6a60c0f 639
ddea74fa 640PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
641 characters?) which causes problems in log lines. The DN values are now
642 passed through string_printing() before being added to log lines.
643
ddea74fa 644PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
645 and InterBase are left for another time.)
646
ddea74fa
PH
647PH/21 Added message_body_newlines option.
648
ce9f225c
PH
649PH/22 Guard against possible overflow in moan_check_errorcopy().
650
19897d52
PH
651PH/23 POSIX allows open() to be a macro; guard against that.
652
bc64a74d
PH
653PH/24 If the recipient of an error message contained an @ in the local part
654 (suitably quoted, of course), incorrect values were put in $domain and
655 $local_part during the evaluation of errors_copy.
656
eb4c0de6 657
b4ed4da0
PH
658Exim version 4.67
659-----------------
660
22ad45c9
MH
661MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
662 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
663 Jan Srzednicki.
664
b4ed4da0
PH
665PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
666 issue a MAIL command.
667
431b7361
PH
668PH/02 In an ACL statement such as
669
670 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
671
672 if a client was not listed at all, or was listed with a value other than
673 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
674 the condition was not true (as it should be), so access was not denied.
675 The bug was that the ! inversion was incorrectly passed on to the second
676 item. This has been fixed.
677
678PH/03 Added additional dnslists conditions == and =& which are different from
679 = and & when the dns lookup returns more than one IP address.
680
83da1223
PH
681PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
682 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
683
54fc8428
PH
684PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
685 FSYNC, which compiles an option called disable_fsync that allows for
686 bypassing fsync(). The documentation is heavily laced with warnings.
687
34c5e8dd
SC
688SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
689
bbe15da8
PH
690PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
691 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
692 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
693 including adding "make clean"; (3) Added -fPIC when compiling the test
694 dynamically loaded module, to get rid of a warning.
695
0e8a9471
MH
696MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
697 message fails, move_frozen_messages = true and ignore_bounce_errors_after
698 = 0s. The bug is otherwise harmless.
699
f0872424
PH
700PH/07 There was a bug in the dovecot authenticator such that the value of
701 $auth1 could be overwritten, and so not correctly preserved, after a
702 successful authentication. This usually meant that the value preserved by
703 the server_setid option was incorrect.
704
b01dd148
PH
705PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
706
6bf342e1
PH
707PH/09 Installed PCRE release 7.0.
708
273f34d0
PH
709PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
710 run for batched SMTP input. It is now run at the start of every message
711 in the batch. While fixing this I discovered that the process information
712 (output by running exiwhat) was not always getting set for -bs and -bS
713 input. This is fixed, and it now also says "batched" for BSMTP.
714
cf8b11a5
PH
715PH/11 Added control=no_pipelining.
716
41c7c167
PH
717PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
718 patch, slightly modified), and move the expansion of helo_data till after
719 the connection is made in the smtp transport (so it can use these
720 values).
721
9c57cbc0
PH
722PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
723
f3f065bb
PH
724PH/14 Added log_selector = +pid.
725
047bdd8c
PH
726PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
727
0ce9abe6
PH
728PH/16 Add ${if forany and ${if forall.
729
0e22dfd1
PH
730PH/17 Added dsn_from option to vary the From: line in DSNs.
731
4c590bd1
PH
732PH/18 Flush SMTP output before performing a callout, unless control =
733 no_callout_flush is set.
734
09945f1e
PH
735PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
736 was true (the default) a successful delivery failed to delete the retry
737 item, thus causing premature timeout of the address. The bug is now
738 fixed.
739
c51b8e75
PH
740PH/20 Added hosts_avoid_pipelining to the smtp transport.
741
e28326d8
PH
742PH/21 Long custom messages for fakedefer and fakereject are now split up
743 into multiline reponses in the same way that messages for "deny" and
744 other ACL rejections are.
745
75b1493f
PH
746PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
747 with slight modification.
748
7c5214ec
PH
749PH/23 Applied sieve patches from the maintainer "tracking the latest notify
750 draft, changing the syntax and factoring some duplicate code".
751
4311097e
PH
752PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
753 for deliveries of the second and subsequent messages over the same SMTP
754 connection.
755
29f89cad
PH
756PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
757 ${reduce, with only minor "tidies".
758
5e687460
SC
759SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
760
c3611384
PH
761PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
762 expansion side effects.
763
5a11a7b4
PH
764PH/27 When a message times out after an over-quota error from an Exim-imposed
765 quota, the bounce message says "mailbox is full". This message was not
766 being given when it was a system quota that was exceeded. It now should
767 be the same.
768
0e20aff9
MH
769MH/03 Made $recipients available in local_scan(). local_scan() already has
770 better access to the recipient list through recipients_list[], but
771 $recipients can be useful in postmaster-provided expansion strings.
772
ca86f471
PH
773PH/28 The $smtp_command and $smtp_command_argument variables were not correct
774 in the case of a MAIL command with additional options following the
775 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
776 were accidentally chopped off.
777
a14e5636
PH
778PH/29 SMTP synchronization checks are implemented when a command is read -
779 there is a check that no more input is waiting when there shouldn't be
780 any. However, for some commands, a delay in an ACL can mean that it is
781 some time before the response is written. In this time, more input might
782 arrive, invalidly. So now there are extra checks after an ACL has run for
783 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
784 pipelining has not been advertised.
785
ec95d1a6
PH
786PH/30 MH's patch to allow iscntrl() characters to be list separators.
787
42855d71
PH
788PH/31 Unlike :fail:, a custom message specified with :defer: was not being
789 returned in the SMTP response when smtp_return_error_details was false.
790 This has been fixed.
791
57c2c631
PH
792PH/32 Change the Dovecot authenticator to use read() and write() on the socket
793 instead of the C I/O that was originally supplied, because problems were
794 reported on Solaris.
795
58c01c94
PH
796PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
797 Exim which did not show up earlier: it was assuming that a call to
798 SSL_CTX_set_info_callback() might give an error value. In fact, there is
799 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
800 was a macro that became an assignment, so it seemed to work. This has
801 changed to a proper function call with a void return, hence the compile
802 error. Exim's code has been fixed.
803
dee5a20a
PH
804PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
805 cpus.
806
d2ee6114
PH
807PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
808
b2d5182b
PH
809PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
810
79749a79
PH
811PH/37 If a message is not accepted after it has had an id assigned (e.g.
812 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
813 "Completed" line in the log. When some messages of this type were
814 selected by exigrep, they were listed as "not completed". Others were
815 picked up by some special patterns. I have improved the selection
816 criteria to be more general.
79749a79 817
c456d9bb
PH
818PH/38 The host_find_failed option in the manualroute router can now be set
819 to "ignore", to completely ignore a host whose IP address cannot be
820 found. If all hosts are ignored, the behaviour is controlled by the new
821 host_all_ignored option.
822
cd9868ec
PH
823PH/39 In a list of hosts for manualroute, if one item (either because of multi-
824 homing or because of multiple MX records with /mx) generated more than
825 one IP address, and the following item turned out to be the local host,
826 all the secondary addresses of the first item were incorrectly removed
827 from the list, along with the local host and any following hosts (which
828 is what is supposed to happen).
829
ebeaf996
PH
830PH/40 When Exim receives a message, it writes the login name, uid, and gid of
831 whoever called Exim into the -H file. In the case of the daemon it was
832 behaving confusingly. When first started, it used values for whoever
833 started the daemon, but after a SIGHUP it used the Exim user (because it
834 calls itself on a restart). I have changed the code so that it now always
835 uses the Exim user.
836
2679d413
PH
837PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
838 message are rejected with the same error (e.g. no authentication or bad
839 sender address), and a DATA command is nevertheless sent (as can happen
840 with PIPELINING or a stupid MUA), the error message that was given to the
841 RCPT commands is included in the rejection of the DATA command. This is
842 intended to be helpful for MUAs that show only the final error to their
843 users.
844
84024b72
PH
845PH/42 Another patch from the Sieve maintainer.
846
8005d38e
SC
847SC/02 Eximstats - Differentiate between permanent and temporary rejects.
848 Eximstats - Fixed some broken HTML links and added missing column headers
849 (Jez Hancock).
850 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
851 columns for Rejects, Temp Rejects, Ham, and Spam rows.
852
3298c6c6
SC
853SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
854
a43a27c5
PH
855PH/43 Yet another patch from the Sieve maintainer.
856
58eb016e 857PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
858 the response to the final '.' that terminates a message, but only in the
859 case where the client has not sent further data following the '.'
860 (unfortunately, this is allowed). However, in many cases there won't be
861 any further data because there won't be any more messages to send. A call
862 to select() can be used: if it shows that the input is "ready", there is
863 either input waiting, or the socket has been closed. An attempt to read
864 the next input character can distinguish the two cases. Previously, Exim
58eb016e 865 would have sent an OK response which the client would never have see.
563b63fa
PH
866 This could lead to message repetition. This fix should cure that, at
867 least in a lot of common cases.
58eb016e 868
b43a74ea
PH
869PH/45 Do not advertise STARTTLS in response to HELP unless it would be
870 advertised in response to EHLO.
871
b4ed4da0 872
5dd1517f
PH
873Exim version 4.66
874-----------------
875
876PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
877 fixed by 4.65/MH/01 (is this a record?) are fixed:
878
879 (i) An empty string was always treated as zero by the numeric comparison
880 operators. This behaviour has been restored.
881
882 (ii) It is documented that the numeric comparison operators always treat
883 their arguments as decimal numbers. This was broken in that numbers
884 starting with 0 were being interpreted as octal.
885
886 While fixing these problems I realized that there was another issue that
887 hadn't been noticed. Values of message_size_limit (both the global option
888 and the transport option) were treated as octal if they started with 0.
889 The documentation was vague. These values are now always treated as
890 decimal, and I will make that clear in the documentation.
891
892
93cfa765
TK
893Exim version 4.65
894-----------------
895
896TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
897 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
898 versions. (#438)
899
d6066548
MH
900MH/01 Don't check that the operands of numeric comparison operators are
901 integers when their expansion is in "skipping" mode (fixes bug
902 introduced by 4.64-PH/07).
903
4362ff0d
PH
904PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
905 child addresses, Exim now panics and dies. Previously, because the count
906 is held in a short int, deliveries were likely to be lost. As such a
907 large number of recipients for a single message is ridiculous
908 (performance will be very, very poor), I have chosen to impose a limit
909 rather than extend the field.
910
93cfa765 911
944e9e9c
TF
912Exim version 4.64
913-----------------
aa41d2de 914
21d74bd9
TK
915TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
916 leftover -K file (the existence of which was triggered by #402).
917 While we were at it, introduced process PID as part of the -K
918 filename. This should rule out race conditions when creating
919 these files.
920
921TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
922 processing considerably. Previous code took too long for large mails,
923 triggering a timeout which in turn triggers #401.
924
925TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
926 in the DK code in transports.c. sendfile() is not really portable,
927 hence the _LINUX specificness.
944e9e9c
TF
928
929TF/01 In the add_headers option to the mail command in an Exim filter,
930 there was a bug that Exim would claim a syntax error in any
931 header after the first one which had an odd number of characters
932 in the field name.
933
2b1c6e3a
PH
934PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
935 callout verification, Exim cached a "reject" for the entire domain. This
936 is correct for most verifications, but it is not correct for a recipient
937 verification with use_sender or use_postmaster set, because in that case
938 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
939 case of MAIL FROM:<> rejection from other early rejections (e.g.
940 rejection of HELO). When verifying a recipient using a non-null MAIL
941 address, the cache is ignored if it shows MAIL FROM:<> rejection.
942 Whatever the result of the callout, the value of the domain cache is
943 left unchanged (for any other kind of callout, getting as far as trying
944 RCPT means that the domain itself is ok).
945
1f872c80
PH
946PH/02 Tidied a number of unused variable and signed/unsigned warnings that
947 gcc 4.1.1 threw up.
948
949PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
950 manifest itself as EPIPE rather than ECONNECT. When tidying away a
951 session, the daemon ignores ECONNECT errors and logs others; it now
952 ignores EPIPE as well.
953
d203e649
PH
954PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
955 (quoted-printable decoding).
956
cc2ed8f7 957PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 958 later the small subsequent patch to fix an introduced bug.
f951fd57 959
ddfcd446
PH
960PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
961
d45b1de8
PH
962PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
963
964PH/08 An error is now given if message_size_limit is specified negative.
965
38a0a95f 966PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 967 to be given (somewhat) arbitrary names.
38a0a95f 968
a2405d83
JJ
969JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
970 in 4.64-PH/09.
971
972JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
973 miscellaneous code fixes
974
6ea85e9a
PH
975PH/10 Added the log_reject_target ACL modifier to specify where to log
976 rejections.
977
26da7e20
PH
978PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
979 hostname. This is wrong, because it relates to the incoming message (and
980 probably the interface on which it is arriving) and not to the outgoing
981 callout (which could be using a different interface). This has been
982 changed to use the value of the helo_data option from the smtp transport
983 instead - this is what is used when a message is actually being sent. If
984 there is no remote transport (possible with a router that sets up host
985 addresses), $smtp_active_hostname is used.
6ea85e9a 986
14aa5a05 987PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 988 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
989 (a) The code assumed that strncpy() returns a negative number on buffer
990 overflow, which isn't the case. Replaced with Exim's string_format()
991 function.
992 (b) There were several signed/unsigned issues. I just did the minimum
993 hacking in of casts. There is scope for a larger refactoring.
994 (c) The code used strcasecmp() which is not a standard C function.
995 Replaced with Exim's strcmpic() function.
996 (d) The code set only $1; it now sets $auth1 as well.
997 (e) A simple test gave the error "authentication client didn't specify
998 service in request". It would seem that Dovecot has changed its
999 interface. Fortunately there's a specification; I followed it and
1000 changed what the client sends and it appears to be working now.
1001
ff75a1f7
PH
1002PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1003 decoding.
1004
e6f6568e
PH
1005PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1006 address A is aliased to B and C, where B exists and C does not. Without
1007 -v the output is "A verified" because verification stops after a
1008 successful redirection if more than one address is generated. However,
1009 with -v the child addresses are also verified. Exim was outputting "A
1010 failed to verify" and then showing the successful verification for C,
1011 with its parentage. It now outputs "B failed to verify", showing B's
1012 parentage before showing the successful verification of C.
1013
d6f6e0dc
PH
1014PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1015 look up a TXT record in a specific list after matching in a combined
1016 list.
1017
322050c2
PH
1018PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1019 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1020 they consult the DNS. I had assumed they would set it the way they
1021 wanted; and indeed my experiments on Linux seem to show that in some
1022 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1023 To be on the safe side, however, I have now made the interface to
1024 host_find_byname() similar to host_find_bydns(), with an argument
1025 containing the DNS resolver options. The host_find_byname() function now
1026 sets these options at its start, just as host_find_bydns() does. The smtp
1027 transport options dns_qualify_single and dns_search_parents are passed to
1028 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1029 of host_find_byname() use the default settings of RES_DEFNAMES
1030 (qualify_single) but not RES_DNSRCH (search_parents).
1031
08955dd3
PH
1032PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1033 spool_read_header() do less string testing, by means of a preliminary
1034 switch on the second character of optional "-foo" lines. (This is
1035 overdue, caused by the large number of possibilities that now exist.
1036 Originally there were few.) While I was there, I also converted the
1037 str(n)cmp tests so they don't re-test the leading "-" and the first
1038 character, in the hope this might squeeze out yet more improvement.
1039
1eccaa59
PH
1040PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1041 flag allowing group syntax was set by the header_syntax check but not
1042 turned off, possible causing trouble later; (2) The flag was not being
1043 set at all for the header_verify test, causing "group"-style headers to
1044 be rejected. I have now set it in this case, and also caused header_
1045 verify to ignore an empty address taken from a group. While doing this, I
1046 came across some other cases where the code for allowing group syntax
1047 while scanning a header line wasn't quite right (mostly, not resetting
1048 the flag correctly in the right place). These bugs could have caused
1049 trouble for malformed header lines. I hope it is now all correct.
1050
602e59e5
PH
1051PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1052 with the "reply" argument non-NULL. The code, however (which originally
1053 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1054 but it didn't always do it. This confused somebody who was copying the
1055 code for some other use. I have removed all the tests.
1056
411ef850
PH
1057PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1058 feature that was used to support insecure browsers during the U.S. crypto
1059 embargo. It requires special client support, and Exim is probably the
1060 only MTA that supported it -- and would never use it because real RSA is
1061 always available. This code has been removed, because it had the bad
1062 effect of slowing Exim down by computing (never used) parameters for the
1063 RSA_EXPORT functionality.
1064
7befa435
PH
1065PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1066 authenticator to fail if there's a tab character in the incoming data
1067 (there should never be unless someone is messing about, as it's supposed
1068 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1069 if the connection is using TLS or if the remote IP is the same as the
1070 local IP, and the "valid-client-cert option" if a client certificate has
1071 been verified.
1072
48da4259 1073PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1074 authenticators. This can be used for authorization after authentication
1075 succeeds. (In the case of plaintext, it servers for both authentication
1076 and authorization.)
1077
48da4259
PH
1078PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1079 if any retry times were supplied.
1080
d1d5595c
PH
1081PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1082 connection, where there is no client IP address to check. In this
1083 situation, the verify now always succeeds.
1084
0ef732d9
PH
1085PH/25 Applied John Jetmore's -Mset patch.
1086
328895cc
PH
1087PH/26 Added -bem to be like -Mset, but loading a message from a file.
1088
fd700877
PH
1089PH/27 In a string expansion for a processed (not raw) header when multiple
1090 headers of the same name were present, leading whitespace was being
1091 removed from all of them, but trailing whitespace was being removed only
1092 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1093 before concatenation. Completely empty headers in a concatenation (as
1094 before) are ignored.
fd700877 1095
8dce1a6f
PH
1096PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1097 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1098
17af4a17
PH
1099PH/29 [Removed. This was a change that I later backed out, and forgot to
1100 correct the ChangeLog entry (that I had efficiently created) before
1101 committing the later change.]
f6c332bd
PH
1102
1103PH/30 Exim was sometimes attempting to deliver messages that had suffered
1104 address errors (4xx response to RCPT) over the same connection as other
1105 messages routed to the same hosts. Such deliveries are always "forced",
1106 so retry times are not inspected. This resulted in far too many retries
1107 for the affected addresses. The effect occurred only when there were more
1108 hosts than the hosts_max_try setting in the smtp transport when it had
1109 the 4xx errors. Those hosts that it had tried were not added to the list
1110 of hosts for which the message was waiting, so if all were tried, there
1111 was no problem. Two fixes have been applied:
1112
1113 (i) If there are any address or message errors in an SMTP delivery, none
1114 of the hosts (tried or untried) are now added to the list of hosts
1115 for which the message is waiting, so the message should not be a
1116 candidate for sending over the same connection that was used for a
1117 successful delivery of some other message. This seems entirely
1118 reasonable: after all the message is NOT "waiting for some host".
1119 This is so "obvious" that I'm not sure why it wasn't done
1120 previously. Hope I haven't missed anything, but it can't do any
1121 harm, as the worst effect is to miss an optimization.
1122
1123 (ii) If, despite (i), such a delivery is accidentally attempted, the
1124 routing retry time is respected, so at least it doesn't keep
1125 hammering the server.
1126
c1114884
PH
1127PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1128 in ${readsocket because some servers need this prod.
1129
7a0743eb
PH
1130PH/32 Added some extra debug output when updating a wait-xxx database.
1131
0d85fa3f
PH
1132PH/33 The hint "could be header name not terminated by colon", which has been
1133 given for certain expansion errors for a long time, was not being given
1134 for the ${if def:h_colon_omitted{... case.
1135
1bf43b78
PH
1136PH/34 The spec says: "With one important exception, whenever a domain list is
1137 being scanned, $domain contains the subject domain." There was at least
1138 one case where this was not true.
1139
520de300
PH
1140PH/35 The error "getsockname() failed: connection reset by peer" was being
1141 written to the panic log as well as the main log, but it isn't really
1142 panic-worthy as it just means the connection died rather early on. I have
1143 removed the panic log writing for the ECONNRESET error when getsockname()
1144 fails.
1145
48c7f9e2
PH
1146PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1147 runs only) independently of the message's sender address. This meant
1148 that, if the 4xx error was in fact related to the sender, a different
1149 message to the same recipient with a different sender could confuse
1150 things. In particualar, this can happen when sending to a greylisting
1151 server, but other circumstances could also provoke similar problems.
1152 I have changed the default so that the retry time for these errors is now
1153 based a combination of the sender and recipient addresses. This change
1154 can be overridden by setting address_retry_include_sender=false in the
1155 smtp transport.
1156
99ea1c86
PH
1157PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1158 remote server are returned as part of bounce messages. This was not
1159 happening for LMTP over a pipe (the lmtp transport), but now it is the
1160 same for both kinds of LMTP.
1161
a2042e78
PH
1162PH/38 Despite being documented as not happening, Exim was rewriting addresses
1163 in header lines that were in fact CNAMEs. This is no longer the case.
1164
4fbcfc2e
PH
1165PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1166 and queue runs started by the daemon processed all messages. This has
1167 been fixed so that -R and -S can now usefully be given with -q<time>.
1168
aa41d2de
PH
1169PH/40 Import PCRE release 6.7 (fixes some bugs).
1170
af561417
PH
1171PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1172
3cc66b45
PH
1173PH/42 Give an error if -q is specified more than once.
1174
194cc0e4
PH
1175PH/43 Renamed the variables $interface_address and $interface_port as
1176 $received_ip_address and $received_port, to make it clear that these
1177 values apply to message reception, and not to the outgoing interface when
1178 a message is delivered. (The old names remain recognized, of course.)
1179
a401ddaa
PH
1180PH/44 There was no timeout on the connect() call when using a Unix domain
1181 socket in the ${readsocket expansion. There now is.
1182
4e88a19f
PH
1183PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1184 be meaningful with "accept".
1185
d7d7b289
SC
1186SC/01 Eximstats V1.43
1187 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1188
1189SC/02 Eximstats V1.44
1190 Use a glob alias rather than an array ref in the generated
1191 parser. This improves both readability and performance.
1192
1193SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1194 Collect SpamAssassin and rejection statistics.
1195 Don't display local sender or destination tables unless
1196 there is data to show.
1197 Added average volumes into the top table text output.
1198
1199SC/04 Eximstats V1.46
1200 Collect data on the number of addresses (recipients)
1201 as well as the number of messages.
1202
1203SC/05 Eximstats V1.47
1204 Added 'Message too big' to the list of mail rejection
1205 reasons (thanks to Marco Gaiarin).
1206
1207SC/06 Eximstats V1.48
1208 Mainlog lines which have GMT offsets and are too short to
1209 have a flag are now skipped.
1210
1211SC/07 Eximstats V1.49 (Alain Williams)
1212 Added the -emptyok flag.
1213
1214SC/08 Eximstats V1.50
1215 Fixes for obtaining the IP address from reject messages.
1216
0ea2a468
JJ
1217JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1218 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1219 whitesspace changes from 4.64-PH/27
1220
1221JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1222 match 4.64-PH/13
1223
1224JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1225 are found, allow negative numbers in numeric criteria)
1226
1227JJ/06 exipick.20061117.2, added new $message_body_missing variable
1228
1229JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1230 to match changes made in 4.64-PH/43
1231
8a10f5a4
PH
1232PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1233
30e18802
PH
1234PH/47 Put in an explicit test for a DNS lookup of an address record where the
1235 "domain" is actually an IP address, and force a failure. This locks out
1236 those revolvers/nameservers that support "A-for-A" lookups, in
1237 contravention of the specifications.
1238
55728a4f
PH
1239PH/48 When a host name was looked up from an IP address, and the subsequent
1240 forward lookup of the name timed out, the host name was left in
1241 $sender_host_name, contrary to the specification.
d7d7b289 1242
d7837193
PH
1243PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1244 restricted to single-key lookups, Exim was not diagnosing an error if
1245 * or *@ was used with a query-style lookup.
1246
87054a31
PH
1247PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1248
ea2c01d2
MH
1249MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1250 long ago, but noone interested enough thought of it. Let's just say that
1251 the "1.1" means that there are some new functions that weren't there at
1252 some point in the past.
1253
e4fa6968
PH
1254PH/51 Error processing for expansion failure of helo_data from an smtp
1255 transport during callout processing was broken.
1256
56f5d9bd
PH
1257PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1258 tested/used via the -bh/-bhc/-bs options.
1259
922e1c28
PH
1260PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1261 bug, fixed in subsequent PCRE releases).
1262
21eb6e72
PH
1263PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1264 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1265
a0540757
PH
1266PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1267
944e9e9c 1268
478be7b0
SC
1269Exim version 4.63
1270-----------------
1271
1272SC/01 Use a glob alias rather than an array ref in eximstats generated
1273 parser. This improves both readability and performance.
1274
1275SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1276 Don't display local sender or destination tables in eximstats unless
1277 there is data to show.
1278 Added average volumes into the eximstats top table text output.
1279
1280SC/03 Collect data on the number of addresses (recipients) as well
1281 as the number of messages in eximstats.
1282
2b965a65
TF
1283TF/01 Correct an error in the documentation for the redirect router. Exim
1284 does (usually) call initgroups() when daemonizing.
478be7b0 1285
45b91596
PH
1286TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1287 with consistent privilege compared to when running as a daemon.
478be7b0 1288
c59f5781
TF
1289TF/03 Note in the spec that $authenticated_id is not set for local
1290 submissions from trusted users.
1291
90fc3069
TF
1292TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1293 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1294
6083aca0
TF
1295TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1296 by adding some example configuration directives to the default
1297 configuration file. A little bit of work is required to uncomment the
1298 directives and define how usernames and passwords are checked, but
1299 there is now a framework to start from.
1300
765b530f
PH
1301PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1302 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1303 without this. I don't know how relevant this is to other LDAP libraries.
1304
4e167a8c
PH
1305PH/02 Add the verb name to the "unknown ACL verb" error.
1306
4608d683
PH
1307PH/03 Magnus Holmgren's patch for filter_prepend_home.
1308
b8dc3e4a
PH
1309PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1310
5418e93b
PH
1311PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1312 directory not expanded when it should be if an expanded home directory
1313 was set for the address (which is overridden by the transport).
1314
b4a9bda2
PH
1315PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1316 libradius.
1317
45b91596
PH
1318PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1319 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1320 because it is too late at that time, and has no effect.
1321
5547e2c5
PH
1322PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1323 security issue with \' (bugzilla #107). I could not use the
1324 PQescapeStringConn() function, because it needs a PGconn value as one of
1325 its arguments.
1326
dbcef0ea
PH
1327PH/08 When testing addresses using -bt, indicate those final addresses that
1328 are duplicates that would not cause an additional delivery. At least one
1329 person was confused, thinking that -bt output corresponded to deliveries.
1330 (Suppressing duplicates isn't a good idea as you lose the information
1331 about possibly different redirections that led to the duplicates.)
1332
25257489
PH
1333PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1334 systems where poll() doesn't work, in particular OS X.
1335
c816d124
PH
1336PH/10 Added more information to debugging output for retry time not reached.
1337
a9ccd69a
PH
1338PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1339 operations in malware.c.
1340
75fa1910
PH
1341PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1342 signatures.
1343
a7d7aa58
PH
1344PH/13 If write_rejectlog was set false when logging was sent to syslog with
1345 syslog_duplication set false, log lines that would normally be written
1346 both the the main log and to the reject log were not written to syslog at
1347 all.
1348
42119b09
PH
1349PH/14 In the default configuration, change the use of "message" in ACL warn
1350 statements to "add_header".
1351
41609df5
PH
1352PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1353 not followed by a command (e.g. "seen endif").
1354
a5bd321b
PH
1355PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1356 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1357 latter.
1358
e85a7ad5 1359PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1360 so that it is now:
1361
e85a7ad5
PH
1362 ${if or { \
1363 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1364 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1365 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1366 }{no}{yes}}
1367
e85a7ad5
PH
1368 The Auto-Submitted: and various List- headers are standardised, whereas I
1369 don't think Precedence: ever was.
5dff5817 1370
d8fe1c03
PH
1371PH/18 Refactored debugging code in route_finduser() to show more information,
1372 in particular, the error code if getpwnam() issues one.
1373
16282d2b
PH
1374PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1375 This is apparently needed in addition to the PH/07 change above to avoid
1376 any possible encoding problems.
1377
35d40a98
PH
1378PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1379 but not after initializing Perl.
1380
034d99ab
PH
1381PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1382 output them only if debugging. By default they are written stderr,
1383 apparently, which is not desirable.
1384
6ec97b1b
PH
1385PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1386 queries.
1387
e22ca4ac
JJ
1388JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1389 --not options
1390
1391JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1392
33d73e3b
PH
1393PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1394 authenticated or an ident call has been made. Suppress the default
1395 values for $authenticated_id and $authenticated_sender (but permit -oMai
1396 and -oMas) when testing with -bh.
1397
9ecb03f3
PH
1398PH/24 Re-jigged the order of the tests in the default configuration so that the
1399 tests for valid domains and recipients precede the DNS black list and CSA
1400 tests, on the grounds that those ones are more expensive.
1401
084efe8d
PH
1402PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1403 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1404 This bug exists in every version of Exim that I still have, right back to
1405 0.12.
1406
366fc9f0
PH
1407PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1408 However, an attempt to turn on case-sensitivity in a regex key by
1409 including (?-i) didn't work because the subject string was already
1410 lowercased, and the effects were non-intuitive. It turns out that a
1411 one-line patch can be used to allow (?-i) to work as expected.
1412
c59f5781 1413
c887c79e
TF
1414Exim version 4.62
1415-----------------
1416
1417TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1418 other effects) broke the use of negated acl sub-conditions.
1419
1cce3af8
PH
1420PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1421 patch).
1422
afb3eaaf
PH
1423PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1424 "Deny" causes Exim to reject the incoming connection with a 554 error.
1425 Unfortunately, if there is a major crisis, such as a disk failure,
1426 tcp-wrappers gives "deny", whereas what one would like would be some
1427 kind of temporary error. A kludge has been added to help with this.
1428 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1429 554 error is used if errno is still zero or contains ENOENT (which occurs
1430 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1431 451 error is used.
1432
e173618b
PH
1433PH/03 Add -lutil to the default FreeBSD LIBS setting.
1434
dd16e114
PH
1435PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1436 errors. Otherwise a message that provokes a temporary error (when other
1437 messages do not) can cause a whole host to time out.
1438
f7fd3850
PH
1439PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1440 addresses were routed directly to files or pipes from a redirect router.
1441 File deliveries just didn't batch; pipe deliveries might have suffered
1442 odd errors.
1443
d87df92c
PH
1444PH/06 A failure to get a lock for a hints database would erroneously always say
1445 "Failed to get write lock", even when it was really a read lock.
1446
7e9f683d
PH
1447PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1448 of 0600. This has been changed to use the value of the lockfile_mode
1449 option (which defaults to 0600).
1450
bfad5236
PH
1451PH/08 Applied small patch from the Sieve maintainer.
1452
01c490df
PH
1453PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1454 folder from quota calculations, a direct delivery into this folder messed
1455 up the contents of the maildirsize file. This was because the regex was
1456 used only to exclude .Trash (or whatever) when the size of the mailbox
1457 was calculated. There was no check that a delivery was happening into an
1458 excluded directory. This bug has been fixed by ignoring all quota
1459 processing for deliveries into excluded directories.
1460
d6629cdc
PH
1461PH/10 Added the maildirfolder_create_regex option to appendfile.
1462
1cce3af8 1463
214e2000
PH
1464Exim version 4.61
1465-----------------
1466
1467PH/01 The code for finding all the local interface addresses on a FreeBSD
1468 system running IPv6 was broken. This may well have applied to all BSD
1469 systems, as well as to others that have similar system calls. The broken
1470 code found IPv4 interfaces correctly, but gave incorrect values for the
1471 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1472 that it would not match correctly against @[] and not recognize the IPv6
1473 addresses as local.
1474
f9daeae0
PH
1475PH/02 The ipliteral router was not recognizing addresses of the form user@
1476 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1477
7e66e54d
PH
1478PH/03 Added disable_ipv6.
1479
c8ea1597
PH
1480PH/04 Changed $reply_address to use the raw form of the headers instead of the
1481 decoded form, because it is most often used to construct To: headers
1482 lines in autoreplies, and the decoded form may well be syntactically
1483 invalid. However, $reply_address has leading white space removed, and all
1484 newlines turned into spaces so that the autoreply transport does not
1485 grumble.
1486
911f6fde
PH
1487PH/05 If group was specified without a user on a router, and no group or user
1488 was specified on a transport, the group from the router was ignored.
1489
47ca6d6c
PH
1490PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1491 for visible compile-time settings that can be used to change these
1492 numbers, for those that want even more. Backwards compatibility with old
1493 spool files has been maintained. However, going back to a previous Exim
1494 release will lost any variables that are in spool files.
1495
ed0e9820
PH
1496PH/07 Two small changes when running in the test harness: increase delay when
1497 passing a TCP/IP connection to a new process, in case the original
1498 process has to generate a bounce, and remove special handling of
1499 127.0.0.2 (sic), which is no longer necessary.
1500
eff37e47
PH
1501PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1502 be the same on different OS.
1503
1921d2ea
PH
1504PH/09 Moved a debug statement in filter processing to avoid a race problem when
1505 testing.
1506
b3f69ca8
JJ
1507JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1508 whether --show-vars was specified or not
1509
1510JJ/02 exipick: Added support for new ACL variable spool format introduced
1511 in 4.61-PH/06
1512
424a1c63
PH
1513PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1514 syntactically invalid From: or Reply-to: line, and a filter used this to
1515 generate an autoreply, and therefore failed to obtain an address for the
1516 autoreply, Exim could try to deliver to a non-existent relative file
1517 name, causing unrelated and misleading errors. What now happens is that
1518 it logs this as a hard delivery error, but does not attempt to create a
1519 bounce message.
1520
7a100415
PH
1521PH/11 The exinext utility has a -C option for testing purposes, but although
1522 the given file was scanned by exinext itself; it wasn't being passed on
1523 when Exim was called.
1524
19b9dc85
PH
1525PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1526 an end-of-file indication when reading a command response.
1527
309bd837
PH
1528PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1529 compiled. In many other places in Exim, IPv6 addresses are always
1530 recognized, so I have changed this. It also means that IPv4 domain
1531 literals of the form [IPV4:n.n.n.n] are now always recognized.
1532
59e82a2a
PH
1533PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1534 used if the router is not running as root, for example, when verifying at
1535 ACL time, or when using -bh. The debugging output from this situation was
1536 non-existent - all you got was a failure to exec. I have made two
1537 changes:
1538
1539 (a) Failures to set uid/gid, the current directory, or a process leader
1540 in a subprocess such as that created by queryprogram now generate
1541 suitable debugging ouput when -d is set.
1542
1543 (b) The queryprogram router detects when it is not running as root,
1544 outputs suitable debugging information if -d is set, and then runs
1545 the subprocess without attempting to change uid/gid.
1546
9edc04ce
PH
1547PH/15 Minor change to Makefile for building test_host (undocumented testing
1548 feature).
1549
1349e1e5
PH
1550PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1551 additional section of a DNS packet that returns MX or SRV records.
1552 Instead, it always explicitly searches for A/AAAA records. This avoids
1553 major problems that occur when a DNS server includes only records of one
1554 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1555 fixed another bug: if SRV records were looked up and the corresponding
1556 address records were *not* found in the additional section, the port
1557 values from the SRV records were lost.
1558
ea49d0e1
PH
1559PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1560 using the correct key (the original address) when searching the retry
1561 rules in order to find which one to use for generating the retry hint.
1562
064a94c9
PH
1563PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1564 adding the default one. Similarly, if it contains a Reply-To: header, the
1565 errors_reply_to option, if set, is not used.
1566
727071f8
PH
1567PH/19 When calculating a retry time, Exim used to measure the "time since
1568 failure" by looking at the "first failed" field in the retry record. Now
1569 it does not use this if it is later than than the arrival time of the
1570 message. Instead it uses the arrival time. This makes for better
1571 behaviour in cases where some deliveries succeed, thus re-setting the
1572 "first failed" field. An example is a quota failure for a huge message
1573 when small messages continue to be delivered. Without this change, the
1574 "time since failure" will always be short, possible causing more frequent
1575 delivery attempts for the huge message than are intended.
dd16e114 1576 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1577
f78eb7c6
PH
1578PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1579 $1, $2, $3) because the numerical variables can be reset during some
1580 expansion items (e.g. "match"), thereby losing the authentication data.
1581
21c28500
PH
1582PH/21 Make -bV show the size of off_t variables so that the test suite can
1583 decide whether to run tests for quotas > 2G.
1584
1585PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1586 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1587 filecount value is greater than 2G or if a quota value is greater than 2G
1588 on a system where the size of off_t is not greater than 4, a panic error
1589 is given.
1590
1688f43b
PH
1591PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1592 never match. The debug and -bh output now contains an explicit error
1593 message indicating a malformed IPv4 address or mask.
1594
1595PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1596 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1597 PH/23 above applies.
1598
9675b384
PH
1599PH/25 Do not write to syslog when running in the test harness. The only
1600 occasion when this arises is a failure to open the main or panic logs
1601 (for which there is an explicit test).
1602
6a3f1455
PH
1603PH/26 Added the /no_tell option to "control=freeze".
1604
dac79d3e
PH
1605PH/27 If a host name lookup failed very early in a connection, for example, if
1606 the IP address matched host_lookup and the reverse lookup yielded a name
1607 that did not have a forward lookup, an error message of the form "no IP
1608 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1609 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1610
5977a0b3
PH
1611PH/28 An enabling patch from MH: add new function child_open_exim2() which
1612 allows the sender and the authenticated sender to be set when
1613 submitting a message from within Exim. Since child_open_exim() is
1614 documented for local_scan(), the new function should be too.
1615
c91535f3
PH
1616PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1617 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1618 results in an empty string is now treated as unset.
1619
0d46a8c8
PH
1620PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1621
278c6e6c
PH
1622PH/31 Added sender_verify_fail logging option.
1623
2cbb4081
PH
1624PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1625 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1626 tidied the source and removed it altogether.
1627
3eef829e
PH
1628PH/33 When a queue run was abandoned because the load average was too high, a
1629 log line was always written; now it is written only if the queue_run log
1630 selector is set. In addition, the log line for abandonment now contains
1631 information about the queue run such as the pid. This is always present
1632 in "start" and "stop" lines but was omitted from the "abandon" line.
1633
1ab95fa6
PH
1634PH/34 Omit spaces between a header name and the colon in the error message that
1635 is given when verify = headers_syntax fails (if there are lots of them,
1636 the message gets confusing).
1637
230205fc
PH
1638PH/35 Change the default for dns_check_names_pattern to allow slashes within
1639 names, as there are now some PTR records that contain slashes. This check
1640 is only to protect against broken name servers that fall over on strange
1641 characters, so the fact that it applies to all lookups doesn't matter.
1642
75e0e026
PH
1643PH/36 Now that the new test suite is complete, we can remove some of the
1644 special code in Exim that was needed for the old test suite. For example,
1645 sorting DNS records because real resolvers return them in an arbitrary
1646 order. The new test suite's fake resolver always returns records in the
1647 same order.
1648
1649PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1650 bounces) except when queue_only is set, to avoid logging races between
1651 the different processes.
1652
145396a6
PH
1653PH/38 Panic-die if .include specifies a non-absolute path.
1654
3cd34f13
PH
1655PH/39 A tweak to the "H" retry rule from its user.
1656
11121d3d
JJ
1657JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1658 a label. They prevented compilation on older perls.
1659
1660JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1661 a warning to be raised on newish perls.
1662
1663JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1664 on queue. Changes to match documented behaviour of showing count of
1665 messages matching specified criteria.
1666
8def5aaf
PH
1667PH/40 Changed the default ident timeout from 30s to 5s.
1668
929ba01c
PH
1669PH/41 Added support for the use of login_cap features, on those BSD systems
1670 that have them, for controlling the resources used by pipe deliveries.
1671
2632889e
PH
1672PH/42 The content-scanning code uses fopen() to create files in which to put
1673 message data. Previously it was not paying any attention to the mode of
1674 the files. Exim runs with umask(0) because the rest of the code creates
1675 files with open(), and sets the required mode explicitly. Thus, these
1676 files were ending up world-writeable. This was not a big issue, because,
1677 being within the spool directory, they were not world-accessible. I have
1678 created a function called modefopen, which takes an additional mode
1679 argument. It sets umask(777), creates the file, chmods it to the required
1680 mode, then resets the umask. All the relevant calls to fopen() in the
1681 content scanning code have been changed to use this function.
1682
944a9c55
PH
1683PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1684 to 24 hours. This avoids potential overflow problems when processing G
1685 and H retry rules. I suspect nobody ever tinkers with this value.
1686
4a23603b
PH
1687PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1688
4730f942
PH
1689PH/45 When the plaintext authenticator is running as a client, the server's
1690 challenges are checked to ensure they are valid base64 strings. By
1691 default, the authentication attempt is cancelled if an invalid string is
1692 received. Setting client_ignore_invalid_base64 true ignores these errors.
1693 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1694 they are received. Thus, the responses can be made to depend on the
1695 challenges. If an invalid string is ignored, an empty string is placed in
1696 the variable.
1697
30dba1e6
PH
1698PH/46 Messages that are created by the autoreply transport now contains a
1699 References: header, in accordance with RFCs 2822 and 3834.
1700
382afc6b
PH
1701PH/47 Added authenticated_sender_force to the smtp transport.
1702
a86229cf
PH
1703PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1704
50c99ba6
PH
1705PH/49 Installed latest patch from the Sieve maintainer.
1706
d35e429d
PH
1707PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1708 was also set, the appendfile transport was unnecessarily scanning a
1709 directory of message files (e.g. for maildir delivery) to find the count
1710 of files (along with the size), even though it did not need this
1711 information. It now does the scan only if it needs to find either the
1712 size of the count of files.
1713
f90d018c
PH
1714PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1715
75def545
PH
1716PH/52 Two bugs concerned with error handling when the smtp transport is
1717 used in LMTP mode:
1718
1719 (i) Exim was not creating retry information for temporary errors given
1720 for individual recipients after the DATA command when the smtp transport
1721 was used in LMTP mode. This meant that they could be retried too
1722 frequently, and not timed out correctly.
1723
1724 (ii) Exim was setting the flag that allows error details to be returned
1725 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1726 recipients that were returned after the DATA command.
1727
1728PH/53 This is related to PH/52, but is more general: for any failing address,
1729 when detailed error information was permitted to be returned to the
1730 sender, but the error was temporary, then after the final timeout, only
1731 "retry timeout exceeded" was returned. Now it returns the full error as
1732 well as "retry timeout exceeded".
1733
c46782ef
PH
1734PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1735 do this, and (what is worse) MTAs that accept it.
1736
71fafd95
PH
1737PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1738 will now be deprecated.
1739
2c5db4fd
PH
1740PH/56 New os.c-cygwin from the Cygwin maintainer.
1741
9cf6b11a
JJ
1742JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1743 formats (previously only available in exim formats via -bpr, -bpru,
1744 and -bpra. Now also available in native and exiqgrep formats)
1745
1746JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1747 with very large, slow to parse queues
1748
1749JJ/08 exipick: added ! as generic prefix to negate any criteria format
1750
1751JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1752
898d150f
PH
1753PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1754 responses to authentication challenges, though it was showing the
1755 challenges; (ii) I've removed the CR characters from the debug output for
1756 SMTP output lines.
1757
46218253
PH
1758PH/58 Allow for the insertion of a newline as well as a space when a string
1759 is turned into more than one encoded-word during RFC 2047 encoding. The
1760 Sieve code now uses this.
1761
e97957bc
PH
1762PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1763 data_4xx, lost_connection, tls_required.
1764
81e509d7
PH
1765PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1766 message was being sent as an SMTP response.
1767
3d240ff7
PH
1768PH/61 Add -l and -k options to exicyclog.
1769
b37c4101
PH
1770PH/62 When verifying, if an address was redirected to one new address, so that
1771 verification continued, and the new address failed or deferred after
1772 having set something in $address_data, the value of $address_data was not
1773 passed back to the ACL. This was different to the case when no
1774 redirection occurred. The value is now passed back in both cases.
1775
79378e0f
PH
1776PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1777 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1778 use login_cap.h, so on its own it isn't the distinguishing feature. The
1779 new name refers directly to the setclassresources() function.
1780
e49c7bb4
PH
1781PH/65 Added configuration files for NetBSD3.
1782
d114ec46
PH
1783PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1784
f3d7df6c
PH
1785PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1786 is preferred over IPv4.
1787
715ab376
PH
1788PH/68 The bounce_return_message and bounce_return_body options were not being
1789 honoured for bounces generated during the reception of non-SMTP messages.
1790 In particular, this applied to messages rejected by the ACL. This bug has
1791 been fixed. However, if bounce_return_message is true and bounce_return_
1792 body is false, the headers that are returned for a non-SMTP message
1793 include only those that have been read before the error was detected.
1794 (In the case of an ACL rejection, they have all been read.)
1795
6b31b150
PH
1796PH/69 The HTML version of the specification is now built in a directory called
1797 spec_html instead of spec.html, because the latter looks like a path with
1798 a MIME-type, and this confuses some software.
1799
1800PH/70 Catch two compiler warnings in sieve.c.
1801
d515a917
PH
1802PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1803 function verify_get_ident() calls ip_connect() to connect a socket, but
1804 if the "connect()" function timed out, ip_connect() used to close the
1805 socket. However, verify_get_ident() also closes the socket later, and in
1806 between Exim writes to the log, which may get opened at this point. When
1807 the socket was closed in ip_connect(), the log could get the same file
1808 descriptor number as the socket. This naturally causes chaos. The fix is
1809 not to close the socket in ip_connect(); the socket should be closed by
1810 the function that creates it. There was only one place in the code where
1811 this was missing, in the iplookup router, which I don't think anybody now
1812 uses, but I've fixed it anyway.
1813
9b8fadde
PH
1814PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1815 well as to direct DNS lookups. Otherwise the handling of names in host
1816 lists is inconsistent and therefore confusing.
1817
214e2000 1818
5de37277
PH
1819Exim version 4.60
1820-----------------
1821
cc38ddbf
PH
1822PH/01 Two changes to the default runtime configuration:
1823
1824 (1) Move the checks for relay_from_hosts and authenticated clients from
1825 after to before the (commented out) DNS black list checks.
1826
1827 (2) Add control=submission to the relay_from_hosts and authenticated
1828 clients checks, on the grounds that messages accepted by these
1829 statements are most likely to be submissions.
5de37277 1830
72fdd6ae
PH
1831PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1832
1833 (1) Generate an error if the third argument for the ${prvs expansion is
1834 not a single digit.
1835
1836 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1837 string.
1838
1839 (3) Reset the variables that are obtained from the first argument of
1840 ${prvscheck and used in the second argument before leaving the code,
1841 because their memory is reclaimed, so using them afterwards may do
1842 silly things.
1843
1844 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1845 one (it's much easier than Tom thought :-).
1846
1847 (5) Because of (4), we can now allow for the use of $prvscheck_result
1848 inside the third argument.
cb9328de 1849
cb741023
PH
1850PH/03 For some reason, the default setting of PATH when running a command from
1851 a pipe transport was just "/usr/bin". I have changed it to
1852 "/bin:/usr/bin".
1853
f174f16e
PH
1854PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1855 anything to be listed in the output from -bV.
b2f5a032 1856
c25242d7
PH
1857PH/05 When a filter generated an autoreply, the entire To: header line was
1858 quoted in the delivery log line, like this:
1859
1860 => >A.N.Other <ano@some.domain> <original@ddress> ...
1861
1862 This has been changed so that it extracts the operative address. There
1863 may be more than one such address. If so, they are comma-separated, like
1864 this:
1865
1866 => >ano@some.domain,ona@other.domain <original@ddress> ...
1867
82c19f95
PH
1868PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1869 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1870 not being looked up in the rDNS to get a host name, Exim was showing the
1871 IP address twice in Received: lines, even though the IP addresses were
1872 identical. For example:
1873
1874 Received: from [1.2.3.4] (helo=[1.2.3.4])
1875
1876 However, if the real host name was known, it was omitting the HELO data
1877 if it matched the actual IP address. This has been tidied up so that it
1878 doesn't show the same IP address twice.
1879
d7ffbc12
PH
1880PH/07 When both +timestamp and +memory debugging was on, the value given by
1881 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1882 called by the debug printing, thereby overwriting the timestamp buffer.
1883 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1884
9f526266
PH
1885PH/08 When the original message was included in an autoreply transport, it
1886 always said "this is a copy of the message, including all the headers",
1887 even if body_only or headers_only was set. It now gives an appropriate
1888 message.
1889
87fcc8b9
PH
1890PH/09 Applied a patch from the Sieve maintainer which:
1891
1892 o fixes some comments
1893 o adds the (disabled) notify extension core
1894 o adds some debug output for the result of if/elsif tests
1895 o points to the current vacation draft in the documentation
1896 and documents the missing references header update
1897
1898 and most important:
1899
1900 o fixes a bug in processing the envelope test (when testing
1901 multiple envelope elements, the last element determinted the
1902 result)
1903
456682f5
PH
1904PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1905 Electronic Mail") by including:
1906
1907 Auto-submitted: auto-generated
1908
1909 in the messages that it generates (bounce messages and others, such as
1910 warnings). In the case of bounce messages for non-SMTP mesages, there was
1911 also a typo: it was using "Auto_submitted" (underscore instead of
1912 hyphen). Since every message generated by Exim is necessarily in response
1913 to another message, thes have all been changed to:
1914
1915 Auto-Submitted: auto-replied
1916
1917 in accordance with these statements in the RFC:
1918
1919 The auto-replied keyword:
1920
1921 - SHOULD be used on messages sent in direct response to another
1922 message by an automatic process,
1923
1924 - MUST NOT be used on manually-generated messages,
1925
1926 - MAY be used on Delivery Status Notifications (DSNs) and Message
1927 Disposition Notifications (MDNs),
1928
1929 - MUST NOT be used on messages generated by automatic or periodic
1930 processes, except for messages which are automatic responses to
1931 other messages.
1932
3e46c1aa
PH
1933PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1934 to the default Received: header definition.
456682f5 1935
49826d12
PH
1936PH/12 Added log selector acl_warn_skipped (default on).
1937
eba0c039
PH
1938PH/13 After a successful wildlsearch lookup, discard the values of numeric
1939 variables because (a) they are in the wrong storage pool and (b) even if
1940 they were copied, it wouldn't work properly because of the caching.
1941
a0d6ba8a
PH
1942PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1943 checking when decoding. Apparently there are clients that generate
1944 overlong encoded strings. Why am I not surprised?
1945
f0917727
PH
1946PH/15 If the first argument of "${if match_address" was not empty, but did not
1947 contain an "@" character, Exim crashed. Now it writes a panic log message
1948 and treats the condition as false.
1949
096fee00
PH
1950PH/16 In autoreply, treat an empty string for "once" the same as unset.
1951
024bd3c2
PH
1952PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1953 extension "envelope-auth". The code is finished and in agreement with
1954 other implementations, but there is no documentation so far and in fact,
1955 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1956 not changing the active code.
1957
1958 Print executed "if" and "elsif" statements when debugging is used. This
1959 helps a great deal to understand what a filter does.
1960
1961 Document more things not specified clearly in RFC3028. I had all this
1962 sorted out, when out of a sudden new issues came to my mind. Oops."
1963
df199fec
PH
1964PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1965 (Bugzilla #53).
1966
d27f1df3
PH
1967PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1968 canonical form (as documented). However, after a host name lookup from
1969 the IP address, check_host() was doing a simple string comparison with
1970 addresses acquired from the DNS when checking that the found name did
1971 have the original IP as one of its addresses. Since any found IPv6
1972 addresses are likely to be in abbreviated form, the comparison could
1973 fail. Luckily, there already exists a function for doing the comparison
1974 by converting both addresses to binary, so now that is used instead of
1975 the text comparison.
1976
96776534
PH
1977PH/20 There was another similar case to PH/19, when a complete host name was
1978 given in a host list; looking up its IP address could give an abbreviated
1979 form, whereas the current host's name might or might not be abbreviated.
1980 The same fix has been applied.
1981
5de37277 1982
9a799bc0
PH
1983Exim version 4.54
1984-----------------
1985
1986PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1987 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1988 It now does.
1989
99a4b039
PH
1990PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1991 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1992
1993PH/03 Typo: missing ".o" in src/pcre/Makefile.
1994
4b233853
PH
1995PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1996 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1997 Also, for "Auto-Submitted", treat anything other than "no" as
1998 non-personal, in accordance with RFC 3834. (Previously it treated
1999 anything starting "auto-" as non-personal.)
2000
8857ccfd
PH
2001TF/01 The control=submission/name=... option had a problem with syntax
2002 errors if the name included a slash character. The /name= option
2003 now slurps the rest of the string, so it can include any characters
2004 but it must come last in the list of options (after /sender_retain
2005 or /domain=).
2006
433a2980
PH
2007PH/05 Some modifications to the interface to the fake nameserver for the new
2008 testing suite.
2009
3e46c1aa 2010
9a799bc0 2011
e3a311ba
TK
2012Exim version 4.53
2013-----------------
2014
2015TK/01 Added the "success_on_redirect" address verification option. See
2016 NewStuff for rationale and an example.
2017
13b685f9
PH
2018PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2019
395ff96d
PH
2020PH/02 Patch to exigrep to allow it to work on syslog lines.
2021
5b68f6e4
PH
2022PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2023 fread() to skip over the body file's header line, because in Cygwin the
2024 header line is locked and is inaccessible.
2025
1ab52c69
PH
2026PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2027 co-exist for some time) to make it clear that it is the Exim ID that is
2028 referenced, not the Message-ID: header line.
2029
b07e6aa3
PH
2030PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2031 string_format() function, because snprintf() does not exist on all
2032 operating systems.
2033
254e032f
PH
2034PH/06 The use of forbid_filter_existstest now also locks out the use of the
2035 ${stat: expansion item.
2036
3af76a81
PH
2037PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2038 protocol synchronization error", to keep the pedants happy.
2039
2548ba04
PH
2040PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2041 well as for IRIX systems, when gcc is being used. See the host.c source
2042 file for comments.
2043
b6c6011d
PH
2044PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2045
cf39cf57
PH
2046PH/10 Named domain lists were not working if used in a queue_smtp_domains
2047 setting.
2048
f1513293
PH
2049PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2050 transport and to the smtp transport in LMTP mode.
2051
727549a4
PH
2052TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2053
af46795e
PH
2054PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2055 run a filter in a subprocess. This could lead to confusion in subsequent
2056 lookups in the parent process. There should also be a search_tidyup() at
2057 the end of the subprocess.
2058
d7b47fd0
PH
2059PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2060 only if the host matched helo_try_verify_hosts, which caused the
2061 verification to occur when the EHLO/HELO command was issued. The ACL just
2062 tested the remembered result. Now, if a previous verification attempt has
2063 not happened, "verify = helo" does it there and then.
2064
ee744174
JJ
2065JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2066
b582ab87
PH
2067TK/03 Fix log output including CR from clamd.
2068
41a13e0a
PH
2069PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2070 exist provoked a memory error which could cause a segfault.
2071
f625cc5a
PH
2072PH/15 Installed PCRE 6.2
2073
2074PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2075
21f7af35
PH
2076PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2077 of the problem. Specifically, suggested +O2 rather than +O1 for the
2078 HP-UX compiler.
2079
31480e42
PH
2080PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2081
2d280592
PH
2082PH/20 If a delivery was routed to a non-standard port by means of an SRV
2083 record, the port was not correctly logged when the outgoing_port log
2084 selector was set (it logged the transort's default port).
2085
7cd1141b
PH
2086PH/21 Added support for host-specific ports to manualroute, queryprogram,
2087 fallback_hosts, and "hosts" in the smtp transport.
2088
2089PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2090 host errors such as "Connection refused".
2091
750af86e
PH
2092PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2093 authentication with radiusclient 0.4.9:
2094
2095 - Error returned from rc_read_config was caught wrongly
2096 - Username/password not passed on to radius server due to wrong length.
2097
2098 The presumption is that some radiusclient API changes for 4.51/PH/17
2099 were not taken care of correctly. The code is still untested by me (my
2100 Linux distribution still has 0.3.2 of radiusclient), but it was
2101 contributed by a Radius user.
2102
2103PH/24 When doing a callout, the value of $domain wasn't set correctly when
2104 expanding the "port" option of the smtp transport.
2105
4304270b
TK
2106TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2107 while reading a MIME header. Thanks to Tom Hughes for a patch.
2108
750af86e
PH
2109PH/24 Include config.h inside local_scan.h so that configuration settings are
2110 available.
2111
64ffc24f
PH
2112PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2113 that in an ACL for RCPT (for example), you can examine exactly what was
2114 received.
2115
5dd9625b
PH
2116PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2117 commands, but it was not correctly comparing the address with the actual
2118 client host address. Thus, it would show the EHLO address in Received:
2119 header lines when this was not necessary.
2120
5591031b
PH
2121PH/27 Added the % operator to ${eval:}.
2122
ba18e66a
PH
2123PH/28 Exim tries to create and chdir to its spool directory when it starts;
2124 it should be ignoring failures (because with -C, for example, it has lost
2125 privilege). It wasn't ignoring creation failures other than "already
2126 exists".
2127
9cec981f
PH
2128PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2129 -bV or -d is used.
2130
aa2b5c79
PH
2131PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2132 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2133 too many continuations, the temporary file was not being removed, and the
2134 return code was incorrect.
aa2b5c79 2135
48a53b7f
PH
2136PH/31 Missing "BOOL" in function definition in filtertest.c.
2137
1c59d63b
PH
2138PH/32 Applied Sieve patches from the maintainer.
2139
671012da
TK
2140TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2141
1509d3a8
PH
2142PH/33 Added "verify = not_blind".
2143
2144PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2145 Local/Makefile (with some defaults set). These are used in built scripts
2146 such as exicyclog, but they have never been used in the exim_install
2147 script (though there are many overriding facilities there). I have
2148 arranged that the exim_install script now takes note of these two
2149 settings.
2150
2151PH/35 Installed configuration files for Dragonfly.
2152
2fe1a124
PH
2153PH/36 When a locally submitted message by a trusted user did not contain a
2154 From: header, and the sender address was obtained from -f or from an SMTP
2155 MAIL command, and the trusted user did not use -F to supply a sender
2156 name, $originator_name was incorrectly used when constructing a From:
2157 header. Furthermore, $originator_name was used for submission mode
2158 messages from external hosts without From: headers in a similar way,
2159 which is clearly wrong.
2160
8800895a
PH
2161PH/37 Added control=suppress_local_fixups.
2162
ccfdb010
PH
2163PH/38 When log_selector = +received_sender was set, and the addition of the
2164 sender made the log line's construction buffer exactly full, or one byte
2165 less than full, an overflow happened when the terminating "\n" was
2166 subsequently added.
2167
1130bfb0
PH
2168PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2169 when the result of a list match is failure because a DNS lookup failed.
2170
ebcb507f
PH
2171PH/40 RM_COMMAND is now used in the building process.
2172
c35e155c
PH
2173PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2174 the "build-* directories that it finds.
2175
95d1f782
PH
2176PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2177 address in a domain literal was a prefix of an interface address.
2178
fd6de02e
PH
2179PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2180 when verifying a sender address, unless rewrite_headers is false.
2181
58de37c5
PH
2182PH/44 Wrote a long comment about why errors_to addresses are verified as
2183 recipients, not senders.
2184
261cf466
TF
2185TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2186 the ratelimit ACL was added.
2187
3ee512ff
PH
2188PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2189
e08c430f
PH
2190PH/46 Added extra information about PostgreSQL errors to the error string.
2191
bef5a11f
PH
2192PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2193 avoiding the need to install special zones in a real server. This is
2194 backwards compatible; if it can't find the fake resolver, it drops back.
2195 Thus, both old and new test suites can be run.
2196
7546de58
TF
2197TF/02 Added util/ratelimit.pl
2198
e5d5a95f
TF
2199TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2200 clock is set back in time.
2201
2e88a017
TF
2202TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2203 Candler <B.Candler@pobox.com>.
2204
a5f65aa4
TF
2205TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2206 OK for addresses that are the result of redirections.
2207
e7726cbf
PH
2208PH/48 A number of further additions for the benefit of the new test suite,
2209 including a fake gethostbyname() that interfaces to the fake DNS resolver
2210 (see PH/47 above).
2211
a7fdad5b
TF
2212TF/06 The fix for widen_domains has also been applied to qualify_single and
2213 search_parents which are the other dnslookup options that can cause
2214 header rewrites.
2215
6af56900
PH
2216PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2217 type ("H").
2218
0925ede6
PH
2219PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2220
66afa403
TF
2221TF/07 Exim produced the error message "an SRV record indicated no SMTP
2222 service" if it encountered an MX record with an empty target hostname.
2223 The message is now "an MX or SRV record indicated no SMTP service".
2224
0154e85a
TF
2225TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2226 if the DNS of the sending site is misconfigured. This is quite a
2227 common situation. This change restores the behaviour of treating a
2228 helo verification defer as a failure.
2229
16f12c76
PH
2230PH/51 If self=fail was set on a router, the bounce message did not include the
2231 actual error message.
2232
bbe902f0 2233
e5a9dba6
PH
2234Exim version 4.52
2235-----------------
2236
2237TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2238
22c3b60b
PH
2239PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2240 command itself ended in error, the underlying message about the transport
2241 filter timeout was being overwritten with the pipe command error. Now the
2242 underlying error message should be appended to the second error message.
2243
06a9b4b5
PH
2244TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2245
c1ac6996
PH
2246PH/02 Reduce the amount of output that "make" produces by default. Full output
2247 can still be requested.
2248
9c7a242c
PH
2249PH/03 The warning log line about a condition test deferring for a "warn" verb
2250 was being output only once per connection, rather than after each
2251 occurrence (because it was using the same function as for successful
2252 "warn" verbs). This seems wrong, so I have changed it.
2253
87ba3f5f
PH
2254TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2255 it should not have, which might have caused a crash in the right
2256 circumstances, but probably never did.
2257
2258PH/04 Installed a modified version of Tony Finch's patch to make submission
2259 mode fix the return path as well as the Sender: header line, and to
2260 add a /name= option so that you can make the user's friendly name appear
2261 in the header line.
2262
29aba418
TF
2263TF/03 Added the control = fakedefer ACL modifier.
2264
fe0dab11
TF
2265TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2266 Mark Lowes for thorough testing.
870f6ba8 2267
11d337a4
TK
2268TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2269
2270TK/03 Merged latest SRS patch from Miles Wilton.
2271
415c8f3b
PH
2272PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2273 with the definition in sysexits.h (which is #included earlier).
2274 Fortunately, Exim does not actually use EX_OK. The code used to try to
2275 preserve the sysexits.h value, by assumimg that macro definitions were
2276 scanned for macro replacements. I have been disabused of this notion,
2277 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2278
958541e9
PH
2279PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2280 in the smtp transport. When a block could not be written in a single
2281 write() function, the timeout was being re-applied to each part-write.
2282 This seems wrong - if the receiver was accepting one byte at a time it
2283 would take for ever. The timeout is now adjusted when this happens. It
2284 doesn't have to be particularly precise.
2285
c206415f
TK
2286TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2287 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2288
2a4be8f9
PH
2289PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2290 without a domain if the check to <postmaster@domain> fails.
2291
1cba11c5
SC
2292SC/01 Eximstats: added -xls and the ability to specify output files
2293 (patch written by Frank Heydlauf).
2294
2295SC/02 Eximstats: use FileHandles for outputing results.
2296
2297SC/03 Eximstats: allow any combination of xls, txt, and html output.
2298
2299SC/04 Eximstats: fixed display of large numbers with -nvr option
2300
2301SC/05 Eximstats: fixed merging of reports with empty tables.
2302
2303SC/06 Eximstats: added the -include_original_destination flag
2304
2305SC/07 Eximstats: removed tabs and trailing whitespace.
2306
1005d00e
TK
2307TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2308
2309TK/06 MBOX spool code: Add real "From " MBOX separator line
2310 so the .eml file is really in mbox format (even though
2311 most programs do not really care). Patch from Alex Miller.
2312
2313TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2314 The latter is generated from $received_to and is only set if the
2315 message has one envelope recipient. SA can use these headers,
2316 obviously out-of-the-box. Patch from Alex Miller.
2317
9b4768fa
PH
2318PH/08 The ${def test on a variable was returning false if the variable's
2319 value was "0", contrary to what the specification has always said!
2320 The result should be true unless the variable is empty.
2321
2322PH/09 The syntax error of a character other than { following "${if
2323 def:variable_name" (after optional whitespace) was not being diagnosed.
2324 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2325 accidental colon was present, for example, could give incorrect results.
2326
0d7eb84a
PH
2327PH/10 Tidied the code in a number of places where the st_size field of a stat()
2328 result is used (not including appendfile, where other changes are about
2329 to be made).
2330
2331PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2332 This involved changing a lot of size variables from int to off_t. It
2333 should work with maildirs and everything.
2334
40727bee
TK
2335TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2336 spamd dying while we are connected to it.
2337
554d2369
TF
2338TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2339 <jgh@wizmail.org>
2340
1f922db1
PH
2341PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2342 function for BDB 4.3.
2343
ef213c3b
PH
2344PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2345
8ac170f3
PH
2346PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2347 the sources for PCRE have been re-arranged and more files are now
2348 involved.
2349
b1c749bb
PH
2350PH/15 The code I had for printing potentially long long variables in PH/11
2351 above was not the best (it lost precision). The length of off_t variables
2352 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2353 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2354 to be "long long int" or "long int". This is needed for the internal
2355 formatting function string_vformat().
b1c749bb 2356
4aac9b49
PH
2357PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2358 the configuration file to be ":syslog", then the script "guesses" where
2359 the logs files are, rather than using the compiled in default. In our
2360 case the guess is not the same as the compiled default, so the script
2361 suddenly stopped working when I started to use syslog. The patch checks
2362 to see if log_file_path is "". If so, it attempts to read it from exim
2363 with no configuration file to get the compiled in version, before it
2364 falls back to the previous guessing code."
2365
294520c8
TK
2366TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2367 implementing BATV in an Exim configuration. See NewStuff for the gory
2368 details.
2369
5bd022fe
PH
2370PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2371 Makefile that are specific to HP-UX.
2372
90e9ce59
PH
2373PH/18 If the "use_postmaster" option was set for a recipient callout together
2374 with the "random" option, the postmaster address was used as the MAIL
2375 FROM address for the random test, but not for the subsequent recipient
2376 test. It is now used for both.
2377
5ea81592
PH
2378PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2379 patch removes a few documentation additions to RFC 3028, because the
2380 latest draft now contains them. It adds the new en;ascii-case comparator
2381 and a new error check for 8bit text in MIME parts. Comparator and
2382 require names are now matched exactly. I enabled the subaddress
2383 extension, but it is not well tested yet (read: it works for me)."
2384
c6c2dc1d
PH
2385PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2386 rework some of the code of TK/09 above to avoid the hardwired use of
2387 "%lld" and "long long". Replaced the call to snprintf() with a call to
2388 string_vformat().
2389
fffffe4c
PH
2390PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2391 records point to non-existent hosts", "retry timeout exceeded", and
2392 "retry time not reached for any host after a long failure period".
ca02eafb 2393
9a26b6b2
PH
2394PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2395 experimental DomainKeys support:
2396
2397 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2398 (2) On an error such as an illegally used "control", the wrong name for
2399 the control was given.
2400
2401 These problems did NOT occur unless DomainKeys support was compiled.
2402
4aee0225
PH
2403PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2404
32d668a5
PH
2405PH/24 Added ${if match_ip condition.
2406
8187c3f3
PH
2407PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2408 databases so that it will be absolutely obvious if a crash occurs in the
2409 DB library. This is a regular occurrence (often caused by mis-matched
2410 db.h files).
2411
ff790e47 2412PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2413 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2414 picked up on a user's system that detects such things. There doesn't seem
2415 to be a gcc warning option for this - only an attribute that has to be
2416 put on the function's prototype. It seems that in Fedora Core 4 they have
2417 set this on a number of new functions. No doubt there will be more in due
2418 course.
ff790e47 2419
5417f6d1
PH
2420PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2421 specify a transport. However, if an address that was verified by such a
2422 router was the subject of a callout, Exim crashed because it tried to
2423 read the rcpt_include_affixes from the non-existent transport. Now it
2424 just assumes that the setting of that option is false. This bug was
2425 introduced by 4.51/PH/31.
2426
59cf8544
PH
2427PH/28 Changed -d+all to exclude +memory, because that information is very
2428 rarely of interest, but it makes the output a lot bigger. People tend to
2429 do -d+all out of habit.
2430
e7ad8a65
PH
2431PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2432 code in os-type was giving problems when libc.so lives in lib64, like on
2433 x86_64 Fedora Core.
2434
ade42478
PH
2435PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2436 aren't the modern standard, and it seems that some systems' include files
2437 don't always have them. Exim was already checking for some of the newer
2438 ones like T_AAAA, and defining it itself. I've added checks for all the
2439 record types that Exim uses.
2440
182ad5cf
PH
2441PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2442 not automatically generating a new one, as it is supposed to. This
2443 prevented TLS from working. If the file did exist, but contained invalid
2444 data, a new version was generated, as expected. It was only the case of a
2445 non-existent file that was broken.
2446
b0d9fc80
TK
2447TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2448 with a change in libdomainkeys > 0.64.
2449
2450TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2451 from DNS. If the selector record carries the flag, it now has
2452 precedence over the domain-wide flag.
2453
2454TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2455
47c7a64a
PH
2456PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2457 the use of a port name that isn't defined in /etc/services) occurred, the
2458 message was deferred as in a normal delivery, and thus remained on the
2459 spool, instead of being failed because of the mua_wrapper setting. This
2460 is now fixed, and I tidied up some of the mua_wrapper messages at the
2461 same time.
2462
a388bce4
SC
2463SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2464 the messages in a hash of arrays rather than using individual hashes.
2465 This is a bit cleaner and results in dramatic memory savings, albeit
2466 at a slight CPU cost.
2467
2468SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2469 as requested by Marc Sherman.
2470
2471SC/10 Eximstats: added histograms for user specified patterns as requested
2472 by Marc Sherman.
2473
0793e4ed
SC
2474SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2475
c58b88df
PH
2476PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2477 fopen() in the content-scanning modules that did not already have it.
2478
e7ad8a65 2479
7982096b
PH
2480Exim version 4.51
2481-----------------
2482
1a46a8c5
PH
2483TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2484 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2485
2f079f46 2486TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2487
2488TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2489
2490PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2491 to test Sieve filters that use "vacation".
2492
2493PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2494 that changes the way the GnuTLS parameters are stored in the cache file.
2495 The new format can be generated externally. For backward compatibility,
2496 if the data in the cache doesn't make sense, Exim assumes it has read an
2497 old-format file, and it generates new data and writes a new file. This
2498 means that you can't go back to an older release without removing the
2499 file.
2500
2501PH/03 A redirect router that has both "unseen" and "one_time" set does not
2502 work if there are any delivery delays because "one_time" forces the
2503 parent to be marked "delivered", so its unseen clone is never tried
2504 again. For this reason, Exim now forbids the simultaneous setting of
2505 these two options.
2506
2507PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2508 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2509 entry if you want to know the details. The fix, however, neglected to
2510 consider the case when local delivery batching is involved. The test for
2511 "previously delivered" was not happening when checking to see if an
2512 address could be batched with a previous (undelivered) one; under
2513 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2514 address.
1a46a8c5
PH
2515
2516PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2517 in its include files, and this causes problems building Exim.
2518
2519PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2520 header_syntax) but Exim was just ignoring anything given after a slash.
2521 In particular, this caused confusion with an attempt to use "verify =
2522 reverse_host_lookup/defer_ok". An error is now given when options are
2523 supplied for verify items that do not have them. (Maybe reverse_host_
2524 lookup should have a defer_ok option, but that's a different point.)
2525
2526PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2527 defined by RFC 821) to 2048, because there were problems with some AUTH
2528 commands, and RFC 1869 says the size should be increased for extended
2529 SMTP commands that take arguments.
2530
2531PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2532 Finch).
2533
2534PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2535 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2536
49c2d5ea
PH
2537PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2538 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2539 whatever). Otherwise the password may appear in the log. Following change
2540 PH/42 below, there is no longer a chance of it appearing in a bounce
2541 message.
49c2d5ea 2542
bf759a8b
PH
2543PH/11 Installed exipick version 20050225.0 from John Jetmore.
2544
83364d30
PH
2545PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2546 of its addresses was ever tried. (Bugzilla bug #2.)
2547
7999bbd7
PH
2548PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2549 the result incorrectly in the debug output. (It correctly added a newline
2550 to what was transported.)
2551
7dbf77c9
PH
2552TF/01 Added $received_time.
2553
74e0617f
PH
2554PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2555 commented out examples of how to interface to a virus scanner and to
2556 SpamAssassin. Also added commented examples of av_scanner and
2557 spamd_address settings.
2558
2f079f46
PH
2559PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2560 and controls are allowed in which ACLs. There were a couple of minor
2561 errors. Some of the entries in the conditions table (which is a table of
2562 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2563 negation of where the condition IS allowed.
2564
8c841523
PH
2565PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2566
7766a4f0
PH
2567PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2568 header file does not have a version number, so I've had to invent a new
2569 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2570 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2571 radiusclient), but it was contributed by a Radius user.
2572
8b417f2c
PH
2573PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2574 files or directories, for OpenSSL.
2575
901f42cb
PH
2576PH/19 When an Exim process that is running as root has to create an Exim log
2577 file, it does so in a subprocess that runs as exim:exim so as to get the
2578 ownership right at creation (otherwise, other Exim processes might see
2579 the file with the wrong ownership). There was no test for failure of this
2580 fork() call, which would lead to the process getting stuck as it waited
2581 for a non-existent subprocess. Forks do occasionally fail when resources
2582 run out. I reviewed all the other calls to fork(); they all seem to check
2583 for failure.
2584
f9b9210e
PH
2585PH/20 When checking for unexpected SMTP input at connect time (before writing
2586 the banner), Exim was not dealing correctly with a non-positive return
2587 from the read() function. If the client had disconnected by this time,
2588 the result was a log entry for a synchronization error with an empty
2589 string after "input=" when read() returned zero. If read() returned -1
2590 (an event I could not check), uninitialized data bytes were printed.
2591 There were reports of junk text (parts of files, etc) appearing after
2592 "input=".
2593
54cdb463
PH
2594PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2595
cf00dad6
PH
2596PH/22 Added support for macro redefinition, and (re)definition in between
2597 driver and ACL definitions.
2598
acb1b346
PH
2599PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2600 forgetting to use the resulting value; it was using the unexpanded value.
2601
c5ddb310
PH
2602PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2603 hadn't been configured. The fix is from Juergen Kreileder, who
2604 understands it better than I do:
2605
2606 "Here's what I see happening with three configured cyrus_sasl
2607 authenticators configured (plain, login, cram-md5):
2608
2609 On startup auth_cyrus_sasl_init() gets called for each of these.
2610 This means three calls to sasl_listmech() without a specified mech_list.
2611 => SASL tests which mechs of all available mechs actually work
2612 => three warnings about OTP not working
2613 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2614
2615 With the patch, sasl_listmech() also gets called three times. But now
2616 SASL's mech_list option is set to the server_mech specified in the the
2617 authenticator. Or in other words, the answer from sasl_listmech()
2618 gets limited to just the mech you're testing for (which is different
2619 for each call.)
2620 => the return list contains just 'plain' or 'login', 'cram-md5' or
2621 nothing depending on the value of ob->server_mech.
2622
2623 I've just tested the patch: Authentication still works fine,
2624 unavailable mechs specified in the exim configuration are still
2625 caught, and the auth.log warnings about OTP are gone."
2626
31619da6
PH
2627PH/25 When debugging is enabled, the contents of the command line are added
2628 to the debugging output, even when log_selector=+arguments is not
2629 specified.
2630
bebaf0fc
PH
2631PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2632 answer is "GNU", and only if the return is "GNU/something" is the answer
2633 "Linux".
2634
475fe28a
PH
2635PH/27 $acl_verify_message is now set immediately after the failure of a
2636 verification in an ACL, and so is available in subsequent modifiers. In
2637 particular, the message can be preserved by coding like this:
2638
2639 warn !verify = sender
2640 set acl_m0 = $acl_verify_message
2641
2642 Previously, $acl_verify_message was set only while expanding "message"
2643 and "log_message" when a very denied access.
2644
7e8bec7a
PH
2645PH/28 Modified OS/os.c-Linux with
2646
2647 -#ifndef OS_LOAD_AVERAGE
2648 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2649
2650 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2651 nomenclature these days.)
2652
e4a89c47
PH
2653PH/29 Installed patch from the Sieve maintainer that adds the options
2654 sieve_useraddress and sieve_subaddress to the redirect router.
2655
5ca2a9a1
PH
2656PH/30 In these circumstances:
2657 . Two addresses routed to the same list of hosts;
2658 . First host does not offer TLS;
2659 . First host accepts first address;
2660 . First host gives temporary error to second address;
2661 . Second host offers TLS and a TLS session is established;
2662 . Second host accepts second address.
2663 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2664 and peerdn, if requested) that were in fact used only for the second
2665 address.
7e8bec7a 2666
c688b954
PH
2667PH/31 When doing a callout as part of verifying an address, Exim was not paying
2668 attention to any local part prefix or suffix that was matched by the
2669 router that accepted the address. It now behaves in the same way as it
2670 does for delivery: the affixes are removed from the local part unless
2671 rcpt_include_affixes is set on the transport.
2672
fed77020
PH
2673PH/32 Add the sender address, as F=<...>, to the log line when logging a
2674 timeout during the DATA phase of an incoming message.
2675
7fe1560f
PH
2676PH/33 Sieve envelope tests were broken for match types other than :is. I have
2677 applied a patch sanctioned by the Sieve maintainer.
c688b954 2678
ebb6e6d5
PH
2679PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2680 the uid or gid is negative. A case of a negative gid caused this to be
2681 noticed. The fix allows for either to be negative.
2682
9c4e8f60
PH
2683PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2684 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2685 overlooked.
2686
2687PH/36 The change PH/12 above was broken. Fixed it.
2688
d7174846
PH
2689PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2690 the grounds that routing the same address twice would always produce the
2691 same answer. This might have been true once, but it is certainly no
2692 longer true now. Routing a child address may depend on the previous
2693 routing that produced that child. Some complicated redirection strategies
2694 went wrong when messages had multiple recipients, and made Exim's
2695 behaviour dependent on the order in which the addresses were given.
2696
2697 I have moved the duplicate checking until after the routing is complete.
2698 Exim scans the addresses that are assigned to local and remote
2699 transports, and removes any duplicates. This means that more work will be
2700 done, as duplicates will always all be routed, but duplicates are
2701 presumably rare, so I don't expect this is of any significance.
2702
2703 For deliveries to pipes, files, and autoreplies, the duplicate checking
2704 still happens during the routing process, since they are not going to be
2705 routed further.
2706
cfe75fc3
PH
2707PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2708 It corrects a timeout issue with spamd. This is Ian's comment: "The
2709 background is that sometimes spamd either never reads data from a
2710 connection it has accepted, or it never writes response data. The exiscan
2711 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2712 blindly assumes that writes won't block so it may never time out."
2713
be22d70e
PH
2714PH/39 Allow G after quota size as well as K and M.
2715
0612b098
PH
2716PH/40 The value set for $authenticated_id in an authenticator may not contain
2717 binary zeroes or newlines because the value is written to log lines and
2718 to spool files. There was no check on this. Now the value is run through
2719 the string_printing() function so that such characters are converted to
2720 printable escape sequences.
2721
2e0c1448
PH
2722PH/41 $message_linecount is a new variable that contains the total number of
2723 lines in the message. Compare $body_linecount, which is the count for the
2724 body only.
2725
447d236c
PH
2726PH/42 Exim no longer gives details of delivery errors for specific addresses in
2727 bounce and delay warning messages, except in certain special cases, which
2728 are as follows:
2729
2730 (a) An SMTP error message from a remote host;
2731 (b) A message specified in a :fail: redirection;
2732 (c) A message specified in a "fail" command in a system filter;
2733 (d) A message specified in a FAIL return from the queryprogram router;
2734 (e) A message specified by the cannot_route_message router option.
2735
2736 In these cases only, Exim does include the error details in bounce and
2737 warning messages. There are also a few cases where bland messages such
2738 as "unrouteable address" or "local delivery error" are given.
2739
d20976dc
PH
2740PH/43 $value is now also set for the "else" part of a ${run expansion.
2741
f656d135
PH
2742PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2743 being worked on, but at least Exim now implements the latest version to
2744 play with."
2745
2e2a30b4
PH
2746PH/45 In a pipe transport, although a timeout while waiting for the pipe
2747 process to complete was treated as a delivery failure, a timeout while
2748 writing the message to the pipe was logged, but erroneously treated as a
2749 successful delivery. Such timeouts include transport filter timeouts. For
2750 consistency with the overall process timeout, these timeouts are now
2751 treated as errors, giving rise to delivery failures by default. However,
2752 there is now a new Boolean option for the pipe transport called
2753 timeout_defer, which, if set TRUE, converts the failures into defers for
2754 both kinds of timeout. A transport filter timeout is now identified in
2755 the log output.
2756
9176e9f0
PH
2757PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2758 systems where "make" and "gmake" are different, calling "gmake" at top
2759 level broke things. I've arranged for the value of $(MAKE) to be passed
2760 from the Makefile to this script so that it can call the same version of
2761 "make".
2762
7982096b 2763
bbe902f0
PH
2764A note about Exim versions 4.44 and 4.50
2765----------------------------------------
2766
2767Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2768changes of various kinds. As a consequence, a big documentation update was
2769needed. This delayed the release for rather longer than seemed good, especially
2770in the light of a couple of (minor) security issues. Therefore, the changes
2771that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2772release. So 4.44 and 4.50 are in effect two different branches that both start
2773from 4.43.
2774
2775I have left the 4.50 change log unchanged; it contains all the changes since
27764.43. The change log for 4.44 is below; many of its items are identical to
2777those for 4.50. This seems to be the most sensible way to preserve the
2778historical information.
2779
2780
f7b63901 2781Exim version 4.50
495ae4b0
PH
2782-----------------
2783
5fe762f6
PH
2784 1. Minor wording change to the doc/README.SIEVE file.
2785
139059f6 2786 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2787 computation of the current number of files was incorrect.
495ae4b0 2788
7086e875
PH
2789 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2790 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2791 place.
2792
35af9f61
PH
2793 4. Give more explanation in the error message when the command for a transport
2794 filter fails to execute.
2795
b668c215
PH
2796 5. There are several places where Exim runs a non-Exim command in a
2797 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2798 was being done only for the command run by the queryprogram router. It is
2799 now done for all such subprocesses. The other cases are: ${run, transport
2800 filters, and the commands run by the lmtp and pipe transports.
2801
a494b1e1
PH
2802 6. Added CONFIGURE_GROUP build-time option.
2803
2804 7. Some older OS have a limit of 256 on the maximum number of file
2805 descriptors. Exim was using setrlimit() to set 1000 as a large value
2806 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2807 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2808
c5fcb476
PH
2809 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2810 was an oversight, and furthermore, ever since the addition of extra
2811 controls (e.g. 4.43/32), the checks on when to allow different forms of
2812 "control" were broken. There should now be diagnostics for all cases when a
2813 control that does not make sense is encountered.
2814
69358f02
PH
2815 9. Added the /retain_sender option to "control=submission".
2816
5be20824
PH
281710. $recipients is now available in the predata ACL (oversight).
2818
eb2c0248
PH
281911. Tidy the search cache before the fork to do a delivery from a message
2820 received from the command line. Otherwise the child will trigger a lookup
2821 failure and thereby defer the delivery if it tries to use (for example) a
2822 cached ldap connection that the parent has called unbind on.
2823
2a3eea10
PH
282412. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2825 of $address_data from the recipient verification was clobbered by the
2826 sender verification.
2827
282813. The value of address_data from a sender verification is now available in
2829 $sender_address_data in subsequent conditions in the ACL statement.
2830
23c7ff99
PH
283114. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2832
4deaf07d
PH
283315. Added a new option "connect=<time>" to callout options, to set a different
2834 connection timeout.
2835
926e1192
PH
283616. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2837 was its contents. (It was OK if the option was not defined at all.)
2838
650edc6f
PH
283917. A "Completed" log line is now written for messages that are removed from
2840 the spool by the -Mrm option.
2841
2c7db3f5
PH
284218. New variables $sender_verify_failure and $recipient_verify_failure contain
2843 information about exactly what failed.
2844
3d235903
PH
284519. Added -dd to debug only the daemon process.
2846
7c7ad977
PH
284720. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2848 handles timeouts, both on the server side and network timeouts. Renamed the
2849 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2850
981756db
PH
285121. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2852 It is now set to "smtps".
2853
d4eb88df
PH
285422. $host_address is now set to the target address during the checking of
2855 ignore_target_hosts.
2856
285723. When checking ignore_target_hosts for an ipliteral router, no host name was
2858 being passed; this would have caused $sender_host_name to have been used if
2859 matching the list had actually called for a host name (not very likely,
2860 since this list is usually IP addresses). A host name is now passed as
2861 "[x.x.x.x]".
2862
7d468ab8
PH
286324. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2864 code that specifies a non-restarting handler (typically sigaction() in
2865 modern systems) in an attempt to fix a rare and obscure crash bug.
2866
286725. Narrowed the window for a race in the daemon that could cause it to ignore
2868 SIGCHLD signals. This is not a major problem, because they are used only to
2869 wake it up if nothing else does.
2870
62c0818f
PH
287126. A malformed maildirsize file could cause Exim to calculate negative values
2872 for the mailbox size or file count. Odd effects could occur as a result.
2873 The maildirsize information is now recalculated if the size or filecount
2874 end up negative.
2875
26034054
PH
287627. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2877 support for a long time. Removed HAVE_SYS_VFS_H.
2878
af66f652
PH
287928. Installed the latest version of exipick from John Jetmore.
2880
90af77f4
PH
288129. In an address list, if the pattern was not a regular expression, an empty
2882 subject address (from a bounce message) matched only if the pattern was an
2883 empty string. Non-empty patterns were not even tested. This was the wrong
2884 because it is perfectly reasonable to use an empty address as part of a
2885 database query. An empty address is now tested by patterns that are
2886 lookups. However, all the other forms of pattern expect the subject to
2887 contain a local part and a domain, and therefore, for them, an empty
2888 address still always fails if the pattern is not itself empty.
2889
d8ef3577
PH
289030. Exim went into a mad DNS loop when attempting to do a callout where the
2891 host was specified on an smtp transport, and looking it up yielded more
2892 than one IP address.
2893
5cb8cbc6
PH
289431. Re-factored the code for checking spool and log partition space into a
2895 function that finds that data and another that does the check. The former
2896 is then used to implement four new variables: $spool_space, $log_space,
2897 $spool_inodes, and $log_inodes.
2898
14702f5b
PH
289932. The RFC2047 encoding function was originally intended for short strings
2900 such as real names; it was not keeping to the 75-character limit for
2901 encoded words that the RFC imposes. It now respects the limit, and
2902 generates multiple encoded words if necessary. To be on the safe side, I
2903 have increased the buffer size for the ${rfc2047: expansion operator from
2904 1024 to 2048 bytes.
2905
063b1e99
PH
290633. It is now permitted to omit both strings after an "if" condition; if the
2907 condition is true, the result is "true". As before, when the second string
2908 is omitted, a false condition yields an empty string. This makes it less
2909 cumbersome to write custom ACL and router conditions.
2910
652e1b65
PH
291134. Failure to deliver a bounce message always caused it to be frozen, even if
2912 there was an errors_to setting on the router. The errors_to setting is now
2913 respected.
2914
6f0c9a4f
PH
291535. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2916 canonical form (fully expanded) before being placed in
2917 $sender_host_address.
2918
33397d19
PH
291936. The table in the code that translates DNS record types into text (T_A to
2920 "A" for instance) was missing entries for NS and CNAME. It is just possible
2921 that this could have caused confusion if both these types were looked up
2922 for the same domain, because the text type is used as part of Exim's
2923 per-process caching. But the chance of anyone hitting this buglet seems
2924 very small.
2925
7bb56e1f
PH
292637. The dnsdb lookup has been extended in a number of ways.
2927
2928 (1) There is a new type, "zns", which walks up the domain tree until it
2929 finds some nameserver records. It should be used with care.
2930
ea3bc19b
PH
2931 (2) There is a new type, "mxh", which is like "mx" except that it returns
2932 just the host names, not the priorities.
2933
2934 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2935 looked up. The behaviour when one of the lookups defers can be
2936 controlled by a keyword.
7bb56e1f 2937
ea3bc19b 2938 (4) It is now possible to specify the separator character for use when
7bb56e1f 2939 multiple records are returned.
33397d19 2940
0bcb2a0e
PH
294138. The dnslists ACL condition has been extended: it is now possible to supply
2942 a list of IP addresses and/or domains to be looked up in a particular DNS
2943 domain.
2944
2ac0e484
PH
294539. Added log_selector=+queue_time_overall.
2946
4e1fde53
PH
294740. When running the queue in the test harness, wait just a tad after forking a
2948 delivery process, to get repeatability of debugging output.
2949
de365ded
PH
295041. Include certificate and key file names in error message when GnuTLS fails
2951 to set them up, because the GnuTLS error message doesn't include the name
2952 of the failing file when there is a problem reading it.
2953
f05da2e8
PH
295442. Allow both -bf and -bF in the same test run.
2955
d6453af2
PH
295643. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2957
f7b63901
PH
295844. The "Exiscan patch" is now merged into the mainline Exim source.
2959
296045. Sometimes the final signoff response after QUIT could fail to get
2961 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2962 < 0 before doing a fflush(). This bug looks as though it goes back to the
2963 introduction of TLS in release 3.20, but "sometimes" must have been rare
2964 because the tests only now provoked it.
2965
a444213a
PH
296646. Reset the locale to "C" after calling embedded Perl, in case it was changed
2967 (this can affect the format of dates).
2968
0ec020ea
PH
296947. exim_tidydb, when checking for the continued existence of a message for
2970 which it has found a message-specific retry record, was not finding
2971 messages that were in split spool directories. Consequently, it was
2972 deleting retry records that should have stayed in existence.
2973
b1206957
PH
297448. Steve fixed some bugs in eximstats.
2975
297649. The SPA authentication driver was not abandoning authentication and moving
2977 on to the next authenticator when an expansion was forced to fail,
2978 contradicting the general specification for all authenticators. Instead it
2979 was generating a temporary error. It now behaves as specified.
2980
26dd5a95
PH
298150. The default ordering of permitted cipher suites for GnuTLS was pessimal
2982 (the order specifies the preference for clients). The order is now AES256,
2983 AES128, 3DES, ARCFOUR128.
2984
343b2385
PH
298551. Small patch to Sieve code - explicitly set From: when generating an
2986 autoreply.
2987
1c5466b9
PH
298852. Exim crashed if a remote delivery caused a very long error message to be
2989 recorded - for instance if somebody sent an entire SpamAssassin report back
2990 as a large number of 550 error lines. This bug was coincidentally fixed by
2991 increasing the size of one of Exim's internal buffers (big_buffer) that
2992 happened as part of the Exiscan merge. However, to be on the safe side, I
2993 have made the code more robust (and fixed the comments that describe what
2994 is going on).
2995
55ee9ee3
PH
299653. Now that there can be additional text after "Completed" in log lines (if
2997 the queue_time_overall log selector is set), a one-byte patch to exigrep
2998 was needed to allow it to recognize "Completed" as not the last thing in
2999 the line.
3000
d38f8232
PH
300154. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
3002 patch that reportedly fixes this has been added. I am not expert enough to
3003 create a test for it. This is what the patch creator wrote:
3004
3005 "I found a little strange behaviour of ldap code when working with
3006 Windows 2003 AD Domain, where users was placed in more than one
3007 Organization Units. When I tried to give exim partial DN, the exit code
3008 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
3009 But simultaneously result of request was absolutely normal ldap result,
3010 so I produce this patch..."
3011
3295e65b
PH
3012 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
3013 REFERENCE, so I have modified the code to exclude the patch when that macro
3014 is not defined.
3015
7102e136
PH
301655. Some experimental protocols are using DNS PTR records for new purposes. The
3017 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
3018 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3019 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 3020 CAN-2005-0021
7102e136 3021
3ca0ba97
PH
302256. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
3023
c2bcbe20
PH
302457. Double the size of the debug message buffer (to 2048) so that more of very
3025 long debug lines gets shown.
3026
18ce445d
PH
302758. The exicyclog utility now does better if the number of log files to keep
3028 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
3029
1f5b4c3d
PH
303059. Two changes related to the smtp_active_hostname option:
3031
3032 (1) $smtp_active_hostname is now available as a variable.
3033 (2) The default for smtp_banner uses $smtp_active_hostname instead
3034 of $primary_hostname.
3035
b975ba52
PH
303660. The host_aton() function is supposed to be passed a string that is known
3037 to be a valid IP address. However, in the case of IPv6 addresses, it was
3038 not checking this. This is a hostage to fortune. Exim now panics and dies
3039 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
3040 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3041 components; fortuitously, this particular loophole had already been fixed
3042 by change 4.50/55 above.
3043
3044 If there are any other similar loopholes, the new check in host_aton()
3045 itself should stop them being exploited. The report I received stated that
3046 data on the command line could provoke the exploit when Exim was running as
3047 exim, but did not say which command line option was involved. All I could
3048 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3049 running as the user.
ea3a6f44 3050 CAN-2005-0021
85b87bc2
PH
3051
305261. There was a buffer overflow vulnerability in the SPA authentication code
3053 (which came originally from the Samba project). I have added a test to the
3054 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 3055 CAN-2005-0022
b975ba52 3056
17ffcae7
PH
305762. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3058 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3059
d95f9fdb
PH
306063. The daemon start-up calls getloadavg() while still root for those OS that
3061 need the first call to be done as root, but it missed one case: when
3062 deliver_queue_load_max is set with deliver_drop_privilege. This is
3063 necessary for the benefit of the queue runner, because there is no re-exec
3064 when deliver_drop_privilege is set.
3065
86b8287f
PH
306664. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3067 This has been fixed.
3068
60dc5e56
PH
306965. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3070 was in use, was not putting the data itself into the right store pool;
3071 consequently, it could be overwritten for a subsequent message in the same
3072 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3073 the caching.)
3074
533244af
PH
307566. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3076
a5a28604
PH
307767. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3078 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3079 the function were treating the return as a boolean value, which happened to
3080 work because 0=false and not-0=true, but is not correct code.
3081
7e634d24
PH
308268. The host_aton() function was not handling scoped IPv6 addresses (those
3083 with, for example, "%eth0" on the end) correctly.
3084
3e11c26b
PH
308569. Fixed some compiler warnings in acl.c for the bitmaps specified with
3086 negated items (that is, ~something) in unsigned ints. Some compilers
3087 apparently mutter when there is no cast.
3088
6729cf78
PH
308970. If an address verification called from an ACL failed, and did not produce a
3090 user-specific message (i.e. there was only a "system" message), nothing was
3091 put in $acl_verify_message. In this situation, it now puts the system
3092 message there.
3093
00f00ca5
PH
309471. Change 4.23/11 added synchronization checking at the start of an SMTP
3095 session; change 4.31/43 added the unwanted input to the log line - except
3096 that it did not do this in the start of session case. It now does.
3097
c9bdd01c
PH
309872. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3099 This is wrong and can cause the other end to generate a synchronization
3100 error if it is another Exim or anything else that does the synchronization
3101 check. A QUIT command is no longer sent after a timeout.
3102
d43194df
PH
310373. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3104 during host lookups.
3105
fe5b5d0b
PH
310674. The defer_ok option of callout verification was not working if it was used
3107 when verifying addresses in header lines, that is, for this case:
3108
3109 verify = header_sender/callout=defer_ok
3110
76a2d7ba
PH
311175. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3112 those file descriptors could be used for SMTP connections. If anything
3113 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3114 could be sent to the SMTP client, causing chaos. The daemon now opens
3115 stdin, stdout, and stderr to /dev/null when it puts itself into the
3116 background.
3117
311876. Arrange for output from Perl's "warn" command to be written to Exim's main
3119 log by default. The user can override this with suitable Perl magic.
3120
04f7d5b9
PH
312177. The use of log_message on a "discard" ACL verb, which is supposed to add to
3122 the log message when discard triggers, was not working for the DATA ACL or
3123 for the non-SMTP ACL.
3124
bc60667e
PH
312578. Error message wording change in sieve.c.
3126
bb6e88ff
PH
312779. If smtp_accept_max_per_host was set, the number of connections could be
3128 restricted to fewer than expected, because the daemon was trying to set up
3129 a new connection before checking whether the processes handling previous
3130 connections had finished. The check for completed processes is now done
3131 earlier. On busy systems, this bug wouldn't be noticed because something
3132 else would have woken the daemon, and it would have reaped the completed
3133 process earlier.
3134
1e70f85b
PH
313580. If a message was submitted locally by a user whose login name contained one
3136 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3137 It caused a spool format error. I have fixed the spool reading code. A
3138 related problem was that the "from" clause in the Received: line became
3139 illegal because of the space(s). It is now covered by ${quote_local_part.
3140
314181. Included the latest eximstats from Steve (adds average sizes to HTML Top
3142 tables).
3143
4e01f9d6
PH
314482. Updated OS/Makefile-AIX as per message from Mike Meredith.
3145
1ee1cef2
PH
314683. Patch from Sieve maintainer to fix unterminated string problem in
3147 "vacation" handling.
3148
6e2b4ccc
PH
314984. Some minor changes to the Linux configuration files to help with other
3150 OS variants using glibc.
3151
8e669ac1
PH
315285. One more patch for Sieve to update vacation handling to latest spec.
3153
495ae4b0 3154
bbe902f0
PH
3155----------------------------------------------------
3156See the note above about the 4.44 and 4.50 releases.
3157----------------------------------------------------
3158
3159
3160Exim version 4.44
3161-----------------
3162
3163 1. Change 4.43/35 introduced a bug that caused file counts to be
3164 incorrectly computed when quota_filecount was set in an appendfile
3165 transport
3166
3167 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3168 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3169 place.
3170
3171 3. Give more explanation in the error message when the command for a transport
3172 filter fails to execute.
3173
3174 4. There are several places where Exim runs a non-Exim command in a
3175 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3176 was being done only for the command run by the queryprogram router. It is
3177 now done for all such subprocesses. The other cases are: ${run, transport
3178 filters, and the commands run by the lmtp and pipe transports.
3179
3180 5. Some older OS have a limit of 256 on the maximum number of file
3181 descriptors. Exim was using setrlimit() to set 1000 as a large value
3182 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3183 systems. I've change it so that if it can't get 1000, it tries for 256.
3184
3185 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3186 was an oversight, and furthermore, ever since the addition of extra
3187 controls (e.g. 4.43/32), the checks on when to allow different forms of
3188 "control" were broken. There should now be diagnostics for all cases when a
3189 control that does not make sense is encountered.
3190
3191 7. $recipients is now available in the predata ACL (oversight).
3192
3193 8. Tidy the search cache before the fork to do a delivery from a message
3194 received from the command line. Otherwise the child will trigger a lookup
3195 failure and thereby defer the delivery if it tries to use (for example) a
3196 cached ldap connection that the parent has called unbind on.
3197
3198 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3199 of $address_data from the recipient verification was clobbered by the
3200 sender verification.
3201
320210. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3203 was its contents. (It was OK if the option was not defined at all.)
3204
320511. A "Completed" log line is now written for messages that are removed from
3206 the spool by the -Mrm option.
3207
320812. $host_address is now set to the target address during the checking of
3209 ignore_target_hosts.
3210
321113. When checking ignore_target_hosts for an ipliteral router, no host name was
3212 being passed; this would have caused $sender_host_name to have been used if
3213 matching the list had actually called for a host name (not very likely,
3214 since this list is usually IP addresses). A host name is now passed as
3215 "[x.x.x.x]".
3216
321714. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3218 code that specifies a non-restarting handler (typically sigaction() in
3219 modern systems) in an attempt to fix a rare and obscure crash bug.
3220
322115. Narrowed the window for a race in the daemon that could cause it to ignore
3222 SIGCHLD signals. This is not a major problem, because they are used only to
3223 wake it up if nothing else does.
3224
322516. A malformed maildirsize file could cause Exim to calculate negative values
3226 for the mailbox size or file count. Odd effects could occur as a result.
3227 The maildirsize information is now recalculated if the size or filecount
3228 end up negative.
3229
323017. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3231 support for a long time. Removed HAVE_SYS_VFS_H.
3232
ea3a6f44 323318. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3234
323519. Allow an empty sender to be matched against a lookup in an address list.
3236 Previously the only cases considered were a regular expression, or an
3237 empty pattern.
3238
323920. Exim went into a mad DNS lookup loop when doing a callout where the
3240 host was specified on the transport, if the DNS lookup yielded more than
3241 one IP address.
3242
ea3a6f44
NM
324321. The RFC2047 encoding function was originally intended for short strings
3244 such as real names; it was not keeping to the 75-character limit for
3245 encoded words that the RFC imposes. It now respects the limit, and
3246 generates multiple encoded words if necessary. To be on the safe side, I
3247 have increased the buffer size for the ${rfc2047: expansion operator from
3248 1024 to 2048 bytes.
bbe902f0 3249
ea3a6f44
NM
325022. Failure to deliver a bounce message always caused it to be frozen, even if
3251 there was an errors_to setting on the router. The errors_to setting is now
3252 respected.
bbe902f0
PH
3253
325423. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3255 canonical form (fully expanded) before being placed in
3256 $sender_host_address.
3257
325824. Updated eximstats to version 1.33
3259
ea3a6f44
NM
326025. Include certificate and key file names in error message when GnuTLS fails
3261 to set them up, because the GnuTLS error message doesn't include the name
3262 of the failing file when there is a problem reading it.
bbe902f0
PH
3263
326426. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3265 As per change 25.
bbe902f0 3266
ea3a6f44
NM
326727. Reset the locale to "C" after calling embedded Perl, in case it was changed
3268 (this can affect the format of dates).
bbe902f0 3269
ea3a6f44
NM
327028. exim_tidydb, when checking for the continued existence of a message for
3271 which it has found a message-specific retry record, was not finding
3272 messages that were in split spool directories. Consequently, it was
3273 deleting retry records that should have stayed in existence.
bbe902f0
PH
3274
327529. eximstats updated to version 1.35
3276 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3277 1.35 - bugfix such that pie charts by volume are generated correctly
3278
ea3a6f44
NM
327930. The SPA authentication driver was not abandoning authentication and moving
3280 on to the next authenticator when an expansion was forced to fail,
3281 contradicting the general specification for all authenticators. Instead it
3282 was generating a temporary error. It now behaves as specified.
bbe902f0 3283
ea3a6f44
NM
328431. The default ordering of permitted cipher suites for GnuTLS was pessimal
3285 (the order specifies the preference for clients). The order is now AES256,
3286 AES128, 3DES, ARCFOUR128.
bbe902f0 3287
ea3a6f44
NM
328831. Small patch to Sieve code - explicitly set From: when generating an
3289 autoreply.
bbe902f0 3290
ea3a6f44
NM
329132. Exim crashed if a remote delivery caused a very long error message to be
3292 recorded - for instance if somebody sent an entire SpamAssassin report back
3293 as a large number of 550 error lines. This bug was coincidentally fixed by
3294 increasing the size of one of Exim's internal buffers (big_buffer) that
3295 happened as part of the Exiscan merge. However, to be on the safe side, I
3296 have made the code more robust (and fixed the comments that describe what
3297 is going on).
bbe902f0 3298
ea3a6f44
NM
329933. Some experimental protocols are using DNS PTR records for new purposes. The
3300 keys for these records are domain names, not reversed IP addresses. The
3301 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3302 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3303 CAN-2005-0021
3304
ea3a6f44
NM
330534. The host_aton() function is supposed to be passed a string that is known
3306 to be a valid IP address. However, in the case of IPv6 addresses, it was
3307 not checking this. This is a hostage to fortune. Exim now panics and dies
3308 if the condition is not met. A case was found where this could be provoked
3309 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3310 components; fortuitously, this particular loophole had already been fixed
3311 by change 4.50/55 or 4.44/33 above.
3312
3313 If there are any other similar loopholes, the new check in host_aton()
3314 itself should stop them being exploited. The report I received stated that
3315 data on the command line could provoke the exploit when Exim was running as
3316 exim, but did not say which command line option was involved. All I could
3317 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3318 running as the user.
bbe902f0
PH
3319 CAN-2005-0021
3320
ea3a6f44
NM
332135. There was a buffer overflow vulnerability in the SPA authentication code
3322 (which came originally from the Samba project). I have added a test to the
3323 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3324 CAN-2005-0022
3325
ea3a6f44
NM
332636. The daemon start-up calls getloadavg() while still root for those OS that
3327 need the first call to be done as root, but it missed one case: when
3328 deliver_queue_load_max is set with deliver_drop_privilege. This is
3329 necessary for the benefit of the queue runner, because there is no re-exec
3330 when deliver_drop_privilege is set.
bbe902f0 3331
ea3a6f44
NM
333237. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3333 was in use, was not putting the data itself into the right store pool;
3334 consequently, it could be overwritten for a subsequent message in the same
3335 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3336 the caching.)
bbe902f0 3337
ea3a6f44
NM
333838. Sometimes the final signoff response after QUIT could fail to get
3339 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3340 < 0 before doing a fflush(). This bug looks as though it goes back to the
3341 introduction of TLS in release 3.20, but "sometimes" must have been rare
3342 because the tests only now provoked it.
bbe902f0
PH
3343
3344
495ae4b0
PH
3345Exim version 4.43
3346-----------------
3347
3348 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3349 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3350 Now it returns an integer. A number of calls were still expecting a T/F
3351 return. Fortuitously, in all cases, the tests worked in OK situations,
3352 which is the norm. However, things would have gone wrong on any write
3353 failures on the smtp file descriptor. This function is used when sending
3354 messages over SMTP and also when doing verify callouts.
3355
3356 2. When Exim is called to do synchronous delivery of a locally submitted
3357 message (the -odf or -odi options), it no longer closes stderr before doing
3358 the delivery.
3359
3360 3. Implemented the mua_wrapper option.
3361
3362 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3363
3364 5. Implemented the functions header_remove(), header_testname(),
3365 header_add_at_position(), and receive_remove_recipient(), and exported them
3366 to local_scan().
3367
3368 6. If an ACL "warn" statement specified the addition of headers, Exim already
3369 inserted X-ACL-Warn: at the start if there was no header name. However, it
3370 was not making this test for the second and subsequent header lines if
3371 there were newlines in the string. This meant that an invalid header could
3372 be inserted if Exim was badly configured.
3373
3374 7. Allow an ACL "warn" statement to add header lines at the start or after all
3375 the Received: headers, as well as at the end.
3376
3377 8. Added the rcpt_4xx retry error code.
3378
3379 9. Added postmaster_mailfrom=xxx to callout verification option.
3380
338110. Added mailfrom=xxxx to the callout verification option, for verify=
3382 header_sender only.
3383
338411. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3385 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3386
338712. Inserted some casts to stop certain compilers warning when using pointer
3388 differences as field lengths or precisions in printf-type calls (mostly
3389 affecting debugging statements).
3390
339113. Added optional readline() support for -be (dynamically loaded).
3392
339314. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3394 same clock tick as a message's arrival, so that its received time was the
3395 same as the "first fail" time on the retry record, and that message
3396 remained on the queue past the ultimate address timeout, every queue runner
3397 would try a delivery (because it was past the ultimate address timeout) but
3398 after another failure, the ultimate address timeout, which should have then
3399 bounced the address, did not kick in. This was a "< instead of <=" error;
3400 in most cases the first failure would have been in the next clock tick
3401 after the received time, and all would be well.
3402
340315. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3404 being recognized when the domain list was tested by the match_domain
3405 condition in an expansion string.
3406
340716. Added the ${str2b64: operator.
3408
340917. Exim was always calling setrlimit() to set a large limit for the number of
3410 processes, without checking whether the existing limit was already
3411 adequate. (It did check for the limit on file descriptors.) Furthermore,
3412 errors from getrlimit() and setrlimit() were being ignored. Now they are
3413 logged to the main and panic logs, but Exim does carry on, to try to do its
3414 job under whatever limits there are.
3415
341618. Imported PCRE 5.0.
3417
341819. Trivial typo in log message " temporarily