Moved variable decl to start of block for old gcc
[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
aa097c4c
NM
6Exim version 4.75
7-----------------
8
4c9ef03a 9NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
10 Bugzilla 1073
11
7f3d9eff
TF
12TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
13 This fixes portability to compilers other than gcc, notably
14 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
15
159f52d2
TF
16TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
17 makefiles for portability to HP-UX and POSIX correctness.
18
0cc9542a
PP
19PP/01 Permit LOOKUP_foo enabling on the make command-line.
20 Also via indented variable definition in the Makefile.
21 (Debugging by Oliver Heesakkers).
22
f7274286
PP
23PP/02 Restore caching of spamd results with expanded spamd_address.
24 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
25
7b797365
PP
26PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
27 Improves build reliability. Fix from: Frank Elsner
28
caacae52
NM
29NM/02 Fix wide character breakage in the rfc2047 coding
30 Fixes bug 1064. Patch from Andrey N. Oktyabrski
31
09dcaba9
NM
32NM/03 Allow underscore in dnslist lookups
33 Fixes bug 1026. Patch from Graeme Fowler
34
bc19a55b
PP
35PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
36 Code patches from Adam Ciarcinski of NetBSD.
caacae52 37
bd4c9759
NM
38NM/04 Fixed exiqgrep to cope with mailq missing size issue
39 Fixes bug 943.
40
b72aab72
PP
41PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
42 is logged, to avoid truncation. Patch from John Horne.
43
2fe76745
PP
44PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
45 Patch from Jakob Hirsch.
46
76aa570c
PP
47PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
48 SQL string expansion failure details.
49 Patch from Andrey Oktyabrski.
50
f1e5fef5
PP
51PP/08 Bugzilla 486: implement %M datestamping in log filenames.
52 Patch from Simon Arlott.
53
4d805ee9
PP
54PP/09 New lookups functionality failed to compile on old gcc which rejects
55 extern declarations in function scope.
56 Patch from Oliver Fleischmann
57
cd59ab18
PP
58PP/10 Use sig_atomic_t for flags set from signal handlers.
59 Check getgroups() return and improve debugging.
60 Fixed developed for diagnosis in bug 927 (which turned out to be
61 a kernel bug).
62
332f5cf3
PP
63PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
64 Patch from Mark Zealey.
65
29cfeb94
PP
66PP/12 Bugzilla 1056: Improved spamd server selection.
67 Patch from Mark Zealey.
68
660242ad
PP
69PP/13 Bugzilla 1086: Deal with maildir quota file races.
70 Based on patch from Heiko Schlittermann.
71
bc4bc4c5
PP
72PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
73 Patch from Uwe Doering, sign-off by Michael Haardt.
74
2e64baa9
NM
75NM/05 Fix to spam.c to accommodate older gcc versions which dislike
76 variable declaration deep within a block. Bug and patch from
77 Dennis Davis.
78
aa097c4c 79
8c07b69f
TF
80Exim version 4.74
81-----------------
82
83TF/01 Failure to get a lock on a hints database can have serious
84 consequences so log it to the panic log.
85
c0ea85ab
TF
86TF/02 Log LMTP confirmation messages in the same way as SMTP,
87 controlled using the smtp_confirmation log selector.
88
0761d44e
TF
89TF/03 Include the error message when we fail to unlink a spool file.
90
0a349494
PP
91DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
92 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
93 for maintaining out-of-tree patches for some time.
94
95PP/01 Bugzilla 139: Documentation and portability issues.
96 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
97 Handle per-OS dynamic-module compilation flags.
98
fea24b2e
PP
99PP/02 Let /dev/null have normal permissions.
100 The 4.73 fixes were a little too stringent and complained about the
101 permissions on /dev/null. Exempt it from some checks.
102 Reported by Andreas M. Kirchwitz.
103
6545de78
PP
104PP/03 Report version information for many libraries, including
105 Exim version information for dynamically loaded libraries. Created
106 version.h, now support a version extension string for distributors
107 who patch heavily. Dynamic module ABI change.
108
1670ef10
PP
109PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
110 privilege escalation vulnerability whereby the Exim run-time user
111 can cause root to append content of the attacker's choosing to
112 arbitrary files.
113
c0886197
PP
114PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
115 (Wolfgang Breyha)
116
b7487bce
PP
117PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
118 If dropping privileges for untrusted macros, we disabled normal logging
119 on the basis that it would fail; for the Exim run-time user, this is not
120 the case, and it resulted in successful deliveries going unlogged.
121 Fixed. Reported by Andreas Metzler.
122
8c07b69f 123
97fd1e48 124Exim version 4.73
ed7f7860 125-----------------
97fd1e48
PP
126
127PP/01 Date: & Message-Id: revert to normally being appended to a message,
128 only prepend for the Resent-* case. Fixes regression introduced in
129 Exim 4.70 by NM/22 for Bugzilla 607.
130
6901c596
PP
131PP/02 Include check_rfc2047_length in configure.default because we're seeing
132 increasing numbers of administrators be bitten by this.
133
a8c8d6b5
JJ
134JJ/01 Added DISABLE_DKIM and comment to src/EDITME
135
77bb000f
PP
136PP/03 Bugzilla 994: added openssl_options main configuration option.
137
a29e5231
PP
138PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
139
ec5a0394 140PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 141
55c75993
PP
142PP/06 Adjust NTLM authentication to handle SASL Initial Response.
143
453a6645 144PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
145 without a peer certificate, leading to a segfault because of an
146 assumption that peers always have certificates. Be a little more
453a6645
PP
147 paranoid. Problem reported by Martin Tscholak.
148
8544e77a
PP
149PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
150 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
151 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
152 CL also introduces -bmalware, various -d+acl logging additions and
153 more caution in buffer sizes.
8544e77a 154
83e029d5
PP
155PP/09 Implemented reverse_ip expansion operator.
156
ed7f7860
PP
157PP/10 Bugzilla 937: provide a "debug" ACL control.
158
7d9f747b
PP
159PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
160
4b2241d2
PP
161PP/12 Bugzilla 973: Implement --version.
162
10385c15
PP
163PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
164
dbc4b90d
PP
165PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
166
532be449
PP
167PP/15 Bugzilla 816: support multiple condition rules on Routers.
168
6a8de854 169PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
170 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
171 ignore trailing whitespace.
6a8de854 172
5dc43717
JJ
173JJ/02 prevent non-panic DKIM error from being sent to paniclog
174
175JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
176 "exim" to be used
55c75993 177
3346ab01
PP
178PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
179 Notification from Dr Andrew Aitchison.
180
491fab4c
PP
181PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
182 ExtendedDetectionInfo response format.
183 Notification from John Horne.
184
13eb9497
PP
185PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
186 compatible.
187
188PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
189 XSL and documented dependency on system catalogs, with examples of how
190 it normally works.
191
7f36d675
DW
192DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
193 access.
194
c1d94452
DW
195DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
196 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
197 configuration file which is writeable by the Exim user or group.
198
e2f5dc15
DW
199DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
200 of configuration files to cover files specified with the -C option if
201 they are going to be used with root privileges, not just the default
202 configuration file.
203
cd25e41d
DW
204DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
205 option (effectively making it always true).
206
261dc43e
DW
207DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
208 files to be used while preserving root privileges.
209
fa32850b
DW
210DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
211 that rogue child processes cannot use them.
212
79d4bc3d
PP
213PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
214 run-time user, instead of root.
215
2cfd3221
PP
216PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
217 Exim run-time user without dropping privileges.
218
fb08281f
DW
219DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
220 result string, instead of calling string_vformat() twice with the same
221 arguments.
3346ab01 222
74935b98
DW
223DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
224 for other users. Others should always drop root privileges if they use
225 -C on the command line, even for a whitelisted configure file.
226
90b6341f
DW
227DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
228
57730b52
ML
229NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
230
66581d1e 231
465e92cf
JJ
232Exim version 4.72
233-----------------
234
453a6645
PP
235JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
236 $data_path, and $header_path variables; fixed documentation bugs and
237 typos
465e92cf 238
453a6645
PP
239JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
240 exipick to access non-standard spools, including the "frozen" queue
241 (Finput)
edae0343 242
9bd3e22c
NM
243NM/01 Bugzilla 965: Support mysql stored procedures.
244 Patch from Alain Williams
245
bb576ff7
NM
246NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
247
5a1a5845
NM
248NM/03 Bugzilla 955: Documentation fix for max_rcpts.
249 Patch from Andreas Metzler
250
981a9fad
NM
251NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
252 Patch from Kirill Miazine
253
7fc497ee
NM
254NM/05 Bugzilla 671: Added umask to procmail example.
255
1a41defa
JJ
256JJ/03 installed exipick 20100323.0, fixing doc bug
257
a466095c 258NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 259 directory. Notification and patch from Dan Rosenberg.
a466095c 260
94a6bd0b
NM
261TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
262
263TK/02 Improve log output when DKIM signing operation fails.
264
265MH/01 Treat the transport option dkim_domain as a colon separated
266 list, not as a single string, and sign the message with each element,
267 omitting multiple occurences of the same signer.
268
c1b141a8
NM
269NM/07 Null terminate DKIM strings, Null initialise DKIM variable
270 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 271
b26eacf1 272NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
273 Patch by Simon Arlott
274
179c5980 275PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 276 MBX locking. Notification from Dan Rosenberg.
179c5980 277
9bd3e22c 278
7c6d71af
NM
279Exim version 4.71
280-----------------
281
7d9f747b 282TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 283
f013fb92
NM
284NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
285
0eb8eedd
NM
286NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
287
663ee6d9
NM
288NM/03 Bugzilla 847: Enable DNSDB lookup by default.
289
177ebd9b
NM
290NM/04 Bugzilla 915: Flag broken perl installation during build.
291
7c6d71af 292
210f147e
NM
293Exim version 4.70
294-----------------
295
cdd3bb85 296TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 297 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
298
299TK/02 Write list of recipients to X-Envelope-Sender header when building
300 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 301 Hirsch).
cdd3bb85
TK
302
303TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
304 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 305 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
306
307TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
308 by Mark Daniel Reidel <mr@df.eu>.
309
210f147e
NM
310NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
311 When building exim an external PCRE library is now needed -
312 PCRE is a system library on the majority of modern systems.
313 See entry on PCRE_LIBS in EDITME file.
314
deafd5b3
NM
315NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
316 conversation. Added nologin parameter to request.
7d9f747b 317 Patch contributed by Kirill Miazine.
deafd5b3 318
089793a4
TF
319TF/01 Do not log submission mode rewrites if they do not change the address.
320
5f16ca82
TF
321TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
322
dae9d94e 323NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 324 log files in place. Contributed by Roberto Lima.
dae9d94e 325
7d9f747b 326NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 327
06864c44
TF
328TF/03 Bugzilla 615: When checking the local_parts router precondition
329 after a local_part_suffix or local_part_prefix option, Exim now
330 does not use the address's named list lookup cache, since this
331 contains cached lookups for the whole local part.
332
65a7d8c3 333NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 334 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 335
23510047 336TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 337
7d9f747b 338NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 339
7d8eec3a 340NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 341 Patch provided by Jan Srzednicki.
6c588e74 342
89dec7b6
TF
343TF/05 Leading white space used to be stripped from $spam_report which
344 wrecked the formatting. Now it is preserved.
5f28a6e8 345
a99de90c
TF
346TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
347 that they are available at delivery time.
348
e2803e40
TF
349TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
350
7199e1ee
TF
351TF/08 TLS error reporting now respects the incoming_interface and
352 incoming_port log selectors.
353
e276e04b
TF
354TF/09 Produce a more useful error message if an SMTP transport's hosts
355 setting expands to an empty string.
356
ce552449 357NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 358 Patch provided by Phil Pennock.
ce552449 359
e765a0f1 360NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 361 Patch provided by Richard Godbee.
e765a0f1 362
4f054c63 363NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 364 acl_smtp_notquit, added index entry.
4f054c63 365
7d9f747b
PP
366NM/09 Bugzilla 787: Potential buffer overflow in string_format.
367 Patch provided by Eugene Bujak.
24c929a2 368
7d9f747b
PP
369NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
370 accept(). Patch provided by Maxim Dounin.
cf73943b 371
b52bc06e 372NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 373 Patch provided by Phil Pennock.
b52bc06e 374
447de4b0
NM
375NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
376
4c69d561 377NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 378 Patch provided by Brad "anomie" Jorsch.
4c69d561 379
d5c39246 380NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 381 Patch provided by Dean Brooks.
9b989985 382
0b23848a
TK
383TK/05 Add native DKIM support (does not depend on external libraries).
384
8f3414a1 385NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 386 Patch provided by Graeme Fowler.
e2aacdfd 387
fb6f955d
NM
388NM/16 Bugzilla 851: Documentation example syntax fix.
389
390NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 391
7d9f747b
PP
392NM/18 Bugzilla 894: Fix issue with very long lines including comments in
393 lsearch.
dbb0bf41 394
7d9f747b
PP
395NM/19 Bugzilla 745: TLS version reporting.
396 Patch provided by Phil Pennock.
f3766eb5 397
7d9f747b
PP
398NM/20 Bugzilla 167: bool: condition support.
399 Patch provided by Phil Pennock.
36f12725 400
7d9f747b
PP
401NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
402 clients. Patch provided by Phil Pennock.
e6060e2c 403
7d9f747b
PP
404NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
405 Patch provided by Brad "anomie" Jorsch.
5eb690a1 406
7d9f747b
PP
407NM/23 Bugzilla 687: Fix misparses in eximstats.
408 Patch provided by Heiko Schlittermann.
d5c13d66 409
7d9f747b
PP
410NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
411 Patch provided by Heiko Schlittermann.
b2335c0b 412
7d9f747b 413NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 414 plus update to original patch.
f4cd9433 415
7d9f747b 416NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 417
7d9f747b
PP
418NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
419 Patch provided by David Brownlee.
8dc71ab3 420
7d9f747b 421NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 422
7d9f747b 423NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 424
7d9f747b 425NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 426
7d9f747b 427NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 428
17792b53 429NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 430 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 431
7d9f747b
PP
432NM/33 Bugzilla 898: Transport filter timeout fix.
433 Patch by Todd Rinaldo.
52383f8f 434
7d9f747b
PP
435NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
436 Patch by Serge Demonchaux.
5ca6d115 437
7d9f747b
PP
438NM/35 Bugzilla 39: Base64 decode bug fixes.
439 Patch by Jakob Hirsch.
baee9eee 440
7d9f747b 441NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 442
7d9f747b 443NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 444
7d9f747b 445NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 446
7d9f747b 447NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 448
deafd5b3 449
47db1125
NM
450Exim version 4.69
451-----------------
452
4b3504d0
TK
453TK/01 Add preliminary DKIM support. Currently requires a forked version of
454 ALT-N's libdkim that I have put here:
455 http://duncanthrax.net/exim-experimental/
456
457 Note to Michael Haardt: I had to rename some vars in sieve.c. They
458 were called 'true' and it seems that C99 defines that as a reserved
459 keyword to be used with 'bool' variable types. That means you could
460 not include C99-style headers which use bools without triggering
461 build errors in sieve.c.
462
81ea09ca
NM
463NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
464 as mailq or other aliases. Changed the --help handling significantly
465 to do whats expected. exim_usage() emits usage/help information.
466
f13cddcb
SC
467SC/01 Added the -bylocaldomain option to eximstats.
468
7d9f747b 469NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 470
7d9f747b 471NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 472
7d9f747b 473NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
474
475
eb4c0de6
PH
476Exim version 4.68
477-----------------
478
479PH/01 Another patch from the Sieve maintainer.
480
6a3bceb1
PH
481PH/02 When an IPv6 address is converted to a string for single-key lookup
482 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
483 dots are used instead of colons so that keys in lsearch files need not
484 contain colons. This was done some time before quoting was made available
485 in lsearch files. However, iplsearch files do require colons in IPv6 keys
486 (notated using the quote facility) so as to distinguish them from IPv4
487 keys. This meant that lookups for IP addresses in host lists did not work
488 for iplsearch lookups.
489
490 This has been fixed by arranging for IPv6 addresses to be expressed with
491 colons if the lookup type is iplsearch. This is not incompatible, because
492 previously such lookups could never work.
493
494 The situation is now rather anomolous, since one *can* have colons in
495 ordinary lsearch keys. However, making the change in all cases is
496 incompatible and would probably break a number of configurations.
497
2e30fa9d
TK
498TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
499 version.
500
0806a9c5
MH
501MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
502 conversion specification without a maximum field width, thereby enabling
503 a rogue spamd server to cause a buffer overflow. While nobody in their
504 right mind would setup Exim to query an untrusted spamd server, an
505 attacker that gains access to a server running spamd could potentially
506 exploit this vulnerability to run arbitrary code as the Exim user.
507
ae276964
TK
508TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
509 $primary_hostname instead of what libspf2 thinks the hosts name is.
510
0f2cbd1b
MH
511MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
512 a directory entry by the name of the lookup key. Previously, if a
513 symlink pointed to a non-existing file or a file in a directory that
514 Exim lacked permissions to read, a lookup for a key matching that
515 symlink would fail. Now it is enough that a matching directory entry
516 exists, symlink or not. (Bugzilla 503.)
517
2b85bce7
PH
518PH/03 The body_linecount and body_zerocount variables are now exported in the
519 local_scan API.
520
93655c46
PH
521PH/04 Added the $dnslist_matched variable.
522
6c512171
PH
523PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
524 This means they are set thereafter only if the connection becomes
525 encrypted.
526
527PH/06 Added the client_condition to authenticators so that some can be skipped
528 by clients under certain conditions.
529
aa6dc513
PH
530PH/07 The error message for a badly-placed control=no_multiline_responses left
531 "_responses" off the end of the name.
532
a96603a0
PH
533PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
534
8f240103
PH
535PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
536 (without spaces) instead of just copying the configuration text.
537
538PH/10 Added the /noupdate option to the ratelimit ACL condition.
539
d677b2f2
PH
540PH/11 Added $max_received_linelength.
541
d52120f2
PH
542PH/12 Added +ignore_defer and +include_defer to host lists.
543
64f2600a
PH
544PH/13 Installed PCRE version 7.2. This needed some changes because of the new
545 way in which PCRE > 7.0 is built.
546
8669f003
PH
547PH/14 Implemented queue_only_load_latch.
548
a4dc33a8
PH
549PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
550 MAIL command. The effect was to mangle the value on 64-bit systems.
551
d6a60c0f
PH
552PH/16 Another patch from the Sieve maintainer.
553
8f128379
PH
554PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
555
8932dffe
PH
556PH/18 If a system quota error occurred while trying to create the file for
557 a maildir delivery, the message "Mailbox is full" was not appended to the
558 bounce if the delivery eventually timed out. Change 4.67/27 below applied
559 only to a quota excession during the actual writing of the file.
d6a60c0f 560
ddea74fa 561PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
562 characters?) which causes problems in log lines. The DN values are now
563 passed through string_printing() before being added to log lines.
564
ddea74fa 565PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
566 and InterBase are left for another time.)
567
ddea74fa
PH
568PH/21 Added message_body_newlines option.
569
ce9f225c
PH
570PH/22 Guard against possible overflow in moan_check_errorcopy().
571
19897d52
PH
572PH/23 POSIX allows open() to be a macro; guard against that.
573
bc64a74d
PH
574PH/24 If the recipient of an error message contained an @ in the local part
575 (suitably quoted, of course), incorrect values were put in $domain and
576 $local_part during the evaluation of errors_copy.
577
eb4c0de6 578
b4ed4da0
PH
579Exim version 4.67
580-----------------
581
22ad45c9
MH
582MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
583 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
584 Jan Srzednicki.
585
b4ed4da0
PH
586PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
587 issue a MAIL command.
588
431b7361
PH
589PH/02 In an ACL statement such as
590
591 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
592
593 if a client was not listed at all, or was listed with a value other than
594 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
595 the condition was not true (as it should be), so access was not denied.
596 The bug was that the ! inversion was incorrectly passed on to the second
597 item. This has been fixed.
598
599PH/03 Added additional dnslists conditions == and =& which are different from
600 = and & when the dns lookup returns more than one IP address.
601
83da1223
PH
602PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
603 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
604
54fc8428
PH
605PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
606 FSYNC, which compiles an option called disable_fsync that allows for
607 bypassing fsync(). The documentation is heavily laced with warnings.
608
34c5e8dd
SC
609SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
610
bbe15da8
PH
611PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
612 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
613 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
614 including adding "make clean"; (3) Added -fPIC when compiling the test
615 dynamically loaded module, to get rid of a warning.
616
0e8a9471
MH
617MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
618 message fails, move_frozen_messages = true and ignore_bounce_errors_after
619 = 0s. The bug is otherwise harmless.
620
f0872424
PH
621PH/07 There was a bug in the dovecot authenticator such that the value of
622 $auth1 could be overwritten, and so not correctly preserved, after a
623 successful authentication. This usually meant that the value preserved by
624 the server_setid option was incorrect.
625
b01dd148
PH
626PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
627
6bf342e1
PH
628PH/09 Installed PCRE release 7.0.
629
273f34d0
PH
630PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
631 run for batched SMTP input. It is now run at the start of every message
632 in the batch. While fixing this I discovered that the process information
633 (output by running exiwhat) was not always getting set for -bs and -bS
634 input. This is fixed, and it now also says "batched" for BSMTP.
635
cf8b11a5
PH
636PH/11 Added control=no_pipelining.
637
41c7c167
PH
638PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
639 patch, slightly modified), and move the expansion of helo_data till after
640 the connection is made in the smtp transport (so it can use these
641 values).
642
9c57cbc0
PH
643PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
644
f3f065bb
PH
645PH/14 Added log_selector = +pid.
646
047bdd8c
PH
647PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
648
0ce9abe6
PH
649PH/16 Add ${if forany and ${if forall.
650
0e22dfd1
PH
651PH/17 Added dsn_from option to vary the From: line in DSNs.
652
4c590bd1
PH
653PH/18 Flush SMTP output before performing a callout, unless control =
654 no_callout_flush is set.
655
09945f1e
PH
656PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
657 was true (the default) a successful delivery failed to delete the retry
658 item, thus causing premature timeout of the address. The bug is now
659 fixed.
660
c51b8e75
PH
661PH/20 Added hosts_avoid_pipelining to the smtp transport.
662
e28326d8
PH
663PH/21 Long custom messages for fakedefer and fakereject are now split up
664 into multiline reponses in the same way that messages for "deny" and
665 other ACL rejections are.
666
75b1493f
PH
667PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
668 with slight modification.
669
7c5214ec
PH
670PH/23 Applied sieve patches from the maintainer "tracking the latest notify
671 draft, changing the syntax and factoring some duplicate code".
672
4311097e
PH
673PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
674 for deliveries of the second and subsequent messages over the same SMTP
675 connection.
676
29f89cad
PH
677PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
678 ${reduce, with only minor "tidies".
679
5e687460
SC
680SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
681
c3611384
PH
682PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
683 expansion side effects.
684
5a11a7b4
PH
685PH/27 When a message times out after an over-quota error from an Exim-imposed
686 quota, the bounce message says "mailbox is full". This message was not
687 being given when it was a system quota that was exceeded. It now should
688 be the same.
689
0e20aff9
MH
690MH/03 Made $recipients available in local_scan(). local_scan() already has
691 better access to the recipient list through recipients_list[], but
692 $recipients can be useful in postmaster-provided expansion strings.
693
ca86f471
PH
694PH/28 The $smtp_command and $smtp_command_argument variables were not correct
695 in the case of a MAIL command with additional options following the
696 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
697 were accidentally chopped off.
698
a14e5636
PH
699PH/29 SMTP synchronization checks are implemented when a command is read -
700 there is a check that no more input is waiting when there shouldn't be
701 any. However, for some commands, a delay in an ACL can mean that it is
702 some time before the response is written. In this time, more input might
703 arrive, invalidly. So now there are extra checks after an ACL has run for
704 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
705 pipelining has not been advertised.
706
ec95d1a6
PH
707PH/30 MH's patch to allow iscntrl() characters to be list separators.
708
42855d71
PH
709PH/31 Unlike :fail:, a custom message specified with :defer: was not being
710 returned in the SMTP response when smtp_return_error_details was false.
711 This has been fixed.
712
57c2c631
PH
713PH/32 Change the Dovecot authenticator to use read() and write() on the socket
714 instead of the C I/O that was originally supplied, because problems were
715 reported on Solaris.
716
58c01c94
PH
717PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
718 Exim which did not show up earlier: it was assuming that a call to
719 SSL_CTX_set_info_callback() might give an error value. In fact, there is
720 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
721 was a macro that became an assignment, so it seemed to work. This has
722 changed to a proper function call with a void return, hence the compile
723 error. Exim's code has been fixed.
724
dee5a20a
PH
725PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
726 cpus.
727
d2ee6114
PH
728PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
729
b2d5182b
PH
730PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
731
79749a79
PH
732PH/37 If a message is not accepted after it has had an id assigned (e.g.
733 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
734 "Completed" line in the log. When some messages of this type were
735 selected by exigrep, they were listed as "not completed". Others were
736 picked up by some special patterns. I have improved the selection
737 criteria to be more general.
79749a79 738
c456d9bb
PH
739PH/38 The host_find_failed option in the manualroute router can now be set
740 to "ignore", to completely ignore a host whose IP address cannot be
741 found. If all hosts are ignored, the behaviour is controlled by the new
742 host_all_ignored option.
743
cd9868ec
PH
744PH/39 In a list of hosts for manualroute, if one item (either because of multi-
745 homing or because of multiple MX records with /mx) generated more than
746 one IP address, and the following item turned out to be the local host,
747 all the secondary addresses of the first item were incorrectly removed
748 from the list, along with the local host and any following hosts (which
749 is what is supposed to happen).
750
ebeaf996
PH
751PH/40 When Exim receives a message, it writes the login name, uid, and gid of
752 whoever called Exim into the -H file. In the case of the daemon it was
753 behaving confusingly. When first started, it used values for whoever
754 started the daemon, but after a SIGHUP it used the Exim user (because it
755 calls itself on a restart). I have changed the code so that it now always
756 uses the Exim user.
757
2679d413
PH
758PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
759 message are rejected with the same error (e.g. no authentication or bad
760 sender address), and a DATA command is nevertheless sent (as can happen
761 with PIPELINING or a stupid MUA), the error message that was given to the
762 RCPT commands is included in the rejection of the DATA command. This is
763 intended to be helpful for MUAs that show only the final error to their
764 users.
765
84024b72
PH
766PH/42 Another patch from the Sieve maintainer.
767
8005d38e
SC
768SC/02 Eximstats - Differentiate between permanent and temporary rejects.
769 Eximstats - Fixed some broken HTML links and added missing column headers
770 (Jez Hancock).
771 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
772 columns for Rejects, Temp Rejects, Ham, and Spam rows.
773
3298c6c6
SC
774SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
775
a43a27c5
PH
776PH/43 Yet another patch from the Sieve maintainer.
777
58eb016e 778PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
779 the response to the final '.' that terminates a message, but only in the
780 case where the client has not sent further data following the '.'
781 (unfortunately, this is allowed). However, in many cases there won't be
782 any further data because there won't be any more messages to send. A call
783 to select() can be used: if it shows that the input is "ready", there is
784 either input waiting, or the socket has been closed. An attempt to read
785 the next input character can distinguish the two cases. Previously, Exim
58eb016e 786 would have sent an OK response which the client would never have see.
563b63fa
PH
787 This could lead to message repetition. This fix should cure that, at
788 least in a lot of common cases.
58eb016e 789
b43a74ea
PH
790PH/45 Do not advertise STARTTLS in response to HELP unless it would be
791 advertised in response to EHLO.
792
b4ed4da0 793
5dd1517f
PH
794Exim version 4.66
795-----------------
796
797PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
798 fixed by 4.65/MH/01 (is this a record?) are fixed:
799
800 (i) An empty string was always treated as zero by the numeric comparison
801 operators. This behaviour has been restored.
802
803 (ii) It is documented that the numeric comparison operators always treat
804 their arguments as decimal numbers. This was broken in that numbers
805 starting with 0 were being interpreted as octal.
806
807 While fixing these problems I realized that there was another issue that
808 hadn't been noticed. Values of message_size_limit (both the global option
809 and the transport option) were treated as octal if they started with 0.
810 The documentation was vague. These values are now always treated as
811 decimal, and I will make that clear in the documentation.
812
813
93cfa765
TK
814Exim version 4.65
815-----------------
816
817TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
818 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
819 versions. (#438)
820
d6066548
MH
821MH/01 Don't check that the operands of numeric comparison operators are
822 integers when their expansion is in "skipping" mode (fixes bug
823 introduced by 4.64-PH/07).
824
4362ff0d
PH
825PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
826 child addresses, Exim now panics and dies. Previously, because the count
827 is held in a short int, deliveries were likely to be lost. As such a
828 large number of recipients for a single message is ridiculous
829 (performance will be very, very poor), I have chosen to impose a limit
830 rather than extend the field.
831
93cfa765 832
944e9e9c
TF
833Exim version 4.64
834-----------------
aa41d2de 835
21d74bd9
TK
836TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
837 leftover -K file (the existence of which was triggered by #402).
838 While we were at it, introduced process PID as part of the -K
839 filename. This should rule out race conditions when creating
840 these files.
841
842TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
843 processing considerably. Previous code took too long for large mails,
844 triggering a timeout which in turn triggers #401.
845
846TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
847 in the DK code in transports.c. sendfile() is not really portable,
848 hence the _LINUX specificness.
944e9e9c
TF
849
850TF/01 In the add_headers option to the mail command in an Exim filter,
851 there was a bug that Exim would claim a syntax error in any
852 header after the first one which had an odd number of characters
853 in the field name.
854
2b1c6e3a
PH
855PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
856 callout verification, Exim cached a "reject" for the entire domain. This
857 is correct for most verifications, but it is not correct for a recipient
858 verification with use_sender or use_postmaster set, because in that case
859 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
860 case of MAIL FROM:<> rejection from other early rejections (e.g.
861 rejection of HELO). When verifying a recipient using a non-null MAIL
862 address, the cache is ignored if it shows MAIL FROM:<> rejection.
863 Whatever the result of the callout, the value of the domain cache is
864 left unchanged (for any other kind of callout, getting as far as trying
865 RCPT means that the domain itself is ok).
866
1f872c80
PH
867PH/02 Tidied a number of unused variable and signed/unsigned warnings that
868 gcc 4.1.1 threw up.
869
870PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
871 manifest itself as EPIPE rather than ECONNECT. When tidying away a
872 session, the daemon ignores ECONNECT errors and logs others; it now
873 ignores EPIPE as well.
874
d203e649
PH
875PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
876 (quoted-printable decoding).
877
cc2ed8f7 878PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 879 later the small subsequent patch to fix an introduced bug.
f951fd57 880
ddfcd446
PH
881PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
882
d45b1de8
PH
883PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
884
885PH/08 An error is now given if message_size_limit is specified negative.
886
38a0a95f 887PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 888 to be given (somewhat) arbitrary names.
38a0a95f 889
a2405d83
JJ
890JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
891 in 4.64-PH/09.
892
893JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
894 miscellaneous code fixes
895
6ea85e9a
PH
896PH/10 Added the log_reject_target ACL modifier to specify where to log
897 rejections.
898
26da7e20
PH
899PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
900 hostname. This is wrong, because it relates to the incoming message (and
901 probably the interface on which it is arriving) and not to the outgoing
902 callout (which could be using a different interface). This has been
903 changed to use the value of the helo_data option from the smtp transport
904 instead - this is what is used when a message is actually being sent. If
905 there is no remote transport (possible with a router that sets up host
906 addresses), $smtp_active_hostname is used.
6ea85e9a 907
14aa5a05 908PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 909 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
910 (a) The code assumed that strncpy() returns a negative number on buffer
911 overflow, which isn't the case. Replaced with Exim's string_format()
912 function.
913 (b) There were several signed/unsigned issues. I just did the minimum
914 hacking in of casts. There is scope for a larger refactoring.
915 (c) The code used strcasecmp() which is not a standard C function.
916 Replaced with Exim's strcmpic() function.
917 (d) The code set only $1; it now sets $auth1 as well.
918 (e) A simple test gave the error "authentication client didn't specify
919 service in request". It would seem that Dovecot has changed its
920 interface. Fortunately there's a specification; I followed it and
921 changed what the client sends and it appears to be working now.
922
ff75a1f7
PH
923PH/13 Added $message_headers_raw to provide the headers without RFC 2047
924 decoding.
925
e6f6568e
PH
926PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
927 address A is aliased to B and C, where B exists and C does not. Without
928 -v the output is "A verified" because verification stops after a
929 successful redirection if more than one address is generated. However,
930 with -v the child addresses are also verified. Exim was outputting "A
931 failed to verify" and then showing the successful verification for C,
932 with its parentage. It now outputs "B failed to verify", showing B's
933 parentage before showing the successful verification of C.
934
d6f6e0dc
PH
935PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
936 look up a TXT record in a specific list after matching in a combined
937 list.
938
322050c2
PH
939PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
940 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
941 they consult the DNS. I had assumed they would set it the way they
942 wanted; and indeed my experiments on Linux seem to show that in some
943 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
944 To be on the safe side, however, I have now made the interface to
945 host_find_byname() similar to host_find_bydns(), with an argument
946 containing the DNS resolver options. The host_find_byname() function now
947 sets these options at its start, just as host_find_bydns() does. The smtp
948 transport options dns_qualify_single and dns_search_parents are passed to
949 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
950 of host_find_byname() use the default settings of RES_DEFNAMES
951 (qualify_single) but not RES_DNSRCH (search_parents).
952
08955dd3
PH
953PH/17 Applied (a modified version of) Nico Erfurth's patch to make
954 spool_read_header() do less string testing, by means of a preliminary
955 switch on the second character of optional "-foo" lines. (This is
956 overdue, caused by the large number of possibilities that now exist.
957 Originally there were few.) While I was there, I also converted the
958 str(n)cmp tests so they don't re-test the leading "-" and the first
959 character, in the hope this might squeeze out yet more improvement.
960
1eccaa59
PH
961PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
962 flag allowing group syntax was set by the header_syntax check but not
963 turned off, possible causing trouble later; (2) The flag was not being
964 set at all for the header_verify test, causing "group"-style headers to
965 be rejected. I have now set it in this case, and also caused header_
966 verify to ignore an empty address taken from a group. While doing this, I
967 came across some other cases where the code for allowing group syntax
968 while scanning a header line wasn't quite right (mostly, not resetting
969 the flag correctly in the right place). These bugs could have caused
970 trouble for malformed header lines. I hope it is now all correct.
971
602e59e5
PH
972PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
973 with the "reply" argument non-NULL. The code, however (which originally
974 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
975 but it didn't always do it. This confused somebody who was copying the
976 code for some other use. I have removed all the tests.
977
411ef850
PH
978PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
979 feature that was used to support insecure browsers during the U.S. crypto
980 embargo. It requires special client support, and Exim is probably the
981 only MTA that supported it -- and would never use it because real RSA is
982 always available. This code has been removed, because it had the bad
983 effect of slowing Exim down by computing (never used) parameters for the
984 RSA_EXPORT functionality.
985
7befa435
PH
986PH/21 On the advice of Timo Sirainen, added a check to the dovecot
987 authenticator to fail if there's a tab character in the incoming data
988 (there should never be unless someone is messing about, as it's supposed
989 to be base64-encoded). Also added, on Timo's advice, the "secured" option
990 if the connection is using TLS or if the remote IP is the same as the
991 local IP, and the "valid-client-cert option" if a client certificate has
992 been verified.
993
48da4259 994PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
995 authenticators. This can be used for authorization after authentication
996 succeeds. (In the case of plaintext, it servers for both authentication
997 and authorization.)
998
48da4259
PH
999PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1000 if any retry times were supplied.
1001
d1d5595c
PH
1002PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1003 connection, where there is no client IP address to check. In this
1004 situation, the verify now always succeeds.
1005
0ef732d9
PH
1006PH/25 Applied John Jetmore's -Mset patch.
1007
328895cc
PH
1008PH/26 Added -bem to be like -Mset, but loading a message from a file.
1009
fd700877
PH
1010PH/27 In a string expansion for a processed (not raw) header when multiple
1011 headers of the same name were present, leading whitespace was being
1012 removed from all of them, but trailing whitespace was being removed only
1013 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1014 before concatenation. Completely empty headers in a concatenation (as
1015 before) are ignored.
fd700877 1016
8dce1a6f
PH
1017PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1018 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1019
17af4a17
PH
1020PH/29 [Removed. This was a change that I later backed out, and forgot to
1021 correct the ChangeLog entry (that I had efficiently created) before
1022 committing the later change.]
f6c332bd
PH
1023
1024PH/30 Exim was sometimes attempting to deliver messages that had suffered
1025 address errors (4xx response to RCPT) over the same connection as other
1026 messages routed to the same hosts. Such deliveries are always "forced",
1027 so retry times are not inspected. This resulted in far too many retries
1028 for the affected addresses. The effect occurred only when there were more
1029 hosts than the hosts_max_try setting in the smtp transport when it had
1030 the 4xx errors. Those hosts that it had tried were not added to the list
1031 of hosts for which the message was waiting, so if all were tried, there
1032 was no problem. Two fixes have been applied:
1033
1034 (i) If there are any address or message errors in an SMTP delivery, none
1035 of the hosts (tried or untried) are now added to the list of hosts
1036 for which the message is waiting, so the message should not be a
1037 candidate for sending over the same connection that was used for a
1038 successful delivery of some other message. This seems entirely
1039 reasonable: after all the message is NOT "waiting for some host".
1040 This is so "obvious" that I'm not sure why it wasn't done
1041 previously. Hope I haven't missed anything, but it can't do any
1042 harm, as the worst effect is to miss an optimization.
1043
1044 (ii) If, despite (i), such a delivery is accidentally attempted, the
1045 routing retry time is respected, so at least it doesn't keep
1046 hammering the server.
1047
c1114884
PH
1048PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1049 in ${readsocket because some servers need this prod.
1050
7a0743eb
PH
1051PH/32 Added some extra debug output when updating a wait-xxx database.
1052
0d85fa3f
PH
1053PH/33 The hint "could be header name not terminated by colon", which has been
1054 given for certain expansion errors for a long time, was not being given
1055 for the ${if def:h_colon_omitted{... case.
1056
1bf43b78
PH
1057PH/34 The spec says: "With one important exception, whenever a domain list is
1058 being scanned, $domain contains the subject domain." There was at least
1059 one case where this was not true.
1060
520de300
PH
1061PH/35 The error "getsockname() failed: connection reset by peer" was being
1062 written to the panic log as well as the main log, but it isn't really
1063 panic-worthy as it just means the connection died rather early on. I have
1064 removed the panic log writing for the ECONNRESET error when getsockname()
1065 fails.
1066
48c7f9e2
PH
1067PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1068 runs only) independently of the message's sender address. This meant
1069 that, if the 4xx error was in fact related to the sender, a different
1070 message to the same recipient with a different sender could confuse
1071 things. In particualar, this can happen when sending to a greylisting
1072 server, but other circumstances could also provoke similar problems.
1073 I have changed the default so that the retry time for these errors is now
1074 based a combination of the sender and recipient addresses. This change
1075 can be overridden by setting address_retry_include_sender=false in the
1076 smtp transport.
1077
99ea1c86
PH
1078PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1079 remote server are returned as part of bounce messages. This was not
1080 happening for LMTP over a pipe (the lmtp transport), but now it is the
1081 same for both kinds of LMTP.
1082
a2042e78
PH
1083PH/38 Despite being documented as not happening, Exim was rewriting addresses
1084 in header lines that were in fact CNAMEs. This is no longer the case.
1085
4fbcfc2e
PH
1086PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1087 and queue runs started by the daemon processed all messages. This has
1088 been fixed so that -R and -S can now usefully be given with -q<time>.
1089
aa41d2de
PH
1090PH/40 Import PCRE release 6.7 (fixes some bugs).
1091
af561417
PH
1092PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1093
3cc66b45
PH
1094PH/42 Give an error if -q is specified more than once.
1095
194cc0e4
PH
1096PH/43 Renamed the variables $interface_address and $interface_port as
1097 $received_ip_address and $received_port, to make it clear that these
1098 values apply to message reception, and not to the outgoing interface when
1099 a message is delivered. (The old names remain recognized, of course.)
1100
a401ddaa
PH
1101PH/44 There was no timeout on the connect() call when using a Unix domain
1102 socket in the ${readsocket expansion. There now is.
1103
4e88a19f
PH
1104PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1105 be meaningful with "accept".
1106
d7d7b289
SC
1107SC/01 Eximstats V1.43
1108 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1109
1110SC/02 Eximstats V1.44
1111 Use a glob alias rather than an array ref in the generated
1112 parser. This improves both readability and performance.
1113
1114SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1115 Collect SpamAssassin and rejection statistics.
1116 Don't display local sender or destination tables unless
1117 there is data to show.
1118 Added average volumes into the top table text output.
1119
1120SC/04 Eximstats V1.46
1121 Collect data on the number of addresses (recipients)
1122 as well as the number of messages.
1123
1124SC/05 Eximstats V1.47
1125 Added 'Message too big' to the list of mail rejection
1126 reasons (thanks to Marco Gaiarin).
1127
1128SC/06 Eximstats V1.48
1129 Mainlog lines which have GMT offsets and are too short to
1130 have a flag are now skipped.
1131
1132SC/07 Eximstats V1.49 (Alain Williams)
1133 Added the -emptyok flag.
1134
1135SC/08 Eximstats V1.50
1136 Fixes for obtaining the IP address from reject messages.
1137
0ea2a468
JJ
1138JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1139 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1140 whitesspace changes from 4.64-PH/27
1141
1142JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1143 match 4.64-PH/13
1144
1145JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1146 are found, allow negative numbers in numeric criteria)
1147
1148JJ/06 exipick.20061117.2, added new $message_body_missing variable
1149
1150JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1151 to match changes made in 4.64-PH/43
1152
8a10f5a4
PH
1153PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1154
30e18802
PH
1155PH/47 Put in an explicit test for a DNS lookup of an address record where the
1156 "domain" is actually an IP address, and force a failure. This locks out
1157 those revolvers/nameservers that support "A-for-A" lookups, in
1158 contravention of the specifications.
1159
55728a4f
PH
1160PH/48 When a host name was looked up from an IP address, and the subsequent
1161 forward lookup of the name timed out, the host name was left in
1162 $sender_host_name, contrary to the specification.
d7d7b289 1163
d7837193
PH
1164PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1165 restricted to single-key lookups, Exim was not diagnosing an error if
1166 * or *@ was used with a query-style lookup.
1167
87054a31
PH
1168PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1169
ea2c01d2
MH
1170MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1171 long ago, but noone interested enough thought of it. Let's just say that
1172 the "1.1" means that there are some new functions that weren't there at
1173 some point in the past.
1174
e4fa6968
PH
1175PH/51 Error processing for expansion failure of helo_data from an smtp
1176 transport during callout processing was broken.
1177
56f5d9bd
PH
1178PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1179 tested/used via the -bh/-bhc/-bs options.
1180
922e1c28
PH
1181PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1182 bug, fixed in subsequent PCRE releases).
1183
21eb6e72
PH
1184PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1185 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1186
a0540757
PH
1187PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1188
944e9e9c 1189
478be7b0
SC
1190Exim version 4.63
1191-----------------
1192
1193SC/01 Use a glob alias rather than an array ref in eximstats generated
1194 parser. This improves both readability and performance.
1195
1196SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1197 Don't display local sender or destination tables in eximstats unless
1198 there is data to show.
1199 Added average volumes into the eximstats top table text output.
1200
1201SC/03 Collect data on the number of addresses (recipients) as well
1202 as the number of messages in eximstats.
1203
2b965a65
TF
1204TF/01 Correct an error in the documentation for the redirect router. Exim
1205 does (usually) call initgroups() when daemonizing.
478be7b0 1206
45b91596
PH
1207TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1208 with consistent privilege compared to when running as a daemon.
478be7b0 1209
c59f5781
TF
1210TF/03 Note in the spec that $authenticated_id is not set for local
1211 submissions from trusted users.
1212
90fc3069
TF
1213TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1214 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1215
6083aca0
TF
1216TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1217 by adding some example configuration directives to the default
1218 configuration file. A little bit of work is required to uncomment the
1219 directives and define how usernames and passwords are checked, but
1220 there is now a framework to start from.
1221
765b530f
PH
1222PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1223 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1224 without this. I don't know how relevant this is to other LDAP libraries.
1225
4e167a8c
PH
1226PH/02 Add the verb name to the "unknown ACL verb" error.
1227
4608d683
PH
1228PH/03 Magnus Holmgren's patch for filter_prepend_home.
1229
b8dc3e4a
PH
1230PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1231
5418e93b
PH
1232PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1233 directory not expanded when it should be if an expanded home directory
1234 was set for the address (which is overridden by the transport).
1235
b4a9bda2
PH
1236PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1237 libradius.
1238
45b91596
PH
1239PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1240 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1241 because it is too late at that time, and has no effect.
1242
5547e2c5
PH
1243PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1244 security issue with \' (bugzilla #107). I could not use the
1245 PQescapeStringConn() function, because it needs a PGconn value as one of
1246 its arguments.
1247
dbcef0ea
PH
1248PH/08 When testing addresses using -bt, indicate those final addresses that
1249 are duplicates that would not cause an additional delivery. At least one
1250 person was confused, thinking that -bt output corresponded to deliveries.
1251 (Suppressing duplicates isn't a good idea as you lose the information
1252 about possibly different redirections that led to the duplicates.)
1253
25257489
PH
1254PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1255 systems where poll() doesn't work, in particular OS X.
1256
c816d124
PH
1257PH/10 Added more information to debugging output for retry time not reached.
1258
a9ccd69a
PH
1259PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1260 operations in malware.c.
1261
75fa1910
PH
1262PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1263 signatures.
1264
a7d7aa58
PH
1265PH/13 If write_rejectlog was set false when logging was sent to syslog with
1266 syslog_duplication set false, log lines that would normally be written
1267 both the the main log and to the reject log were not written to syslog at
1268 all.
1269
42119b09
PH
1270PH/14 In the default configuration, change the use of "message" in ACL warn
1271 statements to "add_header".
1272
41609df5
PH
1273PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1274 not followed by a command (e.g. "seen endif").
1275
a5bd321b
PH
1276PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1277 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1278 latter.
1279
e85a7ad5 1280PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1281 so that it is now:
1282
e85a7ad5
PH
1283 ${if or { \
1284 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1285 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1286 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1287 }{no}{yes}}
1288
e85a7ad5
PH
1289 The Auto-Submitted: and various List- headers are standardised, whereas I
1290 don't think Precedence: ever was.
5dff5817 1291
d8fe1c03
PH
1292PH/18 Refactored debugging code in route_finduser() to show more information,
1293 in particular, the error code if getpwnam() issues one.
1294
16282d2b
PH
1295PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1296 This is apparently needed in addition to the PH/07 change above to avoid
1297 any possible encoding problems.
1298
35d40a98
PH
1299PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1300 but not after initializing Perl.
1301
034d99ab
PH
1302PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1303 output them only if debugging. By default they are written stderr,
1304 apparently, which is not desirable.
1305
6ec97b1b
PH
1306PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1307 queries.
1308
e22ca4ac
JJ
1309JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1310 --not options
1311
1312JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1313
33d73e3b
PH
1314PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1315 authenticated or an ident call has been made. Suppress the default
1316 values for $authenticated_id and $authenticated_sender (but permit -oMai
1317 and -oMas) when testing with -bh.
1318
9ecb03f3
PH
1319PH/24 Re-jigged the order of the tests in the default configuration so that the
1320 tests for valid domains and recipients precede the DNS black list and CSA
1321 tests, on the grounds that those ones are more expensive.
1322
084efe8d
PH
1323PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1324 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1325 This bug exists in every version of Exim that I still have, right back to
1326 0.12.
1327
366fc9f0
PH
1328PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1329 However, an attempt to turn on case-sensitivity in a regex key by
1330 including (?-i) didn't work because the subject string was already
1331 lowercased, and the effects were non-intuitive. It turns out that a
1332 one-line patch can be used to allow (?-i) to work as expected.
1333
c59f5781 1334
c887c79e
TF
1335Exim version 4.62
1336-----------------
1337
1338TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1339 other effects) broke the use of negated acl sub-conditions.
1340
1cce3af8
PH
1341PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1342 patch).
1343
afb3eaaf
PH
1344PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1345 "Deny" causes Exim to reject the incoming connection with a 554 error.
1346 Unfortunately, if there is a major crisis, such as a disk failure,
1347 tcp-wrappers gives "deny", whereas what one would like would be some
1348 kind of temporary error. A kludge has been added to help with this.
1349 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1350 554 error is used if errno is still zero or contains ENOENT (which occurs
1351 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1352 451 error is used.
1353
e173618b
PH
1354PH/03 Add -lutil to the default FreeBSD LIBS setting.
1355
dd16e114
PH
1356PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1357 errors. Otherwise a message that provokes a temporary error (when other
1358 messages do not) can cause a whole host to time out.
1359
f7fd3850
PH
1360PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1361 addresses were routed directly to files or pipes from a redirect router.
1362 File deliveries just didn't batch; pipe deliveries might have suffered
1363 odd errors.
1364
d87df92c
PH
1365PH/06 A failure to get a lock for a hints database would erroneously always say
1366 "Failed to get write lock", even when it was really a read lock.
1367
7e9f683d
PH
1368PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1369 of 0600. This has been changed to use the value of the lockfile_mode
1370 option (which defaults to 0600).
1371
bfad5236
PH
1372PH/08 Applied small patch from the Sieve maintainer.
1373
01c490df
PH
1374PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1375 folder from quota calculations, a direct delivery into this folder messed
1376 up the contents of the maildirsize file. This was because the regex was
1377 used only to exclude .Trash (or whatever) when the size of the mailbox
1378 was calculated. There was no check that a delivery was happening into an
1379 excluded directory. This bug has been fixed by ignoring all quota
1380 processing for deliveries into excluded directories.
1381
d6629cdc
PH
1382PH/10 Added the maildirfolder_create_regex option to appendfile.
1383
1cce3af8 1384
214e2000
PH
1385Exim version 4.61
1386-----------------
1387
1388PH/01 The code for finding all the local interface addresses on a FreeBSD
1389 system running IPv6 was broken. This may well have applied to all BSD
1390 systems, as well as to others that have similar system calls. The broken
1391 code found IPv4 interfaces correctly, but gave incorrect values for the
1392 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1393 that it would not match correctly against @[] and not recognize the IPv6
1394 addresses as local.
1395
f9daeae0
PH
1396PH/02 The ipliteral router was not recognizing addresses of the form user@
1397 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1398
7e66e54d
PH
1399PH/03 Added disable_ipv6.
1400
c8ea1597
PH
1401PH/04 Changed $reply_address to use the raw form of the headers instead of the
1402 decoded form, because it is most often used to construct To: headers
1403 lines in autoreplies, and the decoded form may well be syntactically
1404 invalid. However, $reply_address has leading white space removed, and all
1405 newlines turned into spaces so that the autoreply transport does not
1406 grumble.
1407
911f6fde
PH
1408PH/05 If group was specified without a user on a router, and no group or user
1409 was specified on a transport, the group from the router was ignored.
1410
47ca6d6c
PH
1411PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1412 for visible compile-time settings that can be used to change these
1413 numbers, for those that want even more. Backwards compatibility with old
1414 spool files has been maintained. However, going back to a previous Exim
1415 release will lost any variables that are in spool files.
1416
ed0e9820
PH
1417PH/07 Two small changes when running in the test harness: increase delay when
1418 passing a TCP/IP connection to a new process, in case the original
1419 process has to generate a bounce, and remove special handling of
1420 127.0.0.2 (sic), which is no longer necessary.
1421
eff37e47
PH
1422PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1423 be the same on different OS.
1424
1921d2ea
PH
1425PH/09 Moved a debug statement in filter processing to avoid a race problem when
1426 testing.
1427
b3f69ca8
JJ
1428JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1429 whether --show-vars was specified or not
1430
1431JJ/02 exipick: Added support for new ACL variable spool format introduced
1432 in 4.61-PH/06
1433
424a1c63
PH
1434PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1435 syntactically invalid From: or Reply-to: line, and a filter used this to
1436 generate an autoreply, and therefore failed to obtain an address for the
1437 autoreply, Exim could try to deliver to a non-existent relative file
1438 name, causing unrelated and misleading errors. What now happens is that
1439 it logs this as a hard delivery error, but does not attempt to create a
1440 bounce message.
1441
7a100415
PH
1442PH/11 The exinext utility has a -C option for testing purposes, but although
1443 the given file was scanned by exinext itself; it wasn't being passed on
1444 when Exim was called.
1445
19b9dc85
PH
1446PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1447 an end-of-file indication when reading a command response.
1448
309bd837
PH
1449PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1450 compiled. In many other places in Exim, IPv6 addresses are always
1451 recognized, so I have changed this. It also means that IPv4 domain
1452 literals of the form [IPV4:n.n.n.n] are now always recognized.
1453
59e82a2a
PH
1454PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1455 used if the router is not running as root, for example, when verifying at
1456 ACL time, or when using -bh. The debugging output from this situation was
1457 non-existent - all you got was a failure to exec. I have made two
1458 changes:
1459
1460 (a) Failures to set uid/gid, the current directory, or a process leader
1461 in a subprocess such as that created by queryprogram now generate
1462 suitable debugging ouput when -d is set.
1463
1464 (b) The queryprogram router detects when it is not running as root,
1465 outputs suitable debugging information if -d is set, and then runs
1466 the subprocess without attempting to change uid/gid.
1467
9edc04ce
PH
1468PH/15 Minor change to Makefile for building test_host (undocumented testing
1469 feature).
1470
1349e1e5
PH
1471PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1472 additional section of a DNS packet that returns MX or SRV records.
1473 Instead, it always explicitly searches for A/AAAA records. This avoids
1474 major problems that occur when a DNS server includes only records of one
1475 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1476 fixed another bug: if SRV records were looked up and the corresponding
1477 address records were *not* found in the additional section, the port
1478 values from the SRV records were lost.
1479
ea49d0e1
PH
1480PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1481 using the correct key (the original address) when searching the retry
1482 rules in order to find which one to use for generating the retry hint.
1483
064a94c9
PH
1484PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1485 adding the default one. Similarly, if it contains a Reply-To: header, the
1486 errors_reply_to option, if set, is not used.
1487
727071f8
PH
1488PH/19 When calculating a retry time, Exim used to measure the "time since
1489 failure" by looking at the "first failed" field in the retry record. Now
1490 it does not use this if it is later than than the arrival time of the
1491 message. Instead it uses the arrival time. This makes for better
1492 behaviour in cases where some deliveries succeed, thus re-setting the
1493 "first failed" field. An example is a quota failure for a huge message
1494 when small messages continue to be delivered. Without this change, the
1495 "time since failure" will always be short, possible causing more frequent
1496 delivery attempts for the huge message than are intended.
dd16e114 1497 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1498
f78eb7c6
PH
1499PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1500 $1, $2, $3) because the numerical variables can be reset during some
1501 expansion items (e.g. "match"), thereby losing the authentication data.
1502
21c28500
PH
1503PH/21 Make -bV show the size of off_t variables so that the test suite can
1504 decide whether to run tests for quotas > 2G.
1505
1506PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1507 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1508 filecount value is greater than 2G or if a quota value is greater than 2G
1509 on a system where the size of off_t is not greater than 4, a panic error
1510 is given.
1511
1688f43b
PH
1512PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1513 never match. The debug and -bh output now contains an explicit error
1514 message indicating a malformed IPv4 address or mask.
1515
1516PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1517 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1518 PH/23 above applies.
1519
9675b384
PH
1520PH/25 Do not write to syslog when running in the test harness. The only
1521 occasion when this arises is a failure to open the main or panic logs
1522 (for which there is an explicit test).
1523
6a3f1455
PH
1524PH/26 Added the /no_tell option to "control=freeze".
1525
dac79d3e
PH
1526PH/27 If a host name lookup failed very early in a connection, for example, if
1527 the IP address matched host_lookup and the reverse lookup yielded a name
1528 that did not have a forward lookup, an error message of the form "no IP
1529 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1530 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1531
5977a0b3
PH
1532PH/28 An enabling patch from MH: add new function child_open_exim2() which
1533 allows the sender and the authenticated sender to be set when
1534 submitting a message from within Exim. Since child_open_exim() is
1535 documented for local_scan(), the new function should be too.
1536
c91535f3
PH
1537PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1538 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1539 results in an empty string is now treated as unset.
1540
0d46a8c8
PH
1541PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1542
278c6e6c
PH
1543PH/31 Added sender_verify_fail logging option.
1544
2cbb4081
PH
1545PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1546 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1547 tidied the source and removed it altogether.
1548
3eef829e
PH
1549PH/33 When a queue run was abandoned because the load average was too high, a
1550 log line was always written; now it is written only if the queue_run log
1551 selector is set. In addition, the log line for abandonment now contains
1552 information about the queue run such as the pid. This is always present
1553 in "start" and "stop" lines but was omitted from the "abandon" line.
1554
1ab95fa6
PH
1555PH/34 Omit spaces between a header name and the colon in the error message that
1556 is given when verify = headers_syntax fails (if there are lots of them,
1557 the message gets confusing).
1558
230205fc
PH
1559PH/35 Change the default for dns_check_names_pattern to allow slashes within
1560 names, as there are now some PTR records that contain slashes. This check
1561 is only to protect against broken name servers that fall over on strange
1562 characters, so the fact that it applies to all lookups doesn't matter.
1563
75e0e026
PH
1564PH/36 Now that the new test suite is complete, we can remove some of the
1565 special code in Exim that was needed for the old test suite. For example,
1566 sorting DNS records because real resolvers return them in an arbitrary
1567 order. The new test suite's fake resolver always returns records in the
1568 same order.
1569
1570PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1571 bounces) except when queue_only is set, to avoid logging races between
1572 the different processes.
1573
145396a6
PH
1574PH/38 Panic-die if .include specifies a non-absolute path.
1575
3cd34f13
PH
1576PH/39 A tweak to the "H" retry rule from its user.
1577
11121d3d
JJ
1578JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1579 a label. They prevented compilation on older perls.
1580
1581JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1582 a warning to be raised on newish perls.
1583
1584JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1585 on queue. Changes to match documented behaviour of showing count of
1586 messages matching specified criteria.
1587
8def5aaf
PH
1588PH/40 Changed the default ident timeout from 30s to 5s.
1589
929ba01c
PH
1590PH/41 Added support for the use of login_cap features, on those BSD systems
1591 that have them, for controlling the resources used by pipe deliveries.
1592
2632889e
PH
1593PH/42 The content-scanning code uses fopen() to create files in which to put
1594 message data. Previously it was not paying any attention to the mode of
1595 the files. Exim runs with umask(0) because the rest of the code creates
1596 files with open(), and sets the required mode explicitly. Thus, these
1597 files were ending up world-writeable. This was not a big issue, because,
1598 being within the spool directory, they were not world-accessible. I have
1599 created a function called modefopen, which takes an additional mode
1600 argument. It sets umask(777), creates the file, chmods it to the required
1601 mode, then resets the umask. All the relevant calls to fopen() in the
1602 content scanning code have been changed to use this function.
1603
944a9c55
PH
1604PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1605 to 24 hours. This avoids potential overflow problems when processing G
1606 and H retry rules. I suspect nobody ever tinkers with this value.
1607
4a23603b
PH
1608PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1609
4730f942
PH
1610PH/45 When the plaintext authenticator is running as a client, the server's
1611 challenges are checked to ensure they are valid base64 strings. By
1612 default, the authentication attempt is cancelled if an invalid string is
1613 received. Setting client_ignore_invalid_base64 true ignores these errors.
1614 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1615 they are received. Thus, the responses can be made to depend on the
1616 challenges. If an invalid string is ignored, an empty string is placed in
1617 the variable.
1618
30dba1e6
PH
1619PH/46 Messages that are created by the autoreply transport now contains a
1620 References: header, in accordance with RFCs 2822 and 3834.
1621
382afc6b
PH
1622PH/47 Added authenticated_sender_force to the smtp transport.
1623
a86229cf
PH
1624PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1625
50c99ba6
PH
1626PH/49 Installed latest patch from the Sieve maintainer.
1627
d35e429d
PH
1628PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1629 was also set, the appendfile transport was unnecessarily scanning a
1630 directory of message files (e.g. for maildir delivery) to find the count
1631 of files (along with the size), even though it did not need this
1632 information. It now does the scan only if it needs to find either the
1633 size of the count of files.
1634
f90d018c
PH
1635PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1636
75def545
PH
1637PH/52 Two bugs concerned with error handling when the smtp transport is
1638 used in LMTP mode:
1639
1640 (i) Exim was not creating retry information for temporary errors given
1641 for individual recipients after the DATA command when the smtp transport
1642 was used in LMTP mode. This meant that they could be retried too
1643 frequently, and not timed out correctly.
1644
1645 (ii) Exim was setting the flag that allows error details to be returned
1646 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1647 recipients that were returned after the DATA command.
1648
1649PH/53 This is related to PH/52, but is more general: for any failing address,
1650 when detailed error information was permitted to be returned to the
1651 sender, but the error was temporary, then after the final timeout, only
1652 "retry timeout exceeded" was returned. Now it returns the full error as
1653 well as "retry timeout exceeded".
1654
c46782ef
PH
1655PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1656 do this, and (what is worse) MTAs that accept it.
1657
71fafd95
PH
1658PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1659 will now be deprecated.
1660
2c5db4fd
PH
1661PH/56 New os.c-cygwin from the Cygwin maintainer.
1662
9cf6b11a
JJ
1663JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1664 formats (previously only available in exim formats via -bpr, -bpru,
1665 and -bpra. Now also available in native and exiqgrep formats)
1666
1667JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1668 with very large, slow to parse queues
1669
1670JJ/08 exipick: added ! as generic prefix to negate any criteria format
1671
1672JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1673
898d150f
PH
1674PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1675 responses to authentication challenges, though it was showing the
1676 challenges; (ii) I've removed the CR characters from the debug output for
1677 SMTP output lines.
1678
46218253
PH
1679PH/58 Allow for the insertion of a newline as well as a space when a string
1680 is turned into more than one encoded-word during RFC 2047 encoding. The
1681 Sieve code now uses this.
1682
e97957bc
PH
1683PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1684 data_4xx, lost_connection, tls_required.
1685
81e509d7
PH
1686PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1687 message was being sent as an SMTP response.
1688
3d240ff7
PH
1689PH/61 Add -l and -k options to exicyclog.
1690
b37c4101
PH
1691PH/62 When verifying, if an address was redirected to one new address, so that
1692 verification continued, and the new address failed or deferred after
1693 having set something in $address_data, the value of $address_data was not
1694 passed back to the ACL. This was different to the case when no
1695 redirection occurred. The value is now passed back in both cases.
1696
79378e0f
PH
1697PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1698 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1699 use login_cap.h, so on its own it isn't the distinguishing feature. The
1700 new name refers directly to the setclassresources() function.
1701
e49c7bb4
PH
1702PH/65 Added configuration files for NetBSD3.
1703
d114ec46
PH
1704PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1705
f3d7df6c
PH
1706PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1707 is preferred over IPv4.
1708
715ab376
PH
1709PH/68 The bounce_return_message and bounce_return_body options were not being
1710 honoured for bounces generated during the reception of non-SMTP messages.
1711 In particular, this applied to messages rejected by the ACL. This bug has
1712 been fixed. However, if bounce_return_message is true and bounce_return_
1713 body is false, the headers that are returned for a non-SMTP message
1714 include only those that have been read before the error was detected.
1715 (In the case of an ACL rejection, they have all been read.)
1716
6b31b150
PH
1717PH/69 The HTML version of the specification is now built in a directory called
1718 spec_html instead of spec.html, because the latter looks like a path with
1719 a MIME-type, and this confuses some software.
1720
1721PH/70 Catch two compiler warnings in sieve.c.
1722
d515a917
PH
1723PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1724 function verify_get_ident() calls ip_connect() to connect a socket, but
1725 if the "connect()" function timed out, ip_connect() used to close the
1726 socket. However, verify_get_ident() also closes the socket later, and in
1727 between Exim writes to the log, which may get opened at this point. When
1728 the socket was closed in ip_connect(), the log could get the same file
1729 descriptor number as the socket. This naturally causes chaos. The fix is
1730 not to close the socket in ip_connect(); the socket should be closed by
1731 the function that creates it. There was only one place in the code where
1732 this was missing, in the iplookup router, which I don't think anybody now
1733 uses, but I've fixed it anyway.
1734
9b8fadde
PH
1735PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1736 well as to direct DNS lookups. Otherwise the handling of names in host
1737 lists is inconsistent and therefore confusing.
1738
214e2000 1739
5de37277
PH
1740Exim version 4.60
1741-----------------
1742
cc38ddbf
PH
1743PH/01 Two changes to the default runtime configuration:
1744
1745 (1) Move the checks for relay_from_hosts and authenticated clients from
1746 after to before the (commented out) DNS black list checks.
1747
1748 (2) Add control=submission to the relay_from_hosts and authenticated
1749 clients checks, on the grounds that messages accepted by these
1750 statements are most likely to be submissions.
5de37277 1751
72fdd6ae
PH
1752PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1753
1754 (1) Generate an error if the third argument for the ${prvs expansion is
1755 not a single digit.
1756
1757 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1758 string.
1759
1760 (3) Reset the variables that are obtained from the first argument of
1761 ${prvscheck and used in the second argument before leaving the code,
1762 because their memory is reclaimed, so using them afterwards may do
1763 silly things.
1764
1765 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1766 one (it's much easier than Tom thought :-).
1767
1768 (5) Because of (4), we can now allow for the use of $prvscheck_result
1769 inside the third argument.
cb9328de 1770
cb741023
PH
1771PH/03 For some reason, the default setting of PATH when running a command from
1772 a pipe transport was just "/usr/bin". I have changed it to
1773 "/bin:/usr/bin".
1774
f174f16e
PH
1775PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1776 anything to be listed in the output from -bV.
b2f5a032 1777
c25242d7
PH
1778PH/05 When a filter generated an autoreply, the entire To: header line was
1779 quoted in the delivery log line, like this:
1780
1781 => >A.N.Other <ano@some.domain> <original@ddress> ...
1782
1783 This has been changed so that it extracts the operative address. There
1784 may be more than one such address. If so, they are comma-separated, like
1785 this:
1786
1787 => >ano@some.domain,ona@other.domain <original@ddress> ...
1788
82c19f95
PH
1789PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1790 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1791 not being looked up in the rDNS to get a host name, Exim was showing the
1792 IP address twice in Received: lines, even though the IP addresses were
1793 identical. For example:
1794
1795 Received: from [1.2.3.4] (helo=[1.2.3.4])
1796
1797 However, if the real host name was known, it was omitting the HELO data
1798 if it matched the actual IP address. This has been tidied up so that it
1799 doesn't show the same IP address twice.
1800
d7ffbc12
PH
1801PH/07 When both +timestamp and +memory debugging was on, the value given by
1802 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1803 called by the debug printing, thereby overwriting the timestamp buffer.
1804 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1805
9f526266
PH
1806PH/08 When the original message was included in an autoreply transport, it
1807 always said "this is a copy of the message, including all the headers",
1808 even if body_only or headers_only was set. It now gives an appropriate
1809 message.
1810
87fcc8b9
PH
1811PH/09 Applied a patch from the Sieve maintainer which:
1812
1813 o fixes some comments
1814 o adds the (disabled) notify extension core
1815 o adds some debug output for the result of if/elsif tests
1816 o points to the current vacation draft in the documentation
1817 and documents the missing references header update
1818
1819 and most important:
1820
1821 o fixes a bug in processing the envelope test (when testing
1822 multiple envelope elements, the last element determinted the
1823 result)
1824
456682f5
PH
1825PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1826 Electronic Mail") by including:
1827
1828 Auto-submitted: auto-generated
1829
1830 in the messages that it generates (bounce messages and others, such as
1831 warnings). In the case of bounce messages for non-SMTP mesages, there was
1832 also a typo: it was using "Auto_submitted" (underscore instead of
1833 hyphen). Since every message generated by Exim is necessarily in response
1834 to another message, thes have all been changed to:
1835
1836 Auto-Submitted: auto-replied
1837
1838 in accordance with these statements in the RFC:
1839
1840 The auto-replied keyword:
1841
1842 - SHOULD be used on messages sent in direct response to another
1843 message by an automatic process,
1844
1845 - MUST NOT be used on manually-generated messages,
1846
1847 - MAY be used on Delivery Status Notifications (DSNs) and Message
1848 Disposition Notifications (MDNs),
1849
1850 - MUST NOT be used on messages generated by automatic or periodic
1851 processes, except for messages which are automatic responses to
1852 other messages.
1853
3e46c1aa
PH
1854PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1855 to the default Received: header definition.
456682f5 1856
49826d12
PH
1857PH/12 Added log selector acl_warn_skipped (default on).
1858
eba0c039
PH
1859PH/13 After a successful wildlsearch lookup, discard the values of numeric
1860 variables because (a) they are in the wrong storage pool and (b) even if
1861 they were copied, it wouldn't work properly because of the caching.
1862
a0d6ba8a
PH
1863PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1864 checking when decoding. Apparently there are clients that generate
1865 overlong encoded strings. Why am I not surprised?
1866
f0917727
PH
1867PH/15 If the first argument of "${if match_address" was not empty, but did not
1868 contain an "@" character, Exim crashed. Now it writes a panic log message
1869 and treats the condition as false.
1870
096fee00
PH
1871PH/16 In autoreply, treat an empty string for "once" the same as unset.
1872
024bd3c2
PH
1873PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1874 extension "envelope-auth". The code is finished and in agreement with
1875 other implementations, but there is no documentation so far and in fact,
1876 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1877 not changing the active code.
1878
1879 Print executed "if" and "elsif" statements when debugging is used. This
1880 helps a great deal to understand what a filter does.
1881
1882 Document more things not specified clearly in RFC3028. I had all this
1883 sorted out, when out of a sudden new issues came to my mind. Oops."
1884
df199fec
PH
1885PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1886 (Bugzilla #53).
1887
d27f1df3
PH
1888PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1889 canonical form (as documented). However, after a host name lookup from
1890 the IP address, check_host() was doing a simple string comparison with
1891 addresses acquired from the DNS when checking that the found name did
1892 have the original IP as one of its addresses. Since any found IPv6
1893 addresses are likely to be in abbreviated form, the comparison could
1894 fail. Luckily, there already exists a function for doing the comparison
1895 by converting both addresses to binary, so now that is used instead of
1896 the text comparison.
1897
96776534
PH
1898PH/20 There was another similar case to PH/19, when a complete host name was
1899 given in a host list; looking up its IP address could give an abbreviated
1900 form, whereas the current host's name might or might not be abbreviated.
1901 The same fix has been applied.
1902
5de37277 1903
9a799bc0
PH
1904Exim version 4.54
1905-----------------
1906
1907PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1908 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1909 It now does.
1910
99a4b039
PH
1911PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1912 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1913
1914PH/03 Typo: missing ".o" in src/pcre/Makefile.
1915
4b233853
PH
1916PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1917 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1918 Also, for "Auto-Submitted", treat anything other than "no" as
1919 non-personal, in accordance with RFC 3834. (Previously it treated
1920 anything starting "auto-" as non-personal.)
1921
8857ccfd
PH
1922TF/01 The control=submission/name=... option had a problem with syntax
1923 errors if the name included a slash character. The /name= option
1924 now slurps the rest of the string, so it can include any characters
1925 but it must come last in the list of options (after /sender_retain
1926 or /domain=).
1927
433a2980
PH
1928PH/05 Some modifications to the interface to the fake nameserver for the new
1929 testing suite.
1930
3e46c1aa 1931
9a799bc0 1932
e3a311ba
TK
1933Exim version 4.53
1934-----------------
1935
1936TK/01 Added the "success_on_redirect" address verification option. See
1937 NewStuff for rationale and an example.
1938
13b685f9
PH
1939PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1940
395ff96d
PH
1941PH/02 Patch to exigrep to allow it to work on syslog lines.
1942
5b68f6e4
PH
1943PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1944 fread() to skip over the body file's header line, because in Cygwin the
1945 header line is locked and is inaccessible.
1946
1ab52c69
PH
1947PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1948 co-exist for some time) to make it clear that it is the Exim ID that is
1949 referenced, not the Message-ID: header line.
1950
b07e6aa3
PH
1951PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1952 string_format() function, because snprintf() does not exist on all
1953 operating systems.
1954
254e032f
PH
1955PH/06 The use of forbid_filter_existstest now also locks out the use of the
1956 ${stat: expansion item.
1957
3af76a81
PH
1958PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1959 protocol synchronization error", to keep the pedants happy.
1960
2548ba04
PH
1961PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1962 well as for IRIX systems, when gcc is being used. See the host.c source
1963 file for comments.
1964
b6c6011d
PH
1965PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1966
cf39cf57
PH
1967PH/10 Named domain lists were not working if used in a queue_smtp_domains
1968 setting.
1969
f1513293
PH
1970PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1971 transport and to the smtp transport in LMTP mode.
1972
727549a4
PH
1973TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1974
af46795e
PH
1975PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1976 run a filter in a subprocess. This could lead to confusion in subsequent
1977 lookups in the parent process. There should also be a search_tidyup() at
1978 the end of the subprocess.
1979
d7b47fd0
PH
1980PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1981 only if the host matched helo_try_verify_hosts, which caused the
1982 verification to occur when the EHLO/HELO command was issued. The ACL just
1983 tested the remembered result. Now, if a previous verification attempt has
1984 not happened, "verify = helo" does it there and then.
1985
ee744174
JJ
1986JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1987
b582ab87
PH
1988TK/03 Fix log output including CR from clamd.
1989
41a13e0a
PH
1990PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1991 exist provoked a memory error which could cause a segfault.
1992
f625cc5a
PH
1993PH/15 Installed PCRE 6.2
1994
1995PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1996
21f7af35
PH
1997PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1998 of the problem. Specifically, suggested +O2 rather than +O1 for the
1999 HP-UX compiler.
2000
31480e42
PH
2001PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2002
2d280592
PH
2003PH/20 If a delivery was routed to a non-standard port by means of an SRV
2004 record, the port was not correctly logged when the outgoing_port log
2005 selector was set (it logged the transort's default port).
2006
7cd1141b
PH
2007PH/21 Added support for host-specific ports to manualroute, queryprogram,
2008 fallback_hosts, and "hosts" in the smtp transport.
2009
2010PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2011 host errors such as "Connection refused".
2012
750af86e
PH
2013PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2014 authentication with radiusclient 0.4.9:
2015
2016 - Error returned from rc_read_config was caught wrongly
2017 - Username/password not passed on to radius server due to wrong length.
2018
2019 The presumption is that some radiusclient API changes for 4.51/PH/17
2020 were not taken care of correctly. The code is still untested by me (my
2021 Linux distribution still has 0.3.2 of radiusclient), but it was
2022 contributed by a Radius user.
2023
2024PH/24 When doing a callout, the value of $domain wasn't set correctly when
2025 expanding the "port" option of the smtp transport.
2026
4304270b
TK
2027TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2028 while reading a MIME header. Thanks to Tom Hughes for a patch.
2029
750af86e
PH
2030PH/24 Include config.h inside local_scan.h so that configuration settings are
2031 available.
2032
64ffc24f
PH
2033PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2034 that in an ACL for RCPT (for example), you can examine exactly what was
2035 received.
2036
5dd9625b
PH
2037PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2038 commands, but it was not correctly comparing the address with the actual
2039 client host address. Thus, it would show the EHLO address in Received:
2040 header lines when this was not necessary.
2041
5591031b
PH
2042PH/27 Added the % operator to ${eval:}.
2043
ba18e66a
PH
2044PH/28 Exim tries to create and chdir to its spool directory when it starts;
2045 it should be ignoring failures (because with -C, for example, it has lost
2046 privilege). It wasn't ignoring creation failures other than "already
2047 exists".
2048
9cec981f
PH
2049PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2050 -bV or -d is used.
2051
aa2b5c79
PH
2052PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2053 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2054 too many continuations, the temporary file was not being removed, and the
2055 return code was incorrect.
aa2b5c79 2056
48a53b7f
PH
2057PH/31 Missing "BOOL" in function definition in filtertest.c.
2058
1c59d63b
PH
2059PH/32 Applied Sieve patches from the maintainer.
2060
671012da
TK
2061TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2062
1509d3a8
PH
2063PH/33 Added "verify = not_blind".
2064
2065PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2066 Local/Makefile (with some defaults set). These are used in built scripts
2067 such as exicyclog, but they have never been used in the exim_install
2068 script (though there are many overriding facilities there). I have
2069 arranged that the exim_install script now takes note of these two
2070 settings.
2071
2072PH/35 Installed configuration files for Dragonfly.
2073
2fe1a124
PH
2074PH/36 When a locally submitted message by a trusted user did not contain a
2075 From: header, and the sender address was obtained from -f or from an SMTP
2076 MAIL command, and the trusted user did not use -F to supply a sender
2077 name, $originator_name was incorrectly used when constructing a From:
2078 header. Furthermore, $originator_name was used for submission mode
2079 messages from external hosts without From: headers in a similar way,
2080 which is clearly wrong.
2081
8800895a
PH
2082PH/37 Added control=suppress_local_fixups.
2083
ccfdb010
PH
2084PH/38 When log_selector = +received_sender was set, and the addition of the
2085 sender made the log line's construction buffer exactly full, or one byte
2086 less than full, an overflow happened when the terminating "\n" was
2087 subsequently added.
2088
1130bfb0
PH
2089PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2090 when the result of a list match is failure because a DNS lookup failed.
2091
ebcb507f
PH
2092PH/40 RM_COMMAND is now used in the building process.
2093
c35e155c
PH
2094PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2095 the "build-* directories that it finds.
2096
95d1f782
PH
2097PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2098 address in a domain literal was a prefix of an interface address.
2099
fd6de02e
PH
2100PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2101 when verifying a sender address, unless rewrite_headers is false.
2102
58de37c5
PH
2103PH/44 Wrote a long comment about why errors_to addresses are verified as
2104 recipients, not senders.
2105
261cf466
TF
2106TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2107 the ratelimit ACL was added.
2108
3ee512ff
PH
2109PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2110
e08c430f
PH
2111PH/46 Added extra information about PostgreSQL errors to the error string.
2112
bef5a11f
PH
2113PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2114 avoiding the need to install special zones in a real server. This is
2115 backwards compatible; if it can't find the fake resolver, it drops back.
2116 Thus, both old and new test suites can be run.
2117
7546de58
TF
2118TF/02 Added util/ratelimit.pl
2119
e5d5a95f
TF
2120TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2121 clock is set back in time.
2122
2e88a017
TF
2123TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2124 Candler <B.Candler@pobox.com>.
2125
a5f65aa4
TF
2126TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2127 OK for addresses that are the result of redirections.
2128
e7726cbf
PH
2129PH/48 A number of further additions for the benefit of the new test suite,
2130 including a fake gethostbyname() that interfaces to the fake DNS resolver
2131 (see PH/47 above).
2132
a7fdad5b
TF
2133TF/06 The fix for widen_domains has also been applied to qualify_single and
2134 search_parents which are the other dnslookup options that can cause
2135 header rewrites.
2136
6af56900
PH
2137PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2138 type ("H").
2139
0925ede6
PH
2140PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2141
66afa403
TF
2142TF/07 Exim produced the error message "an SRV record indicated no SMTP
2143 service" if it encountered an MX record with an empty target hostname.
2144 The message is now "an MX or SRV record indicated no SMTP service".
2145
0154e85a
TF
2146TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2147 if the DNS of the sending site is misconfigured. This is quite a
2148 common situation. This change restores the behaviour of treating a
2149 helo verification defer as a failure.
2150
16f12c76
PH
2151PH/51 If self=fail was set on a router, the bounce message did not include the
2152 actual error message.
2153
bbe902f0 2154
e5a9dba6
PH
2155Exim version 4.52
2156-----------------
2157
2158TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2159
22c3b60b
PH
2160PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2161 command itself ended in error, the underlying message about the transport
2162 filter timeout was being overwritten with the pipe command error. Now the
2163 underlying error message should be appended to the second error message.
2164
06a9b4b5
PH
2165TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2166
c1ac6996
PH
2167PH/02 Reduce the amount of output that "make" produces by default. Full output
2168 can still be requested.
2169
9c7a242c
PH
2170PH/03 The warning log line about a condition test deferring for a "warn" verb
2171 was being output only once per connection, rather than after each
2172 occurrence (because it was using the same function as for successful
2173 "warn" verbs). This seems wrong, so I have changed it.
2174
87ba3f5f
PH
2175TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2176 it should not have, which might have caused a crash in the right
2177 circumstances, but probably never did.
2178
2179PH/04 Installed a modified version of Tony Finch's patch to make submission
2180 mode fix the return path as well as the Sender: header line, and to
2181 add a /name= option so that you can make the user's friendly name appear
2182 in the header line.
2183
29aba418
TF
2184TF/03 Added the control = fakedefer ACL modifier.
2185
fe0dab11
TF
2186TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2187 Mark Lowes for thorough testing.
870f6ba8 2188
11d337a4
TK
2189TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2190
2191TK/03 Merged latest SRS patch from Miles Wilton.
2192
415c8f3b
PH
2193PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2194 with the definition in sysexits.h (which is #included earlier).
2195 Fortunately, Exim does not actually use EX_OK. The code used to try to
2196 preserve the sysexits.h value, by assumimg that macro definitions were
2197 scanned for macro replacements. I have been disabused of this notion,
2198 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2199
958541e9
PH
2200PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2201 in the smtp transport. When a block could not be written in a single
2202 write() function, the timeout was being re-applied to each part-write.
2203 This seems wrong - if the receiver was accepting one byte at a time it
2204 would take for ever. The timeout is now adjusted when this happens. It
2205 doesn't have to be particularly precise.
2206
c206415f
TK
2207TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2208 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2209
2a4be8f9
PH
2210PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2211 without a domain if the check to <postmaster@domain> fails.
2212
1cba11c5
SC
2213SC/01 Eximstats: added -xls and the ability to specify output files
2214 (patch written by Frank Heydlauf).
2215
2216SC/02 Eximstats: use FileHandles for outputing results.
2217
2218SC/03 Eximstats: allow any combination of xls, txt, and html output.
2219
2220SC/04 Eximstats: fixed display of large numbers with -nvr option
2221
2222SC/05 Eximstats: fixed merging of reports with empty tables.
2223
2224SC/06 Eximstats: added the -include_original_destination flag
2225
2226SC/07 Eximstats: removed tabs and trailing whitespace.
2227
1005d00e
TK
2228TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2229
2230TK/06 MBOX spool code: Add real "From " MBOX separator line
2231 so the .eml file is really in mbox format (even though
2232 most programs do not really care). Patch from Alex Miller.
2233
2234TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2235 The latter is generated from $received_to and is only set if the
2236 message has one envelope recipient. SA can use these headers,
2237 obviously out-of-the-box. Patch from Alex Miller.
2238
9b4768fa
PH
2239PH/08 The ${def test on a variable was returning false if the variable's
2240 value was "0", contrary to what the specification has always said!
2241 The result should be true unless the variable is empty.
2242
2243PH/09 The syntax error of a character other than { following "${if
2244 def:variable_name" (after optional whitespace) was not being diagnosed.
2245 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2246 accidental colon was present, for example, could give incorrect results.
2247
0d7eb84a
PH
2248PH/10 Tidied the code in a number of places where the st_size field of a stat()
2249 result is used (not including appendfile, where other changes are about
2250 to be made).
2251
2252PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2253 This involved changing a lot of size variables from int to off_t. It
2254 should work with maildirs and everything.
2255
40727bee
TK
2256TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2257 spamd dying while we are connected to it.
2258
554d2369
TF
2259TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2260 <jgh@wizmail.org>
2261
1f922db1
PH
2262PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2263 function for BDB 4.3.
2264
ef213c3b
PH
2265PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2266
8ac170f3
PH
2267PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2268 the sources for PCRE have been re-arranged and more files are now
2269 involved.
2270
b1c749bb
PH
2271PH/15 The code I had for printing potentially long long variables in PH/11
2272 above was not the best (it lost precision). The length of off_t variables
2273 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2274 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2275 to be "long long int" or "long int". This is needed for the internal
2276 formatting function string_vformat().
b1c749bb 2277
4aac9b49
PH
2278PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2279 the configuration file to be ":syslog", then the script "guesses" where
2280 the logs files are, rather than using the compiled in default. In our
2281 case the guess is not the same as the compiled default, so the script
2282 suddenly stopped working when I started to use syslog. The patch checks
2283 to see if log_file_path is "". If so, it attempts to read it from exim
2284 with no configuration file to get the compiled in version, before it
2285 falls back to the previous guessing code."
2286
294520c8
TK
2287TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2288 implementing BATV in an Exim configuration. See NewStuff for the gory
2289 details.
2290
5bd022fe
PH
2291PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2292 Makefile that are specific to HP-UX.
2293
90e9ce59
PH
2294PH/18 If the "use_postmaster" option was set for a recipient callout together
2295 with the "random" option, the postmaster address was used as the MAIL
2296 FROM address for the random test, but not for the subsequent recipient
2297 test. It is now used for both.
2298
5ea81592
PH
2299PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2300 patch removes a few documentation additions to RFC 3028, because the
2301 latest draft now contains them. It adds the new en;ascii-case comparator
2302 and a new error check for 8bit text in MIME parts. Comparator and
2303 require names are now matched exactly. I enabled the subaddress
2304 extension, but it is not well tested yet (read: it works for me)."
2305
c6c2dc1d
PH
2306PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2307 rework some of the code of TK/09 above to avoid the hardwired use of
2308 "%lld" and "long long". Replaced the call to snprintf() with a call to
2309 string_vformat().
2310
fffffe4c
PH
2311PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2312 records point to non-existent hosts", "retry timeout exceeded", and
2313 "retry time not reached for any host after a long failure period".
ca02eafb 2314
9a26b6b2
PH
2315PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2316 experimental DomainKeys support:
2317
2318 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2319 (2) On an error such as an illegally used "control", the wrong name for
2320 the control was given.
2321
2322 These problems did NOT occur unless DomainKeys support was compiled.
2323
4aee0225
PH
2324PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2325
32d668a5
PH
2326PH/24 Added ${if match_ip condition.
2327
8187c3f3
PH
2328PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2329 databases so that it will be absolutely obvious if a crash occurs in the
2330 DB library. This is a regular occurrence (often caused by mis-matched
2331 db.h files).
2332
ff790e47 2333PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2334 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2335 picked up on a user's system that detects such things. There doesn't seem
2336 to be a gcc warning option for this - only an attribute that has to be
2337 put on the function's prototype. It seems that in Fedora Core 4 they have
2338 set this on a number of new functions. No doubt there will be more in due
2339 course.
ff790e47 2340
5417f6d1
PH
2341PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2342 specify a transport. However, if an address that was verified by such a
2343 router was the subject of a callout, Exim crashed because it tried to
2344 read the rcpt_include_affixes from the non-existent transport. Now it
2345 just assumes that the setting of that option is false. This bug was
2346 introduced by 4.51/PH/31.
2347
59cf8544
PH
2348PH/28 Changed -d+all to exclude +memory, because that information is very
2349 rarely of interest, but it makes the output a lot bigger. People tend to
2350 do -d+all out of habit.
2351
e7ad8a65
PH
2352PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2353 code in os-type was giving problems when libc.so lives in lib64, like on
2354 x86_64 Fedora Core.
2355
ade42478
PH
2356PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2357 aren't the modern standard, and it seems that some systems' include files
2358 don't always have them. Exim was already checking for some of the newer
2359 ones like T_AAAA, and defining it itself. I've added checks for all the
2360 record types that Exim uses.
2361
182ad5cf
PH
2362PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2363 not automatically generating a new one, as it is supposed to. This
2364 prevented TLS from working. If the file did exist, but contained invalid
2365 data, a new version was generated, as expected. It was only the case of a
2366 non-existent file that was broken.
2367
b0d9fc80
TK
2368TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2369 with a change in libdomainkeys > 0.64.
2370
2371TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2372 from DNS. If the selector record carries the flag, it now has
2373 precedence over the domain-wide flag.
2374
2375TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2376
47c7a64a
PH
2377PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2378 the use of a port name that isn't defined in /etc/services) occurred, the
2379 message was deferred as in a normal delivery, and thus remained on the
2380 spool, instead of being failed because of the mua_wrapper setting. This
2381 is now fixed, and I tidied up some of the mua_wrapper messages at the
2382 same time.
2383
a388bce4
SC
2384SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2385 the messages in a hash of arrays rather than using individual hashes.
2386 This is a bit cleaner and results in dramatic memory savings, albeit
2387 at a slight CPU cost.
2388
2389SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2390 as requested by Marc Sherman.
2391
2392SC/10 Eximstats: added histograms for user specified patterns as requested
2393 by Marc Sherman.
2394
0793e4ed
SC
2395SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2396
c58b88df
PH
2397PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2398 fopen() in the content-scanning modules that did not already have it.
2399
e7ad8a65 2400
7982096b
PH
2401Exim version 4.51
2402-----------------
2403
1a46a8c5
PH
2404TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2405 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2406
2f079f46 2407TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2408
2409TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2410
2411PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2412 to test Sieve filters that use "vacation".
2413
2414PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2415 that changes the way the GnuTLS parameters are stored in the cache file.
2416 The new format can be generated externally. For backward compatibility,
2417 if the data in the cache doesn't make sense, Exim assumes it has read an
2418 old-format file, and it generates new data and writes a new file. This
2419 means that you can't go back to an older release without removing the
2420 file.
2421
2422PH/03 A redirect router that has both "unseen" and "one_time" set does not
2423 work if there are any delivery delays because "one_time" forces the
2424 parent to be marked "delivered", so its unseen clone is never tried
2425 again. For this reason, Exim now forbids the simultaneous setting of
2426 these two options.
2427
2428PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2429 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2430 entry if you want to know the details. The fix, however, neglected to
2431 consider the case when local delivery batching is involved. The test for
2432 "previously delivered" was not happening when checking to see if an
2433 address could be batched with a previous (undelivered) one; under
2434 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2435 address.
1a46a8c5
PH
2436
2437PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2438 in its include files, and this causes problems building Exim.
2439
2440PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2441 header_syntax) but Exim was just ignoring anything given after a slash.
2442 In particular, this caused confusion with an attempt to use "verify =
2443 reverse_host_lookup/defer_ok". An error is now given when options are
2444 supplied for verify items that do not have them. (Maybe reverse_host_
2445 lookup should have a defer_ok option, but that's a different point.)
2446
2447PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2448 defined by RFC 821) to 2048, because there were problems with some AUTH
2449 commands, and RFC 1869 says the size should be increased for extended
2450 SMTP commands that take arguments.
2451
2452PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2453 Finch).
2454
2455PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2456 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2457
49c2d5ea
PH
2458PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2459 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2460 whatever). Otherwise the password may appear in the log. Following change
2461 PH/42 below, there is no longer a chance of it appearing in a bounce
2462 message.
49c2d5ea 2463
bf759a8b
PH
2464PH/11 Installed exipick version 20050225.0 from John Jetmore.
2465
83364d30
PH
2466PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2467 of its addresses was ever tried. (Bugzilla bug #2.)
2468
7999bbd7
PH
2469PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2470 the result incorrectly in the debug output. (It correctly added a newline
2471 to what was transported.)
2472
7dbf77c9
PH
2473TF/01 Added $received_time.
2474
74e0617f
PH
2475PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2476 commented out examples of how to interface to a virus scanner and to
2477 SpamAssassin. Also added commented examples of av_scanner and
2478 spamd_address settings.
2479
2f079f46
PH
2480PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2481 and controls are allowed in which ACLs. There were a couple of minor
2482 errors. Some of the entries in the conditions table (which is a table of
2483 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2484 negation of where the condition IS allowed.
2485
8c841523
PH
2486PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2487
7766a4f0
PH
2488PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2489 header file does not have a version number, so I've had to invent a new
2490 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2491 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2492 radiusclient), but it was contributed by a Radius user.
2493
8b417f2c
PH
2494PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2495 files or directories, for OpenSSL.
2496
901f42cb
PH
2497PH/19 When an Exim process that is running as root has to create an Exim log
2498 file, it does so in a subprocess that runs as exim:exim so as to get the
2499 ownership right at creation (otherwise, other Exim processes might see
2500 the file with the wrong ownership). There was no test for failure of this
2501 fork() call, which would lead to the process getting stuck as it waited
2502 for a non-existent subprocess. Forks do occasionally fail when resources
2503 run out. I reviewed all the other calls to fork(); they all seem to check
2504 for failure.
2505
f9b9210e
PH
2506PH/20 When checking for unexpected SMTP input at connect time (before writing
2507 the banner), Exim was not dealing correctly with a non-positive return
2508 from the read() function. If the client had disconnected by this time,
2509 the result was a log entry for a synchronization error with an empty
2510 string after "input=" when read() returned zero. If read() returned -1
2511 (an event I could not check), uninitialized data bytes were printed.
2512 There were reports of junk text (parts of files, etc) appearing after
2513 "input=".
2514
54cdb463
PH
2515PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2516
cf00dad6
PH
2517PH/22 Added support for macro redefinition, and (re)definition in between
2518 driver and ACL definitions.
2519
acb1b346
PH
2520PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2521 forgetting to use the resulting value; it was using the unexpanded value.
2522
c5ddb310
PH
2523PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2524 hadn't been configured. The fix is from Juergen Kreileder, who
2525 understands it better than I do:
2526
2527 "Here's what I see happening with three configured cyrus_sasl
2528 authenticators configured (plain, login, cram-md5):
2529
2530 On startup auth_cyrus_sasl_init() gets called for each of these.
2531 This means three calls to sasl_listmech() without a specified mech_list.
2532 => SASL tests which mechs of all available mechs actually work
2533 => three warnings about OTP not working
2534 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2535
2536 With the patch, sasl_listmech() also gets called three times. But now
2537 SASL's mech_list option is set to the server_mech specified in the the
2538 authenticator. Or in other words, the answer from sasl_listmech()
2539 gets limited to just the mech you're testing for (which is different
2540 for each call.)
2541 => the return list contains just 'plain' or 'login', 'cram-md5' or
2542 nothing depending on the value of ob->server_mech.
2543
2544 I've just tested the patch: Authentication still works fine,
2545 unavailable mechs specified in the exim configuration are still
2546 caught, and the auth.log warnings about OTP are gone."
2547
31619da6
PH
2548PH/25 When debugging is enabled, the contents of the command line are added
2549 to the debugging output, even when log_selector=+arguments is not
2550 specified.
2551
bebaf0fc
PH
2552PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2553 answer is "GNU", and only if the return is "GNU/something" is the answer
2554 "Linux".
2555
475fe28a
PH
2556PH/27 $acl_verify_message is now set immediately after the failure of a
2557 verification in an ACL, and so is available in subsequent modifiers. In
2558 particular, the message can be preserved by coding like this:
2559
2560 warn !verify = sender
2561 set acl_m0 = $acl_verify_message
2562
2563 Previously, $acl_verify_message was set only while expanding "message"
2564 and "log_message" when a very denied access.
2565
7e8bec7a
PH
2566PH/28 Modified OS/os.c-Linux with
2567
2568 -#ifndef OS_LOAD_AVERAGE
2569 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2570
2571 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2572 nomenclature these days.)
2573
e4a89c47
PH
2574PH/29 Installed patch from the Sieve maintainer that adds the options
2575 sieve_useraddress and sieve_subaddress to the redirect router.
2576
5ca2a9a1
PH
2577PH/30 In these circumstances:
2578 . Two addresses routed to the same list of hosts;
2579 . First host does not offer TLS;
2580 . First host accepts first address;
2581 . First host gives temporary error to second address;
2582 . Second host offers TLS and a TLS session is established;
2583 . Second host accepts second address.
2584 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2585 and peerdn, if requested) that were in fact used only for the second
2586 address.
7e8bec7a 2587
c688b954
PH
2588PH/31 When doing a callout as part of verifying an address, Exim was not paying
2589 attention to any local part prefix or suffix that was matched by the
2590 router that accepted the address. It now behaves in the same way as it
2591 does for delivery: the affixes are removed from the local part unless
2592 rcpt_include_affixes is set on the transport.
2593
fed77020
PH
2594PH/32 Add the sender address, as F=<...>, to the log line when logging a
2595 timeout during the DATA phase of an incoming message.
2596
7fe1560f
PH
2597PH/33 Sieve envelope tests were broken for match types other than :is. I have
2598 applied a patch sanctioned by the Sieve maintainer.
c688b954 2599
ebb6e6d5
PH
2600PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2601 the uid or gid is negative. A case of a negative gid caused this to be
2602 noticed. The fix allows for either to be negative.
2603
9c4e8f60
PH
2604PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2605 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2606 overlooked.
2607
2608PH/36 The change PH/12 above was broken. Fixed it.
2609
d7174846
PH
2610PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2611 the grounds that routing the same address twice would always produce the
2612 same answer. This might have been true once, but it is certainly no
2613 longer true now. Routing a child address may depend on the previous
2614 routing that produced that child. Some complicated redirection strategies
2615 went wrong when messages had multiple recipients, and made Exim's
2616 behaviour dependent on the order in which the addresses were given.
2617
2618 I have moved the duplicate checking until after the routing is complete.
2619 Exim scans the addresses that are assigned to local and remote
2620 transports, and removes any duplicates. This means that more work will be
2621 done, as duplicates will always all be routed, but duplicates are
2622 presumably rare, so I don't expect this is of any significance.
2623
2624 For deliveries to pipes, files, and autoreplies, the duplicate checking
2625 still happens during the routing process, since they are not going to be
2626 routed further.
2627
cfe75fc3
PH
2628PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2629 It corrects a timeout issue with spamd. This is Ian's comment: "The
2630 background is that sometimes spamd either never reads data from a
2631 connection it has accepted, or it never writes response data. The exiscan
2632 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2633 blindly assumes that writes won't block so it may never time out."
2634
be22d70e
PH
2635PH/39 Allow G after quota size as well as K and M.
2636
0612b098
PH
2637PH/40 The value set for $authenticated_id in an authenticator may not contain
2638 binary zeroes or newlines because the value is written to log lines and
2639 to spool files. There was no check on this. Now the value is run through
2640 the string_printing() function so that such characters are converted to
2641 printable escape sequences.
2642
2e0c1448
PH
2643PH/41 $message_linecount is a new variable that contains the total number of
2644 lines in the message. Compare $body_linecount, which is the count for the
2645 body only.
2646
447d236c
PH
2647PH/42 Exim no longer gives details of delivery errors for specific addresses in
2648 bounce and delay warning messages, except in certain special cases, which
2649 are as follows:
2650
2651 (a) An SMTP error message from a remote host;
2652 (b) A message specified in a :fail: redirection;
2653 (c) A message specified in a "fail" command in a system filter;
2654 (d) A message specified in a FAIL return from the queryprogram router;
2655 (e) A message specified by the cannot_route_message router option.
2656
2657 In these cases only, Exim does include the error details in bounce and
2658 warning messages. There are also a few cases where bland messages such
2659 as "unrouteable address" or "local delivery error" are given.
2660
d20976dc
PH
2661PH/43 $value is now also set for the "else" part of a ${run expansion.
2662
f656d135
PH
2663PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2664 being worked on, but at least Exim now implements the latest version to
2665 play with."
2666
2e2a30b4
PH
2667PH/45 In a pipe transport, although a timeout while waiting for the pipe
2668 process to complete was treated as a delivery failure, a timeout while
2669 writing the message to the pipe was logged, but erroneously treated as a
2670 successful delivery. Such timeouts include transport filter timeouts. For
2671 consistency with the overall process timeout, these timeouts are now
2672 treated as errors, giving rise to delivery failures by default. However,
2673 there is now a new Boolean option for the pipe transport called
2674 timeout_defer, which, if set TRUE, converts the failures into defers for
2675 both kinds of timeout. A transport filter timeout is now identified in
2676 the log output.
2677
9176e9f0
PH
2678PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2679 systems where "make" and "gmake" are different, calling "gmake" at top
2680 level broke things. I've arranged for the value of $(MAKE) to be passed
2681 from the Makefile to this script so that it can call the same version of
2682 "make".
2683
7982096b 2684
bbe902f0
PH
2685A note about Exim versions 4.44 and 4.50
2686----------------------------------------
2687
2688Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2689changes of various kinds. As a consequence, a big documentation update was
2690needed. This delayed the release for rather longer than seemed good, especially
2691in the light of a couple of (minor) security issues. Therefore, the changes
2692that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2693release. So 4.44 and 4.50 are in effect two different branches that both start
2694from 4.43.
2695
2696I have left the 4.50 change log unchanged; it contains all the changes since
26974.43. The change log for 4.44 is below; many of its items are identical to
2698those for 4.50. This seems to be the most sensible way to preserve the
2699historical information.
2700
2701
f7b63901 2702Exim version 4.50
495ae4b0
PH
2703-----------------
2704
5fe762f6
PH
2705 1. Minor wording change to the doc/README.SIEVE file.
2706
139059f6 2707 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2708 computation of the current number of files was incorrect.
495ae4b0 2709
7086e875
PH
2710 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2711 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2712 place.
2713
35af9f61
PH
2714 4. Give more explanation in the error message when the command for a transport
2715 filter fails to execute.
2716
b668c215
PH
2717 5. There are several places where Exim runs a non-Exim command in a
2718 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2719 was being done only for the command run by the queryprogram router. It is
2720 now done for all such subprocesses. The other cases are: ${run, transport
2721 filters, and the commands run by the lmtp and pipe transports.
2722
a494b1e1
PH
2723 6. Added CONFIGURE_GROUP build-time option.
2724
2725 7. Some older OS have a limit of 256 on the maximum number of file
2726 descriptors. Exim was using setrlimit() to set 1000 as a large value
2727 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2728 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2729
c5fcb476
PH
2730 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2731 was an oversight, and furthermore, ever since the addition of extra
2732 controls (e.g. 4.43/32), the checks on when to allow different forms of
2733 "control" were broken. There should now be diagnostics for all cases when a
2734 control that does not make sense is encountered.
2735
69358f02
PH
2736 9. Added the /retain_sender option to "control=submission".
2737
5be20824
PH
273810. $recipients is now available in the predata ACL (oversight).
2739
eb2c0248
PH
274011. Tidy the search cache before the fork to do a delivery from a message
2741 received from the command line. Otherwise the child will trigger a lookup
2742 failure and thereby defer the delivery if it tries to use (for example) a
2743 cached ldap connection that the parent has called unbind on.
2744
2a3eea10
PH
274512. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2746 of $address_data from the recipient verification was clobbered by the
2747 sender verification.
2748
274913. The value of address_data from a sender verification is now available in
2750 $sender_address_data in subsequent conditions in the ACL statement.
2751
23c7ff99
PH
275214. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2753
4deaf07d
PH
275415. Added a new option "connect=<time>" to callout options, to set a different
2755 connection timeout.
2756
926e1192
PH
275716. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2758 was its contents. (It was OK if the option was not defined at all.)
2759
650edc6f
PH
276017. A "Completed" log line is now written for messages that are removed from
2761 the spool by the -Mrm option.
2762
2c7db3f5
PH
276318. New variables $sender_verify_failure and $recipient_verify_failure contain
2764 information about exactly what failed.
2765
3d235903
PH
276619. Added -dd to debug only the daemon process.
2767
7c7ad977
PH
276820. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2769 handles timeouts, both on the server side and network timeouts. Renamed the
2770 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2771
981756db
PH
277221. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2773 It is now set to "smtps".
2774
d4eb88df
PH
277522. $host_address is now set to the target address during the checking of
2776 ignore_target_hosts.
2777
277823. When checking ignore_target_hosts for an ipliteral router, no host name was
2779 being passed; this would have caused $sender_host_name to have been used if
2780 matching the list had actually called for a host name (not very likely,
2781 since this list is usually IP addresses). A host name is now passed as
2782 "[x.x.x.x]".
2783
7d468ab8
PH
278424. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2785 code that specifies a non-restarting handler (typically sigaction() in
2786 modern systems) in an attempt to fix a rare and obscure crash bug.
2787
278825. Narrowed the window for a race in the daemon that could cause it to ignore
2789 SIGCHLD signals. This is not a major problem, because they are used only to
2790 wake it up if nothing else does.
2791
62c0818f
PH
279226. A malformed maildirsize file could cause Exim to calculate negative values
2793 for the mailbox size or file count. Odd effects could occur as a result.
2794 The maildirsize information is now recalculated if the size or filecount
2795 end up negative.
2796
26034054
PH
279727. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2798 support for a long time. Removed HAVE_SYS_VFS_H.
2799
af66f652
PH
280028. Installed the latest version of exipick from John Jetmore.
2801
90af77f4
PH
280229. In an address list, if the pattern was not a regular expression, an empty
2803 subject address (from a bounce message) matched only if the pattern was an
2804 empty string. Non-empty patterns were not even tested. This was the wrong
2805 because it is perfectly reasonable to use an empty address as part of a
2806 database query. An empty address is now tested by patterns that are
2807 lookups. However, all the other forms of pattern expect the subject to
2808 contain a local part and a domain, and therefore, for them, an empty
2809 address still always fails if the pattern is not itself empty.
2810
d8ef3577
PH
281130. Exim went into a mad DNS loop when attempting to do a callout where the
2812 host was specified on an smtp transport, and looking it up yielded more
2813 than one IP address.
2814
5cb8cbc6
PH
281531. Re-factored the code for checking spool and log partition space into a
2816 function that finds that data and another that does the check. The former
2817 is then used to implement four new variables: $spool_space, $log_space,
2818 $spool_inodes, and $log_inodes.
2819
14702f5b
PH
282032. The RFC2047 encoding function was originally intended for short strings
2821 such as real names; it was not keeping to the 75-character limit for
2822 encoded words that the RFC imposes. It now respects the limit, and
2823 generates multiple encoded words if necessary. To be on the safe side, I
2824 have increased the buffer size for the ${rfc2047: expansion operator from
2825 1024 to 2048 bytes.
2826
063b1e99
PH
282733. It is now permitted to omit both strings after an "if" condition; if the
2828 condition is true, the result is "true". As before, when the second string
2829 is omitted, a false condition yields an empty string. This makes it less
2830 cumbersome to write custom ACL and router conditions.
2831
652e1b65
PH
283234. Failure to deliver a bounce message always caused it to be frozen, even if
2833 there was an errors_to setting on the router. The errors_to setting is now
2834 respected.
2835
6f0c9a4f
PH
283635. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2837 canonical form (fully expanded) before being placed in
2838 $sender_host_address.
2839
33397d19
PH
284036. The table in the code that translates DNS record types into text (T_A to
2841 "A" for instance) was missing entries for NS and CNAME. It is just possible
2842 that this could have caused confusion if both these types were looked up
2843 for the same domain, because the text type is used as part of Exim's
2844 per-process caching. But the chance of anyone hitting this buglet seems
2845 very small.
2846
7bb56e1f
PH
284737. The dnsdb lookup has been extended in a number of ways.
2848
2849 (1) There is a new type, "zns", which walks up the domain tree until it
2850 finds some nameserver records. It should be used with care.
2851
ea3bc19b
PH
2852 (2) There is a new type, "mxh", which is like "mx" except that it returns
2853 just the host names, not the priorities.
2854
2855 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2856 looked up. The behaviour when one of the lookups defers can be
2857 controlled by a keyword.
7bb56e1f 2858
ea3bc19b 2859 (4) It is now possible to specify the separator character for use when
7bb56e1f 2860 multiple records are returned.
33397d19 2861
0bcb2a0e
PH
286238. The dnslists ACL condition has been extended: it is now possible to supply
2863 a list of IP addresses and/or domains to be looked up in a particular DNS
2864 domain.
2865
2ac0e484
PH
286639. Added log_selector=+queue_time_overall.
2867
4e1fde53
PH
286840. When running the queue in the test harness, wait just a tad after forking a
2869 delivery process, to get repeatability of debugging output.
2870
de365ded
PH
287141. Include certificate and key file names in error message when GnuTLS fails
2872 to set them up, because the GnuTLS error message doesn't include the name
2873 of the failing file when there is a problem reading it.
2874
f05da2e8
PH
287542. Allow both -bf and -bF in the same test run.
2876
d6453af2
PH
287743. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2878
f7b63901
PH
287944. The "Exiscan patch" is now merged into the mainline Exim source.
2880
288145. Sometimes the final signoff response after QUIT could fail to get
2882 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2883 < 0 before doing a fflush(). This bug looks as though it goes back to the
2884 introduction of TLS in release 3.20, but "sometimes" must have been rare
2885 because the tests only now provoked it.
2886
a444213a
PH
288746. Reset the locale to "C" after calling embedded Perl, in case it was changed
2888 (this can affect the format of dates).
2889
0ec020ea
PH
289047. exim_tidydb, when checking for the continued existence of a message for
2891 which it has found a message-specific retry record, was not finding
2892 messages that were in split spool directories. Consequently, it was
2893 deleting retry records that should have stayed in existence.
2894
b1206957
PH
289548. Steve fixed some bugs in eximstats.
2896
289749. The SPA authentication driver was not abandoning authentication and moving
2898 on to the next authenticator when an expansion was forced to fail,
2899 contradicting the general specification for all authenticators. Instead it
2900 was generating a temporary error. It now behaves as specified.
2901
26dd5a95
PH
290250. The default ordering of permitted cipher suites for GnuTLS was pessimal
2903 (the order specifies the preference for clients). The order is now AES256,
2904 AES128, 3DES, ARCFOUR128.
2905
343b2385
PH
290651. Small patch to Sieve code - explicitly set From: when generating an
2907 autoreply.
2908
1c5466b9
PH
290952. Exim crashed if a remote delivery caused a very long error message to be
2910 recorded - for instance if somebody sent an entire SpamAssassin report back
2911 as a large number of 550 error lines. This bug was coincidentally fixed by
2912 increasing the size of one of Exim's internal buffers (big_buffer) that
2913 happened as part of the Exiscan merge. However, to be on the safe side, I
2914 have made the code more robust (and fixed the comments that describe what
2915 is going on).
2916
55ee9ee3
PH
291753. Now that there can be additional text after "Completed" in log lines (if
2918 the queue_time_overall log selector is set), a one-byte patch to exigrep
2919 was needed to allow it to recognize "Completed" as not the last thing in
2920 the line.
2921
d38f8232
PH
292254. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2923 patch that reportedly fixes this has been added. I am not expert enough to
2924 create a test for it. This is what the patch creator wrote:
2925
2926 "I found a little strange behaviour of ldap code when working with
2927 Windows 2003 AD Domain, where users was placed in more than one
2928 Organization Units. When I tried to give exim partial DN, the exit code
2929 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2930 But simultaneously result of request was absolutely normal ldap result,
2931 so I produce this patch..."
2932
3295e65b
PH
2933 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2934 REFERENCE, so I have modified the code to exclude the patch when that macro
2935 is not defined.
2936
7102e136
PH
293755. Some experimental protocols are using DNS PTR records for new purposes. The
2938 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2939 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2940 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2941 CAN-2005-0021
7102e136 2942
3ca0ba97
PH
294356. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2944
c2bcbe20
PH
294557. Double the size of the debug message buffer (to 2048) so that more of very
2946 long debug lines gets shown.
2947
18ce445d
PH
294858. The exicyclog utility now does better if the number of log files to keep
2949 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2950
1f5b4c3d
PH
295159. Two changes related to the smtp_active_hostname option:
2952
2953 (1) $smtp_active_hostname is now available as a variable.
2954 (2) The default for smtp_banner uses $smtp_active_hostname instead
2955 of $primary_hostname.
2956
b975ba52
PH
295760. The host_aton() function is supposed to be passed a string that is known
2958 to be a valid IP address. However, in the case of IPv6 addresses, it was
2959 not checking this. This is a hostage to fortune. Exim now panics and dies
2960 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2961 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2962 components; fortuitously, this particular loophole had already been fixed
2963 by change 4.50/55 above.
2964
2965 If there are any other similar loopholes, the new check in host_aton()
2966 itself should stop them being exploited. The report I received stated that
2967 data on the command line could provoke the exploit when Exim was running as
2968 exim, but did not say which command line option was involved. All I could
2969 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2970 running as the user.
ea3a6f44 2971 CAN-2005-0021
85b87bc2
PH
2972
297361. There was a buffer overflow vulnerability in the SPA authentication code
2974 (which came originally from the Samba project). I have added a test to the
2975 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2976 CAN-2005-0022
b975ba52 2977
17ffcae7
PH
297862. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2979 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2980
d95f9fdb
PH
298163. The daemon start-up calls getloadavg() while still root for those OS that
2982 need the first call to be done as root, but it missed one case: when
2983 deliver_queue_load_max is set with deliver_drop_privilege. This is
2984 necessary for the benefit of the queue runner, because there is no re-exec
2985 when deliver_drop_privilege is set.
2986
86b8287f
PH
298764. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2988 This has been fixed.
2989
60dc5e56
PH
299065. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2991 was in use, was not putting the data itself into the right store pool;
2992 consequently, it could be overwritten for a subsequent message in the same
2993 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2994 the caching.)
2995
533244af
PH
299666. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2997
a5a28604
PH
299867. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2999 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3000 the function were treating the return as a boolean value, which happened to
3001 work because 0=false and not-0=true, but is not correct code.
3002
7e634d24
PH
300368. The host_aton() function was not handling scoped IPv6 addresses (those
3004 with, for example, "%eth0" on the end) correctly.
3005
3e11c26b
PH
300669. Fixed some compiler warnings in acl.c for the bitmaps specified with
3007 negated items (that is, ~something) in unsigned ints. Some compilers
3008 apparently mutter when there is no cast.
3009
6729cf78
PH
301070. If an address verification called from an ACL failed, and did not produce a
3011 user-specific message (i.e. there was only a "system" message), nothing was
3012 put in $acl_verify_message. In this situation, it now puts the system
3013 message there.
3014
00f00ca5
PH
301571. Change 4.23/11 added synchronization checking at the start of an SMTP
3016 session; change 4.31/43 added the unwanted input to the log line - except
3017 that it did not do this in the start of session case. It now does.
3018
c9bdd01c
PH
301972. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3020 This is wrong and can cause the other end to generate a synchronization
3021 error if it is another Exim or anything else that does the synchronization
3022 check. A QUIT command is no longer sent after a timeout.
3023
d43194df
PH
302473. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3025 during host lookups.
3026
fe5b5d0b
PH
302774. The defer_ok option of callout verification was not working if it was used
3028 when verifying addresses in header lines, that is, for this case:
3029
3030 verify = header_sender/callout=defer_ok
3031
76a2d7ba
PH
303275. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3033 those file descriptors could be used for SMTP connections. If anything
3034 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3035 could be sent to the SMTP client, causing chaos. The daemon now opens
3036 stdin, stdout, and stderr to /dev/null when it puts itself into the
3037 background.
3038
303976. Arrange for output from Perl's "warn" command to be written to Exim's main
3040 log by default. The user can override this with suitable Perl magic.
3041
04f7d5b9
PH
304277. The use of log_message on a "discard" ACL verb, which is supposed to add to
3043 the log message when discard triggers, was not working for the DATA ACL or
3044 for the non-SMTP ACL.
3045
bc60667e
PH
304678. Error message wording change in sieve.c.
3047
bb6e88ff
PH
304879. If smtp_accept_max_per_host was set, the number of connections could be
3049 restricted to fewer than expected, because the daemon was trying to set up
3050 a new connection before checking whether the processes handling previous
3051 connections had finished. The check for completed processes is now done
3052 earlier. On busy systems, this bug wouldn't be noticed because something
3053 else would have woken the daemon, and it would have reaped the completed
3054 process earlier.
3055
1e70f85b
PH
305680. If a message was submitted locally by a user whose login name contained one
3057 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3058 It caused a spool format error. I have fixed the spool reading code. A
3059 related problem was that the "from" clause in the Received: line became
3060 illegal because of the space(s). It is now covered by ${quote_local_part.
3061
306281. Included the latest eximstats from Steve (adds average sizes to HTML Top
3063 tables).
3064
4e01f9d6
PH
306582. Updated OS/Makefile-AIX as per message from Mike Meredith.
3066
1ee1cef2
PH
306783. Patch from Sieve maintainer to fix unterminated string problem in
3068 "vacation" handling.
3069
6e2b4ccc
PH
307084. Some minor changes to the Linux configuration files to help with other
3071 OS variants using glibc.
3072
8e669ac1
PH
307385. One more patch for Sieve to update vacation handling to latest spec.
3074
495ae4b0 3075
bbe902f0
PH
3076----------------------------------------------------
3077See the note above about the 4.44 and 4.50 releases.
3078----------------------------------------------------
3079
3080
3081Exim version 4.44
3082-----------------
3083
3084 1. Change 4.43/35 introduced a bug that caused file counts to be
3085 incorrectly computed when quota_filecount was set in an appendfile
3086 transport
3087
3088 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3089 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3090 place.
3091
3092 3. Give more explanation in the error message when the command for a transport
3093 filter fails to execute.
3094
3095 4. There are several places where Exim runs a non-Exim command in a
3096 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3097 was being done only for the command run by the queryprogram router. It is
3098 now done for all such subprocesses. The other cases are: ${run, transport
3099 filters, and the commands run by the lmtp and pipe transports.
3100
3101 5. Some older OS have a limit of 256 on the maximum number of file
3102 descriptors. Exim was using setrlimit() to set 1000 as a large value
3103 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3104 systems. I've change it so that if it can't get 1000, it tries for 256.
3105
3106 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3107 was an oversight, and furthermore, ever since the addition of extra
3108 controls (e.g. 4.43/32), the checks on when to allow different forms of
3109 "control" were broken. There should now be diagnostics for all cases when a
3110 control that does not make sense is encountered.
3111
3112 7. $recipients is now available in the predata ACL (oversight).
3113
3114 8. Tidy the search cache before the fork to do a delivery from a message
3115 received from the command line. Otherwise the child will trigger a lookup
3116 failure and thereby defer the delivery if it tries to use (for example) a
3117 cached ldap connection that the parent has called unbind on.
3118
3119 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3120 of $address_data from the recipient verification was clobbered by the
3121 sender verification.
3122
312310. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3124 was its contents. (It was OK if the option was not defined at all.)
3125
312611. A "Completed" log line is now written for messages that are removed from
3127 the spool by the -Mrm option.
3128
312912. $host_address is now set to the target address during the checking of
3130 ignore_target_hosts.
3131
313213. When checking ignore_target_hosts for an ipliteral router, no host name was
3133 being passed; this would have caused $sender_host_name to have been used if
3134 matching the list had actually called for a host name (not very likely,
3135 since this list is usually IP addresses). A host name is now passed as
3136 "[x.x.x.x]".
3137
313814. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3139 code that specifies a non-restarting handler (typically sigaction() in
3140 modern systems) in an attempt to fix a rare and obscure crash bug.
3141
314215. Narrowed the window for a race in the daemon that could cause it to ignore
3143 SIGCHLD signals. This is not a major problem, because they are used only to
3144 wake it up if nothing else does.
3145
314616. A malformed maildirsize file could cause Exim to calculate negative values
3147 for the mailbox size or file count. Odd effects could occur as a result.
3148 The maildirsize information is now recalculated if the size or filecount
3149 end up negative.
3150
315117. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3152 support for a long time. Removed HAVE_SYS_VFS_H.
3153
ea3a6f44 315418. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3155
315619. Allow an empty sender to be matched against a lookup in an address list.
3157 Previously the only cases considered were a regular expression, or an
3158 empty pattern.
3159
316020. Exim went into a mad DNS lookup loop when doing a callout where the
3161 host was specified on the transport, if the DNS lookup yielded more than
3162 one IP address.
3163
ea3a6f44
NM
316421. The RFC2047 encoding function was originally intended for short strings
3165 such as real names; it was not keeping to the 75-character limit for
3166 encoded words that the RFC imposes. It now respects the limit, and
3167 generates multiple encoded words if necessary. To be on the safe side, I
3168 have increased the buffer size for the ${rfc2047: expansion operator from
3169 1024 to 2048 bytes.
bbe902f0 3170
ea3a6f44
NM
317122. Failure to deliver a bounce message always caused it to be frozen, even if
3172 there was an errors_to setting on the router. The errors_to setting is now
3173 respected.
bbe902f0
PH
3174
317523. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3176 canonical form (fully expanded) before being placed in
3177 $sender_host_address.
3178
317924. Updated eximstats to version 1.33
3180
ea3a6f44
NM
318125. Include certificate and key file names in error message when GnuTLS fails
3182 to set them up, because the GnuTLS error message doesn't include the name
3183 of the failing file when there is a problem reading it.
bbe902f0
PH
3184
318526. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3186 As per change 25.
bbe902f0 3187
ea3a6f44
NM
318827. Reset the locale to "C" after calling embedded Perl, in case it was changed
3189 (this can affect the format of dates).
bbe902f0 3190
ea3a6f44
NM
319128. exim_tidydb, when checking for the continued existence of a message for
3192 which it has found a message-specific retry record, was not finding
3193 messages that were in split spool directories. Consequently, it was
3194 deleting retry records that should have stayed in existence.
bbe902f0
PH
3195
319629. eximstats updated to version 1.35
3197 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3198 1.35 - bugfix such that pie charts by volume are generated correctly
3199
ea3a6f44
NM
320030. The SPA authentication driver was not abandoning authentication and moving
3201 on to the next authenticator when an expansion was forced to fail,
3202 contradicting the general specification for all authenticators. Instead it
3203 was generating a temporary error. It now behaves as specified.
bbe902f0 3204
ea3a6f44
NM
320531. The default ordering of permitted cipher suites for GnuTLS was pessimal
3206 (the order specifies the preference for clients). The order is now AES256,
3207 AES128, 3DES, ARCFOUR128.
bbe902f0 3208
ea3a6f44
NM
320931. Small patch to Sieve code - explicitly set From: when generating an
3210 autoreply.
bbe902f0 3211
ea3a6f44
NM
321232. Exim crashed if a remote delivery caused a very long error message to be
3213 recorded - for instance if somebody sent an entire SpamAssassin report back
3214 as a large number of 550 error lines. This bug was coincidentally fixed by
3215 increasing the size of one of Exim's internal buffers (big_buffer) that
3216 happened as part of the Exiscan merge. However, to be on the safe side, I
3217 have made the code more robust (and fixed the comments that describe what
3218 is going on).
bbe902f0 3219
ea3a6f44
NM
322033. Some experimental protocols are using DNS PTR records for new purposes. The
3221 keys for these records are domain names, not reversed IP addresses. The
3222 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3223 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3224 CAN-2005-0021
3225
ea3a6f44
NM
322634. The host_aton() function is supposed to be passed a string that is known
3227 to be a valid IP address. However, in the case of IPv6 addresses, it was
3228 not checking this. This is a hostage to fortune. Exim now panics and dies
3229 if the condition is not met. A case was found where this could be provoked
3230 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3231 components; fortuitously, this particular loophole had already been fixed
3232 by change 4.50/55 or 4.44/33 above.
3233
3234 If there are any other similar loopholes, the new check in host_aton()
3235 itself should stop them being exploited. The report I received stated that
3236 data on the command line could provoke the exploit when Exim was running as
3237 exim, but did not say which command line option was involved. All I could
3238 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3239 running as the user.
bbe902f0
PH
3240 CAN-2005-0021
3241
ea3a6f44
NM
324235. There was a buffer overflow vulnerability in the SPA authentication code
3243 (which came originally from the Samba project). I have added a test to the
3244 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3245 CAN-2005-0022
3246
ea3a6f44
NM
324736. The daemon start-up calls getloadavg() while still root for those OS that
3248 need the first call to be done as root, but it missed one case: when
3249 deliver_queue_load_max is set with deliver_drop_privilege. This is
3250 necessary for the benefit of the queue runner, because there is no re-exec
3251 when deliver_drop_privilege is set.
bbe902f0 3252
ea3a6f44
NM
325337. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3254 was in use, was not putting the data itself into the right store pool;
3255 consequently, it could be overwritten for a subsequent message in the same
3256 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3257 the caching.)
bbe902f0 3258
ea3a6f44
NM
325938. Sometimes the final signoff response after QUIT could fail to get
3260 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3261 < 0 before doing a fflush(). This bug looks as though it goes back to the
3262 introduction of TLS in release 3.20, but "sometimes" must have been rare
3263 because the tests only now provoked it.
bbe902f0
PH
3264
3265
495ae4b0
PH
3266Exim version 4.43
3267-----------------
3268
3269 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3270 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3271 Now it returns an integer. A number of calls were still expecting a T/F
3272 return. Fortuitously, in all cases, the tests worked in OK situations,
3273 which is the norm. However, things would have gone wrong on any write
3274 failures on the smtp file descriptor. This function is used when sending
3275 messages over SMTP and also when doing verify callouts.
3276
3277 2. When Exim is called to do synchronous delivery of a locally submitted
3278 message (the -odf or -odi options), it no longer closes stderr before doing
3279 the delivery.
3280
3281 3. Implemented the mua_wrapper option.
3282
3283 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3284
3285 5. Implemented the functions header_remove(), header_testname(),
3286 header_add_at_position(), and receive_remove_recipient(), and exported them
3287 to local_scan().
3288
3289 6. If an ACL "warn" statement specified the addition of headers, Exim already
3290 inserted X-ACL-Warn: at the start if there was no header name. However, it
3291 was not making this test for the second and subsequent header lines if
3292 there were newlines in the string. This meant that an invalid header could
3293 be inserted if Exim was badly configured.
3294
3295 7. Allow an ACL "warn" statement to add header lines at the start or after all
3296 the Received: headers, as well as at the end.
3297
3298 8. Added the rcpt_4xx retry error code.
3299
3300 9. Added postmaster_mailfrom=xxx to callout verification option.
3301
330210. Added mailfrom=xxxx to the callout verification option, for verify=
3303 header_sender only.
3304
330511. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3306 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3307
330812. Inserted some casts to stop certain compilers warning when using pointer
3309 differences as field lengths or precisions in printf-type calls (mostly
3310 affecting debugging statements).
3311
331213. Added optional readline() support for -be (dynamically loaded).
3313
331414. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3315 same clock tick as a message's arrival, so that its received time was the
3316 same as the "first fail" time on the retry record, and that message
3317 remained on the queue past the ultimate address timeout, every queue runner
3318 would try a delivery (because it was past the ultimate address timeout) but
3319 after another failure, the ultimate address timeout, which should have then
3320 bounced the address, did not kick in. This was a "< instead of <=" error;
3321 in most cases the first failure would have been in the next clock tick
3322 after the received time, and all would be well.
3323
332415. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3325 being recognized when the domain list was tested by the match_domain
3326 condition in an expansion string.
3327
332816. Added the ${str2b64: operator.
3329
333017. Exim was always calling setrlimit() to set a large limit for the number of
3331 processes, without checking whether the existing limit was already
3332 adequate. (It did check for the limit on file descriptors.) Furthermore,
3333 errors from getrlimit() and setrlimit() were being ignored. Now they are
3334 logged to the main and panic logs, but Exim does carry on, to try to do its
3335 job under whatever limits there are.
3336
333718. Imported PCRE 5.0.
3338
333919. Trivial typo in log message " temporarily refused connection" (the leading
3340 space).
3341
334220. If the log selector return_path_on_delivery was set and an address was
3343 redirected to /dev/null, the delivery process crashed because it assumed
3344 that a return path would always be set for a "successful" delivery. In this
3345 case, the whole delivery is bypassed as an optimization, and therefore no
3346 return path is set.
3347
334821. Internal re-arrangement: the function for sending a challenge and reading
3349 a response while authentication was assuming a zero-terminated challenge
3350 string. It's now changed to take a pointer and a length, to allow for
3351 binary data in such strings.
3352
335322. Added the cyrus_sasl authenticator (code supplied by MBM).
3354
335523. Exim was not respecting finduser_retries when seeking the login of the
3356 uid under which it was called; it was always trying 10 times. (The default
3357 setting of finduser_retries is zero.) Also, it was sleeping after the final
3358 failure, which is pointless.
3359
336024. Implemented tls_on_connect_ports.
3361
336225. Implemented acl_smtp_predata.
3363
336426. If the domain in control=submission is set empty, Exim assumes that the
3365 authenticated id is a complete email address when it generates From: or
3366 Sender: header lines.
3367
336827. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3369 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3370 chown and chgrp in /bin and hostname in /usr/bin.
3371
337228. Exim was keeping the "process log" file open after each use, just as it
3373 does for the main log. This opens the possibility of it remaining open for
3374 long periods when the USR1 signal hits a daemon. Occasional processlog
3375 errors were reported, that could have been caused by this. Anyway, it seems
3376 much more sensible not to leave this file open at all, so that is what now
3377 happens.
3378
337929. The long-running daemon process does not normally write to the log once it
3380 has entered its main loop, and it closes the log before doing so. This is
3381 so that log files can straightforwardly be renamed and moved. However,
3382 there are a couple of unusual error situations where the daemon does write
3383 log entries, and I had neglected to close the log afterwards.
3384
338530. The text of an SMTP error response that was received during a remote
3386 delivery was being truncated at 512 bytes. This is too short for some of
3387 the long messages that one sometimes sees. I've increased the limit to
3388 1024.
3389
339031. It is now possible to make retry rules that apply only when a message has a
3391 specific sender, in particular, an empty sender.
3392
339332. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3394 it possible to be selective about when SMTP synchronization is enforced.
3395
339633. Added "control = caseful_local_part" and "control = "caselower_local_part".
3397
339832. Implemented hosts_connection_nolog.
3399
340033. Added an ACL for QUIT.
3401
340234. Setting "delay_warning=" to disable warnings was not working; it gave a
3403 syntax error.
3404
340535. Added mailbox_size and mailbox_filecount to appendfile.
3406
340736. Added control = no_multiline_responses to ACLs.
3408
340937. There was a bug in the logic of the code that waits for the clock to tick
3410 in the case where the clock went backwards by a substantial amount such
3411 that the microsecond fraction of "now" was more than the microsecond
3412 fraction of "then" (but the whole seconds number was less).
3413
341438. Added support for the libradius Radius client library this is found on
3415 FreeBSD (previously only the radiusclient library was supported).
3416
3417
3418Exim version 4.42
3419-----------------
3420
3421 1. When certain lookups returned multiple values in the form name=value, the
3422 quoting of the values was not always being done properly. Specifically:
3423 (a) If the value started with a double quote, but contained no whitespace,
3424 it was not quoted.
3425 (b) If the value contained whitespace other than a space character (i.e.
3426 tabs or newlines or carriage returns) it was not quoted.
3427 This fix has been applied to the mysql and pgsql lookups by writing a
3428 separate quoting function and calling it from the lookup code. The fix
3429 should probably also be applied to nisplus, ibase and oracle lookups, but
3430 since I cannot test any of those, I have not disturbed their existing code.
3431