openssl_options: rejig default code & debug prints.
[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
10906672
PP
6Exim version 4.76
7-----------------
8
9PP/01 The new ldap_require_cert option would segfault if used. Fixed.
10
754a0503
PP
11PP/02 Harmonised TLS library version reporting; only show if debugging.
12 Layout now matches that introduced for other libraries in 4.74 PP/03.
13
c0c7b2da
PP
14PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
15
10906672 16
aa097c4c
NM
17Exim version 4.75
18-----------------
19
4c9ef03a 20NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
21 Bugzilla 1073
22
7f3d9eff
TF
23TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
24 This fixes portability to compilers other than gcc, notably
25 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
26
159f52d2
TF
27TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
28 makefiles for portability to HP-UX and POSIX correctness.
29
0cc9542a
PP
30PP/01 Permit LOOKUP_foo enabling on the make command-line.
31 Also via indented variable definition in the Makefile.
32 (Debugging by Oliver Heesakkers).
33
f7274286
PP
34PP/02 Restore caching of spamd results with expanded spamd_address.
35 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
36
7b797365
PP
37PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
38 Improves build reliability. Fix from: Frank Elsner
39
caacae52
NM
40NM/02 Fix wide character breakage in the rfc2047 coding
41 Fixes bug 1064. Patch from Andrey N. Oktyabrski
42
09dcaba9
NM
43NM/03 Allow underscore in dnslist lookups
44 Fixes bug 1026. Patch from Graeme Fowler
45
bc19a55b
PP
46PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
47 Code patches from Adam Ciarcinski of NetBSD.
caacae52 48
bd4c9759
NM
49NM/04 Fixed exiqgrep to cope with mailq missing size issue
50 Fixes bug 943.
51
b72aab72
PP
52PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
53 is logged, to avoid truncation. Patch from John Horne.
54
2fe76745
PP
55PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
56 Patch from Jakob Hirsch.
57
76aa570c
PP
58PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
59 SQL string expansion failure details.
60 Patch from Andrey Oktyabrski.
61
f1e5fef5
PP
62PP/08 Bugzilla 486: implement %M datestamping in log filenames.
63 Patch from Simon Arlott.
64
4d805ee9
PP
65PP/09 New lookups functionality failed to compile on old gcc which rejects
66 extern declarations in function scope.
67 Patch from Oliver Fleischmann
68
cd59ab18
PP
69PP/10 Use sig_atomic_t for flags set from signal handlers.
70 Check getgroups() return and improve debugging.
71 Fixed developed for diagnosis in bug 927 (which turned out to be
72 a kernel bug).
73
332f5cf3
PP
74PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
75 Patch from Mark Zealey.
76
29cfeb94
PP
77PP/12 Bugzilla 1056: Improved spamd server selection.
78 Patch from Mark Zealey.
79
660242ad
PP
80PP/13 Bugzilla 1086: Deal with maildir quota file races.
81 Based on patch from Heiko Schlittermann.
82
bc4bc4c5
PP
83PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
84 Patch from Uwe Doering, sign-off by Michael Haardt.
85
2e64baa9
NM
86NM/05 Fix to spam.c to accommodate older gcc versions which dislike
87 variable declaration deep within a block. Bug and patch from
88 Dennis Davis.
89
bddd7526
PP
90PP/15 lookups-Makefile IRIX compatibilty coercion.
91
6bac1a9a
PP
92PP/16 Make DISABLE_DKIM build knob functional.
93
552193f0
NM
94NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
95 Patch by Simon Arlott
baeee2c1 96
1b587e48
TF
97TF/03 Fix valgrind.h portability to C89 compilers that do not support
98 variable argument macros. Our copy now differs from upstream.
99
aa097c4c 100
8c07b69f
TF
101Exim version 4.74
102-----------------
103
104TF/01 Failure to get a lock on a hints database can have serious
105 consequences so log it to the panic log.
106
c0ea85ab
TF
107TF/02 Log LMTP confirmation messages in the same way as SMTP,
108 controlled using the smtp_confirmation log selector.
109
0761d44e
TF
110TF/03 Include the error message when we fail to unlink a spool file.
111
0a349494
PP
112DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
113 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
114 for maintaining out-of-tree patches for some time.
115
116PP/01 Bugzilla 139: Documentation and portability issues.
117 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
118 Handle per-OS dynamic-module compilation flags.
119
fea24b2e
PP
120PP/02 Let /dev/null have normal permissions.
121 The 4.73 fixes were a little too stringent and complained about the
122 permissions on /dev/null. Exempt it from some checks.
123 Reported by Andreas M. Kirchwitz.
124
6545de78
PP
125PP/03 Report version information for many libraries, including
126 Exim version information for dynamically loaded libraries. Created
127 version.h, now support a version extension string for distributors
128 who patch heavily. Dynamic module ABI change.
129
1670ef10
PP
130PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
131 privilege escalation vulnerability whereby the Exim run-time user
132 can cause root to append content of the attacker's choosing to
133 arbitrary files.
134
c0886197
PP
135PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
136 (Wolfgang Breyha)
137
b7487bce
PP
138PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
139 If dropping privileges for untrusted macros, we disabled normal logging
140 on the basis that it would fail; for the Exim run-time user, this is not
141 the case, and it resulted in successful deliveries going unlogged.
142 Fixed. Reported by Andreas Metzler.
143
8c07b69f 144
97fd1e48 145Exim version 4.73
ed7f7860 146-----------------
97fd1e48
PP
147
148PP/01 Date: & Message-Id: revert to normally being appended to a message,
149 only prepend for the Resent-* case. Fixes regression introduced in
150 Exim 4.70 by NM/22 for Bugzilla 607.
151
6901c596
PP
152PP/02 Include check_rfc2047_length in configure.default because we're seeing
153 increasing numbers of administrators be bitten by this.
154
a8c8d6b5
JJ
155JJ/01 Added DISABLE_DKIM and comment to src/EDITME
156
77bb000f
PP
157PP/03 Bugzilla 994: added openssl_options main configuration option.
158
a29e5231
PP
159PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
160
ec5a0394 161PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 162
55c75993
PP
163PP/06 Adjust NTLM authentication to handle SASL Initial Response.
164
453a6645 165PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
166 without a peer certificate, leading to a segfault because of an
167 assumption that peers always have certificates. Be a little more
453a6645
PP
168 paranoid. Problem reported by Martin Tscholak.
169
8544e77a
PP
170PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
171 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
172 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
173 CL also introduces -bmalware, various -d+acl logging additions and
174 more caution in buffer sizes.
8544e77a 175
83e029d5
PP
176PP/09 Implemented reverse_ip expansion operator.
177
ed7f7860
PP
178PP/10 Bugzilla 937: provide a "debug" ACL control.
179
7d9f747b
PP
180PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
181
4b2241d2
PP
182PP/12 Bugzilla 973: Implement --version.
183
10385c15
PP
184PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
185
dbc4b90d
PP
186PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
187
532be449
PP
188PP/15 Bugzilla 816: support multiple condition rules on Routers.
189
6a8de854 190PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
191 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
192 ignore trailing whitespace.
6a8de854 193
5dc43717
JJ
194JJ/02 prevent non-panic DKIM error from being sent to paniclog
195
196JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
197 "exim" to be used
55c75993 198
3346ab01
PP
199PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
200 Notification from Dr Andrew Aitchison.
201
491fab4c
PP
202PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
203 ExtendedDetectionInfo response format.
204 Notification from John Horne.
205
13eb9497
PP
206PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
207 compatible.
208
209PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
210 XSL and documented dependency on system catalogs, with examples of how
211 it normally works.
212
7f36d675
DW
213DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
214 access.
215
c1d94452
DW
216DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
217 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
218 configuration file which is writeable by the Exim user or group.
219
e2f5dc15
DW
220DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
221 of configuration files to cover files specified with the -C option if
222 they are going to be used with root privileges, not just the default
223 configuration file.
224
cd25e41d
DW
225DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
226 option (effectively making it always true).
227
261dc43e
DW
228DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
229 files to be used while preserving root privileges.
230
fa32850b
DW
231DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
232 that rogue child processes cannot use them.
233
79d4bc3d
PP
234PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
235 run-time user, instead of root.
236
2cfd3221
PP
237PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
238 Exim run-time user without dropping privileges.
239
fb08281f
DW
240DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
241 result string, instead of calling string_vformat() twice with the same
242 arguments.
3346ab01 243
74935b98
DW
244DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
245 for other users. Others should always drop root privileges if they use
246 -C on the command line, even for a whitelisted configure file.
247
90b6341f
DW
248DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
249
57730b52
ML
250NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
251
66581d1e 252
465e92cf
JJ
253Exim version 4.72
254-----------------
255
453a6645
PP
256JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
257 $data_path, and $header_path variables; fixed documentation bugs and
258 typos
465e92cf 259
453a6645
PP
260JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
261 exipick to access non-standard spools, including the "frozen" queue
262 (Finput)
edae0343 263
9bd3e22c
NM
264NM/01 Bugzilla 965: Support mysql stored procedures.
265 Patch from Alain Williams
266
bb576ff7
NM
267NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
268
5a1a5845
NM
269NM/03 Bugzilla 955: Documentation fix for max_rcpts.
270 Patch from Andreas Metzler
271
981a9fad
NM
272NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
273 Patch from Kirill Miazine
274
7fc497ee
NM
275NM/05 Bugzilla 671: Added umask to procmail example.
276
1a41defa
JJ
277JJ/03 installed exipick 20100323.0, fixing doc bug
278
a466095c 279NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 280 directory. Notification and patch from Dan Rosenberg.
a466095c 281
94a6bd0b
NM
282TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
283
284TK/02 Improve log output when DKIM signing operation fails.
285
286MH/01 Treat the transport option dkim_domain as a colon separated
287 list, not as a single string, and sign the message with each element,
288 omitting multiple occurences of the same signer.
289
c1b141a8
NM
290NM/07 Null terminate DKIM strings, Null initialise DKIM variable
291 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 292
b26eacf1 293NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
294 Patch by Simon Arlott
295
179c5980 296PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 297 MBX locking. Notification from Dan Rosenberg.
179c5980 298
9bd3e22c 299
7c6d71af
NM
300Exim version 4.71
301-----------------
302
7d9f747b 303TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 304
f013fb92
NM
305NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
306
0eb8eedd
NM
307NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
308
663ee6d9
NM
309NM/03 Bugzilla 847: Enable DNSDB lookup by default.
310
177ebd9b
NM
311NM/04 Bugzilla 915: Flag broken perl installation during build.
312
7c6d71af 313
210f147e
NM
314Exim version 4.70
315-----------------
316
cdd3bb85 317TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 318 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
319
320TK/02 Write list of recipients to X-Envelope-Sender header when building
321 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 322 Hirsch).
cdd3bb85
TK
323
324TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
325 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 326 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
327
328TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
329 by Mark Daniel Reidel <mr@df.eu>.
330
210f147e
NM
331NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
332 When building exim an external PCRE library is now needed -
333 PCRE is a system library on the majority of modern systems.
334 See entry on PCRE_LIBS in EDITME file.
335
deafd5b3
NM
336NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
337 conversation. Added nologin parameter to request.
7d9f747b 338 Patch contributed by Kirill Miazine.
deafd5b3 339
089793a4
TF
340TF/01 Do not log submission mode rewrites if they do not change the address.
341
5f16ca82
TF
342TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
343
dae9d94e 344NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 345 log files in place. Contributed by Roberto Lima.
dae9d94e 346
7d9f747b 347NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 348
06864c44
TF
349TF/03 Bugzilla 615: When checking the local_parts router precondition
350 after a local_part_suffix or local_part_prefix option, Exim now
351 does not use the address's named list lookup cache, since this
352 contains cached lookups for the whole local part.
353
65a7d8c3 354NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 355 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 356
23510047 357TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 358
7d9f747b 359NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 360
7d8eec3a 361NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 362 Patch provided by Jan Srzednicki.
6c588e74 363
89dec7b6
TF
364TF/05 Leading white space used to be stripped from $spam_report which
365 wrecked the formatting. Now it is preserved.
5f28a6e8 366
a99de90c
TF
367TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
368 that they are available at delivery time.
369
e2803e40
TF
370TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
371
7199e1ee
TF
372TF/08 TLS error reporting now respects the incoming_interface and
373 incoming_port log selectors.
374
e276e04b
TF
375TF/09 Produce a more useful error message if an SMTP transport's hosts
376 setting expands to an empty string.
377
ce552449 378NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 379 Patch provided by Phil Pennock.
ce552449 380
e765a0f1 381NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 382 Patch provided by Richard Godbee.
e765a0f1 383
4f054c63 384NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 385 acl_smtp_notquit, added index entry.
4f054c63 386
7d9f747b
PP
387NM/09 Bugzilla 787: Potential buffer overflow in string_format.
388 Patch provided by Eugene Bujak.
24c929a2 389
7d9f747b
PP
390NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
391 accept(). Patch provided by Maxim Dounin.
cf73943b 392
b52bc06e 393NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 394 Patch provided by Phil Pennock.
b52bc06e 395
447de4b0
NM
396NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
397
4c69d561 398NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 399 Patch provided by Brad "anomie" Jorsch.
4c69d561 400
d5c39246 401NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 402 Patch provided by Dean Brooks.
9b989985 403
0b23848a
TK
404TK/05 Add native DKIM support (does not depend on external libraries).
405
8f3414a1 406NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 407 Patch provided by Graeme Fowler.
e2aacdfd 408
fb6f955d
NM
409NM/16 Bugzilla 851: Documentation example syntax fix.
410
411NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 412
7d9f747b
PP
413NM/18 Bugzilla 894: Fix issue with very long lines including comments in
414 lsearch.
dbb0bf41 415
7d9f747b
PP
416NM/19 Bugzilla 745: TLS version reporting.
417 Patch provided by Phil Pennock.
f3766eb5 418
7d9f747b
PP
419NM/20 Bugzilla 167: bool: condition support.
420 Patch provided by Phil Pennock.
36f12725 421
7d9f747b
PP
422NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
423 clients. Patch provided by Phil Pennock.
e6060e2c 424
7d9f747b
PP
425NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
426 Patch provided by Brad "anomie" Jorsch.
5eb690a1 427
7d9f747b
PP
428NM/23 Bugzilla 687: Fix misparses in eximstats.
429 Patch provided by Heiko Schlittermann.
d5c13d66 430
7d9f747b
PP
431NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
432 Patch provided by Heiko Schlittermann.
b2335c0b 433
7d9f747b 434NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 435 plus update to original patch.
f4cd9433 436
7d9f747b 437NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 438
7d9f747b
PP
439NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
440 Patch provided by David Brownlee.
8dc71ab3 441
7d9f747b 442NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 443
7d9f747b 444NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 445
7d9f747b 446NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 447
7d9f747b 448NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 449
17792b53 450NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 451 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 452
7d9f747b
PP
453NM/33 Bugzilla 898: Transport filter timeout fix.
454 Patch by Todd Rinaldo.
52383f8f 455
7d9f747b
PP
456NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
457 Patch by Serge Demonchaux.
5ca6d115 458
7d9f747b
PP
459NM/35 Bugzilla 39: Base64 decode bug fixes.
460 Patch by Jakob Hirsch.
baee9eee 461
7d9f747b 462NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 463
7d9f747b 464NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 465
7d9f747b 466NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 467
7d9f747b 468NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 469
deafd5b3 470
47db1125
NM
471Exim version 4.69
472-----------------
473
4b3504d0
TK
474TK/01 Add preliminary DKIM support. Currently requires a forked version of
475 ALT-N's libdkim that I have put here:
476 http://duncanthrax.net/exim-experimental/
477
478 Note to Michael Haardt: I had to rename some vars in sieve.c. They
479 were called 'true' and it seems that C99 defines that as a reserved
480 keyword to be used with 'bool' variable types. That means you could
481 not include C99-style headers which use bools without triggering
482 build errors in sieve.c.
483
81ea09ca
NM
484NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
485 as mailq or other aliases. Changed the --help handling significantly
486 to do whats expected. exim_usage() emits usage/help information.
487
f13cddcb
SC
488SC/01 Added the -bylocaldomain option to eximstats.
489
7d9f747b 490NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 491
7d9f747b 492NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 493
7d9f747b 494NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
495
496
eb4c0de6
PH
497Exim version 4.68
498-----------------
499
500PH/01 Another patch from the Sieve maintainer.
501
6a3bceb1
PH
502PH/02 When an IPv6 address is converted to a string for single-key lookup
503 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
504 dots are used instead of colons so that keys in lsearch files need not
505 contain colons. This was done some time before quoting was made available
506 in lsearch files. However, iplsearch files do require colons in IPv6 keys
507 (notated using the quote facility) so as to distinguish them from IPv4
508 keys. This meant that lookups for IP addresses in host lists did not work
509 for iplsearch lookups.
510
511 This has been fixed by arranging for IPv6 addresses to be expressed with
512 colons if the lookup type is iplsearch. This is not incompatible, because
513 previously such lookups could never work.
514
515 The situation is now rather anomolous, since one *can* have colons in
516 ordinary lsearch keys. However, making the change in all cases is
517 incompatible and would probably break a number of configurations.
518
2e30fa9d
TK
519TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
520 version.
521
0806a9c5
MH
522MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
523 conversion specification without a maximum field width, thereby enabling
524 a rogue spamd server to cause a buffer overflow. While nobody in their
525 right mind would setup Exim to query an untrusted spamd server, an
526 attacker that gains access to a server running spamd could potentially
527 exploit this vulnerability to run arbitrary code as the Exim user.
528
ae276964
TK
529TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
530 $primary_hostname instead of what libspf2 thinks the hosts name is.
531
0f2cbd1b
MH
532MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
533 a directory entry by the name of the lookup key. Previously, if a
534 symlink pointed to a non-existing file or a file in a directory that
535 Exim lacked permissions to read, a lookup for a key matching that
536 symlink would fail. Now it is enough that a matching directory entry
537 exists, symlink or not. (Bugzilla 503.)
538
2b85bce7
PH
539PH/03 The body_linecount and body_zerocount variables are now exported in the
540 local_scan API.
541
93655c46
PH
542PH/04 Added the $dnslist_matched variable.
543
6c512171
PH
544PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
545 This means they are set thereafter only if the connection becomes
546 encrypted.
547
548PH/06 Added the client_condition to authenticators so that some can be skipped
549 by clients under certain conditions.
550
aa6dc513
PH
551PH/07 The error message for a badly-placed control=no_multiline_responses left
552 "_responses" off the end of the name.
553
a96603a0
PH
554PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
555
8f240103
PH
556PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
557 (without spaces) instead of just copying the configuration text.
558
559PH/10 Added the /noupdate option to the ratelimit ACL condition.
560
d677b2f2
PH
561PH/11 Added $max_received_linelength.
562
d52120f2
PH
563PH/12 Added +ignore_defer and +include_defer to host lists.
564
64f2600a
PH
565PH/13 Installed PCRE version 7.2. This needed some changes because of the new
566 way in which PCRE > 7.0 is built.
567
8669f003
PH
568PH/14 Implemented queue_only_load_latch.
569
a4dc33a8
PH
570PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
571 MAIL command. The effect was to mangle the value on 64-bit systems.
572
d6a60c0f
PH
573PH/16 Another patch from the Sieve maintainer.
574
8f128379
PH
575PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
576
8932dffe
PH
577PH/18 If a system quota error occurred while trying to create the file for
578 a maildir delivery, the message "Mailbox is full" was not appended to the
579 bounce if the delivery eventually timed out. Change 4.67/27 below applied
580 only to a quota excession during the actual writing of the file.
d6a60c0f 581
ddea74fa 582PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
583 characters?) which causes problems in log lines. The DN values are now
584 passed through string_printing() before being added to log lines.
585
ddea74fa 586PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
587 and InterBase are left for another time.)
588
ddea74fa
PH
589PH/21 Added message_body_newlines option.
590
ce9f225c
PH
591PH/22 Guard against possible overflow in moan_check_errorcopy().
592
19897d52
PH
593PH/23 POSIX allows open() to be a macro; guard against that.
594
bc64a74d
PH
595PH/24 If the recipient of an error message contained an @ in the local part
596 (suitably quoted, of course), incorrect values were put in $domain and
597 $local_part during the evaluation of errors_copy.
598
eb4c0de6 599
b4ed4da0
PH
600Exim version 4.67
601-----------------
602
22ad45c9
MH
603MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
604 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
605 Jan Srzednicki.
606
b4ed4da0
PH
607PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
608 issue a MAIL command.
609
431b7361
PH
610PH/02 In an ACL statement such as
611
612 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
613
614 if a client was not listed at all, or was listed with a value other than
615 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
616 the condition was not true (as it should be), so access was not denied.
617 The bug was that the ! inversion was incorrectly passed on to the second
618 item. This has been fixed.
619
620PH/03 Added additional dnslists conditions == and =& which are different from
621 = and & when the dns lookup returns more than one IP address.
622
83da1223
PH
623PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
624 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
625
54fc8428
PH
626PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
627 FSYNC, which compiles an option called disable_fsync that allows for
628 bypassing fsync(). The documentation is heavily laced with warnings.
629
34c5e8dd
SC
630SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
631
bbe15da8
PH
632PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
633 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
634 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
635 including adding "make clean"; (3) Added -fPIC when compiling the test
636 dynamically loaded module, to get rid of a warning.
637
0e8a9471
MH
638MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
639 message fails, move_frozen_messages = true and ignore_bounce_errors_after
640 = 0s. The bug is otherwise harmless.
641
f0872424
PH
642PH/07 There was a bug in the dovecot authenticator such that the value of
643 $auth1 could be overwritten, and so not correctly preserved, after a
644 successful authentication. This usually meant that the value preserved by
645 the server_setid option was incorrect.
646
b01dd148
PH
647PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
648
6bf342e1
PH
649PH/09 Installed PCRE release 7.0.
650
273f34d0
PH
651PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
652 run for batched SMTP input. It is now run at the start of every message
653 in the batch. While fixing this I discovered that the process information
654 (output by running exiwhat) was not always getting set for -bs and -bS
655 input. This is fixed, and it now also says "batched" for BSMTP.
656
cf8b11a5
PH
657PH/11 Added control=no_pipelining.
658
41c7c167
PH
659PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
660 patch, slightly modified), and move the expansion of helo_data till after
661 the connection is made in the smtp transport (so it can use these
662 values).
663
9c57cbc0
PH
664PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
665
f3f065bb
PH
666PH/14 Added log_selector = +pid.
667
047bdd8c
PH
668PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
669
0ce9abe6
PH
670PH/16 Add ${if forany and ${if forall.
671
0e22dfd1
PH
672PH/17 Added dsn_from option to vary the From: line in DSNs.
673
4c590bd1
PH
674PH/18 Flush SMTP output before performing a callout, unless control =
675 no_callout_flush is set.
676
09945f1e
PH
677PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
678 was true (the default) a successful delivery failed to delete the retry
679 item, thus causing premature timeout of the address. The bug is now
680 fixed.
681
c51b8e75
PH
682PH/20 Added hosts_avoid_pipelining to the smtp transport.
683
e28326d8
PH
684PH/21 Long custom messages for fakedefer and fakereject are now split up
685 into multiline reponses in the same way that messages for "deny" and
686 other ACL rejections are.
687
75b1493f
PH
688PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
689 with slight modification.
690
7c5214ec
PH
691PH/23 Applied sieve patches from the maintainer "tracking the latest notify
692 draft, changing the syntax and factoring some duplicate code".
693
4311097e
PH
694PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
695 for deliveries of the second and subsequent messages over the same SMTP
696 connection.
697
29f89cad
PH
698PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
699 ${reduce, with only minor "tidies".
700
5e687460
SC
701SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
702
c3611384
PH
703PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
704 expansion side effects.
705
5a11a7b4
PH
706PH/27 When a message times out after an over-quota error from an Exim-imposed
707 quota, the bounce message says "mailbox is full". This message was not
708 being given when it was a system quota that was exceeded. It now should
709 be the same.
710
0e20aff9
MH
711MH/03 Made $recipients available in local_scan(). local_scan() already has
712 better access to the recipient list through recipients_list[], but
713 $recipients can be useful in postmaster-provided expansion strings.
714
ca86f471
PH
715PH/28 The $smtp_command and $smtp_command_argument variables were not correct
716 in the case of a MAIL command with additional options following the
717 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
718 were accidentally chopped off.
719
a14e5636
PH
720PH/29 SMTP synchronization checks are implemented when a command is read -
721 there is a check that no more input is waiting when there shouldn't be
722 any. However, for some commands, a delay in an ACL can mean that it is
723 some time before the response is written. In this time, more input might
724 arrive, invalidly. So now there are extra checks after an ACL has run for
725 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
726 pipelining has not been advertised.
727
ec95d1a6
PH
728PH/30 MH's patch to allow iscntrl() characters to be list separators.
729
42855d71
PH
730PH/31 Unlike :fail:, a custom message specified with :defer: was not being
731 returned in the SMTP response when smtp_return_error_details was false.
732 This has been fixed.
733
57c2c631
PH
734PH/32 Change the Dovecot authenticator to use read() and write() on the socket
735 instead of the C I/O that was originally supplied, because problems were
736 reported on Solaris.
737
58c01c94
PH
738PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
739 Exim which did not show up earlier: it was assuming that a call to
740 SSL_CTX_set_info_callback() might give an error value. In fact, there is
741 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
742 was a macro that became an assignment, so it seemed to work. This has
743 changed to a proper function call with a void return, hence the compile
744 error. Exim's code has been fixed.
745
dee5a20a
PH
746PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
747 cpus.
748
d2ee6114
PH
749PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
750
b2d5182b
PH
751PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
752
79749a79
PH
753PH/37 If a message is not accepted after it has had an id assigned (e.g.
754 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
755 "Completed" line in the log. When some messages of this type were
756 selected by exigrep, they were listed as "not completed". Others were
757 picked up by some special patterns. I have improved the selection
758 criteria to be more general.
79749a79 759
c456d9bb
PH
760PH/38 The host_find_failed option in the manualroute router can now be set
761 to "ignore", to completely ignore a host whose IP address cannot be
762 found. If all hosts are ignored, the behaviour is controlled by the new
763 host_all_ignored option.
764
cd9868ec
PH
765PH/39 In a list of hosts for manualroute, if one item (either because of multi-
766 homing or because of multiple MX records with /mx) generated more than
767 one IP address, and the following item turned out to be the local host,
768 all the secondary addresses of the first item were incorrectly removed
769 from the list, along with the local host and any following hosts (which
770 is what is supposed to happen).
771
ebeaf996
PH
772PH/40 When Exim receives a message, it writes the login name, uid, and gid of
773 whoever called Exim into the -H file. In the case of the daemon it was
774 behaving confusingly. When first started, it used values for whoever
775 started the daemon, but after a SIGHUP it used the Exim user (because it
776 calls itself on a restart). I have changed the code so that it now always
777 uses the Exim user.
778
2679d413
PH
779PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
780 message are rejected with the same error (e.g. no authentication or bad
781 sender address), and a DATA command is nevertheless sent (as can happen
782 with PIPELINING or a stupid MUA), the error message that was given to the
783 RCPT commands is included in the rejection of the DATA command. This is
784 intended to be helpful for MUAs that show only the final error to their
785 users.
786
84024b72
PH
787PH/42 Another patch from the Sieve maintainer.
788
8005d38e
SC
789SC/02 Eximstats - Differentiate between permanent and temporary rejects.
790 Eximstats - Fixed some broken HTML links and added missing column headers
791 (Jez Hancock).
792 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
793 columns for Rejects, Temp Rejects, Ham, and Spam rows.
794
3298c6c6
SC
795SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
796
a43a27c5
PH
797PH/43 Yet another patch from the Sieve maintainer.
798
58eb016e 799PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
800 the response to the final '.' that terminates a message, but only in the
801 case where the client has not sent further data following the '.'
802 (unfortunately, this is allowed). However, in many cases there won't be
803 any further data because there won't be any more messages to send. A call
804 to select() can be used: if it shows that the input is "ready", there is
805 either input waiting, or the socket has been closed. An attempt to read
806 the next input character can distinguish the two cases. Previously, Exim
58eb016e 807 would have sent an OK response which the client would never have see.
563b63fa
PH
808 This could lead to message repetition. This fix should cure that, at
809 least in a lot of common cases.
58eb016e 810
b43a74ea
PH
811PH/45 Do not advertise STARTTLS in response to HELP unless it would be
812 advertised in response to EHLO.
813
b4ed4da0 814
5dd1517f
PH
815Exim version 4.66
816-----------------
817
818PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
819 fixed by 4.65/MH/01 (is this a record?) are fixed:
820
821 (i) An empty string was always treated as zero by the numeric comparison
822 operators. This behaviour has been restored.
823
824 (ii) It is documented that the numeric comparison operators always treat
825 their arguments as decimal numbers. This was broken in that numbers
826 starting with 0 were being interpreted as octal.
827
828 While fixing these problems I realized that there was another issue that
829 hadn't been noticed. Values of message_size_limit (both the global option
830 and the transport option) were treated as octal if they started with 0.
831 The documentation was vague. These values are now always treated as
832 decimal, and I will make that clear in the documentation.
833
834
93cfa765
TK
835Exim version 4.65
836-----------------
837
838TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
839 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
840 versions. (#438)
841
d6066548
MH
842MH/01 Don't check that the operands of numeric comparison operators are
843 integers when their expansion is in "skipping" mode (fixes bug
844 introduced by 4.64-PH/07).
845
4362ff0d
PH
846PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
847 child addresses, Exim now panics and dies. Previously, because the count
848 is held in a short int, deliveries were likely to be lost. As such a
849 large number of recipients for a single message is ridiculous
850 (performance will be very, very poor), I have chosen to impose a limit
851 rather than extend the field.
852
93cfa765 853
944e9e9c
TF
854Exim version 4.64
855-----------------
aa41d2de 856
21d74bd9
TK
857TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
858 leftover -K file (the existence of which was triggered by #402).
859 While we were at it, introduced process PID as part of the -K
860 filename. This should rule out race conditions when creating
861 these files.
862
863TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
864 processing considerably. Previous code took too long for large mails,
865 triggering a timeout which in turn triggers #401.
866
867TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
868 in the DK code in transports.c. sendfile() is not really portable,
869 hence the _LINUX specificness.
944e9e9c
TF
870
871TF/01 In the add_headers option to the mail command in an Exim filter,
872 there was a bug that Exim would claim a syntax error in any
873 header after the first one which had an odd number of characters
874 in the field name.
875
2b1c6e3a
PH
876PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
877 callout verification, Exim cached a "reject" for the entire domain. This
878 is correct for most verifications, but it is not correct for a recipient
879 verification with use_sender or use_postmaster set, because in that case
880 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
881 case of MAIL FROM:<> rejection from other early rejections (e.g.
882 rejection of HELO). When verifying a recipient using a non-null MAIL
883 address, the cache is ignored if it shows MAIL FROM:<> rejection.
884 Whatever the result of the callout, the value of the domain cache is
885 left unchanged (for any other kind of callout, getting as far as trying
886 RCPT means that the domain itself is ok).
887
1f872c80
PH
888PH/02 Tidied a number of unused variable and signed/unsigned warnings that
889 gcc 4.1.1 threw up.
890
891PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
892 manifest itself as EPIPE rather than ECONNECT. When tidying away a
893 session, the daemon ignores ECONNECT errors and logs others; it now
894 ignores EPIPE as well.
895
d203e649
PH
896PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
897 (quoted-printable decoding).
898
cc2ed8f7 899PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 900 later the small subsequent patch to fix an introduced bug.
f951fd57 901
ddfcd446
PH
902PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
903
d45b1de8
PH
904PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
905
906PH/08 An error is now given if message_size_limit is specified negative.
907
38a0a95f 908PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 909 to be given (somewhat) arbitrary names.
38a0a95f 910
a2405d83
JJ
911JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
912 in 4.64-PH/09.
913
914JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
915 miscellaneous code fixes
916
6ea85e9a
PH
917PH/10 Added the log_reject_target ACL modifier to specify where to log
918 rejections.
919
26da7e20
PH
920PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
921 hostname. This is wrong, because it relates to the incoming message (and
922 probably the interface on which it is arriving) and not to the outgoing
923 callout (which could be using a different interface). This has been
924 changed to use the value of the helo_data option from the smtp transport
925 instead - this is what is used when a message is actually being sent. If
926 there is no remote transport (possible with a router that sets up host
927 addresses), $smtp_active_hostname is used.
6ea85e9a 928
14aa5a05 929PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 930 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
931 (a) The code assumed that strncpy() returns a negative number on buffer
932 overflow, which isn't the case. Replaced with Exim's string_format()
933 function.
934 (b) There were several signed/unsigned issues. I just did the minimum
935 hacking in of casts. There is scope for a larger refactoring.
936 (c) The code used strcasecmp() which is not a standard C function.
937 Replaced with Exim's strcmpic() function.
938 (d) The code set only $1; it now sets $auth1 as well.
939 (e) A simple test gave the error "authentication client didn't specify
940 service in request". It would seem that Dovecot has changed its
941 interface. Fortunately there's a specification; I followed it and
942 changed what the client sends and it appears to be working now.
943
ff75a1f7
PH
944PH/13 Added $message_headers_raw to provide the headers without RFC 2047
945 decoding.
946
e6f6568e
PH
947PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
948 address A is aliased to B and C, where B exists and C does not. Without
949 -v the output is "A verified" because verification stops after a
950 successful redirection if more than one address is generated. However,
951 with -v the child addresses are also verified. Exim was outputting "A
952 failed to verify" and then showing the successful verification for C,
953 with its parentage. It now outputs "B failed to verify", showing B's
954 parentage before showing the successful verification of C.
955
d6f6e0dc
PH
956PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
957 look up a TXT record in a specific list after matching in a combined
958 list.
959
322050c2
PH
960PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
961 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
962 they consult the DNS. I had assumed they would set it the way they
963 wanted; and indeed my experiments on Linux seem to show that in some
964 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
965 To be on the safe side, however, I have now made the interface to
966 host_find_byname() similar to host_find_bydns(), with an argument
967 containing the DNS resolver options. The host_find_byname() function now
968 sets these options at its start, just as host_find_bydns() does. The smtp
969 transport options dns_qualify_single and dns_search_parents are passed to
970 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
971 of host_find_byname() use the default settings of RES_DEFNAMES
972 (qualify_single) but not RES_DNSRCH (search_parents).
973
08955dd3
PH
974PH/17 Applied (a modified version of) Nico Erfurth's patch to make
975 spool_read_header() do less string testing, by means of a preliminary
976 switch on the second character of optional "-foo" lines. (This is
977 overdue, caused by the large number of possibilities that now exist.
978 Originally there were few.) While I was there, I also converted the
979 str(n)cmp tests so they don't re-test the leading "-" and the first
980 character, in the hope this might squeeze out yet more improvement.
981
1eccaa59
PH
982PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
983 flag allowing group syntax was set by the header_syntax check but not
984 turned off, possible causing trouble later; (2) The flag was not being
985 set at all for the header_verify test, causing "group"-style headers to
986 be rejected. I have now set it in this case, and also caused header_
987 verify to ignore an empty address taken from a group. While doing this, I
988 came across some other cases where the code for allowing group syntax
989 while scanning a header line wasn't quite right (mostly, not resetting
990 the flag correctly in the right place). These bugs could have caused
991 trouble for malformed header lines. I hope it is now all correct.
992
602e59e5
PH
993PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
994 with the "reply" argument non-NULL. The code, however (which originally
995 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
996 but it didn't always do it. This confused somebody who was copying the
997 code for some other use. I have removed all the tests.
998
411ef850
PH
999PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1000 feature that was used to support insecure browsers during the U.S. crypto
1001 embargo. It requires special client support, and Exim is probably the
1002 only MTA that supported it -- and would never use it because real RSA is
1003 always available. This code has been removed, because it had the bad
1004 effect of slowing Exim down by computing (never used) parameters for the
1005 RSA_EXPORT functionality.
1006
7befa435
PH
1007PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1008 authenticator to fail if there's a tab character in the incoming data
1009 (there should never be unless someone is messing about, as it's supposed
1010 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1011 if the connection is using TLS or if the remote IP is the same as the
1012 local IP, and the "valid-client-cert option" if a client certificate has
1013 been verified.
1014
48da4259 1015PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1016 authenticators. This can be used for authorization after authentication
1017 succeeds. (In the case of plaintext, it servers for both authentication
1018 and authorization.)
1019
48da4259
PH
1020PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1021 if any retry times were supplied.
1022
d1d5595c
PH
1023PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1024 connection, where there is no client IP address to check. In this
1025 situation, the verify now always succeeds.
1026
0ef732d9
PH
1027PH/25 Applied John Jetmore's -Mset patch.
1028
328895cc
PH
1029PH/26 Added -bem to be like -Mset, but loading a message from a file.
1030
fd700877
PH
1031PH/27 In a string expansion for a processed (not raw) header when multiple
1032 headers of the same name were present, leading whitespace was being
1033 removed from all of them, but trailing whitespace was being removed only
1034 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1035 before concatenation. Completely empty headers in a concatenation (as
1036 before) are ignored.
fd700877 1037
8dce1a6f
PH
1038PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1039 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1040
17af4a17
PH
1041PH/29 [Removed. This was a change that I later backed out, and forgot to
1042 correct the ChangeLog entry (that I had efficiently created) before
1043 committing the later change.]
f6c332bd
PH
1044
1045PH/30 Exim was sometimes attempting to deliver messages that had suffered
1046 address errors (4xx response to RCPT) over the same connection as other
1047 messages routed to the same hosts. Such deliveries are always "forced",
1048 so retry times are not inspected. This resulted in far too many retries
1049 for the affected addresses. The effect occurred only when there were more
1050 hosts than the hosts_max_try setting in the smtp transport when it had
1051 the 4xx errors. Those hosts that it had tried were not added to the list
1052 of hosts for which the message was waiting, so if all were tried, there
1053 was no problem. Two fixes have been applied:
1054
1055 (i) If there are any address or message errors in an SMTP delivery, none
1056 of the hosts (tried or untried) are now added to the list of hosts
1057 for which the message is waiting, so the message should not be a
1058 candidate for sending over the same connection that was used for a
1059 successful delivery of some other message. This seems entirely
1060 reasonable: after all the message is NOT "waiting for some host".
1061 This is so "obvious" that I'm not sure why it wasn't done
1062 previously. Hope I haven't missed anything, but it can't do any
1063 harm, as the worst effect is to miss an optimization.
1064
1065 (ii) If, despite (i), such a delivery is accidentally attempted, the
1066 routing retry time is respected, so at least it doesn't keep
1067 hammering the server.
1068
c1114884
PH
1069PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1070 in ${readsocket because some servers need this prod.
1071
7a0743eb
PH
1072PH/32 Added some extra debug output when updating a wait-xxx database.
1073
0d85fa3f
PH
1074PH/33 The hint "could be header name not terminated by colon", which has been
1075 given for certain expansion errors for a long time, was not being given
1076 for the ${if def:h_colon_omitted{... case.
1077
1bf43b78
PH
1078PH/34 The spec says: "With one important exception, whenever a domain list is
1079 being scanned, $domain contains the subject domain." There was at least
1080 one case where this was not true.
1081
520de300
PH
1082PH/35 The error "getsockname() failed: connection reset by peer" was being
1083 written to the panic log as well as the main log, but it isn't really
1084 panic-worthy as it just means the connection died rather early on. I have
1085 removed the panic log writing for the ECONNRESET error when getsockname()
1086 fails.
1087
48c7f9e2
PH
1088PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1089 runs only) independently of the message's sender address. This meant
1090 that, if the 4xx error was in fact related to the sender, a different
1091 message to the same recipient with a different sender could confuse
1092 things. In particualar, this can happen when sending to a greylisting
1093 server, but other circumstances could also provoke similar problems.
1094 I have changed the default so that the retry time for these errors is now
1095 based a combination of the sender and recipient addresses. This change
1096 can be overridden by setting address_retry_include_sender=false in the
1097 smtp transport.
1098
99ea1c86
PH
1099PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1100 remote server are returned as part of bounce messages. This was not
1101 happening for LMTP over a pipe (the lmtp transport), but now it is the
1102 same for both kinds of LMTP.
1103
a2042e78
PH
1104PH/38 Despite being documented as not happening, Exim was rewriting addresses
1105 in header lines that were in fact CNAMEs. This is no longer the case.
1106
4fbcfc2e
PH
1107PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1108 and queue runs started by the daemon processed all messages. This has
1109 been fixed so that -R and -S can now usefully be given with -q<time>.
1110
aa41d2de
PH
1111PH/40 Import PCRE release 6.7 (fixes some bugs).
1112
af561417
PH
1113PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1114
3cc66b45
PH
1115PH/42 Give an error if -q is specified more than once.
1116
194cc0e4
PH
1117PH/43 Renamed the variables $interface_address and $interface_port as
1118 $received_ip_address and $received_port, to make it clear that these
1119 values apply to message reception, and not to the outgoing interface when
1120 a message is delivered. (The old names remain recognized, of course.)
1121
a401ddaa
PH
1122PH/44 There was no timeout on the connect() call when using a Unix domain
1123 socket in the ${readsocket expansion. There now is.
1124
4e88a19f
PH
1125PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1126 be meaningful with "accept".
1127
d7d7b289
SC
1128SC/01 Eximstats V1.43
1129 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1130
1131SC/02 Eximstats V1.44
1132 Use a glob alias rather than an array ref in the generated
1133 parser. This improves both readability and performance.
1134
1135SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1136 Collect SpamAssassin and rejection statistics.
1137 Don't display local sender or destination tables unless
1138 there is data to show.
1139 Added average volumes into the top table text output.
1140
1141SC/04 Eximstats V1.46
1142 Collect data on the number of addresses (recipients)
1143 as well as the number of messages.
1144
1145SC/05 Eximstats V1.47
1146 Added 'Message too big' to the list of mail rejection
1147 reasons (thanks to Marco Gaiarin).
1148
1149SC/06 Eximstats V1.48
1150 Mainlog lines which have GMT offsets and are too short to
1151 have a flag are now skipped.
1152
1153SC/07 Eximstats V1.49 (Alain Williams)
1154 Added the -emptyok flag.
1155
1156SC/08 Eximstats V1.50
1157 Fixes for obtaining the IP address from reject messages.
1158
0ea2a468
JJ
1159JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1160 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1161 whitesspace changes from 4.64-PH/27
1162
1163JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1164 match 4.64-PH/13
1165
1166JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1167 are found, allow negative numbers in numeric criteria)
1168
1169JJ/06 exipick.20061117.2, added new $message_body_missing variable
1170
1171JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1172 to match changes made in 4.64-PH/43
1173
8a10f5a4
PH
1174PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1175
30e18802
PH
1176PH/47 Put in an explicit test for a DNS lookup of an address record where the
1177 "domain" is actually an IP address, and force a failure. This locks out
1178 those revolvers/nameservers that support "A-for-A" lookups, in
1179 contravention of the specifications.
1180
55728a4f
PH
1181PH/48 When a host name was looked up from an IP address, and the subsequent
1182 forward lookup of the name timed out, the host name was left in
1183 $sender_host_name, contrary to the specification.
d7d7b289 1184
d7837193
PH
1185PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1186 restricted to single-key lookups, Exim was not diagnosing an error if
1187 * or *@ was used with a query-style lookup.
1188
87054a31
PH
1189PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1190
ea2c01d2
MH
1191MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1192 long ago, but noone interested enough thought of it. Let's just say that
1193 the "1.1" means that there are some new functions that weren't there at
1194 some point in the past.
1195
e4fa6968
PH
1196PH/51 Error processing for expansion failure of helo_data from an smtp
1197 transport during callout processing was broken.
1198
56f5d9bd
PH
1199PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1200 tested/used via the -bh/-bhc/-bs options.
1201
922e1c28
PH
1202PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1203 bug, fixed in subsequent PCRE releases).
1204
21eb6e72
PH
1205PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1206 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1207
a0540757
PH
1208PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1209
944e9e9c 1210
478be7b0
SC
1211Exim version 4.63
1212-----------------
1213
1214SC/01 Use a glob alias rather than an array ref in eximstats generated
1215 parser. This improves both readability and performance.
1216
1217SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1218 Don't display local sender or destination tables in eximstats unless
1219 there is data to show.
1220 Added average volumes into the eximstats top table text output.
1221
1222SC/03 Collect data on the number of addresses (recipients) as well
1223 as the number of messages in eximstats.
1224
2b965a65
TF
1225TF/01 Correct an error in the documentation for the redirect router. Exim
1226 does (usually) call initgroups() when daemonizing.
478be7b0 1227
45b91596
PH
1228TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1229 with consistent privilege compared to when running as a daemon.
478be7b0 1230
c59f5781
TF
1231TF/03 Note in the spec that $authenticated_id is not set for local
1232 submissions from trusted users.
1233
90fc3069
TF
1234TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1235 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1236
6083aca0
TF
1237TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1238 by adding some example configuration directives to the default
1239 configuration file. A little bit of work is required to uncomment the
1240 directives and define how usernames and passwords are checked, but
1241 there is now a framework to start from.
1242
765b530f
PH
1243PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1244 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1245 without this. I don't know how relevant this is to other LDAP libraries.
1246
4e167a8c
PH
1247PH/02 Add the verb name to the "unknown ACL verb" error.
1248
4608d683
PH
1249PH/03 Magnus Holmgren's patch for filter_prepend_home.
1250
b8dc3e4a
PH
1251PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1252
5418e93b
PH
1253PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1254 directory not expanded when it should be if an expanded home directory
1255 was set for the address (which is overridden by the transport).
1256
b4a9bda2
PH
1257PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1258 libradius.
1259
45b91596
PH
1260PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1261 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1262 because it is too late at that time, and has no effect.
1263
5547e2c5
PH
1264PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1265 security issue with \' (bugzilla #107). I could not use the
1266 PQescapeStringConn() function, because it needs a PGconn value as one of
1267 its arguments.
1268
dbcef0ea
PH
1269PH/08 When testing addresses using -bt, indicate those final addresses that
1270 are duplicates that would not cause an additional delivery. At least one
1271 person was confused, thinking that -bt output corresponded to deliveries.
1272 (Suppressing duplicates isn't a good idea as you lose the information
1273 about possibly different redirections that led to the duplicates.)
1274
25257489
PH
1275PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1276 systems where poll() doesn't work, in particular OS X.
1277
c816d124
PH
1278PH/10 Added more information to debugging output for retry time not reached.
1279
a9ccd69a
PH
1280PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1281 operations in malware.c.
1282
75fa1910
PH
1283PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1284 signatures.
1285
a7d7aa58
PH
1286PH/13 If write_rejectlog was set false when logging was sent to syslog with
1287 syslog_duplication set false, log lines that would normally be written
1288 both the the main log and to the reject log were not written to syslog at
1289 all.
1290
42119b09
PH
1291PH/14 In the default configuration, change the use of "message" in ACL warn
1292 statements to "add_header".
1293
41609df5
PH
1294PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1295 not followed by a command (e.g. "seen endif").
1296
a5bd321b
PH
1297PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1298 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1299 latter.
1300
e85a7ad5 1301PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1302 so that it is now:
1303
e85a7ad5
PH
1304 ${if or { \
1305 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1306 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1307 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1308 }{no}{yes}}
1309
e85a7ad5
PH
1310 The Auto-Submitted: and various List- headers are standardised, whereas I
1311 don't think Precedence: ever was.
5dff5817 1312
d8fe1c03
PH
1313PH/18 Refactored debugging code in route_finduser() to show more information,
1314 in particular, the error code if getpwnam() issues one.
1315
16282d2b
PH
1316PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1317 This is apparently needed in addition to the PH/07 change above to avoid
1318 any possible encoding problems.
1319
35d40a98
PH
1320PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1321 but not after initializing Perl.
1322
034d99ab
PH
1323PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1324 output them only if debugging. By default they are written stderr,
1325 apparently, which is not desirable.
1326
6ec97b1b
PH
1327PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1328 queries.
1329
e22ca4ac
JJ
1330JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1331 --not options
1332
1333JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1334
33d73e3b
PH
1335PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1336 authenticated or an ident call has been made. Suppress the default
1337 values for $authenticated_id and $authenticated_sender (but permit -oMai
1338 and -oMas) when testing with -bh.
1339
9ecb03f3
PH
1340PH/24 Re-jigged the order of the tests in the default configuration so that the
1341 tests for valid domains and recipients precede the DNS black list and CSA
1342 tests, on the grounds that those ones are more expensive.
1343
084efe8d
PH
1344PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1345 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1346 This bug exists in every version of Exim that I still have, right back to
1347 0.12.
1348
366fc9f0
PH
1349PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1350 However, an attempt to turn on case-sensitivity in a regex key by
1351 including (?-i) didn't work because the subject string was already
1352 lowercased, and the effects were non-intuitive. It turns out that a
1353 one-line patch can be used to allow (?-i) to work as expected.
1354
c59f5781 1355
c887c79e
TF
1356Exim version 4.62
1357-----------------
1358
1359TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1360 other effects) broke the use of negated acl sub-conditions.
1361
1cce3af8
PH
1362PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1363 patch).
1364
afb3eaaf
PH
1365PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1366 "Deny" causes Exim to reject the incoming connection with a 554 error.
1367 Unfortunately, if there is a major crisis, such as a disk failure,
1368 tcp-wrappers gives "deny", whereas what one would like would be some
1369 kind of temporary error. A kludge has been added to help with this.
1370 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1371 554 error is used if errno is still zero or contains ENOENT (which occurs
1372 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1373 451 error is used.
1374
e173618b
PH
1375PH/03 Add -lutil to the default FreeBSD LIBS setting.
1376
dd16e114
PH
1377PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1378 errors. Otherwise a message that provokes a temporary error (when other
1379 messages do not) can cause a whole host to time out.
1380
f7fd3850
PH
1381PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1382 addresses were routed directly to files or pipes from a redirect router.
1383 File deliveries just didn't batch; pipe deliveries might have suffered
1384 odd errors.
1385
d87df92c
PH
1386PH/06 A failure to get a lock for a hints database would erroneously always say
1387 "Failed to get write lock", even when it was really a read lock.
1388
7e9f683d
PH
1389PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1390 of 0600. This has been changed to use the value of the lockfile_mode
1391 option (which defaults to 0600).
1392
bfad5236
PH
1393PH/08 Applied small patch from the Sieve maintainer.
1394
01c490df
PH
1395PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1396 folder from quota calculations, a direct delivery into this folder messed
1397 up the contents of the maildirsize file. This was because the regex was
1398 used only to exclude .Trash (or whatever) when the size of the mailbox
1399 was calculated. There was no check that a delivery was happening into an
1400 excluded directory. This bug has been fixed by ignoring all quota
1401 processing for deliveries into excluded directories.
1402
d6629cdc
PH
1403PH/10 Added the maildirfolder_create_regex option to appendfile.
1404
1cce3af8 1405
214e2000
PH
1406Exim version 4.61
1407-----------------
1408
1409PH/01 The code for finding all the local interface addresses on a FreeBSD
1410 system running IPv6 was broken. This may well have applied to all BSD
1411 systems, as well as to others that have similar system calls. The broken
1412 code found IPv4 interfaces correctly, but gave incorrect values for the
1413 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1414 that it would not match correctly against @[] and not recognize the IPv6
1415 addresses as local.
1416
f9daeae0
PH
1417PH/02 The ipliteral router was not recognizing addresses of the form user@
1418 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1419
7e66e54d
PH
1420PH/03 Added disable_ipv6.
1421
c8ea1597
PH
1422PH/04 Changed $reply_address to use the raw form of the headers instead of the
1423 decoded form, because it is most often used to construct To: headers
1424 lines in autoreplies, and the decoded form may well be syntactically
1425 invalid. However, $reply_address has leading white space removed, and all
1426 newlines turned into spaces so that the autoreply transport does not
1427 grumble.
1428
911f6fde
PH
1429PH/05 If group was specified without a user on a router, and no group or user
1430 was specified on a transport, the group from the router was ignored.
1431
47ca6d6c
PH
1432PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1433 for visible compile-time settings that can be used to change these
1434 numbers, for those that want even more. Backwards compatibility with old
1435 spool files has been maintained. However, going back to a previous Exim
1436 release will lost any variables that are in spool files.
1437
ed0e9820
PH
1438PH/07 Two small changes when running in the test harness: increase delay when
1439 passing a TCP/IP connection to a new process, in case the original
1440 process has to generate a bounce, and remove special handling of
1441 127.0.0.2 (sic), which is no longer necessary.
1442
eff37e47
PH
1443PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1444 be the same on different OS.
1445
1921d2ea
PH
1446PH/09 Moved a debug statement in filter processing to avoid a race problem when
1447 testing.
1448
b3f69ca8
JJ
1449JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1450 whether --show-vars was specified or not
1451
1452JJ/02 exipick: Added support for new ACL variable spool format introduced
1453 in 4.61-PH/06
1454
424a1c63
PH
1455PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1456 syntactically invalid From: or Reply-to: line, and a filter used this to
1457 generate an autoreply, and therefore failed to obtain an address for the
1458 autoreply, Exim could try to deliver to a non-existent relative file
1459 name, causing unrelated and misleading errors. What now happens is that
1460 it logs this as a hard delivery error, but does not attempt to create a
1461 bounce message.
1462
7a100415
PH
1463PH/11 The exinext utility has a -C option for testing purposes, but although
1464 the given file was scanned by exinext itself; it wasn't being passed on
1465 when Exim was called.
1466
19b9dc85
PH
1467PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1468 an end-of-file indication when reading a command response.
1469
309bd837
PH
1470PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1471 compiled. In many other places in Exim, IPv6 addresses are always
1472 recognized, so I have changed this. It also means that IPv4 domain
1473 literals of the form [IPV4:n.n.n.n] are now always recognized.
1474
59e82a2a
PH
1475PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1476 used if the router is not running as root, for example, when verifying at
1477 ACL time, or when using -bh. The debugging output from this situation was
1478 non-existent - all you got was a failure to exec. I have made two
1479 changes:
1480
1481 (a) Failures to set uid/gid, the current directory, or a process leader
1482 in a subprocess such as that created by queryprogram now generate
1483 suitable debugging ouput when -d is set.
1484
1485 (b) The queryprogram router detects when it is not running as root,
1486 outputs suitable debugging information if -d is set, and then runs
1487 the subprocess without attempting to change uid/gid.
1488
9edc04ce
PH
1489PH/15 Minor change to Makefile for building test_host (undocumented testing
1490 feature).
1491
1349e1e5
PH
1492PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1493 additional section of a DNS packet that returns MX or SRV records.
1494 Instead, it always explicitly searches for A/AAAA records. This avoids
1495 major problems that occur when a DNS server includes only records of one
1496 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1497 fixed another bug: if SRV records were looked up and the corresponding
1498 address records were *not* found in the additional section, the port
1499 values from the SRV records were lost.
1500
ea49d0e1
PH
1501PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1502 using the correct key (the original address) when searching the retry
1503 rules in order to find which one to use for generating the retry hint.
1504
064a94c9
PH
1505PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1506 adding the default one. Similarly, if it contains a Reply-To: header, the
1507 errors_reply_to option, if set, is not used.
1508
727071f8
PH
1509PH/19 When calculating a retry time, Exim used to measure the "time since
1510 failure" by looking at the "first failed" field in the retry record. Now
1511 it does not use this if it is later than than the arrival time of the
1512 message. Instead it uses the arrival time. This makes for better
1513 behaviour in cases where some deliveries succeed, thus re-setting the
1514 "first failed" field. An example is a quota failure for a huge message
1515 when small messages continue to be delivered. Without this change, the
1516 "time since failure" will always be short, possible causing more frequent
1517 delivery attempts for the huge message than are intended.
dd16e114 1518 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1519
f78eb7c6
PH
1520PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1521 $1, $2, $3) because the numerical variables can be reset during some
1522 expansion items (e.g. "match"), thereby losing the authentication data.
1523
21c28500
PH
1524PH/21 Make -bV show the size of off_t variables so that the test suite can
1525 decide whether to run tests for quotas > 2G.
1526
1527PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1528 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1529 filecount value is greater than 2G or if a quota value is greater than 2G
1530 on a system where the size of off_t is not greater than 4, a panic error
1531 is given.
1532
1688f43b
PH
1533PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1534 never match. The debug and -bh output now contains an explicit error
1535 message indicating a malformed IPv4 address or mask.
1536
1537PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1538 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1539 PH/23 above applies.
1540
9675b384
PH
1541PH/25 Do not write to syslog when running in the test harness. The only
1542 occasion when this arises is a failure to open the main or panic logs
1543 (for which there is an explicit test).
1544
6a3f1455
PH
1545PH/26 Added the /no_tell option to "control=freeze".
1546
dac79d3e
PH
1547PH/27 If a host name lookup failed very early in a connection, for example, if
1548 the IP address matched host_lookup and the reverse lookup yielded a name
1549 that did not have a forward lookup, an error message of the form "no IP
1550 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1551 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1552
5977a0b3
PH
1553PH/28 An enabling patch from MH: add new function child_open_exim2() which
1554 allows the sender and the authenticated sender to be set when
1555 submitting a message from within Exim. Since child_open_exim() is
1556 documented for local_scan(), the new function should be too.
1557
c91535f3
PH
1558PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1559 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1560 results in an empty string is now treated as unset.
1561
0d46a8c8
PH
1562PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1563
278c6e6c
PH
1564PH/31 Added sender_verify_fail logging option.
1565
2cbb4081
PH
1566PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1567 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1568 tidied the source and removed it altogether.
1569
3eef829e
PH
1570PH/33 When a queue run was abandoned because the load average was too high, a
1571 log line was always written; now it is written only if the queue_run log
1572 selector is set. In addition, the log line for abandonment now contains
1573 information about the queue run such as the pid. This is always present
1574 in "start" and "stop" lines but was omitted from the "abandon" line.
1575
1ab95fa6
PH
1576PH/34 Omit spaces between a header name and the colon in the error message that
1577 is given when verify = headers_syntax fails (if there are lots of them,
1578 the message gets confusing).
1579
230205fc
PH
1580PH/35 Change the default for dns_check_names_pattern to allow slashes within
1581 names, as there are now some PTR records that contain slashes. This check
1582 is only to protect against broken name servers that fall over on strange
1583 characters, so the fact that it applies to all lookups doesn't matter.
1584
75e0e026
PH
1585PH/36 Now that the new test suite is complete, we can remove some of the
1586 special code in Exim that was needed for the old test suite. For example,
1587 sorting DNS records because real resolvers return them in an arbitrary
1588 order. The new test suite's fake resolver always returns records in the
1589 same order.
1590
1591PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1592 bounces) except when queue_only is set, to avoid logging races between
1593 the different processes.
1594
145396a6
PH
1595PH/38 Panic-die if .include specifies a non-absolute path.
1596
3cd34f13
PH
1597PH/39 A tweak to the "H" retry rule from its user.
1598
11121d3d
JJ
1599JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1600 a label. They prevented compilation on older perls.
1601
1602JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1603 a warning to be raised on newish perls.
1604
1605JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1606 on queue. Changes to match documented behaviour of showing count of
1607 messages matching specified criteria.
1608
8def5aaf
PH
1609PH/40 Changed the default ident timeout from 30s to 5s.
1610
929ba01c
PH
1611PH/41 Added support for the use of login_cap features, on those BSD systems
1612 that have them, for controlling the resources used by pipe deliveries.
1613
2632889e
PH
1614PH/42 The content-scanning code uses fopen() to create files in which to put
1615 message data. Previously it was not paying any attention to the mode of
1616 the files. Exim runs with umask(0) because the rest of the code creates
1617 files with open(), and sets the required mode explicitly. Thus, these
1618 files were ending up world-writeable. This was not a big issue, because,
1619 being within the spool directory, they were not world-accessible. I have
1620 created a function called modefopen, which takes an additional mode
1621 argument. It sets umask(777), creates the file, chmods it to the required
1622 mode, then resets the umask. All the relevant calls to fopen() in the
1623 content scanning code have been changed to use this function.
1624
944a9c55
PH
1625PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1626 to 24 hours. This avoids potential overflow problems when processing G
1627 and H retry rules. I suspect nobody ever tinkers with this value.
1628
4a23603b
PH
1629PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1630
4730f942
PH
1631PH/45 When the plaintext authenticator is running as a client, the server's
1632 challenges are checked to ensure they are valid base64 strings. By
1633 default, the authentication attempt is cancelled if an invalid string is
1634 received. Setting client_ignore_invalid_base64 true ignores these errors.
1635 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1636 they are received. Thus, the responses can be made to depend on the
1637 challenges. If an invalid string is ignored, an empty string is placed in
1638 the variable.
1639
30dba1e6
PH
1640PH/46 Messages that are created by the autoreply transport now contains a
1641 References: header, in accordance with RFCs 2822 and 3834.
1642
382afc6b
PH
1643PH/47 Added authenticated_sender_force to the smtp transport.
1644
a86229cf
PH
1645PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1646
50c99ba6
PH
1647PH/49 Installed latest patch from the Sieve maintainer.
1648
d35e429d
PH
1649PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1650 was also set, the appendfile transport was unnecessarily scanning a
1651 directory of message files (e.g. for maildir delivery) to find the count
1652 of files (along with the size), even though it did not need this
1653 information. It now does the scan only if it needs to find either the
1654 size of the count of files.
1655
f90d018c
PH
1656PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1657
75def545
PH
1658PH/52 Two bugs concerned with error handling when the smtp transport is
1659 used in LMTP mode:
1660
1661 (i) Exim was not creating retry information for temporary errors given
1662 for individual recipients after the DATA command when the smtp transport
1663 was used in LMTP mode. This meant that they could be retried too
1664 frequently, and not timed out correctly.
1665
1666 (ii) Exim was setting the flag that allows error details to be returned
1667 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1668 recipients that were returned after the DATA command.
1669
1670PH/53 This is related to PH/52, but is more general: for any failing address,
1671 when detailed error information was permitted to be returned to the
1672 sender, but the error was temporary, then after the final timeout, only
1673 "retry timeout exceeded" was returned. Now it returns the full error as
1674 well as "retry timeout exceeded".
1675
c46782ef
PH
1676PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1677 do this, and (what is worse) MTAs that accept it.
1678
71fafd95
PH
1679PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1680 will now be deprecated.
1681
2c5db4fd
PH
1682PH/56 New os.c-cygwin from the Cygwin maintainer.
1683
9cf6b11a
JJ
1684JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1685 formats (previously only available in exim formats via -bpr, -bpru,
1686 and -bpra. Now also available in native and exiqgrep formats)
1687
1688JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1689 with very large, slow to parse queues
1690
1691JJ/08 exipick: added ! as generic prefix to negate any criteria format
1692
1693JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1694
898d150f
PH
1695PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1696 responses to authentication challenges, though it was showing the
1697 challenges; (ii) I've removed the CR characters from the debug output for
1698 SMTP output lines.
1699
46218253
PH
1700PH/58 Allow for the insertion of a newline as well as a space when a string
1701 is turned into more than one encoded-word during RFC 2047 encoding. The
1702 Sieve code now uses this.
1703
e97957bc
PH
1704PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1705 data_4xx, lost_connection, tls_required.
1706
81e509d7
PH
1707PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1708 message was being sent as an SMTP response.
1709
3d240ff7
PH
1710PH/61 Add -l and -k options to exicyclog.
1711
b37c4101
PH
1712PH/62 When verifying, if an address was redirected to one new address, so that
1713 verification continued, and the new address failed or deferred after
1714 having set something in $address_data, the value of $address_data was not
1715 passed back to the ACL. This was different to the case when no
1716 redirection occurred. The value is now passed back in both cases.
1717
79378e0f
PH
1718PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1719 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1720 use login_cap.h, so on its own it isn't the distinguishing feature. The
1721 new name refers directly to the setclassresources() function.
1722
e49c7bb4
PH
1723PH/65 Added configuration files for NetBSD3.
1724
d114ec46
PH
1725PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1726
f3d7df6c
PH
1727PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1728 is preferred over IPv4.
1729
715ab376
PH
1730PH/68 The bounce_return_message and bounce_return_body options were not being
1731 honoured for bounces generated during the reception of non-SMTP messages.
1732 In particular, this applied to messages rejected by the ACL. This bug has
1733 been fixed. However, if bounce_return_message is true and bounce_return_
1734 body is false, the headers that are returned for a non-SMTP message
1735 include only those that have been read before the error was detected.
1736 (In the case of an ACL rejection, they have all been read.)
1737
6b31b150
PH
1738PH/69 The HTML version of the specification is now built in a directory called
1739 spec_html instead of spec.html, because the latter looks like a path with
1740 a MIME-type, and this confuses some software.
1741
1742PH/70 Catch two compiler warnings in sieve.c.
1743
d515a917
PH
1744PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1745 function verify_get_ident() calls ip_connect() to connect a socket, but
1746 if the "connect()" function timed out, ip_connect() used to close the
1747 socket. However, verify_get_ident() also closes the socket later, and in
1748 between Exim writes to the log, which may get opened at this point. When
1749 the socket was closed in ip_connect(), the log could get the same file
1750 descriptor number as the socket. This naturally causes chaos. The fix is
1751 not to close the socket in ip_connect(); the socket should be closed by
1752 the function that creates it. There was only one place in the code where
1753 this was missing, in the iplookup router, which I don't think anybody now
1754 uses, but I've fixed it anyway.
1755
9b8fadde
PH
1756PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1757 well as to direct DNS lookups. Otherwise the handling of names in host
1758 lists is inconsistent and therefore confusing.
1759
214e2000 1760
5de37277
PH
1761Exim version 4.60
1762-----------------
1763
cc38ddbf
PH
1764PH/01 Two changes to the default runtime configuration:
1765
1766 (1) Move the checks for relay_from_hosts and authenticated clients from
1767 after to before the (commented out) DNS black list checks.
1768
1769 (2) Add control=submission to the relay_from_hosts and authenticated
1770 clients checks, on the grounds that messages accepted by these
1771 statements are most likely to be submissions.
5de37277 1772
72fdd6ae
PH
1773PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1774
1775 (1) Generate an error if the third argument for the ${prvs expansion is
1776 not a single digit.
1777
1778 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1779 string.
1780
1781 (3) Reset the variables that are obtained from the first argument of
1782 ${prvscheck and used in the second argument before leaving the code,
1783 because their memory is reclaimed, so using them afterwards may do
1784 silly things.
1785
1786 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1787 one (it's much easier than Tom thought :-).
1788
1789 (5) Because of (4), we can now allow for the use of $prvscheck_result
1790 inside the third argument.
cb9328de 1791
cb741023
PH
1792PH/03 For some reason, the default setting of PATH when running a command from
1793 a pipe transport was just "/usr/bin". I have changed it to
1794 "/bin:/usr/bin".
1795
f174f16e
PH
1796PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1797 anything to be listed in the output from -bV.
b2f5a032 1798
c25242d7
PH
1799PH/05 When a filter generated an autoreply, the entire To: header line was
1800 quoted in the delivery log line, like this:
1801
1802 => >A.N.Other <ano@some.domain> <original@ddress> ...
1803
1804 This has been changed so that it extracts the operative address. There
1805 may be more than one such address. If so, they are comma-separated, like
1806 this:
1807
1808 => >ano@some.domain,ona@other.domain <original@ddress> ...
1809
82c19f95
PH
1810PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1811 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1812 not being looked up in the rDNS to get a host name, Exim was showing the
1813 IP address twice in Received: lines, even though the IP addresses were
1814 identical. For example:
1815
1816 Received: from [1.2.3.4] (helo=[1.2.3.4])
1817
1818 However, if the real host name was known, it was omitting the HELO data
1819 if it matched the actual IP address. This has been tidied up so that it
1820 doesn't show the same IP address twice.
1821
d7ffbc12
PH
1822PH/07 When both +timestamp and +memory debugging was on, the value given by
1823 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1824 called by the debug printing, thereby overwriting the timestamp buffer.
1825 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1826
9f526266
PH
1827PH/08 When the original message was included in an autoreply transport, it
1828 always said "this is a copy of the message, including all the headers",
1829 even if body_only or headers_only was set. It now gives an appropriate
1830 message.
1831
87fcc8b9
PH
1832PH/09 Applied a patch from the Sieve maintainer which:
1833
1834 o fixes some comments
1835 o adds the (disabled) notify extension core
1836 o adds some debug output for the result of if/elsif tests
1837 o points to the current vacation draft in the documentation
1838 and documents the missing references header update
1839
1840 and most important:
1841
1842 o fixes a bug in processing the envelope test (when testing
1843 multiple envelope elements, the last element determinted the
1844 result)
1845
456682f5
PH
1846PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1847 Electronic Mail") by including:
1848
1849 Auto-submitted: auto-generated
1850
1851 in the messages that it generates (bounce messages and others, such as
1852 warnings). In the case of bounce messages for non-SMTP mesages, there was
1853 also a typo: it was using "Auto_submitted" (underscore instead of
1854 hyphen). Since every message generated by Exim is necessarily in response
1855 to another message, thes have all been changed to:
1856
1857 Auto-Submitted: auto-replied
1858
1859 in accordance with these statements in the RFC:
1860
1861 The auto-replied keyword:
1862
1863 - SHOULD be used on messages sent in direct response to another
1864 message by an automatic process,
1865
1866 - MUST NOT be used on manually-generated messages,
1867
1868 - MAY be used on Delivery Status Notifications (DSNs) and Message
1869 Disposition Notifications (MDNs),
1870
1871 - MUST NOT be used on messages generated by automatic or periodic
1872 processes, except for messages which are automatic responses to
1873 other messages.
1874
3e46c1aa
PH
1875PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1876 to the default Received: header definition.
456682f5 1877
49826d12
PH
1878PH/12 Added log selector acl_warn_skipped (default on).
1879
eba0c039
PH
1880PH/13 After a successful wildlsearch lookup, discard the values of numeric
1881 variables because (a) they are in the wrong storage pool and (b) even if
1882 they were copied, it wouldn't work properly because of the caching.
1883
a0d6ba8a
PH
1884PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1885 checking when decoding. Apparently there are clients that generate
1886 overlong encoded strings. Why am I not surprised?
1887
f0917727
PH
1888PH/15 If the first argument of "${if match_address" was not empty, but did not
1889 contain an "@" character, Exim crashed. Now it writes a panic log message
1890 and treats the condition as false.
1891
096fee00
PH
1892PH/16 In autoreply, treat an empty string for "once" the same as unset.
1893
024bd3c2
PH
1894PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1895 extension "envelope-auth". The code is finished and in agreement with
1896 other implementations, but there is no documentation so far and in fact,
1897 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1898 not changing the active code.
1899
1900 Print executed "if" and "elsif" statements when debugging is used. This
1901 helps a great deal to understand what a filter does.
1902
1903 Document more things not specified clearly in RFC3028. I had all this
1904 sorted out, when out of a sudden new issues came to my mind. Oops."
1905
df199fec
PH
1906PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1907 (Bugzilla #53).
1908
d27f1df3
PH
1909PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1910 canonical form (as documented). However, after a host name lookup from
1911 the IP address, check_host() was doing a simple string comparison with
1912 addresses acquired from the DNS when checking that the found name did
1913 have the original IP as one of its addresses. Since any found IPv6
1914 addresses are likely to be in abbreviated form, the comparison could
1915 fail. Luckily, there already exists a function for doing the comparison
1916 by converting both addresses to binary, so now that is used instead of
1917 the text comparison.
1918
96776534
PH
1919PH/20 There was another similar case to PH/19, when a complete host name was
1920 given in a host list; looking up its IP address could give an abbreviated
1921 form, whereas the current host's name might or might not be abbreviated.
1922 The same fix has been applied.
1923
5de37277 1924
9a799bc0
PH
1925Exim version 4.54
1926-----------------
1927
1928PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1929 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1930 It now does.
1931
99a4b039
PH
1932PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1933 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1934
1935PH/03 Typo: missing ".o" in src/pcre/Makefile.
1936
4b233853
PH
1937PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1938 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1939 Also, for "Auto-Submitted", treat anything other than "no" as
1940 non-personal, in accordance with RFC 3834. (Previously it treated
1941 anything starting "auto-" as non-personal.)
1942
8857ccfd
PH
1943TF/01 The control=submission/name=... option had a problem with syntax
1944 errors if the name included a slash character. The /name= option
1945 now slurps the rest of the string, so it can include any characters
1946 but it must come last in the list of options (after /sender_retain
1947 or /domain=).
1948
433a2980
PH
1949PH/05 Some modifications to the interface to the fake nameserver for the new
1950 testing suite.
1951
3e46c1aa 1952
9a799bc0 1953
e3a311ba
TK
1954Exim version 4.53
1955-----------------
1956
1957TK/01 Added the "success_on_redirect" address verification option. See
1958 NewStuff for rationale and an example.
1959
13b685f9
PH
1960PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1961
395ff96d
PH
1962PH/02 Patch to exigrep to allow it to work on syslog lines.
1963
5b68f6e4
PH
1964PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1965 fread() to skip over the body file's header line, because in Cygwin the
1966 header line is locked and is inaccessible.
1967
1ab52c69
PH
1968PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1969 co-exist for some time) to make it clear that it is the Exim ID that is
1970 referenced, not the Message-ID: header line.
1971
b07e6aa3
PH
1972PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1973 string_format() function, because snprintf() does not exist on all
1974 operating systems.
1975
254e032f
PH
1976PH/06 The use of forbid_filter_existstest now also locks out the use of the
1977 ${stat: expansion item.
1978
3af76a81
PH
1979PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1980 protocol synchronization error", to keep the pedants happy.
1981
2548ba04
PH
1982PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1983 well as for IRIX systems, when gcc is being used. See the host.c source
1984 file for comments.
1985
b6c6011d
PH
1986PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1987
cf39cf57
PH
1988PH/10 Named domain lists were not working if used in a queue_smtp_domains
1989 setting.
1990
f1513293
PH
1991PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1992 transport and to the smtp transport in LMTP mode.
1993
727549a4
PH
1994TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1995
af46795e
PH
1996PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1997 run a filter in a subprocess. This could lead to confusion in subsequent
1998 lookups in the parent process. There should also be a search_tidyup() at
1999 the end of the subprocess.
2000
d7b47fd0
PH
2001PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2002 only if the host matched helo_try_verify_hosts, which caused the
2003 verification to occur when the EHLO/HELO command was issued. The ACL just
2004 tested the remembered result. Now, if a previous verification attempt has
2005 not happened, "verify = helo" does it there and then.
2006
ee744174
JJ
2007JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2008
b582ab87
PH
2009TK/03 Fix log output including CR from clamd.
2010
41a13e0a
PH
2011PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2012 exist provoked a memory error which could cause a segfault.
2013
f625cc5a
PH
2014PH/15 Installed PCRE 6.2
2015
2016PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2017
21f7af35
PH
2018PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2019 of the problem. Specifically, suggested +O2 rather than +O1 for the
2020 HP-UX compiler.
2021
31480e42
PH
2022PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2023
2d280592
PH
2024PH/20 If a delivery was routed to a non-standard port by means of an SRV
2025 record, the port was not correctly logged when the outgoing_port log
2026 selector was set (it logged the transort's default port).
2027
7cd1141b
PH
2028PH/21 Added support for host-specific ports to manualroute, queryprogram,
2029 fallback_hosts, and "hosts" in the smtp transport.
2030
2031PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2032 host errors such as "Connection refused".
2033
750af86e
PH
2034PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2035 authentication with radiusclient 0.4.9:
2036
2037 - Error returned from rc_read_config was caught wrongly
2038 - Username/password not passed on to radius server due to wrong length.
2039
2040 The presumption is that some radiusclient API changes for 4.51/PH/17
2041 were not taken care of correctly. The code is still untested by me (my
2042 Linux distribution still has 0.3.2 of radiusclient), but it was
2043 contributed by a Radius user.
2044
2045PH/24 When doing a callout, the value of $domain wasn't set correctly when
2046 expanding the "port" option of the smtp transport.
2047
4304270b
TK
2048TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2049 while reading a MIME header. Thanks to Tom Hughes for a patch.
2050
750af86e
PH
2051PH/24 Include config.h inside local_scan.h so that configuration settings are
2052 available.
2053
64ffc24f
PH
2054PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2055 that in an ACL for RCPT (for example), you can examine exactly what was
2056 received.
2057
5dd9625b
PH
2058PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2059 commands, but it was not correctly comparing the address with the actual
2060 client host address. Thus, it would show the EHLO address in Received:
2061 header lines when this was not necessary.
2062
5591031b
PH
2063PH/27 Added the % operator to ${eval:}.
2064
ba18e66a
PH
2065PH/28 Exim tries to create and chdir to its spool directory when it starts;
2066 it should be ignoring failures (because with -C, for example, it has lost
2067 privilege). It wasn't ignoring creation failures other than "already
2068 exists".
2069
9cec981f
PH
2070PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2071 -bV or -d is used.
2072
aa2b5c79
PH
2073PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2074 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2075 too many continuations, the temporary file was not being removed, and the
2076 return code was incorrect.
aa2b5c79 2077
48a53b7f
PH
2078PH/31 Missing "BOOL" in function definition in filtertest.c.
2079
1c59d63b
PH
2080PH/32 Applied Sieve patches from the maintainer.
2081
671012da
TK
2082TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2083
1509d3a8
PH
2084PH/33 Added "verify = not_blind".
2085
2086PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2087 Local/Makefile (with some defaults set). These are used in built scripts
2088 such as exicyclog, but they have never been used in the exim_install
2089 script (though there are many overriding facilities there). I have
2090 arranged that the exim_install script now takes note of these two
2091 settings.
2092
2093PH/35 Installed configuration files for Dragonfly.
2094
2fe1a124
PH
2095PH/36 When a locally submitted message by a trusted user did not contain a
2096 From: header, and the sender address was obtained from -f or from an SMTP
2097 MAIL command, and the trusted user did not use -F to supply a sender
2098 name, $originator_name was incorrectly used when constructing a From:
2099 header. Furthermore, $originator_name was used for submission mode
2100 messages from external hosts without From: headers in a similar way,
2101 which is clearly wrong.
2102
8800895a
PH
2103PH/37 Added control=suppress_local_fixups.
2104
ccfdb010
PH
2105PH/38 When log_selector = +received_sender was set, and the addition of the
2106 sender made the log line's construction buffer exactly full, or one byte
2107 less than full, an overflow happened when the terminating "\n" was
2108 subsequently added.
2109
1130bfb0
PH
2110PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2111 when the result of a list match is failure because a DNS lookup failed.
2112
ebcb507f
PH
2113PH/40 RM_COMMAND is now used in the building process.
2114
c35e155c
PH
2115PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2116 the "build-* directories that it finds.
2117
95d1f782
PH
2118PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2119 address in a domain literal was a prefix of an interface address.
2120
fd6de02e
PH
2121PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2122 when verifying a sender address, unless rewrite_headers is false.
2123
58de37c5
PH
2124PH/44 Wrote a long comment about why errors_to addresses are verified as
2125 recipients, not senders.
2126
261cf466
TF
2127TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2128 the ratelimit ACL was added.
2129
3ee512ff
PH
2130PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2131
e08c430f
PH
2132PH/46 Added extra information about PostgreSQL errors to the error string.
2133
bef5a11f
PH
2134PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2135 avoiding the need to install special zones in a real server. This is
2136 backwards compatible; if it can't find the fake resolver, it drops back.
2137 Thus, both old and new test suites can be run.
2138
7546de58
TF
2139TF/02 Added util/ratelimit.pl
2140
e5d5a95f
TF
2141TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2142 clock is set back in time.
2143
2e88a017
TF
2144TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2145 Candler <B.Candler@pobox.com>.
2146
a5f65aa4
TF
2147TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2148 OK for addresses that are the result of redirections.
2149
e7726cbf
PH
2150PH/48 A number of further additions for the benefit of the new test suite,
2151 including a fake gethostbyname() that interfaces to the fake DNS resolver
2152 (see PH/47 above).
2153
a7fdad5b
TF
2154TF/06 The fix for widen_domains has also been applied to qualify_single and
2155 search_parents which are the other dnslookup options that can cause
2156 header rewrites.
2157
6af56900
PH
2158PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2159 type ("H").
2160
0925ede6
PH
2161PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2162
66afa403
TF
2163TF/07 Exim produced the error message "an SRV record indicated no SMTP
2164 service" if it encountered an MX record with an empty target hostname.
2165 The message is now "an MX or SRV record indicated no SMTP service".
2166
0154e85a
TF
2167TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2168 if the DNS of the sending site is misconfigured. This is quite a
2169 common situation. This change restores the behaviour of treating a
2170 helo verification defer as a failure.
2171
16f12c76
PH
2172PH/51 If self=fail was set on a router, the bounce message did not include the
2173 actual error message.
2174
bbe902f0 2175
e5a9dba6
PH
2176Exim version 4.52
2177-----------------
2178
2179TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2180
22c3b60b
PH
2181PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2182 command itself ended in error, the underlying message about the transport
2183 filter timeout was being overwritten with the pipe command error. Now the
2184 underlying error message should be appended to the second error message.
2185
06a9b4b5
PH
2186TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2187
c1ac6996
PH
2188PH/02 Reduce the amount of output that "make" produces by default. Full output
2189 can still be requested.
2190
9c7a242c
PH
2191PH/03 The warning log line about a condition test deferring for a "warn" verb
2192 was being output only once per connection, rather than after each
2193 occurrence (because it was using the same function as for successful
2194 "warn" verbs). This seems wrong, so I have changed it.
2195
87ba3f5f
PH
2196TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2197 it should not have, which might have caused a crash in the right
2198 circumstances, but probably never did.
2199
2200PH/04 Installed a modified version of Tony Finch's patch to make submission
2201 mode fix the return path as well as the Sender: header line, and to
2202 add a /name= option so that you can make the user's friendly name appear
2203 in the header line.
2204
29aba418
TF
2205TF/03 Added the control = fakedefer ACL modifier.
2206
fe0dab11
TF
2207TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2208 Mark Lowes for thorough testing.
870f6ba8 2209
11d337a4
TK
2210TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2211
2212TK/03 Merged latest SRS patch from Miles Wilton.
2213
415c8f3b
PH
2214PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2215 with the definition in sysexits.h (which is #included earlier).
2216 Fortunately, Exim does not actually use EX_OK. The code used to try to
2217 preserve the sysexits.h value, by assumimg that macro definitions were
2218 scanned for macro replacements. I have been disabused of this notion,
2219 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2220
958541e9
PH
2221PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2222 in the smtp transport. When a block could not be written in a single
2223 write() function, the timeout was being re-applied to each part-write.
2224 This seems wrong - if the receiver was accepting one byte at a time it
2225 would take for ever. The timeout is now adjusted when this happens. It
2226 doesn't have to be particularly precise.
2227
c206415f
TK
2228TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2229 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2230
2a4be8f9
PH
2231PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2232 without a domain if the check to <postmaster@domain> fails.
2233
1cba11c5
SC
2234SC/01 Eximstats: added -xls and the ability to specify output files
2235 (patch written by Frank Heydlauf).
2236
2237SC/02 Eximstats: use FileHandles for outputing results.
2238
2239SC/03 Eximstats: allow any combination of xls, txt, and html output.
2240
2241SC/04 Eximstats: fixed display of large numbers with -nvr option
2242
2243SC/05 Eximstats: fixed merging of reports with empty tables.
2244
2245SC/06 Eximstats: added the -include_original_destination flag
2246
2247SC/07 Eximstats: removed tabs and trailing whitespace.
2248
1005d00e
TK
2249TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2250
2251TK/06 MBOX spool code: Add real "From " MBOX separator line
2252 so the .eml file is really in mbox format (even though
2253 most programs do not really care). Patch from Alex Miller.
2254
2255TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2256 The latter is generated from $received_to and is only set if the
2257 message has one envelope recipient. SA can use these headers,
2258 obviously out-of-the-box. Patch from Alex Miller.
2259
9b4768fa
PH
2260PH/08 The ${def test on a variable was returning false if the variable's
2261 value was "0", contrary to what the specification has always said!
2262 The result should be true unless the variable is empty.
2263
2264PH/09 The syntax error of a character other than { following "${if
2265 def:variable_name" (after optional whitespace) was not being diagnosed.
2266 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2267 accidental colon was present, for example, could give incorrect results.
2268
0d7eb84a
PH
2269PH/10 Tidied the code in a number of places where the st_size field of a stat()
2270 result is used (not including appendfile, where other changes are about
2271 to be made).
2272
2273PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2274 This involved changing a lot of size variables from int to off_t. It
2275 should work with maildirs and everything.
2276
40727bee
TK
2277TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2278 spamd dying while we are connected to it.
2279
554d2369
TF
2280TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2281 <jgh@wizmail.org>
2282
1f922db1
PH
2283PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2284 function for BDB 4.3.
2285
ef213c3b
PH
2286PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2287
8ac170f3
PH
2288PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2289 the sources for PCRE have been re-arranged and more files are now
2290 involved.
2291
b1c749bb
PH
2292PH/15 The code I had for printing potentially long long variables in PH/11
2293 above was not the best (it lost precision). The length of off_t variables
2294 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2295 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2296 to be "long long int" or "long int". This is needed for the internal
2297 formatting function string_vformat().
b1c749bb 2298
4aac9b49
PH
2299PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2300 the configuration file to be ":syslog", then the script "guesses" where
2301 the logs files are, rather than using the compiled in default. In our
2302 case the guess is not the same as the compiled default, so the script
2303 suddenly stopped working when I started to use syslog. The patch checks
2304 to see if log_file_path is "". If so, it attempts to read it from exim
2305 with no configuration file to get the compiled in version, before it
2306 falls back to the previous guessing code."
2307
294520c8
TK
2308TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2309 implementing BATV in an Exim configuration. See NewStuff for the gory
2310 details.
2311
5bd022fe
PH
2312PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2313 Makefile that are specific to HP-UX.
2314
90e9ce59
PH
2315PH/18 If the "use_postmaster" option was set for a recipient callout together
2316 with the "random" option, the postmaster address was used as the MAIL
2317 FROM address for the random test, but not for the subsequent recipient
2318 test. It is now used for both.
2319
5ea81592
PH
2320PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2321 patch removes a few documentation additions to RFC 3028, because the
2322 latest draft now contains them. It adds the new en;ascii-case comparator
2323 and a new error check for 8bit text in MIME parts. Comparator and
2324 require names are now matched exactly. I enabled the subaddress
2325 extension, but it is not well tested yet (read: it works for me)."
2326
c6c2dc1d
PH
2327PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2328 rework some of the code of TK/09 above to avoid the hardwired use of
2329 "%lld" and "long long". Replaced the call to snprintf() with a call to
2330 string_vformat().
2331
fffffe4c
PH
2332PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2333 records point to non-existent hosts", "retry timeout exceeded", and
2334 "retry time not reached for any host after a long failure period".
ca02eafb 2335
9a26b6b2
PH
2336PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2337 experimental DomainKeys support:
2338
2339 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2340 (2) On an error such as an illegally used "control", the wrong name for
2341 the control was given.
2342
2343 These problems did NOT occur unless DomainKeys support was compiled.
2344
4aee0225
PH
2345PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2346
32d668a5
PH
2347PH/24 Added ${if match_ip condition.
2348
8187c3f3
PH
2349PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2350 databases so that it will be absolutely obvious if a crash occurs in the
2351 DB library. This is a regular occurrence (often caused by mis-matched
2352 db.h files).
2353
ff790e47 2354PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2355 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2356 picked up on a user's system that detects such things. There doesn't seem
2357 to be a gcc warning option for this - only an attribute that has to be
2358 put on the function's prototype. It seems that in Fedora Core 4 they have
2359 set this on a number of new functions. No doubt there will be more in due
2360 course.
ff790e47 2361
5417f6d1
PH
2362PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2363 specify a transport. However, if an address that was verified by such a
2364 router was the subject of a callout, Exim crashed because it tried to
2365 read the rcpt_include_affixes from the non-existent transport. Now it
2366 just assumes that the setting of that option is false. This bug was
2367 introduced by 4.51/PH/31.
2368
59cf8544
PH
2369PH/28 Changed -d+all to exclude +memory, because that information is very
2370 rarely of interest, but it makes the output a lot bigger. People tend to
2371 do -d+all out of habit.
2372
e7ad8a65
PH
2373PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2374 code in os-type was giving problems when libc.so lives in lib64, like on
2375 x86_64 Fedora Core.
2376
ade42478
PH
2377PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2378 aren't the modern standard, and it seems that some systems' include files
2379 don't always have them. Exim was already checking for some of the newer
2380 ones like T_AAAA, and defining it itself. I've added checks for all the
2381 record types that Exim uses.
2382
182ad5cf
PH
2383PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2384 not automatically generating a new one, as it is supposed to. This
2385 prevented TLS from working. If the file did exist, but contained invalid
2386 data, a new version was generated, as expected. It was only the case of a
2387 non-existent file that was broken.
2388
b0d9fc80
TK
2389TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2390 with a change in libdomainkeys > 0.64.
2391
2392TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2393 from DNS. If the selector record carries the flag, it now has
2394 precedence over the domain-wide flag.
2395
2396TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2397
47c7a64a
PH
2398PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2399 the use of a port name that isn't defined in /etc/services) occurred, the
2400 message was deferred as in a normal delivery, and thus remained on the
2401 spool, instead of being failed because of the mua_wrapper setting. This
2402 is now fixed, and I tidied up some of the mua_wrapper messages at the
2403 same time.
2404
a388bce4
SC
2405SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2406 the messages in a hash of arrays rather than using individual hashes.
2407 This is a bit cleaner and results in dramatic memory savings, albeit
2408 at a slight CPU cost.
2409
2410SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2411 as requested by Marc Sherman.
2412
2413SC/10 Eximstats: added histograms for user specified patterns as requested
2414 by Marc Sherman.
2415
0793e4ed
SC
2416SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2417
c58b88df
PH
2418PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2419 fopen() in the content-scanning modules that did not already have it.
2420
e7ad8a65 2421
7982096b
PH
2422Exim version 4.51
2423-----------------
2424
1a46a8c5
PH
2425TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2426 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2427
2f079f46 2428TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2429
2430TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2431
2432PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2433 to test Sieve filters that use "vacation".
2434
2435PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2436 that changes the way the GnuTLS parameters are stored in the cache file.
2437 The new format can be generated externally. For backward compatibility,
2438 if the data in the cache doesn't make sense, Exim assumes it has read an
2439 old-format file, and it generates new data and writes a new file. This
2440 means that you can't go back to an older release without removing the
2441 file.
2442
2443PH/03 A redirect router that has both "unseen" and "one_time" set does not
2444 work if there are any delivery delays because "one_time" forces the
2445 parent to be marked "delivered", so its unseen clone is never tried
2446 again. For this reason, Exim now forbids the simultaneous setting of
2447 these two options.
2448
2449PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2450 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2451 entry if you want to know the details. The fix, however, neglected to
2452 consider the case when local delivery batching is involved. The test for
2453 "previously delivered" was not happening when checking to see if an
2454 address could be batched with a previous (undelivered) one; under
2455 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2456 address.
1a46a8c5
PH
2457
2458PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2459 in its include files, and this causes problems building Exim.
2460
2461PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2462 header_syntax) but Exim was just ignoring anything given after a slash.
2463 In particular, this caused confusion with an attempt to use "verify =
2464 reverse_host_lookup/defer_ok". An error is now given when options are
2465 supplied for verify items that do not have them. (Maybe reverse_host_
2466 lookup should have a defer_ok option, but that's a different point.)
2467
2468PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2469 defined by RFC 821) to 2048, because there were problems with some AUTH
2470 commands, and RFC 1869 says the size should be increased for extended
2471 SMTP commands that take arguments.
2472
2473PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2474 Finch).
2475
2476PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2477 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2478
49c2d5ea
PH
2479PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2480 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2481 whatever). Otherwise the password may appear in the log. Following change
2482 PH/42 below, there is no longer a chance of it appearing in a bounce
2483 message.
49c2d5ea 2484
bf759a8b
PH
2485PH/11 Installed exipick version 20050225.0 from John Jetmore.
2486
83364d30
PH
2487PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2488 of its addresses was ever tried. (Bugzilla bug #2.)
2489
7999bbd7
PH
2490PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2491 the result incorrectly in the debug output. (It correctly added a newline
2492 to what was transported.)
2493
7dbf77c9
PH
2494TF/01 Added $received_time.
2495
74e0617f
PH
2496PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2497 commented out examples of how to interface to a virus scanner and to
2498 SpamAssassin. Also added commented examples of av_scanner and
2499 spamd_address settings.
2500
2f079f46
PH
2501PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2502 and controls are allowed in which ACLs. There were a couple of minor
2503 errors. Some of the entries in the conditions table (which is a table of
2504 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2505 negation of where the condition IS allowed.
2506
8c841523
PH
2507PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2508
7766a4f0
PH
2509PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2510 header file does not have a version number, so I've had to invent a new
2511 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2512 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2513 radiusclient), but it was contributed by a Radius user.
2514
8b417f2c
PH
2515PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2516 files or directories, for OpenSSL.
2517
901f42cb
PH
2518PH/19 When an Exim process that is running as root has to create an Exim log
2519 file, it does so in a subprocess that runs as exim:exim so as to get the
2520 ownership right at creation (otherwise, other Exim processes might see
2521 the file with the wrong ownership). There was no test for failure of this
2522 fork() call, which would lead to the process getting stuck as it waited
2523 for a non-existent subprocess. Forks do occasionally fail when resources
2524 run out. I reviewed all the other calls to fork(); they all seem to check
2525 for failure.
2526
f9b9210e
PH
2527PH/20 When checking for unexpected SMTP input at connect time (before writing
2528 the banner), Exim was not dealing correctly with a non-positive return
2529 from the read() function. If the client had disconnected by this time,
2530 the result was a log entry for a synchronization error with an empty
2531 string after "input=" when read() returned zero. If read() returned -1
2532 (an event I could not check), uninitialized data bytes were printed.
2533 There were reports of junk text (parts of files, etc) appearing after
2534 "input=".
2535
54cdb463
PH
2536PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2537
cf00dad6
PH
2538PH/22 Added support for macro redefinition, and (re)definition in between
2539 driver and ACL definitions.
2540
acb1b346
PH
2541PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2542 forgetting to use the resulting value; it was using the unexpanded value.
2543
c5ddb310
PH
2544PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2545 hadn't been configured. The fix is from Juergen Kreileder, who
2546 understands it better than I do:
2547
2548 "Here's what I see happening with three configured cyrus_sasl
2549 authenticators configured (plain, login, cram-md5):
2550
2551 On startup auth_cyrus_sasl_init() gets called for each of these.
2552 This means three calls to sasl_listmech() without a specified mech_list.
2553 => SASL tests which mechs of all available mechs actually work
2554 => three warnings about OTP not working
2555 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2556
2557 With the patch, sasl_listmech() also gets called three times. But now
2558 SASL's mech_list option is set to the server_mech specified in the the
2559 authenticator. Or in other words, the answer from sasl_listmech()
2560 gets limited to just the mech you're testing for (which is different
2561 for each call.)
2562 => the return list contains just 'plain' or 'login', 'cram-md5' or
2563 nothing depending on the value of ob->server_mech.
2564
2565 I've just tested the patch: Authentication still works fine,
2566 unavailable mechs specified in the exim configuration are still
2567 caught, and the auth.log warnings about OTP are gone."
2568
31619da6
PH
2569PH/25 When debugging is enabled, the contents of the command line are added
2570 to the debugging output, even when log_selector=+arguments is not
2571 specified.
2572
bebaf0fc
PH
2573PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2574 answer is "GNU", and only if the return is "GNU/something" is the answer
2575 "Linux".
2576
475fe28a
PH
2577PH/27 $acl_verify_message is now set immediately after the failure of a
2578 verification in an ACL, and so is available in subsequent modifiers. In
2579 particular, the message can be preserved by coding like this:
2580
2581 warn !verify = sender
2582 set acl_m0 = $acl_verify_message
2583
2584 Previously, $acl_verify_message was set only while expanding "message"
2585 and "log_message" when a very denied access.
2586
7e8bec7a
PH
2587PH/28 Modified OS/os.c-Linux with
2588
2589 -#ifndef OS_LOAD_AVERAGE
2590 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2591
2592 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2593 nomenclature these days.)
2594
e4a89c47
PH
2595PH/29 Installed patch from the Sieve maintainer that adds the options
2596 sieve_useraddress and sieve_subaddress to the redirect router.
2597
5ca2a9a1
PH
2598PH/30 In these circumstances:
2599 . Two addresses routed to the same list of hosts;
2600 . First host does not offer TLS;
2601 . First host accepts first address;
2602 . First host gives temporary error to second address;
2603 . Second host offers TLS and a TLS session is established;
2604 . Second host accepts second address.
2605 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2606 and peerdn, if requested) that were in fact used only for the second
2607 address.
7e8bec7a 2608
c688b954
PH
2609PH/31 When doing a callout as part of verifying an address, Exim was not paying
2610 attention to any local part prefix or suffix that was matched by the
2611 router that accepted the address. It now behaves in the same way as it
2612 does for delivery: the affixes are removed from the local part unless
2613 rcpt_include_affixes is set on the transport.
2614
fed77020
PH
2615PH/32 Add the sender address, as F=<...>, to the log line when logging a
2616 timeout during the DATA phase of an incoming message.
2617
7fe1560f
PH
2618PH/33 Sieve envelope tests were broken for match types other than :is. I have
2619 applied a patch sanctioned by the Sieve maintainer.
c688b954 2620
ebb6e6d5
PH
2621PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2622 the uid or gid is negative. A case of a negative gid caused this to be
2623 noticed. The fix allows for either to be negative.
2624
9c4e8f60
PH
2625PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2626 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2627 overlooked.
2628
2629PH/36 The change PH/12 above was broken. Fixed it.
2630
d7174846
PH
2631PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2632 the grounds that routing the same address twice would always produce the
2633 same answer. This might have been true once, but it is certainly no
2634 longer true now. Routing a child address may depend on the previous
2635 routing that produced that child. Some complicated redirection strategies
2636 went wrong when messages had multiple recipients, and made Exim's
2637 behaviour dependent on the order in which the addresses were given.
2638
2639 I have moved the duplicate checking until after the routing is complete.
2640 Exim scans the addresses that are assigned to local and remote
2641 transports, and removes any duplicates. This means that more work will be
2642 done, as duplicates will always all be routed, but duplicates are
2643 presumably rare, so I don't expect this is of any significance.
2644
2645 For deliveries to pipes, files, and autoreplies, the duplicate checking
2646 still happens during the routing process, since they are not going to be
2647 routed further.
2648
cfe75fc3
PH
2649PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2650 It corrects a timeout issue with spamd. This is Ian's comment: "The
2651 background is that sometimes spamd either never reads data from a
2652 connection it has accepted, or it never writes response data. The exiscan
2653 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2654 blindly assumes that writes won't block so it may never time out."
2655
be22d70e
PH
2656PH/39 Allow G after quota size as well as K and M.
2657
0612b098
PH
2658PH/40 The value set for $authenticated_id in an authenticator may not contain
2659 binary zeroes or newlines because the value is written to log lines and
2660 to spool files. There was no check on this. Now the value is run through
2661 the string_printing() function so that such characters are converted to
2662 printable escape sequences.
2663
2e0c1448
PH
2664PH/41 $message_linecount is a new variable that contains the total number of
2665 lines in the message. Compare $body_linecount, which is the count for the
2666 body only.
2667
447d236c
PH
2668PH/42 Exim no longer gives details of delivery errors for specific addresses in
2669 bounce and delay warning messages, except in certain special cases, which
2670 are as follows:
2671
2672 (a) An SMTP error message from a remote host;
2673 (b) A message specified in a :fail: redirection;
2674 (c) A message specified in a "fail" command in a system filter;
2675 (d) A message specified in a FAIL return from the queryprogram router;
2676 (e) A message specified by the cannot_route_message router option.
2677
2678 In these cases only, Exim does include the error details in bounce and
2679 warning messages. There are also a few cases where bland messages such
2680 as "unrouteable address" or "local delivery error" are given.
2681
d20976dc
PH
2682PH/43 $value is now also set for the "else" part of a ${run expansion.
2683
f656d135
PH
2684PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2685 being worked on, but at least Exim now implements the latest version to
2686 play with."
2687
2e2a30b4
PH
2688PH/45 In a pipe transport, although a timeout while waiting for the pipe
2689 process to complete was treated as a delivery failure, a timeout while
2690 writing the message to the pipe was logged, but erroneously treated as a
2691 successful delivery. Such timeouts include transport filter timeouts. For
2692 consistency with the overall process timeout, these timeouts are now
2693 treated as errors, giving rise to delivery failures by default. However,
2694 there is now a new Boolean option for the pipe transport called
2695 timeout_defer, which, if set TRUE, converts the failures into defers for
2696 both kinds of timeout. A transport filter timeout is now identified in
2697 the log output.
2698
9176e9f0
PH
2699PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2700 systems where "make" and "gmake" are different, calling "gmake" at top
2701 level broke things. I've arranged for the value of $(MAKE) to be passed
2702 from the Makefile to this script so that it can call the same version of
2703 "make".
2704
7982096b 2705
bbe902f0
PH
2706A note about Exim versions 4.44 and 4.50
2707----------------------------------------
2708
2709Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2710changes of various kinds. As a consequence, a big documentation update was
2711needed. This delayed the release for rather longer than seemed good, especially
2712in the light of a couple of (minor) security issues. Therefore, the changes
2713that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2714release. So 4.44 and 4.50 are in effect two different branches that both start
2715from 4.43.
2716
2717I have left the 4.50 change log unchanged; it contains all the changes since
27184.43. The change log for 4.44 is below; many of its items are identical to
2719those for 4.50. This seems to be the most sensible way to preserve the
2720historical information.
2721
2722
f7b63901 2723Exim version 4.50
495ae4b0
PH
2724-----------------
2725
5fe762f6
PH
2726 1. Minor wording change to the doc/README.SIEVE file.
2727
139059f6 2728 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2729 computation of the current number of files was incorrect.
495ae4b0 2730
7086e875
PH
2731 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2732 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2733 place.
2734
35af9f61
PH
2735 4. Give more explanation in the error message when the command for a transport
2736 filter fails to execute.
2737
b668c215
PH
2738 5. There are several places where Exim runs a non-Exim command in a
2739 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2740 was being done only for the command run by the queryprogram router. It is
2741 now done for all such subprocesses. The other cases are: ${run, transport
2742 filters, and the commands run by the lmtp and pipe transports.
2743
a494b1e1
PH
2744 6. Added CONFIGURE_GROUP build-time option.
2745
2746 7. Some older OS have a limit of 256 on the maximum number of file
2747 descriptors. Exim was using setrlimit() to set 1000 as a large value
2748 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2749 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2750
c5fcb476
PH
2751 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2752 was an oversight, and furthermore, ever since the addition of extra
2753 controls (e.g. 4.43/32), the checks on when to allow different forms of
2754 "control" were broken. There should now be diagnostics for all cases when a
2755 control that does not make sense is encountered.
2756
69358f02
PH
2757 9. Added the /retain_sender option to "control=submission".
2758
5be20824
PH
275910. $recipients is now available in the predata ACL (oversight).
2760
eb2c0248
PH
276111. Tidy the search cache before the fork to do a delivery from a message
2762 received from the command line. Otherwise the child will trigger a lookup
2763 failure and thereby defer the delivery if it tries to use (for example) a
2764 cached ldap connection that the parent has called unbind on.
2765
2a3eea10
PH
276612. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2767 of $address_data from the recipient verification was clobbered by the
2768 sender verification.
2769
277013. The value of address_data from a sender verification is now available in
2771 $sender_address_data in subsequent conditions in the ACL statement.
2772
23c7ff99
PH
277314. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2774
4deaf07d
PH
277515. Added a new option "connect=<time>" to callout options, to set a different
2776 connection timeout.
2777
926e1192
PH
277816. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2779 was its contents. (It was OK if the option was not defined at all.)
2780
650edc6f
PH
278117. A "Completed" log line is now written for messages that are removed from
2782 the spool by the -Mrm option.
2783
2c7db3f5
PH
278418. New variables $sender_verify_failure and $recipient_verify_failure contain
2785 information about exactly what failed.
2786
3d235903
PH
278719. Added -dd to debug only the daemon process.
2788
7c7ad977
PH
278920. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2790 handles timeouts, both on the server side and network timeouts. Renamed the
2791 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2792
981756db
PH
279321. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2794 It is now set to "smtps".
2795
d4eb88df
PH
279622. $host_address is now set to the target address during the checking of
2797 ignore_target_hosts.
2798
279923. When checking ignore_target_hosts for an ipliteral router, no host name was
2800 being passed; this would have caused $sender_host_name to have been used if
2801 matching the list had actually called for a host name (not very likely,
2802 since this list is usually IP addresses). A host name is now passed as
2803 "[x.x.x.x]".
2804
7d468ab8
PH
280524. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2806 code that specifies a non-restarting handler (typically sigaction() in
2807 modern systems) in an attempt to fix a rare and obscure crash bug.
2808
280925. Narrowed the window for a race in the daemon that could cause it to ignore
2810 SIGCHLD signals. This is not a major problem, because they are used only to
2811 wake it up if nothing else does.
2812
62c0818f
PH
281326. A malformed maildirsize file could cause Exim to calculate negative values
2814 for the mailbox size or file count. Odd effects could occur as a result.
2815 The maildirsize information is now recalculated if the size or filecount
2816 end up negative.
2817
26034054
PH
281827. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2819 support for a long time. Removed HAVE_SYS_VFS_H.
2820
af66f652
PH
282128. Installed the latest version of exipick from John Jetmore.
2822
90af77f4
PH
282329. In an address list, if the pattern was not a regular expression, an empty
2824 subject address (from a bounce message) matched only if the pattern was an
2825 empty string. Non-empty patterns were not even tested. This was the wrong
2826 because it is perfectly reasonable to use an empty address as part of a
2827 database query. An empty address is now tested by patterns that are
2828 lookups. However, all the other forms of pattern expect the subject to
2829 contain a local part and a domain, and therefore, for them, an empty
2830 address still always fails if the pattern is not itself empty.
2831
d8ef3577
PH
283230. Exim went into a mad DNS loop when attempting to do a callout where the
2833 host was specified on an smtp transport, and looking it up yielded more
2834 than one IP address.
2835
5cb8cbc6
PH
283631. Re-factored the code for checking spool and log partition space into a
2837 function that finds that data and another that does the check. The former
2838 is then used to implement four new variables: $spool_space, $log_space,
2839 $spool_inodes, and $log_inodes.
2840
14702f5b
PH
284132. The RFC2047 encoding function was originally intended for short strings
2842 such as real names; it was not keeping to the 75-character limit for
2843 encoded words that the RFC imposes. It now respects the limit, and
2844 generates multiple encoded words if necessary. To be on the safe side, I
2845 have increased the buffer size for the ${rfc2047: expansion operator from
2846 1024 to 2048 bytes.
2847
063b1e99
PH
284833. It is now permitted to omit both strings after an "if" condition; if the
2849 condition is true, the result is "true". As before, when the second string
2850 is omitted, a false condition yields an empty string. This makes it less
2851 cumbersome to write custom ACL and router conditions.
2852
652e1b65
PH
285334. Failure to deliver a bounce message always caused it to be frozen, even if
2854 there was an errors_to setting on the router. The errors_to setting is now
2855 respected.
2856
6f0c9a4f
PH
285735. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2858 canonical form (fully expanded) before being placed in
2859 $sender_host_address.
2860
33397d19
PH
286136. The table in the code that translates DNS record types into text (T_A to
2862 "A" for instance) was missing entries for NS and CNAME. It is just possible
2863 that this could have caused confusion if both these types were looked up
2864 for the same domain, because the text type is used as part of Exim's
2865 per-process caching. But the chance of anyone hitting this buglet seems
2866 very small.
2867
7bb56e1f
PH
286837. The dnsdb lookup has been extended in a number of ways.
2869
2870 (1) There is a new type, "zns", which walks up the domain tree until it
2871 finds some nameserver records. It should be used with care.
2872
ea3bc19b
PH
2873 (2) There is a new type, "mxh", which is like "mx" except that it returns
2874 just the host names, not the priorities.
2875
2876 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2877 looked up. The behaviour when one of the lookups defers can be
2878 controlled by a keyword.
7bb56e1f 2879
ea3bc19b 2880 (4) It is now possible to specify the separator character for use when
7bb56e1f 2881 multiple records are returned.
33397d19 2882
0bcb2a0e
PH
288338. The dnslists ACL condition has been extended: it is now possible to supply
2884 a list of IP addresses and/or domains to be looked up in a particular DNS
2885 domain.
2886
2ac0e484
PH
288739. Added log_selector=+queue_time_overall.
2888
4e1fde53
PH
288940. When running the queue in the test harness, wait just a tad after forking a
2890 delivery process, to get repeatability of debugging output.
2891
de365ded
PH
289241. Include certificate and key file names in error message when GnuTLS fails
2893 to set them up, because the GnuTLS error message doesn't include the name
2894 of the failing file when there is a problem reading it.
2895
f05da2e8
PH
289642. Allow both -bf and -bF in the same test run.
2897
d6453af2
PH
289843. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2899
f7b63901
PH
290044. The "Exiscan patch" is now merged into the mainline Exim source.
2901
290245. Sometimes the final signoff response after QUIT could fail to get
2903 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2904 < 0 before doing a fflush(). This bug looks as though it goes back to the
2905 introduction of TLS in release 3.20, but "sometimes" must have been rare
2906 because the tests only now provoked it.
2907
a444213a
PH
290846. Reset the locale to "C" after calling embedded Perl, in case it was changed
2909 (this can affect the format of dates).
2910
0ec020ea
PH
291147. exim_tidydb, when checking for the continued existence of a message for
2912 which it has found a message-specific retry record, was not finding
2913 messages that were in split spool directories. Consequently, it was
2914 deleting retry records that should have stayed in existence.
2915
b1206957
PH
291648. Steve fixed some bugs in eximstats.
2917
291849. The SPA authentication driver was not abandoning authentication and moving
2919 on to the next authenticator when an expansion was forced to fail,
2920 contradicting the general specification for all authenticators. Instead it
2921 was generating a temporary error. It now behaves as specified.
2922
26dd5a95
PH
292350. The default ordering of permitted cipher suites for GnuTLS was pessimal
2924 (the order specifies the preference for clients). The order is now AES256,
2925 AES128, 3DES, ARCFOUR128.
2926
343b2385
PH
292751. Small patch to Sieve code - explicitly set From: when generating an
2928 autoreply.
2929
1c5466b9
PH
293052. Exim crashed if a remote delivery caused a very long error message to be
2931 recorded - for instance if somebody sent an entire SpamAssassin report back
2932 as a large number of 550 error lines. This bug was coincidentally fixed by
2933 increasing the size of one of Exim's internal buffers (big_buffer) that
2934 happened as part of the Exiscan merge. However, to be on the safe side, I
2935 have made the code more robust (and fixed the comments that describe what
2936 is going on).
2937
55ee9ee3
PH
293853. Now that there can be additional text after "Completed" in log lines (if
2939 the queue_time_overall log selector is set), a one-byte patch to exigrep
2940 was needed to allow it to recognize "Completed" as not the last thing in
2941 the line.
2942
d38f8232
PH
294354. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2944 patch that reportedly fixes this has been added. I am not expert enough to
2945 create a test for it. This is what the patch creator wrote:
2946
2947 "I found a little strange behaviour of ldap code when working with
2948 Windows 2003 AD Domain, where users was placed in more than one
2949 Organization Units. When I tried to give exim partial DN, the exit code
2950 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2951 But simultaneously result of request was absolutely normal ldap result,
2952 so I produce this patch..."
2953
3295e65b
PH
2954 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2955 REFERENCE, so I have modified the code to exclude the patch when that macro
2956 is not defined.
2957
7102e136
PH
295855. Some experimental protocols are using DNS PTR records for new purposes. The
2959 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2960 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2961 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2962 CAN-2005-0021
7102e136 2963
3ca0ba97
PH
296456. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2965
c2bcbe20
PH
296657. Double the size of the debug message buffer (to 2048) so that more of very
2967 long debug lines gets shown.
2968
18ce445d
PH
296958. The exicyclog utility now does better if the number of log files to keep
2970 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2971
1f5b4c3d
PH
297259. Two changes related to the smtp_active_hostname option:
2973
2974 (1) $smtp_active_hostname is now available as a variable.
2975 (2) The default for smtp_banner uses $smtp_active_hostname instead
2976 of $primary_hostname.
2977
b975ba52
PH
297860. The host_aton() function is supposed to be passed a string that is known
2979 to be a valid IP address. However, in the case of IPv6 addresses, it was
2980 not checking this. This is a hostage to fortune. Exim now panics and dies
2981 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2982 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2983 components; fortuitously, this particular loophole had already been fixed
2984 by change 4.50/55 above.
2985
2986 If there are any other similar loopholes, the new check in host_aton()
2987 itself should stop them being exploited. The report I received stated that
2988 data on the command line could provoke the exploit when Exim was running as
2989 exim, but did not say which command line option was involved. All I could
2990 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2991 running as the user.
ea3a6f44 2992 CAN-2005-0021
85b87bc2
PH
2993
299461. There was a buffer overflow vulnerability in the SPA authentication code
2995 (which came originally from the Samba project). I have added a test to the
2996 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2997 CAN-2005-0022
b975ba52 2998
17ffcae7
PH
299962. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3000 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3001
d95f9fdb
PH
300263. The daemon start-up calls getloadavg() while still root for those OS that
3003 need the first call to be done as root, but it missed one case: when
3004 deliver_queue_load_max is set with deliver_drop_privilege. This is
3005 necessary for the benefit of the queue runner, because there is no re-exec
3006 when deliver_drop_privilege is set.
3007
86b8287f
PH
300864. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3009 This has been fixed.
3010
60dc5e56
PH
301165. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3012 was in use, was not putting the data itself into the right store pool;
3013 consequently, it could be overwritten for a subsequent message in the same
3014 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3015 the caching.)
3016
533244af
PH
301766. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3018
a5a28604
PH
301967. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3020 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3021 the function were treating the return as a boolean value, which happened to
3022 work because 0=false and not-0=true, but is not correct code.
3023
7e634d24
PH
302468. The host_aton() function was not handling scoped IPv6 addresses (those
3025 with, for example, "%eth0" on the end) correctly.
3026
3e11c26b
PH
302769. Fixed some compiler warnings in acl.c for the bitmaps specified with
3028 negated items (that is, ~something) in unsigned ints. Some compilers
3029 apparently mutter when there is no cast.
3030
6729cf78
PH
303170. If an address verification called from an ACL failed, and did not produce a
3032 user-specific message (i.e. there was only a "system" message), nothing was
3033 put in $acl_verify_message. In this situation, it now puts the system
3034 message there.
3035
00f00ca5
PH
303671. Change 4.23/11 added synchronization checking at the start of an SMTP
3037 session; change 4.31/43 added the unwanted input to the log line - except
3038 that it did not do this in the start of session case. It now does.
3039
c9bdd01c
PH
304072. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3041 This is wrong and can cause the other end to generate a synchronization
3042 error if it is another Exim or anything else that does the synchronization
3043 check. A QUIT command is no longer sent after a timeout.
3044
d43194df
PH
304573. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3046 during host lookups.
3047
fe5b5d0b
PH
304874. The defer_ok option of callout verification was not working if it was used
3049 when verifying addresses in header lines, that is, for this case:
3050
3051 verify = header_sender/callout=defer_ok
3052
76a2d7ba
PH
305375. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3054 those file descriptors could be used for SMTP connections. If anything
3055 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3056 could be sent to the SMTP client, causing chaos. The daemon now opens
3057 stdin, stdout, and stderr to /dev/null when it puts itself into the
3058 background.
3059
306076. Arrange for output from Perl's "warn" command to be written to Exim's main
3061 log by default. The user can override this with suitable Perl magic.
3062
04f7d5b9
PH
306377. The use of log_message on a "discard" ACL verb, which is supposed to add to
3064 the log message when discard triggers, was not working for the DATA ACL or
3065 for the non-SMTP ACL.
3066
bc60667e
PH
306778. Error message wording change in sieve.c.
3068
bb6e88ff
PH
306979. If smtp_accept_max_per_host was set, the number of connections could be
3070 restricted to fewer than expected, because the daemon was trying to set up
3071 a new connection before checking whether the processes handling previous
3072 connections had finished. The check for completed processes is now done
3073 earlier. On busy systems, this bug wouldn't be noticed because something
3074 else would have woken the daemon, and it would have reaped the completed
3075 process earlier.
3076
1e70f85b
PH
307780. If a message was submitted locally by a user whose login name contained one
3078 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3079 It caused a spool format error. I have fixed the spool reading code. A
3080 related problem was that the "from" clause in the Received: line became
3081 illegal because of the space(s). It is now covered by ${quote_local_part.
3082
308381. Included the latest eximstats from Steve (adds average sizes to HTML Top
3084 tables).
3085
4e01f9d6
PH
308682. Updated OS/Makefile-AIX as per message from Mike Meredith.
3087
1ee1cef2
PH
308883. Patch from Sieve maintainer to fix unterminated string problem in
3089 "vacation" handling.
3090
6e2b4ccc
PH
309184. Some minor changes to the Linux configuration files to help with other
3092 OS variants using glibc.
3093
8e669ac1
PH
309485. One more patch for Sieve to update vacation handling to latest spec.
3095
495ae4b0 3096
bbe902f0
PH
3097----------------------------------------------------
3098See the note above about the 4.44 and 4.50 releases.
3099----------------------------------------------------
3100
3101
3102Exim version 4.44
3103-----------------
3104
3105 1. Change 4.43/35 introduced a bug that caused file counts to be
3106 incorrectly computed when quota_filecount was set in an appendfile
3107 transport
3108
3109 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3110 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3111 place.
3112
3113 3. Give more explanation in the error message when the command for a transport
3114 filter fails to execute.
3115
3116 4. There are several places where Exim runs a non-Exim command in a
3117 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3118 was being done only for the command run by the queryprogram router. It is
3119 now done for all such subprocesses. The other cases are: ${run, transport
3120 filters, and the commands run by the lmtp and pipe transports.
3121
3122 5. Some older OS have a limit of 256 on the maximum number of file
3123 descriptors. Exim was using setrlimit() to set 1000 as a large value
3124 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3125 systems. I've change it so that if it can't get 1000, it tries for 256.
3126
3127 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3128 was an oversight, and furthermore, ever since the addition of extra
3129 controls (e.g. 4.43/32), the checks on when to allow different forms of
3130 "control" were broken. There should now be diagnostics for all cases when a
3131 control that does not make sense is encountered.
3132
3133 7. $recipients is now available in the predata ACL (oversight).
3134
3135 8. Tidy the search cache before the fork to do a delivery from a message
3136 received from the command line. Otherwise the child will trigger a lookup
3137 failure and thereby defer the delivery if it tries to use (for example) a
3138 cached ldap connection that the parent has called unbind on.
3139
3140 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3141 of $address_data from the recipient verification was clobbered by the
3142 sender verification.
3143
314410. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3145 was its contents. (It was OK if the option was not defined at all.)
3146
314711. A "Completed" log line is now written for messages that are removed from
3148 the spool by the -Mrm option.
3149
315012. $host_address is now set to the target address during the checking of
3151 ignore_target_hosts.
3152
315313. When checking ignore_target_hosts for an ipliteral router, no host name was
3154 being passed; this would have caused $sender_host_name to have been used if
3155 matching the list had actually called for a host name (not very likely,
3156 since this list is usually IP addresses). A host name is now passed as
3157 "[x.x.x.x]".
3158
315914. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3160 code that specifies a non-restarting handler (typically sigaction() in
3161 modern systems) in an attempt to fix a rare and obscure crash bug.
3162
316315. Narrowed the window for a race in the daemon that could cause it to ignore
3164 SIGCHLD signals. This is not a major problem, because they are used only to
3165 wake it up if nothing else does.
3166
316716. A malformed maildirsize file could cause Exim to calculate negative values
3168 for the mailbox size or file count. Odd effects could occur as a result.
3169 The maildirsize information is now recalculated if the size or filecount
3170 end up negative.
3171
317217. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3173 support for a long time. Removed HAVE_SYS_VFS_H.
3174
ea3a6f44 317518. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3176
317719. Allow an empty sender to be matched against a lookup in an address list.
3178 Previously the only cases considered were a regular expression, or an
3179 empty pattern.
3180
318120. Exim went into a mad DNS lookup loop when doing a callout where the
3182 host was specified on the transport, if the DNS lookup yielded more than
3183 one IP address.
3184
ea3a6f44
NM
318521. The RFC2047 encoding function was originally intended for short strings
3186 such as real names; it was not keeping to the 75-character limit for
3187 encoded words that the RFC imposes. It now respects the limit, and
3188 generates multiple encoded words if necessary. To be on the safe side, I
3189 have increased the buffer size for the ${rfc2047: expansion operator from
3190 1024 to 2048 bytes.
bbe902f0 3191
ea3a6f44
NM
319222. Failure to deliver a bounce message always caused it to be frozen, even if
3193 there was an errors_to setting on the router. The errors_to setting is now
3194 respected.
bbe902f0
PH
3195
319623. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3197 canonical form (fully expanded) before being placed in
3198 $sender_host_address.
3199
320024. Updated eximstats to version 1.33
3201
ea3a6f44
NM
320225. Include certificate and key file names in error message when GnuTLS fails
3203 to set them up, because the GnuTLS error message doesn't include the name
3204 of the failing file when there is a problem reading it.
bbe902f0
PH
3205
320626. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3207 As per change 25.
bbe902f0 3208
ea3a6f44
NM
320927. Reset the locale to "C" after calling embedded Perl, in case it was changed
3210 (this can affect the format of dates).
bbe902f0 3211
ea3a6f44
NM
321228. exim_tidydb, when checking for the continued existence of a message for
3213 which it has found a message-specific retry record, was not finding
3214 messages that were in split spool directories. Consequently, it was
3215 deleting retry records that should have stayed in existence.
bbe902f0
PH
3216
321729. eximstats updated to version 1.35
3218 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3219 1.35 - bugfix such that pie charts by volume are generated correctly
3220
ea3a6f44
NM
322130. The SPA authentication driver was not abandoning authentication and moving
3222 on to the next authenticator when an expansion was forced to fail,
3223 contradicting the general specification for all authenticators. Instead it
3224 was generating a temporary error. It now behaves as specified.
bbe902f0 3225
ea3a6f44
NM
322631. The default ordering of permitted cipher suites for GnuTLS was pessimal
3227 (the order specifies the preference for clients). The order is now AES256,
3228 AES128, 3DES, ARCFOUR128.
bbe902f0 3229
ea3a6f44
NM
323031. Small patch to Sieve code - explicitly set From: when generating an
3231 autoreply.
bbe902f0 3232
ea3a6f44
NM
323332. Exim crashed if a remote delivery caused a very long error message to be
3234 recorded - for instance if somebody sent an entire SpamAssassin report back
3235 as a large number of 550 error lines. This bug was coincidentally fixed by
3236 increasing the size of one of Exim's internal buffers (big_buffer) that
3237 happened as part of the Exiscan merge. However, to be on the safe side, I
3238 have made the code more robust (and fixed the comments that describe what
3239 is going on).
bbe902f0 3240
ea3a6f44
NM
324133. Some experimental protocols are using DNS PTR records for new purposes. The
3242 keys for these records are domain names, not reversed IP addresses. The
3243 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3244 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3245 CAN-2005-0021
3246
ea3a6f44
NM
324734. The host_aton() function is supposed to be passed a string that is known
3248 to be a valid IP address. However, in the case of IPv6 addresses, it was
3249 not checking this. This is a hostage to fortune. Exim now panics and dies
3250 if the condition is not met. A case was found where this could be provoked
3251 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3252 components; fortuitously, this particular loophole had already been fixed
3253 by change 4.50/55 or 4.44/33 above.
3254
3255 If there are any other similar loopholes, the new check in host_aton()
3256 itself should stop them being exploited. The report I received stated that
3257 data on the command line could provoke the exploit when Exim was running as
3258 exim, but did not say which command line option was involved. All I could
3259 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3260 running as the user.
bbe902f0
PH
3261 CAN-2005-0021
3262
ea3a6f44
NM
326335. There was a buffer overflow vulnerability in the SPA authentication code
3264 (which came originally from the Samba project). I have added a test to the
3265 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3266 CAN-2005-0022
3267
ea3a6f44
NM
326836. The daemon start-up calls getloadavg() while still root for those OS that
3269 need the first call to be done as root, but it missed one case: when
3270 deliver_queue_load_max is set with deliver_drop_privilege. This is
3271 necessary for the benefit of the queue runner, because there is no re-exec
3272 when deliver_drop_privilege is set.
bbe902f0 3273
ea3a6f44
NM
327437. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3275 was in use, was not putting the data itself into the right store pool;
3276 consequently, it could be overwritten for a subsequent message in the same
3277 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3278 the caching.)
bbe902f0 3279
ea3a6f44
NM
328038. Sometimes the final signoff response after QUIT could fail to get
3281 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3282 < 0 before doing a fflush(). This bug looks as though it goes back to the
3283 introduction of TLS in release 3.20, but "sometimes" must have been rare
3284 because the tests only now provoked it.
bbe902f0
PH
3285
3286
495ae4b0
PH
3287Exim version 4.43
3288-----------------
3289
3290 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3291 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3292 Now it returns an integer. A number of calls were still expecting a T/F
3293 return. Fortuitously, in all cases, the tests worked in OK situations,
3294 which is the norm. However, things would have gone wrong on any write
3295 failures on the smtp file descriptor. This function is used when sending
3296 messages over SMTP and also when doing verify callouts.
3297
3298 2. When Exim is called to do synchronous delivery of a locally submitted
3299 message (the -odf or -odi options), it no longer closes stderr before doing
3300 the delivery.
3301
3302 3. Implemented the mua_wrapper option.
3303
3304 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3305
3306 5. Implemented the functions header_remove(), header_testname(),
3307 header_add_at_position(), and receive_remove_recipient(), and exported them
3308 to local_scan().
3309
3310 6. If an ACL "warn" statement specified the addition of headers, Exim already
3311 inserted X-ACL-Warn: at the start if there was no header name. However, it
3312 was not making this test for the second and subsequent header lines if
3313 there were newlines in the string. This meant that an invalid header could
3314 be inserted if Exim was badly configured.
3315
3316 7. Allow an ACL "warn" statement to add header lines at the start or after all
3317 the Received: headers, as well as at the end.
3318
3319 8. Added the rcpt_4xx retry error code.
3320
3321 9. Added postmaster_mailfrom=xxx to callout verification option.
3322
332310. Added mailfrom=xxxx to the callout verification option, for verify=
3324 header_sender only.
3325
332611. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3327 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3328
332912. Inserted some casts to stop certain compilers warning when using pointer
3330 differences as field lengths or precisions in printf-type calls (mostly
3331 affecting debugging statements).
3332
333313. Added optional readline() support for -be (dynamically loaded).
3334
333514. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3336 same clock tick as a message's arrival, so that its received time was the
3337 same as the "first fail" time on the retry record, and that message
3338 remained on the queue past the ultimate address timeout, every queue runner
3339 would try a delivery (because it was past the ultimate address timeout) but
3340 after another failure, the ultimate address timeout, which should have then
3341 bounced the address, did not kick in. This was a "< instead of <=" error;
3342 in most cases the first failure would have been in the next clock tick
3343 after the received time, and all would be well.
3344
334515. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3346 being recognized when the domain list was tested by the match_domain
3347 condition in an expansion string.
3348
334916. Added the ${str2b64: operator.
3350
335117. Exim was always calling setrlimit() to set a large limit for the number of
3352 processes, without checking whether the existing limit was already
3353 adequate. (It did check for the limit on file descriptors.) Furthermore,
3354 errors from getrlimit() and setrlimit() were being ignored. Now they are
3355 logged to the main and panic logs, but Exim does carry on, to try to do its
3356 job under whatever limits there are.
3357
335818. Imported PCRE 5.0.
3359
336019. Trivial typo in log message " temporarily refused connection" (the leading
3361 space).
3362
336320. If the log selector return_path_on_delivery was set and an address was
3364 redirected to /dev/null, the delivery process crashed because it assumed
3365 that a return path would always be set for a "successful" delivery. In this
3366 case, the whole delivery is bypassed as an optimization, and therefore no
3367 return path is set.
3368
336921. Internal re-arrangement: the function for sending a challenge and reading
3370 a response while authentication was assuming a zero-terminated challenge
3371 string. It's now changed to take a pointer and a length, to allow for
3372 binary data in such strings.
3373
337422. Added the cyrus_sasl authenticator (code supplied by MBM).
3375
337623. Exim was not respecting finduser_retries when seeking the login of the
3377 uid under which it was called; it was always trying 10 times. (The default
3378 setting of finduser_retries is zero.) Also, it was sleeping after the final
3379 failure, which is pointless.
3380
338124. Implemented tls_on_connect_ports.
3382
338325. Implemented acl_smtp_predata.
3384
338526. If the domain in control=submission is set empty, Exim assumes that the
3386 authenticated id is a complete email address when it generates From: or
3387 Sender: header lines.
3388
338927. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3390 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3391 chown and chgrp in /bin and hostname in /usr/bin.
3392
339328. Exim was keeping the "process log" file open after each use, just as it
3394 does for the main log. This opens the possibility of it remaining open for
3395 long periods when the USR1 signal hits a daemon. Occasional processlog
3396 errors were reported, that could have been caused by this. Anyway, it seems
3397 much more sensible not to leave this file open at all, so that is what now
3398 happens.
3399
340029. The long-running daemon process does not normally write to the log once it
3401 has entered its main loop, and it closes the log before doing so. This is
3402 so that log files can straightforwardly be renamed and moved. However,
3403 there are a couple of unusual error situations where the daemon does write
3404 log entries, and I had neglected to close the log afterwards.
3405
340630. The text of an SMTP error response that was received during a remote
3407 delivery was being truncated at 512 bytes. This is too short for some of
3408 the long messages that one sometimes sees. I've increased the limit to
3409 1024.
3410
341131. It is now possible to make retry rules that apply only when a message has a
3412 specific sender, in particular, an empty sender.
3413
341432. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3415 it possible to be selective about when SMTP synchronization is enforced.
3416
341733. Added "control = caseful_local_part" and "control = "caselower_local_part".
3418
341932. Implemented hosts_connection_nolog.
3420
342133. Added an ACL for QUIT.
3422
342334. Setting "delay_warning=" to disable warnings was not working; it gave a
3424 syntax error.
3425
342635. Added mailbox_size and mailbox_filecount to appendfile.