Fix wide character breakage in the rfc2047 coding
[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
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2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
aa097c4c
NM
6Exim version 4.75
7-----------------
8
9NM/01 Workround for PCRE version dependancy in version reporting
10 Bugzilla 1073
11
7f3d9eff
TF
12TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
13 This fixes portability to compilers other than gcc, notably
14 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
15
159f52d2
TF
16TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
17 makefiles for portability to HP-UX and POSIX correctness.
18
0cc9542a
PP
19PP/01 Permit LOOKUP_foo enabling on the make command-line.
20 Also via indented variable definition in the Makefile.
21 (Debugging by Oliver Heesakkers).
22
f7274286
PP
23PP/02 Restore caching of spamd results with expanded spamd_address.
24 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
25
7b797365
PP
26PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
27 Improves build reliability. Fix from: Frank Elsner
28
aa097c4c 29
8c07b69f
TF
30Exim version 4.74
31-----------------
32
33TF/01 Failure to get a lock on a hints database can have serious
34 consequences so log it to the panic log.
35
c0ea85ab
TF
36TF/02 Log LMTP confirmation messages in the same way as SMTP,
37 controlled using the smtp_confirmation log selector.
38
0761d44e
TF
39TF/03 Include the error message when we fail to unlink a spool file.
40
0a349494
PP
41DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
42 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
43 for maintaining out-of-tree patches for some time.
44
45PP/01 Bugzilla 139: Documentation and portability issues.
46 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
47 Handle per-OS dynamic-module compilation flags.
48
fea24b2e
PP
49PP/02 Let /dev/null have normal permissions.
50 The 4.73 fixes were a little too stringent and complained about the
51 permissions on /dev/null. Exempt it from some checks.
52 Reported by Andreas M. Kirchwitz.
53
6545de78
PP
54PP/03 Report version information for many libraries, including
55 Exim version information for dynamically loaded libraries. Created
56 version.h, now support a version extension string for distributors
57 who patch heavily. Dynamic module ABI change.
58
1670ef10
PP
59PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
60 privilege escalation vulnerability whereby the Exim run-time user
61 can cause root to append content of the attacker's choosing to
62 arbitrary files.
63
c0886197
PP
64PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
65 (Wolfgang Breyha)
66
b7487bce
PP
67PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
68 If dropping privileges for untrusted macros, we disabled normal logging
69 on the basis that it would fail; for the Exim run-time user, this is not
70 the case, and it resulted in successful deliveries going unlogged.
71 Fixed. Reported by Andreas Metzler.
72
8c07b69f 73
97fd1e48 74Exim version 4.73
ed7f7860 75-----------------
97fd1e48
PP
76
77PP/01 Date: & Message-Id: revert to normally being appended to a message,
78 only prepend for the Resent-* case. Fixes regression introduced in
79 Exim 4.70 by NM/22 for Bugzilla 607.
80
6901c596
PP
81PP/02 Include check_rfc2047_length in configure.default because we're seeing
82 increasing numbers of administrators be bitten by this.
83
a8c8d6b5
JJ
84JJ/01 Added DISABLE_DKIM and comment to src/EDITME
85
77bb000f
PP
86PP/03 Bugzilla 994: added openssl_options main configuration option.
87
a29e5231
PP
88PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
89
ec5a0394 90PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 91
55c75993
PP
92PP/06 Adjust NTLM authentication to handle SASL Initial Response.
93
453a6645 94PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
95 without a peer certificate, leading to a segfault because of an
96 assumption that peers always have certificates. Be a little more
453a6645
PP
97 paranoid. Problem reported by Martin Tscholak.
98
8544e77a
PP
99PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
100 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
101 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
102 CL also introduces -bmalware, various -d+acl logging additions and
103 more caution in buffer sizes.
8544e77a 104
83e029d5
PP
105PP/09 Implemented reverse_ip expansion operator.
106
ed7f7860
PP
107PP/10 Bugzilla 937: provide a "debug" ACL control.
108
7d9f747b
PP
109PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
110
4b2241d2
PP
111PP/12 Bugzilla 973: Implement --version.
112
10385c15
PP
113PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
114
dbc4b90d
PP
115PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
116
532be449
PP
117PP/15 Bugzilla 816: support multiple condition rules on Routers.
118
6a8de854 119PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
120 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
121 ignore trailing whitespace.
6a8de854 122
5dc43717
JJ
123JJ/02 prevent non-panic DKIM error from being sent to paniclog
124
125JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
126 "exim" to be used
55c75993 127
3346ab01
PP
128PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
129 Notification from Dr Andrew Aitchison.
130
491fab4c
PP
131PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
132 ExtendedDetectionInfo response format.
133 Notification from John Horne.
134
13eb9497
PP
135PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
136 compatible.
137
138PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
139 XSL and documented dependency on system catalogs, with examples of how
140 it normally works.
141
7f36d675
DW
142DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
143 access.
144
c1d94452
DW
145DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
146 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
147 configuration file which is writeable by the Exim user or group.
148
e2f5dc15
DW
149DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
150 of configuration files to cover files specified with the -C option if
151 they are going to be used with root privileges, not just the default
152 configuration file.
153
cd25e41d
DW
154DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
155 option (effectively making it always true).
156
261dc43e
DW
157DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
158 files to be used while preserving root privileges.
159
fa32850b
DW
160DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
161 that rogue child processes cannot use them.
162
79d4bc3d
PP
163PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
164 run-time user, instead of root.
165
2cfd3221
PP
166PP/28 Add WHITELIST_D_MACROS option to let some macros be overriden by the
167 Exim run-time user without dropping privileges.
168
fb08281f
DW
169DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
170 result string, instead of calling string_vformat() twice with the same
171 arguments.
3346ab01 172
74935b98
DW
173DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
174 for other users. Others should always drop root privileges if they use
175 -C on the command line, even for a whitelisted configure file.
176
90b6341f
DW
177DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
178
57730b52
ML
179NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
180
66581d1e 181
465e92cf
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182Exim version 4.72
183-----------------
184
453a6645
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185JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
186 $data_path, and $header_path variables; fixed documentation bugs and
187 typos
465e92cf 188
453a6645
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189JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
190 exipick to access non-standard spools, including the "frozen" queue
191 (Finput)
edae0343 192
9bd3e22c
NM
193NM/01 Bugzilla 965: Support mysql stored procedures.
194 Patch from Alain Williams
195
bb576ff7
NM
196NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
197
5a1a5845
NM
198NM/03 Bugzilla 955: Documentation fix for max_rcpts.
199 Patch from Andreas Metzler
200
981a9fad
NM
201NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
202 Patch from Kirill Miazine
203
7fc497ee
NM
204NM/05 Bugzilla 671: Added umask to procmail example.
205
1a41defa
JJ
206JJ/03 installed exipick 20100323.0, fixing doc bug
207
a466095c 208NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 209 directory. Notification and patch from Dan Rosenberg.
a466095c 210
94a6bd0b
NM
211TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
212
213TK/02 Improve log output when DKIM signing operation fails.
214
215MH/01 Treat the transport option dkim_domain as a colon separated
216 list, not as a single string, and sign the message with each element,
217 omitting multiple occurences of the same signer.
218
c1b141a8
NM
219NM/07 Null terminate DKIM strings, Null initialise DKIM variable
220 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 221
b26eacf1 222NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
223 Patch by Simon Arlott
224
179c5980 225PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 226 MBX locking. Notification from Dan Rosenberg.
179c5980 227
9bd3e22c 228
7c6d71af
NM
229Exim version 4.71
230-----------------
231
7d9f747b 232TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 233
f013fb92
NM
234NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
235
0eb8eedd
NM
236NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
237
663ee6d9
NM
238NM/03 Bugzilla 847: Enable DNSDB lookup by default.
239
177ebd9b
NM
240NM/04 Bugzilla 915: Flag broken perl installation during build.
241
7c6d71af 242
210f147e
NM
243Exim version 4.70
244-----------------
245
cdd3bb85 246TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 247 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
248
249TK/02 Write list of recipients to X-Envelope-Sender header when building
250 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 251 Hirsch).
cdd3bb85
TK
252
253TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
254 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 255 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
256
257TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
258 by Mark Daniel Reidel <mr@df.eu>.
259
210f147e
NM
260NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
261 When building exim an external PCRE library is now needed -
262 PCRE is a system library on the majority of modern systems.
263 See entry on PCRE_LIBS in EDITME file.
264
deafd5b3
NM
265NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
266 conversation. Added nologin parameter to request.
7d9f747b 267 Patch contributed by Kirill Miazine.
deafd5b3 268
089793a4
TF
269TF/01 Do not log submission mode rewrites if they do not change the address.
270
5f16ca82
TF
271TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
272
dae9d94e 273NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 274 log files in place. Contributed by Roberto Lima.
dae9d94e 275
7d9f747b 276NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 277
06864c44
TF
278TF/03 Bugzilla 615: When checking the local_parts router precondition
279 after a local_part_suffix or local_part_prefix option, Exim now
280 does not use the address's named list lookup cache, since this
281 contains cached lookups for the whole local part.
282
65a7d8c3 283NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 284 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 285
23510047 286TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 287
7d9f747b 288NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 289
7d8eec3a 290NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 291 Patch provided by Jan Srzednicki.
6c588e74 292
89dec7b6
TF
293TF/05 Leading white space used to be stripped from $spam_report which
294 wrecked the formatting. Now it is preserved.
5f28a6e8 295
a99de90c
TF
296TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
297 that they are available at delivery time.
298
e2803e40
TF
299TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
300
7199e1ee
TF
301TF/08 TLS error reporting now respects the incoming_interface and
302 incoming_port log selectors.
303
e276e04b
TF
304TF/09 Produce a more useful error message if an SMTP transport's hosts
305 setting expands to an empty string.
306
ce552449 307NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 308 Patch provided by Phil Pennock.
ce552449 309
e765a0f1 310NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 311 Patch provided by Richard Godbee.
e765a0f1 312
4f054c63 313NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 314 acl_smtp_notquit, added index entry.
4f054c63 315
7d9f747b
PP
316NM/09 Bugzilla 787: Potential buffer overflow in string_format.
317 Patch provided by Eugene Bujak.
24c929a2 318
7d9f747b
PP
319NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
320 accept(). Patch provided by Maxim Dounin.
cf73943b 321
b52bc06e 322NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 323 Patch provided by Phil Pennock.
b52bc06e 324
447de4b0
NM
325NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
326
4c69d561 327NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 328 Patch provided by Brad "anomie" Jorsch.
4c69d561 329
d5c39246 330NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 331 Patch provided by Dean Brooks.
9b989985 332
0b23848a
TK
333TK/05 Add native DKIM support (does not depend on external libraries).
334
8f3414a1 335NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 336 Patch provided by Graeme Fowler.
e2aacdfd 337
fb6f955d
NM
338NM/16 Bugzilla 851: Documentation example syntax fix.
339
340NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 341
7d9f747b
PP
342NM/18 Bugzilla 894: Fix issue with very long lines including comments in
343 lsearch.
dbb0bf41 344
7d9f747b
PP
345NM/19 Bugzilla 745: TLS version reporting.
346 Patch provided by Phil Pennock.
f3766eb5 347
7d9f747b
PP
348NM/20 Bugzilla 167: bool: condition support.
349 Patch provided by Phil Pennock.
36f12725 350
7d9f747b
PP
351NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
352 clients. Patch provided by Phil Pennock.
e6060e2c 353
7d9f747b
PP
354NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
355 Patch provided by Brad "anomie" Jorsch.
5eb690a1 356
7d9f747b
PP
357NM/23 Bugzilla 687: Fix misparses in eximstats.
358 Patch provided by Heiko Schlittermann.
d5c13d66 359
7d9f747b
PP
360NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
361 Patch provided by Heiko Schlittermann.
b2335c0b 362
7d9f747b 363NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 364 plus update to original patch.
f4cd9433 365
7d9f747b 366NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 367
7d9f747b
PP
368NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
369 Patch provided by David Brownlee.
8dc71ab3 370
7d9f747b 371NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 372
7d9f747b 373NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 374
7d9f747b 375NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 376
7d9f747b 377NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 378
17792b53 379NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 380 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 381
7d9f747b
PP
382NM/33 Bugzilla 898: Transport filter timeout fix.
383 Patch by Todd Rinaldo.
52383f8f 384
7d9f747b
PP
385NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
386 Patch by Serge Demonchaux.
5ca6d115 387
7d9f747b
PP
388NM/35 Bugzilla 39: Base64 decode bug fixes.
389 Patch by Jakob Hirsch.
baee9eee 390
7d9f747b 391NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 392
7d9f747b 393NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 394
7d9f747b 395NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 396
7d9f747b 397NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 398
deafd5b3 399
47db1125
NM
400Exim version 4.69
401-----------------
402
4b3504d0
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403TK/01 Add preliminary DKIM support. Currently requires a forked version of
404 ALT-N's libdkim that I have put here:
405 http://duncanthrax.net/exim-experimental/
406
407 Note to Michael Haardt: I had to rename some vars in sieve.c. They
408 were called 'true' and it seems that C99 defines that as a reserved
409 keyword to be used with 'bool' variable types. That means you could
410 not include C99-style headers which use bools without triggering
411 build errors in sieve.c.
412
81ea09ca
NM
413NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
414 as mailq or other aliases. Changed the --help handling significantly
415 to do whats expected. exim_usage() emits usage/help information.
416
f13cddcb
SC
417SC/01 Added the -bylocaldomain option to eximstats.
418
7d9f747b 419NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 420
7d9f747b 421NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 422
7d9f747b 423NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
424
425
eb4c0de6
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426Exim version 4.68
427-----------------
428
429PH/01 Another patch from the Sieve maintainer.
430
6a3bceb1
PH
431PH/02 When an IPv6 address is converted to a string for single-key lookup
432 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
433 dots are used instead of colons so that keys in lsearch files need not
434 contain colons. This was done some time before quoting was made available
435 in lsearch files. However, iplsearch files do require colons in IPv6 keys
436 (notated using the quote facility) so as to distinguish them from IPv4
437 keys. This meant that lookups for IP addresses in host lists did not work
438 for iplsearch lookups.
439
440 This has been fixed by arranging for IPv6 addresses to be expressed with
441 colons if the lookup type is iplsearch. This is not incompatible, because
442 previously such lookups could never work.
443
444 The situation is now rather anomolous, since one *can* have colons in
445 ordinary lsearch keys. However, making the change in all cases is
446 incompatible and would probably break a number of configurations.
447
2e30fa9d
TK
448TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
449 version.
450
0806a9c5
MH
451MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
452 conversion specification without a maximum field width, thereby enabling
453 a rogue spamd server to cause a buffer overflow. While nobody in their
454 right mind would setup Exim to query an untrusted spamd server, an
455 attacker that gains access to a server running spamd could potentially
456 exploit this vulnerability to run arbitrary code as the Exim user.
457
ae276964
TK
458TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
459 $primary_hostname instead of what libspf2 thinks the hosts name is.
460
0f2cbd1b
MH
461MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
462 a directory entry by the name of the lookup key. Previously, if a
463 symlink pointed to a non-existing file or a file in a directory that
464 Exim lacked permissions to read, a lookup for a key matching that
465 symlink would fail. Now it is enough that a matching directory entry
466 exists, symlink or not. (Bugzilla 503.)
467
2b85bce7
PH
468PH/03 The body_linecount and body_zerocount variables are now exported in the
469 local_scan API.
470
93655c46
PH
471PH/04 Added the $dnslist_matched variable.
472
6c512171
PH
473PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
474 This means they are set thereafter only if the connection becomes
475 encrypted.
476
477PH/06 Added the client_condition to authenticators so that some can be skipped
478 by clients under certain conditions.
479
aa6dc513
PH
480PH/07 The error message for a badly-placed control=no_multiline_responses left
481 "_responses" off the end of the name.
482
a96603a0
PH
483PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
484
8f240103
PH
485PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
486 (without spaces) instead of just copying the configuration text.
487
488PH/10 Added the /noupdate option to the ratelimit ACL condition.
489
d677b2f2
PH
490PH/11 Added $max_received_linelength.
491
d52120f2
PH
492PH/12 Added +ignore_defer and +include_defer to host lists.
493
64f2600a
PH
494PH/13 Installed PCRE version 7.2. This needed some changes because of the new
495 way in which PCRE > 7.0 is built.
496
8669f003
PH
497PH/14 Implemented queue_only_load_latch.
498
a4dc33a8
PH
499PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
500 MAIL command. The effect was to mangle the value on 64-bit systems.
501
d6a60c0f
PH
502PH/16 Another patch from the Sieve maintainer.
503
8f128379
PH
504PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
505
8932dffe
PH
506PH/18 If a system quota error occurred while trying to create the file for
507 a maildir delivery, the message "Mailbox is full" was not appended to the
508 bounce if the delivery eventually timed out. Change 4.67/27 below applied
509 only to a quota excession during the actual writing of the file.
d6a60c0f 510
ddea74fa 511PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
512 characters?) which causes problems in log lines. The DN values are now
513 passed through string_printing() before being added to log lines.
514
ddea74fa 515PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
516 and InterBase are left for another time.)
517
ddea74fa
PH
518PH/21 Added message_body_newlines option.
519
ce9f225c
PH
520PH/22 Guard against possible overflow in moan_check_errorcopy().
521
19897d52
PH
522PH/23 POSIX allows open() to be a macro; guard against that.
523
bc64a74d
PH
524PH/24 If the recipient of an error message contained an @ in the local part
525 (suitably quoted, of course), incorrect values were put in $domain and
526 $local_part during the evaluation of errors_copy.
527
eb4c0de6 528
b4ed4da0
PH
529Exim version 4.67
530-----------------
531
22ad45c9
MH
532MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
533 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
534 Jan Srzednicki.
535
b4ed4da0
PH
536PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
537 issue a MAIL command.
538
431b7361
PH
539PH/02 In an ACL statement such as
540
541 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
542
543 if a client was not listed at all, or was listed with a value other than
544 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
545 the condition was not true (as it should be), so access was not denied.
546 The bug was that the ! inversion was incorrectly passed on to the second
547 item. This has been fixed.
548
549PH/03 Added additional dnslists conditions == and =& which are different from
550 = and & when the dns lookup returns more than one IP address.
551
83da1223
PH
552PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
553 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
554
54fc8428
PH
555PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
556 FSYNC, which compiles an option called disable_fsync that allows for
557 bypassing fsync(). The documentation is heavily laced with warnings.
558
34c5e8dd
SC
559SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
560
bbe15da8
PH
561PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
562 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
563 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
564 including adding "make clean"; (3) Added -fPIC when compiling the test
565 dynamically loaded module, to get rid of a warning.
566
0e8a9471
MH
567MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
568 message fails, move_frozen_messages = true and ignore_bounce_errors_after
569 = 0s. The bug is otherwise harmless.
570
f0872424
PH
571PH/07 There was a bug in the dovecot authenticator such that the value of
572 $auth1 could be overwritten, and so not correctly preserved, after a
573 successful authentication. This usually meant that the value preserved by
574 the server_setid option was incorrect.
575
b01dd148
PH
576PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
577
6bf342e1
PH
578PH/09 Installed PCRE release 7.0.
579
273f34d0
PH
580PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
581 run for batched SMTP input. It is now run at the start of every message
582 in the batch. While fixing this I discovered that the process information
583 (output by running exiwhat) was not always getting set for -bs and -bS
584 input. This is fixed, and it now also says "batched" for BSMTP.
585
cf8b11a5
PH
586PH/11 Added control=no_pipelining.
587
41c7c167
PH
588PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
589 patch, slightly modified), and move the expansion of helo_data till after
590 the connection is made in the smtp transport (so it can use these
591 values).
592
9c57cbc0
PH
593PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
594
f3f065bb
PH
595PH/14 Added log_selector = +pid.
596
047bdd8c
PH
597PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
598
0ce9abe6
PH
599PH/16 Add ${if forany and ${if forall.
600
0e22dfd1
PH
601PH/17 Added dsn_from option to vary the From: line in DSNs.
602
4c590bd1
PH
603PH/18 Flush SMTP output before performing a callout, unless control =
604 no_callout_flush is set.
605
09945f1e
PH
606PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
607 was true (the default) a successful delivery failed to delete the retry
608 item, thus causing premature timeout of the address. The bug is now
609 fixed.
610
c51b8e75
PH
611PH/20 Added hosts_avoid_pipelining to the smtp transport.
612
e28326d8
PH
613PH/21 Long custom messages for fakedefer and fakereject are now split up
614 into multiline reponses in the same way that messages for "deny" and
615 other ACL rejections are.
616
75b1493f
PH
617PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
618 with slight modification.
619
7c5214ec
PH
620PH/23 Applied sieve patches from the maintainer "tracking the latest notify
621 draft, changing the syntax and factoring some duplicate code".
622
4311097e
PH
623PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
624 for deliveries of the second and subsequent messages over the same SMTP
625 connection.
626
29f89cad
PH
627PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
628 ${reduce, with only minor "tidies".
629
5e687460
SC
630SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
631
c3611384
PH
632PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
633 expansion side effects.
634
5a11a7b4
PH
635PH/27 When a message times out after an over-quota error from an Exim-imposed
636 quota, the bounce message says "mailbox is full". This message was not
637 being given when it was a system quota that was exceeded. It now should
638 be the same.
639
0e20aff9
MH
640MH/03 Made $recipients available in local_scan(). local_scan() already has
641 better access to the recipient list through recipients_list[], but
642 $recipients can be useful in postmaster-provided expansion strings.
643
ca86f471
PH
644PH/28 The $smtp_command and $smtp_command_argument variables were not correct
645 in the case of a MAIL command with additional options following the
646 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
647 were accidentally chopped off.
648
a14e5636
PH
649PH/29 SMTP synchronization checks are implemented when a command is read -
650 there is a check that no more input is waiting when there shouldn't be
651 any. However, for some commands, a delay in an ACL can mean that it is
652 some time before the response is written. In this time, more input might
653 arrive, invalidly. So now there are extra checks after an ACL has run for
654 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
655 pipelining has not been advertised.
656
ec95d1a6
PH
657PH/30 MH's patch to allow iscntrl() characters to be list separators.
658
42855d71
PH
659PH/31 Unlike :fail:, a custom message specified with :defer: was not being
660 returned in the SMTP response when smtp_return_error_details was false.
661 This has been fixed.
662
57c2c631
PH
663PH/32 Change the Dovecot authenticator to use read() and write() on the socket
664 instead of the C I/O that was originally supplied, because problems were
665 reported on Solaris.
666
58c01c94
PH
667PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
668 Exim which did not show up earlier: it was assuming that a call to
669 SSL_CTX_set_info_callback() might give an error value. In fact, there is
670 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
671 was a macro that became an assignment, so it seemed to work. This has
672 changed to a proper function call with a void return, hence the compile
673 error. Exim's code has been fixed.
674
dee5a20a
PH
675PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
676 cpus.
677
d2ee6114
PH
678PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
679
b2d5182b
PH
680PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
681
79749a79
PH
682PH/37 If a message is not accepted after it has had an id assigned (e.g.
683 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
684 "Completed" line in the log. When some messages of this type were
685 selected by exigrep, they were listed as "not completed". Others were
686 picked up by some special patterns. I have improved the selection
687 criteria to be more general.
79749a79 688
c456d9bb
PH
689PH/38 The host_find_failed option in the manualroute router can now be set
690 to "ignore", to completely ignore a host whose IP address cannot be
691 found. If all hosts are ignored, the behaviour is controlled by the new
692 host_all_ignored option.
693
cd9868ec
PH
694PH/39 In a list of hosts for manualroute, if one item (either because of multi-
695 homing or because of multiple MX records with /mx) generated more than
696 one IP address, and the following item turned out to be the local host,
697 all the secondary addresses of the first item were incorrectly removed
698 from the list, along with the local host and any following hosts (which
699 is what is supposed to happen).
700
ebeaf996
PH
701PH/40 When Exim receives a message, it writes the login name, uid, and gid of
702 whoever called Exim into the -H file. In the case of the daemon it was
703 behaving confusingly. When first started, it used values for whoever
704 started the daemon, but after a SIGHUP it used the Exim user (because it
705 calls itself on a restart). I have changed the code so that it now always
706 uses the Exim user.
707
2679d413
PH
708PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
709 message are rejected with the same error (e.g. no authentication or bad
710 sender address), and a DATA command is nevertheless sent (as can happen
711 with PIPELINING or a stupid MUA), the error message that was given to the
712 RCPT commands is included in the rejection of the DATA command. This is
713 intended to be helpful for MUAs that show only the final error to their
714 users.
715
84024b72
PH
716PH/42 Another patch from the Sieve maintainer.
717
8005d38e
SC
718SC/02 Eximstats - Differentiate between permanent and temporary rejects.
719 Eximstats - Fixed some broken HTML links and added missing column headers
720 (Jez Hancock).
721 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
722 columns for Rejects, Temp Rejects, Ham, and Spam rows.
723
3298c6c6
SC
724SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
725
a43a27c5
PH
726PH/43 Yet another patch from the Sieve maintainer.
727
58eb016e 728PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
729 the response to the final '.' that terminates a message, but only in the
730 case where the client has not sent further data following the '.'
731 (unfortunately, this is allowed). However, in many cases there won't be
732 any further data because there won't be any more messages to send. A call
733 to select() can be used: if it shows that the input is "ready", there is
734 either input waiting, or the socket has been closed. An attempt to read
735 the next input character can distinguish the two cases. Previously, Exim
58eb016e 736 would have sent an OK response which the client would never have see.
563b63fa
PH
737 This could lead to message repetition. This fix should cure that, at
738 least in a lot of common cases.
58eb016e 739
b43a74ea
PH
740PH/45 Do not advertise STARTTLS in response to HELP unless it would be
741 advertised in response to EHLO.
742
b4ed4da0 743
5dd1517f
PH
744Exim version 4.66
745-----------------
746
747PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
748 fixed by 4.65/MH/01 (is this a record?) are fixed:
749
750 (i) An empty string was always treated as zero by the numeric comparison
751 operators. This behaviour has been restored.
752
753 (ii) It is documented that the numeric comparison operators always treat
754 their arguments as decimal numbers. This was broken in that numbers
755 starting with 0 were being interpreted as octal.
756
757 While fixing these problems I realized that there was another issue that
758 hadn't been noticed. Values of message_size_limit (both the global option
759 and the transport option) were treated as octal if they started with 0.
760 The documentation was vague. These values are now always treated as
761 decimal, and I will make that clear in the documentation.
762
763
93cfa765
TK
764Exim version 4.65
765-----------------
766
767TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
768 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
769 versions. (#438)
770
d6066548
MH
771MH/01 Don't check that the operands of numeric comparison operators are
772 integers when their expansion is in "skipping" mode (fixes bug
773 introduced by 4.64-PH/07).
774
4362ff0d
PH
775PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
776 child addresses, Exim now panics and dies. Previously, because the count
777 is held in a short int, deliveries were likely to be lost. As such a
778 large number of recipients for a single message is ridiculous
779 (performance will be very, very poor), I have chosen to impose a limit
780 rather than extend the field.
781
93cfa765 782
944e9e9c
TF
783Exim version 4.64
784-----------------
aa41d2de 785
21d74bd9
TK
786TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
787 leftover -K file (the existence of which was triggered by #402).
788 While we were at it, introduced process PID as part of the -K
789 filename. This should rule out race conditions when creating
790 these files.
791
792TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
793 processing considerably. Previous code took too long for large mails,
794 triggering a timeout which in turn triggers #401.
795
796TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
797 in the DK code in transports.c. sendfile() is not really portable,
798 hence the _LINUX specificness.
944e9e9c
TF
799
800TF/01 In the add_headers option to the mail command in an Exim filter,
801 there was a bug that Exim would claim a syntax error in any
802 header after the first one which had an odd number of characters
803 in the field name.
804
2b1c6e3a
PH
805PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
806 callout verification, Exim cached a "reject" for the entire domain. This
807 is correct for most verifications, but it is not correct for a recipient
808 verification with use_sender or use_postmaster set, because in that case
809 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
810 case of MAIL FROM:<> rejection from other early rejections (e.g.
811 rejection of HELO). When verifying a recipient using a non-null MAIL
812 address, the cache is ignored if it shows MAIL FROM:<> rejection.
813 Whatever the result of the callout, the value of the domain cache is
814 left unchanged (for any other kind of callout, getting as far as trying
815 RCPT means that the domain itself is ok).
816
1f872c80
PH
817PH/02 Tidied a number of unused variable and signed/unsigned warnings that
818 gcc 4.1.1 threw up.
819
820PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
821 manifest itself as EPIPE rather than ECONNECT. When tidying away a
822 session, the daemon ignores ECONNECT errors and logs others; it now
823 ignores EPIPE as well.
824
d203e649
PH
825PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
826 (quoted-printable decoding).
827
cc2ed8f7 828PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 829 later the small subsequent patch to fix an introduced bug.
f951fd57 830
ddfcd446
PH
831PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
832
d45b1de8
PH
833PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
834
835PH/08 An error is now given if message_size_limit is specified negative.
836
38a0a95f 837PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 838 to be given (somewhat) arbitrary names.
38a0a95f 839
a2405d83
JJ
840JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
841 in 4.64-PH/09.
842
843JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
844 miscellaneous code fixes
845
6ea85e9a
PH
846PH/10 Added the log_reject_target ACL modifier to specify where to log
847 rejections.
848
26da7e20
PH
849PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
850 hostname. This is wrong, because it relates to the incoming message (and
851 probably the interface on which it is arriving) and not to the outgoing
852 callout (which could be using a different interface). This has been
853 changed to use the value of the helo_data option from the smtp transport
854 instead - this is what is used when a message is actually being sent. If
855 there is no remote transport (possible with a router that sets up host
856 addresses), $smtp_active_hostname is used.
6ea85e9a 857
14aa5a05 858PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 859 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
860 (a) The code assumed that strncpy() returns a negative number on buffer
861 overflow, which isn't the case. Replaced with Exim's string_format()
862 function.
863 (b) There were several signed/unsigned issues. I just did the minimum
864 hacking in of casts. There is scope for a larger refactoring.
865 (c) The code used strcasecmp() which is not a standard C function.
866 Replaced with Exim's strcmpic() function.
867 (d) The code set only $1; it now sets $auth1 as well.
868 (e) A simple test gave the error "authentication client didn't specify
869 service in request". It would seem that Dovecot has changed its
870 interface. Fortunately there's a specification; I followed it and
871 changed what the client sends and it appears to be working now.
872
ff75a1f7
PH
873PH/13 Added $message_headers_raw to provide the headers without RFC 2047
874 decoding.
875
e6f6568e
PH
876PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
877 address A is aliased to B and C, where B exists and C does not. Without
878 -v the output is "A verified" because verification stops after a
879 successful redirection if more than one address is generated. However,
880 with -v the child addresses are also verified. Exim was outputting "A
881 failed to verify" and then showing the successful verification for C,
882 with its parentage. It now outputs "B failed to verify", showing B's
883 parentage before showing the successful verification of C.
884
d6f6e0dc
PH
885PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
886 look up a TXT record in a specific list after matching in a combined
887 list.
888
322050c2
PH
889PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
890 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
891 they consult the DNS. I had assumed they would set it the way they
892 wanted; and indeed my experiments on Linux seem to show that in some
893 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
894 To be on the safe side, however, I have now made the interface to
895 host_find_byname() similar to host_find_bydns(), with an argument
896 containing the DNS resolver options. The host_find_byname() function now
897 sets these options at its start, just as host_find_bydns() does. The smtp
898 transport options dns_qualify_single and dns_search_parents are passed to
899 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
900 of host_find_byname() use the default settings of RES_DEFNAMES
901 (qualify_single) but not RES_DNSRCH (search_parents).
902
08955dd3
PH
903PH/17 Applied (a modified version of) Nico Erfurth's patch to make
904 spool_read_header() do less string testing, by means of a preliminary
905 switch on the second character of optional "-foo" lines. (This is
906 overdue, caused by the large number of possibilities that now exist.
907 Originally there were few.) While I was there, I also converted the
908 str(n)cmp tests so they don't re-test the leading "-" and the first
909 character, in the hope this might squeeze out yet more improvement.
910
1eccaa59
PH
911PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
912 flag allowing group syntax was set by the header_syntax check but not
913 turned off, possible causing trouble later; (2) The flag was not being
914 set at all for the header_verify test, causing "group"-style headers to
915 be rejected. I have now set it in this case, and also caused header_
916 verify to ignore an empty address taken from a group. While doing this, I
917 came across some other cases where the code for allowing group syntax
918 while scanning a header line wasn't quite right (mostly, not resetting
919 the flag correctly in the right place). These bugs could have caused
920 trouble for malformed header lines. I hope it is now all correct.
921
602e59e5
PH
922PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
923 with the "reply" argument non-NULL. The code, however (which originally
924 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
925 but it didn't always do it. This confused somebody who was copying the
926 code for some other use. I have removed all the tests.
927
411ef850
PH
928PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
929 feature that was used to support insecure browsers during the U.S. crypto
930 embargo. It requires special client support, and Exim is probably the
931 only MTA that supported it -- and would never use it because real RSA is
932 always available. This code has been removed, because it had the bad
933 effect of slowing Exim down by computing (never used) parameters for the
934 RSA_EXPORT functionality.
935
7befa435
PH
936PH/21 On the advice of Timo Sirainen, added a check to the dovecot
937 authenticator to fail if there's a tab character in the incoming data
938 (there should never be unless someone is messing about, as it's supposed
939 to be base64-encoded). Also added, on Timo's advice, the "secured" option
940 if the connection is using TLS or if the remote IP is the same as the
941 local IP, and the "valid-client-cert option" if a client certificate has
942 been verified.
943
48da4259 944PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
945 authenticators. This can be used for authorization after authentication
946 succeeds. (In the case of plaintext, it servers for both authentication
947 and authorization.)
948
48da4259
PH
949PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
950 if any retry times were supplied.
951
d1d5595c
PH
952PH/24 Exim crashed if verify=helo was activated during an incoming -bs
953 connection, where there is no client IP address to check. In this
954 situation, the verify now always succeeds.
955
0ef732d9
PH
956PH/25 Applied John Jetmore's -Mset patch.
957
328895cc
PH
958PH/26 Added -bem to be like -Mset, but loading a message from a file.
959
fd700877
PH
960PH/27 In a string expansion for a processed (not raw) header when multiple
961 headers of the same name were present, leading whitespace was being
962 removed from all of them, but trailing whitespace was being removed only
963 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
964 before concatenation. Completely empty headers in a concatenation (as
965 before) are ignored.
fd700877 966
8dce1a6f
PH
967PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
968 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
969
17af4a17
PH
970PH/29 [Removed. This was a change that I later backed out, and forgot to
971 correct the ChangeLog entry (that I had efficiently created) before
972 committing the later change.]
f6c332bd
PH
973
974PH/30 Exim was sometimes attempting to deliver messages that had suffered
975 address errors (4xx response to RCPT) over the same connection as other
976 messages routed to the same hosts. Such deliveries are always "forced",
977 so retry times are not inspected. This resulted in far too many retries
978 for the affected addresses. The effect occurred only when there were more
979 hosts than the hosts_max_try setting in the smtp transport when it had
980 the 4xx errors. Those hosts that it had tried were not added to the list
981 of hosts for which the message was waiting, so if all were tried, there
982 was no problem. Two fixes have been applied:
983
984 (i) If there are any address or message errors in an SMTP delivery, none
985 of the hosts (tried or untried) are now added to the list of hosts
986 for which the message is waiting, so the message should not be a
987 candidate for sending over the same connection that was used for a
988 successful delivery of some other message. This seems entirely
989 reasonable: after all the message is NOT "waiting for some host".
990 This is so "obvious" that I'm not sure why it wasn't done
991 previously. Hope I haven't missed anything, but it can't do any
992 harm, as the worst effect is to miss an optimization.
993
994 (ii) If, despite (i), such a delivery is accidentally attempted, the
995 routing retry time is respected, so at least it doesn't keep
996 hammering the server.
997
c1114884
PH
998PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
999 in ${readsocket because some servers need this prod.
1000
7a0743eb
PH
1001PH/32 Added some extra debug output when updating a wait-xxx database.
1002
0d85fa3f
PH
1003PH/33 The hint "could be header name not terminated by colon", which has been
1004 given for certain expansion errors for a long time, was not being given
1005 for the ${if def:h_colon_omitted{... case.
1006
1bf43b78
PH
1007PH/34 The spec says: "With one important exception, whenever a domain list is
1008 being scanned, $domain contains the subject domain." There was at least
1009 one case where this was not true.
1010
520de300
PH
1011PH/35 The error "getsockname() failed: connection reset by peer" was being
1012 written to the panic log as well as the main log, but it isn't really
1013 panic-worthy as it just means the connection died rather early on. I have
1014 removed the panic log writing for the ECONNRESET error when getsockname()
1015 fails.
1016
48c7f9e2
PH
1017PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1018 runs only) independently of the message's sender address. This meant
1019 that, if the 4xx error was in fact related to the sender, a different
1020 message to the same recipient with a different sender could confuse
1021 things. In particualar, this can happen when sending to a greylisting
1022 server, but other circumstances could also provoke similar problems.
1023 I have changed the default so that the retry time for these errors is now
1024 based a combination of the sender and recipient addresses. This change
1025 can be overridden by setting address_retry_include_sender=false in the
1026 smtp transport.
1027
99ea1c86
PH
1028PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1029 remote server are returned as part of bounce messages. This was not
1030 happening for LMTP over a pipe (the lmtp transport), but now it is the
1031 same for both kinds of LMTP.
1032
a2042e78
PH
1033PH/38 Despite being documented as not happening, Exim was rewriting addresses
1034 in header lines that were in fact CNAMEs. This is no longer the case.
1035
4fbcfc2e
PH
1036PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1037 and queue runs started by the daemon processed all messages. This has
1038 been fixed so that -R and -S can now usefully be given with -q<time>.
1039
aa41d2de
PH
1040PH/40 Import PCRE release 6.7 (fixes some bugs).
1041
af561417
PH
1042PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1043
3cc66b45
PH
1044PH/42 Give an error if -q is specified more than once.
1045
194cc0e4
PH
1046PH/43 Renamed the variables $interface_address and $interface_port as
1047 $received_ip_address and $received_port, to make it clear that these
1048 values apply to message reception, and not to the outgoing interface when
1049 a message is delivered. (The old names remain recognized, of course.)
1050
a401ddaa
PH
1051PH/44 There was no timeout on the connect() call when using a Unix domain
1052 socket in the ${readsocket expansion. There now is.
1053
4e88a19f
PH
1054PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1055 be meaningful with "accept".
1056
d7d7b289
SC
1057SC/01 Eximstats V1.43
1058 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1059
1060SC/02 Eximstats V1.44
1061 Use a glob alias rather than an array ref in the generated
1062 parser. This improves both readability and performance.
1063
1064SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1065 Collect SpamAssassin and rejection statistics.
1066 Don't display local sender or destination tables unless
1067 there is data to show.
1068 Added average volumes into the top table text output.
1069
1070SC/04 Eximstats V1.46
1071 Collect data on the number of addresses (recipients)
1072 as well as the number of messages.
1073
1074SC/05 Eximstats V1.47
1075 Added 'Message too big' to the list of mail rejection
1076 reasons (thanks to Marco Gaiarin).
1077
1078SC/06 Eximstats V1.48
1079 Mainlog lines which have GMT offsets and are too short to
1080 have a flag are now skipped.
1081
1082SC/07 Eximstats V1.49 (Alain Williams)
1083 Added the -emptyok flag.
1084
1085SC/08 Eximstats V1.50
1086 Fixes for obtaining the IP address from reject messages.
1087
0ea2a468
JJ
1088JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1089 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1090 whitesspace changes from 4.64-PH/27
1091
1092JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1093 match 4.64-PH/13
1094
1095JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1096 are found, allow negative numbers in numeric criteria)
1097
1098JJ/06 exipick.20061117.2, added new $message_body_missing variable
1099
1100JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1101 to match changes made in 4.64-PH/43
1102
8a10f5a4
PH
1103PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1104
30e18802
PH
1105PH/47 Put in an explicit test for a DNS lookup of an address record where the
1106 "domain" is actually an IP address, and force a failure. This locks out
1107 those revolvers/nameservers that support "A-for-A" lookups, in
1108 contravention of the specifications.
1109
55728a4f
PH
1110PH/48 When a host name was looked up from an IP address, and the subsequent
1111 forward lookup of the name timed out, the host name was left in
1112 $sender_host_name, contrary to the specification.
d7d7b289 1113
d7837193
PH
1114PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1115 restricted to single-key lookups, Exim was not diagnosing an error if
1116 * or *@ was used with a query-style lookup.
1117
87054a31
PH
1118PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1119
ea2c01d2
MH
1120MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1121 long ago, but noone interested enough thought of it. Let's just say that
1122 the "1.1" means that there are some new functions that weren't there at
1123 some point in the past.
1124
e4fa6968
PH
1125PH/51 Error processing for expansion failure of helo_data from an smtp
1126 transport during callout processing was broken.
1127
56f5d9bd
PH
1128PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1129 tested/used via the -bh/-bhc/-bs options.
1130
922e1c28
PH
1131PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1132 bug, fixed in subsequent PCRE releases).
1133
21eb6e72
PH
1134PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1135 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1136
a0540757
PH
1137PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1138
944e9e9c 1139
478be7b0
SC
1140Exim version 4.63
1141-----------------
1142
1143SC/01 Use a glob alias rather than an array ref in eximstats generated
1144 parser. This improves both readability and performance.
1145
1146SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1147 Don't display local sender or destination tables in eximstats unless
1148 there is data to show.
1149 Added average volumes into the eximstats top table text output.
1150
1151SC/03 Collect data on the number of addresses (recipients) as well
1152 as the number of messages in eximstats.
1153
2b965a65
TF
1154TF/01 Correct an error in the documentation for the redirect router. Exim
1155 does (usually) call initgroups() when daemonizing.
478be7b0 1156
45b91596
PH
1157TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1158 with consistent privilege compared to when running as a daemon.
478be7b0 1159
c59f5781
TF
1160TF/03 Note in the spec that $authenticated_id is not set for local
1161 submissions from trusted users.
1162
90fc3069
TF
1163TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1164 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1165
6083aca0
TF
1166TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1167 by adding some example configuration directives to the default
1168 configuration file. A little bit of work is required to uncomment the
1169 directives and define how usernames and passwords are checked, but
1170 there is now a framework to start from.
1171
765b530f
PH
1172PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1173 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1174 without this. I don't know how relevant this is to other LDAP libraries.
1175
4e167a8c
PH
1176PH/02 Add the verb name to the "unknown ACL verb" error.
1177
4608d683
PH
1178PH/03 Magnus Holmgren's patch for filter_prepend_home.
1179
b8dc3e4a
PH
1180PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1181
5418e93b
PH
1182PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1183 directory not expanded when it should be if an expanded home directory
1184 was set for the address (which is overridden by the transport).
1185
b4a9bda2
PH
1186PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1187 libradius.
1188
45b91596
PH
1189PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1190 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1191 because it is too late at that time, and has no effect.
1192
5547e2c5
PH
1193PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1194 security issue with \' (bugzilla #107). I could not use the
1195 PQescapeStringConn() function, because it needs a PGconn value as one of
1196 its arguments.
1197
dbcef0ea
PH
1198PH/08 When testing addresses using -bt, indicate those final addresses that
1199 are duplicates that would not cause an additional delivery. At least one
1200 person was confused, thinking that -bt output corresponded to deliveries.
1201 (Suppressing duplicates isn't a good idea as you lose the information
1202 about possibly different redirections that led to the duplicates.)
1203
25257489
PH
1204PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1205 systems where poll() doesn't work, in particular OS X.
1206
c816d124
PH
1207PH/10 Added more information to debugging output for retry time not reached.
1208
a9ccd69a
PH
1209PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1210 operations in malware.c.
1211
75fa1910
PH
1212PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1213 signatures.
1214
a7d7aa58
PH
1215PH/13 If write_rejectlog was set false when logging was sent to syslog with
1216 syslog_duplication set false, log lines that would normally be written
1217 both the the main log and to the reject log were not written to syslog at
1218 all.
1219
42119b09
PH
1220PH/14 In the default configuration, change the use of "message" in ACL warn
1221 statements to "add_header".
1222
41609df5
PH
1223PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1224 not followed by a command (e.g. "seen endif").
1225
a5bd321b
PH
1226PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1227 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1228 latter.
1229
e85a7ad5 1230PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1231 so that it is now:
1232
e85a7ad5
PH
1233 ${if or { \
1234 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1235 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1236 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1237 }{no}{yes}}
1238
e85a7ad5
PH
1239 The Auto-Submitted: and various List- headers are standardised, whereas I
1240 don't think Precedence: ever was.
5dff5817 1241
d8fe1c03
PH
1242PH/18 Refactored debugging code in route_finduser() to show more information,
1243 in particular, the error code if getpwnam() issues one.
1244
16282d2b
PH
1245PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1246 This is apparently needed in addition to the PH/07 change above to avoid
1247 any possible encoding problems.
1248
35d40a98
PH
1249PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1250 but not after initializing Perl.
1251
034d99ab
PH
1252PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1253 output them only if debugging. By default they are written stderr,
1254 apparently, which is not desirable.
1255
6ec97b1b
PH
1256PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1257 queries.
1258
e22ca4ac
JJ
1259JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1260 --not options
1261
1262JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1263
33d73e3b
PH
1264PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1265 authenticated or an ident call has been made. Suppress the default
1266 values for $authenticated_id and $authenticated_sender (but permit -oMai
1267 and -oMas) when testing with -bh.
1268
9ecb03f3
PH
1269PH/24 Re-jigged the order of the tests in the default configuration so that the
1270 tests for valid domains and recipients precede the DNS black list and CSA
1271 tests, on the grounds that those ones are more expensive.
1272
084efe8d
PH
1273PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1274 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1275 This bug exists in every version of Exim that I still have, right back to
1276 0.12.
1277
366fc9f0
PH
1278PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1279 However, an attempt to turn on case-sensitivity in a regex key by
1280 including (?-i) didn't work because the subject string was already
1281 lowercased, and the effects were non-intuitive. It turns out that a
1282 one-line patch can be used to allow (?-i) to work as expected.
1283
c59f5781 1284
c887c79e
TF
1285Exim version 4.62
1286-----------------
1287
1288TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1289 other effects) broke the use of negated acl sub-conditions.
1290
1cce3af8
PH
1291PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1292 patch).
1293
afb3eaaf
PH
1294PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1295 "Deny" causes Exim to reject the incoming connection with a 554 error.
1296 Unfortunately, if there is a major crisis, such as a disk failure,
1297 tcp-wrappers gives "deny", whereas what one would like would be some
1298 kind of temporary error. A kludge has been added to help with this.
1299 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1300 554 error is used if errno is still zero or contains ENOENT (which occurs
1301 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1302 451 error is used.
1303
e173618b
PH
1304PH/03 Add -lutil to the default FreeBSD LIBS setting.
1305
dd16e114
PH
1306PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1307 errors. Otherwise a message that provokes a temporary error (when other
1308 messages do not) can cause a whole host to time out.
1309
f7fd3850
PH
1310PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1311 addresses were routed directly to files or pipes from a redirect router.
1312 File deliveries just didn't batch; pipe deliveries might have suffered
1313 odd errors.
1314
d87df92c
PH
1315PH/06 A failure to get a lock for a hints database would erroneously always say
1316 "Failed to get write lock", even when it was really a read lock.
1317
7e9f683d
PH
1318PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1319 of 0600. This has been changed to use the value of the lockfile_mode
1320 option (which defaults to 0600).
1321
bfad5236
PH
1322PH/08 Applied small patch from the Sieve maintainer.
1323
01c490df
PH
1324PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1325 folder from quota calculations, a direct delivery into this folder messed
1326 up the contents of the maildirsize file. This was because the regex was
1327 used only to exclude .Trash (or whatever) when the size of the mailbox
1328 was calculated. There was no check that a delivery was happening into an
1329 excluded directory. This bug has been fixed by ignoring all quota
1330 processing for deliveries into excluded directories.
1331
d6629cdc
PH
1332PH/10 Added the maildirfolder_create_regex option to appendfile.
1333
1cce3af8 1334
214e2000
PH
1335Exim version 4.61
1336-----------------
1337
1338PH/01 The code for finding all the local interface addresses on a FreeBSD
1339 system running IPv6 was broken. This may well have applied to all BSD
1340 systems, as well as to others that have similar system calls. The broken
1341 code found IPv4 interfaces correctly, but gave incorrect values for the
1342 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1343 that it would not match correctly against @[] and not recognize the IPv6
1344 addresses as local.
1345
f9daeae0
PH
1346PH/02 The ipliteral router was not recognizing addresses of the form user@
1347 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1348
7e66e54d
PH
1349PH/03 Added disable_ipv6.
1350
c8ea1597
PH
1351PH/04 Changed $reply_address to use the raw form of the headers instead of the
1352 decoded form, because it is most often used to construct To: headers
1353 lines in autoreplies, and the decoded form may well be syntactically
1354 invalid. However, $reply_address has leading white space removed, and all
1355 newlines turned into spaces so that the autoreply transport does not
1356 grumble.
1357
911f6fde
PH
1358PH/05 If group was specified without a user on a router, and no group or user
1359 was specified on a transport, the group from the router was ignored.
1360
47ca6d6c
PH
1361PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1362 for visible compile-time settings that can be used to change these
1363 numbers, for those that want even more. Backwards compatibility with old
1364 spool files has been maintained. However, going back to a previous Exim
1365 release will lost any variables that are in spool files.
1366
ed0e9820
PH
1367PH/07 Two small changes when running in the test harness: increase delay when
1368 passing a TCP/IP connection to a new process, in case the original
1369 process has to generate a bounce, and remove special handling of
1370 127.0.0.2 (sic), which is no longer necessary.
1371
eff37e47
PH
1372PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1373 be the same on different OS.
1374
1921d2ea
PH
1375PH/09 Moved a debug statement in filter processing to avoid a race problem when
1376 testing.
1377
b3f69ca8
JJ
1378JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1379 whether --show-vars was specified or not
1380
1381JJ/02 exipick: Added support for new ACL variable spool format introduced
1382 in 4.61-PH/06
1383
424a1c63
PH
1384PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1385 syntactically invalid From: or Reply-to: line, and a filter used this to
1386 generate an autoreply, and therefore failed to obtain an address for the
1387 autoreply, Exim could try to deliver to a non-existent relative file
1388 name, causing unrelated and misleading errors. What now happens is that
1389 it logs this as a hard delivery error, but does not attempt to create a
1390 bounce message.
1391
7a100415
PH
1392PH/11 The exinext utility has a -C option for testing purposes, but although
1393 the given file was scanned by exinext itself; it wasn't being passed on
1394 when Exim was called.
1395
19b9dc85
PH
1396PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1397 an end-of-file indication when reading a command response.
1398
309bd837
PH
1399PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1400 compiled. In many other places in Exim, IPv6 addresses are always
1401 recognized, so I have changed this. It also means that IPv4 domain
1402 literals of the form [IPV4:n.n.n.n] are now always recognized.
1403
59e82a2a
PH
1404PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1405 used if the router is not running as root, for example, when verifying at
1406 ACL time, or when using -bh. The debugging output from this situation was
1407 non-existent - all you got was a failure to exec. I have made two
1408 changes:
1409
1410 (a) Failures to set uid/gid, the current directory, or a process leader
1411 in a subprocess such as that created by queryprogram now generate
1412 suitable debugging ouput when -d is set.
1413
1414 (b) The queryprogram router detects when it is not running as root,
1415 outputs suitable debugging information if -d is set, and then runs
1416 the subprocess without attempting to change uid/gid.
1417
9edc04ce
PH
1418PH/15 Minor change to Makefile for building test_host (undocumented testing
1419 feature).
1420
1349e1e5
PH
1421PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1422 additional section of a DNS packet that returns MX or SRV records.
1423 Instead, it always explicitly searches for A/AAAA records. This avoids
1424 major problems that occur when a DNS server includes only records of one
1425 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1426 fixed another bug: if SRV records were looked up and the corresponding
1427 address records were *not* found in the additional section, the port
1428 values from the SRV records were lost.
1429
ea49d0e1
PH
1430PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1431 using the correct key (the original address) when searching the retry
1432 rules in order to find which one to use for generating the retry hint.
1433
064a94c9
PH
1434PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1435 adding the default one. Similarly, if it contains a Reply-To: header, the
1436 errors_reply_to option, if set, is not used.
1437
727071f8
PH
1438PH/19 When calculating a retry time, Exim used to measure the "time since
1439 failure" by looking at the "first failed" field in the retry record. Now
1440 it does not use this if it is later than than the arrival time of the
1441 message. Instead it uses the arrival time. This makes for better
1442 behaviour in cases where some deliveries succeed, thus re-setting the
1443 "first failed" field. An example is a quota failure for a huge message
1444 when small messages continue to be delivered. Without this change, the
1445 "time since failure" will always be short, possible causing more frequent
1446 delivery attempts for the huge message than are intended.
dd16e114 1447 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1448
f78eb7c6
PH
1449PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1450 $1, $2, $3) because the numerical variables can be reset during some
1451 expansion items (e.g. "match"), thereby losing the authentication data.
1452
21c28500
PH
1453PH/21 Make -bV show the size of off_t variables so that the test suite can
1454 decide whether to run tests for quotas > 2G.
1455
1456PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1457 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1458 filecount value is greater than 2G or if a quota value is greater than 2G
1459 on a system where the size of off_t is not greater than 4, a panic error
1460 is given.
1461
1688f43b
PH
1462PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1463 never match. The debug and -bh output now contains an explicit error
1464 message indicating a malformed IPv4 address or mask.
1465
1466PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1467 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1468 PH/23 above applies.
1469
9675b384
PH
1470PH/25 Do not write to syslog when running in the test harness. The only
1471 occasion when this arises is a failure to open the main or panic logs
1472 (for which there is an explicit test).
1473
6a3f1455
PH
1474PH/26 Added the /no_tell option to "control=freeze".
1475
dac79d3e
PH
1476PH/27 If a host name lookup failed very early in a connection, for example, if
1477 the IP address matched host_lookup and the reverse lookup yielded a name
1478 that did not have a forward lookup, an error message of the form "no IP
1479 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1480 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1481
5977a0b3
PH
1482PH/28 An enabling patch from MH: add new function child_open_exim2() which
1483 allows the sender and the authenticated sender to be set when
1484 submitting a message from within Exim. Since child_open_exim() is
1485 documented for local_scan(), the new function should be too.
1486
c91535f3
PH
1487PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1488 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1489 results in an empty string is now treated as unset.
1490
0d46a8c8
PH
1491PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1492
278c6e6c
PH
1493PH/31 Added sender_verify_fail logging option.
1494
2cbb4081
PH
1495PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1496 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1497 tidied the source and removed it altogether.
1498
3eef829e
PH
1499PH/33 When a queue run was abandoned because the load average was too high, a
1500 log line was always written; now it is written only if the queue_run log
1501 selector is set. In addition, the log line for abandonment now contains
1502 information about the queue run such as the pid. This is always present
1503 in "start" and "stop" lines but was omitted from the "abandon" line.
1504
1ab95fa6
PH
1505PH/34 Omit spaces between a header name and the colon in the error message that
1506 is given when verify = headers_syntax fails (if there are lots of them,
1507 the message gets confusing).
1508
230205fc
PH
1509PH/35 Change the default for dns_check_names_pattern to allow slashes within
1510 names, as there are now some PTR records that contain slashes. This check
1511 is only to protect against broken name servers that fall over on strange
1512 characters, so the fact that it applies to all lookups doesn't matter.
1513
75e0e026
PH
1514PH/36 Now that the new test suite is complete, we can remove some of the
1515 special code in Exim that was needed for the old test suite. For example,
1516 sorting DNS records because real resolvers return them in an arbitrary
1517 order. The new test suite's fake resolver always returns records in the
1518 same order.
1519
1520PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1521 bounces) except when queue_only is set, to avoid logging races between
1522 the different processes.
1523
145396a6
PH
1524PH/38 Panic-die if .include specifies a non-absolute path.
1525
3cd34f13
PH
1526PH/39 A tweak to the "H" retry rule from its user.
1527
11121d3d
JJ
1528JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1529 a label. They prevented compilation on older perls.
1530
1531JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1532 a warning to be raised on newish perls.
1533
1534JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1535 on queue. Changes to match documented behaviour of showing count of
1536 messages matching specified criteria.
1537
8def5aaf
PH
1538PH/40 Changed the default ident timeout from 30s to 5s.
1539
929ba01c
PH
1540PH/41 Added support for the use of login_cap features, on those BSD systems
1541 that have them, for controlling the resources used by pipe deliveries.
1542
2632889e
PH
1543PH/42 The content-scanning code uses fopen() to create files in which to put
1544 message data. Previously it was not paying any attention to the mode of
1545 the files. Exim runs with umask(0) because the rest of the code creates
1546 files with open(), and sets the required mode explicitly. Thus, these
1547 files were ending up world-writeable. This was not a big issue, because,
1548 being within the spool directory, they were not world-accessible. I have
1549 created a function called modefopen, which takes an additional mode
1550 argument. It sets umask(777), creates the file, chmods it to the required
1551 mode, then resets the umask. All the relevant calls to fopen() in the
1552 content scanning code have been changed to use this function.
1553
944a9c55
PH
1554PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1555 to 24 hours. This avoids potential overflow problems when processing G
1556 and H retry rules. I suspect nobody ever tinkers with this value.
1557
4a23603b
PH
1558PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1559
4730f942
PH
1560PH/45 When the plaintext authenticator is running as a client, the server's
1561 challenges are checked to ensure they are valid base64 strings. By
1562 default, the authentication attempt is cancelled if an invalid string is
1563 received. Setting client_ignore_invalid_base64 true ignores these errors.
1564 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1565 they are received. Thus, the responses can be made to depend on the
1566 challenges. If an invalid string is ignored, an empty string is placed in
1567 the variable.
1568
30dba1e6
PH
1569PH/46 Messages that are created by the autoreply transport now contains a
1570 References: header, in accordance with RFCs 2822 and 3834.
1571
382afc6b
PH
1572PH/47 Added authenticated_sender_force to the smtp transport.
1573
a86229cf
PH
1574PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1575
50c99ba6
PH
1576PH/49 Installed latest patch from the Sieve maintainer.
1577
d35e429d
PH
1578PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1579 was also set, the appendfile transport was unnecessarily scanning a
1580 directory of message files (e.g. for maildir delivery) to find the count
1581 of files (along with the size), even though it did not need this
1582 information. It now does the scan only if it needs to find either the
1583 size of the count of files.
1584
f90d018c
PH
1585PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1586
75def545
PH
1587PH/52 Two bugs concerned with error handling when the smtp transport is
1588 used in LMTP mode:
1589
1590 (i) Exim was not creating retry information for temporary errors given
1591 for individual recipients after the DATA command when the smtp transport
1592 was used in LMTP mode. This meant that they could be retried too
1593 frequently, and not timed out correctly.
1594
1595 (ii) Exim was setting the flag that allows error details to be returned
1596 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1597 recipients that were returned after the DATA command.
1598
1599PH/53 This is related to PH/52, but is more general: for any failing address,
1600 when detailed error information was permitted to be returned to the
1601 sender, but the error was temporary, then after the final timeout, only
1602 "retry timeout exceeded" was returned. Now it returns the full error as
1603 well as "retry timeout exceeded".
1604
c46782ef
PH
1605PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1606 do this, and (what is worse) MTAs that accept it.
1607
71fafd95
PH
1608PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1609 will now be deprecated.
1610
2c5db4fd
PH
1611PH/56 New os.c-cygwin from the Cygwin maintainer.
1612
9cf6b11a
JJ
1613JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1614 formats (previously only available in exim formats via -bpr, -bpru,
1615 and -bpra. Now also available in native and exiqgrep formats)
1616
1617JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1618 with very large, slow to parse queues
1619
1620JJ/08 exipick: added ! as generic prefix to negate any criteria format
1621
1622JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1623
898d150f
PH
1624PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1625 responses to authentication challenges, though it was showing the
1626 challenges; (ii) I've removed the CR characters from the debug output for
1627 SMTP output lines.
1628
46218253
PH
1629PH/58 Allow for the insertion of a newline as well as a space when a string
1630 is turned into more than one encoded-word during RFC 2047 encoding. The
1631 Sieve code now uses this.
1632
e97957bc
PH
1633PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1634 data_4xx, lost_connection, tls_required.
1635
81e509d7
PH
1636PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1637 message was being sent as an SMTP response.
1638
3d240ff7
PH
1639PH/61 Add -l and -k options to exicyclog.
1640
b37c4101
PH
1641PH/62 When verifying, if an address was redirected to one new address, so that
1642 verification continued, and the new address failed or deferred after
1643 having set something in $address_data, the value of $address_data was not
1644 passed back to the ACL. This was different to the case when no
1645 redirection occurred. The value is now passed back in both cases.
1646
79378e0f
PH
1647PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1648 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1649 use login_cap.h, so on its own it isn't the distinguishing feature. The
1650 new name refers directly to the setclassresources() function.
1651
e49c7bb4
PH
1652PH/65 Added configuration files for NetBSD3.
1653
d114ec46
PH
1654PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1655
f3d7df6c
PH
1656PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1657 is preferred over IPv4.
1658
715ab376
PH
1659PH/68 The bounce_return_message and bounce_return_body options were not being
1660 honoured for bounces generated during the reception of non-SMTP messages.
1661 In particular, this applied to messages rejected by the ACL. This bug has
1662 been fixed. However, if bounce_return_message is true and bounce_return_
1663 body is false, the headers that are returned for a non-SMTP message
1664 include only those that have been read before the error was detected.
1665 (In the case of an ACL rejection, they have all been read.)
1666
6b31b150
PH
1667PH/69 The HTML version of the specification is now built in a directory called
1668 spec_html instead of spec.html, because the latter looks like a path with
1669 a MIME-type, and this confuses some software.
1670
1671PH/70 Catch two compiler warnings in sieve.c.
1672
d515a917
PH
1673PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1674 function verify_get_ident() calls ip_connect() to connect a socket, but
1675 if the "connect()" function timed out, ip_connect() used to close the
1676 socket. However, verify_get_ident() also closes the socket later, and in
1677 between Exim writes to the log, which may get opened at this point. When
1678 the socket was closed in ip_connect(), the log could get the same file
1679 descriptor number as the socket. This naturally causes chaos. The fix is
1680 not to close the socket in ip_connect(); the socket should be closed by
1681 the function that creates it. There was only one place in the code where
1682 this was missing, in the iplookup router, which I don't think anybody now
1683 uses, but I've fixed it anyway.
1684
9b8fadde
PH
1685PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1686 well as to direct DNS lookups. Otherwise the handling of names in host
1687 lists is inconsistent and therefore confusing.
1688
214e2000 1689
5de37277
PH
1690Exim version 4.60
1691-----------------
1692
cc38ddbf
PH
1693PH/01 Two changes to the default runtime configuration:
1694
1695 (1) Move the checks for relay_from_hosts and authenticated clients from
1696 after to before the (commented out) DNS black list checks.
1697
1698 (2) Add control=submission to the relay_from_hosts and authenticated
1699 clients checks, on the grounds that messages accepted by these
1700 statements are most likely to be submissions.
5de37277 1701
72fdd6ae
PH
1702PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1703
1704 (1) Generate an error if the third argument for the ${prvs expansion is
1705 not a single digit.
1706
1707 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1708 string.
1709
1710 (3) Reset the variables that are obtained from the first argument of
1711 ${prvscheck and used in the second argument before leaving the code,
1712 because their memory is reclaimed, so using them afterwards may do
1713 silly things.
1714
1715 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1716 one (it's much easier than Tom thought :-).
1717
1718 (5) Because of (4), we can now allow for the use of $prvscheck_result
1719 inside the third argument.
cb9328de 1720
cb741023
PH
1721PH/03 For some reason, the default setting of PATH when running a command from
1722 a pipe transport was just "/usr/bin". I have changed it to
1723 "/bin:/usr/bin".
1724
f174f16e
PH
1725PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1726 anything to be listed in the output from -bV.
b2f5a032 1727
c25242d7
PH
1728PH/05 When a filter generated an autoreply, the entire To: header line was
1729 quoted in the delivery log line, like this:
1730
1731 => >A.N.Other <ano@some.domain> <original@ddress> ...
1732
1733 This has been changed so that it extracts the operative address. There
1734 may be more than one such address. If so, they are comma-separated, like
1735 this:
1736
1737 => >ano@some.domain,ona@other.domain <original@ddress> ...
1738
82c19f95
PH
1739PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1740 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1741 not being looked up in the rDNS to get a host name, Exim was showing the
1742 IP address twice in Received: lines, even though the IP addresses were
1743 identical. For example:
1744
1745 Received: from [1.2.3.4] (helo=[1.2.3.4])
1746
1747 However, if the real host name was known, it was omitting the HELO data
1748 if it matched the actual IP address. This has been tidied up so that it
1749 doesn't show the same IP address twice.
1750
d7ffbc12
PH
1751PH/07 When both +timestamp and +memory debugging was on, the value given by
1752 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1753 called by the debug printing, thereby overwriting the timestamp buffer.
1754 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1755
9f526266
PH
1756PH/08 When the original message was included in an autoreply transport, it
1757 always said "this is a copy of the message, including all the headers",
1758 even if body_only or headers_only was set. It now gives an appropriate
1759 message.
1760
87fcc8b9
PH
1761PH/09 Applied a patch from the Sieve maintainer which:
1762
1763 o fixes some comments
1764 o adds the (disabled) notify extension core
1765 o adds some debug output for the result of if/elsif tests
1766 o points to the current vacation draft in the documentation
1767 and documents the missing references header update
1768
1769 and most important:
1770
1771 o fixes a bug in processing the envelope test (when testing
1772 multiple envelope elements, the last element determinted the
1773 result)
1774
456682f5
PH
1775PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1776 Electronic Mail") by including:
1777
1778 Auto-submitted: auto-generated
1779
1780 in the messages that it generates (bounce messages and others, such as
1781 warnings). In the case of bounce messages for non-SMTP mesages, there was
1782 also a typo: it was using "Auto_submitted" (underscore instead of
1783 hyphen). Since every message generated by Exim is necessarily in response
1784 to another message, thes have all been changed to:
1785
1786 Auto-Submitted: auto-replied
1787
1788 in accordance with these statements in the RFC:
1789
1790 The auto-replied keyword:
1791
1792 - SHOULD be used on messages sent in direct response to another
1793 message by an automatic process,
1794
1795 - MUST NOT be used on manually-generated messages,
1796
1797 - MAY be used on Delivery Status Notifications (DSNs) and Message
1798 Disposition Notifications (MDNs),
1799
1800 - MUST NOT be used on messages generated by automatic or periodic
1801 processes, except for messages which are automatic responses to
1802 other messages.
1803
3e46c1aa
PH
1804PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1805 to the default Received: header definition.
456682f5 1806
49826d12
PH
1807PH/12 Added log selector acl_warn_skipped (default on).
1808
eba0c039
PH
1809PH/13 After a successful wildlsearch lookup, discard the values of numeric
1810 variables because (a) they are in the wrong storage pool and (b) even if
1811 they were copied, it wouldn't work properly because of the caching.
1812
a0d6ba8a
PH
1813PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1814 checking when decoding. Apparently there are clients that generate
1815 overlong encoded strings. Why am I not surprised?
1816
f0917727
PH
1817PH/15 If the first argument of "${if match_address" was not empty, but did not
1818 contain an "@" character, Exim crashed. Now it writes a panic log message
1819 and treats the condition as false.
1820
096fee00
PH
1821PH/16 In autoreply, treat an empty string for "once" the same as unset.
1822
024bd3c2
PH
1823PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1824 extension "envelope-auth". The code is finished and in agreement with
1825 other implementations, but there is no documentation so far and in fact,
1826 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1827 not changing the active code.
1828
1829 Print executed "if" and "elsif" statements when debugging is used. This
1830 helps a great deal to understand what a filter does.
1831
1832 Document more things not specified clearly in RFC3028. I had all this
1833 sorted out, when out of a sudden new issues came to my mind. Oops."
1834
df199fec
PH
1835PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1836 (Bugzilla #53).
1837
d27f1df3
PH
1838PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1839 canonical form (as documented). However, after a host name lookup from
1840 the IP address, check_host() was doing a simple string comparison with
1841 addresses acquired from the DNS when checking that the found name did
1842 have the original IP as one of its addresses. Since any found IPv6
1843 addresses are likely to be in abbreviated form, the comparison could
1844 fail. Luckily, there already exists a function for doing the comparison
1845 by converting both addresses to binary, so now that is used instead of
1846 the text comparison.
1847
96776534
PH
1848PH/20 There was another similar case to PH/19, when a complete host name was
1849 given in a host list; looking up its IP address could give an abbreviated
1850 form, whereas the current host's name might or might not be abbreviated.
1851 The same fix has been applied.
1852
5de37277 1853
9a799bc0
PH
1854Exim version 4.54
1855-----------------
1856
1857PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1858 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1859 It now does.
1860
99a4b039
PH
1861PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1862 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1863
1864PH/03 Typo: missing ".o" in src/pcre/Makefile.
1865
4b233853
PH
1866PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1867 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1868 Also, for "Auto-Submitted", treat anything other than "no" as
1869 non-personal, in accordance with RFC 3834. (Previously it treated
1870 anything starting "auto-" as non-personal.)
1871
8857ccfd
PH
1872TF/01 The control=submission/name=... option had a problem with syntax
1873 errors if the name included a slash character. The /name= option
1874 now slurps the rest of the string, so it can include any characters
1875 but it must come last in the list of options (after /sender_retain
1876 or /domain=).
1877
433a2980
PH
1878PH/05 Some modifications to the interface to the fake nameserver for the new
1879 testing suite.
1880
3e46c1aa 1881
9a799bc0 1882
e3a311ba
TK
1883Exim version 4.53
1884-----------------
1885
1886TK/01 Added the "success_on_redirect" address verification option. See
1887 NewStuff for rationale and an example.
1888
13b685f9
PH
1889PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1890
395ff96d
PH
1891PH/02 Patch to exigrep to allow it to work on syslog lines.
1892
5b68f6e4
PH
1893PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1894 fread() to skip over the body file's header line, because in Cygwin the
1895 header line is locked and is inaccessible.
1896
1ab52c69
PH
1897PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1898 co-exist for some time) to make it clear that it is the Exim ID that is
1899 referenced, not the Message-ID: header line.
1900
b07e6aa3
PH
1901PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1902 string_format() function, because snprintf() does not exist on all
1903 operating systems.
1904
254e032f
PH
1905PH/06 The use of forbid_filter_existstest now also locks out the use of the
1906 ${stat: expansion item.
1907
3af76a81
PH
1908PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1909 protocol synchronization error", to keep the pedants happy.
1910
2548ba04
PH
1911PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1912 well as for IRIX systems, when gcc is being used. See the host.c source
1913 file for comments.
1914
b6c6011d
PH
1915PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1916
cf39cf57
PH
1917PH/10 Named domain lists were not working if used in a queue_smtp_domains
1918 setting.
1919
f1513293
PH
1920PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1921 transport and to the smtp transport in LMTP mode.
1922
727549a4
PH
1923TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1924
af46795e
PH
1925PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1926 run a filter in a subprocess. This could lead to confusion in subsequent
1927 lookups in the parent process. There should also be a search_tidyup() at
1928 the end of the subprocess.
1929
d7b47fd0
PH
1930PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1931 only if the host matched helo_try_verify_hosts, which caused the
1932 verification to occur when the EHLO/HELO command was issued. The ACL just
1933 tested the remembered result. Now, if a previous verification attempt has
1934 not happened, "verify = helo" does it there and then.
1935
ee744174
JJ
1936JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1937
b582ab87
PH
1938TK/03 Fix log output including CR from clamd.
1939
41a13e0a
PH
1940PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1941 exist provoked a memory error which could cause a segfault.
1942
f625cc5a
PH
1943PH/15 Installed PCRE 6.2
1944
1945PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1946
21f7af35
PH
1947PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1948 of the problem. Specifically, suggested +O2 rather than +O1 for the
1949 HP-UX compiler.
1950
31480e42
PH
1951PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1952
2d280592
PH
1953PH/20 If a delivery was routed to a non-standard port by means of an SRV
1954 record, the port was not correctly logged when the outgoing_port log
1955 selector was set (it logged the transort's default port).
1956
7cd1141b
PH
1957PH/21 Added support for host-specific ports to manualroute, queryprogram,
1958 fallback_hosts, and "hosts" in the smtp transport.
1959
1960PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1961 host errors such as "Connection refused".
1962
750af86e
PH
1963PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1964 authentication with radiusclient 0.4.9:
1965
1966 - Error returned from rc_read_config was caught wrongly
1967 - Username/password not passed on to radius server due to wrong length.
1968
1969 The presumption is that some radiusclient API changes for 4.51/PH/17
1970 were not taken care of correctly. The code is still untested by me (my
1971 Linux distribution still has 0.3.2 of radiusclient), but it was
1972 contributed by a Radius user.
1973
1974PH/24 When doing a callout, the value of $domain wasn't set correctly when
1975 expanding the "port" option of the smtp transport.
1976
4304270b
TK
1977TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1978 while reading a MIME header. Thanks to Tom Hughes for a patch.
1979
750af86e
PH
1980PH/24 Include config.h inside local_scan.h so that configuration settings are
1981 available.
1982
64ffc24f
PH
1983PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1984 that in an ACL for RCPT (for example), you can examine exactly what was
1985 received.
1986
5dd9625b
PH
1987PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1988 commands, but it was not correctly comparing the address with the actual
1989 client host address. Thus, it would show the EHLO address in Received:
1990 header lines when this was not necessary.
1991
5591031b
PH
1992PH/27 Added the % operator to ${eval:}.
1993
ba18e66a
PH
1994PH/28 Exim tries to create and chdir to its spool directory when it starts;
1995 it should be ignoring failures (because with -C, for example, it has lost
1996 privilege). It wasn't ignoring creation failures other than "already
1997 exists".
1998
9cec981f
PH
1999PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2000 -bV or -d is used.
2001
aa2b5c79
PH
2002PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2003 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2004 too many continuations, the temporary file was not being removed, and the
2005 return code was incorrect.
aa2b5c79 2006
48a53b7f
PH
2007PH/31 Missing "BOOL" in function definition in filtertest.c.
2008
1c59d63b
PH
2009PH/32 Applied Sieve patches from the maintainer.
2010
671012da
TK
2011TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2012
1509d3a8
PH
2013PH/33 Added "verify = not_blind".
2014
2015PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2016 Local/Makefile (with some defaults set). These are used in built scripts
2017 such as exicyclog, but they have never been used in the exim_install
2018 script (though there are many overriding facilities there). I have
2019 arranged that the exim_install script now takes note of these two
2020 settings.
2021
2022PH/35 Installed configuration files for Dragonfly.
2023
2fe1a124
PH
2024PH/36 When a locally submitted message by a trusted user did not contain a
2025 From: header, and the sender address was obtained from -f or from an SMTP
2026 MAIL command, and the trusted user did not use -F to supply a sender
2027 name, $originator_name was incorrectly used when constructing a From:
2028 header. Furthermore, $originator_name was used for submission mode
2029 messages from external hosts without From: headers in a similar way,
2030 which is clearly wrong.
2031
8800895a
PH
2032PH/37 Added control=suppress_local_fixups.
2033
ccfdb010
PH
2034PH/38 When log_selector = +received_sender was set, and the addition of the
2035 sender made the log line's construction buffer exactly full, or one byte
2036 less than full, an overflow happened when the terminating "\n" was
2037 subsequently added.
2038
1130bfb0
PH
2039PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2040 when the result of a list match is failure because a DNS lookup failed.
2041
ebcb507f
PH
2042PH/40 RM_COMMAND is now used in the building process.
2043
c35e155c
PH
2044PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2045 the "build-* directories that it finds.
2046
95d1f782
PH
2047PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2048 address in a domain literal was a prefix of an interface address.
2049
fd6de02e
PH
2050PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2051 when verifying a sender address, unless rewrite_headers is false.
2052
58de37c5
PH
2053PH/44 Wrote a long comment about why errors_to addresses are verified as
2054 recipients, not senders.
2055
261cf466
TF
2056TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2057 the ratelimit ACL was added.
2058
3ee512ff
PH
2059PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2060
e08c430f
PH
2061PH/46 Added extra information about PostgreSQL errors to the error string.
2062
bef5a11f
PH
2063PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2064 avoiding the need to install special zones in a real server. This is
2065 backwards compatible; if it can't find the fake resolver, it drops back.
2066 Thus, both old and new test suites can be run.
2067
7546de58
TF
2068TF/02 Added util/ratelimit.pl
2069
e5d5a95f
TF
2070TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2071 clock is set back in time.
2072
2e88a017
TF
2073TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2074 Candler <B.Candler@pobox.com>.
2075
a5f65aa4
TF
2076TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2077 OK for addresses that are the result of redirections.
2078
e7726cbf
PH
2079PH/48 A number of further additions for the benefit of the new test suite,
2080 including a fake gethostbyname() that interfaces to the fake DNS resolver
2081 (see PH/47 above).
2082
a7fdad5b
TF
2083TF/06 The fix for widen_domains has also been applied to qualify_single and
2084 search_parents which are the other dnslookup options that can cause
2085 header rewrites.
2086
6af56900
PH
2087PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2088 type ("H").
2089
0925ede6
PH
2090PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2091
66afa403
TF
2092TF/07 Exim produced the error message "an SRV record indicated no SMTP
2093 service" if it encountered an MX record with an empty target hostname.
2094 The message is now "an MX or SRV record indicated no SMTP service".
2095
0154e85a
TF
2096TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2097 if the DNS of the sending site is misconfigured. This is quite a
2098 common situation. This change restores the behaviour of treating a
2099 helo verification defer as a failure.
2100
16f12c76
PH
2101PH/51 If self=fail was set on a router, the bounce message did not include the
2102 actual error message.
2103
bbe902f0 2104
e5a9dba6
PH
2105Exim version 4.52
2106-----------------
2107
2108TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2109
22c3b60b
PH
2110PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2111 command itself ended in error, the underlying message about the transport
2112 filter timeout was being overwritten with the pipe command error. Now the
2113 underlying error message should be appended to the second error message.
2114
06a9b4b5
PH
2115TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2116
c1ac6996
PH
2117PH/02 Reduce the amount of output that "make" produces by default. Full output
2118 can still be requested.
2119
9c7a242c
PH
2120PH/03 The warning log line about a condition test deferring for a "warn" verb
2121 was being output only once per connection, rather than after each
2122 occurrence (because it was using the same function as for successful
2123 "warn" verbs). This seems wrong, so I have changed it.
2124
87ba3f5f
PH
2125TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2126 it should not have, which might have caused a crash in the right
2127 circumstances, but probably never did.
2128
2129PH/04 Installed a modified version of Tony Finch's patch to make submission
2130 mode fix the return path as well as the Sender: header line, and to
2131 add a /name= option so that you can make the user's friendly name appear
2132 in the header line.
2133
29aba418
TF
2134TF/03 Added the control = fakedefer ACL modifier.
2135
fe0dab11
TF
2136TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2137 Mark Lowes for thorough testing.
870f6ba8 2138
11d337a4
TK
2139TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2140
2141TK/03 Merged latest SRS patch from Miles Wilton.
2142
415c8f3b
PH
2143PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2144 with the definition in sysexits.h (which is #included earlier).
2145 Fortunately, Exim does not actually use EX_OK. The code used to try to
2146 preserve the sysexits.h value, by assumimg that macro definitions were
2147 scanned for macro replacements. I have been disabused of this notion,
2148 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2149
958541e9
PH
2150PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2151 in the smtp transport. When a block could not be written in a single
2152 write() function, the timeout was being re-applied to each part-write.
2153 This seems wrong - if the receiver was accepting one byte at a time it
2154 would take for ever. The timeout is now adjusted when this happens. It
2155 doesn't have to be particularly precise.
2156
c206415f
TK
2157TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2158 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2159
2a4be8f9
PH
2160PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2161 without a domain if the check to <postmaster@domain> fails.
2162
1cba11c5
SC
2163SC/01 Eximstats: added -xls and the ability to specify output files
2164 (patch written by Frank Heydlauf).
2165
2166SC/02 Eximstats: use FileHandles for outputing results.
2167
2168SC/03 Eximstats: allow any combination of xls, txt, and html output.
2169
2170SC/04 Eximstats: fixed display of large numbers with -nvr option
2171
2172SC/05 Eximstats: fixed merging of reports with empty tables.
2173
2174SC/06 Eximstats: added the -include_original_destination flag
2175
2176SC/07 Eximstats: removed tabs and trailing whitespace.
2177
1005d00e
TK
2178TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2179
2180TK/06 MBOX spool code: Add real "From " MBOX separator line
2181 so the .eml file is really in mbox format (even though
2182 most programs do not really care). Patch from Alex Miller.
2183
2184TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2185 The latter is generated from $received_to and is only set if the
2186 message has one envelope recipient. SA can use these headers,
2187 obviously out-of-the-box. Patch from Alex Miller.
2188
9b4768fa
PH
2189PH/08 The ${def test on a variable was returning false if the variable's
2190 value was "0", contrary to what the specification has always said!
2191 The result should be true unless the variable is empty.
2192
2193PH/09 The syntax error of a character other than { following "${if
2194 def:variable_name" (after optional whitespace) was not being diagnosed.
2195 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2196 accidental colon was present, for example, could give incorrect results.
2197
0d7eb84a
PH
2198PH/10 Tidied the code in a number of places where the st_size field of a stat()
2199 result is used (not including appendfile, where other changes are about
2200 to be made).
2201
2202PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2203 This involved changing a lot of size variables from int to off_t. It
2204 should work with maildirs and everything.
2205
40727bee
TK
2206TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2207 spamd dying while we are connected to it.
2208
554d2369
TF
2209TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2210 <jgh@wizmail.org>
2211
1f922db1
PH
2212PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2213 function for BDB 4.3.
2214
ef213c3b
PH
2215PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2216
8ac170f3
PH
2217PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2218 the sources for PCRE have been re-arranged and more files are now
2219 involved.
2220
b1c749bb
PH
2221PH/15 The code I had for printing potentially long long variables in PH/11
2222 above was not the best (it lost precision). The length of off_t variables
2223 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2224 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2225 to be "long long int" or "long int". This is needed for the internal
2226 formatting function string_vformat().
b1c749bb 2227
4aac9b49
PH
2228PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2229 the configuration file to be ":syslog", then the script "guesses" where
2230 the logs files are, rather than using the compiled in default. In our
2231 case the guess is not the same as the compiled default, so the script
2232 suddenly stopped working when I started to use syslog. The patch checks
2233 to see if log_file_path is "". If so, it attempts to read it from exim
2234 with no configuration file to get the compiled in version, before it
2235 falls back to the previous guessing code."
2236
294520c8
TK
2237TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2238 implementing BATV in an Exim configuration. See NewStuff for the gory
2239 details.
2240
5bd022fe
PH
2241PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2242 Makefile that are specific to HP-UX.
2243
90e9ce59
PH
2244PH/18 If the "use_postmaster" option was set for a recipient callout together
2245 with the "random" option, the postmaster address was used as the MAIL
2246 FROM address for the random test, but not for the subsequent recipient
2247 test. It is now used for both.
2248
5ea81592
PH
2249PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2250 patch removes a few documentation additions to RFC 3028, because the
2251 latest draft now contains them. It adds the new en;ascii-case comparator
2252 and a new error check for 8bit text in MIME parts. Comparator and
2253 require names are now matched exactly. I enabled the subaddress
2254 extension, but it is not well tested yet (read: it works for me)."
2255
c6c2dc1d
PH
2256PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2257 rework some of the code of TK/09 above to avoid the hardwired use of
2258 "%lld" and "long long". Replaced the call to snprintf() with a call to
2259 string_vformat().
2260
fffffe4c
PH
2261PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2262 records point to non-existent hosts", "retry timeout exceeded", and
2263 "retry time not reached for any host after a long failure period".
ca02eafb 2264
9a26b6b2
PH
2265PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2266 experimental DomainKeys support:
2267
2268 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2269 (2) On an error such as an illegally used "control", the wrong name for
2270 the control was given.
2271
2272 These problems did NOT occur unless DomainKeys support was compiled.
2273
4aee0225
PH
2274PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2275
32d668a5
PH
2276PH/24 Added ${if match_ip condition.
2277
8187c3f3
PH
2278PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2279 databases so that it will be absolutely obvious if a crash occurs in the
2280 DB library. This is a regular occurrence (often caused by mis-matched
2281 db.h files).
2282
ff790e47 2283PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2284 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2285 picked up on a user's system that detects such things. There doesn't seem
2286 to be a gcc warning option for this - only an attribute that has to be
2287 put on the function's prototype. It seems that in Fedora Core 4 they have
2288 set this on a number of new functions. No doubt there will be more in due
2289 course.
ff790e47 2290
5417f6d1
PH
2291PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2292 specify a transport. However, if an address that was verified by such a
2293 router was the subject of a callout, Exim crashed because it tried to
2294 read the rcpt_include_affixes from the non-existent transport. Now it
2295 just assumes that the setting of that option is false. This bug was
2296 introduced by 4.51/PH/31.
2297
59cf8544
PH
2298PH/28 Changed -d+all to exclude +memory, because that information is very
2299 rarely of interest, but it makes the output a lot bigger. People tend to
2300 do -d+all out of habit.
2301
e7ad8a65
PH
2302PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2303 code in os-type was giving problems when libc.so lives in lib64, like on
2304 x86_64 Fedora Core.
2305
ade42478
PH
2306PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2307 aren't the modern standard, and it seems that some systems' include files
2308 don't always have them. Exim was already checking for some of the newer
2309 ones like T_AAAA, and defining it itself. I've added checks for all the
2310 record types that Exim uses.
2311
182ad5cf
PH
2312PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2313 not automatically generating a new one, as it is supposed to. This
2314 prevented TLS from working. If the file did exist, but contained invalid
2315 data, a new version was generated, as expected. It was only the case of a
2316 non-existent file that was broken.
2317
b0d9fc80
TK
2318TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2319 with a change in libdomainkeys > 0.64.
2320
2321TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2322 from DNS. If the selector record carries the flag, it now has
2323 precedence over the domain-wide flag.
2324
2325TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2326
47c7a64a
PH
2327PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2328 the use of a port name that isn't defined in /etc/services) occurred, the
2329 message was deferred as in a normal delivery, and thus remained on the
2330 spool, instead of being failed because of the mua_wrapper setting. This
2331 is now fixed, and I tidied up some of the mua_wrapper messages at the
2332 same time.
2333
a388bce4
SC
2334SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2335 the messages in a hash of arrays rather than using individual hashes.
2336 This is a bit cleaner and results in dramatic memory savings, albeit
2337 at a slight CPU cost.
2338
2339SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2340 as requested by Marc Sherman.
2341
2342SC/10 Eximstats: added histograms for user specified patterns as requested
2343 by Marc Sherman.
2344
0793e4ed
SC
2345SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2346
c58b88df
PH
2347PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2348 fopen() in the content-scanning modules that did not already have it.
2349
e7ad8a65 2350
7982096b
PH
2351Exim version 4.51
2352-----------------
2353
1a46a8c5
PH
2354TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2355 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2356
2f079f46 2357TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2358
2359TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2360
2361PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2362 to test Sieve filters that use "vacation".
2363
2364PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2365 that changes the way the GnuTLS parameters are stored in the cache file.
2366 The new format can be generated externally. For backward compatibility,
2367 if the data in the cache doesn't make sense, Exim assumes it has read an
2368 old-format file, and it generates new data and writes a new file. This
2369 means that you can't go back to an older release without removing the
2370 file.
2371
2372PH/03 A redirect router that has both "unseen" and "one_time" set does not
2373 work if there are any delivery delays because "one_time" forces the
2374 parent to be marked "delivered", so its unseen clone is never tried
2375 again. For this reason, Exim now forbids the simultaneous setting of
2376 these two options.
2377
2378PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2379 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2380 entry if you want to know the details. The fix, however, neglected to
2381 consider the case when local delivery batching is involved. The test for
2382 "previously delivered" was not happening when checking to see if an
2383 address could be batched with a previous (undelivered) one; under
2384 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2385 address.
1a46a8c5
PH
2386
2387PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2388 in its include files, and this causes problems building Exim.
2389
2390PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2391 header_syntax) but Exim was just ignoring anything given after a slash.
2392 In particular, this caused confusion with an attempt to use "verify =
2393 reverse_host_lookup/defer_ok". An error is now given when options are
2394 supplied for verify items that do not have them. (Maybe reverse_host_
2395 lookup should have a defer_ok option, but that's a different point.)
2396
2397PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2398 defined by RFC 821) to 2048, because there were problems with some AUTH
2399 commands, and RFC 1869 says the size should be increased for extended
2400 SMTP commands that take arguments.
2401
2402PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2403 Finch).
2404
2405PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2406 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2407
49c2d5ea
PH
2408PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2409 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2410 whatever). Otherwise the password may appear in the log. Following change
2411 PH/42 below, there is no longer a chance of it appearing in a bounce
2412 message.
49c2d5ea 2413
bf759a8b
PH
2414PH/11 Installed exipick version 20050225.0 from John Jetmore.
2415
83364d30
PH
2416PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2417 of its addresses was ever tried. (Bugzilla bug #2.)
2418
7999bbd7
PH
2419PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2420 the result incorrectly in the debug output. (It correctly added a newline
2421 to what was transported.)
2422
7dbf77c9
PH
2423TF/01 Added $received_time.
2424
74e0617f
PH
2425PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2426 commented out examples of how to interface to a virus scanner and to
2427 SpamAssassin. Also added commented examples of av_scanner and
2428 spamd_address settings.
2429
2f079f46
PH
2430PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2431 and controls are allowed in which ACLs. There were a couple of minor
2432 errors. Some of the entries in the conditions table (which is a table of
2433 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2434 negation of where the condition IS allowed.
2435
8c841523
PH
2436PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2437
7766a4f0
PH
2438PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2439 header file does not have a version number, so I've had to invent a new
2440 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2441 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2442 radiusclient), but it was contributed by a Radius user.
2443
8b417f2c
PH
2444PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2445 files or directories, for OpenSSL.
2446
901f42cb
PH
2447PH/19 When an Exim process that is running as root has to create an Exim log
2448 file, it does so in a subprocess that runs as exim:exim so as to get the
2449 ownership right at creation (otherwise, other Exim processes might see
2450 the file with the wrong ownership). There was no test for failure of this
2451 fork() call, which would lead to the process getting stuck as it waited
2452 for a non-existent subprocess. Forks do occasionally fail when resources
2453 run out. I reviewed all the other calls to fork(); they all seem to check
2454 for failure.
2455
f9b9210e
PH
2456PH/20 When checking for unexpected SMTP input at connect time (before writing
2457 the banner), Exim was not dealing correctly with a non-positive return
2458 from the read() function. If the client had disconnected by this time,
2459 the result was a log entry for a synchronization error with an empty
2460 string after "input=" when read() returned zero. If read() returned -1
2461 (an event I could not check), uninitialized data bytes were printed.
2462 There were reports of junk text (parts of files, etc) appearing after
2463 "input=".
2464
54cdb463
PH
2465PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2466
cf00dad6
PH
2467PH/22 Added support for macro redefinition, and (re)definition in between
2468 driver and ACL definitions.
2469
acb1b346
PH
2470PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2471 forgetting to use the resulting value; it was using the unexpanded value.
2472
c5ddb310
PH
2473PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2474 hadn't been configured. The fix is from Juergen Kreileder, who
2475 understands it better than I do:
2476
2477 "Here's what I see happening with three configured cyrus_sasl
2478 authenticators configured (plain, login, cram-md5):
2479
2480 On startup auth_cyrus_sasl_init() gets called for each of these.
2481 This means three calls to sasl_listmech() without a specified mech_list.
2482 => SASL tests which mechs of all available mechs actually work
2483 => three warnings about OTP not working
2484 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2485
2486 With the patch, sasl_listmech() also gets called three times. But now
2487 SASL's mech_list option is set to the server_mech specified in the the
2488 authenticator. Or in other words, the answer from sasl_listmech()
2489 gets limited to just the mech you're testing for (which is different
2490 for each call.)
2491 => the return list contains just 'plain' or 'login', 'cram-md5' or
2492 nothing depending on the value of ob->server_mech.
2493
2494 I've just tested the patch: Authentication still works fine,
2495 unavailable mechs specified in the exim configuration are still
2496 caught, and the auth.log warnings about OTP are gone."
2497
31619da6
PH
2498PH/25 When debugging is enabled, the contents of the command line are added
2499 to the debugging output, even when log_selector=+arguments is not
2500 specified.
2501
bebaf0fc
PH
2502PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2503 answer is "GNU", and only if the return is "GNU/something" is the answer
2504 "Linux".
2505
475fe28a
PH
2506PH/27 $acl_verify_message is now set immediately after the failure of a
2507 verification in an ACL, and so is available in subsequent modifiers. In
2508 particular, the message can be preserved by coding like this:
2509
2510 warn !verify = sender
2511 set acl_m0 = $acl_verify_message
2512
2513 Previously, $acl_verify_message was set only while expanding "message"
2514 and "log_message" when a very denied access.
2515
7e8bec7a
PH
2516PH/28 Modified OS/os.c-Linux with
2517
2518 -#ifndef OS_LOAD_AVERAGE
2519 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2520
2521 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2522 nomenclature these days.)
2523
e4a89c47
PH
2524PH/29 Installed patch from the Sieve maintainer that adds the options
2525 sieve_useraddress and sieve_subaddress to the redirect router.
2526
5ca2a9a1
PH
2527PH/30 In these circumstances:
2528 . Two addresses routed to the same list of hosts;
2529 . First host does not offer TLS;
2530 . First host accepts first address;
2531 . First host gives temporary error to second address;
2532 . Second host offers TLS and a TLS session is established;
2533 . Second host accepts second address.
2534 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2535 and peerdn, if requested) that were in fact used only for the second
2536 address.
7e8bec7a 2537
c688b954
PH
2538PH/31 When doing a callout as part of verifying an address, Exim was not paying
2539 attention to any local part prefix or suffix that was matched by the
2540 router that accepted the address. It now behaves in the same way as it
2541 does for delivery: the affixes are removed from the local part unless
2542 rcpt_include_affixes is set on the transport.
2543
fed77020
PH
2544PH/32 Add the sender address, as F=<...>, to the log line when logging a
2545 timeout during the DATA phase of an incoming message.
2546
7fe1560f
PH
2547PH/33 Sieve envelope tests were broken for match types other than :is. I have
2548 applied a patch sanctioned by the Sieve maintainer.
c688b954 2549
ebb6e6d5
PH
2550PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2551 the uid or gid is negative. A case of a negative gid caused this to be
2552 noticed. The fix allows for either to be negative.
2553
9c4e8f60
PH
2554PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2555 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2556 overlooked.
2557
2558PH/36 The change PH/12 above was broken. Fixed it.
2559
d7174846
PH
2560PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2561 the grounds that routing the same address twice would always produce the
2562 same answer. This might have been true once, but it is certainly no
2563 longer true now. Routing a child address may depend on the previous
2564 routing that produced that child. Some complicated redirection strategies
2565 went wrong when messages had multiple recipients, and made Exim's
2566 behaviour dependent on the order in which the addresses were given.
2567
2568 I have moved the duplicate checking until after the routing is complete.
2569 Exim scans the addresses that are assigned to local and remote
2570 transports, and removes any duplicates. This means that more work will be
2571 done, as duplicates will always all be routed, but duplicates are
2572 presumably rare, so I don't expect this is of any significance.
2573
2574 For deliveries to pipes, files, and autoreplies, the duplicate checking
2575 still happens during the routing process, since they are not going to be
2576 routed further.
2577
cfe75fc3
PH
2578PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2579 It corrects a timeout issue with spamd. This is Ian's comment: "The
2580 background is that sometimes spamd either never reads data from a
2581 connection it has accepted, or it never writes response data. The exiscan
2582 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2583 blindly assumes that writes won't block so it may never time out."
2584
be22d70e
PH
2585PH/39 Allow G after quota size as well as K and M.
2586
0612b098
PH
2587PH/40 The value set for $authenticated_id in an authenticator may not contain
2588 binary zeroes or newlines because the value is written to log lines and
2589 to spool files. There was no check on this. Now the value is run through
2590 the string_printing() function so that such characters are converted to
2591 printable escape sequences.
2592
2e0c1448
PH
2593PH/41 $message_linecount is a new variable that contains the total number of
2594 lines in the message. Compare $body_linecount, which is the count for the
2595 body only.
2596
447d236c
PH
2597PH/42 Exim no longer gives details of delivery errors for specific addresses in
2598 bounce and delay warning messages, except in certain special cases, which
2599 are as follows:
2600
2601 (a) An SMTP error message from a remote host;
2602 (b) A message specified in a :fail: redirection;
2603 (c) A message specified in a "fail" command in a system filter;
2604 (d) A message specified in a FAIL return from the queryprogram router;
2605 (e) A message specified by the cannot_route_message router option.
2606
2607 In these cases only, Exim does include the error details in bounce and
2608 warning messages. There are also a few cases where bland messages such
2609 as "unrouteable address" or "local delivery error" are given.
2610
d20976dc
PH
2611PH/43 $value is now also set for the "else" part of a ${run expansion.
2612
f656d135
PH
2613PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2614 being worked on, but at least Exim now implements the latest version to
2615 play with."
2616
2e2a30b4
PH
2617PH/45 In a pipe transport, although a timeout while waiting for the pipe
2618 process to complete was treated as a delivery failure, a timeout while
2619 writing the message to the pipe was logged, but erroneously treated as a
2620 successful delivery. Such timeouts include transport filter timeouts. For
2621 consistency with the overall process timeout, these timeouts are now
2622 treated as errors, giving rise to delivery failures by default. However,
2623 there is now a new Boolean option for the pipe transport called
2624 timeout_defer, which, if set TRUE, converts the failures into defers for
2625 both kinds of timeout. A transport filter timeout is now identified in
2626 the log output.
2627
9176e9f0
PH
2628PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2629 systems where "make" and "gmake" are different, calling "gmake" at top
2630 level broke things. I've arranged for the value of $(MAKE) to be passed
2631 from the Makefile to this script so that it can call the same version of
2632 "make".
2633
7982096b 2634
bbe902f0
PH
2635A note about Exim versions 4.44 and 4.50
2636----------------------------------------
2637
2638Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2639changes of various kinds. As a consequence, a big documentation update was
2640needed. This delayed the release for rather longer than seemed good, especially
2641in the light of a couple of (minor) security issues. Therefore, the changes
2642that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2643release. So 4.44 and 4.50 are in effect two different branches that both start
2644from 4.43.
2645
2646I have left the 4.50 change log unchanged; it contains all the changes since
26474.43. The change log for 4.44 is below; many of its items are identical to
2648those for 4.50. This seems to be the most sensible way to preserve the
2649historical information.
2650
2651
f7b63901 2652Exim version 4.50
495ae4b0
PH
2653-----------------
2654
5fe762f6
PH
2655 1. Minor wording change to the doc/README.SIEVE file.
2656
139059f6 2657 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2658 computation of the current number of files was incorrect.
495ae4b0 2659
7086e875
PH
2660 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2661 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2662 place.
2663
35af9f61
PH
2664 4. Give more explanation in the error message when the command for a transport
2665 filter fails to execute.
2666
b668c215
PH
2667 5. There are several places where Exim runs a non-Exim command in a
2668 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2669 was being done only for the command run by the queryprogram router. It is
2670 now done for all such subprocesses. The other cases are: ${run, transport
2671 filters, and the commands run by the lmtp and pipe transports.
2672
a494b1e1
PH
2673 6. Added CONFIGURE_GROUP build-time option.
2674
2675 7. Some older OS have a limit of 256 on the maximum number of file
2676 descriptors. Exim was using setrlimit() to set 1000 as a large value
2677 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2678 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2679
c5fcb476
PH
2680 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2681 was an oversight, and furthermore, ever since the addition of extra
2682 controls (e.g. 4.43/32), the checks on when to allow different forms of
2683 "control" were broken. There should now be diagnostics for all cases when a
2684 control that does not make sense is encountered.
2685
69358f02
PH
2686 9. Added the /retain_sender option to "control=submission".
2687
5be20824
PH
268810. $recipients is now available in the predata ACL (oversight).
2689
eb2c0248
PH
269011. Tidy the search cache before the fork to do a delivery from a message
2691 received from the command line. Otherwise the child will trigger a lookup
2692 failure and thereby defer the delivery if it tries to use (for example) a
2693 cached ldap connection that the parent has called unbind on.
2694
2a3eea10
PH
269512. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2696 of $address_data from the recipient verification was clobbered by the
2697 sender verification.
2698
269913. The value of address_data from a sender verification is now available in
2700 $sender_address_data in subsequent conditions in the ACL statement.
2701
23c7ff99
PH
270214. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2703
4deaf07d
PH
270415. Added a new option "connect=<time>" to callout options, to set a different
2705 connection timeout.
2706
926e1192
PH
270716. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2708 was its contents. (It was OK if the option was not defined at all.)
2709
650edc6f
PH
271017. A "Completed" log line is now written for messages that are removed from
2711 the spool by the -Mrm option.
2712
2c7db3f5
PH
271318. New variables $sender_verify_failure and $recipient_verify_failure contain
2714 information about exactly what failed.
2715
3d235903
PH
271619. Added -dd to debug only the daemon process.
2717
7c7ad977
PH
271820. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2719 handles timeouts, both on the server side and network timeouts. Renamed the
2720 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2721
981756db
PH
272221. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2723 It is now set to "smtps".
2724
d4eb88df
PH
272522. $host_address is now set to the target address during the checking of
2726 ignore_target_hosts.
2727
272823. When checking ignore_target_hosts for an ipliteral router, no host name was
2729 being passed; this would have caused $sender_host_name to have been used if
2730 matching the list had actually called for a host name (not very likely,
2731 since this list is usually IP addresses). A host name is now passed as
2732 "[x.x.x.x]".
2733
7d468ab8
PH
273424. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2735 code that specifies a non-restarting handler (typically sigaction() in
2736 modern systems) in an attempt to fix a rare and obscure crash bug.
2737
273825. Narrowed the window for a race in the daemon that could cause it to ignore
2739 SIGCHLD signals. This is not a major problem, because they are used only to
2740 wake it up if nothing else does.
2741
62c0818f
PH
274226. A malformed maildirsize file could cause Exim to calculate negative values
2743 for the mailbox size or file count. Odd effects could occur as a result.
2744 The maildirsize information is now recalculated if the size or filecount
2745 end up negative.
2746
26034054
PH
274727. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2748 support for a long time. Removed HAVE_SYS_VFS_H.
2749
af66f652
PH
275028. Installed the latest version of exipick from John Jetmore.
2751
90af77f4
PH
275229. In an address list, if the pattern was not a regular expression, an empty
2753 subject address (from a bounce message) matched only if the pattern was an
2754 empty string. Non-empty patterns were not even tested. This was the wrong
2755 because it is perfectly reasonable to use an empty address as part of a
2756 database query. An empty address is now tested by patterns that are
2757 lookups. However, all the other forms of pattern expect the subject to
2758 contain a local part and a domain, and therefore, for them, an empty
2759 address still always fails if the pattern is not itself empty.
2760
d8ef3577
PH
276130. Exim went into a mad DNS loop when attempting to do a callout where the
2762 host was specified on an smtp transport, and looking it up yielded more
2763 than one IP address.
2764
5cb8cbc6
PH
276531. Re-factored the code for checking spool and log partition space into a
2766 function that finds that data and another that does the check. The former
2767 is then used to implement four new variables: $spool_space, $log_space,
2768 $spool_inodes, and $log_inodes.
2769
14702f5b
PH
277032. The RFC2047 encoding function was originally intended for short strings
2771 such as real names; it was not keeping to the 75-character limit for
2772 encoded words that the RFC imposes. It now respects the limit, and
2773 generates multiple encoded words if necessary. To be on the safe side, I
2774 have increased the buffer size for the ${rfc2047: expansion operator from
2775 1024 to 2048 bytes.
2776
063b1e99
PH
277733. It is now permitted to omit both strings after an "if" condition; if the
2778 condition is true, the result is "true". As before, when the second string
2779 is omitted, a false condition yields an empty string. This makes it less
2780 cumbersome to write custom ACL and router conditions.
2781
652e1b65
PH
278234. Failure to deliver a bounce message always caused it to be frozen, even if
2783 there was an errors_to setting on the router. The errors_to setting is now
2784 respected.
2785
6f0c9a4f
PH
278635. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2787 canonical form (fully expanded) before being placed in
2788 $sender_host_address.
2789
33397d19
PH
279036. The table in the code that translates DNS record types into text (T_A to
2791 "A" for instance) was missing entries for NS and CNAME. It is just possible
2792 that this could have caused confusion if both these types were looked up
2793 for the same domain, because the text type is used as part of Exim's
2794 per-process caching. But the chance of anyone hitting this buglet seems
2795 very small.
2796
7bb56e1f
PH
279737. The dnsdb lookup has been extended in a number of ways.
2798
2799 (1) There is a new type, "zns", which walks up the domain tree until it
2800 finds some nameserver records. It should be used with care.
2801
ea3bc19b
PH
2802 (2) There is a new type, "mxh", which is like "mx" except that it returns
2803 just the host names, not the priorities.
2804
2805 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2806 looked up. The behaviour when one of the lookups defers can be
2807 controlled by a keyword.
7bb56e1f 2808
ea3bc19b 2809 (4) It is now possible to specify the separator character for use when
7bb56e1f 2810 multiple records are returned.
33397d19 2811
0bcb2a0e
PH
281238. The dnslists ACL condition has been extended: it is now possible to supply
2813 a list of IP addresses and/or domains to be looked up in a particular DNS
2814 domain.
2815
2ac0e484
PH
281639. Added log_selector=+queue_time_overall.
2817
4e1fde53
PH
281840. When running the queue in the test harness, wait just a tad after forking a
2819 delivery process, to get repeatability of debugging output.
2820
de365ded
PH
282141. Include certificate and key file names in error message when GnuTLS fails
2822 to set them up, because the GnuTLS error message doesn't include the name
2823 of the failing file when there is a problem reading it.
2824
f05da2e8
PH
282542. Allow both -bf and -bF in the same test run.
2826
d6453af2
PH
282743. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2828
f7b63901
PH
282944. The "Exiscan patch" is now merged into the mainline Exim source.
2830
283145. Sometimes the final signoff response after QUIT could fail to get
2832 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2833 < 0 before doing a fflush(). This bug looks as though it goes back to the
2834 introduction of TLS in release 3.20, but "sometimes" must have been rare
2835 because the tests only now provoked it.
2836
a444213a
PH
283746. Reset the locale to "C" after calling embedded Perl, in case it was changed
2838 (this can affect the format of dates).
2839
0ec020ea
PH
284047. exim_tidydb, when checking for the continued existence of a message for
2841 which it has found a message-specific retry record, was not finding
2842 messages that were in split spool directories. Consequently, it was
2843 deleting retry records that should have stayed in existence.
2844
b1206957
PH
284548. Steve fixed some bugs in eximstats.
2846
284749. The SPA authentication driver was not abandoning authentication and moving
2848 on to the next authenticator when an expansion was forced to fail,
2849 contradicting the general specification for all authenticators. Instead it
2850 was generating a temporary error. It now behaves as specified.
2851
26dd5a95
PH
285250. The default ordering of permitted cipher suites for GnuTLS was pessimal
2853 (the order specifies the preference for clients). The order is now AES256,
2854 AES128, 3DES, ARCFOUR128.
2855
343b2385
PH
285651. Small patch to Sieve code - explicitly set From: when generating an
2857 autoreply.
2858
1c5466b9
PH
285952. Exim crashed if a remote delivery caused a very long error message to be
2860 recorded - for instance if somebody sent an entire SpamAssassin report back
2861 as a large number of 550 error lines. This bug was coincidentally fixed by
2862 increasing the size of one of Exim's internal buffers (big_buffer) that
2863 happened as part of the Exiscan merge. However, to be on the safe side, I
2864 have made the code more robust (and fixed the comments that describe what
2865 is going on).
2866
55ee9ee3
PH
286753. Now that there can be additional text after "Completed" in log lines (if
2868 the queue_time_overall log selector is set), a one-byte patch to exigrep
2869 was needed to allow it to recognize "Completed" as not the last thing in
2870 the line.
2871
d38f8232
PH
287254. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2873 patch that reportedly fixes this has been added. I am not expert enough to
2874 create a test for it. This is what the patch creator wrote:
2875
2876 "I found a little strange behaviour of ldap code when working with
2877 Windows 2003 AD Domain, where users was placed in more than one
2878 Organization Units. When I tried to give exim partial DN, the exit code
2879 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2880 But simultaneously result of request was absolutely normal ldap result,
2881 so I produce this patch..."
2882
3295e65b
PH
2883 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2884 REFERENCE, so I have modified the code to exclude the patch when that macro
2885 is not defined.
2886
7102e136
PH
288755. Some experimental protocols are using DNS PTR records for new purposes. The
2888 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2889 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2890 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2891 CAN-2005-0021
7102e136 2892
3ca0ba97
PH
289356. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2894
c2bcbe20
PH
289557. Double the size of the debug message buffer (to 2048) so that more of very
2896 long debug lines gets shown.
2897
18ce445d
PH
289858. The exicyclog utility now does better if the number of log files to keep
2899 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2900
1f5b4c3d
PH
290159. Two changes related to the smtp_active_hostname option:
2902
2903 (1) $smtp_active_hostname is now available as a variable.
2904 (2) The default for smtp_banner uses $smtp_active_hostname instead
2905 of $primary_hostname.
2906
b975ba52
PH
290760. The host_aton() function is supposed to be passed a string that is known
2908 to be a valid IP address. However, in the case of IPv6 addresses, it was
2909 not checking this. This is a hostage to fortune. Exim now panics and dies
2910 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2911 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2912 components; fortuitously, this particular loophole had already been fixed
2913 by change 4.50/55 above.
2914
2915 If there are any other similar loopholes, the new check in host_aton()
2916 itself should stop them being exploited. The report I received stated that
2917 data on the command line could provoke the exploit when Exim was running as
2918 exim, but did not say which command line option was involved. All I could
2919 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2920 running as the user.
ea3a6f44 2921 CAN-2005-0021
85b87bc2
PH
2922
292361. There was a buffer overflow vulnerability in the SPA authentication code
2924 (which came originally from the Samba project). I have added a test to the
2925 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2926 CAN-2005-0022
b975ba52 2927
17ffcae7
PH
292862. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2929 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2930
d95f9fdb
PH
293163. The daemon start-up calls getloadavg() while still root for those OS that
2932 need the first call to be done as root, but it missed one case: when
2933 deliver_queue_load_max is set with deliver_drop_privilege. This is
2934 necessary for the benefit of the queue runner, because there is no re-exec
2935 when deliver_drop_privilege is set.
2936
86b8287f
PH
293764. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2938 This has been fixed.
2939
60dc5e56
PH
294065. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2941 was in use, was not putting the data itself into the right store pool;
2942 consequently, it could be overwritten for a subsequent message in the same
2943 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2944 the caching.)
2945
533244af
PH
294666. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2947
a5a28604
PH
294867. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2949 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2950 the function were treating the return as a boolean value, which happened to
2951 work because 0=false and not-0=true, but is not correct code.
2952
7e634d24
PH
295368. The host_aton() function was not handling scoped IPv6 addresses (those
2954 with, for example, "%eth0" on the end) correctly.
2955
3e11c26b
PH
295669. Fixed some compiler warnings in acl.c for the bitmaps specified with
2957 negated items (that is, ~something) in unsigned ints. Some compilers
2958 apparently mutter when there is no cast.
2959
6729cf78
PH
296070. If an address verification called from an ACL failed, and did not produce a
2961 user-specific message (i.e. there was only a "system" message), nothing was
2962 put in $acl_verify_message. In this situation, it now puts the system
2963 message there.
2964
00f00ca5
PH
296571. Change 4.23/11 added synchronization checking at the start of an SMTP
2966 session; change 4.31/43 added the unwanted input to the log line - except
2967 that it did not do this in the start of session case. It now does.
2968
c9bdd01c
PH
296972. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2970 This is wrong and can cause the other end to generate a synchronization
2971 error if it is another Exim or anything else that does the synchronization
2972 check. A QUIT command is no longer sent after a timeout.
2973
d43194df
PH
297473. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2975 during host lookups.
2976
fe5b5d0b
PH
297774. The defer_ok option of callout verification was not working if it was used
2978 when verifying addresses in header lines, that is, for this case:
2979
2980 verify = header_sender/callout=defer_ok
2981
76a2d7ba
PH
298275. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2983 those file descriptors could be used for SMTP connections. If anything
2984 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2985 could be sent to the SMTP client, causing chaos. The daemon now opens
2986 stdin, stdout, and stderr to /dev/null when it puts itself into the
2987 background.
2988
298976. Arrange for output from Perl's "warn" command to be written to Exim's main
2990 log by default. The user can override this with suitable Perl magic.
2991
04f7d5b9
PH
299277. The use of log_message on a "discard" ACL verb, which is supposed to add to
2993 the log message when discard triggers, was not working for the DATA ACL or
2994 for the non-SMTP ACL.
2995
bc60667e
PH
299678. Error message wording change in sieve.c.
2997
bb6e88ff
PH
299879. If smtp_accept_max_per_host was set, the number of connections could be
2999 restricted to fewer than expected, because the daemon was trying to set up
3000 a new connection before checking whether the processes handling previous
3001 connections had finished. The check for completed processes is now done
3002 earlier. On busy systems, this bug wouldn't be noticed because something
3003 else would have woken the daemon, and it would have reaped the completed
3004 process earlier.
3005
1e70f85b
PH
300680. If a message was submitted locally by a user whose login name contained one
3007 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3008 It caused a spool format error. I have fixed the spool reading code. A
3009 related problem was that the "from" clause in the Received: line became
3010 illegal because of the space(s). It is now covered by ${quote_local_part.
3011
301281. Included the latest eximstats from Steve (adds average sizes to HTML Top
3013 tables).
3014
4e01f9d6
PH
301582. Updated OS/Makefile-AIX as per message from Mike Meredith.
3016
1ee1cef2
PH
301783. Patch from Sieve maintainer to fix unterminated string problem in
3018 "vacation" handling.
3019
6e2b4ccc
PH
302084. Some minor changes to the Linux configuration files to help with other
3021 OS variants using glibc.
3022
8e669ac1
PH
302385. One more patch for Sieve to update vacation handling to latest spec.
3024
495ae4b0 3025
bbe902f0
PH
3026----------------------------------------------------
3027See the note above about the 4.44 and 4.50 releases.
3028----------------------------------------------------
3029
3030
3031Exim version 4.44
3032-----------------
3033
3034 1. Change 4.43/35 introduced a bug that caused file counts to be
3035 incorrectly computed when quota_filecount was set in an appendfile
3036 transport
3037
3038 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3039 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3040 place.
3041
3042 3. Give more explanation in the error message when the command for a transport
3043 filter fails to execute.
3044
3045 4. There are several places where Exim runs a non-Exim command in a
3046 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3047 was being done only for the command run by the queryprogram router. It is
3048 now done for all such subprocesses. The other cases are: ${run, transport
3049 filters, and the commands run by the lmtp and pipe transports.
3050
3051 5. Some older OS have a limit of 256 on the maximum number of file
3052 descriptors. Exim was using setrlimit() to set 1000 as a large value
3053 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3054 systems. I've change it so that if it can't get 1000, it tries for 256.
3055
3056 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3057 was an oversight, and furthermore, ever since the addition of extra
3058 controls (e.g. 4.43/32), the checks on when to allow different forms of
3059 "control" were broken. There should now be diagnostics for all cases when a
3060 control that does not make sense is encountered.
3061
3062 7. $recipients is now available in the predata ACL (oversight).
3063
3064 8. Tidy the search cache before the fork to do a delivery from a message
3065 received from the command line. Otherwise the child will trigger a lookup
3066 failure and thereby defer the delivery if it tries to use (for example) a
3067 cached ldap connection that the parent has called unbind on.
3068
3069 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3070 of $address_data from the recipient verification was clobbered by the
3071 sender verification.
3072
307310. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3074 was its contents. (It was OK if the option was not defined at all.)
3075
307611. A "Completed" log line is now written for messages that are removed from
3077 the spool by the -Mrm option.
3078
307912. $host_address is now set to the target address during the checking of
3080 ignore_target_hosts.
3081
308213. When checking ignore_target_hosts for an ipliteral router, no host name was
3083 being passed; this would have caused $sender_host_name to have been used if
3084 matching the list had actually called for a host name (not very likely,
3085 since this list is usually IP addresses). A host name is now passed as
3086 "[x.x.x.x]".
3087
308814. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3089 code that specifies a non-restarting handler (typically sigaction() in
3090 modern systems) in an attempt to fix a rare and obscure crash bug.
3091
309215. Narrowed the window for a race in the daemon that could cause it to ignore
3093 SIGCHLD signals. This is not a major problem, because they are used only to
3094 wake it up if nothing else does.
3095
309616. A malformed maildirsize file could cause Exim to calculate negative values
3097 for the mailbox size or file count. Odd effects could occur as a result.
3098 The maildirsize information is now recalculated if the size or filecount
3099 end up negative.
3100
310117. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3102 support for a long time. Removed HAVE_SYS_VFS_H.
3103
ea3a6f44 310418. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3105
310619. Allow an empty sender to be matched against a lookup in an address list.
3107 Previously the only cases considered were a regular expression, or an
3108 empty pattern.
3109
311020. Exim went into a mad DNS lookup loop when doing a callout where the
3111 host was specified on the transport, if the DNS lookup yielded more than
3112 one IP address.
3113
ea3a6f44
NM
311421. The RFC2047 encoding function was originally intended for short strings
3115 such as real names; it was not keeping to the 75-character limit for
3116 encoded words that the RFC imposes. It now respects the limit, and
3117 generates multiple encoded words if necessary. To be on the safe side, I
3118 have increased the buffer size for the ${rfc2047: expansion operator from
3119 1024 to 2048 bytes.
bbe902f0 3120
ea3a6f44
NM
312122. Failure to deliver a bounce message always caused it to be frozen, even if
3122 there was an errors_to setting on the router. The errors_to setting is now
3123 respected.
bbe902f0
PH
3124
312523. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3126 canonical form (fully expanded) before being placed in
3127 $sender_host_address.
3128
312924. Updated eximstats to version 1.33
3130
ea3a6f44
NM
313125. Include certificate and key file names in error message when GnuTLS fails
3132 to set them up, because the GnuTLS error message doesn't include the name
3133 of the failing file when there is a problem reading it.
bbe902f0
PH
3134
313526. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3136 As per change 25.
bbe902f0 3137
ea3a6f44
NM
313827. Reset the locale to "C" after calling embedded Perl, in case it was changed
3139 (this can affect the format of dates).
bbe902f0 3140
ea3a6f44
NM
314128. exim_tidydb, when checking for the continued existence of a message for
3142 which it has found a message-specific retry record, was not finding
3143 messages that were in split spool directories. Consequently, it was
3144 deleting retry records that should have stayed in existence.
bbe902f0
PH
3145
314629. eximstats updated to version 1.35
3147 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3148 1.35 - bugfix such that pie charts by volume are generated correctly
3149
ea3a6f44
NM
315030. The SPA authentication driver was not abandoning authentication and moving
3151 on to the next authenticator when an expansion was forced to fail,
3152 contradicting the general specification for all authenticators. Instead it
3153 was generating a temporary error. It now behaves as specified.
bbe902f0 3154
ea3a6f44
NM
315531. The default ordering of permitted cipher suites for GnuTLS was pessimal
3156 (the order specifies the preference for clients). The order is now AES256,
3157 AES128, 3DES, ARCFOUR128.
bbe902f0 3158
ea3a6f44
NM
315931. Small patch to Sieve code - explicitly set From: when generating an
3160 autoreply.
bbe902f0 3161
ea3a6f44
NM
316232. Exim crashed if a remote delivery caused a very long error message to be
3163 recorded - for instance if somebody sent an entire SpamAssassin report back
3164 as a large number of 550 error lines. This bug was coincidentally fixed by
3165 increasing the size of one of Exim's internal buffers (big_buffer) that
3166 happened as part of the Exiscan merge. However, to be on the safe side, I
3167 have made the code more robust (and fixed the comments that describe what
3168 is going on).
bbe902f0 3169
ea3a6f44
NM
317033. Some experimental protocols are using DNS PTR records for new purposes. The
3171 keys for these records are domain names, not reversed IP addresses. The
3172 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3173 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3174 CAN-2005-0021
3175
ea3a6f44
NM
317634. The host_aton() function is supposed to be passed a string that is known
3177 to be a valid IP address. However, in the case of IPv6 addresses, it was
3178 not checking this. This is a hostage to fortune. Exim now panics and dies
3179 if the condition is not met. A case was found where this could be provoked
3180 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3181 components; fortuitously, this particular loophole had already been fixed
3182 by change 4.50/55 or 4.44/33 above.
3183
3184 If there are any other similar loopholes, the new check in host_aton()
3185 itself should stop them being exploited. The report I received stated that
3186 data on the command line could provoke the exploit when Exim was running as
3187 exim, but did not say which command line option was involved. All I could
3188 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3189 running as the user.
bbe902f0
PH
3190 CAN-2005-0021
3191
ea3a6f44
NM
319235. There was a buffer overflow vulnerability in the SPA authentication code
3193 (which came originally from the Samba project). I have added a test to the
3194 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3195 CAN-2005-0022
3196
ea3a6f44
NM
319736. The daemon start-up calls getloadavg() while still root for those OS that
3198 need the first call to be done as root, but it missed one case: when
3199 deliver_queue_load_max is set with deliver_drop_privilege. This is
3200 necessary for the benefit of the queue runner, because there is no re-exec
3201 when deliver_drop_privilege is set.
bbe902f0 3202
ea3a6f44
NM
320337. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3204 was in use, was not putting the data itself into the right store pool;
3205 consequently, it could be overwritten for a subsequent message in the same
3206 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3207 the caching.)
bbe902f0 3208
ea3a6f44
NM
320938. Sometimes the final signoff response after QUIT could fail to get
3210 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3211 < 0 before doing a fflush(). This bug looks as though it goes back to the
3212 introduction of TLS in release 3.20, but "sometimes" must have been rare
3213 because the tests only now provoked it.
bbe902f0
PH
3214
3215
495ae4b0
PH
3216Exim version 4.43
3217-----------------
3218
3219 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3220 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3221 Now it returns an integer. A number of calls were still expecting a T/F
3222 return. Fortuitously, in all cases, the tests worked in OK situations,
3223 which is the norm. However, things would have gone wrong on any write
3224 failures on the smtp file descriptor. This function is used when sending
3225 messages over SMTP and also when doing verify callouts.
3226
3227 2. When Exim is called to do synchronous delivery of a locally submitted
3228 message (the -odf or -odi options), it no longer closes stderr before doing
3229 the delivery.
3230
3231 3. Implemented the mua_wrapper option.
3232
3233 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3234
3235 5. Implemented the functions header_remove(), header_testname(),
3236 header_add_at_position(), and receive_remove_recipient(), and exported them
3237 to local_scan().
3238
3239 6. If an ACL "warn" statement specified the addition of headers, Exim already
3240 inserted X-ACL-Warn: at the start if there was no header name. However, it
3241 was not making this test for the second and subsequent header lines if
3242 there were newlines in the string. This meant that an invalid header could
3243 be inserted if Exim was badly configured.
3244
3245 7. Allow an ACL "warn" statement to add header lines at the start or after all
3246 the Received: headers, as well as at the end.
3247
3248 8. Added the rcpt_4xx retry error code.
3249
3250 9. Added postmaster_mailfrom=xxx to callout verification option.
3251
325210. Added mailfrom=xxxx to the callout verification option, for verify=
3253 header_sender only.
3254
325511. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3256 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3257
325812. Inserted some casts to stop certain compilers warning when using pointer
3259 differences as field lengths or precisions in printf-type calls (mostly
3260 affecting debugging statements).
3261
326213. Added optional readline() support for -be (dynamically loaded).
3263
326414. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3265 same clock tick as a message's arrival, so that its received time was the
3266 same as the "first fail" time on the retry record, and that message
3267 remained on the queue past the ultimate address timeout, every queue runner
3268 would try a delivery (because it was past the ultimate address timeout) but
3269 after another failure, the ultimate address timeout, which should have then
3270 bounced the address, did not kick in. This was a "< instead of <=" error;
3271 in most cases the first failure would have been in the next clock tick
3272 after the received time, and all would be well.
3273
327415. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3275 being recognized when the domain list was tested by the match_domain
3276 condition in an expansion string.
3277
327816. Added the ${str2b64: operator.
3279
328017. Exim was always calling setrlimit() to set a large limit for the number of
3281 processes, without checking whether the existing limit was already
3282 adequate. (It did check for the limit on file descriptors.) Furthermore,
3283 errors from getrlimit() and setrlimit() were being ignored. Now they are
3284 logged to the main and panic logs, but Exim does carry on, to try to do its
3285 job under whatever limits there are.
3286
328718. Imported PCRE 5.0.
3288
328919. Trivial typo in log message " temporarily refused connection" (the leading
3290 space).
3291
329220. If the log selector return_path_on_delivery was set and an address was
3293 redirected to /dev/null, the delivery process crashed because it assumed
3294 that a return path would always be set for a "successful" delivery. In this
3295 case, the whole delivery is bypassed as an optimization, and therefore no
3296 return path is set.
3297
329821. Internal re-arrangement: the function for sending a challenge and reading
3299 a response while authentication was assuming a zero-terminated challenge
3300 string. It's now changed to take a pointer and a length, to allow for
3301 binary data in such strings.
3302
330322. Added the cyrus_sasl authenticator (code supplied by MBM).
3304
330523. Exim was not respecting finduser_retries when seeking the login of the
3306 uid under which it was called; it was always trying 10 times. (The default
3307 setting of finduser_retries is zero.) Also, it was sleeping after the final
3308 failure, which is pointless.
3309
331024. Implemented tls_on_connect_ports.
3311
331225. Implemented acl_smtp_predata.
3313
331426. If the domain in control=submission is set empty, Exim assumes that the
3315 authenticated id is a complete email address when it generates From: or
3316 Sender: header lines.
3317
331827. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3319 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3320 chown and chgrp in /bin and hostname in /usr/bin.
3321
332228. Exim was keeping the "process log" file open after each use, just as it
3323 does for the main log. This opens the possibility of it remaining open for
3324 long periods when the USR1 signal hits a daemon. Occasional processlog
3325 errors were reported, that could have been caused by this. Anyway, it seems
3326 much more sensible not to leave this file open at all, so that is what now
3327 happens.
3328
332929. The long-running daemon process does not normally write to the log once it
3330 has entered its main loop, and it closes the log before doing so. This is
3331 so that log files can straightforwardly be renamed and moved. However,
3332 there are a couple of unusual error situations where the daemon does write
3333 log entries, and I had neglected to close the log afterwards.
3334
333530. The text of an SMTP error response that was received during a remote
3336 delivery was being truncated at 512 bytes. This is too short for some of
3337 the long messages that one sometimes sees. I've increased the limit to
3338 1024.
3339
334031. It is now possible to make retry rules that apply only when a message has a
3341 specific sender, in particular, an empty sender.
3342
334332. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3344 it possible to be selective about when SMTP synchronization is enforced.
3345
334633. Added "control = caseful_local_part" and "control = "caselower_local_part".
3347
334832. Implemented hosts_connection_nolog.
3349
335033. Added an ACL for QUIT.
3351
335234. Setting "delay_warning=" to disable warnings was not working; it gave a
3353 syntax error.
3354
335535. Added mailbox_size and mailbox_filecount to appendfile.
3356
335736. Added control = no_multiline_responses to ACLs.
3358
335937. There was a bug in the logic of the code that waits for the clock to tick
3360 in the case where the clock went backwards by a substantial amount such
3361 that the microsecond fraction of "now" was more than the microsecond
3362 fraction of "then" (but the whole seconds number was less).
3363
336438. Added support for the libradius Radius client library this is found on
3365 FreeBSD (previously only the radiusclient library was supported).
3366
3367
3368Exim version 4.42
3369-----------------
3370
3371 1. When certain lookups returned multiple values in the form name=value, the
3372 quoting of the values was not always being done properly. Specifically:
3373 (a) If the value started with a double quote, but contained no whitespace,
3374 it was not quoted.
3375 (b) If the value contained whitespace other than a space character (i.e.
3376 tabs or newlines or carriage returns) it was not quoted.
3377 This fix has been applied to the mysql and pgsql lookups by writing a
3378 separate quoting function and calling it from the lookup code. The fix
3379 should probably also be applied to nisplus, ibase and oracle lookups, but
3380 since I cannot test any of those, I have not disturbed their existing code.
3381
3382 2. A hit in the callout cache for a specific address caused a log line with no
3383 reason for rejecting RCPT. Now it says "Previous (cached) callout
3384 verification failure".
3385
3386 3. There was an off-by-one bug in the queryprogram router. An over-long
3387 return line was truncated at 256 instead of 255 characters, thereby
3388 overflowing its buffer with the terminating zero. As well as fixing this, I
3389 have increased the buffer size to 1024 (and made a note to document this).
3390
3391 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3392 when Exim is waiting for an SMTP response from a remote server, Exim
3393 restarts its select() call on the socket, thereby resetting its timeout.
3394 This is not a problem when such interrupts are rare. Somebody set up a cron
3395 job to run exiwhat every 2 minutes, which is less than the normal select()
3396 timeout (5 or 10 minutes). This meant that the select() timeout never
3397 kicked in because it was always reset. I have fixed this by comparing the
3398 time when an interrupt arrives with the time at the start of the first call
3399 to select(). If more time than the timeout has elapsed, the interrupt is
3400 treated as a timeout.
3401
3402 5. Some internal re-factoring in preparation for the addition of Sieve
3403 extensions (by MH). In particular, the "personal" test is moved to a
3404 separate function, and given an option for scanning Cc: and Bcc: (which is
3405 not set for Exim filters).
3406
3407 6. When Exim created an email address using the login of the caller as the
3408 local part (e.g. when creating a From: or Sender: header line), it was not
3409 quoting the local part when it contained special characters such as @.
3410
3411 7. Installed new OpenBSD configuration files.
3412
3413 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3414 try to make them clearer.
3415
3416 9. Callout options, other than the timeout value, were being ignored when
3417 verifying sender addresses in header lines. For example, when using
3418
3419 verify = header_sender/callout=no_cache
3420
3421 the cache was (incorrectly) being used.
3422
342310. Added a missing instance of ${EXE} to the exim_install script; this affects
3424 only the Cygwin environment.
3425
342611. When return_path_on_delivery was set as a log selector, if different remote
3427 addresses in the same message used different return paths and parallel
3428 remote delivery occurred, the wrong values would sometimes be logged.
3429 (Whenever a remote delivery process finished, the return path value from
3430 the most recently started remote delivery process was logged.)
3431
343212. RFC 3848 specifies standard names for the "with" phrase in Received: header
3433 lines when AUTH and/or TLS are in use. This is the "received protocol"
3434 field. Exim used to use "asmtp" for authenticated SMTP, without any
3435 indication (in the protocol name) for TLS use. Now it follows the RFC and
3436 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3437 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3438 names appear in log lines as well as in Received: header lines.
3439