Add TRUSTED_CONFIG_PREFIX_FILE option
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
5dc43717 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.632 2010/06/12 15:21:25 jetmore Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
97fd1e48 6Exim version 4.73
ed7f7860 7-----------------
97fd1e48
PP
8
9PP/01 Date: & Message-Id: revert to normally being appended to a message,
10 only prepend for the Resent-* case. Fixes regression introduced in
11 Exim 4.70 by NM/22 for Bugzilla 607.
12
6901c596
PP
13PP/02 Include check_rfc2047_length in configure.default because we're seeing
14 increasing numbers of administrators be bitten by this.
15
a8c8d6b5
JJ
16JJ/01 Added DISABLE_DKIM and comment to src/EDITME
17
77bb000f
PP
18PP/03 Bugzilla 994: added openssl_options main configuration option.
19
a29e5231
PP
20PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
21
ec5a0394 22PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 23
55c75993
PP
24PP/06 Adjust NTLM authentication to handle SASL Initial Response.
25
453a6645 26PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
27 without a peer certificate, leading to a segfault because of an
28 assumption that peers always have certificates. Be a little more
453a6645
PP
29 paranoid. Problem reported by Martin Tscholak.
30
8544e77a
PP
31PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
32 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
33 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
34 CL also introduces -bmalware, various -d+acl logging additions and
35 more caution in buffer sizes.
8544e77a 36
83e029d5
PP
37PP/09 Implemented reverse_ip expansion operator.
38
ed7f7860
PP
39PP/10 Bugzilla 937: provide a "debug" ACL control.
40
7d9f747b
PP
41PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
42
4b2241d2
PP
43PP/12 Bugzilla 973: Implement --version.
44
10385c15
PP
45PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
46
dbc4b90d
PP
47PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
48
532be449
PP
49PP/15 Bugzilla 816: support multiple condition rules on Routers.
50
6a8de854 51PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
52 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
53 ignore trailing whitespace.
6a8de854 54
5dc43717
JJ
55JJ/02 prevent non-panic DKIM error from being sent to paniclog
56
57JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
58 "exim" to be used
55c75993 59
3346ab01
PP
60PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
61 Notification from Dr Andrew Aitchison.
62
491fab4c
PP
63PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
64 ExtendedDetectionInfo response format.
65 Notification from John Horne.
66
13eb9497
PP
67PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
68 compatible.
69
70PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
71 XSL and documented dependency on system catalogs, with examples of how
72 it normally works.
73
7f36d675
DW
74DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
75 access.
76
c1d94452
DW
77DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
78 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
79 configuration file which is writeable by the Exim user or group.
80
e2f5dc15
DW
81DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
82 of configuration files to cover files specified with the -C option if
83 they are going to be used with root privileges, not just the default
84 configuration file.
85
cd25e41d
DW
86DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
87 option (effectively making it always true).
88
261dc43e
DW
89DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
90 files to be used while preserving root privileges.
91
3346ab01 92
465e92cf
JJ
93Exim version 4.72
94-----------------
95
453a6645
PP
96JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
97 $data_path, and $header_path variables; fixed documentation bugs and
98 typos
465e92cf 99
453a6645
PP
100JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
101 exipick to access non-standard spools, including the "frozen" queue
102 (Finput)
edae0343 103
9bd3e22c
NM
104NM/01 Bugzilla 965: Support mysql stored procedures.
105 Patch from Alain Williams
106
bb576ff7
NM
107NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
108
5a1a5845
NM
109NM/03 Bugzilla 955: Documentation fix for max_rcpts.
110 Patch from Andreas Metzler
111
981a9fad
NM
112NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
113 Patch from Kirill Miazine
114
7fc497ee
NM
115NM/05 Bugzilla 671: Added umask to procmail example.
116
1a41defa
JJ
117JJ/03 installed exipick 20100323.0, fixing doc bug
118
a466095c 119NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 120 directory. Notification and patch from Dan Rosenberg.
a466095c 121
94a6bd0b
NM
122TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
123
124TK/02 Improve log output when DKIM signing operation fails.
125
126MH/01 Treat the transport option dkim_domain as a colon separated
127 list, not as a single string, and sign the message with each element,
128 omitting multiple occurences of the same signer.
129
c1b141a8
NM
130NM/07 Null terminate DKIM strings, Null initialise DKIM variable
131 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 132
b26eacf1 133NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
134 Patch by Simon Arlott
135
179c5980 136PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 137 MBX locking. Notification from Dan Rosenberg.
179c5980 138
9bd3e22c 139
7c6d71af
NM
140Exim version 4.71
141-----------------
142
7d9f747b 143TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 144
f013fb92
NM
145NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
146
0eb8eedd
NM
147NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
148
663ee6d9
NM
149NM/03 Bugzilla 847: Enable DNSDB lookup by default.
150
177ebd9b
NM
151NM/04 Bugzilla 915: Flag broken perl installation during build.
152
7c6d71af 153
210f147e
NM
154Exim version 4.70
155-----------------
156
cdd3bb85 157TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 158 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
159
160TK/02 Write list of recipients to X-Envelope-Sender header when building
161 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 162 Hirsch).
cdd3bb85
TK
163
164TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
165 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 166 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
167
168TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
169 by Mark Daniel Reidel <mr@df.eu>.
170
210f147e
NM
171NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
172 When building exim an external PCRE library is now needed -
173 PCRE is a system library on the majority of modern systems.
174 See entry on PCRE_LIBS in EDITME file.
175
deafd5b3
NM
176NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
177 conversation. Added nologin parameter to request.
7d9f747b 178 Patch contributed by Kirill Miazine.
deafd5b3 179
089793a4
TF
180TF/01 Do not log submission mode rewrites if they do not change the address.
181
5f16ca82
TF
182TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
183
dae9d94e 184NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 185 log files in place. Contributed by Roberto Lima.
dae9d94e 186
7d9f747b 187NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 188
06864c44
TF
189TF/03 Bugzilla 615: When checking the local_parts router precondition
190 after a local_part_suffix or local_part_prefix option, Exim now
191 does not use the address's named list lookup cache, since this
192 contains cached lookups for the whole local part.
193
65a7d8c3 194NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 195 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 196
23510047 197TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 198
7d9f747b 199NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 200
7d8eec3a 201NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 202 Patch provided by Jan Srzednicki.
6c588e74 203
89dec7b6
TF
204TF/05 Leading white space used to be stripped from $spam_report which
205 wrecked the formatting. Now it is preserved.
5f28a6e8 206
a99de90c
TF
207TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
208 that they are available at delivery time.
209
e2803e40
TF
210TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
211
7199e1ee
TF
212TF/08 TLS error reporting now respects the incoming_interface and
213 incoming_port log selectors.
214
e276e04b
TF
215TF/09 Produce a more useful error message if an SMTP transport's hosts
216 setting expands to an empty string.
217
ce552449 218NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 219 Patch provided by Phil Pennock.
ce552449 220
e765a0f1 221NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 222 Patch provided by Richard Godbee.
e765a0f1 223
4f054c63 224NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 225 acl_smtp_notquit, added index entry.
4f054c63 226
7d9f747b
PP
227NM/09 Bugzilla 787: Potential buffer overflow in string_format.
228 Patch provided by Eugene Bujak.
24c929a2 229
7d9f747b
PP
230NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
231 accept(). Patch provided by Maxim Dounin.
cf73943b 232
b52bc06e 233NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 234 Patch provided by Phil Pennock.
b52bc06e 235
447de4b0
NM
236NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
237
4c69d561 238NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 239 Patch provided by Brad "anomie" Jorsch.
4c69d561 240
d5c39246 241NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 242 Patch provided by Dean Brooks.
9b989985 243
0b23848a
TK
244TK/05 Add native DKIM support (does not depend on external libraries).
245
8f3414a1 246NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 247 Patch provided by Graeme Fowler.
e2aacdfd 248
fb6f955d
NM
249NM/16 Bugzilla 851: Documentation example syntax fix.
250
251NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 252
7d9f747b
PP
253NM/18 Bugzilla 894: Fix issue with very long lines including comments in
254 lsearch.
dbb0bf41 255
7d9f747b
PP
256NM/19 Bugzilla 745: TLS version reporting.
257 Patch provided by Phil Pennock.
f3766eb5 258
7d9f747b
PP
259NM/20 Bugzilla 167: bool: condition support.
260 Patch provided by Phil Pennock.
36f12725 261
7d9f747b
PP
262NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
263 clients. Patch provided by Phil Pennock.
e6060e2c 264
7d9f747b
PP
265NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
266 Patch provided by Brad "anomie" Jorsch.
5eb690a1 267
7d9f747b
PP
268NM/23 Bugzilla 687: Fix misparses in eximstats.
269 Patch provided by Heiko Schlittermann.
d5c13d66 270
7d9f747b
PP
271NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
272 Patch provided by Heiko Schlittermann.
b2335c0b 273
7d9f747b 274NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 275 plus update to original patch.
f4cd9433 276
7d9f747b 277NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 278
7d9f747b
PP
279NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
280 Patch provided by David Brownlee.
8dc71ab3 281
7d9f747b 282NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 283
7d9f747b 284NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 285
7d9f747b 286NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 287
7d9f747b 288NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 289
17792b53 290NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 291 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 292
7d9f747b
PP
293NM/33 Bugzilla 898: Transport filter timeout fix.
294 Patch by Todd Rinaldo.
52383f8f 295
7d9f747b
PP
296NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
297 Patch by Serge Demonchaux.
5ca6d115 298
7d9f747b
PP
299NM/35 Bugzilla 39: Base64 decode bug fixes.
300 Patch by Jakob Hirsch.
baee9eee 301
7d9f747b 302NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 303
7d9f747b 304NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 305
7d9f747b 306NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 307
7d9f747b 308NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 309
deafd5b3 310
47db1125
NM
311Exim version 4.69
312-----------------
313
4b3504d0
TK
314TK/01 Add preliminary DKIM support. Currently requires a forked version of
315 ALT-N's libdkim that I have put here:
316 http://duncanthrax.net/exim-experimental/
317
318 Note to Michael Haardt: I had to rename some vars in sieve.c. They
319 were called 'true' and it seems that C99 defines that as a reserved
320 keyword to be used with 'bool' variable types. That means you could
321 not include C99-style headers which use bools without triggering
322 build errors in sieve.c.
323
81ea09ca
NM
324NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
325 as mailq or other aliases. Changed the --help handling significantly
326 to do whats expected. exim_usage() emits usage/help information.
327
f13cddcb
SC
328SC/01 Added the -bylocaldomain option to eximstats.
329
7d9f747b 330NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 331
7d9f747b 332NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 333
7d9f747b 334NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
335
336
eb4c0de6
PH
337Exim version 4.68
338-----------------
339
340PH/01 Another patch from the Sieve maintainer.
341
6a3bceb1
PH
342PH/02 When an IPv6 address is converted to a string for single-key lookup
343 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
344 dots are used instead of colons so that keys in lsearch files need not
345 contain colons. This was done some time before quoting was made available
346 in lsearch files. However, iplsearch files do require colons in IPv6 keys
347 (notated using the quote facility) so as to distinguish them from IPv4
348 keys. This meant that lookups for IP addresses in host lists did not work
349 for iplsearch lookups.
350
351 This has been fixed by arranging for IPv6 addresses to be expressed with
352 colons if the lookup type is iplsearch. This is not incompatible, because
353 previously such lookups could never work.
354
355 The situation is now rather anomolous, since one *can* have colons in
356 ordinary lsearch keys. However, making the change in all cases is
357 incompatible and would probably break a number of configurations.
358
2e30fa9d
TK
359TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
360 version.
361
0806a9c5
MH
362MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
363 conversion specification without a maximum field width, thereby enabling
364 a rogue spamd server to cause a buffer overflow. While nobody in their
365 right mind would setup Exim to query an untrusted spamd server, an
366 attacker that gains access to a server running spamd could potentially
367 exploit this vulnerability to run arbitrary code as the Exim user.
368
ae276964
TK
369TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
370 $primary_hostname instead of what libspf2 thinks the hosts name is.
371
0f2cbd1b
MH
372MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
373 a directory entry by the name of the lookup key. Previously, if a
374 symlink pointed to a non-existing file or a file in a directory that
375 Exim lacked permissions to read, a lookup for a key matching that
376 symlink would fail. Now it is enough that a matching directory entry
377 exists, symlink or not. (Bugzilla 503.)
378
2b85bce7
PH
379PH/03 The body_linecount and body_zerocount variables are now exported in the
380 local_scan API.
381
93655c46
PH
382PH/04 Added the $dnslist_matched variable.
383
6c512171
PH
384PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
385 This means they are set thereafter only if the connection becomes
386 encrypted.
387
388PH/06 Added the client_condition to authenticators so that some can be skipped
389 by clients under certain conditions.
390
aa6dc513
PH
391PH/07 The error message for a badly-placed control=no_multiline_responses left
392 "_responses" off the end of the name.
393
a96603a0
PH
394PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
395
8f240103
PH
396PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
397 (without spaces) instead of just copying the configuration text.
398
399PH/10 Added the /noupdate option to the ratelimit ACL condition.
400
d677b2f2
PH
401PH/11 Added $max_received_linelength.
402
d52120f2
PH
403PH/12 Added +ignore_defer and +include_defer to host lists.
404
64f2600a
PH
405PH/13 Installed PCRE version 7.2. This needed some changes because of the new
406 way in which PCRE > 7.0 is built.
407
8669f003
PH
408PH/14 Implemented queue_only_load_latch.
409
a4dc33a8
PH
410PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
411 MAIL command. The effect was to mangle the value on 64-bit systems.
412
d6a60c0f
PH
413PH/16 Another patch from the Sieve maintainer.
414
8f128379
PH
415PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
416
8932dffe
PH
417PH/18 If a system quota error occurred while trying to create the file for
418 a maildir delivery, the message "Mailbox is full" was not appended to the
419 bounce if the delivery eventually timed out. Change 4.67/27 below applied
420 only to a quota excession during the actual writing of the file.
d6a60c0f 421
ddea74fa 422PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
423 characters?) which causes problems in log lines. The DN values are now
424 passed through string_printing() before being added to log lines.
425
ddea74fa 426PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
427 and InterBase are left for another time.)
428
ddea74fa
PH
429PH/21 Added message_body_newlines option.
430
ce9f225c
PH
431PH/22 Guard against possible overflow in moan_check_errorcopy().
432
19897d52
PH
433PH/23 POSIX allows open() to be a macro; guard against that.
434
bc64a74d
PH
435PH/24 If the recipient of an error message contained an @ in the local part
436 (suitably quoted, of course), incorrect values were put in $domain and
437 $local_part during the evaluation of errors_copy.
438
eb4c0de6 439
b4ed4da0
PH
440Exim version 4.67
441-----------------
442
22ad45c9
MH
443MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
444 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
445 Jan Srzednicki.
446
b4ed4da0
PH
447PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
448 issue a MAIL command.
449
431b7361
PH
450PH/02 In an ACL statement such as
451
452 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
453
454 if a client was not listed at all, or was listed with a value other than
455 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
456 the condition was not true (as it should be), so access was not denied.
457 The bug was that the ! inversion was incorrectly passed on to the second
458 item. This has been fixed.
459
460PH/03 Added additional dnslists conditions == and =& which are different from
461 = and & when the dns lookup returns more than one IP address.
462
83da1223
PH
463PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
464 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
465
54fc8428
PH
466PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
467 FSYNC, which compiles an option called disable_fsync that allows for
468 bypassing fsync(). The documentation is heavily laced with warnings.
469
34c5e8dd
SC
470SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
471
bbe15da8
PH
472PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
473 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
474 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
475 including adding "make clean"; (3) Added -fPIC when compiling the test
476 dynamically loaded module, to get rid of a warning.
477
0e8a9471
MH
478MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
479 message fails, move_frozen_messages = true and ignore_bounce_errors_after
480 = 0s. The bug is otherwise harmless.
481
f0872424
PH
482PH/07 There was a bug in the dovecot authenticator such that the value of
483 $auth1 could be overwritten, and so not correctly preserved, after a
484 successful authentication. This usually meant that the value preserved by
485 the server_setid option was incorrect.
486
b01dd148
PH
487PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
488
6bf342e1
PH
489PH/09 Installed PCRE release 7.0.
490
273f34d0
PH
491PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
492 run for batched SMTP input. It is now run at the start of every message
493 in the batch. While fixing this I discovered that the process information
494 (output by running exiwhat) was not always getting set for -bs and -bS
495 input. This is fixed, and it now also says "batched" for BSMTP.
496
cf8b11a5
PH
497PH/11 Added control=no_pipelining.
498
41c7c167
PH
499PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
500 patch, slightly modified), and move the expansion of helo_data till after
501 the connection is made in the smtp transport (so it can use these
502 values).
503
9c57cbc0
PH
504PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
505
f3f065bb
PH
506PH/14 Added log_selector = +pid.
507
047bdd8c
PH
508PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
509
0ce9abe6
PH
510PH/16 Add ${if forany and ${if forall.
511
0e22dfd1
PH
512PH/17 Added dsn_from option to vary the From: line in DSNs.
513
4c590bd1
PH
514PH/18 Flush SMTP output before performing a callout, unless control =
515 no_callout_flush is set.
516
09945f1e
PH
517PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
518 was true (the default) a successful delivery failed to delete the retry
519 item, thus causing premature timeout of the address. The bug is now
520 fixed.
521
c51b8e75
PH
522PH/20 Added hosts_avoid_pipelining to the smtp transport.
523
e28326d8
PH
524PH/21 Long custom messages for fakedefer and fakereject are now split up
525 into multiline reponses in the same way that messages for "deny" and
526 other ACL rejections are.
527
75b1493f
PH
528PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
529 with slight modification.
530
7c5214ec
PH
531PH/23 Applied sieve patches from the maintainer "tracking the latest notify
532 draft, changing the syntax and factoring some duplicate code".
533
4311097e
PH
534PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
535 for deliveries of the second and subsequent messages over the same SMTP
536 connection.
537
29f89cad
PH
538PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
539 ${reduce, with only minor "tidies".
540
5e687460
SC
541SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
542
c3611384
PH
543PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
544 expansion side effects.
545
5a11a7b4
PH
546PH/27 When a message times out after an over-quota error from an Exim-imposed
547 quota, the bounce message says "mailbox is full". This message was not
548 being given when it was a system quota that was exceeded. It now should
549 be the same.
550
0e20aff9
MH
551MH/03 Made $recipients available in local_scan(). local_scan() already has
552 better access to the recipient list through recipients_list[], but
553 $recipients can be useful in postmaster-provided expansion strings.
554
ca86f471
PH
555PH/28 The $smtp_command and $smtp_command_argument variables were not correct
556 in the case of a MAIL command with additional options following the
557 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
558 were accidentally chopped off.
559
a14e5636
PH
560PH/29 SMTP synchronization checks are implemented when a command is read -
561 there is a check that no more input is waiting when there shouldn't be
562 any. However, for some commands, a delay in an ACL can mean that it is
563 some time before the response is written. In this time, more input might
564 arrive, invalidly. So now there are extra checks after an ACL has run for
565 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
566 pipelining has not been advertised.
567
ec95d1a6
PH
568PH/30 MH's patch to allow iscntrl() characters to be list separators.
569
42855d71
PH
570PH/31 Unlike :fail:, a custom message specified with :defer: was not being
571 returned in the SMTP response when smtp_return_error_details was false.
572 This has been fixed.
573
57c2c631
PH
574PH/32 Change the Dovecot authenticator to use read() and write() on the socket
575 instead of the C I/O that was originally supplied, because problems were
576 reported on Solaris.
577
58c01c94
PH
578PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
579 Exim which did not show up earlier: it was assuming that a call to
580 SSL_CTX_set_info_callback() might give an error value. In fact, there is
581 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
582 was a macro that became an assignment, so it seemed to work. This has
583 changed to a proper function call with a void return, hence the compile
584 error. Exim's code has been fixed.
585
dee5a20a
PH
586PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
587 cpus.
588
d2ee6114
PH
589PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
590
b2d5182b
PH
591PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
592
79749a79
PH
593PH/37 If a message is not accepted after it has had an id assigned (e.g.
594 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
595 "Completed" line in the log. When some messages of this type were
596 selected by exigrep, they were listed as "not completed". Others were
597 picked up by some special patterns. I have improved the selection
598 criteria to be more general.
79749a79 599
c456d9bb
PH
600PH/38 The host_find_failed option in the manualroute router can now be set
601 to "ignore", to completely ignore a host whose IP address cannot be
602 found. If all hosts are ignored, the behaviour is controlled by the new
603 host_all_ignored option.
604
cd9868ec
PH
605PH/39 In a list of hosts for manualroute, if one item (either because of multi-
606 homing or because of multiple MX records with /mx) generated more than
607 one IP address, and the following item turned out to be the local host,
608 all the secondary addresses of the first item were incorrectly removed
609 from the list, along with the local host and any following hosts (which
610 is what is supposed to happen).
611
ebeaf996
PH
612PH/40 When Exim receives a message, it writes the login name, uid, and gid of
613 whoever called Exim into the -H file. In the case of the daemon it was
614 behaving confusingly. When first started, it used values for whoever
615 started the daemon, but after a SIGHUP it used the Exim user (because it
616 calls itself on a restart). I have changed the code so that it now always
617 uses the Exim user.
618
2679d413
PH
619PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
620 message are rejected with the same error (e.g. no authentication or bad
621 sender address), and a DATA command is nevertheless sent (as can happen
622 with PIPELINING or a stupid MUA), the error message that was given to the
623 RCPT commands is included in the rejection of the DATA command. This is
624 intended to be helpful for MUAs that show only the final error to their
625 users.
626
84024b72
PH
627PH/42 Another patch from the Sieve maintainer.
628
8005d38e
SC
629SC/02 Eximstats - Differentiate between permanent and temporary rejects.
630 Eximstats - Fixed some broken HTML links and added missing column headers
631 (Jez Hancock).
632 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
633 columns for Rejects, Temp Rejects, Ham, and Spam rows.
634
3298c6c6
SC
635SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
636
a43a27c5
PH
637PH/43 Yet another patch from the Sieve maintainer.
638
58eb016e 639PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
640 the response to the final '.' that terminates a message, but only in the
641 case where the client has not sent further data following the '.'
642 (unfortunately, this is allowed). However, in many cases there won't be
643 any further data because there won't be any more messages to send. A call
644 to select() can be used: if it shows that the input is "ready", there is
645 either input waiting, or the socket has been closed. An attempt to read
646 the next input character can distinguish the two cases. Previously, Exim
58eb016e 647 would have sent an OK response which the client would never have see.
563b63fa
PH
648 This could lead to message repetition. This fix should cure that, at
649 least in a lot of common cases.
58eb016e 650
b43a74ea
PH
651PH/45 Do not advertise STARTTLS in response to HELP unless it would be
652 advertised in response to EHLO.
653
b4ed4da0 654
5dd1517f
PH
655Exim version 4.66
656-----------------
657
658PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
659 fixed by 4.65/MH/01 (is this a record?) are fixed:
660
661 (i) An empty string was always treated as zero by the numeric comparison
662 operators. This behaviour has been restored.
663
664 (ii) It is documented that the numeric comparison operators always treat
665 their arguments as decimal numbers. This was broken in that numbers
666 starting with 0 were being interpreted as octal.
667
668 While fixing these problems I realized that there was another issue that
669 hadn't been noticed. Values of message_size_limit (both the global option
670 and the transport option) were treated as octal if they started with 0.
671 The documentation was vague. These values are now always treated as
672 decimal, and I will make that clear in the documentation.
673
674
93cfa765
TK
675Exim version 4.65
676-----------------
677
678TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
679 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
680 versions. (#438)
681
d6066548
MH
682MH/01 Don't check that the operands of numeric comparison operators are
683 integers when their expansion is in "skipping" mode (fixes bug
684 introduced by 4.64-PH/07).
685
4362ff0d
PH
686PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
687 child addresses, Exim now panics and dies. Previously, because the count
688 is held in a short int, deliveries were likely to be lost. As such a
689 large number of recipients for a single message is ridiculous
690 (performance will be very, very poor), I have chosen to impose a limit
691 rather than extend the field.
692
93cfa765 693
944e9e9c
TF
694Exim version 4.64
695-----------------
aa41d2de 696
21d74bd9
TK
697TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
698 leftover -K file (the existence of which was triggered by #402).
699 While we were at it, introduced process PID as part of the -K
700 filename. This should rule out race conditions when creating
701 these files.
702
703TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
704 processing considerably. Previous code took too long for large mails,
705 triggering a timeout which in turn triggers #401.
706
707TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
708 in the DK code in transports.c. sendfile() is not really portable,
709 hence the _LINUX specificness.
944e9e9c
TF
710
711TF/01 In the add_headers option to the mail command in an Exim filter,
712 there was a bug that Exim would claim a syntax error in any
713 header after the first one which had an odd number of characters
714 in the field name.
715
2b1c6e3a
PH
716PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
717 callout verification, Exim cached a "reject" for the entire domain. This
718 is correct for most verifications, but it is not correct for a recipient
719 verification with use_sender or use_postmaster set, because in that case
720 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
721 case of MAIL FROM:<> rejection from other early rejections (e.g.
722 rejection of HELO). When verifying a recipient using a non-null MAIL
723 address, the cache is ignored if it shows MAIL FROM:<> rejection.
724 Whatever the result of the callout, the value of the domain cache is
725 left unchanged (for any other kind of callout, getting as far as trying
726 RCPT means that the domain itself is ok).
727
1f872c80
PH
728PH/02 Tidied a number of unused variable and signed/unsigned warnings that
729 gcc 4.1.1 threw up.
730
731PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
732 manifest itself as EPIPE rather than ECONNECT. When tidying away a
733 session, the daemon ignores ECONNECT errors and logs others; it now
734 ignores EPIPE as well.
735
d203e649
PH
736PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
737 (quoted-printable decoding).
738
cc2ed8f7 739PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 740 later the small subsequent patch to fix an introduced bug.
f951fd57 741
ddfcd446
PH
742PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
743
d45b1de8
PH
744PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
745
746PH/08 An error is now given if message_size_limit is specified negative.
747
38a0a95f 748PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 749 to be given (somewhat) arbitrary names.
38a0a95f 750
a2405d83
JJ
751JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
752 in 4.64-PH/09.
753
754JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
755 miscellaneous code fixes
756
6ea85e9a
PH
757PH/10 Added the log_reject_target ACL modifier to specify where to log
758 rejections.
759
26da7e20
PH
760PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
761 hostname. This is wrong, because it relates to the incoming message (and
762 probably the interface on which it is arriving) and not to the outgoing
763 callout (which could be using a different interface). This has been
764 changed to use the value of the helo_data option from the smtp transport
765 instead - this is what is used when a message is actually being sent. If
766 there is no remote transport (possible with a router that sets up host
767 addresses), $smtp_active_hostname is used.
6ea85e9a 768
14aa5a05 769PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 770 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
771 (a) The code assumed that strncpy() returns a negative number on buffer
772 overflow, which isn't the case. Replaced with Exim's string_format()
773 function.
774 (b) There were several signed/unsigned issues. I just did the minimum
775 hacking in of casts. There is scope for a larger refactoring.
776 (c) The code used strcasecmp() which is not a standard C function.
777 Replaced with Exim's strcmpic() function.
778 (d) The code set only $1; it now sets $auth1 as well.
779 (e) A simple test gave the error "authentication client didn't specify
780 service in request". It would seem that Dovecot has changed its
781 interface. Fortunately there's a specification; I followed it and
782 changed what the client sends and it appears to be working now.
783
ff75a1f7
PH
784PH/13 Added $message_headers_raw to provide the headers without RFC 2047
785 decoding.
786
e6f6568e
PH
787PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
788 address A is aliased to B and C, where B exists and C does not. Without
789 -v the output is "A verified" because verification stops after a
790 successful redirection if more than one address is generated. However,
791 with -v the child addresses are also verified. Exim was outputting "A
792 failed to verify" and then showing the successful verification for C,
793 with its parentage. It now outputs "B failed to verify", showing B's
794 parentage before showing the successful verification of C.
795
d6f6e0dc
PH
796PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
797 look up a TXT record in a specific list after matching in a combined
798 list.
799
322050c2
PH
800PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
801 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
802 they consult the DNS. I had assumed they would set it the way they
803 wanted; and indeed my experiments on Linux seem to show that in some
804 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
805 To be on the safe side, however, I have now made the interface to
806 host_find_byname() similar to host_find_bydns(), with an argument
807 containing the DNS resolver options. The host_find_byname() function now
808 sets these options at its start, just as host_find_bydns() does. The smtp
809 transport options dns_qualify_single and dns_search_parents are passed to
810 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
811 of host_find_byname() use the default settings of RES_DEFNAMES
812 (qualify_single) but not RES_DNSRCH (search_parents).
813
08955dd3
PH
814PH/17 Applied (a modified version of) Nico Erfurth's patch to make
815 spool_read_header() do less string testing, by means of a preliminary
816 switch on the second character of optional "-foo" lines. (This is
817 overdue, caused by the large number of possibilities that now exist.
818 Originally there were few.) While I was there, I also converted the
819 str(n)cmp tests so they don't re-test the leading "-" and the first
820 character, in the hope this might squeeze out yet more improvement.
821
1eccaa59
PH
822PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
823 flag allowing group syntax was set by the header_syntax check but not
824 turned off, possible causing trouble later; (2) The flag was not being
825 set at all for the header_verify test, causing "group"-style headers to
826 be rejected. I have now set it in this case, and also caused header_
827 verify to ignore an empty address taken from a group. While doing this, I
828 came across some other cases where the code for allowing group syntax
829 while scanning a header line wasn't quite right (mostly, not resetting
830 the flag correctly in the right place). These bugs could have caused
831 trouble for malformed header lines. I hope it is now all correct.
832
602e59e5
PH
833PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
834 with the "reply" argument non-NULL. The code, however (which originally
835 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
836 but it didn't always do it. This confused somebody who was copying the
837 code for some other use. I have removed all the tests.
838
411ef850
PH
839PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
840 feature that was used to support insecure browsers during the U.S. crypto
841 embargo. It requires special client support, and Exim is probably the
842 only MTA that supported it -- and would never use it because real RSA is
843 always available. This code has been removed, because it had the bad
844 effect of slowing Exim down by computing (never used) parameters for the
845 RSA_EXPORT functionality.
846
7befa435
PH
847PH/21 On the advice of Timo Sirainen, added a check to the dovecot
848 authenticator to fail if there's a tab character in the incoming data
849 (there should never be unless someone is messing about, as it's supposed
850 to be base64-encoded). Also added, on Timo's advice, the "secured" option
851 if the connection is using TLS or if the remote IP is the same as the
852 local IP, and the "valid-client-cert option" if a client certificate has
853 been verified.
854
48da4259 855PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
856 authenticators. This can be used for authorization after authentication
857 succeeds. (In the case of plaintext, it servers for both authentication
858 and authorization.)
859
48da4259
PH
860PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
861 if any retry times were supplied.
862
d1d5595c
PH
863PH/24 Exim crashed if verify=helo was activated during an incoming -bs
864 connection, where there is no client IP address to check. In this
865 situation, the verify now always succeeds.
866
0ef732d9
PH
867PH/25 Applied John Jetmore's -Mset patch.
868
328895cc
PH
869PH/26 Added -bem to be like -Mset, but loading a message from a file.
870
fd700877
PH
871PH/27 In a string expansion for a processed (not raw) header when multiple
872 headers of the same name were present, leading whitespace was being
873 removed from all of them, but trailing whitespace was being removed only
874 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
875 before concatenation. Completely empty headers in a concatenation (as
876 before) are ignored.
fd700877 877
8dce1a6f
PH
878PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
879 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
880
17af4a17
PH
881PH/29 [Removed. This was a change that I later backed out, and forgot to
882 correct the ChangeLog entry (that I had efficiently created) before
883 committing the later change.]
f6c332bd
PH
884
885PH/30 Exim was sometimes attempting to deliver messages that had suffered
886 address errors (4xx response to RCPT) over the same connection as other
887 messages routed to the same hosts. Such deliveries are always "forced",
888 so retry times are not inspected. This resulted in far too many retries
889 for the affected addresses. The effect occurred only when there were more
890 hosts than the hosts_max_try setting in the smtp transport when it had
891 the 4xx errors. Those hosts that it had tried were not added to the list
892 of hosts for which the message was waiting, so if all were tried, there
893 was no problem. Two fixes have been applied:
894
895 (i) If there are any address or message errors in an SMTP delivery, none
896 of the hosts (tried or untried) are now added to the list of hosts
897 for which the message is waiting, so the message should not be a
898 candidate for sending over the same connection that was used for a
899 successful delivery of some other message. This seems entirely
900 reasonable: after all the message is NOT "waiting for some host".
901 This is so "obvious" that I'm not sure why it wasn't done
902 previously. Hope I haven't missed anything, but it can't do any
903 harm, as the worst effect is to miss an optimization.
904
905 (ii) If, despite (i), such a delivery is accidentally attempted, the
906 routing retry time is respected, so at least it doesn't keep
907 hammering the server.
908
c1114884
PH
909PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
910 in ${readsocket because some servers need this prod.
911
7a0743eb
PH
912PH/32 Added some extra debug output when updating a wait-xxx database.
913
0d85fa3f
PH
914PH/33 The hint "could be header name not terminated by colon", which has been
915 given for certain expansion errors for a long time, was not being given
916 for the ${if def:h_colon_omitted{... case.
917
1bf43b78
PH
918PH/34 The spec says: "With one important exception, whenever a domain list is
919 being scanned, $domain contains the subject domain." There was at least
920 one case where this was not true.
921
520de300
PH
922PH/35 The error "getsockname() failed: connection reset by peer" was being
923 written to the panic log as well as the main log, but it isn't really
924 panic-worthy as it just means the connection died rather early on. I have
925 removed the panic log writing for the ECONNRESET error when getsockname()
926 fails.
927
48c7f9e2
PH
928PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
929 runs only) independently of the message's sender address. This meant
930 that, if the 4xx error was in fact related to the sender, a different
931 message to the same recipient with a different sender could confuse
932 things. In particualar, this can happen when sending to a greylisting
933 server, but other circumstances could also provoke similar problems.
934 I have changed the default so that the retry time for these errors is now
935 based a combination of the sender and recipient addresses. This change
936 can be overridden by setting address_retry_include_sender=false in the
937 smtp transport.
938
99ea1c86
PH
939PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
940 remote server are returned as part of bounce messages. This was not
941 happening for LMTP over a pipe (the lmtp transport), but now it is the
942 same for both kinds of LMTP.
943
a2042e78
PH
944PH/38 Despite being documented as not happening, Exim was rewriting addresses
945 in header lines that were in fact CNAMEs. This is no longer the case.
946
4fbcfc2e
PH
947PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
948 and queue runs started by the daemon processed all messages. This has
949 been fixed so that -R and -S can now usefully be given with -q<time>.
950
aa41d2de
PH
951PH/40 Import PCRE release 6.7 (fixes some bugs).
952
af561417
PH
953PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
954
3cc66b45
PH
955PH/42 Give an error if -q is specified more than once.
956
194cc0e4
PH
957PH/43 Renamed the variables $interface_address and $interface_port as
958 $received_ip_address and $received_port, to make it clear that these
959 values apply to message reception, and not to the outgoing interface when
960 a message is delivered. (The old names remain recognized, of course.)
961
a401ddaa
PH
962PH/44 There was no timeout on the connect() call when using a Unix domain
963 socket in the ${readsocket expansion. There now is.
964
4e88a19f
PH
965PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
966 be meaningful with "accept".
967
d7d7b289
SC
968SC/01 Eximstats V1.43
969 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
970
971SC/02 Eximstats V1.44
972 Use a glob alias rather than an array ref in the generated
973 parser. This improves both readability and performance.
974
975SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
976 Collect SpamAssassin and rejection statistics.
977 Don't display local sender or destination tables unless
978 there is data to show.
979 Added average volumes into the top table text output.
980
981SC/04 Eximstats V1.46
982 Collect data on the number of addresses (recipients)
983 as well as the number of messages.
984
985SC/05 Eximstats V1.47
986 Added 'Message too big' to the list of mail rejection
987 reasons (thanks to Marco Gaiarin).
988
989SC/06 Eximstats V1.48
990 Mainlog lines which have GMT offsets and are too short to
991 have a flag are now skipped.
992
993SC/07 Eximstats V1.49 (Alain Williams)
994 Added the -emptyok flag.
995
996SC/08 Eximstats V1.50
997 Fixes for obtaining the IP address from reject messages.
998
0ea2a468
JJ
999JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1000 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1001 whitesspace changes from 4.64-PH/27
1002
1003JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1004 match 4.64-PH/13
1005
1006JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1007 are found, allow negative numbers in numeric criteria)
1008
1009JJ/06 exipick.20061117.2, added new $message_body_missing variable
1010
1011JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1012 to match changes made in 4.64-PH/43
1013
8a10f5a4
PH
1014PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1015
30e18802
PH
1016PH/47 Put in an explicit test for a DNS lookup of an address record where the
1017 "domain" is actually an IP address, and force a failure. This locks out
1018 those revolvers/nameservers that support "A-for-A" lookups, in
1019 contravention of the specifications.
1020
55728a4f
PH
1021PH/48 When a host name was looked up from an IP address, and the subsequent
1022 forward lookup of the name timed out, the host name was left in
1023 $sender_host_name, contrary to the specification.
d7d7b289 1024
d7837193
PH
1025PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1026 restricted to single-key lookups, Exim was not diagnosing an error if
1027 * or *@ was used with a query-style lookup.
1028
87054a31
PH
1029PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1030
ea2c01d2
MH
1031MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1032 long ago, but noone interested enough thought of it. Let's just say that
1033 the "1.1" means that there are some new functions that weren't there at
1034 some point in the past.
1035
e4fa6968
PH
1036PH/51 Error processing for expansion failure of helo_data from an smtp
1037 transport during callout processing was broken.
1038
56f5d9bd
PH
1039PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1040 tested/used via the -bh/-bhc/-bs options.
1041
922e1c28
PH
1042PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1043 bug, fixed in subsequent PCRE releases).
1044
21eb6e72
PH
1045PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1046 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1047
a0540757
PH
1048PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1049
944e9e9c 1050
478be7b0
SC
1051Exim version 4.63
1052-----------------
1053
1054SC/01 Use a glob alias rather than an array ref in eximstats generated
1055 parser. This improves both readability and performance.
1056
1057SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1058 Don't display local sender or destination tables in eximstats unless
1059 there is data to show.
1060 Added average volumes into the eximstats top table text output.
1061
1062SC/03 Collect data on the number of addresses (recipients) as well
1063 as the number of messages in eximstats.
1064
2b965a65
TF
1065TF/01 Correct an error in the documentation for the redirect router. Exim
1066 does (usually) call initgroups() when daemonizing.
478be7b0 1067
45b91596
PH
1068TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1069 with consistent privilege compared to when running as a daemon.
478be7b0 1070
c59f5781
TF
1071TF/03 Note in the spec that $authenticated_id is not set for local
1072 submissions from trusted users.
1073
90fc3069
TF
1074TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1075 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1076
6083aca0
TF
1077TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1078 by adding some example configuration directives to the default
1079 configuration file. A little bit of work is required to uncomment the
1080 directives and define how usernames and passwords are checked, but
1081 there is now a framework to start from.
1082
765b530f
PH
1083PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1084 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1085 without this. I don't know how relevant this is to other LDAP libraries.
1086
4e167a8c
PH
1087PH/02 Add the verb name to the "unknown ACL verb" error.
1088
4608d683
PH
1089PH/03 Magnus Holmgren's patch for filter_prepend_home.
1090
b8dc3e4a
PH
1091PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1092
5418e93b
PH
1093PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1094 directory not expanded when it should be if an expanded home directory
1095 was set for the address (which is overridden by the transport).
1096
b4a9bda2
PH
1097PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1098 libradius.
1099
45b91596
PH
1100PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1101 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1102 because it is too late at that time, and has no effect.
1103
5547e2c5
PH
1104PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1105 security issue with \' (bugzilla #107). I could not use the
1106 PQescapeStringConn() function, because it needs a PGconn value as one of
1107 its arguments.
1108
dbcef0ea
PH
1109PH/08 When testing addresses using -bt, indicate those final addresses that
1110 are duplicates that would not cause an additional delivery. At least one
1111 person was confused, thinking that -bt output corresponded to deliveries.
1112 (Suppressing duplicates isn't a good idea as you lose the information
1113 about possibly different redirections that led to the duplicates.)
1114
25257489
PH
1115PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1116 systems where poll() doesn't work, in particular OS X.
1117
c816d124
PH
1118PH/10 Added more information to debugging output for retry time not reached.
1119
a9ccd69a
PH
1120PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1121 operations in malware.c.
1122
75fa1910
PH
1123PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1124 signatures.
1125
a7d7aa58
PH
1126PH/13 If write_rejectlog was set false when logging was sent to syslog with
1127 syslog_duplication set false, log lines that would normally be written
1128 both the the main log and to the reject log were not written to syslog at
1129 all.
1130
42119b09
PH
1131PH/14 In the default configuration, change the use of "message" in ACL warn
1132 statements to "add_header".
1133
41609df5
PH
1134PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1135 not followed by a command (e.g. "seen endif").
1136
a5bd321b
PH
1137PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1138 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1139 latter.
1140
e85a7ad5 1141PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1142 so that it is now:
1143
e85a7ad5
PH
1144 ${if or { \
1145 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1146 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1147 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1148 }{no}{yes}}
1149
e85a7ad5
PH
1150 The Auto-Submitted: and various List- headers are standardised, whereas I
1151 don't think Precedence: ever was.
5dff5817 1152
d8fe1c03
PH
1153PH/18 Refactored debugging code in route_finduser() to show more information,
1154 in particular, the error code if getpwnam() issues one.
1155
16282d2b
PH
1156PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1157 This is apparently needed in addition to the PH/07 change above to avoid
1158 any possible encoding problems.
1159
35d40a98
PH
1160PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1161 but not after initializing Perl.
1162
034d99ab
PH
1163PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1164 output them only if debugging. By default they are written stderr,
1165 apparently, which is not desirable.
1166
6ec97b1b
PH
1167PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1168 queries.
1169
e22ca4ac
JJ
1170JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1171 --not options
1172
1173JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1174
33d73e3b
PH
1175PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1176 authenticated or an ident call has been made. Suppress the default
1177 values for $authenticated_id and $authenticated_sender (but permit -oMai
1178 and -oMas) when testing with -bh.
1179
9ecb03f3
PH
1180PH/24 Re-jigged the order of the tests in the default configuration so that the
1181 tests for valid domains and recipients precede the DNS black list and CSA
1182 tests, on the grounds that those ones are more expensive.
1183
084efe8d
PH
1184PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1185 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1186 This bug exists in every version of Exim that I still have, right back to
1187 0.12.
1188
366fc9f0
PH
1189PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1190 However, an attempt to turn on case-sensitivity in a regex key by
1191 including (?-i) didn't work because the subject string was already
1192 lowercased, and the effects were non-intuitive. It turns out that a
1193 one-line patch can be used to allow (?-i) to work as expected.
1194
c59f5781 1195
c887c79e
TF
1196Exim version 4.62
1197-----------------
1198
1199TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1200 other effects) broke the use of negated acl sub-conditions.
1201
1cce3af8
PH
1202PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1203 patch).
1204
afb3eaaf
PH
1205PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1206 "Deny" causes Exim to reject the incoming connection with a 554 error.
1207 Unfortunately, if there is a major crisis, such as a disk failure,
1208 tcp-wrappers gives "deny", whereas what one would like would be some
1209 kind of temporary error. A kludge has been added to help with this.
1210 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1211 554 error is used if errno is still zero or contains ENOENT (which occurs
1212 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1213 451 error is used.
1214
e173618b
PH
1215PH/03 Add -lutil to the default FreeBSD LIBS setting.
1216
dd16e114
PH
1217PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1218 errors. Otherwise a message that provokes a temporary error (when other
1219 messages do not) can cause a whole host to time out.
1220
f7fd3850
PH
1221PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1222 addresses were routed directly to files or pipes from a redirect router.
1223 File deliveries just didn't batch; pipe deliveries might have suffered
1224 odd errors.
1225
d87df92c
PH
1226PH/06 A failure to get a lock for a hints database would erroneously always say
1227 "Failed to get write lock", even when it was really a read lock.
1228
7e9f683d
PH
1229PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1230 of 0600. This has been changed to use the value of the lockfile_mode
1231 option (which defaults to 0600).
1232
bfad5236
PH
1233PH/08 Applied small patch from the Sieve maintainer.
1234
01c490df
PH
1235PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1236 folder from quota calculations, a direct delivery into this folder messed
1237 up the contents of the maildirsize file. This was because the regex was
1238 used only to exclude .Trash (or whatever) when the size of the mailbox
1239 was calculated. There was no check that a delivery was happening into an
1240 excluded directory. This bug has been fixed by ignoring all quota
1241 processing for deliveries into excluded directories.
1242
d6629cdc
PH
1243PH/10 Added the maildirfolder_create_regex option to appendfile.
1244
1cce3af8 1245
214e2000
PH
1246Exim version 4.61
1247-----------------
1248
1249PH/01 The code for finding all the local interface addresses on a FreeBSD
1250 system running IPv6 was broken. This may well have applied to all BSD
1251 systems, as well as to others that have similar system calls. The broken
1252 code found IPv4 interfaces correctly, but gave incorrect values for the
1253 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1254 that it would not match correctly against @[] and not recognize the IPv6
1255 addresses as local.
1256
f9daeae0
PH
1257PH/02 The ipliteral router was not recognizing addresses of the form user@
1258 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1259
7e66e54d
PH
1260PH/03 Added disable_ipv6.
1261
c8ea1597
PH
1262PH/04 Changed $reply_address to use the raw form of the headers instead of the
1263 decoded form, because it is most often used to construct To: headers
1264 lines in autoreplies, and the decoded form may well be syntactically
1265 invalid. However, $reply_address has leading white space removed, and all
1266 newlines turned into spaces so that the autoreply transport does not
1267 grumble.
1268
911f6fde
PH
1269PH/05 If group was specified without a user on a router, and no group or user
1270 was specified on a transport, the group from the router was ignored.
1271
47ca6d6c
PH
1272PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1273 for visible compile-time settings that can be used to change these
1274 numbers, for those that want even more. Backwards compatibility with old
1275 spool files has been maintained. However, going back to a previous Exim
1276 release will lost any variables that are in spool files.
1277
ed0e9820
PH
1278PH/07 Two small changes when running in the test harness: increase delay when
1279 passing a TCP/IP connection to a new process, in case the original
1280 process has to generate a bounce, and remove special handling of
1281 127.0.0.2 (sic), which is no longer necessary.
1282
eff37e47
PH
1283PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1284 be the same on different OS.
1285
1921d2ea
PH
1286PH/09 Moved a debug statement in filter processing to avoid a race problem when
1287 testing.
1288
b3f69ca8
JJ
1289JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1290 whether --show-vars was specified or not
1291
1292JJ/02 exipick: Added support for new ACL variable spool format introduced
1293 in 4.61-PH/06
1294
424a1c63
PH
1295PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1296 syntactically invalid From: or Reply-to: line, and a filter used this to
1297 generate an autoreply, and therefore failed to obtain an address for the
1298 autoreply, Exim could try to deliver to a non-existent relative file
1299 name, causing unrelated and misleading errors. What now happens is that
1300 it logs this as a hard delivery error, but does not attempt to create a
1301 bounce message.
1302
7a100415
PH
1303PH/11 The exinext utility has a -C option for testing purposes, but although
1304 the given file was scanned by exinext itself; it wasn't being passed on
1305 when Exim was called.
1306
19b9dc85
PH
1307PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1308 an end-of-file indication when reading a command response.
1309
309bd837
PH
1310PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1311 compiled. In many other places in Exim, IPv6 addresses are always
1312 recognized, so I have changed this. It also means that IPv4 domain
1313 literals of the form [IPV4:n.n.n.n] are now always recognized.
1314
59e82a2a
PH
1315PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1316 used if the router is not running as root, for example, when verifying at
1317 ACL time, or when using -bh. The debugging output from this situation was
1318 non-existent - all you got was a failure to exec. I have made two
1319 changes:
1320
1321 (a) Failures to set uid/gid, the current directory, or a process leader
1322 in a subprocess such as that created by queryprogram now generate
1323 suitable debugging ouput when -d is set.
1324
1325 (b) The queryprogram router detects when it is not running as root,
1326 outputs suitable debugging information if -d is set, and then runs
1327 the subprocess without attempting to change uid/gid.
1328
9edc04ce
PH
1329PH/15 Minor change to Makefile for building test_host (undocumented testing
1330 feature).
1331
1349e1e5
PH
1332PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1333 additional section of a DNS packet that returns MX or SRV records.
1334 Instead, it always explicitly searches for A/AAAA records. This avoids
1335 major problems that occur when a DNS server includes only records of one
1336 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1337 fixed another bug: if SRV records were looked up and the corresponding
1338 address records were *not* found in the additional section, the port
1339 values from the SRV records were lost.
1340
ea49d0e1
PH
1341PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1342 using the correct key (the original address) when searching the retry
1343 rules in order to find which one to use for generating the retry hint.
1344
064a94c9
PH
1345PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1346 adding the default one. Similarly, if it contains a Reply-To: header, the
1347 errors_reply_to option, if set, is not used.
1348
727071f8
PH
1349PH/19 When calculating a retry time, Exim used to measure the "time since
1350 failure" by looking at the "first failed" field in the retry record. Now
1351 it does not use this if it is later than than the arrival time of the
1352 message. Instead it uses the arrival time. This makes for better
1353 behaviour in cases where some deliveries succeed, thus re-setting the
1354 "first failed" field. An example is a quota failure for a huge message
1355 when small messages continue to be delivered. Without this change, the
1356 "time since failure" will always be short, possible causing more frequent
1357 delivery attempts for the huge message than are intended.
dd16e114 1358 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1359
f78eb7c6
PH
1360PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1361 $1, $2, $3) because the numerical variables can be reset during some
1362 expansion items (e.g. "match"), thereby losing the authentication data.
1363
21c28500
PH
1364PH/21 Make -bV show the size of off_t variables so that the test suite can
1365 decide whether to run tests for quotas > 2G.
1366
1367PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1368 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1369 filecount value is greater than 2G or if a quota value is greater than 2G
1370 on a system where the size of off_t is not greater than 4, a panic error
1371 is given.
1372
1688f43b
PH
1373PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1374 never match. The debug and -bh output now contains an explicit error
1375 message indicating a malformed IPv4 address or mask.
1376
1377PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1378 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1379 PH/23 above applies.
1380
9675b384
PH
1381PH/25 Do not write to syslog when running in the test harness. The only
1382 occasion when this arises is a failure to open the main or panic logs
1383 (for which there is an explicit test).
1384
6a3f1455
PH
1385PH/26 Added the /no_tell option to "control=freeze".
1386
dac79d3e
PH
1387PH/27 If a host name lookup failed very early in a connection, for example, if
1388 the IP address matched host_lookup and the reverse lookup yielded a name
1389 that did not have a forward lookup, an error message of the form "no IP
1390 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1391 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1392
5977a0b3
PH
1393PH/28 An enabling patch from MH: add new function child_open_exim2() which
1394 allows the sender and the authenticated sender to be set when
1395 submitting a message from within Exim. Since child_open_exim() is
1396 documented for local_scan(), the new function should be too.
1397
c91535f3
PH
1398PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1399 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1400 results in an empty string is now treated as unset.
1401
0d46a8c8
PH
1402PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1403
278c6e6c
PH
1404PH/31 Added sender_verify_fail logging option.
1405
2cbb4081
PH
1406PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1407 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1408 tidied the source and removed it altogether.
1409
3eef829e
PH
1410PH/33 When a queue run was abandoned because the load average was too high, a
1411 log line was always written; now it is written only if the queue_run log
1412 selector is set. In addition, the log line for abandonment now contains
1413 information about the queue run such as the pid. This is always present
1414 in "start" and "stop" lines but was omitted from the "abandon" line.
1415
1ab95fa6
PH
1416PH/34 Omit spaces between a header name and the colon in the error message that
1417 is given when verify = headers_syntax fails (if there are lots of them,
1418 the message gets confusing).
1419
230205fc
PH
1420PH/35 Change the default for dns_check_names_pattern to allow slashes within
1421 names, as there are now some PTR records that contain slashes. This check
1422 is only to protect against broken name servers that fall over on strange
1423 characters, so the fact that it applies to all lookups doesn't matter.
1424
75e0e026
PH
1425PH/36 Now that the new test suite is complete, we can remove some of the
1426 special code in Exim that was needed for the old test suite. For example,
1427 sorting DNS records because real resolvers return them in an arbitrary
1428 order. The new test suite's fake resolver always returns records in the
1429 same order.
1430
1431PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1432 bounces) except when queue_only is set, to avoid logging races between
1433 the different processes.
1434
145396a6
PH
1435PH/38 Panic-die if .include specifies a non-absolute path.
1436
3cd34f13
PH
1437PH/39 A tweak to the "H" retry rule from its user.
1438
11121d3d
JJ
1439JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1440 a label. They prevented compilation on older perls.
1441
1442JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1443 a warning to be raised on newish perls.
1444
1445JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1446 on queue. Changes to match documented behaviour of showing count of
1447 messages matching specified criteria.
1448
8def5aaf
PH
1449PH/40 Changed the default ident timeout from 30s to 5s.
1450
929ba01c
PH
1451PH/41 Added support for the use of login_cap features, on those BSD systems
1452 that have them, for controlling the resources used by pipe deliveries.
1453
2632889e
PH
1454PH/42 The content-scanning code uses fopen() to create files in which to put
1455 message data. Previously it was not paying any attention to the mode of
1456 the files. Exim runs with umask(0) because the rest of the code creates
1457 files with open(), and sets the required mode explicitly. Thus, these
1458 files were ending up world-writeable. This was not a big issue, because,
1459 being within the spool directory, they were not world-accessible. I have
1460 created a function called modefopen, which takes an additional mode
1461 argument. It sets umask(777), creates the file, chmods it to the required
1462 mode, then resets the umask. All the relevant calls to fopen() in the
1463 content scanning code have been changed to use this function.
1464
944a9c55
PH
1465PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1466 to 24 hours. This avoids potential overflow problems when processing G
1467 and H retry rules. I suspect nobody ever tinkers with this value.
1468
4a23603b
PH
1469PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1470
4730f942
PH
1471PH/45 When the plaintext authenticator is running as a client, the server's
1472 challenges are checked to ensure they are valid base64 strings. By
1473 default, the authentication attempt is cancelled if an invalid string is
1474 received. Setting client_ignore_invalid_base64 true ignores these errors.
1475 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1476 they are received. Thus, the responses can be made to depend on the
1477 challenges. If an invalid string is ignored, an empty string is placed in
1478 the variable.
1479
30dba1e6
PH
1480PH/46 Messages that are created by the autoreply transport now contains a
1481 References: header, in accordance with RFCs 2822 and 3834.
1482
382afc6b
PH
1483PH/47 Added authenticated_sender_force to the smtp transport.
1484
a86229cf
PH
1485PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1486
50c99ba6
PH
1487PH/49 Installed latest patch from the Sieve maintainer.
1488
d35e429d
PH
1489PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1490 was also set, the appendfile transport was unnecessarily scanning a
1491 directory of message files (e.g. for maildir delivery) to find the count
1492 of files (along with the size), even though it did not need this
1493 information. It now does the scan only if it needs to find either the
1494 size of the count of files.
1495
f90d018c
PH
1496PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1497
75def545
PH
1498PH/52 Two bugs concerned with error handling when the smtp transport is
1499 used in LMTP mode:
1500
1501 (i) Exim was not creating retry information for temporary errors given
1502 for individual recipients after the DATA command when the smtp transport
1503 was used in LMTP mode. This meant that they could be retried too
1504 frequently, and not timed out correctly.
1505
1506 (ii) Exim was setting the flag that allows error details to be returned
1507 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1508 recipients that were returned after the DATA command.
1509
1510PH/53 This is related to PH/52, but is more general: for any failing address,
1511 when detailed error information was permitted to be returned to the
1512 sender, but the error was temporary, then after the final timeout, only
1513 "retry timeout exceeded" was returned. Now it returns the full error as
1514 well as "retry timeout exceeded".
1515
c46782ef
PH
1516PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1517 do this, and (what is worse) MTAs that accept it.
1518
71fafd95
PH
1519PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1520 will now be deprecated.
1521
2c5db4fd
PH
1522PH/56 New os.c-cygwin from the Cygwin maintainer.
1523
9cf6b11a
JJ
1524JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1525 formats (previously only available in exim formats via -bpr, -bpru,
1526 and -bpra. Now also available in native and exiqgrep formats)
1527
1528JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1529 with very large, slow to parse queues
1530
1531JJ/08 exipick: added ! as generic prefix to negate any criteria format
1532
1533JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1534
898d150f
PH
1535PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1536 responses to authentication challenges, though it was showing the
1537 challenges; (ii) I've removed the CR characters from the debug output for
1538 SMTP output lines.
1539
46218253
PH
1540PH/58 Allow for the insertion of a newline as well as a space when a string
1541 is turned into more than one encoded-word during RFC 2047 encoding. The
1542 Sieve code now uses this.
1543
e97957bc
PH
1544PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1545 data_4xx, lost_connection, tls_required.
1546
81e509d7
PH
1547PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1548 message was being sent as an SMTP response.
1549
3d240ff7
PH
1550PH/61 Add -l and -k options to exicyclog.
1551
b37c4101
PH
1552PH/62 When verifying, if an address was redirected to one new address, so that
1553 verification continued, and the new address failed or deferred after
1554 having set something in $address_data, the value of $address_data was not
1555 passed back to the ACL. This was different to the case when no
1556 redirection occurred. The value is now passed back in both cases.
1557
79378e0f
PH
1558PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1559 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1560 use login_cap.h, so on its own it isn't the distinguishing feature. The
1561 new name refers directly to the setclassresources() function.
1562
e49c7bb4
PH
1563PH/65 Added configuration files for NetBSD3.
1564
d114ec46
PH
1565PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1566
f3d7df6c
PH
1567PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1568 is preferred over IPv4.
1569
715ab376
PH
1570PH/68 The bounce_return_message and bounce_return_body options were not being
1571 honoured for bounces generated during the reception of non-SMTP messages.
1572 In particular, this applied to messages rejected by the ACL. This bug has
1573 been fixed. However, if bounce_return_message is true and bounce_return_
1574 body is false, the headers that are returned for a non-SMTP message
1575 include only those that have been read before the error was detected.
1576 (In the case of an ACL rejection, they have all been read.)
1577
6b31b150
PH
1578PH/69 The HTML version of the specification is now built in a directory called
1579 spec_html instead of spec.html, because the latter looks like a path with
1580 a MIME-type, and this confuses some software.
1581
1582PH/70 Catch two compiler warnings in sieve.c.
1583
d515a917
PH
1584PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1585 function verify_get_ident() calls ip_connect() to connect a socket, but
1586 if the "connect()" function timed out, ip_connect() used to close the
1587 socket. However, verify_get_ident() also closes the socket later, and in
1588 between Exim writes to the log, which may get opened at this point. When
1589 the socket was closed in ip_connect(), the log could get the same file
1590 descriptor number as the socket. This naturally causes chaos. The fix is
1591 not to close the socket in ip_connect(); the socket should be closed by
1592 the function that creates it. There was only one place in the code where
1593 this was missing, in the iplookup router, which I don't think anybody now
1594 uses, but I've fixed it anyway.
1595
9b8fadde
PH
1596PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1597 well as to direct DNS lookups. Otherwise the handling of names in host
1598 lists is inconsistent and therefore confusing.
1599
214e2000 1600
5de37277
PH
1601Exim version 4.60
1602-----------------
1603
cc38ddbf
PH
1604PH/01 Two changes to the default runtime configuration:
1605
1606 (1) Move the checks for relay_from_hosts and authenticated clients from
1607 after to before the (commented out) DNS black list checks.
1608
1609 (2) Add control=submission to the relay_from_hosts and authenticated
1610 clients checks, on the grounds that messages accepted by these
1611 statements are most likely to be submissions.
5de37277 1612
72fdd6ae
PH
1613PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1614
1615 (1) Generate an error if the third argument for the ${prvs expansion is
1616 not a single digit.
1617
1618 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1619 string.
1620
1621 (3) Reset the variables that are obtained from the first argument of
1622 ${prvscheck and used in the second argument before leaving the code,
1623 because their memory is reclaimed, so using them afterwards may do
1624 silly things.
1625
1626 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1627 one (it's much easier than Tom thought :-).
1628
1629 (5) Because of (4), we can now allow for the use of $prvscheck_result
1630 inside the third argument.
cb9328de 1631
cb741023
PH
1632PH/03 For some reason, the default setting of PATH when running a command from
1633 a pipe transport was just "/usr/bin". I have changed it to
1634 "/bin:/usr/bin".
1635
f174f16e
PH
1636PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1637 anything to be listed in the output from -bV.
b2f5a032 1638
c25242d7
PH
1639PH/05 When a filter generated an autoreply, the entire To: header line was
1640 quoted in the delivery log line, like this:
1641
1642 => >A.N.Other <ano@some.domain> <original@ddress> ...
1643
1644 This has been changed so that it extracts the operative address. There
1645 may be more than one such address. If so, they are comma-separated, like
1646 this:
1647
1648 => >ano@some.domain,ona@other.domain <original@ddress> ...
1649
82c19f95
PH
1650PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1651 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1652 not being looked up in the rDNS to get a host name, Exim was showing the
1653 IP address twice in Received: lines, even though the IP addresses were
1654 identical. For example:
1655
1656 Received: from [1.2.3.4] (helo=[1.2.3.4])
1657
1658 However, if the real host name was known, it was omitting the HELO data
1659 if it matched the actual IP address. This has been tidied up so that it
1660 doesn't show the same IP address twice.
1661
d7ffbc12
PH
1662PH/07 When both +timestamp and +memory debugging was on, the value given by
1663 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1664 called by the debug printing, thereby overwriting the timestamp buffer.
1665 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1666
9f526266
PH
1667PH/08 When the original message was included in an autoreply transport, it
1668 always said "this is a copy of the message, including all the headers",
1669 even if body_only or headers_only was set. It now gives an appropriate
1670 message.
1671
87fcc8b9
PH
1672PH/09 Applied a patch from the Sieve maintainer which:
1673
1674 o fixes some comments
1675 o adds the (disabled) notify extension core
1676 o adds some debug output for the result of if/elsif tests
1677 o points to the current vacation draft in the documentation
1678 and documents the missing references header update
1679
1680 and most important:
1681
1682 o fixes a bug in processing the envelope test (when testing
1683 multiple envelope elements, the last element determinted the
1684 result)
1685
456682f5
PH
1686PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1687 Electronic Mail") by including:
1688
1689 Auto-submitted: auto-generated
1690
1691 in the messages that it generates (bounce messages and others, such as
1692 warnings). In the case of bounce messages for non-SMTP mesages, there was
1693 also a typo: it was using "Auto_submitted" (underscore instead of
1694 hyphen). Since every message generated by Exim is necessarily in response
1695 to another message, thes have all been changed to:
1696
1697 Auto-Submitted: auto-replied
1698
1699 in accordance with these statements in the RFC:
1700
1701 The auto-replied keyword:
1702
1703 - SHOULD be used on messages sent in direct response to another
1704 message by an automatic process,
1705
1706 - MUST NOT be used on manually-generated messages,
1707
1708 - MAY be used on Delivery Status Notifications (DSNs) and Message
1709 Disposition Notifications (MDNs),
1710
1711 - MUST NOT be used on messages generated by automatic or periodic
1712 processes, except for messages which are automatic responses to
1713 other messages.
1714
3e46c1aa
PH
1715PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1716 to the default Received: header definition.
456682f5 1717
49826d12
PH
1718PH/12 Added log selector acl_warn_skipped (default on).
1719
eba0c039
PH
1720PH/13 After a successful wildlsearch lookup, discard the values of numeric
1721 variables because (a) they are in the wrong storage pool and (b) even if
1722 they were copied, it wouldn't work properly because of the caching.
1723
a0d6ba8a
PH
1724PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1725 checking when decoding. Apparently there are clients that generate
1726 overlong encoded strings. Why am I not surprised?
1727
f0917727
PH
1728PH/15 If the first argument of "${if match_address" was not empty, but did not
1729 contain an "@" character, Exim crashed. Now it writes a panic log message
1730 and treats the condition as false.
1731
096fee00
PH
1732PH/16 In autoreply, treat an empty string for "once" the same as unset.
1733
024bd3c2
PH
1734PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1735 extension "envelope-auth". The code is finished and in agreement with
1736 other implementations, but there is no documentation so far and in fact,
1737 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1738 not changing the active code.
1739
1740 Print executed "if" and "elsif" statements when debugging is used. This
1741 helps a great deal to understand what a filter does.
1742
1743 Document more things not specified clearly in RFC3028. I had all this
1744 sorted out, when out of a sudden new issues came to my mind. Oops."
1745
df199fec
PH
1746PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1747 (Bugzilla #53).
1748
d27f1df3
PH
1749PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1750 canonical form (as documented). However, after a host name lookup from
1751 the IP address, check_host() was doing a simple string comparison with
1752 addresses acquired from the DNS when checking that the found name did
1753 have the original IP as one of its addresses. Since any found IPv6
1754 addresses are likely to be in abbreviated form, the comparison could
1755 fail. Luckily, there already exists a function for doing the comparison
1756 by converting both addresses to binary, so now that is used instead of
1757 the text comparison.
1758
96776534
PH
1759PH/20 There was another similar case to PH/19, when a complete host name was
1760 given in a host list; looking up its IP address could give an abbreviated
1761 form, whereas the current host's name might or might not be abbreviated.
1762 The same fix has been applied.
1763
5de37277 1764
9a799bc0
PH
1765Exim version 4.54
1766-----------------
1767
1768PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1769 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1770 It now does.
1771
99a4b039
PH
1772PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1773 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1774
1775PH/03 Typo: missing ".o" in src/pcre/Makefile.
1776
4b233853
PH
1777PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1778 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1779 Also, for "Auto-Submitted", treat anything other than "no" as
1780 non-personal, in accordance with RFC 3834. (Previously it treated
1781 anything starting "auto-" as non-personal.)
1782
8857ccfd
PH
1783TF/01 The control=submission/name=... option had a problem with syntax
1784 errors if the name included a slash character. The /name= option
1785 now slurps the rest of the string, so it can include any characters
1786 but it must come last in the list of options (after /sender_retain
1787 or /domain=).
1788
433a2980
PH
1789PH/05 Some modifications to the interface to the fake nameserver for the new
1790 testing suite.
1791
3e46c1aa 1792
9a799bc0 1793
e3a311ba
TK
1794Exim version 4.53
1795-----------------
1796
1797TK/01 Added the "success_on_redirect" address verification option. See
1798 NewStuff for rationale and an example.
1799
13b685f9
PH
1800PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1801
395ff96d
PH
1802PH/02 Patch to exigrep to allow it to work on syslog lines.
1803
5b68f6e4
PH
1804PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1805 fread() to skip over the body file's header line, because in Cygwin the
1806 header line is locked and is inaccessible.
1807
1ab52c69
PH
1808PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1809 co-exist for some time) to make it clear that it is the Exim ID that is
1810 referenced, not the Message-ID: header line.
1811
b07e6aa3
PH
1812PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1813 string_format() function, because snprintf() does not exist on all
1814 operating systems.
1815
254e032f
PH
1816PH/06 The use of forbid_filter_existstest now also locks out the use of the
1817 ${stat: expansion item.
1818
3af76a81
PH
1819PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1820 protocol synchronization error", to keep the pedants happy.
1821
2548ba04
PH
1822PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1823 well as for IRIX systems, when gcc is being used. See the host.c source
1824 file for comments.
1825
b6c6011d
PH
1826PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1827
cf39cf57
PH
1828PH/10 Named domain lists were not working if used in a queue_smtp_domains
1829 setting.
1830
f1513293
PH
1831PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1832 transport and to the smtp transport in LMTP mode.
1833
727549a4
PH
1834TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1835
af46795e
PH
1836PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1837 run a filter in a subprocess. This could lead to confusion in subsequent
1838 lookups in the parent process. There should also be a search_tidyup() at
1839 the end of the subprocess.
1840
d7b47fd0
PH
1841PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1842 only if the host matched helo_try_verify_hosts, which caused the
1843 verification to occur when the EHLO/HELO command was issued. The ACL just
1844 tested the remembered result. Now, if a previous verification attempt has
1845 not happened, "verify = helo" does it there and then.
1846
ee744174
JJ
1847JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1848
b582ab87
PH
1849TK/03 Fix log output including CR from clamd.
1850
41a13e0a
PH
1851PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1852 exist provoked a memory error which could cause a segfault.
1853
f625cc5a
PH
1854PH/15 Installed PCRE 6.2
1855
1856PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1857
21f7af35
PH
1858PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1859 of the problem. Specifically, suggested +O2 rather than +O1 for the
1860 HP-UX compiler.
1861
31480e42
PH
1862PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1863
2d280592
PH
1864PH/20 If a delivery was routed to a non-standard port by means of an SRV
1865 record, the port was not correctly logged when the outgoing_port log
1866 selector was set (it logged the transort's default port).
1867
7cd1141b
PH
1868PH/21 Added support for host-specific ports to manualroute, queryprogram,
1869 fallback_hosts, and "hosts" in the smtp transport.
1870
1871PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1872 host errors such as "Connection refused".
1873
750af86e
PH
1874PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1875 authentication with radiusclient 0.4.9:
1876
1877 - Error returned from rc_read_config was caught wrongly
1878 - Username/password not passed on to radius server due to wrong length.
1879
1880 The presumption is that some radiusclient API changes for 4.51/PH/17
1881 were not taken care of correctly. The code is still untested by me (my
1882 Linux distribution still has 0.3.2 of radiusclient), but it was
1883 contributed by a Radius user.
1884
1885PH/24 When doing a callout, the value of $domain wasn't set correctly when
1886 expanding the "port" option of the smtp transport.
1887
4304270b
TK
1888TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1889 while reading a MIME header. Thanks to Tom Hughes for a patch.
1890
750af86e
PH
1891PH/24 Include config.h inside local_scan.h so that configuration settings are
1892 available.
1893
64ffc24f
PH
1894PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1895 that in an ACL for RCPT (for example), you can examine exactly what was
1896 received.
1897
5dd9625b
PH
1898PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1899 commands, but it was not correctly comparing the address with the actual
1900 client host address. Thus, it would show the EHLO address in Received:
1901 header lines when this was not necessary.
1902
5591031b
PH
1903PH/27 Added the % operator to ${eval:}.
1904
ba18e66a
PH
1905PH/28 Exim tries to create and chdir to its spool directory when it starts;
1906 it should be ignoring failures (because with -C, for example, it has lost
1907 privilege). It wasn't ignoring creation failures other than "already
1908 exists".
1909
9cec981f
PH
1910PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1911 -bV or -d is used.
1912
aa2b5c79
PH
1913PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1914 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1915 too many continuations, the temporary file was not being removed, and the
1916 return code was incorrect.
aa2b5c79 1917
48a53b7f
PH
1918PH/31 Missing "BOOL" in function definition in filtertest.c.
1919
1c59d63b
PH
1920PH/32 Applied Sieve patches from the maintainer.
1921
671012da
TK
1922TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1923
1509d3a8
PH
1924PH/33 Added "verify = not_blind".
1925
1926PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1927 Local/Makefile (with some defaults set). These are used in built scripts
1928 such as exicyclog, but they have never been used in the exim_install
1929 script (though there are many overriding facilities there). I have
1930 arranged that the exim_install script now takes note of these two
1931 settings.
1932
1933PH/35 Installed configuration files for Dragonfly.
1934
2fe1a124
PH
1935PH/36 When a locally submitted message by a trusted user did not contain a
1936 From: header, and the sender address was obtained from -f or from an SMTP
1937 MAIL command, and the trusted user did not use -F to supply a sender
1938 name, $originator_name was incorrectly used when constructing a From:
1939 header. Furthermore, $originator_name was used for submission mode
1940 messages from external hosts without From: headers in a similar way,
1941 which is clearly wrong.
1942
8800895a
PH
1943PH/37 Added control=suppress_local_fixups.
1944
ccfdb010
PH
1945PH/38 When log_selector = +received_sender was set, and the addition of the
1946 sender made the log line's construction buffer exactly full, or one byte
1947 less than full, an overflow happened when the terminating "\n" was
1948 subsequently added.
1949
1130bfb0
PH
1950PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1951 when the result of a list match is failure because a DNS lookup failed.
1952
ebcb507f
PH
1953PH/40 RM_COMMAND is now used in the building process.
1954
c35e155c
PH
1955PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1956 the "build-* directories that it finds.
1957
95d1f782
PH
1958PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1959 address in a domain literal was a prefix of an interface address.
1960
fd6de02e
PH
1961PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1962 when verifying a sender address, unless rewrite_headers is false.
1963
58de37c5
PH
1964PH/44 Wrote a long comment about why errors_to addresses are verified as
1965 recipients, not senders.
1966
261cf466
TF
1967TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1968 the ratelimit ACL was added.
1969
3ee512ff
PH
1970PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1971
e08c430f
PH
1972PH/46 Added extra information about PostgreSQL errors to the error string.
1973
bef5a11f
PH
1974PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1975 avoiding the need to install special zones in a real server. This is
1976 backwards compatible; if it can't find the fake resolver, it drops back.
1977 Thus, both old and new test suites can be run.
1978
7546de58
TF
1979TF/02 Added util/ratelimit.pl
1980
e5d5a95f
TF
1981TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1982 clock is set back in time.
1983
2e88a017
TF
1984TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1985 Candler <B.Candler@pobox.com>.
1986
a5f65aa4
TF
1987TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1988 OK for addresses that are the result of redirections.
1989
e7726cbf
PH
1990PH/48 A number of further additions for the benefit of the new test suite,
1991 including a fake gethostbyname() that interfaces to the fake DNS resolver
1992 (see PH/47 above).
1993
a7fdad5b
TF
1994TF/06 The fix for widen_domains has also been applied to qualify_single and
1995 search_parents which are the other dnslookup options that can cause
1996 header rewrites.
1997
6af56900
PH
1998PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1999 type ("H").
2000
0925ede6
PH
2001PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2002
66afa403
TF
2003TF/07 Exim produced the error message "an SRV record indicated no SMTP
2004 service" if it encountered an MX record with an empty target hostname.
2005 The message is now "an MX or SRV record indicated no SMTP service".
2006
0154e85a
TF
2007TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2008 if the DNS of the sending site is misconfigured. This is quite a
2009 common situation. This change restores the behaviour of treating a
2010 helo verification defer as a failure.
2011
16f12c76
PH
2012PH/51 If self=fail was set on a router, the bounce message did not include the
2013 actual error message.
2014
bbe902f0 2015
e5a9dba6
PH
2016Exim version 4.52
2017-----------------
2018
2019TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2020
22c3b60b
PH
2021PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2022 command itself ended in error, the underlying message about the transport
2023 filter timeout was being overwritten with the pipe command error. Now the
2024 underlying error message should be appended to the second error message.
2025
06a9b4b5
PH
2026TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2027
c1ac6996
PH
2028PH/02 Reduce the amount of output that "make" produces by default. Full output
2029 can still be requested.
2030
9c7a242c
PH
2031PH/03 The warning log line about a condition test deferring for a "warn" verb
2032 was being output only once per connection, rather than after each
2033 occurrence (because it was using the same function as for successful
2034 "warn" verbs). This seems wrong, so I have changed it.
2035
87ba3f5f
PH
2036TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2037 it should not have, which might have caused a crash in the right
2038 circumstances, but probably never did.
2039
2040PH/04 Installed a modified version of Tony Finch's patch to make submission
2041 mode fix the return path as well as the Sender: header line, and to
2042 add a /name= option so that you can make the user's friendly name appear
2043 in the header line.
2044
29aba418
TF
2045TF/03 Added the control = fakedefer ACL modifier.
2046
fe0dab11
TF
2047TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2048 Mark Lowes for thorough testing.
870f6ba8 2049
11d337a4
TK
2050TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2051
2052TK/03 Merged latest SRS patch from Miles Wilton.
2053
415c8f3b
PH
2054PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2055 with the definition in sysexits.h (which is #included earlier).
2056 Fortunately, Exim does not actually use EX_OK. The code used to try to
2057 preserve the sysexits.h value, by assumimg that macro definitions were
2058 scanned for macro replacements. I have been disabused of this notion,
2059 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2060
958541e9
PH
2061PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2062 in the smtp transport. When a block could not be written in a single
2063 write() function, the timeout was being re-applied to each part-write.
2064 This seems wrong - if the receiver was accepting one byte at a time it
2065 would take for ever. The timeout is now adjusted when this happens. It
2066 doesn't have to be particularly precise.
2067
c206415f
TK
2068TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2069 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2070
2a4be8f9
PH
2071PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2072 without a domain if the check to <postmaster@domain> fails.
2073
1cba11c5
SC
2074SC/01 Eximstats: added -xls and the ability to specify output files
2075 (patch written by Frank Heydlauf).
2076
2077SC/02 Eximstats: use FileHandles for outputing results.
2078
2079SC/03 Eximstats: allow any combination of xls, txt, and html output.
2080
2081SC/04 Eximstats: fixed display of large numbers with -nvr option
2082
2083SC/05 Eximstats: fixed merging of reports with empty tables.
2084
2085SC/06 Eximstats: added the -include_original_destination flag
2086
2087SC/07 Eximstats: removed tabs and trailing whitespace.
2088
1005d00e
TK
2089TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2090
2091TK/06 MBOX spool code: Add real "From " MBOX separator line
2092 so the .eml file is really in mbox format (even though
2093 most programs do not really care). Patch from Alex Miller.
2094
2095TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2096 The latter is generated from $received_to and is only set if the
2097 message has one envelope recipient. SA can use these headers,
2098 obviously out-of-the-box. Patch from Alex Miller.
2099
9b4768fa
PH
2100PH/08 The ${def test on a variable was returning false if the variable's
2101 value was "0", contrary to what the specification has always said!
2102 The result should be true unless the variable is empty.
2103
2104PH/09 The syntax error of a character other than { following "${if
2105 def:variable_name" (after optional whitespace) was not being diagnosed.
2106 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2107 accidental colon was present, for example, could give incorrect results.
2108
0d7eb84a
PH
2109PH/10 Tidied the code in a number of places where the st_size field of a stat()
2110 result is used (not including appendfile, where other changes are about
2111 to be made).
2112
2113PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2114 This involved changing a lot of size variables from int to off_t. It
2115 should work with maildirs and everything.
2116
40727bee
TK
2117TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2118 spamd dying while we are connected to it.
2119
554d2369
TF
2120TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2121 <jgh@wizmail.org>
2122
1f922db1
PH
2123PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2124 function for BDB 4.3.
2125
ef213c3b
PH
2126PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2127
8ac170f3
PH
2128PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2129 the sources for PCRE have been re-arranged and more files are now
2130 involved.
2131
b1c749bb
PH
2132PH/15 The code I had for printing potentially long long variables in PH/11
2133 above was not the best (it lost precision). The length of off_t variables
2134 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2135 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2136 to be "long long int" or "long int". This is needed for the internal
2137 formatting function string_vformat().
b1c749bb 2138
4aac9b49
PH
2139PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2140 the configuration file to be ":syslog", then the script "guesses" where
2141 the logs files are, rather than using the compiled in default. In our
2142 case the guess is not the same as the compiled default, so the script
2143 suddenly stopped working when I started to use syslog. The patch checks
2144 to see if log_file_path is "". If so, it attempts to read it from exim
2145 with no configuration file to get the compiled in version, before it
2146 falls back to the previous guessing code."
2147
294520c8
TK
2148TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2149 implementing BATV in an Exim configuration. See NewStuff for the gory
2150 details.
2151
5bd022fe
PH
2152PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2153 Makefile that are specific to HP-UX.
2154
90e9ce59
PH
2155PH/18 If the "use_postmaster" option was set for a recipient callout together
2156 with the "random" option, the postmaster address was used as the MAIL
2157 FROM address for the random test, but not for the subsequent recipient
2158 test. It is now used for both.
2159
5ea81592
PH
2160PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2161 patch removes a few documentation additions to RFC 3028, because the
2162 latest draft now contains them. It adds the new en;ascii-case comparator
2163 and a new error check for 8bit text in MIME parts. Comparator and
2164 require names are now matched exactly. I enabled the subaddress
2165 extension, but it is not well tested yet (read: it works for me)."
2166
c6c2dc1d
PH
2167PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2168 rework some of the code of TK/09 above to avoid the hardwired use of
2169 "%lld" and "long long". Replaced the call to snprintf() with a call to
2170 string_vformat().
2171
fffffe4c
PH
2172PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2173 records point to non-existent hosts", "retry timeout exceeded", and
2174 "retry time not reached for any host after a long failure period".
ca02eafb 2175
9a26b6b2
PH
2176PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2177 experimental DomainKeys support:
2178
2179 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2180 (2) On an error such as an illegally used "control", the wrong name for
2181 the control was given.
2182
2183 These problems did NOT occur unless DomainKeys support was compiled.
2184
4aee0225
PH
2185PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2186
32d668a5
PH
2187PH/24 Added ${if match_ip condition.
2188
8187c3f3
PH
2189PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2190 databases so that it will be absolutely obvious if a crash occurs in the
2191 DB library. This is a regular occurrence (often caused by mis-matched
2192 db.h files).
2193
ff790e47 2194PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2195 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2196 picked up on a user's system that detects such things. There doesn't seem
2197 to be a gcc warning option for this - only an attribute that has to be
2198 put on the function's prototype. It seems that in Fedora Core 4 they have
2199 set this on a number of new functions. No doubt there will be more in due
2200 course.
ff790e47 2201
5417f6d1
PH
2202PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2203 specify a transport. However, if an address that was verified by such a
2204 router was the subject of a callout, Exim crashed because it tried to
2205 read the rcpt_include_affixes from the non-existent transport. Now it
2206 just assumes that the setting of that option is false. This bug was
2207 introduced by 4.51/PH/31.
2208
59cf8544
PH
2209PH/28 Changed -d+all to exclude +memory, because that information is very
2210 rarely of interest, but it makes the output a lot bigger. People tend to
2211 do -d+all out of habit.
2212
e7ad8a65
PH
2213PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2214 code in os-type was giving problems when libc.so lives in lib64, like on
2215 x86_64 Fedora Core.
2216
ade42478
PH
2217PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2218 aren't the modern standard, and it seems that some systems' include files
2219 don't always have them. Exim was already checking for some of the newer
2220 ones like T_AAAA, and defining it itself. I've added checks for all the
2221 record types that Exim uses.
2222
182ad5cf
PH
2223PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2224 not automatically generating a new one, as it is supposed to. This
2225 prevented TLS from working. If the file did exist, but contained invalid
2226 data, a new version was generated, as expected. It was only the case of a
2227 non-existent file that was broken.
2228
b0d9fc80
TK
2229TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2230 with a change in libdomainkeys > 0.64.
2231
2232TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2233 from DNS. If the selector record carries the flag, it now has
2234 precedence over the domain-wide flag.
2235
2236TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2237
47c7a64a
PH
2238PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2239 the use of a port name that isn't defined in /etc/services) occurred, the
2240 message was deferred as in a normal delivery, and thus remained on the
2241 spool, instead of being failed because of the mua_wrapper setting. This
2242 is now fixed, and I tidied up some of the mua_wrapper messages at the
2243 same time.
2244
a388bce4
SC
2245SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2246 the messages in a hash of arrays rather than using individual hashes.
2247 This is a bit cleaner and results in dramatic memory savings, albeit
2248 at a slight CPU cost.
2249
2250SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2251 as requested by Marc Sherman.
2252
2253SC/10 Eximstats: added histograms for user specified patterns as requested
2254 by Marc Sherman.
2255
0793e4ed
SC
2256SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2257
c58b88df
PH
2258PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2259 fopen() in the content-scanning modules that did not already have it.
2260
e7ad8a65 2261
7982096b
PH
2262Exim version 4.51
2263-----------------
2264
1a46a8c5
PH
2265TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2266 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2267
2f079f46 2268TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2269
2270TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2271
2272PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2273 to test Sieve filters that use "vacation".
2274
2275PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2276 that changes the way the GnuTLS parameters are stored in the cache file.
2277 The new format can be generated externally. For backward compatibility,
2278 if the data in the cache doesn't make sense, Exim assumes it has read an
2279 old-format file, and it generates new data and writes a new file. This
2280 means that you can't go back to an older release without removing the
2281 file.
2282
2283PH/03 A redirect router that has both "unseen" and "one_time" set does not
2284 work if there are any delivery delays because "one_time" forces the
2285 parent to be marked "delivered", so its unseen clone is never tried
2286 again. For this reason, Exim now forbids the simultaneous setting of
2287 these two options.
2288
2289PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2290 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2291 entry if you want to know the details. The fix, however, neglected to
2292 consider the case when local delivery batching is involved. The test for
2293 "previously delivered" was not happening when checking to see if an
2294 address could be batched with a previous (undelivered) one; under
2295 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2296 address.
1a46a8c5
PH
2297
2298PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2299 in its include files, and this causes problems building Exim.
2300
2301PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2302 header_syntax) but Exim was just ignoring anything given after a slash.
2303 In particular, this caused confusion with an attempt to use "verify =
2304 reverse_host_lookup/defer_ok". An error is now given when options are
2305 supplied for verify items that do not have them. (Maybe reverse_host_
2306 lookup should have a defer_ok option, but that's a different point.)
2307
2308PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2309 defined by RFC 821) to 2048, because there were problems with some AUTH
2310 commands, and RFC 1869 says the size should be increased for extended
2311 SMTP commands that take arguments.
2312
2313PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2314 Finch).
2315
2316PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2317 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2318
49c2d5ea
PH
2319PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2320 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2321 whatever). Otherwise the password may appear in the log. Following change
2322 PH/42 below, there is no longer a chance of it appearing in a bounce
2323 message.
49c2d5ea 2324
bf759a8b
PH
2325PH/11 Installed exipick version 20050225.0 from John Jetmore.
2326
83364d30
PH
2327PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2328 of its addresses was ever tried. (Bugzilla bug #2.)
2329
7999bbd7
PH
2330PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2331 the result incorrectly in the debug output. (It correctly added a newline
2332 to what was transported.)
2333
7dbf77c9
PH
2334TF/01 Added $received_time.
2335
74e0617f
PH
2336PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2337 commented out examples of how to interface to a virus scanner and to
2338 SpamAssassin. Also added commented examples of av_scanner and
2339 spamd_address settings.
2340
2f079f46
PH
2341PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2342 and controls are allowed in which ACLs. There were a couple of minor
2343 errors. Some of the entries in the conditions table (which is a table of
2344 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2345 negation of where the condition IS allowed.
2346
8c841523
PH
2347PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2348
7766a4f0
PH
2349PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2350 header file does not have a version number, so I've had to invent a new
2351 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2352 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2353 radiusclient), but it was contributed by a Radius user.
2354
8b417f2c
PH
2355PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2356 files or directories, for OpenSSL.
2357
901f42cb
PH
2358PH/19 When an Exim process that is running as root has to create an Exim log
2359 file, it does so in a subprocess that runs as exim:exim so as to get the
2360 ownership right at creation (otherwise, other Exim processes might see
2361 the file with the wrong ownership). There was no test for failure of this
2362 fork() call, which would lead to the process getting stuck as it waited
2363 for a non-existent subprocess. Forks do occasionally fail when resources
2364 run out. I reviewed all the other calls to fork(); they all seem to check
2365 for failure.
2366
f9b9210e
PH
2367PH/20 When checking for unexpected SMTP input at connect time (before writing
2368 the banner), Exim was not dealing correctly with a non-positive return
2369 from the read() function. If the client had disconnected by this time,
2370 the result was a log entry for a synchronization error with an empty
2371 string after "input=" when read() returned zero. If read() returned -1
2372 (an event I could not check), uninitialized data bytes were printed.
2373 There were reports of junk text (parts of files, etc) appearing after
2374 "input=".
2375
54cdb463
PH
2376PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2377
cf00dad6
PH
2378PH/22 Added support for macro redefinition, and (re)definition in between
2379 driver and ACL definitions.
2380
acb1b346
PH
2381PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2382 forgetting to use the resulting value; it was using the unexpanded value.
2383
c5ddb310
PH
2384PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2385 hadn't been configured. The fix is from Juergen Kreileder, who
2386 understands it better than I do:
2387
2388 "Here's what I see happening with three configured cyrus_sasl
2389 authenticators configured (plain, login, cram-md5):
2390
2391 On startup auth_cyrus_sasl_init() gets called for each of these.
2392 This means three calls to sasl_listmech() without a specified mech_list.
2393 => SASL tests which mechs of all available mechs actually work
2394 => three warnings about OTP not working
2395 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2396
2397 With the patch, sasl_listmech() also gets called three times. But now
2398 SASL's mech_list option is set to the server_mech specified in the the
2399 authenticator. Or in other words, the answer from sasl_listmech()
2400 gets limited to just the mech you're testing for (which is different
2401 for each call.)
2402 => the return list contains just 'plain' or 'login', 'cram-md5' or
2403 nothing depending on the value of ob->server_mech.
2404
2405 I've just tested the patch: Authentication still works fine,
2406 unavailable mechs specified in the exim configuration are still
2407 caught, and the auth.log warnings about OTP are gone."
2408
31619da6
PH
2409PH/25 When debugging is enabled, the contents of the command line are added
2410 to the debugging output, even when log_selector=+arguments is not
2411 specified.
2412
bebaf0fc
PH
2413PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2414 answer is "GNU", and only if the return is "GNU/something" is the answer
2415 "Linux".
2416
475fe28a
PH
2417PH/27 $acl_verify_message is now set immediately after the failure of a
2418 verification in an ACL, and so is available in subsequent modifiers. In
2419 particular, the message can be preserved by coding like this:
2420
2421 warn !verify = sender
2422 set acl_m0 = $acl_verify_message
2423
2424 Previously, $acl_verify_message was set only while expanding "message"
2425 and "log_message" when a very denied access.
2426
7e8bec7a
PH
2427PH/28 Modified OS/os.c-Linux with
2428
2429 -#ifndef OS_LOAD_AVERAGE
2430 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2431
2432 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2433 nomenclature these days.)
2434
e4a89c47
PH
2435PH/29 Installed patch from the Sieve maintainer that adds the options
2436 sieve_useraddress and sieve_subaddress to the redirect router.
2437
5ca2a9a1
PH
2438PH/30 In these circumstances:
2439 . Two addresses routed to the same list of hosts;
2440 . First host does not offer TLS;
2441 . First host accepts first address;
2442 . First host gives temporary error to second address;
2443 . Second host offers TLS and a TLS session is established;
2444 . Second host accepts second address.
2445 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2446 and peerdn, if requested) that were in fact used only for the second
2447 address.
7e8bec7a 2448
c688b954
PH
2449PH/31 When doing a callout as part of verifying an address, Exim was not paying
2450 attention to any local part prefix or suffix that was matched by the
2451 router that accepted the address. It now behaves in the same way as it
2452 does for delivery: the affixes are removed from the local part unless
2453 rcpt_include_affixes is set on the transport.
2454
fed77020
PH
2455PH/32 Add the sender address, as F=<...>, to the log line when logging a
2456 timeout during the DATA phase of an incoming message.
2457
7fe1560f
PH
2458PH/33 Sieve envelope tests were broken for match types other than :is. I have
2459 applied a patch sanctioned by the Sieve maintainer.
c688b954 2460
ebb6e6d5
PH
2461PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2462 the uid or gid is negative. A case of a negative gid caused this to be
2463 noticed. The fix allows for either to be negative.
2464
9c4e8f60
PH
2465PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2466 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2467 overlooked.
2468
2469PH/36 The change PH/12 above was broken. Fixed it.
2470
d7174846
PH
2471PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2472 the grounds that routing the same address twice would always produce the
2473 same answer. This might have been true once, but it is certainly no
2474 longer true now. Routing a child address may depend on the previous
2475 routing that produced that child. Some complicated redirection strategies
2476 went wrong when messages had multiple recipients, and made Exim's
2477 behaviour dependent on the order in which the addresses were given.
2478
2479 I have moved the duplicate checking until after the routing is complete.
2480 Exim scans the addresses that are assigned to local and remote
2481 transports, and removes any duplicates. This means that more work will be
2482 done, as duplicates will always all be routed, but duplicates are
2483 presumably rare, so I don't expect this is of any significance.
2484
2485 For deliveries to pipes, files, and autoreplies, the duplicate checking
2486 still happens during the routing process, since they are not going to be
2487 routed further.
2488
cfe75fc3
PH
2489PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2490 It corrects a timeout issue with spamd. This is Ian's comment: "The
2491 background is that sometimes spamd either never reads data from a
2492 connection it has accepted, or it never writes response data. The exiscan
2493 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2494 blindly assumes that writes won't block so it may never time out."
2495
be22d70e
PH
2496PH/39 Allow G after quota size as well as K and M.
2497
0612b098
PH
2498PH/40 The value set for $authenticated_id in an authenticator may not contain
2499 binary zeroes or newlines because the value is written to log lines and
2500 to spool files. There was no check on this. Now the value is run through
2501 the string_printing() function so that such characters are converted to
2502 printable escape sequences.
2503
2e0c1448
PH
2504PH/41 $message_linecount is a new variable that contains the total number of
2505 lines in the message. Compare $body_linecount, which is the count for the
2506 body only.
2507
447d236c
PH
2508PH/42 Exim no longer gives details of delivery errors for specific addresses in
2509 bounce and delay warning messages, except in certain special cases, which
2510 are as follows:
2511
2512 (a) An SMTP error message from a remote host;
2513 (b) A message specified in a :fail: redirection;
2514 (c) A message specified in a "fail" command in a system filter;
2515 (d) A message specified in a FAIL return from the queryprogram router;
2516 (e) A message specified by the cannot_route_message router option.
2517
2518 In these cases only, Exim does include the error details in bounce and
2519 warning messages. There are also a few cases where bland messages such
2520 as "unrouteable address" or "local delivery error" are given.
2521
d20976dc
PH
2522PH/43 $value is now also set for the "else" part of a ${run expansion.
2523
f656d135
PH
2524PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2525 being worked on, but at least Exim now implements the latest version to
2526 play with."
2527
2e2a30b4
PH
2528PH/45 In a pipe transport, although a timeout while waiting for the pipe
2529 process to complete was treated as a delivery failure, a timeout while
2530 writing the message to the pipe was logged, but erroneously treated as a
2531 successful delivery. Such timeouts include transport filter timeouts. For
2532 consistency with the overall process timeout, these timeouts are now
2533 treated as errors, giving rise to delivery failures by default. However,
2534 there is now a new Boolean option for the pipe transport called
2535 timeout_defer, which, if set TRUE, converts the failures into defers for
2536 both kinds of timeout. A transport filter timeout is now identified in
2537 the log output.
2538
9176e9f0
PH
2539PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2540 systems where "make" and "gmake" are different, calling "gmake" at top
2541 level broke things. I've arranged for the value of $(MAKE) to be passed
2542 from the Makefile to this script so that it can call the same version of
2543 "make".
2544
7982096b 2545
bbe902f0
PH
2546A note about Exim versions 4.44 and 4.50
2547----------------------------------------
2548
2549Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2550changes of various kinds. As a consequence, a big documentation update was
2551needed. This delayed the release for rather longer than seemed good, especially
2552in the light of a couple of (minor) security issues. Therefore, the changes
2553that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2554release. So 4.44 and 4.50 are in effect two different branches that both start
2555from 4.43.
2556
2557I have left the 4.50 change log unchanged; it contains all the changes since
25584.43. The change log for 4.44 is below; many of its items are identical to
2559those for 4.50. This seems to be the most sensible way to preserve the
2560historical information.
2561
2562
f7b63901 2563Exim version 4.50
495ae4b0
PH
2564-----------------
2565
5fe762f6
PH
2566 1. Minor wording change to the doc/README.SIEVE file.
2567
139059f6 2568 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2569 computation of the current number of files was incorrect.
495ae4b0 2570
7086e875
PH
2571 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2572 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2573 place.
2574
35af9f61
PH
2575 4. Give more explanation in the error message when the command for a transport
2576 filter fails to execute.
2577
b668c215
PH
2578 5. There are several places where Exim runs a non-Exim command in a
2579 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2580 was being done only for the command run by the queryprogram router. It is
2581 now done for all such subprocesses. The other cases are: ${run, transport
2582 filters, and the commands run by the lmtp and pipe transports.
2583
a494b1e1
PH
2584 6. Added CONFIGURE_GROUP build-time option.
2585
2586 7. Some older OS have a limit of 256 on the maximum number of file
2587 descriptors. Exim was using setrlimit() to set 1000 as a large value
2588 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2589 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2590
c5fcb476
PH
2591 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2592 was an oversight, and furthermore, ever since the addition of extra
2593 controls (e.g. 4.43/32), the checks on when to allow different forms of
2594 "control" were broken. There should now be diagnostics for all cases when a
2595 control that does not make sense is encountered.
2596
69358f02
PH
2597 9. Added the /retain_sender option to "control=submission".
2598
5be20824
PH
259910. $recipients is now available in the predata ACL (oversight).
2600
eb2c0248
PH
260111. Tidy the search cache before the fork to do a delivery from a message
2602 received from the command line. Otherwise the child will trigger a lookup
2603 failure and thereby defer the delivery if it tries to use (for example) a
2604 cached ldap connection that the parent has called unbind on.
2605
2a3eea10
PH
260612. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2607 of $address_data from the recipient verification was clobbered by the
2608 sender verification.
2609
261013. The value of address_data from a sender verification is now available in
2611 $sender_address_data in subsequent conditions in the ACL statement.
2612
23c7ff99
PH
261314. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2614
4deaf07d
PH
261515. Added a new option "connect=<time>" to callout options, to set a different
2616 connection timeout.
2617
926e1192
PH
261816. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2619 was its contents. (It was OK if the option was not defined at all.)
2620
650edc6f
PH
262117. A "Completed" log line is now written for messages that are removed from
2622 the spool by the -Mrm option.
2623
2c7db3f5
PH
262418. New variables $sender_verify_failure and $recipient_verify_failure contain
2625 information about exactly what failed.
2626
3d235903
PH
262719. Added -dd to debug only the daemon process.
2628
7c7ad977
PH
262920. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2630 handles timeouts, both on the server side and network timeouts. Renamed the
2631 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2632
981756db
PH
263321. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2634 It is now set to "smtps".
2635
d4eb88df
PH
263622. $host_address is now set to the target address during the checking of
2637 ignore_target_hosts.
2638
263923. When checking ignore_target_hosts for an ipliteral router, no host name was
2640 being passed; this would have caused $sender_host_name to have been used if
2641 matching the list had actually called for a host name (not very likely,
2642 since this list is usually IP addresses). A host name is now passed as
2643 "[x.x.x.x]".
2644
7d468ab8
PH
264524. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2646 code that specifies a non-restarting handler (typically sigaction() in
2647 modern systems) in an attempt to fix a rare and obscure crash bug.
2648
264925. Narrowed the window for a race in the daemon that could cause it to ignore
2650 SIGCHLD signals. This is not a major problem, because they are used only to
2651 wake it up if nothing else does.
2652
62c0818f
PH
265326. A malformed maildirsize file could cause Exim to calculate negative values
2654 for the mailbox size or file count. Odd effects could occur as a result.
2655 The maildirsize information is now recalculated if the size or filecount
2656 end up negative.
2657
26034054
PH
265827. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2659 support for a long time. Removed HAVE_SYS_VFS_H.
2660
af66f652
PH
266128. Installed the latest version of exipick from John Jetmore.
2662
90af77f4
PH
266329. In an address list, if the pattern was not a regular expression, an empty
2664 subject address (from a bounce message) matched only if the pattern was an
2665 empty string. Non-empty patterns were not even tested. This was the wrong
2666 because it is perfectly reasonable to use an empty address as part of a
2667 database query. An empty address is now tested by patterns that are
2668 lookups. However, all the other forms of pattern expect the subject to
2669 contain a local part and a domain, and therefore, for them, an empty
2670 address still always fails if the pattern is not itself empty.
2671
d8ef3577
PH
267230. Exim went into a mad DNS loop when attempting to do a callout where the
2673 host was specified on an smtp transport, and looking it up yielded more
2674 than one IP address.
2675
5cb8cbc6
PH
267631. Re-factored the code for checking spool and log partition space into a
2677 function that finds that data and another that does the check. The former
2678 is then used to implement four new variables: $spool_space, $log_space,
2679 $spool_inodes, and $log_inodes.
2680
14702f5b
PH
268132. The RFC2047 encoding function was originally intended for short strings
2682 such as real names; it was not keeping to the 75-character limit for
2683 encoded words that the RFC imposes. It now respects the limit, and
2684 generates multiple encoded words if necessary. To be on the safe side, I
2685 have increased the buffer size for the ${rfc2047: expansion operator from
2686 1024 to 2048 bytes.
2687
063b1e99
PH
268833. It is now permitted to omit both strings after an "if" condition; if the
2689 condition is true, the result is "true". As before, when the second string
2690 is omitted, a false condition yields an empty string. This makes it less
2691 cumbersome to write custom ACL and router conditions.
2692
652e1b65
PH
269334. Failure to deliver a bounce message always caused it to be frozen, even if
2694 there was an errors_to setting on the router. The errors_to setting is now
2695 respected.
2696
6f0c9a4f
PH
269735. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2698 canonical form (fully expanded) before being placed in
2699 $sender_host_address.
2700
33397d19
PH
270136. The table in the code that translates DNS record types into text (T_A to
2702 "A" for instance) was missing entries for NS and CNAME. It is just possible
2703 that this could have caused confusion if both these types were looked up
2704 for the same domain, because the text type is used as part of Exim's
2705 per-process caching. But the chance of anyone hitting this buglet seems
2706 very small.
2707
7bb56e1f
PH
270837. The dnsdb lookup has been extended in a number of ways.
2709
2710 (1) There is a new type, "zns", which walks up the domain tree until it
2711 finds some nameserver records. It should be used with care.
2712
ea3bc19b
PH
2713 (2) There is a new type, "mxh", which is like "mx" except that it returns
2714 just the host names, not the priorities.
2715
2716 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2717 looked up. The behaviour when one of the lookups defers can be
2718 controlled by a keyword.
7bb56e1f 2719
ea3bc19b 2720 (4) It is now possible to specify the separator character for use when
7bb56e1f 2721 multiple records are returned.
33397d19 2722
0bcb2a0e
PH
272338. The dnslists ACL condition has been extended: it is now possible to supply
2724 a list of IP addresses and/or domains to be looked up in a particular DNS
2725 domain.
2726
2ac0e484
PH
272739. Added log_selector=+queue_time_overall.
2728
4e1fde53
PH
272940. When running the queue in the test harness, wait just a tad after forking a
2730 delivery process, to get repeatability of debugging output.
2731
de365ded
PH
273241. Include certificate and key file names in error message when GnuTLS fails
2733 to set them up, because the GnuTLS error message doesn't include the name
2734 of the failing file when there is a problem reading it.
2735
f05da2e8
PH
273642. Allow both -bf and -bF in the same test run.
2737
d6453af2
PH
273843. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2739
f7b63901
PH
274044. The "Exiscan patch" is now merged into the mainline Exim source.
2741
274245. Sometimes the final signoff response after QUIT could fail to get
2743 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2744 < 0 before doing a fflush(). This bug looks as though it goes back to the
2745 introduction of TLS in release 3.20, but "sometimes" must have been rare
2746 because the tests only now provoked it.
2747
a444213a
PH
274846. Reset the locale to "C" after calling embedded Perl, in case it was changed
2749 (this can affect the format of dates).
2750
0ec020ea
PH
275147. exim_tidydb, when checking for the continued existence of a message for
2752 which it has found a message-specific retry record, was not finding
2753 messages that were in split spool directories. Consequently, it was
2754 deleting retry records that should have stayed in existence.
2755
b1206957
PH
275648. Steve fixed some bugs in eximstats.
2757
275849. The SPA authentication driver was not abandoning authentication and moving
2759 on to the next authenticator when an expansion was forced to fail,
2760 contradicting the general specification for all authenticators. Instead it
2761 was generating a temporary error. It now behaves as specified.
2762
26dd5a95
PH
276350. The default ordering of permitted cipher suites for GnuTLS was pessimal
2764 (the order specifies the preference for clients). The order is now AES256,
2765 AES128, 3DES, ARCFOUR128.
2766
343b2385
PH
276751. Small patch to Sieve code - explicitly set From: when generating an
2768 autoreply.
2769
1c5466b9
PH
277052. Exim crashed if a remote delivery caused a very long error message to be
2771 recorded - for instance if somebody sent an entire SpamAssassin report back
2772 as a large number of 550 error lines. This bug was coincidentally fixed by
2773 increasing the size of one of Exim's internal buffers (big_buffer) that
2774 happened as part of the Exiscan merge. However, to be on the safe side, I
2775 have made the code more robust (and fixed the comments that describe what
2776 is going on).
2777
55ee9ee3
PH
277853. Now that there can be additional text after "Completed" in log lines (if
2779 the queue_time_overall log selector is set), a one-byte patch to exigrep
2780 was needed to allow it to recognize "Completed" as not the last thing in
2781 the line.
2782
d38f8232
PH
278354. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2784 patch that reportedly fixes this has been added. I am not expert enough to
2785 create a test for it. This is what the patch creator wrote:
2786
2787 "I found a little strange behaviour of ldap code when working with
2788 Windows 2003 AD Domain, where users was placed in more than one
2789 Organization Units. When I tried to give exim partial DN, the exit code
2790 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2791 But simultaneously result of request was absolutely normal ldap result,
2792 so I produce this patch..."
2793
3295e65b
PH
2794 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2795 REFERENCE, so I have modified the code to exclude the patch when that macro
2796 is not defined.
2797
7102e136
PH
279855. Some experimental protocols are using DNS PTR records for new purposes. The
2799 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2800 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2801 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2802 CAN-2005-0021
7102e136 2803
3ca0ba97
PH
280456. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2805
c2bcbe20
PH
280657. Double the size of the debug message buffer (to 2048) so that more of very
2807 long debug lines gets shown.
2808
18ce445d
PH
280958. The exicyclog utility now does better if the number of log files to keep
2810 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2811
1f5b4c3d
PH
281259. Two changes related to the smtp_active_hostname option:
2813
2814 (1) $smtp_active_hostname is now available as a variable.
2815 (2) The default for smtp_banner uses $smtp_active_hostname instead
2816 of $primary_hostname.
2817
b975ba52
PH
281860. The host_aton() function is supposed to be passed a string that is known
2819 to be a valid IP address. However, in the case of IPv6 addresses, it was
2820 not checking this. This is a hostage to fortune. Exim now panics and dies
2821 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2822 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2823 components; fortuitously, this particular loophole had already been fixed
2824 by change 4.50/55 above.
2825
2826 If there are any other similar loopholes, the new check in host_aton()
2827 itself should stop them being exploited. The report I received stated that
2828 data on the command line could provoke the exploit when Exim was running as
2829 exim, but did not say which command line option was involved. All I could
2830 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2831 running as the user.
ea3a6f44 2832 CAN-2005-0021
85b87bc2
PH
2833
283461. There was a buffer overflow vulnerability in the SPA authentication code
2835 (which came originally from the Samba project). I have added a test to the
2836 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2837 CAN-2005-0022
b975ba52 2838
17ffcae7
PH
283962. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2840 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2841
d95f9fdb
PH
284263. The daemon start-up calls getloadavg() while still root for those OS that
2843 need the first call to be done as root, but it missed one case: when
2844 deliver_queue_load_max is set with deliver_drop_privilege. This is
2845 necessary for the benefit of the queue runner, because there is no re-exec
2846 when deliver_drop_privilege is set.
2847
86b8287f
PH
284864. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2849 This has been fixed.
2850
60dc5e56
PH
285165. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2852 was in use, was not putting the data itself into the right store pool;
2853 consequently, it could be overwritten for a subsequent message in the same
2854 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2855 the caching.)
2856
533244af
PH
285766. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2858
a5a28604
PH
285967. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2860 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2861 the function were treating the return as a boolean value, which happened to
2862 work because 0=false and not-0=true, but is not correct code.
2863
7e634d24
PH
286468. The host_aton() function was not handling scoped IPv6 addresses (those
2865 with, for example, "%eth0" on the end) correctly.
2866
3e11c26b
PH
286769. Fixed some compiler warnings in acl.c for the bitmaps specified with
2868 negated items (that is, ~something) in unsigned ints. Some compilers
2869 apparently mutter when there is no cast.
2870
6729cf78
PH
287170. If an address verification called from an ACL failed, and did not produce a
2872 user-specific message (i.e. there was only a "system" message), nothing was
2873 put in $acl_verify_message. In this situation, it now puts the system
2874 message there.
2875
00f00ca5
PH
287671. Change 4.23/11 added synchronization checking at the start of an SMTP
2877 session; change 4.31/43 added the unwanted input to the log line - except
2878 that it did not do this in the start of session case. It now does.
2879
c9bdd01c
PH
288072. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2881 This is wrong and can cause the other end to generate a synchronization
2882 error if it is another Exim or anything else that does the synchronization
2883 check. A QUIT command is no longer sent after a timeout.
2884
d43194df
PH
288573. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2886 during host lookups.
2887
fe5b5d0b
PH
288874. The defer_ok option of callout verification was not working if it was used
2889 when verifying addresses in header lines, that is, for this case:
2890
2891 verify = header_sender/callout=defer_ok
2892
76a2d7ba
PH
289375. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2894 those file descriptors could be used for SMTP connections. If anything
2895 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2896 could be sent to the SMTP client, causing chaos. The daemon now opens
2897 stdin, stdout, and stderr to /dev/null when it puts itself into the
2898 background.
2899
290076. Arrange for output from Perl's "warn" command to be written to Exim's main
2901 log by default. The user can override this with suitable Perl magic.
2902
04f7d5b9
PH
290377. The use of log_message on a "discard" ACL verb, which is supposed to add to
2904 the log message when discard triggers, was not working for the DATA ACL or
2905 for the non-SMTP ACL.
2906
bc60667e
PH
290778. Error message wording change in sieve.c.
2908
bb6e88ff
PH
290979. If smtp_accept_max_per_host was set, the number of connections could be
2910 restricted to fewer than expected, because the daemon was trying to set up
2911 a new connection before checking whether the processes handling previous
2912 connections had finished. The check for completed processes is now done
2913 earlier. On busy systems, this bug wouldn't be noticed because something
2914 else would have woken the daemon, and it would have reaped the completed
2915 process earlier.
2916
1e70f85b
PH
291780. If a message was submitted locally by a user whose login name contained one
2918 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2919 It caused a spool format error. I have fixed the spool reading code. A
2920 related problem was that the "from" clause in the Received: line became
2921 illegal because of the space(s). It is now covered by ${quote_local_part.
2922
292381. Included the latest eximstats from Steve (adds average sizes to HTML Top
2924 tables).
2925
4e01f9d6
PH
292682. Updated OS/Makefile-AIX as per message from Mike Meredith.
2927
1ee1cef2
PH
292883. Patch from Sieve maintainer to fix unterminated string problem in
2929 "vacation" handling.
2930
6e2b4ccc
PH
293184. Some minor changes to the Linux configuration files to help with other
2932 OS variants using glibc.
2933
8e669ac1
PH
293485. One more patch for Sieve to update vacation handling to latest spec.
2935
495ae4b0 2936
bbe902f0
PH
2937----------------------------------------------------
2938See the note above about the 4.44 and 4.50 releases.
2939----------------------------------------------------
2940
2941
2942Exim version 4.44
2943-----------------
2944
2945 1. Change 4.43/35 introduced a bug that caused file counts to be
2946 incorrectly computed when quota_filecount was set in an appendfile
2947 transport
2948
2949 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2950 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2951 place.
2952
2953 3. Give more explanation in the error message when the command for a transport
2954 filter fails to execute.
2955
2956 4. There are several places where Exim runs a non-Exim command in a
2957 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2958 was being done only for the command run by the queryprogram router. It is
2959 now done for all such subprocesses. The other cases are: ${run, transport
2960 filters, and the commands run by the lmtp and pipe transports.
2961
2962 5. Some older OS have a limit of 256 on the maximum number of file
2963 descriptors. Exim was using setrlimit() to set 1000 as a large value
2964 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2965 systems. I've change it so that if it can't get 1000, it tries for 256.
2966
2967 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2968 was an oversight, and furthermore, ever since the addition of extra
2969 controls (e.g. 4.43/32), the checks on when to allow different forms of
2970 "control" were broken. There should now be diagnostics for all cases when a
2971 control that does not make sense is encountered.
2972
2973 7. $recipients is now available in the predata ACL (oversight).
2974
2975 8. Tidy the search cache before the fork to do a delivery from a message
2976 received from the command line. Otherwise the child will trigger a lookup
2977 failure and thereby defer the delivery if it tries to use (for example) a
2978 cached ldap connection that the parent has called unbind on.
2979
2980 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2981 of $address_data from the recipient verification was clobbered by the
2982 sender verification.
2983
298410. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2985 was its contents. (It was OK if the option was not defined at all.)
2986
298711. A "Completed" log line is now written for messages that are removed from
2988 the spool by the -Mrm option.
2989
299012. $host_address is now set to the target address during the checking of
2991 ignore_target_hosts.
2992
299313. When checking ignore_target_hosts for an ipliteral router, no host name was
2994 being passed; this would have caused $sender_host_name to have been used if
2995 matching the list had actually called for a host name (not very likely,
2996 since this list is usually IP addresses). A host name is now passed as
2997 "[x.x.x.x]".
2998
299914. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3000 code that specifies a non-restarting handler (typically sigaction() in
3001 modern systems) in an attempt to fix a rare and obscure crash bug.
3002
300315. Narrowed the window for a race in the daemon that could cause it to ignore
3004 SIGCHLD signals. This is not a major problem, because they are used only to
3005 wake it up if nothing else does.
3006
300716. A malformed maildirsize file could cause Exim to calculate negative values
3008 for the mailbox size or file count. Odd effects could occur as a result.
3009 The maildirsize information is now recalculated if the size or filecount
3010 end up negative.
3011
301217. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3013 support for a long time. Removed HAVE_SYS_VFS_H.
3014
ea3a6f44 301518. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3016
301719. Allow an empty sender to be matched against a lookup in an address list.
3018 Previously the only cases considered were a regular expression, or an
3019 empty pattern.
3020
302120. Exim went into a mad DNS lookup loop when doing a callout where the
3022 host was specified on the transport, if the DNS lookup yielded more than
3023 one IP address.
3024
ea3a6f44
NM
302521. The RFC2047 encoding function was originally intended for short strings
3026 such as real names; it was not keeping to the 75-character limit for
3027 encoded words that the RFC imposes. It now respects the limit, and
3028 generates multiple encoded words if necessary. To be on the safe side, I
3029 have increased the buffer size for the ${rfc2047: expansion operator from
3030 1024 to 2048 bytes.
bbe902f0 3031
ea3a6f44
NM
303222. Failure to deliver a bounce message always caused it to be frozen, even if
3033 there was an errors_to setting on the router. The errors_to setting is now
3034 respected.
bbe902f0
PH
3035
303623. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3037 canonical form (fully expanded) before being placed in
3038 $sender_host_address.
3039
304024. Updated eximstats to version 1.33
3041
ea3a6f44
NM
304225. Include certificate and key file names in error message when GnuTLS fails
3043 to set them up, because the GnuTLS error message doesn't include the name
3044 of the failing file when there is a problem reading it.
bbe902f0
PH
3045
304626. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3047 As per change 25.
bbe902f0 3048
ea3a6f44
NM
304927. Reset the locale to "C" after calling embedded Perl, in case it was changed
3050 (this can affect the format of dates).
bbe902f0 3051
ea3a6f44
NM
305228. exim_tidydb, when checking for the continued existence of a message for
3053 which it has found a message-specific retry record, was not finding
3054 messages that were in split spool directories. Consequently, it was
3055 deleting retry records that should have stayed in existence.
bbe902f0
PH
3056
305729. eximstats updated to version 1.35
3058 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3059 1.35 - bugfix such that pie charts by volume are generated correctly
3060
ea3a6f44
NM
306130. The SPA authentication driver was not abandoning authentication and moving
3062 on to the next authenticator when an expansion was forced to fail,
3063 contradicting the general specification for all authenticators. Instead it
3064 was generating a temporary error. It now behaves as specified.
bbe902f0 3065
ea3a6f44
NM
306631. The default ordering of permitted cipher suites for GnuTLS was pessimal
3067 (the order specifies the preference for clients). The order is now AES256,
3068 AES128, 3DES, ARCFOUR128.
bbe902f0 3069
ea3a6f44
NM
307031. Small patch to Sieve code - explicitly set From: when generating an
3071 autoreply.
bbe902f0 3072
ea3a6f44
NM
307332. Exim crashed if a remote delivery caused a very long error message to be
3074 recorded - for instance if somebody sent an entire SpamAssassin report back
3075 as a large number of 550 error lines. This bug was coincidentally fixed by
3076 increasing the size of one of Exim's internal buffers (big_buffer) that
3077 happened as part of the Exiscan merge. However, to be on the safe side, I
3078 have made the code more robust (and fixed the comments that describe what
3079 is going on).
bbe902f0 3080
ea3a6f44
NM
308133. Some experimental protocols are using DNS PTR records for new purposes. The
3082 keys for these records are domain names, not reversed IP addresses. The
3083 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3084 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3085 CAN-2005-0021
3086
ea3a6f44
NM
308734. The host_aton() function is supposed to be passed a string that is known
3088 to be a valid IP address. However, in the case of IPv6 addresses, it was
3089 not checking this. This is a hostage to fortune. Exim now panics and dies
3090 if the condition is not met. A case was found where this could be provoked
3091 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3092 components; fortuitously, this particular loophole had already been fixed
3093 by change 4.50/55 or 4.44/33 above.
3094
3095 If there are any other similar loopholes, the new check in host_aton()
3096 itself should stop them being exploited. The report I received stated that
3097 data on the command line could provoke the exploit when Exim was running as
3098 exim, but did not say which command line option was involved. All I could
3099 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3100 running as the user.
bbe902f0
PH
3101 CAN-2005-0021
3102
ea3a6f44
NM
310335. There was a buffer overflow vulnerability in the SPA authentication code
3104 (which came originally from the Samba project). I have added a test to the
3105 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3106 CAN-2005-0022
3107
ea3a6f44
NM
310836. The daemon start-up calls getloadavg() while still root for those OS that
3109 need the first call to be done as root, but it missed one case: when
3110 deliver_queue_load_max is set with deliver_drop_privilege. This is
3111 necessary for the benefit of the queue runner, because there is no re-exec
3112 when deliver_drop_privilege is set.
bbe902f0 3113
ea3a6f44
NM
311437. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3115 was in use, was not putting the data itself into the right store pool;
3116 consequently, it could be overwritten for a subsequent message in the same
3117 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3118 the caching.)
bbe902f0 3119
ea3a6f44
NM
312038. Sometimes the final signoff response after QUIT could fail to get
3121 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3122 < 0 before doing a fflush(). This bug looks as though it goes back to the
3123 introduction of TLS in release 3.20, but "sometimes" must have been rare
3124 because the tests only now provoked it.
bbe902f0
PH
3125
3126
495ae4b0
PH
3127Exim version 4.43
3128-----------------
3129
3130 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3131 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3132 Now it returns an integer. A number of calls were still expecting a T/F
3133 return. Fortuitously, in all cases, the tests worked in OK situations,
3134 which is the norm. However, things would have gone wrong on any write
3135 failures on the smtp file descriptor. This function is used when sending
3136 messages over SMTP and also when doing verify callouts.
3137
3138 2. When Exim is called to do synchronous delivery of a locally submitted
3139 message (the -odf or -odi options), it no longer closes stderr before doing
3140 the delivery.
3141
3142 3. Implemented the mua_wrapper option.
3143
3144 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3145
3146 5. Implemented the functions header_remove(), header_testname(),
3147 header_add_at_position(), and receive_remove_recipient(), and exported them
3148 to local_scan().
3149
3150 6. If an ACL "warn" statement specified the addition of headers, Exim already
3151 inserted X-ACL-Warn: at the start if there was no header name. However, it
3152 was not making this test for the second and subsequent header lines if
3153 there were newlines in the string. This meant that an invalid header could
3154 be inserted if Exim was badly configured.
3155
3156 7. Allow an ACL "warn" statement to add header lines at the start or after all
3157 the Received: headers, as well as at the end.
3158
3159 8. Added the rcpt_4xx retry error code.
3160
3161 9. Added postmaster_mailfrom=xxx to callout verification option.
3162
316310. Added mailfrom=xxxx to the callout verification option, for verify=
3164 header_sender only.
3165
316611. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3167 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3168
316912. Inserted some casts to stop certain compilers warning when using pointer
3170 differences as field lengths or precisions in printf-type calls (mostly
3171 affecting debugging statements).
3172
317313. Added optional readline() support for -be (dynamically loaded).
3174
317514. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3176 same clock tick as a message's arrival, so that its received time was the
3177 same as the "first fail" time on the retry record, and that message
3178 remained on the queue past the ultimate address timeout, every queue runner
3179 would try a delivery (because it was past the ultimate address timeout) but
3180 after another failure, the ultimate address timeout, which should have then
3181 bounced the address, did not kick in. This was a "< instead of <=" error;
3182 in most cases the first failure would have been in the next clock tick
3183 after the received time, and all would be well.
3184
318515. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3186 being recognized when the domain list was tested by the match_domain
3187 condition in an expansion string.
3188
318916. Added the ${str2b64: operator.
3190
319117. Exim was always calling setrlimit() to set a large limit for the number of
3192 processes, without checking whether the existing limit was already
3193 adequate. (It did check for the limit on file descriptors.) Furthermore,
3194 errors from getrlimit() and setrlimit() were being ignored. Now they are
3195 logged to the main and panic logs, but Exim does carry on, to try to do its
3196 job under whatever limits there are.
3197
319818. Imported PCRE 5.0.
3199
320019. Trivial typo in log message " temporarily refused connection" (the leading
3201 space).
3202
320320. If the log selector return_path_on_delivery was set and an address was
3204 redirected to /dev/null, the delivery process crashed because it assumed
3205 that a return path would always be set for a "successful" delivery. In this
3206 case, the whole delivery is bypassed as an optimization, and therefore no
3207 return path is set.
3208
320921. Internal re-arrangement: the function for sending a challenge and reading
3210 a response while authentication was assuming a zero-terminated challenge
3211 string. It's now changed to take a pointer and a length, to allow for
3212 binary data in such strings.
3213
321422. Added the cyrus_sasl authenticator (code supplied by MBM).
3215
321623. Exim was not respecting finduser_retries when seeking the login of the
3217 uid under which it was called; it was always trying 10 times. (The default
3218 setting of finduser_retries is zero.) Also, it was sleeping after the final
3219 failure, which is pointless.
3220
322124. Implemented tls_on_connect_ports.
3222
322325. Implemented acl_smtp_predata.
3224
322526. If the domain in control=submission is set empty, Exim assumes that the
3226 authenticated id is a complete email address when it generates From: or
3227 Sender: header lines.
3228
322927. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3230 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3231 chown and chgrp in /bin and hostname in /usr/bin.
3232
323328. Exim was keeping the "process log" file open after each use, just as it
3234 does for the main log. This opens the possibility of it remaining open for
3235 long periods when the USR1 signal hits a daemon. Occasional processlog
3236 errors were reported, that could have been caused by this. Anyway, it seems
3237 much more sensible not to leave this file open at all, so that is what now
3238 happens.
3239
324029. The long-running daemon process does not normally write to the log once it
3241 has entered its main loop, and it closes the log before doing so. This is
3242 so that log files can straightforwardly be renamed and moved. However,
3243 there are a couple of unusual error situations where the daemon does write
3244 log entries, and I had neglected to close the log afterwards.
3245
324630. The text of an SMTP error response that was received during a remote
3247 delivery was being truncated at 512 bytes. This is too short for some of
3248 the long messages that one sometimes sees. I've increased the limit to
3249 1024.
3250
325131. It is now possible to make retry rules that apply only when a message has a
3252 specific sender, in particular, an empty sender.
3253
325432. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3255 it possible to be selective about when SMTP synchronization is enforced.
3256
325733. Added "control = caseful_local_part" and "control = "caselower_local_part".
3258
325932. Implemented hosts_connection_nolog.
3260
326133. Added an ACL for QUIT.
3262
326334. Setting "delay_warning=" to disable warnings was not working; it gave a
3264 syntax error.
3265
326635. Added mailbox_size and mailbox_filecount to appendfile.
3267
326836. Added control = no_multiline_responses to ACLs.
3269
327037. There was a bug in the logic of the code that waits for the clock to tick
3271 in the case where the clock went backwards by a substantial amount such
3272 that the microsecond fraction of "now" was more than the microsecond
3273 fraction of "then" (but the whole seconds number was less).
3274
327538. Added support for the libradius Radius client library this is found on
3276 FreeBSD (previously only the radiusclient library was supported).
3277
3278
3279Exim version 4.42
3280-----------------
3281
3282 1. When certain lookups returned multiple values in the form name=value, the
3283 quoting of the values was not always being done properly. Specifically:
3284 (a) If the value started with a double quote, but contained no whitespace,
3285 it was not quoted.
3286 (b) If the value contained whitespace other than a space character (i.e.
3287 tabs or newlines or carriage returns) it was not quoted.
3288 This fix has been applied to the mysql and pgsql lookups by writing a
3289 separate quoting function and calling it from the lookup code. The fix
3290 should probably also be applied to nisplus, ibase and oracle lookups, but
3291 since I cannot test any of those, I have not disturbed their existing code.
3292
3293 2. A hit in the callout cache for a specific address caused a log line with no
3294 reason for rejecting RCPT. Now it says "Previous (cached) callout
3295 verification failure".
3296
3297 3. There was an off-by-one bug in the queryprogram router. An over-long
3298 return line was truncated at 256 instead of 255 characters, thereby
3299 overflowing its buffer with the terminating zero. As well as fixing this, I
3300 have increased the buffer size to 1024 (and made a note to document this).
3301
3302 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3303 when Exim is waiting for an SMTP response from a remote server, Exim
3304 restarts its select() call on the socket, thereby resetting its timeout.
3305 This is not a problem when such interrupts are rare. Somebody set up a cron
3306 job to run exiwhat every 2 minutes, which is less than the normal select()
3307 timeout (5 or 10 minutes). This meant that the select() timeout never
3308 kicked in because it was always reset. I have fixed this by comparing the
3309 time when an interrupt arrives with the time at the start of the first call
3310 to select(). If more time than the timeout has elapsed, the interrupt is
3311 treated as a timeout.
3312
3313 5. Some internal re-factoring in preparation for the addition of Sieve
3314 extensions (by MH). In particular, the "personal" test is moved to a
3315 separate function, and given an option for scanning Cc: and Bcc: (which is
3316 not set for Exim filters).
3317
3318 6. When Exim created an email address using the login of the caller as the
3319 local part (e.g. when creating a From: or Sender: header line), it was not
3320 quoting the local part when it contained special characters such as @.
3321
3322 7. Installed new OpenBSD configuration files.
3323
3324 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3325 try to make them clearer.
3326
3327 9. Callout options, other than the timeout value, were being ignored when
3328 verifying sender addresses in header lines. For example, when using
3329
3330 verify = header_sender/callout=no_cache
3331
3332 the cache was (incorrectly) being used.
3333
333410. Added a missing instance of ${EXE} to the exim_install script; this affects
3335 only the Cygwin environment.
3336
333711. When return_path_on_delivery was set as a log selector, if different remote
3338 addresses in the same message used different return paths and parallel
3339 remote delivery occurred, the wrong values would sometimes be logged.
3340 (Whenever a remote delivery process finished, the return path value from
3341 the most recently started remote delivery process was logged.)
3342
334312. RFC 3848 specifies standard names for the "with" phrase in Received: header
3344 lines when AUTH and/or TLS are in use. This is the "received protocol"
3345 field. Exim used to use "asmtp" for authenticated SMTP, without any
3346 indication (in the protocol name) for TLS use. Now it follows the RFC and
3347 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3348 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3349 names appear in log lines as well as in Received: header lines.
3350
335113. Installed MH's patches for Sieve to add the "copy" and "vacation"
3352 extensions, and comparison tests, and to fix some bugs.
3353
335414. Changes to the "personal" filter test:
3355
3356 (1) The test was buggy in that it was just doing the equivalent of
3357 "contains" tests on header lines. For example, if a user's address was
3358 anne@some.where, the "personal" test would incorrectly be true for
3359
3360 To: susanne@some.where
3361
3362 This test is now done by extracting each address from the header in turn,
3363 and checking the entire address. Other tests that are part of "personal"
3364 are now done using regular expressions (for example, to check local parts
3365 of addresses in From: header lines).
3366
3367 (2) The list of non-personal local parts in From: addresses has been
3368 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3369 taken from the Sieve specification recommendations.
3370
3371 (3) If the message contains any header line starting with "List-" it is
3372 treated as non-personal.
3373
3374 (4) The test for "circular" in the Subject: header line has been removed
3375 because it now seems ill-conceived.
3376
337715. Minor typos in src/EDITME comments corrected.
3378
337916. Installed latest exipick from John Jetmore.
3380
338117. If headers_add on a router specified a text string that was too long for
3382 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3383 of string_sprintf() is now avoided.
3384
338518. $message_body_size was not set (it was always zero) when running the DATA
3386 ACL and the local_scan() function.
3387
338819. For the "mail" command in an Exim filter, no default was being set for
3389 the once_repeat time, causing a random time value to be used if "once" was
3390 specified. (If the value happened to be <= 0, no repeat happened.) The
3391 default is now 0s, meaning "never repeat". The "vacation" command was OK
3392 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3393 (I found it when inspecting the code).
3394
339520. There is now an overall timeout for performing a callout verification. It
3396 defaults to 4 times the callout timeout, which applies to individual SMTP
3397 commands during the callout. The overall timeout applies when there is more
3398 than one host that can be tried. The timeout is checked before trying the
3399 next host. This prevents very long delays if there are a large number of
3400 hosts and all are timing out (e.g. when the network connections are timing
3401 out). The value of the overall timeout can be changed by specifying an
3402 additional sub-option for "callout", called "maxwait". For example:
3403
3404 verify = sender/callout=5s,maxwait=20s
3405
340621. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3407 to the end before writing, but this should make it even safer).
3408
340922. Exim was forgetting that it had advertised PIPELINING for the second and
3410 subsequent messages on an SMTP connection. It was also not resetting its
3411 memory on STARTTLS and an internal HELO.
3412
341323. When Exim logs an SMTP synchronization error within a session, it now
3414 records whether PIPELINING has been advertised or not.
3415
341624. Added 3 instances of "(long int)" casts to time_t variables that were being
3417 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3418 rather than long int.
3419
342025. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3421
342226. Added the never_mail option to autoreply.
3423
3424
3425Exim version 4.41
3426-----------------
3427
3428 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3429 crash if the getsockname() call failed; this can happen if a connection is
3430 closed very soon after it is established. The problem was simply in the
3431 order in which certain operations were done, causing Exim to try to write
3432 to the SMTP stream before it had set up the file descriptor. The bug has
3433 been fixed by making things happen in the correct order.
3434
3435
3436Exim version 4.40
3437-----------------
3438
3439 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3440 before the connection was closed, thus losing the rejection response.
3441
3442 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3443 some early Solaris releases, but causes trouble in current releases where
3444 socklen_t is defined.
3445
3446 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3447 always exist.
3448
3449 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3450 configured.