Allow only absolute paths in TRUSTED_CONFIG_PREFIX_LIST, fix store leak
[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
fa32850b
DW
92DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
93 that rogue child processes cannot use them.
94
3346ab01 95
465e92cf
JJ
96Exim version 4.72
97-----------------
98
453a6645
PP
99JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
100 $data_path, and $header_path variables; fixed documentation bugs and
101 typos
465e92cf 102
453a6645
PP
103JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
104 exipick to access non-standard spools, including the "frozen" queue
105 (Finput)
edae0343 106
9bd3e22c
NM
107NM/01 Bugzilla 965: Support mysql stored procedures.
108 Patch from Alain Williams
109
bb576ff7
NM
110NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
111
5a1a5845
NM
112NM/03 Bugzilla 955: Documentation fix for max_rcpts.
113 Patch from Andreas Metzler
114
981a9fad
NM
115NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
116 Patch from Kirill Miazine
117
7fc497ee
NM
118NM/05 Bugzilla 671: Added umask to procmail example.
119
1a41defa
JJ
120JJ/03 installed exipick 20100323.0, fixing doc bug
121
a466095c 122NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 123 directory. Notification and patch from Dan Rosenberg.
a466095c 124
94a6bd0b
NM
125TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
126
127TK/02 Improve log output when DKIM signing operation fails.
128
129MH/01 Treat the transport option dkim_domain as a colon separated
130 list, not as a single string, and sign the message with each element,
131 omitting multiple occurences of the same signer.
132
c1b141a8
NM
133NM/07 Null terminate DKIM strings, Null initialise DKIM variable
134 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 135
b26eacf1 136NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
137 Patch by Simon Arlott
138
179c5980 139PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 140 MBX locking. Notification from Dan Rosenberg.
179c5980 141
9bd3e22c 142
7c6d71af
NM
143Exim version 4.71
144-----------------
145
7d9f747b 146TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 147
f013fb92
NM
148NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
149
0eb8eedd
NM
150NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
151
663ee6d9
NM
152NM/03 Bugzilla 847: Enable DNSDB lookup by default.
153
177ebd9b
NM
154NM/04 Bugzilla 915: Flag broken perl installation during build.
155
7c6d71af 156
210f147e
NM
157Exim version 4.70
158-----------------
159
cdd3bb85 160TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 161 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
162
163TK/02 Write list of recipients to X-Envelope-Sender header when building
164 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 165 Hirsch).
cdd3bb85
TK
166
167TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
168 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 169 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
170
171TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
172 by Mark Daniel Reidel <mr@df.eu>.
173
210f147e
NM
174NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
175 When building exim an external PCRE library is now needed -
176 PCRE is a system library on the majority of modern systems.
177 See entry on PCRE_LIBS in EDITME file.
178
deafd5b3
NM
179NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
180 conversation. Added nologin parameter to request.
7d9f747b 181 Patch contributed by Kirill Miazine.
deafd5b3 182
089793a4
TF
183TF/01 Do not log submission mode rewrites if they do not change the address.
184
5f16ca82
TF
185TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
186
dae9d94e 187NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 188 log files in place. Contributed by Roberto Lima.
dae9d94e 189
7d9f747b 190NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 191
06864c44
TF
192TF/03 Bugzilla 615: When checking the local_parts router precondition
193 after a local_part_suffix or local_part_prefix option, Exim now
194 does not use the address's named list lookup cache, since this
195 contains cached lookups for the whole local part.
196
65a7d8c3 197NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 198 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 199
23510047 200TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 201
7d9f747b 202NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 203
7d8eec3a 204NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 205 Patch provided by Jan Srzednicki.
6c588e74 206
89dec7b6
TF
207TF/05 Leading white space used to be stripped from $spam_report which
208 wrecked the formatting. Now it is preserved.
5f28a6e8 209
a99de90c
TF
210TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
211 that they are available at delivery time.
212
e2803e40
TF
213TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
214
7199e1ee
TF
215TF/08 TLS error reporting now respects the incoming_interface and
216 incoming_port log selectors.
217
e276e04b
TF
218TF/09 Produce a more useful error message if an SMTP transport's hosts
219 setting expands to an empty string.
220
ce552449 221NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 222 Patch provided by Phil Pennock.
ce552449 223
e765a0f1 224NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 225 Patch provided by Richard Godbee.
e765a0f1 226
4f054c63 227NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 228 acl_smtp_notquit, added index entry.
4f054c63 229
7d9f747b
PP
230NM/09 Bugzilla 787: Potential buffer overflow in string_format.
231 Patch provided by Eugene Bujak.
24c929a2 232
7d9f747b
PP
233NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
234 accept(). Patch provided by Maxim Dounin.
cf73943b 235
b52bc06e 236NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 237 Patch provided by Phil Pennock.
b52bc06e 238
447de4b0
NM
239NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
240
4c69d561 241NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 242 Patch provided by Brad "anomie" Jorsch.
4c69d561 243
d5c39246 244NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 245 Patch provided by Dean Brooks.
9b989985 246
0b23848a
TK
247TK/05 Add native DKIM support (does not depend on external libraries).
248
8f3414a1 249NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 250 Patch provided by Graeme Fowler.
e2aacdfd 251
fb6f955d
NM
252NM/16 Bugzilla 851: Documentation example syntax fix.
253
254NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 255
7d9f747b
PP
256NM/18 Bugzilla 894: Fix issue with very long lines including comments in
257 lsearch.
dbb0bf41 258
7d9f747b
PP
259NM/19 Bugzilla 745: TLS version reporting.
260 Patch provided by Phil Pennock.
f3766eb5 261
7d9f747b
PP
262NM/20 Bugzilla 167: bool: condition support.
263 Patch provided by Phil Pennock.
36f12725 264
7d9f747b
PP
265NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
266 clients. Patch provided by Phil Pennock.
e6060e2c 267
7d9f747b
PP
268NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
269 Patch provided by Brad "anomie" Jorsch.
5eb690a1 270
7d9f747b
PP
271NM/23 Bugzilla 687: Fix misparses in eximstats.
272 Patch provided by Heiko Schlittermann.
d5c13d66 273
7d9f747b
PP
274NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
275 Patch provided by Heiko Schlittermann.
b2335c0b 276
7d9f747b 277NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 278 plus update to original patch.
f4cd9433 279
7d9f747b 280NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 281
7d9f747b
PP
282NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
283 Patch provided by David Brownlee.
8dc71ab3 284
7d9f747b 285NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 286
7d9f747b 287NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 288
7d9f747b 289NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 290
7d9f747b 291NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 292
17792b53 293NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 294 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 295
7d9f747b
PP
296NM/33 Bugzilla 898: Transport filter timeout fix.
297 Patch by Todd Rinaldo.
52383f8f 298
7d9f747b
PP
299NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
300 Patch by Serge Demonchaux.
5ca6d115 301
7d9f747b
PP
302NM/35 Bugzilla 39: Base64 decode bug fixes.
303 Patch by Jakob Hirsch.
baee9eee 304
7d9f747b 305NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 306
7d9f747b 307NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 308
7d9f747b 309NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 310
7d9f747b 311NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 312
deafd5b3 313
47db1125
NM
314Exim version 4.69
315-----------------
316
4b3504d0
TK
317TK/01 Add preliminary DKIM support. Currently requires a forked version of
318 ALT-N's libdkim that I have put here:
319 http://duncanthrax.net/exim-experimental/
320
321 Note to Michael Haardt: I had to rename some vars in sieve.c. They
322 were called 'true' and it seems that C99 defines that as a reserved
323 keyword to be used with 'bool' variable types. That means you could
324 not include C99-style headers which use bools without triggering
325 build errors in sieve.c.
326
81ea09ca
NM
327NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
328 as mailq or other aliases. Changed the --help handling significantly
329 to do whats expected. exim_usage() emits usage/help information.
330
f13cddcb
SC
331SC/01 Added the -bylocaldomain option to eximstats.
332
7d9f747b 333NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 334
7d9f747b 335NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 336
7d9f747b 337NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
338
339
eb4c0de6
PH
340Exim version 4.68
341-----------------
342
343PH/01 Another patch from the Sieve maintainer.
344
6a3bceb1
PH
345PH/02 When an IPv6 address is converted to a string for single-key lookup
346 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
347 dots are used instead of colons so that keys in lsearch files need not
348 contain colons. This was done some time before quoting was made available
349 in lsearch files. However, iplsearch files do require colons in IPv6 keys
350 (notated using the quote facility) so as to distinguish them from IPv4
351 keys. This meant that lookups for IP addresses in host lists did not work
352 for iplsearch lookups.
353
354 This has been fixed by arranging for IPv6 addresses to be expressed with
355 colons if the lookup type is iplsearch. This is not incompatible, because
356 previously such lookups could never work.
357
358 The situation is now rather anomolous, since one *can* have colons in
359 ordinary lsearch keys. However, making the change in all cases is
360 incompatible and would probably break a number of configurations.
361
2e30fa9d
TK
362TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
363 version.
364
0806a9c5
MH
365MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
366 conversion specification without a maximum field width, thereby enabling
367 a rogue spamd server to cause a buffer overflow. While nobody in their
368 right mind would setup Exim to query an untrusted spamd server, an
369 attacker that gains access to a server running spamd could potentially
370 exploit this vulnerability to run arbitrary code as the Exim user.
371
ae276964
TK
372TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
373 $primary_hostname instead of what libspf2 thinks the hosts name is.
374
0f2cbd1b
MH
375MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
376 a directory entry by the name of the lookup key. Previously, if a
377 symlink pointed to a non-existing file or a file in a directory that
378 Exim lacked permissions to read, a lookup for a key matching that
379 symlink would fail. Now it is enough that a matching directory entry
380 exists, symlink or not. (Bugzilla 503.)
381
2b85bce7
PH
382PH/03 The body_linecount and body_zerocount variables are now exported in the
383 local_scan API.
384
93655c46
PH
385PH/04 Added the $dnslist_matched variable.
386
6c512171
PH
387PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
388 This means they are set thereafter only if the connection becomes
389 encrypted.
390
391PH/06 Added the client_condition to authenticators so that some can be skipped
392 by clients under certain conditions.
393
aa6dc513
PH
394PH/07 The error message for a badly-placed control=no_multiline_responses left
395 "_responses" off the end of the name.
396
a96603a0
PH
397PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
398
8f240103
PH
399PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
400 (without spaces) instead of just copying the configuration text.
401
402PH/10 Added the /noupdate option to the ratelimit ACL condition.
403
d677b2f2
PH
404PH/11 Added $max_received_linelength.
405
d52120f2
PH
406PH/12 Added +ignore_defer and +include_defer to host lists.
407
64f2600a
PH
408PH/13 Installed PCRE version 7.2. This needed some changes because of the new
409 way in which PCRE > 7.0 is built.
410
8669f003
PH
411PH/14 Implemented queue_only_load_latch.
412
a4dc33a8
PH
413PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
414 MAIL command. The effect was to mangle the value on 64-bit systems.
415
d6a60c0f
PH
416PH/16 Another patch from the Sieve maintainer.
417
8f128379
PH
418PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
419
8932dffe
PH
420PH/18 If a system quota error occurred while trying to create the file for
421 a maildir delivery, the message "Mailbox is full" was not appended to the
422 bounce if the delivery eventually timed out. Change 4.67/27 below applied
423 only to a quota excession during the actual writing of the file.
d6a60c0f 424
ddea74fa 425PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
426 characters?) which causes problems in log lines. The DN values are now
427 passed through string_printing() before being added to log lines.
428
ddea74fa 429PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
430 and InterBase are left for another time.)
431
ddea74fa
PH
432PH/21 Added message_body_newlines option.
433
ce9f225c
PH
434PH/22 Guard against possible overflow in moan_check_errorcopy().
435
19897d52
PH
436PH/23 POSIX allows open() to be a macro; guard against that.
437
bc64a74d
PH
438PH/24 If the recipient of an error message contained an @ in the local part
439 (suitably quoted, of course), incorrect values were put in $domain and
440 $local_part during the evaluation of errors_copy.
441
eb4c0de6 442
b4ed4da0
PH
443Exim version 4.67
444-----------------
445
22ad45c9
MH
446MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
447 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
448 Jan Srzednicki.
449
b4ed4da0
PH
450PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
451 issue a MAIL command.
452
431b7361
PH
453PH/02 In an ACL statement such as
454
455 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
456
457 if a client was not listed at all, or was listed with a value other than
458 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
459 the condition was not true (as it should be), so access was not denied.
460 The bug was that the ! inversion was incorrectly passed on to the second
461 item. This has been fixed.
462
463PH/03 Added additional dnslists conditions == and =& which are different from
464 = and & when the dns lookup returns more than one IP address.
465
83da1223
PH
466PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
467 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
468
54fc8428
PH
469PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
470 FSYNC, which compiles an option called disable_fsync that allows for
471 bypassing fsync(). The documentation is heavily laced with warnings.
472
34c5e8dd
SC
473SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
474
bbe15da8
PH
475PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
476 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
477 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
478 including adding "make clean"; (3) Added -fPIC when compiling the test
479 dynamically loaded module, to get rid of a warning.
480
0e8a9471
MH
481MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
482 message fails, move_frozen_messages = true and ignore_bounce_errors_after
483 = 0s. The bug is otherwise harmless.
484
f0872424
PH
485PH/07 There was a bug in the dovecot authenticator such that the value of
486 $auth1 could be overwritten, and so not correctly preserved, after a
487 successful authentication. This usually meant that the value preserved by
488 the server_setid option was incorrect.
489
b01dd148
PH
490PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
491
6bf342e1
PH
492PH/09 Installed PCRE release 7.0.
493
273f34d0
PH
494PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
495 run for batched SMTP input. It is now run at the start of every message
496 in the batch. While fixing this I discovered that the process information
497 (output by running exiwhat) was not always getting set for -bs and -bS
498 input. This is fixed, and it now also says "batched" for BSMTP.
499
cf8b11a5
PH
500PH/11 Added control=no_pipelining.
501
41c7c167
PH
502PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
503 patch, slightly modified), and move the expansion of helo_data till after
504 the connection is made in the smtp transport (so it can use these
505 values).
506
9c57cbc0
PH
507PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
508
f3f065bb
PH
509PH/14 Added log_selector = +pid.
510
047bdd8c
PH
511PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
512
0ce9abe6
PH
513PH/16 Add ${if forany and ${if forall.
514
0e22dfd1
PH
515PH/17 Added dsn_from option to vary the From: line in DSNs.
516
4c590bd1
PH
517PH/18 Flush SMTP output before performing a callout, unless control =
518 no_callout_flush is set.
519
09945f1e
PH
520PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
521 was true (the default) a successful delivery failed to delete the retry
522 item, thus causing premature timeout of the address. The bug is now
523 fixed.
524
c51b8e75
PH
525PH/20 Added hosts_avoid_pipelining to the smtp transport.
526
e28326d8
PH
527PH/21 Long custom messages for fakedefer and fakereject are now split up
528 into multiline reponses in the same way that messages for "deny" and
529 other ACL rejections are.
530
75b1493f
PH
531PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
532 with slight modification.
533
7c5214ec
PH
534PH/23 Applied sieve patches from the maintainer "tracking the latest notify
535 draft, changing the syntax and factoring some duplicate code".
536
4311097e
PH
537PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
538 for deliveries of the second and subsequent messages over the same SMTP
539 connection.
540
29f89cad
PH
541PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
542 ${reduce, with only minor "tidies".
543
5e687460
SC
544SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
545
c3611384
PH
546PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
547 expansion side effects.
548
5a11a7b4
PH
549PH/27 When a message times out after an over-quota error from an Exim-imposed
550 quota, the bounce message says "mailbox is full". This message was not
551 being given when it was a system quota that was exceeded. It now should
552 be the same.
553
0e20aff9
MH
554MH/03 Made $recipients available in local_scan(). local_scan() already has
555 better access to the recipient list through recipients_list[], but
556 $recipients can be useful in postmaster-provided expansion strings.
557
ca86f471
PH
558PH/28 The $smtp_command and $smtp_command_argument variables were not correct
559 in the case of a MAIL command with additional options following the
560 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
561 were accidentally chopped off.
562
a14e5636
PH
563PH/29 SMTP synchronization checks are implemented when a command is read -
564 there is a check that no more input is waiting when there shouldn't be
565 any. However, for some commands, a delay in an ACL can mean that it is
566 some time before the response is written. In this time, more input might
567 arrive, invalidly. So now there are extra checks after an ACL has run for
568 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
569 pipelining has not been advertised.
570
ec95d1a6
PH
571PH/30 MH's patch to allow iscntrl() characters to be list separators.
572
42855d71
PH
573PH/31 Unlike :fail:, a custom message specified with :defer: was not being
574 returned in the SMTP response when smtp_return_error_details was false.
575 This has been fixed.
576
57c2c631
PH
577PH/32 Change the Dovecot authenticator to use read() and write() on the socket
578 instead of the C I/O that was originally supplied, because problems were
579 reported on Solaris.
580
58c01c94
PH
581PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
582 Exim which did not show up earlier: it was assuming that a call to
583 SSL_CTX_set_info_callback() might give an error value. In fact, there is
584 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
585 was a macro that became an assignment, so it seemed to work. This has
586 changed to a proper function call with a void return, hence the compile
587 error. Exim's code has been fixed.
588
dee5a20a
PH
589PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
590 cpus.
591
d2ee6114
PH
592PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
593
b2d5182b
PH
594PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
595
79749a79
PH
596PH/37 If a message is not accepted after it has had an id assigned (e.g.
597 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
598 "Completed" line in the log. When some messages of this type were
599 selected by exigrep, they were listed as "not completed". Others were
600 picked up by some special patterns. I have improved the selection
601 criteria to be more general.
79749a79 602
c456d9bb
PH
603PH/38 The host_find_failed option in the manualroute router can now be set
604 to "ignore", to completely ignore a host whose IP address cannot be
605 found. If all hosts are ignored, the behaviour is controlled by the new
606 host_all_ignored option.
607
cd9868ec
PH
608PH/39 In a list of hosts for manualroute, if one item (either because of multi-
609 homing or because of multiple MX records with /mx) generated more than
610 one IP address, and the following item turned out to be the local host,
611 all the secondary addresses of the first item were incorrectly removed
612 from the list, along with the local host and any following hosts (which
613 is what is supposed to happen).
614
ebeaf996
PH
615PH/40 When Exim receives a message, it writes the login name, uid, and gid of
616 whoever called Exim into the -H file. In the case of the daemon it was
617 behaving confusingly. When first started, it used values for whoever
618 started the daemon, but after a SIGHUP it used the Exim user (because it
619 calls itself on a restart). I have changed the code so that it now always
620 uses the Exim user.
621
2679d413
PH
622PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
623 message are rejected with the same error (e.g. no authentication or bad
624 sender address), and a DATA command is nevertheless sent (as can happen
625 with PIPELINING or a stupid MUA), the error message that was given to the
626 RCPT commands is included in the rejection of the DATA command. This is
627 intended to be helpful for MUAs that show only the final error to their
628 users.
629
84024b72
PH
630PH/42 Another patch from the Sieve maintainer.
631
8005d38e
SC
632SC/02 Eximstats - Differentiate between permanent and temporary rejects.
633 Eximstats - Fixed some broken HTML links and added missing column headers
634 (Jez Hancock).
635 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
636 columns for Rejects, Temp Rejects, Ham, and Spam rows.
637
3298c6c6
SC
638SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
639
a43a27c5
PH
640PH/43 Yet another patch from the Sieve maintainer.
641
58eb016e 642PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
643 the response to the final '.' that terminates a message, but only in the
644 case where the client has not sent further data following the '.'
645 (unfortunately, this is allowed). However, in many cases there won't be
646 any further data because there won't be any more messages to send. A call
647 to select() can be used: if it shows that the input is "ready", there is
648 either input waiting, or the socket has been closed. An attempt to read
649 the next input character can distinguish the two cases. Previously, Exim
58eb016e 650 would have sent an OK response which the client would never have see.
563b63fa
PH
651 This could lead to message repetition. This fix should cure that, at
652 least in a lot of common cases.
58eb016e 653
b43a74ea
PH
654PH/45 Do not advertise STARTTLS in response to HELP unless it would be
655 advertised in response to EHLO.
656
b4ed4da0 657
5dd1517f
PH
658Exim version 4.66
659-----------------
660
661PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
662 fixed by 4.65/MH/01 (is this a record?) are fixed:
663
664 (i) An empty string was always treated as zero by the numeric comparison
665 operators. This behaviour has been restored.
666
667 (ii) It is documented that the numeric comparison operators always treat
668 their arguments as decimal numbers. This was broken in that numbers
669 starting with 0 were being interpreted as octal.
670
671 While fixing these problems I realized that there was another issue that
672 hadn't been noticed. Values of message_size_limit (both the global option
673 and the transport option) were treated as octal if they started with 0.
674 The documentation was vague. These values are now always treated as
675 decimal, and I will make that clear in the documentation.
676
677
93cfa765
TK
678Exim version 4.65
679-----------------
680
681TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
682 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
683 versions. (#438)
684
d6066548
MH
685MH/01 Don't check that the operands of numeric comparison operators are
686 integers when their expansion is in "skipping" mode (fixes bug
687 introduced by 4.64-PH/07).
688
4362ff0d
PH
689PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
690 child addresses, Exim now panics and dies. Previously, because the count
691 is held in a short int, deliveries were likely to be lost. As such a
692 large number of recipients for a single message is ridiculous
693 (performance will be very, very poor), I have chosen to impose a limit
694 rather than extend the field.
695
93cfa765 696
944e9e9c
TF
697Exim version 4.64
698-----------------
aa41d2de 699
21d74bd9
TK
700TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
701 leftover -K file (the existence of which was triggered by #402).
702 While we were at it, introduced process PID as part of the -K
703 filename. This should rule out race conditions when creating
704 these files.
705
706TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
707 processing considerably. Previous code took too long for large mails,
708 triggering a timeout which in turn triggers #401.
709
710TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
711 in the DK code in transports.c. sendfile() is not really portable,
712 hence the _LINUX specificness.
944e9e9c
TF
713
714TF/01 In the add_headers option to the mail command in an Exim filter,
715 there was a bug that Exim would claim a syntax error in any
716 header after the first one which had an odd number of characters
717 in the field name.
718
2b1c6e3a
PH
719PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
720 callout verification, Exim cached a "reject" for the entire domain. This
721 is correct for most verifications, but it is not correct for a recipient
722 verification with use_sender or use_postmaster set, because in that case
723 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
724 case of MAIL FROM:<> rejection from other early rejections (e.g.
725 rejection of HELO). When verifying a recipient using a non-null MAIL
726 address, the cache is ignored if it shows MAIL FROM:<> rejection.
727 Whatever the result of the callout, the value of the domain cache is
728 left unchanged (for any other kind of callout, getting as far as trying
729 RCPT means that the domain itself is ok).
730
1f872c80
PH
731PH/02 Tidied a number of unused variable and signed/unsigned warnings that
732 gcc 4.1.1 threw up.
733
734PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
735 manifest itself as EPIPE rather than ECONNECT. When tidying away a
736 session, the daemon ignores ECONNECT errors and logs others; it now
737 ignores EPIPE as well.
738
d203e649
PH
739PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
740 (quoted-printable decoding).
741
cc2ed8f7 742PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 743 later the small subsequent patch to fix an introduced bug.
f951fd57 744
ddfcd446
PH
745PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
746
d45b1de8
PH
747PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
748
749PH/08 An error is now given if message_size_limit is specified negative.
750
38a0a95f 751PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 752 to be given (somewhat) arbitrary names.
38a0a95f 753
a2405d83
JJ
754JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
755 in 4.64-PH/09.
756
757JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
758 miscellaneous code fixes
759
6ea85e9a
PH
760PH/10 Added the log_reject_target ACL modifier to specify where to log
761 rejections.
762
26da7e20
PH
763PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
764 hostname. This is wrong, because it relates to the incoming message (and
765 probably the interface on which it is arriving) and not to the outgoing
766 callout (which could be using a different interface). This has been
767 changed to use the value of the helo_data option from the smtp transport
768 instead - this is what is used when a message is actually being sent. If
769 there is no remote transport (possible with a router that sets up host
770 addresses), $smtp_active_hostname is used.
6ea85e9a 771
14aa5a05 772PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 773 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
774 (a) The code assumed that strncpy() returns a negative number on buffer
775 overflow, which isn't the case. Replaced with Exim's string_format()
776 function.
777 (b) There were several signed/unsigned issues. I just did the minimum
778 hacking in of casts. There is scope for a larger refactoring.
779 (c) The code used strcasecmp() which is not a standard C function.
780 Replaced with Exim's strcmpic() function.
781 (d) The code set only $1; it now sets $auth1 as well.
782 (e) A simple test gave the error "authentication client didn't specify
783 service in request". It would seem that Dovecot has changed its
784 interface. Fortunately there's a specification; I followed it and
785 changed what the client sends and it appears to be working now.
786
ff75a1f7
PH
787PH/13 Added $message_headers_raw to provide the headers without RFC 2047
788 decoding.
789
e6f6568e
PH
790PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
791 address A is aliased to B and C, where B exists and C does not. Without
792 -v the output is "A verified" because verification stops after a
793 successful redirection if more than one address is generated. However,
794 with -v the child addresses are also verified. Exim was outputting "A
795 failed to verify" and then showing the successful verification for C,
796 with its parentage. It now outputs "B failed to verify", showing B's
797 parentage before showing the successful verification of C.
798
d6f6e0dc
PH
799PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
800 look up a TXT record in a specific list after matching in a combined
801 list.
802
322050c2
PH
803PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
804 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
805 they consult the DNS. I had assumed they would set it the way they
806 wanted; and indeed my experiments on Linux seem to show that in some
807 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
808 To be on the safe side, however, I have now made the interface to
809 host_find_byname() similar to host_find_bydns(), with an argument
810 containing the DNS resolver options. The host_find_byname() function now
811 sets these options at its start, just as host_find_bydns() does. The smtp
812 transport options dns_qualify_single and dns_search_parents are passed to
813 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
814 of host_find_byname() use the default settings of RES_DEFNAMES
815 (qualify_single) but not RES_DNSRCH (search_parents).
816
08955dd3
PH
817PH/17 Applied (a modified version of) Nico Erfurth's patch to make
818 spool_read_header() do less string testing, by means of a preliminary
819 switch on the second character of optional "-foo" lines. (This is
820 overdue, caused by the large number of possibilities that now exist.
821 Originally there were few.) While I was there, I also converted the
822 str(n)cmp tests so they don't re-test the leading "-" and the first
823 character, in the hope this might squeeze out yet more improvement.
824
1eccaa59
PH
825PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
826 flag allowing group syntax was set by the header_syntax check but not
827 turned off, possible causing trouble later; (2) The flag was not being
828 set at all for the header_verify test, causing "group"-style headers to
829 be rejected. I have now set it in this case, and also caused header_
830 verify to ignore an empty address taken from a group. While doing this, I
831 came across some other cases where the code for allowing group syntax
832 while scanning a header line wasn't quite right (mostly, not resetting
833 the flag correctly in the right place). These bugs could have caused
834 trouble for malformed header lines. I hope it is now all correct.
835
602e59e5
PH
836PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
837 with the "reply" argument non-NULL. The code, however (which originally
838 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
839 but it didn't always do it. This confused somebody who was copying the
840 code for some other use. I have removed all the tests.
841
411ef850
PH
842PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
843 feature that was used to support insecure browsers during the U.S. crypto
844 embargo. It requires special client support, and Exim is probably the
845 only MTA that supported it -- and would never use it because real RSA is
846 always available. This code has been removed, because it had the bad
847 effect of slowing Exim down by computing (never used) parameters for the
848 RSA_EXPORT functionality.
849
7befa435
PH
850PH/21 On the advice of Timo Sirainen, added a check to the dovecot
851 authenticator to fail if there's a tab character in the incoming data
852 (there should never be unless someone is messing about, as it's supposed
853 to be base64-encoded). Also added, on Timo's advice, the "secured" option
854 if the connection is using TLS or if the remote IP is the same as the
855 local IP, and the "valid-client-cert option" if a client certificate has
856 been verified.
857
48da4259 858PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
859 authenticators. This can be used for authorization after authentication
860 succeeds. (In the case of plaintext, it servers for both authentication
861 and authorization.)
862
48da4259
PH
863PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
864 if any retry times were supplied.
865
d1d5595c
PH
866PH/24 Exim crashed if verify=helo was activated during an incoming -bs
867 connection, where there is no client IP address to check. In this
868 situation, the verify now always succeeds.
869
0ef732d9
PH
870PH/25 Applied John Jetmore's -Mset patch.
871
328895cc
PH
872PH/26 Added -bem to be like -Mset, but loading a message from a file.
873
fd700877
PH
874PH/27 In a string expansion for a processed (not raw) header when multiple
875 headers of the same name were present, leading whitespace was being
876 removed from all of them, but trailing whitespace was being removed only
877 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
878 before concatenation. Completely empty headers in a concatenation (as
879 before) are ignored.
fd700877 880
8dce1a6f
PH
881PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
882 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
883
17af4a17
PH
884PH/29 [Removed. This was a change that I later backed out, and forgot to
885 correct the ChangeLog entry (that I had efficiently created) before
886 committing the later change.]
f6c332bd
PH
887
888PH/30 Exim was sometimes attempting to deliver messages that had suffered
889 address errors (4xx response to RCPT) over the same connection as other
890 messages routed to the same hosts. Such deliveries are always "forced",
891 so retry times are not inspected. This resulted in far too many retries
892 for the affected addresses. The effect occurred only when there were more
893 hosts than the hosts_max_try setting in the smtp transport when it had
894 the 4xx errors. Those hosts that it had tried were not added to the list
895 of hosts for which the message was waiting, so if all were tried, there
896 was no problem. Two fixes have been applied:
897
898 (i) If there are any address or message errors in an SMTP delivery, none
899 of the hosts (tried or untried) are now added to the list of hosts
900 for which the message is waiting, so the message should not be a
901 candidate for sending over the same connection that was used for a
902 successful delivery of some other message. This seems entirely
903 reasonable: after all the message is NOT "waiting for some host".
904 This is so "obvious" that I'm not sure why it wasn't done
905 previously. Hope I haven't missed anything, but it can't do any
906 harm, as the worst effect is to miss an optimization.
907
908 (ii) If, despite (i), such a delivery is accidentally attempted, the
909 routing retry time is respected, so at least it doesn't keep
910 hammering the server.
911
c1114884
PH
912PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
913 in ${readsocket because some servers need this prod.
914
7a0743eb
PH
915PH/32 Added some extra debug output when updating a wait-xxx database.
916
0d85fa3f
PH
917PH/33 The hint "could be header name not terminated by colon", which has been
918 given for certain expansion errors for a long time, was not being given
919 for the ${if def:h_colon_omitted{... case.
920
1bf43b78
PH
921PH/34 The spec says: "With one important exception, whenever a domain list is
922 being scanned, $domain contains the subject domain." There was at least
923 one case where this was not true.
924
520de300
PH
925PH/35 The error "getsockname() failed: connection reset by peer" was being
926 written to the panic log as well as the main log, but it isn't really
927 panic-worthy as it just means the connection died rather early on. I have
928 removed the panic log writing for the ECONNRESET error when getsockname()
929 fails.
930
48c7f9e2
PH
931PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
932 runs only) independently of the message's sender address. This meant
933 that, if the 4xx error was in fact related to the sender, a different
934 message to the same recipient with a different sender could confuse
935 things. In particualar, this can happen when sending to a greylisting
936 server, but other circumstances could also provoke similar problems.
937 I have changed the default so that the retry time for these errors is now
938 based a combination of the sender and recipient addresses. This change
939 can be overridden by setting address_retry_include_sender=false in the
940 smtp transport.
941
99ea1c86
PH
942PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
943 remote server are returned as part of bounce messages. This was not
944 happening for LMTP over a pipe (the lmtp transport), but now it is the
945 same for both kinds of LMTP.
946
a2042e78
PH
947PH/38 Despite being documented as not happening, Exim was rewriting addresses
948 in header lines that were in fact CNAMEs. This is no longer the case.
949
4fbcfc2e
PH
950PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
951 and queue runs started by the daemon processed all messages. This has
952 been fixed so that -R and -S can now usefully be given with -q<time>.
953
aa41d2de
PH
954PH/40 Import PCRE release 6.7 (fixes some bugs).
955
af561417
PH
956PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
957
3cc66b45
PH
958PH/42 Give an error if -q is specified more than once.
959
194cc0e4
PH
960PH/43 Renamed the variables $interface_address and $interface_port as
961 $received_ip_address and $received_port, to make it clear that these
962 values apply to message reception, and not to the outgoing interface when
963 a message is delivered. (The old names remain recognized, of course.)
964
a401ddaa
PH
965PH/44 There was no timeout on the connect() call when using a Unix domain
966 socket in the ${readsocket expansion. There now is.
967
4e88a19f
PH
968PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
969 be meaningful with "accept".
970
d7d7b289
SC
971SC/01 Eximstats V1.43
972 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
973
974SC/02 Eximstats V1.44
975 Use a glob alias rather than an array ref in the generated
976 parser. This improves both readability and performance.
977
978SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
979 Collect SpamAssassin and rejection statistics.
980 Don't display local sender or destination tables unless
981 there is data to show.
982 Added average volumes into the top table text output.
983
984SC/04 Eximstats V1.46
985 Collect data on the number of addresses (recipients)
986 as well as the number of messages.
987
988SC/05 Eximstats V1.47
989 Added 'Message too big' to the list of mail rejection
990 reasons (thanks to Marco Gaiarin).
991
992SC/06 Eximstats V1.48
993 Mainlog lines which have GMT offsets and are too short to
994 have a flag are now skipped.
995
996SC/07 Eximstats V1.49 (Alain Williams)
997 Added the -emptyok flag.
998
999SC/08 Eximstats V1.50
1000 Fixes for obtaining the IP address from reject messages.
1001
0ea2a468
JJ
1002JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1003 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1004 whitesspace changes from 4.64-PH/27
1005
1006JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1007 match 4.64-PH/13
1008
1009JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1010 are found, allow negative numbers in numeric criteria)
1011
1012JJ/06 exipick.20061117.2, added new $message_body_missing variable
1013
1014JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1015 to match changes made in 4.64-PH/43
1016
8a10f5a4
PH
1017PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1018
30e18802
PH
1019PH/47 Put in an explicit test for a DNS lookup of an address record where the
1020 "domain" is actually an IP address, and force a failure. This locks out
1021 those revolvers/nameservers that support "A-for-A" lookups, in
1022 contravention of the specifications.
1023
55728a4f
PH
1024PH/48 When a host name was looked up from an IP address, and the subsequent
1025 forward lookup of the name timed out, the host name was left in
1026 $sender_host_name, contrary to the specification.
d7d7b289 1027
d7837193
PH
1028PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1029 restricted to single-key lookups, Exim was not diagnosing an error if
1030 * or *@ was used with a query-style lookup.
1031
87054a31
PH
1032PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1033
ea2c01d2
MH
1034MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1035 long ago, but noone interested enough thought of it. Let's just say that
1036 the "1.1" means that there are some new functions that weren't there at
1037 some point in the past.
1038
e4fa6968
PH
1039PH/51 Error processing for expansion failure of helo_data from an smtp
1040 transport during callout processing was broken.
1041
56f5d9bd
PH
1042PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1043 tested/used via the -bh/-bhc/-bs options.
1044
922e1c28
PH
1045PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1046 bug, fixed in subsequent PCRE releases).
1047
21eb6e72
PH
1048PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1049 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1050
a0540757
PH
1051PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1052
944e9e9c 1053
478be7b0
SC
1054Exim version 4.63
1055-----------------
1056
1057SC/01 Use a glob alias rather than an array ref in eximstats generated
1058 parser. This improves both readability and performance.
1059
1060SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1061 Don't display local sender or destination tables in eximstats unless
1062 there is data to show.
1063 Added average volumes into the eximstats top table text output.
1064
1065SC/03 Collect data on the number of addresses (recipients) as well
1066 as the number of messages in eximstats.
1067
2b965a65
TF
1068TF/01 Correct an error in the documentation for the redirect router. Exim
1069 does (usually) call initgroups() when daemonizing.
478be7b0 1070
45b91596
PH
1071TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1072 with consistent privilege compared to when running as a daemon.
478be7b0 1073
c59f5781
TF
1074TF/03 Note in the spec that $authenticated_id is not set for local
1075 submissions from trusted users.
1076
90fc3069
TF
1077TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1078 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1079
6083aca0
TF
1080TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1081 by adding some example configuration directives to the default
1082 configuration file. A little bit of work is required to uncomment the
1083 directives and define how usernames and passwords are checked, but
1084 there is now a framework to start from.
1085
765b530f
PH
1086PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1087 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1088 without this. I don't know how relevant this is to other LDAP libraries.
1089
4e167a8c
PH
1090PH/02 Add the verb name to the "unknown ACL verb" error.
1091
4608d683
PH
1092PH/03 Magnus Holmgren's patch for filter_prepend_home.
1093
b8dc3e4a
PH
1094PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1095
5418e93b
PH
1096PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1097 directory not expanded when it should be if an expanded home directory
1098 was set for the address (which is overridden by the transport).
1099
b4a9bda2
PH
1100PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1101 libradius.
1102
45b91596
PH
1103PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1104 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1105 because it is too late at that time, and has no effect.
1106
5547e2c5
PH
1107PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1108 security issue with \' (bugzilla #107). I could not use the
1109 PQescapeStringConn() function, because it needs a PGconn value as one of
1110 its arguments.
1111
dbcef0ea
PH
1112PH/08 When testing addresses using -bt, indicate those final addresses that
1113 are duplicates that would not cause an additional delivery. At least one
1114 person was confused, thinking that -bt output corresponded to deliveries.
1115 (Suppressing duplicates isn't a good idea as you lose the information
1116 about possibly different redirections that led to the duplicates.)
1117
25257489
PH
1118PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1119 systems where poll() doesn't work, in particular OS X.
1120
c816d124
PH
1121PH/10 Added more information to debugging output for retry time not reached.
1122
a9ccd69a
PH
1123PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1124 operations in malware.c.
1125
75fa1910
PH
1126PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1127 signatures.
1128
a7d7aa58
PH
1129PH/13 If write_rejectlog was set false when logging was sent to syslog with
1130 syslog_duplication set false, log lines that would normally be written
1131 both the the main log and to the reject log were not written to syslog at
1132 all.
1133
42119b09
PH
1134PH/14 In the default configuration, change the use of "message" in ACL warn
1135 statements to "add_header".
1136
41609df5
PH
1137PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1138 not followed by a command (e.g. "seen endif").
1139
a5bd321b
PH
1140PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1141 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1142 latter.
1143
e85a7ad5 1144PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1145 so that it is now:
1146
e85a7ad5
PH
1147 ${if or { \
1148 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1149 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1150 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1151 }{no}{yes}}
1152
e85a7ad5
PH
1153 The Auto-Submitted: and various List- headers are standardised, whereas I
1154 don't think Precedence: ever was.
5dff5817 1155
d8fe1c03
PH
1156PH/18 Refactored debugging code in route_finduser() to show more information,
1157 in particular, the error code if getpwnam() issues one.
1158
16282d2b
PH
1159PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1160 This is apparently needed in addition to the PH/07 change above to avoid
1161 any possible encoding problems.
1162
35d40a98
PH
1163PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1164 but not after initializing Perl.
1165
034d99ab
PH
1166PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1167 output them only if debugging. By default they are written stderr,
1168 apparently, which is not desirable.
1169
6ec97b1b
PH
1170PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1171 queries.
1172
e22ca4ac
JJ
1173JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1174 --not options
1175
1176JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1177
33d73e3b
PH
1178PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1179 authenticated or an ident call has been made. Suppress the default
1180 values for $authenticated_id and $authenticated_sender (but permit -oMai
1181 and -oMas) when testing with -bh.
1182
9ecb03f3
PH
1183PH/24 Re-jigged the order of the tests in the default configuration so that the
1184 tests for valid domains and recipients precede the DNS black list and CSA
1185 tests, on the grounds that those ones are more expensive.
1186
084efe8d
PH
1187PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1188 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1189 This bug exists in every version of Exim that I still have, right back to
1190 0.12.
1191
366fc9f0
PH
1192PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1193 However, an attempt to turn on case-sensitivity in a regex key by
1194 including (?-i) didn't work because the subject string was already
1195 lowercased, and the effects were non-intuitive. It turns out that a
1196 one-line patch can be used to allow (?-i) to work as expected.
1197
c59f5781 1198
c887c79e
TF
1199Exim version 4.62
1200-----------------
1201
1202TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1203 other effects) broke the use of negated acl sub-conditions.
1204
1cce3af8
PH
1205PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1206 patch).
1207
afb3eaaf
PH
1208PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1209 "Deny" causes Exim to reject the incoming connection with a 554 error.
1210 Unfortunately, if there is a major crisis, such as a disk failure,
1211 tcp-wrappers gives "deny", whereas what one would like would be some
1212 kind of temporary error. A kludge has been added to help with this.
1213 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1214 554 error is used if errno is still zero or contains ENOENT (which occurs
1215 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1216 451 error is used.
1217
e173618b
PH
1218PH/03 Add -lutil to the default FreeBSD LIBS setting.
1219
dd16e114
PH
1220PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1221 errors. Otherwise a message that provokes a temporary error (when other
1222 messages do not) can cause a whole host to time out.
1223
f7fd3850
PH
1224PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1225 addresses were routed directly to files or pipes from a redirect router.
1226 File deliveries just didn't batch; pipe deliveries might have suffered
1227 odd errors.
1228
d87df92c
PH
1229PH/06 A failure to get a lock for a hints database would erroneously always say
1230 "Failed to get write lock", even when it was really a read lock.
1231
7e9f683d
PH
1232PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1233 of 0600. This has been changed to use the value of the lockfile_mode
1234 option (which defaults to 0600).
1235
bfad5236
PH
1236PH/08 Applied small patch from the Sieve maintainer.
1237
01c490df
PH
1238PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1239 folder from quota calculations, a direct delivery into this folder messed
1240 up the contents of the maildirsize file. This was because the regex was
1241 used only to exclude .Trash (or whatever) when the size of the mailbox
1242 was calculated. There was no check that a delivery was happening into an
1243 excluded directory. This bug has been fixed by ignoring all quota
1244 processing for deliveries into excluded directories.
1245
d6629cdc
PH
1246PH/10 Added the maildirfolder_create_regex option to appendfile.
1247
1cce3af8 1248
214e2000
PH
1249Exim version 4.61
1250-----------------
1251
1252PH/01 The code for finding all the local interface addresses on a FreeBSD
1253 system running IPv6 was broken. This may well have applied to all BSD
1254 systems, as well as to others that have similar system calls. The broken
1255 code found IPv4 interfaces correctly, but gave incorrect values for the
1256 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1257 that it would not match correctly against @[] and not recognize the IPv6
1258 addresses as local.
1259
f9daeae0
PH
1260PH/02 The ipliteral router was not recognizing addresses of the form user@
1261 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1262
7e66e54d
PH
1263PH/03 Added disable_ipv6.
1264
c8ea1597
PH
1265PH/04 Changed $reply_address to use the raw form of the headers instead of the
1266 decoded form, because it is most often used to construct To: headers
1267 lines in autoreplies, and the decoded form may well be syntactically
1268 invalid. However, $reply_address has leading white space removed, and all
1269 newlines turned into spaces so that the autoreply transport does not
1270 grumble.
1271
911f6fde
PH
1272PH/05 If group was specified without a user on a router, and no group or user
1273 was specified on a transport, the group from the router was ignored.
1274
47ca6d6c
PH
1275PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1276 for visible compile-time settings that can be used to change these
1277 numbers, for those that want even more. Backwards compatibility with old
1278 spool files has been maintained. However, going back to a previous Exim
1279 release will lost any variables that are in spool files.
1280
ed0e9820
PH
1281PH/07 Two small changes when running in the test harness: increase delay when
1282 passing a TCP/IP connection to a new process, in case the original
1283 process has to generate a bounce, and remove special handling of
1284 127.0.0.2 (sic), which is no longer necessary.
1285
eff37e47
PH
1286PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1287 be the same on different OS.
1288
1921d2ea
PH
1289PH/09 Moved a debug statement in filter processing to avoid a race problem when
1290 testing.
1291
b3f69ca8
JJ
1292JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1293 whether --show-vars was specified or not
1294
1295JJ/02 exipick: Added support for new ACL variable spool format introduced
1296 in 4.61-PH/06
1297
424a1c63
PH
1298PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1299 syntactically invalid From: or Reply-to: line, and a filter used this to
1300 generate an autoreply, and therefore failed to obtain an address for the
1301 autoreply, Exim could try to deliver to a non-existent relative file
1302 name, causing unrelated and misleading errors. What now happens is that
1303 it logs this as a hard delivery error, but does not attempt to create a
1304 bounce message.
1305
7a100415
PH
1306PH/11 The exinext utility has a -C option for testing purposes, but although
1307 the given file was scanned by exinext itself; it wasn't being passed on
1308 when Exim was called.
1309
19b9dc85
PH
1310PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1311 an end-of-file indication when reading a command response.
1312
309bd837
PH
1313PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1314 compiled. In many other places in Exim, IPv6 addresses are always
1315 recognized, so I have changed this. It also means that IPv4 domain
1316 literals of the form [IPV4:n.n.n.n] are now always recognized.
1317
59e82a2a
PH
1318PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1319 used if the router is not running as root, for example, when verifying at
1320 ACL time, or when using -bh. The debugging output from this situation was
1321 non-existent - all you got was a failure to exec. I have made two
1322 changes:
1323
1324 (a) Failures to set uid/gid, the current directory, or a process leader
1325 in a subprocess such as that created by queryprogram now generate
1326 suitable debugging ouput when -d is set.
1327
1328 (b) The queryprogram router detects when it is not running as root,
1329 outputs suitable debugging information if -d is set, and then runs
1330 the subprocess without attempting to change uid/gid.
1331
9edc04ce
PH
1332PH/15 Minor change to Makefile for building test_host (undocumented testing
1333 feature).
1334
1349e1e5
PH
1335PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1336 additional section of a DNS packet that returns MX or SRV records.
1337 Instead, it always explicitly searches for A/AAAA records. This avoids
1338 major problems that occur when a DNS server includes only records of one
1339 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1340 fixed another bug: if SRV records were looked up and the corresponding
1341 address records were *not* found in the additional section, the port
1342 values from the SRV records were lost.
1343
ea49d0e1
PH
1344PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1345 using the correct key (the original address) when searching the retry
1346 rules in order to find which one to use for generating the retry hint.
1347
064a94c9
PH
1348PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1349 adding the default one. Similarly, if it contains a Reply-To: header, the
1350 errors_reply_to option, if set, is not used.
1351
727071f8
PH
1352PH/19 When calculating a retry time, Exim used to measure the "time since
1353 failure" by looking at the "first failed" field in the retry record. Now
1354 it does not use this if it is later than than the arrival time of the
1355 message. Instead it uses the arrival time. This makes for better
1356 behaviour in cases where some deliveries succeed, thus re-setting the
1357 "first failed" field. An example is a quota failure for a huge message
1358 when small messages continue to be delivered. Without this change, the
1359 "time since failure" will always be short, possible causing more frequent
1360 delivery attempts for the huge message than are intended.
dd16e114 1361 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1362
f78eb7c6
PH
1363PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1364 $1, $2, $3) because the numerical variables can be reset during some
1365 expansion items (e.g. "match"), thereby losing the authentication data.
1366
21c28500
PH
1367PH/21 Make -bV show the size of off_t variables so that the test suite can
1368 decide whether to run tests for quotas > 2G.
1369
1370PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1371 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1372 filecount value is greater than 2G or if a quota value is greater than 2G
1373 on a system where the size of off_t is not greater than 4, a panic error
1374 is given.
1375
1688f43b
PH
1376PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1377 never match. The debug and -bh output now contains an explicit error
1378 message indicating a malformed IPv4 address or mask.
1379
1380PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1381 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1382 PH/23 above applies.
1383
9675b384
PH
1384PH/25 Do not write to syslog when running in the test harness. The only
1385 occasion when this arises is a failure to open the main or panic logs
1386 (for which there is an explicit test).
1387
6a3f1455
PH
1388PH/26 Added the /no_tell option to "control=freeze".
1389
dac79d3e
PH
1390PH/27 If a host name lookup failed very early in a connection, for example, if
1391 the IP address matched host_lookup and the reverse lookup yielded a name
1392 that did not have a forward lookup, an error message of the form "no IP
1393 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1394 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1395
5977a0b3
PH
1396PH/28 An enabling patch from MH: add new function child_open_exim2() which
1397 allows the sender and the authenticated sender to be set when
1398 submitting a message from within Exim. Since child_open_exim() is
1399 documented for local_scan(), the new function should be too.
1400
c91535f3
PH
1401PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1402 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1403 results in an empty string is now treated as unset.
1404
0d46a8c8
PH
1405PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1406
278c6e6c
PH
1407PH/31 Added sender_verify_fail logging option.
1408
2cbb4081
PH
1409PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1410 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1411 tidied the source and removed it altogether.
1412
3eef829e
PH
1413PH/33 When a queue run was abandoned because the load average was too high, a
1414 log line was always written; now it is written only if the queue_run log
1415 selector is set. In addition, the log line for abandonment now contains
1416 information about the queue run such as the pid. This is always present
1417 in "start" and "stop" lines but was omitted from the "abandon" line.
1418
1ab95fa6
PH
1419PH/34 Omit spaces between a header name and the colon in the error message that
1420 is given when verify = headers_syntax fails (if there are lots of them,
1421 the message gets confusing).
1422
230205fc
PH
1423PH/35 Change the default for dns_check_names_pattern to allow slashes within
1424 names, as there are now some PTR records that contain slashes. This check
1425 is only to protect against broken name servers that fall over on strange
1426 characters, so the fact that it applies to all lookups doesn't matter.
1427
75e0e026
PH
1428PH/36 Now that the new test suite is complete, we can remove some of the
1429 special code in Exim that was needed for the old test suite. For example,
1430 sorting DNS records because real resolvers return them in an arbitrary
1431 order. The new test suite's fake resolver always returns records in the
1432 same order.
1433
1434PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1435 bounces) except when queue_only is set, to avoid logging races between
1436 the different processes.
1437
145396a6
PH
1438PH/38 Panic-die if .include specifies a non-absolute path.
1439
3cd34f13
PH
1440PH/39 A tweak to the "H" retry rule from its user.
1441
11121d3d
JJ
1442JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1443 a label. They prevented compilation on older perls.
1444
1445JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1446 a warning to be raised on newish perls.
1447
1448JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1449 on queue. Changes to match documented behaviour of showing count of
1450 messages matching specified criteria.
1451
8def5aaf
PH
1452PH/40 Changed the default ident timeout from 30s to 5s.
1453
929ba01c
PH
1454PH/41 Added support for the use of login_cap features, on those BSD systems
1455 that have them, for controlling the resources used by pipe deliveries.
1456
2632889e
PH
1457PH/42 The content-scanning code uses fopen() to create files in which to put
1458 message data. Previously it was not paying any attention to the mode of
1459 the files. Exim runs with umask(0) because the rest of the code creates
1460 files with open(), and sets the required mode explicitly. Thus, these
1461 files were ending up world-writeable. This was not a big issue, because,
1462 being within the spool directory, they were not world-accessible. I have
1463 created a function called modefopen, which takes an additional mode
1464 argument. It sets umask(777), creates the file, chmods it to the required
1465 mode, then resets the umask. All the relevant calls to fopen() in the
1466 content scanning code have been changed to use this function.
1467
944a9c55
PH
1468PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1469 to 24 hours. This avoids potential overflow problems when processing G
1470 and H retry rules. I suspect nobody ever tinkers with this value.
1471
4a23603b
PH
1472PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1473
4730f942
PH
1474PH/45 When the plaintext authenticator is running as a client, the server's
1475 challenges are checked to ensure they are valid base64 strings. By
1476 default, the authentication attempt is cancelled if an invalid string is
1477 received. Setting client_ignore_invalid_base64 true ignores these errors.
1478 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1479 they are received. Thus, the responses can be made to depend on the
1480 challenges. If an invalid string is ignored, an empty string is placed in
1481 the variable.
1482
30dba1e6
PH
1483PH/46 Messages that are created by the autoreply transport now contains a
1484 References: header, in accordance with RFCs 2822 and 3834.
1485
382afc6b
PH
1486PH/47 Added authenticated_sender_force to the smtp transport.
1487
a86229cf
PH
1488PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1489
50c99ba6
PH
1490PH/49 Installed latest patch from the Sieve maintainer.
1491
d35e429d
PH
1492PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1493 was also set, the appendfile transport was unnecessarily scanning a
1494 directory of message files (e.g. for maildir delivery) to find the count
1495 of files (along with the size), even though it did not need this
1496 information. It now does the scan only if it needs to find either the
1497 size of the count of files.
1498
f90d018c
PH
1499PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1500
75def545
PH
1501PH/52 Two bugs concerned with error handling when the smtp transport is
1502 used in LMTP mode:
1503
1504 (i) Exim was not creating retry information for temporary errors given
1505 for individual recipients after the DATA command when the smtp transport
1506 was used in LMTP mode. This meant that they could be retried too
1507 frequently, and not timed out correctly.
1508
1509 (ii) Exim was setting the flag that allows error details to be returned
1510 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1511 recipients that were returned after the DATA command.
1512
1513PH/53 This is related to PH/52, but is more general: for any failing address,
1514 when detailed error information was permitted to be returned to the
1515 sender, but the error was temporary, then after the final timeout, only
1516 "retry timeout exceeded" was returned. Now it returns the full error as
1517 well as "retry timeout exceeded".
1518
c46782ef
PH
1519PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1520 do this, and (what is worse) MTAs that accept it.
1521
71fafd95
PH
1522PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1523 will now be deprecated.
1524
2c5db4fd
PH
1525PH/56 New os.c-cygwin from the Cygwin maintainer.
1526
9cf6b11a
JJ
1527JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1528 formats (previously only available in exim formats via -bpr, -bpru,
1529 and -bpra. Now also available in native and exiqgrep formats)
1530
1531JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1532 with very large, slow to parse queues
1533
1534JJ/08 exipick: added ! as generic prefix to negate any criteria format
1535
1536JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1537
898d150f
PH
1538PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1539 responses to authentication challenges, though it was showing the
1540 challenges; (ii) I've removed the CR characters from the debug output for
1541 SMTP output lines.
1542
46218253
PH
1543PH/58 Allow for the insertion of a newline as well as a space when a string
1544 is turned into more than one encoded-word during RFC 2047 encoding. The
1545 Sieve code now uses this.
1546
e97957bc
PH
1547PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1548 data_4xx, lost_connection, tls_required.
1549
81e509d7
PH
1550PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1551 message was being sent as an SMTP response.
1552
3d240ff7
PH
1553PH/61 Add -l and -k options to exicyclog.
1554
b37c4101
PH
1555PH/62 When verifying, if an address was redirected to one new address, so that
1556 verification continued, and the new address failed or deferred after
1557 having set something in $address_data, the value of $address_data was not
1558 passed back to the ACL. This was different to the case when no
1559 redirection occurred. The value is now passed back in both cases.
1560
79378e0f
PH
1561PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1562 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1563 use login_cap.h, so on its own it isn't the distinguishing feature. The
1564 new name refers directly to the setclassresources() function.
1565
e49c7bb4
PH
1566PH/65 Added configuration files for NetBSD3.
1567
d114ec46
PH
1568PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1569
f3d7df6c
PH
1570PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1571 is preferred over IPv4.
1572
715ab376
PH
1573PH/68 The bounce_return_message and bounce_return_body options were not being
1574 honoured for bounces generated during the reception of non-SMTP messages.
1575 In particular, this applied to messages rejected by the ACL. This bug has
1576 been fixed. However, if bounce_return_message is true and bounce_return_
1577 body is false, the headers that are returned for a non-SMTP message
1578 include only those that have been read before the error was detected.
1579 (In the case of an ACL rejection, they have all been read.)
1580
6b31b150
PH
1581PH/69 The HTML version of the specification is now built in a directory called
1582 spec_html instead of spec.html, because the latter looks like a path with
1583 a MIME-type, and this confuses some software.
1584
1585PH/70 Catch two compiler warnings in sieve.c.
1586
d515a917
PH
1587PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1588 function verify_get_ident() calls ip_connect() to connect a socket, but
1589 if the "connect()" function timed out, ip_connect() used to close the
1590 socket. However, verify_get_ident() also closes the socket later, and in
1591 between Exim writes to the log, which may get opened at this point. When
1592 the socket was closed in ip_connect(), the log could get the same file
1593 descriptor number as the socket. This naturally causes chaos. The fix is
1594 not to close the socket in ip_connect(); the socket should be closed by
1595 the function that creates it. There was only one place in the code where
1596 this was missing, in the iplookup router, which I don't think anybody now
1597 uses, but I've fixed it anyway.
1598
9b8fadde
PH
1599PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1600 well as to direct DNS lookups. Otherwise the handling of names in host
1601 lists is inconsistent and therefore confusing.
1602
214e2000 1603
5de37277
PH
1604Exim version 4.60
1605-----------------
1606
cc38ddbf
PH
1607PH/01 Two changes to the default runtime configuration:
1608
1609 (1) Move the checks for relay_from_hosts and authenticated clients from
1610 after to before the (commented out) DNS black list checks.
1611
1612 (2) Add control=submission to the relay_from_hosts and authenticated
1613 clients checks, on the grounds that messages accepted by these
1614 statements are most likely to be submissions.
5de37277 1615
72fdd6ae
PH
1616PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1617
1618 (1) Generate an error if the third argument for the ${prvs expansion is
1619 not a single digit.
1620
1621 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1622 string.
1623
1624 (3) Reset the variables that are obtained from the first argument of
1625 ${prvscheck and used in the second argument before leaving the code,
1626 because their memory is reclaimed, so using them afterwards may do
1627 silly things.
1628
1629 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1630 one (it's much easier than Tom thought :-).
1631
1632 (5) Because of (4), we can now allow for the use of $prvscheck_result
1633 inside the third argument.
cb9328de 1634
cb741023
PH
1635PH/03 For some reason, the default setting of PATH when running a command from
1636 a pipe transport was just "/usr/bin". I have changed it to
1637 "/bin:/usr/bin".
1638
f174f16e
PH
1639PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1640 anything to be listed in the output from -bV.
b2f5a032 1641
c25242d7
PH
1642PH/05 When a filter generated an autoreply, the entire To: header line was
1643 quoted in the delivery log line, like this:
1644
1645 => >A.N.Other <ano@some.domain> <original@ddress> ...
1646
1647 This has been changed so that it extracts the operative address. There
1648 may be more than one such address. If so, they are comma-separated, like
1649 this:
1650
1651 => >ano@some.domain,ona@other.domain <original@ddress> ...
1652
82c19f95
PH
1653PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1654 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1655 not being looked up in the rDNS to get a host name, Exim was showing the
1656 IP address twice in Received: lines, even though the IP addresses were
1657 identical. For example:
1658
1659 Received: from [1.2.3.4] (helo=[1.2.3.4])
1660
1661 However, if the real host name was known, it was omitting the HELO data
1662 if it matched the actual IP address. This has been tidied up so that it
1663 doesn't show the same IP address twice.
1664
d7ffbc12
PH
1665PH/07 When both +timestamp and +memory debugging was on, the value given by
1666 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1667 called by the debug printing, thereby overwriting the timestamp buffer.
1668 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1669
9f526266
PH
1670PH/08 When the original message was included in an autoreply transport, it
1671 always said "this is a copy of the message, including all the headers",
1672 even if body_only or headers_only was set. It now gives an appropriate
1673 message.
1674
87fcc8b9
PH
1675PH/09 Applied a patch from the Sieve maintainer which:
1676
1677 o fixes some comments
1678 o adds the (disabled) notify extension core
1679 o adds some debug output for the result of if/elsif tests
1680 o points to the current vacation draft in the documentation
1681 and documents the missing references header update
1682
1683 and most important:
1684
1685 o fixes a bug in processing the envelope test (when testing
1686 multiple envelope elements, the last element determinted the
1687 result)
1688
456682f5
PH
1689PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1690 Electronic Mail") by including:
1691
1692 Auto-submitted: auto-generated
1693
1694 in the messages that it generates (bounce messages and others, such as
1695 warnings). In the case of bounce messages for non-SMTP mesages, there was
1696 also a typo: it was using "Auto_submitted" (underscore instead of
1697 hyphen). Since every message generated by Exim is necessarily in response
1698 to another message, thes have all been changed to:
1699
1700 Auto-Submitted: auto-replied
1701
1702 in accordance with these statements in the RFC:
1703
1704 The auto-replied keyword:
1705
1706 - SHOULD be used on messages sent in direct response to another
1707 message by an automatic process,
1708
1709 - MUST NOT be used on manually-generated messages,
1710
1711 - MAY be used on Delivery Status Notifications (DSNs) and Message
1712 Disposition Notifications (MDNs),
1713
1714 - MUST NOT be used on messages generated by automatic or periodic
1715 processes, except for messages which are automatic responses to
1716 other messages.
1717
3e46c1aa
PH
1718PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1719 to the default Received: header definition.
456682f5 1720
49826d12
PH
1721PH/12 Added log selector acl_warn_skipped (default on).
1722
eba0c039
PH
1723PH/13 After a successful wildlsearch lookup, discard the values of numeric
1724 variables because (a) they are in the wrong storage pool and (b) even if
1725 they were copied, it wouldn't work properly because of the caching.
1726
a0d6ba8a
PH
1727PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1728 checking when decoding. Apparently there are clients that generate
1729 overlong encoded strings. Why am I not surprised?
1730
f0917727
PH
1731PH/15 If the first argument of "${if match_address" was not empty, but did not
1732 contain an "@" character, Exim crashed. Now it writes a panic log message
1733 and treats the condition as false.
1734
096fee00
PH
1735PH/16 In autoreply, treat an empty string for "once" the same as unset.
1736
024bd3c2
PH
1737PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1738 extension "envelope-auth". The code is finished and in agreement with
1739 other implementations, but there is no documentation so far and in fact,
1740 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1741 not changing the active code.
1742
1743 Print executed "if" and "elsif" statements when debugging is used. This
1744 helps a great deal to understand what a filter does.
1745
1746 Document more things not specified clearly in RFC3028. I had all this
1747 sorted out, when out of a sudden new issues came to my mind. Oops."
1748
df199fec
PH
1749PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1750 (Bugzilla #53).
1751
d27f1df3
PH
1752PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1753 canonical form (as documented). However, after a host name lookup from
1754 the IP address, check_host() was doing a simple string comparison with
1755 addresses acquired from the DNS when checking that the found name did
1756 have the original IP as one of its addresses. Since any found IPv6
1757 addresses are likely to be in abbreviated form, the comparison could
1758 fail. Luckily, there already exists a function for doing the comparison
1759 by converting both addresses to binary, so now that is used instead of
1760 the text comparison.
1761
96776534
PH
1762PH/20 There was another similar case to PH/19, when a complete host name was
1763 given in a host list; looking up its IP address could give an abbreviated
1764 form, whereas the current host's name might or might not be abbreviated.
1765 The same fix has been applied.
1766
5de37277 1767
9a799bc0
PH
1768Exim version 4.54
1769-----------------
1770
1771PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1772 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1773 It now does.
1774
99a4b039
PH
1775PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1776 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1777
1778PH/03 Typo: missing ".o" in src/pcre/Makefile.
1779
4b233853
PH
1780PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1781 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1782 Also, for "Auto-Submitted", treat anything other than "no" as
1783 non-personal, in accordance with RFC 3834. (Previously it treated
1784 anything starting "auto-" as non-personal.)
1785
8857ccfd
PH
1786TF/01 The control=submission/name=... option had a problem with syntax
1787 errors if the name included a slash character. The /name= option
1788 now slurps the rest of the string, so it can include any characters
1789 but it must come last in the list of options (after /sender_retain
1790 or /domain=).
1791
433a2980
PH
1792PH/05 Some modifications to the interface to the fake nameserver for the new
1793 testing suite.
1794
3e46c1aa 1795
9a799bc0 1796
e3a311ba
TK
1797Exim version 4.53
1798-----------------
1799
1800TK/01 Added the "success_on_redirect" address verification option. See
1801 NewStuff for rationale and an example.
1802
13b685f9
PH
1803PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1804
395ff96d
PH
1805PH/02 Patch to exigrep to allow it to work on syslog lines.
1806
5b68f6e4
PH
1807PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1808 fread() to skip over the body file's header line, because in Cygwin the
1809 header line is locked and is inaccessible.
1810
1ab52c69
PH
1811PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1812 co-exist for some time) to make it clear that it is the Exim ID that is
1813 referenced, not the Message-ID: header line.
1814
b07e6aa3
PH
1815PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1816 string_format() function, because snprintf() does not exist on all
1817 operating systems.
1818
254e032f
PH
1819PH/06 The use of forbid_filter_existstest now also locks out the use of the
1820 ${stat: expansion item.
1821
3af76a81
PH
1822PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1823 protocol synchronization error", to keep the pedants happy.
1824
2548ba04
PH
1825PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1826 well as for IRIX systems, when gcc is being used. See the host.c source
1827 file for comments.
1828
b6c6011d
PH
1829PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1830
cf39cf57
PH
1831PH/10 Named domain lists were not working if used in a queue_smtp_domains
1832 setting.
1833
f1513293
PH
1834PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1835 transport and to the smtp transport in LMTP mode.
1836
727549a4
PH
1837TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1838
af46795e
PH
1839PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1840 run a filter in a subprocess. This could lead to confusion in subsequent
1841 lookups in the parent process. There should also be a search_tidyup() at
1842 the end of the subprocess.
1843
d7b47fd0
PH
1844PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1845 only if the host matched helo_try_verify_hosts, which caused the
1846 verification to occur when the EHLO/HELO command was issued. The ACL just
1847 tested the remembered result. Now, if a previous verification attempt has
1848 not happened, "verify = helo" does it there and then.
1849
ee744174
JJ
1850JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1851
b582ab87
PH
1852TK/03 Fix log output including CR from clamd.
1853
41a13e0a
PH
1854PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1855 exist provoked a memory error which could cause a segfault.
1856
f625cc5a
PH
1857PH/15 Installed PCRE 6.2
1858
1859PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1860
21f7af35
PH
1861PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1862 of the problem. Specifically, suggested +O2 rather than +O1 for the
1863 HP-UX compiler.
1864
31480e42
PH
1865PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1866
2d280592
PH
1867PH/20 If a delivery was routed to a non-standard port by means of an SRV
1868 record, the port was not correctly logged when the outgoing_port log
1869 selector was set (it logged the transort's default port).
1870
7cd1141b
PH
1871PH/21 Added support for host-specific ports to manualroute, queryprogram,
1872 fallback_hosts, and "hosts" in the smtp transport.
1873
1874PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1875 host errors such as "Connection refused".
1876
750af86e
PH
1877PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1878 authentication with radiusclient 0.4.9:
1879
1880 - Error returned from rc_read_config was caught wrongly
1881 - Username/password not passed on to radius server due to wrong length.
1882
1883 The presumption is that some radiusclient API changes for 4.51/PH/17
1884 were not taken care of correctly. The code is still untested by me (my
1885 Linux distribution still has 0.3.2 of radiusclient), but it was
1886 contributed by a Radius user.
1887
1888PH/24 When doing a callout, the value of $domain wasn't set correctly when
1889 expanding the "port" option of the smtp transport.
1890
4304270b
TK
1891TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1892 while reading a MIME header. Thanks to Tom Hughes for a patch.
1893
750af86e
PH
1894PH/24 Include config.h inside local_scan.h so that configuration settings are
1895 available.
1896
64ffc24f
PH
1897PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1898 that in an ACL for RCPT (for example), you can examine exactly what was
1899 received.
1900
5dd9625b
PH
1901PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1902 commands, but it was not correctly comparing the address with the actual
1903 client host address. Thus, it would show the EHLO address in Received:
1904 header lines when this was not necessary.
1905
5591031b
PH
1906PH/27 Added the % operator to ${eval:}.
1907
ba18e66a
PH
1908PH/28 Exim tries to create and chdir to its spool directory when it starts;
1909 it should be ignoring failures (because with -C, for example, it has lost
1910 privilege). It wasn't ignoring creation failures other than "already
1911 exists".
1912
9cec981f
PH
1913PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1914 -bV or -d is used.
1915
aa2b5c79
PH
1916PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1917 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1918 too many continuations, the temporary file was not being removed, and the
1919 return code was incorrect.
aa2b5c79 1920
48a53b7f
PH
1921PH/31 Missing "BOOL" in function definition in filtertest.c.
1922
1c59d63b
PH
1923PH/32 Applied Sieve patches from the maintainer.
1924
671012da
TK
1925TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1926
1509d3a8
PH
1927PH/33 Added "verify = not_blind".
1928
1929PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1930 Local/Makefile (with some defaults set). These are used in built scripts
1931 such as exicyclog, but they have never been used in the exim_install
1932 script (though there are many overriding facilities there). I have
1933 arranged that the exim_install script now takes note of these two
1934 settings.
1935
1936PH/35 Installed configuration files for Dragonfly.
1937
2fe1a124
PH
1938PH/36 When a locally submitted message by a trusted user did not contain a
1939 From: header, and the sender address was obtained from -f or from an SMTP
1940 MAIL command, and the trusted user did not use -F to supply a sender
1941 name, $originator_name was incorrectly used when constructing a From:
1942 header. Furthermore, $originator_name was used for submission mode
1943 messages from external hosts without From: headers in a similar way,
1944 which is clearly wrong.
1945
8800895a
PH
1946PH/37 Added control=suppress_local_fixups.
1947
ccfdb010
PH
1948PH/38 When log_selector = +received_sender was set, and the addition of the
1949 sender made the log line's construction buffer exactly full, or one byte
1950 less than full, an overflow happened when the terminating "\n" was
1951 subsequently added.
1952
1130bfb0
PH
1953PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1954 when the result of a list match is failure because a DNS lookup failed.
1955
ebcb507f
PH
1956PH/40 RM_COMMAND is now used in the building process.
1957
c35e155c
PH
1958PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1959 the "build-* directories that it finds.
1960
95d1f782
PH
1961PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1962 address in a domain literal was a prefix of an interface address.
1963
fd6de02e
PH
1964PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1965 when verifying a sender address, unless rewrite_headers is false.
1966
58de37c5
PH
1967PH/44 Wrote a long comment about why errors_to addresses are verified as
1968 recipients, not senders.
1969
261cf466
TF
1970TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1971 the ratelimit ACL was added.
1972
3ee512ff
PH
1973PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1974
e08c430f
PH
1975PH/46 Added extra information about PostgreSQL errors to the error string.
1976
bef5a11f
PH
1977PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1978 avoiding the need to install special zones in a real server. This is
1979 backwards compatible; if it can't find the fake resolver, it drops back.
1980 Thus, both old and new test suites can be run.
1981
7546de58
TF
1982TF/02 Added util/ratelimit.pl
1983
e5d5a95f
TF
1984TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1985 clock is set back in time.
1986
2e88a017
TF
1987TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1988 Candler <B.Candler@pobox.com>.
1989
a5f65aa4
TF
1990TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1991 OK for addresses that are the result of redirections.
1992
e7726cbf
PH
1993PH/48 A number of further additions for the benefit of the new test suite,
1994 including a fake gethostbyname() that interfaces to the fake DNS resolver
1995 (see PH/47 above).
1996
a7fdad5b
TF
1997TF/06 The fix for widen_domains has also been applied to qualify_single and
1998 search_parents which are the other dnslookup options that can cause
1999 header rewrites.
2000
6af56900
PH
2001PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2002 type ("H").
2003
0925ede6
PH
2004PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2005
66afa403
TF
2006TF/07 Exim produced the error message "an SRV record indicated no SMTP
2007 service" if it encountered an MX record with an empty target hostname.
2008 The message is now "an MX or SRV record indicated no SMTP service".
2009
0154e85a
TF
2010TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2011 if the DNS of the sending site is misconfigured. This is quite a
2012 common situation. This change restores the behaviour of treating a
2013 helo verification defer as a failure.
2014
16f12c76
PH
2015PH/51 If self=fail was set on a router, the bounce message did not include the
2016 actual error message.
2017
bbe902f0 2018
e5a9dba6
PH
2019Exim version 4.52
2020-----------------
2021
2022TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2023
22c3b60b
PH
2024PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2025 command itself ended in error, the underlying message about the transport
2026 filter timeout was being overwritten with the pipe command error. Now the
2027 underlying error message should be appended to the second error message.
2028
06a9b4b5
PH
2029TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2030
c1ac6996
PH
2031PH/02 Reduce the amount of output that "make" produces by default. Full output
2032 can still be requested.
2033
9c7a242c
PH
2034PH/03 The warning log line about a condition test deferring for a "warn" verb
2035 was being output only once per connection, rather than after each
2036 occurrence (because it was using the same function as for successful
2037 "warn" verbs). This seems wrong, so I have changed it.
2038
87ba3f5f
PH
2039TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2040 it should not have, which might have caused a crash in the right
2041 circumstances, but probably never did.
2042
2043PH/04 Installed a modified version of Tony Finch's patch to make submission
2044 mode fix the return path as well as the Sender: header line, and to
2045 add a /name= option so that you can make the user's friendly name appear
2046 in the header line.
2047
29aba418
TF
2048TF/03 Added the control = fakedefer ACL modifier.
2049
fe0dab11
TF
2050TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2051 Mark Lowes for thorough testing.
870f6ba8 2052
11d337a4
TK
2053TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2054
2055TK/03 Merged latest SRS patch from Miles Wilton.
2056
415c8f3b
PH
2057PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2058 with the definition in sysexits.h (which is #included earlier).
2059 Fortunately, Exim does not actually use EX_OK. The code used to try to
2060 preserve the sysexits.h value, by assumimg that macro definitions were
2061 scanned for macro replacements. I have been disabused of this notion,
2062 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2063
958541e9
PH
2064PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2065 in the smtp transport. When a block could not be written in a single
2066 write() function, the timeout was being re-applied to each part-write.
2067 This seems wrong - if the receiver was accepting one byte at a time it
2068 would take for ever. The timeout is now adjusted when this happens. It
2069 doesn't have to be particularly precise.
2070
c206415f
TK
2071TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2072 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2073
2a4be8f9
PH
2074PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2075 without a domain if the check to <postmaster@domain> fails.
2076
1cba11c5
SC
2077SC/01 Eximstats: added -xls and the ability to specify output files
2078 (patch written by Frank Heydlauf).
2079
2080SC/02 Eximstats: use FileHandles for outputing results.
2081
2082SC/03 Eximstats: allow any combination of xls, txt, and html output.
2083
2084SC/04 Eximstats: fixed display of large numbers with -nvr option
2085
2086SC/05 Eximstats: fixed merging of reports with empty tables.
2087
2088SC/06 Eximstats: added the -include_original_destination flag
2089
2090SC/07 Eximstats: removed tabs and trailing whitespace.
2091
1005d00e
TK
2092TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2093
2094TK/06 MBOX spool code: Add real "From " MBOX separator line
2095 so the .eml file is really in mbox format (even though
2096 most programs do not really care). Patch from Alex Miller.
2097
2098TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2099 The latter is generated from $received_to and is only set if the
2100 message has one envelope recipient. SA can use these headers,
2101 obviously out-of-the-box. Patch from Alex Miller.
2102
9b4768fa
PH
2103PH/08 The ${def test on a variable was returning false if the variable's
2104 value was "0", contrary to what the specification has always said!
2105 The result should be true unless the variable is empty.
2106
2107PH/09 The syntax error of a character other than { following "${if
2108 def:variable_name" (after optional whitespace) was not being diagnosed.
2109 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2110 accidental colon was present, for example, could give incorrect results.
2111
0d7eb84a
PH
2112PH/10 Tidied the code in a number of places where the st_size field of a stat()
2113 result is used (not including appendfile, where other changes are about
2114 to be made).
2115
2116PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2117 This involved changing a lot of size variables from int to off_t. It
2118 should work with maildirs and everything.
2119
40727bee
TK
2120TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2121 spamd dying while we are connected to it.
2122
554d2369
TF
2123TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2124 <jgh@wizmail.org>
2125
1f922db1
PH
2126PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2127 function for BDB 4.3.
2128
ef213c3b
PH
2129PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2130
8ac170f3
PH
2131PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2132 the sources for PCRE have been re-arranged and more files are now
2133 involved.
2134
b1c749bb
PH
2135PH/15 The code I had for printing potentially long long variables in PH/11
2136 above was not the best (it lost precision). The length of off_t variables
2137 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2138 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2139 to be "long long int" or "long int". This is needed for the internal
2140 formatting function string_vformat().
b1c749bb 2141
4aac9b49
PH
2142PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2143 the configuration file to be ":syslog", then the script "guesses" where
2144 the logs files are, rather than using the compiled in default. In our
2145 case the guess is not the same as the compiled default, so the script
2146 suddenly stopped working when I started to use syslog. The patch checks
2147 to see if log_file_path is "". If so, it attempts to read it from exim
2148 with no configuration file to get the compiled in version, before it
2149 falls back to the previous guessing code."
2150
294520c8
TK
2151TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2152 implementing BATV in an Exim configuration. See NewStuff for the gory
2153 details.
2154
5bd022fe
PH
2155PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2156 Makefile that are specific to HP-UX.
2157
90e9ce59
PH
2158PH/18 If the "use_postmaster" option was set for a recipient callout together
2159 with the "random" option, the postmaster address was used as the MAIL
2160 FROM address for the random test, but not for the subsequent recipient
2161 test. It is now used for both.
2162
5ea81592
PH
2163PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2164 patch removes a few documentation additions to RFC 3028, because the
2165 latest draft now contains them. It adds the new en;ascii-case comparator
2166 and a new error check for 8bit text in MIME parts. Comparator and
2167 require names are now matched exactly. I enabled the subaddress
2168 extension, but it is not well tested yet (read: it works for me)."
2169
c6c2dc1d
PH
2170PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2171 rework some of the code of TK/09 above to avoid the hardwired use of
2172 "%lld" and "long long". Replaced the call to snprintf() with a call to
2173 string_vformat().
2174
fffffe4c
PH
2175PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2176 records point to non-existent hosts", "retry timeout exceeded", and
2177 "retry time not reached for any host after a long failure period".
ca02eafb 2178
9a26b6b2
PH
2179PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2180 experimental DomainKeys support:
2181
2182 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2183 (2) On an error such as an illegally used "control", the wrong name for
2184 the control was given.
2185
2186 These problems did NOT occur unless DomainKeys support was compiled.
2187
4aee0225
PH
2188PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2189
32d668a5
PH
2190PH/24 Added ${if match_ip condition.
2191
8187c3f3
PH
2192PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2193 databases so that it will be absolutely obvious if a crash occurs in the
2194 DB library. This is a regular occurrence (often caused by mis-matched
2195 db.h files).
2196
ff790e47 2197PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2198 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2199 picked up on a user's system that detects such things. There doesn't seem
2200 to be a gcc warning option for this - only an attribute that has to be
2201 put on the function's prototype. It seems that in Fedora Core 4 they have
2202 set this on a number of new functions. No doubt there will be more in due
2203 course.
ff790e47 2204
5417f6d1
PH
2205PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2206 specify a transport. However, if an address that was verified by such a
2207 router was the subject of a callout, Exim crashed because it tried to
2208 read the rcpt_include_affixes from the non-existent transport. Now it
2209 just assumes that the setting of that option is false. This bug was
2210 introduced by 4.51/PH/31.
2211
59cf8544
PH
2212PH/28 Changed -d+all to exclude +memory, because that information is very
2213 rarely of interest, but it makes the output a lot bigger. People tend to
2214 do -d+all out of habit.
2215
e7ad8a65
PH
2216PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2217 code in os-type was giving problems when libc.so lives in lib64, like on
2218 x86_64 Fedora Core.
2219
ade42478
PH
2220PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2221 aren't the modern standard, and it seems that some systems' include files
2222 don't always have them. Exim was already checking for some of the newer
2223 ones like T_AAAA, and defining it itself. I've added checks for all the
2224 record types that Exim uses.
2225
182ad5cf
PH
2226PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2227 not automatically generating a new one, as it is supposed to. This
2228 prevented TLS from working. If the file did exist, but contained invalid
2229 data, a new version was generated, as expected. It was only the case of a
2230 non-existent file that was broken.
2231
b0d9fc80
TK
2232TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2233 with a change in libdomainkeys > 0.64.
2234
2235TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2236 from DNS. If the selector record carries the flag, it now has
2237 precedence over the domain-wide flag.
2238
2239TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2240
47c7a64a
PH
2241PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2242 the use of a port name that isn't defined in /etc/services) occurred, the
2243 message was deferred as in a normal delivery, and thus remained on the
2244 spool, instead of being failed because of the mua_wrapper setting. This
2245 is now fixed, and I tidied up some of the mua_wrapper messages at the
2246 same time.
2247
a388bce4
SC
2248SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2249 the messages in a hash of arrays rather than using individual hashes.
2250 This is a bit cleaner and results in dramatic memory savings, albeit
2251 at a slight CPU cost.
2252
2253SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2254 as requested by Marc Sherman.
2255
2256SC/10 Eximstats: added histograms for user specified patterns as requested
2257 by Marc Sherman.
2258
0793e4ed
SC
2259SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2260
c58b88df
PH
2261PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2262 fopen() in the content-scanning modules that did not already have it.
2263
e7ad8a65 2264
7982096b
PH
2265Exim version 4.51
2266-----------------
2267
1a46a8c5
PH
2268TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2269 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2270
2f079f46 2271TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2272
2273TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2274
2275PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2276 to test Sieve filters that use "vacation".
2277
2278PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2279 that changes the way the GnuTLS parameters are stored in the cache file.
2280 The new format can be generated externally. For backward compatibility,
2281 if the data in the cache doesn't make sense, Exim assumes it has read an
2282 old-format file, and it generates new data and writes a new file. This
2283 means that you can't go back to an older release without removing the
2284 file.
2285
2286PH/03 A redirect router that has both "unseen" and "one_time" set does not
2287 work if there are any delivery delays because "one_time" forces the
2288 parent to be marked "delivered", so its unseen clone is never tried
2289 again. For this reason, Exim now forbids the simultaneous setting of
2290 these two options.
2291
2292PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2293 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2294 entry if you want to know the details. The fix, however, neglected to
2295 consider the case when local delivery batching is involved. The test for
2296 "previously delivered" was not happening when checking to see if an
2297 address could be batched with a previous (undelivered) one; under
2298 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2299 address.
1a46a8c5
PH
2300
2301PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2302 in its include files, and this causes problems building Exim.
2303
2304PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2305 header_syntax) but Exim was just ignoring anything given after a slash.
2306 In particular, this caused confusion with an attempt to use "verify =
2307 reverse_host_lookup/defer_ok". An error is now given when options are
2308 supplied for verify items that do not have them. (Maybe reverse_host_
2309 lookup should have a defer_ok option, but that's a different point.)
2310
2311PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2312 defined by RFC 821) to 2048, because there were problems with some AUTH
2313 commands, and RFC 1869 says the size should be increased for extended
2314 SMTP commands that take arguments.
2315
2316PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2317 Finch).
2318
2319PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2320 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2321
49c2d5ea
PH
2322PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2323 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2324 whatever). Otherwise the password may appear in the log. Following change
2325 PH/42 below, there is no longer a chance of it appearing in a bounce
2326 message.
49c2d5ea 2327
bf759a8b
PH
2328PH/11 Installed exipick version 20050225.0 from John Jetmore.
2329
83364d30
PH
2330PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2331 of its addresses was ever tried. (Bugzilla bug #2.)
2332
7999bbd7
PH
2333PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2334 the result incorrectly in the debug output. (It correctly added a newline
2335 to what was transported.)
2336
7dbf77c9
PH
2337TF/01 Added $received_time.
2338
74e0617f
PH
2339PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2340 commented out examples of how to interface to a virus scanner and to
2341 SpamAssassin. Also added commented examples of av_scanner and
2342 spamd_address settings.
2343
2f079f46
PH
2344PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2345 and controls are allowed in which ACLs. There were a couple of minor
2346 errors. Some of the entries in the conditions table (which is a table of
2347 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2348 negation of where the condition IS allowed.
2349
8c841523
PH
2350PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2351
7766a4f0
PH
2352PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2353 header file does not have a version number, so I've had to invent a new
2354 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2355 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2356 radiusclient), but it was contributed by a Radius user.
2357
8b417f2c
PH
2358PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2359 files or directories, for OpenSSL.
2360
901f42cb
PH
2361PH/19 When an Exim process that is running as root has to create an Exim log
2362 file, it does so in a subprocess that runs as exim:exim so as to get the
2363 ownership right at creation (otherwise, other Exim processes might see
2364 the file with the wrong ownership). There was no test for failure of this
2365 fork() call, which would lead to the process getting stuck as it waited
2366 for a non-existent subprocess. Forks do occasionally fail when resources
2367 run out. I reviewed all the other calls to fork(); they all seem to check
2368 for failure.
2369
f9b9210e
PH
2370PH/20 When checking for unexpected SMTP input at connect time (before writing
2371 the banner), Exim was not dealing correctly with a non-positive return
2372 from the read() function. If the client had disconnected by this time,
2373 the result was a log entry for a synchronization error with an empty
2374 string after "input=" when read() returned zero. If read() returned -1
2375 (an event I could not check), uninitialized data bytes were printed.
2376 There were reports of junk text (parts of files, etc) appearing after
2377 "input=".
2378
54cdb463
PH
2379PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2380
cf00dad6
PH
2381PH/22 Added support for macro redefinition, and (re)definition in between
2382 driver and ACL definitions.
2383
acb1b346
PH
2384PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2385 forgetting to use the resulting value; it was using the unexpanded value.
2386
c5ddb310
PH
2387PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2388 hadn't been configured. The fix is from Juergen Kreileder, who
2389 understands it better than I do:
2390
2391 "Here's what I see happening with three configured cyrus_sasl
2392 authenticators configured (plain, login, cram-md5):
2393
2394 On startup auth_cyrus_sasl_init() gets called for each of these.
2395 This means three calls to sasl_listmech() without a specified mech_list.
2396 => SASL tests which mechs of all available mechs actually work
2397 => three warnings about OTP not working
2398 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2399
2400 With the patch, sasl_listmech() also gets called three times. But now
2401 SASL's mech_list option is set to the server_mech specified in the the
2402 authenticator. Or in other words, the answer from sasl_listmech()
2403 gets limited to just the mech you're testing for (which is different
2404 for each call.)
2405 => the return list contains just 'plain' or 'login', 'cram-md5' or
2406 nothing depending on the value of ob->server_mech.
2407
2408 I've just tested the patch: Authentication still works fine,
2409 unavailable mechs specified in the exim configuration are still
2410 caught, and the auth.log warnings about OTP are gone."
2411
31619da6
PH
2412PH/25 When debugging is enabled, the contents of the command line are added
2413 to the debugging output, even when log_selector=+arguments is not
2414 specified.
2415
bebaf0fc
PH
2416PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2417 answer is "GNU", and only if the return is "GNU/something" is the answer
2418 "Linux".
2419
475fe28a
PH
2420PH/27 $acl_verify_message is now set immediately after the failure of a
2421 verification in an ACL, and so is available in subsequent modifiers. In
2422 particular, the message can be preserved by coding like this:
2423
2424 warn !verify = sender
2425 set acl_m0 = $acl_verify_message
2426
2427 Previously, $acl_verify_message was set only while expanding "message"
2428 and "log_message" when a very denied access.
2429
7e8bec7a
PH
2430PH/28 Modified OS/os.c-Linux with
2431
2432 -#ifndef OS_LOAD_AVERAGE
2433 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2434
2435 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2436 nomenclature these days.)
2437
e4a89c47
PH
2438PH/29 Installed patch from the Sieve maintainer that adds the options
2439 sieve_useraddress and sieve_subaddress to the redirect router.
2440
5ca2a9a1
PH
2441PH/30 In these circumstances:
2442 . Two addresses routed to the same list of hosts;
2443 . First host does not offer TLS;
2444 . First host accepts first address;
2445 . First host gives temporary error to second address;
2446 . Second host offers TLS and a TLS session is established;
2447 . Second host accepts second address.
2448 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2449 and peerdn, if requested) that were in fact used only for the second
2450 address.
7e8bec7a 2451
c688b954
PH
2452PH/31 When doing a callout as part of verifying an address, Exim was not paying
2453 attention to any local part prefix or suffix that was matched by the
2454 router that accepted the address. It now behaves in the same way as it
2455 does for delivery: the affixes are removed from the local part unless
2456 rcpt_include_affixes is set on the transport.
2457
fed77020
PH
2458PH/32 Add the sender address, as F=<...>, to the log line when logging a
2459 timeout during the DATA phase of an incoming message.
2460
7fe1560f
PH
2461PH/33 Sieve envelope tests were broken for match types other than :is. I have
2462 applied a patch sanctioned by the Sieve maintainer.
c688b954 2463
ebb6e6d5
PH
2464PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2465 the uid or gid is negative. A case of a negative gid caused this to be
2466 noticed. The fix allows for either to be negative.
2467
9c4e8f60
PH
2468PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2469 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2470 overlooked.
2471
2472PH/36 The change PH/12 above was broken. Fixed it.
2473
d7174846
PH
2474PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2475 the grounds that routing the same address twice would always produce the
2476 same answer. This might have been true once, but it is certainly no
2477 longer true now. Routing a child address may depend on the previous
2478 routing that produced that child. Some complicated redirection strategies
2479 went wrong when messages had multiple recipients, and made Exim's
2480 behaviour dependent on the order in which the addresses were given.
2481
2482 I have moved the duplicate checking until after the routing is complete.
2483 Exim scans the addresses that are assigned to local and remote
2484 transports, and removes any duplicates. This means that more work will be
2485 done, as duplicates will always all be routed, but duplicates are
2486 presumably rare, so I don't expect this is of any significance.
2487
2488 For deliveries to pipes, files, and autoreplies, the duplicate checking
2489 still happens during the routing process, since they are not going to be
2490 routed further.
2491
cfe75fc3
PH
2492PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2493 It corrects a timeout issue with spamd. This is Ian's comment: "The
2494 background is that sometimes spamd either never reads data from a
2495 connection it has accepted, or it never writes response data. The exiscan
2496 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2497 blindly assumes that writes won't block so it may never time out."
2498
be22d70e
PH
2499PH/39 Allow G after quota size as well as K and M.
2500
0612b098
PH
2501PH/40 The value set for $authenticated_id in an authenticator may not contain
2502 binary zeroes or newlines because the value is written to log lines and
2503 to spool files. There was no check on this. Now the value is run through
2504 the string_printing() function so that such characters are converted to
2505 printable escape sequences.
2506
2e0c1448
PH
2507PH/41 $message_linecount is a new variable that contains the total number of
2508 lines in the message. Compare $body_linecount, which is the count for the
2509 body only.
2510
447d236c
PH
2511PH/42 Exim no longer gives details of delivery errors for specific addresses in
2512 bounce and delay warning messages, except in certain special cases, which
2513 are as follows:
2514
2515 (a) An SMTP error message from a remote host;
2516 (b) A message specified in a :fail: redirection;
2517 (c) A message specified in a "fail" command in a system filter;
2518 (d) A message specified in a FAIL return from the queryprogram router;
2519 (e) A message specified by the cannot_route_message router option.
2520
2521 In these cases only, Exim does include the error details in bounce and
2522 warning messages. There are also a few cases where bland messages such
2523 as "unrouteable address" or "local delivery error" are given.
2524
d20976dc
PH
2525PH/43 $value is now also set for the "else" part of a ${run expansion.
2526
f656d135
PH
2527PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2528 being worked on, but at least Exim now implements the latest version to
2529 play with."
2530
2e2a30b4
PH
2531PH/45 In a pipe transport, although a timeout while waiting for the pipe
2532 process to complete was treated as a delivery failure, a timeout while
2533 writing the message to the pipe was logged, but erroneously treated as a
2534 successful delivery. Such timeouts include transport filter timeouts. For
2535 consistency with the overall process timeout, these timeouts are now
2536 treated as errors, giving rise to delivery failures by default. However,
2537 there is now a new Boolean option for the pipe transport called
2538 timeout_defer, which, if set TRUE, converts the failures into defers for
2539 both kinds of timeout. A transport filter timeout is now identified in
2540 the log output.
2541
9176e9f0
PH
2542PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2543 systems where "make" and "gmake" are different, calling "gmake" at top
2544 level broke things. I've arranged for the value of $(MAKE) to be passed
2545 from the Makefile to this script so that it can call the same version of
2546 "make".
2547
7982096b 2548
bbe902f0
PH
2549A note about Exim versions 4.44 and 4.50
2550----------------------------------------
2551
2552Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2553changes of various kinds. As a consequence, a big documentation update was
2554needed. This delayed the release for rather longer than seemed good, especially
2555in the light of a couple of (minor) security issues. Therefore, the changes
2556that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2557release. So 4.44 and 4.50 are in effect two different branches that both start
2558from 4.43.
2559
2560I have left the 4.50 change log unchanged; it contains all the changes since
25614.43. The change log for 4.44 is below; many of its items are identical to
2562those for 4.50. This seems to be the most sensible way to preserve the
2563historical information.
2564
2565
f7b63901 2566Exim version 4.50
495ae4b0
PH
2567-----------------
2568
5fe762f6
PH
2569 1. Minor wording change to the doc/README.SIEVE file.
2570
139059f6 2571 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2572 computation of the current number of files was incorrect.
495ae4b0 2573
7086e875
PH
2574 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2575 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2576 place.
2577
35af9f61
PH
2578 4. Give more explanation in the error message when the command for a transport
2579 filter fails to execute.
2580
b668c215
PH
2581 5. There are several places where Exim runs a non-Exim command in a
2582 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2583 was being done only for the command run by the queryprogram router. It is
2584 now done for all such subprocesses. The other cases are: ${run, transport
2585 filters, and the commands run by the lmtp and pipe transports.
2586
a494b1e1
PH
2587 6. Added CONFIGURE_GROUP build-time option.
2588
2589 7. Some older OS have a limit of 256 on the maximum number of file
2590 descriptors. Exim was using setrlimit() to set 1000 as a large value
2591 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2592 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2593
c5fcb476
PH
2594 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2595 was an oversight, and furthermore, ever since the addition of extra
2596 controls (e.g. 4.43/32), the checks on when to allow different forms of
2597 "control" were broken. There should now be diagnostics for all cases when a
2598 control that does not make sense is encountered.
2599
69358f02
PH
2600 9. Added the /retain_sender option to "control=submission".
2601
5be20824
PH
260210. $recipients is now available in the predata ACL (oversight).
2603
eb2c0248
PH
260411. Tidy the search cache before the fork to do a delivery from a message
2605 received from the command line. Otherwise the child will trigger a lookup
2606 failure and thereby defer the delivery if it tries to use (for example) a
2607 cached ldap connection that the parent has called unbind on.
2608
2a3eea10
PH
260912. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2610 of $address_data from the recipient verification was clobbered by the
2611 sender verification.
2612
261313. The value of address_data from a sender verification is now available in
2614 $sender_address_data in subsequent conditions in the ACL statement.
2615
23c7ff99
PH
261614. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2617
4deaf07d
PH
261815. Added a new option "connect=<time>" to callout options, to set a different
2619 connection timeout.
2620
926e1192
PH
262116. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2622 was its contents. (It was OK if the option was not defined at all.)
2623
650edc6f
PH
262417. A "Completed" log line is now written for messages that are removed from
2625 the spool by the -Mrm option.
2626
2c7db3f5
PH
262718. New variables $sender_verify_failure and $recipient_verify_failure contain
2628 information about exactly what failed.
2629
3d235903
PH
263019. Added -dd to debug only the daemon process.
2631
7c7ad977
PH
263220. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2633 handles timeouts, both on the server side and network timeouts. Renamed the
2634 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2635
981756db
PH
263621. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2637 It is now set to "smtps".
2638
d4eb88df
PH
263922. $host_address is now set to the target address during the checking of
2640 ignore_target_hosts.
2641
264223. When checking ignore_target_hosts for an ipliteral router, no host name was
2643 being passed; this would have caused $sender_host_name to have been used if
2644 matching the list had actually called for a host name (not very likely,
2645 since this list is usually IP addresses). A host name is now passed as
2646 "[x.x.x.x]".
2647
7d468ab8
PH
264824. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2649 code that specifies a non-restarting handler (typically sigaction() in
2650 modern systems) in an attempt to fix a rare and obscure crash bug.
2651
265225. Narrowed the window for a race in the daemon that could cause it to ignore
2653 SIGCHLD signals. This is not a major problem, because they are used only to
2654 wake it up if nothing else does.
2655
62c0818f
PH
265626. A malformed maildirsize file could cause Exim to calculate negative values
2657 for the mailbox size or file count. Odd effects could occur as a result.
2658 The maildirsize information is now recalculated if the size or filecount
2659 end up negative.
2660
26034054
PH
266127. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2662 support for a long time. Removed HAVE_SYS_VFS_H.
2663
af66f652
PH
266428. Installed the latest version of exipick from John Jetmore.
2665
90af77f4
PH
266629. In an address list, if the pattern was not a regular expression, an empty
2667 subject address (from a bounce message) matched only if the pattern was an
2668 empty string. Non-empty patterns were not even tested. This was the wrong
2669 because it is perfectly reasonable to use an empty address as part of a
2670 database query. An empty address is now tested by patterns that are
2671 lookups. However, all the other forms of pattern expect the subject to
2672 contain a local part and a domain, and therefore, for them, an empty
2673 address still always fails if the pattern is not itself empty.
2674
d8ef3577
PH
267530. Exim went into a mad DNS loop when attempting to do a callout where the
2676 host was specified on an smtp transport, and looking it up yielded more
2677 than one IP address.
2678
5cb8cbc6
PH
267931. Re-factored the code for checking spool and log partition space into a
2680 function that finds that data and another that does the check. The former
2681 is then used to implement four new variables: $spool_space, $log_space,
2682 $spool_inodes, and $log_inodes.
2683
14702f5b
PH
268432. The RFC2047 encoding function was originally intended for short strings
2685 such as real names; it was not keeping to the 75-character limit for
2686 encoded words that the RFC imposes. It now respects the limit, and
2687 generates multiple encoded words if necessary. To be on the safe side, I
2688 have increased the buffer size for the ${rfc2047: expansion operator from
2689 1024 to 2048 bytes.
2690
063b1e99
PH
269133. It is now permitted to omit both strings after an "if" condition; if the
2692 condition is true, the result is "true". As before, when the second string
2693 is omitted, a false condition yields an empty string. This makes it less
2694 cumbersome to write custom ACL and router conditions.
2695
652e1b65
PH
269634. Failure to deliver a bounce message always caused it to be frozen, even if
2697 there was an errors_to setting on the router. The errors_to setting is now
2698 respected.
2699
6f0c9a4f
PH
270035. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2701 canonical form (fully expanded) before being placed in
2702 $sender_host_address.
2703
33397d19
PH
270436. The table in the code that translates DNS record types into text (T_A to
2705 "A" for instance) was missing entries for NS and CNAME. It is just possible
2706 that this could have caused confusion if both these types were looked up
2707 for the same domain, because the text type is used as part of Exim's
2708 per-process caching. But the chance of anyone hitting this buglet seems
2709 very small.
2710
7bb56e1f
PH
271137. The dnsdb lookup has been extended in a number of ways.
2712
2713 (1) There is a new type, "zns", which walks up the domain tree until it
2714 finds some nameserver records. It should be used with care.
2715
ea3bc19b
PH
2716 (2) There is a new type, "mxh", which is like "mx" except that it returns
2717 just the host names, not the priorities.
2718
2719 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2720 looked up. The behaviour when one of the lookups defers can be
2721 controlled by a keyword.
7bb56e1f 2722
ea3bc19b 2723 (4) It is now possible to specify the separator character for use when
7bb56e1f 2724 multiple records are returned.
33397d19 2725
0bcb2a0e
PH
272638. The dnslists ACL condition has been extended: it is now possible to supply
2727 a list of IP addresses and/or domains to be looked up in a particular DNS
2728 domain.
2729
2ac0e484
PH
273039. Added log_selector=+queue_time_overall.
2731
4e1fde53
PH
273240. When running the queue in the test harness, wait just a tad after forking a
2733 delivery process, to get repeatability of debugging output.
2734
de365ded
PH
273541. Include certificate and key file names in error message when GnuTLS fails
2736 to set them up, because the GnuTLS error message doesn't include the name
2737 of the failing file when there is a problem reading it.
2738
f05da2e8
PH
273942. Allow both -bf and -bF in the same test run.
2740
d6453af2
PH
274143. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2742
f7b63901
PH
274344. The "Exiscan patch" is now merged into the mainline Exim source.
2744
274545. Sometimes the final signoff response after QUIT could fail to get
2746 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2747 < 0 before doing a fflush(). This bug looks as though it goes back to the
2748 introduction of TLS in release 3.20, but "sometimes" must have been rare
2749 because the tests only now provoked it.
2750
a444213a
PH
275146. Reset the locale to "C" after calling embedded Perl, in case it was changed
2752 (this can affect the format of dates).
2753
0ec020ea
PH
275447. exim_tidydb, when checking for the continued existence of a message for
2755 which it has found a message-specific retry record, was not finding
2756 messages that were in split spool directories. Consequently, it was
2757 deleting retry records that should have stayed in existence.
2758
b1206957
PH
275948. Steve fixed some bugs in eximstats.
2760
276149. The SPA authentication driver was not abandoning authentication and moving
2762 on to the next authenticator when an expansion was forced to fail,
2763 contradicting the general specification for all authenticators. Instead it
2764 was generating a temporary error. It now behaves as specified.
2765
26dd5a95
PH
276650. The default ordering of permitted cipher suites for GnuTLS was pessimal
2767 (the order specifies the preference for clients). The order is now AES256,
2768 AES128, 3DES, ARCFOUR128.
2769
343b2385
PH
277051. Small patch to Sieve code - explicitly set From: when generating an
2771 autoreply.
2772
1c5466b9
PH
277352. Exim crashed if a remote delivery caused a very long error message to be
2774 recorded - for instance if somebody sent an entire SpamAssassin report back
2775 as a large number of 550 error lines. This bug was coincidentally fixed by
2776 increasing the size of one of Exim's internal buffers (big_buffer) that
2777 happened as part of the Exiscan merge. However, to be on the safe side, I
2778 have made the code more robust (and fixed the comments that describe what
2779 is going on).
2780
55ee9ee3
PH
278153. Now that there can be additional text after "Completed" in log lines (if
2782 the queue_time_overall log selector is set), a one-byte patch to exigrep
2783 was needed to allow it to recognize "Completed" as not the last thing in
2784 the line.
2785
d38f8232
PH
278654. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2787 patch that reportedly fixes this has been added. I am not expert enough to
2788 create a test for it. This is what the patch creator wrote:
2789
2790 "I found a little strange behaviour of ldap code when working with
2791 Windows 2003 AD Domain, where users was placed in more than one
2792 Organization Units. When I tried to give exim partial DN, the exit code
2793 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2794 But simultaneously result of request was absolutely normal ldap result,
2795 so I produce this patch..."
2796
3295e65b
PH
2797 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2798 REFERENCE, so I have modified the code to exclude the patch when that macro
2799 is not defined.
2800
7102e136
PH
280155. Some experimental protocols are using DNS PTR records for new purposes. The
2802 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2803 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2804 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2805 CAN-2005-0021
7102e136 2806
3ca0ba97
PH
280756. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2808
c2bcbe20
PH
280957. Double the size of the debug message buffer (to 2048) so that more of very
2810 long debug lines gets shown.
2811
18ce445d
PH
281258. The exicyclog utility now does better if the number of log files to keep
2813 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2814
1f5b4c3d
PH
281559. Two changes related to the smtp_active_hostname option:
2816
2817 (1) $smtp_active_hostname is now available as a variable.
2818 (2) The default for smtp_banner uses $smtp_active_hostname instead
2819 of $primary_hostname.
2820
b975ba52
PH
282160. The host_aton() function is supposed to be passed a string that is known
2822 to be a valid IP address. However, in the case of IPv6 addresses, it was
2823 not checking this. This is a hostage to fortune. Exim now panics and dies
2824 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2825 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2826 components; fortuitously, this particular loophole had already been fixed
2827 by change 4.50/55 above.
2828
2829 If there are any other similar loopholes, the new check in host_aton()
2830 itself should stop them being exploited. The report I received stated that
2831 data on the command line could provoke the exploit when Exim was running as
2832 exim, but did not say which command line option was involved. All I could
2833 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2834 running as the user.
ea3a6f44 2835 CAN-2005-0021
85b87bc2
PH
2836
283761. There was a buffer overflow vulnerability in the SPA authentication code
2838 (which came originally from the Samba project). I have added a test to the
2839 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2840 CAN-2005-0022
b975ba52 2841
17ffcae7
PH
284262. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2843 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2844
d95f9fdb
PH
284563. The daemon start-up calls getloadavg() while still root for those OS that
2846 need the first call to be done as root, but it missed one case: when
2847 deliver_queue_load_max is set with deliver_drop_privilege. This is
2848 necessary for the benefit of the queue runner, because there is no re-exec
2849 when deliver_drop_privilege is set.
2850
86b8287f
PH
285164. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2852 This has been fixed.
2853
60dc5e56
PH
285465. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2855 was in use, was not putting the data itself into the right store pool;
2856 consequently, it could be overwritten for a subsequent message in the same
2857 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2858 the caching.)
2859
533244af
PH
286066. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2861
a5a28604
PH
286267. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2863 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2864 the function were treating the return as a boolean value, which happened to
2865 work because 0=false and not-0=true, but is not correct code.
2866
7e634d24
PH
286768. The host_aton() function was not handling scoped IPv6 addresses (those
2868 with, for example, "%eth0" on the end) correctly.
2869
3e11c26b
PH
287069. Fixed some compiler warnings in acl.c for the bitmaps specified with
2871 negated items (that is, ~something) in unsigned ints. Some compilers
2872 apparently mutter when there is no cast.
2873
6729cf78
PH
287470. If an address verification called from an ACL failed, and did not produce a
2875 user-specific message (i.e. there was only a "system" message), nothing was
2876 put in $acl_verify_message. In this situation, it now puts the system
2877 message there.
2878
00f00ca5
PH
287971. Change 4.23/11 added synchronization checking at the start of an SMTP
2880 session; change 4.31/43 added the unwanted input to the log line - except
2881 that it did not do this in the start of session case. It now does.
2882
c9bdd01c
PH
288372. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2884 This is wrong and can cause the other end to generate a synchronization
2885 error if it is another Exim or anything else that does the synchronization
2886 check. A QUIT command is no longer sent after a timeout.
2887
d43194df
PH
288873. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2889 during host lookups.
2890
fe5b5d0b
PH
289174. The defer_ok option of callout verification was not working if it was used
2892 when verifying addresses in header lines, that is, for this case:
2893
2894 verify = header_sender/callout=defer_ok
2895
76a2d7ba
PH
289675. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2897 those file descriptors could be used for SMTP connections. If anything
2898 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2899 could be sent to the SMTP client, causing chaos. The daemon now opens
2900 stdin, stdout, and stderr to /dev/null when it puts itself into the
2901 background.
2902
290376. Arrange for output from Perl's "warn" command to be written to Exim's main
2904 log by default. The user can override this with suitable Perl magic.
2905
04f7d5b9
PH
290677. The use of log_message on a "discard" ACL verb, which is supposed to add to
2907 the log message when discard triggers, was not working for the DATA ACL or
2908 for the non-SMTP ACL.
2909
bc60667e
PH
291078. Error message wording change in sieve.c.
2911
bb6e88ff
PH
291279. If smtp_accept_max_per_host was set, the number of connections could be
2913 restricted to fewer than expected, because the daemon was trying to set up
2914 a new connection before checking whether the processes handling previous
2915 connections had finished. The check for completed processes is now done
2916 earlier. On busy systems, this bug wouldn't be noticed because something
2917 else would have woken the daemon, and it would have reaped the completed
2918 process earlier.
2919
1e70f85b
PH
292080. If a message was submitted locally by a user whose login name contained one
2921 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2922 It caused a spool format error. I have fixed the spool reading code. A
2923 related problem was that the "from" clause in the Received: line became
2924 illegal because of the space(s). It is now covered by ${quote_local_part.
2925
292681. Included the latest eximstats from Steve (adds average sizes to HTML Top
2927 tables).
2928
4e01f9d6
PH
292982. Updated OS/Makefile-AIX as per message from Mike Meredith.
2930
1ee1cef2
PH
293183. Patch from Sieve maintainer to fix unterminated string problem in
2932 "vacation" handling.
2933
6e2b4ccc
PH
293484. Some minor changes to the Linux configuration files to help with other
2935 OS variants using glibc.
2936
8e669ac1
PH
293785. One more patch for Sieve to update vacation handling to latest spec.
2938
495ae4b0 2939
bbe902f0
PH
2940----------------------------------------------------
2941See the note above about the 4.44 and 4.50 releases.
2942----------------------------------------------------
2943
2944
2945Exim version 4.44
2946-----------------
2947
2948 1. Change 4.43/35 introduced a bug that caused file counts to be
2949 incorrectly computed when quota_filecount was set in an appendfile
2950 transport
2951
2952 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2953 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2954 place.
2955
2956 3. Give more explanation in the error message when the command for a transport
2957 filter fails to execute.
2958
2959 4. There are several places where Exim runs a non-Exim command in a
2960 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2961 was being done only for the command run by the queryprogram router. It is
2962 now done for all such subprocesses. The other cases are: ${run, transport
2963 filters, and the commands run by the lmtp and pipe transports.
2964
2965 5. Some older OS have a limit of 256 on the maximum number of file
2966 descriptors. Exim was using setrlimit() to set 1000 as a large value
2967 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2968 systems. I've change it so that if it can't get 1000, it tries for 256.
2969
2970 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2971 was an oversight, and furthermore, ever since the addition of extra
2972 controls (e.g. 4.43/32), the checks on when to allow different forms of
2973 "control" were broken. There should now be diagnostics for all cases when a
2974 control that does not make sense is encountered.
2975
2976 7. $recipients is now available in the predata ACL (oversight).
2977
2978 8. Tidy the search cache before the fork to do a delivery from a message
2979 received from the command line. Otherwise the child will trigger a lookup
2980 failure and thereby defer the delivery if it tries to use (for example) a
2981 cached ldap connection that the parent has called unbind on.
2982
2983 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2984 of $address_data from the recipient verification was clobbered by the
2985 sender verification.
2986
298710. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2988 was its contents. (It was OK if the option was not defined at all.)
2989
299011. A "Completed" log line is now written for messages that are removed from
2991 the spool by the -Mrm option.
2992
299312. $host_address is now set to the target address during the checking of
2994 ignore_target_hosts.
2995
299613. When checking ignore_target_hosts for an ipliteral router, no host name was
2997 being passed; this would have caused $sender_host_name to have been used if
2998 matching the list had actually called for a host name (not very likely,
2999 since this list is usually IP addresses). A host name is now passed as
3000 "[x.x.x.x]".
3001
300214. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3003 code that specifies a non-restarting handler (typically sigaction() in
3004 modern systems) in an attempt to fix a rare and obscure crash bug.
3005
300615. Narrowed the window for a race in the daemon that could cause it to ignore
3007 SIGCHLD signals. This is not a major problem, because they are used only to
3008 wake it up if nothing else does.
3009
301016. A malformed maildirsize file could cause Exim to calculate negative values
3011 for the mailbox size or file count. Odd effects could occur as a result.
3012 The maildirsize information is now recalculated if the size or filecount
3013 end up negative.
3014
301517. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3016 support for a long time. Removed HAVE_SYS_VFS_H.
3017
ea3a6f44 301818. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3019
302019. Allow an empty sender to be matched against a lookup in an address list.
3021 Previously the only cases considered were a regular expression, or an
3022 empty pattern.
3023
302420. Exim went into a mad DNS lookup loop when doing a callout where the
3025 host was specified on the transport, if the DNS lookup yielded more than
3026 one IP address.
3027
ea3a6f44
NM
302821. The RFC2047 encoding function was originally intended for short strings
3029 such as real names; it was not keeping to the 75-character limit for
3030 encoded words that the RFC imposes. It now respects the limit, and
3031 generates multiple encoded words if necessary. To be on the safe side, I
3032 have increased the buffer size for the ${rfc2047: expansion operator from
3033 1024 to 2048 bytes.
bbe902f0 3034
ea3a6f44
NM
303522. Failure to deliver a bounce message always caused it to be frozen, even if
3036 there was an errors_to setting on the router. The errors_to setting is now
3037 respected.
bbe902f0
PH
3038
303923. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3040 canonical form (fully expanded) before being placed in
3041 $sender_host_address.
3042
304324. Updated eximstats to version 1.33
3044
ea3a6f44
NM
304525. Include certificate and key file names in error message when GnuTLS fails
3046 to set them up, because the GnuTLS error message doesn't include the name
3047 of the failing file when there is a problem reading it.
bbe902f0
PH
3048
304926. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3050 As per change 25.
bbe902f0 3051
ea3a6f44
NM
305227. Reset the locale to "C" after calling embedded Perl, in case it was changed
3053 (this can affect the format of dates).
bbe902f0 3054
ea3a6f44
NM
305528. exim_tidydb, when checking for the continued existence of a message for
3056 which it has found a message-specific retry record, was not finding
3057 messages that were in split spool directories. Consequently, it was
3058 deleting retry records that should have stayed in existence.
bbe902f0
PH
3059
306029. eximstats updated to version 1.35
3061 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3062 1.35 - bugfix such that pie charts by volume are generated correctly
3063
ea3a6f44
NM
306430. The SPA authentication driver was not abandoning authentication and moving
3065 on to the next authenticator when an expansion was forced to fail,
3066 contradicting the general specification for all authenticators. Instead it
3067 was generating a temporary error. It now behaves as specified.
bbe902f0 3068
ea3a6f44
NM
306931. The default ordering of permitted cipher suites for GnuTLS was pessimal
3070 (the order specifies the preference for clients). The order is now AES256,
3071 AES128, 3DES, ARCFOUR128.
bbe902f0 3072
ea3a6f44
NM
307331. Small patch to Sieve code - explicitly set From: when generating an
3074 autoreply.
bbe902f0 3075
ea3a6f44
NM
307632. Exim crashed if a remote delivery caused a very long error message to be
3077 recorded - for instance if somebody sent an entire SpamAssassin report back
3078 as a large number of 550 error lines. This bug was coincidentally fixed by
3079 increasing the size of one of Exim's internal buffers (big_buffer) that
3080 happened as part of the Exiscan merge. However, to be on the safe side, I
3081 have made the code more robust (and fixed the comments that describe what
3082 is going on).
bbe902f0 3083
ea3a6f44
NM
308433. Some experimental protocols are using DNS PTR records for new purposes. The
3085 keys for these records are domain names, not reversed IP addresses. The
3086 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3087 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3088 CAN-2005-0021
3089
ea3a6f44
NM
309034. The host_aton() function is supposed to be passed a string that is known
3091 to be a valid IP address. However, in the case of IPv6 addresses, it was
3092 not checking this. This is a hostage to fortune. Exim now panics and dies
3093 if the condition is not met. A case was found where this could be provoked
3094 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3095 components; fortuitously, this particular loophole had already been fixed
3096 by change 4.50/55 or 4.44/33 above.
3097
3098 If there are any other similar loopholes, the new check in host_aton()
3099 itself should stop them being exploited. The report I received stated that
3100 data on the command line could provoke the exploit when Exim was running as
3101 exim, but did not say which command line option was involved. All I could
3102 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3103 running as the user.
bbe902f0
PH
3104 CAN-2005-0021
3105
ea3a6f44
NM
310635. There was a buffer overflow vulnerability in the SPA authentication code
3107 (which came originally from the Samba project). I have added a test to the
3108 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3109 CAN-2005-0022
3110
ea3a6f44
NM
311136. The daemon start-up calls getloadavg() while still root for those OS that
3112 need the first call to be done as root, but it missed one case: when
3113 deliver_queue_load_max is set with deliver_drop_privilege. This is
3114 necessary for the benefit of the queue runner, because there is no re-exec
3115 when deliver_drop_privilege is set.
bbe902f0 3116
ea3a6f44
NM
311737. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3118 was in use, was not putting the data itself into the right store pool;
3119 consequently, it could be overwritten for a subsequent message in the same
3120 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3121 the caching.)
bbe902f0 3122
ea3a6f44
NM
312338. Sometimes the final signoff response after QUIT could fail to get
3124 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3125 < 0 before doing a fflush(). This bug looks as though it goes back to the
3126 introduction of TLS in release 3.20, but "sometimes" must have been rare
3127 because the tests only now provoked it.
bbe902f0
PH
3128
3129
495ae4b0
PH
3130Exim version 4.43
3131-----------------
3132
3133 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3134 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3135 Now it returns an integer. A number of calls were still expecting a T/F
3136 return. Fortuitously, in all cases, the tests worked in OK situations,
3137 which is the norm. However, things would have gone wrong on any write
3138 failures on the smtp file descriptor. This function is used when sending
3139 messages over SMTP and also when doing verify callouts.
3140
3141 2. When Exim is called to do synchronous delivery of a locally submitted
3142 message (the -odf or -odi options), it no longer closes stderr before doing
3143 the delivery.
3144
3145 3. Implemented the mua_wrapper option.
3146
3147 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3148
3149 5. Implemented the functions header_remove(), header_testname(),
3150 header_add_at_position(), and receive_remove_recipient(), and exported them
3151 to local_scan().
3152
3153 6. If an ACL "warn" statement specified the addition of headers, Exim already
3154 inserted X-ACL-Warn: at the start if there was no header name. However, it
3155 was not making this test for the second and subsequent header lines if
3156 there were newlines in the string. This meant that an invalid header could
3157 be inserted if Exim was badly configured.
3158
3159 7. Allow an ACL "warn" statement to add header lines at the start or after all
3160 the Received: headers, as well as at the end.
3161
3162 8. Added the rcpt_4xx retry error code.
3163
3164 9. Added postmaster_mailfrom=xxx to callout verification option.
3165
316610. Added mailfrom=xxxx to the callout verification option, for verify=
3167 header_sender only.
3168
316911. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3170 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3171
317212. Inserted some casts to stop certain compilers warning when using pointer
3173 differences as field lengths or precisions in printf-type calls (mostly
3174 affecting debugging statements).
3175
317613. Added optional readline() support for -be (dynamically loaded).
3177
317814. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3179 same clock tick as a message's arrival, so that its received time was the
3180 same as the "first fail" time on the retry record, and that message
3181 remained on the queue past the ultimate address timeout, every queue runner
3182 would try a delivery (because it was past the ultimate address timeout) but
3183 after another failure, the ultimate address timeout, which should have then
3184 bounced the address, did not kick in. This was a "< instead of <=" error;
3185 in most cases the first failure would have been in the next clock tick
3186 after the received time, and all would be well.
3187
318815. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3189 being recognized when the domain list was tested by the match_domain
3190 condition in an expansion string.
3191
319216. Added the ${str2b64: operator.
3193
319417. Exim was always calling setrlimit() to set a large limit for the number of
3195 processes, without checking whether the existing limit was already
3196 adequate. (It did check for the limit on file descriptors.) Furthermore,
3197 errors from getrlimit() and setrlimit() were being ignored. Now they are
3198 logged to the main and panic logs, but Exim does carry on, to try to do its
3199 job under whatever limits there are.
3200
320118. Imported PCRE 5.0.
3202
320319. Trivial typo in log message " temporarily refused connection" (the leading
3204 space).
3205
320620. If the log selector return_path_on_delivery was set and an address was
3207 redirected to /dev/null, the delivery process crashed because it assumed
3208 that a return path would always be set for a "successful" delivery. In this
3209 case, the whole delivery is bypassed as an optimization, and therefore no
3210 return path is set.
3211
321221. Internal re-arrangement: the function for sending a challenge and reading
3213 a response while authentication was assuming a zero-terminated challenge
3214 string. It's now changed to take a pointer and a length, to allow for
3215 binary data in such strings.
3216
321722. Added the cyrus_sasl authenticator (code supplied by MBM).
3218
321923. Exim was not respecting finduser_retries when seeking the login of the
3220 uid under which it was called; it was always trying 10 times. (The default
3221 setting of finduser_retries is zero.) Also, it was sleeping after the final
3222 failure, which is pointless.
3223
322424. Implemented tls_on_connect_ports.
3225
322625. Implemented acl_smtp_predata.
3227
322826. If the domain in control=submission is set empty, Exim assumes that the
3229 authenticated id is a complete email address when it generates From: or
3230 Sender: header lines.
3231
323227. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3233 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3234 chown and chgrp in /bin and hostname in /usr/bin.
3235
323628. Exim was keeping the "process log" file open after each use, just as it
3237 does for the main log. This opens the possibility of it remaining open for
3238 long periods when the USR1 signal hits a daemon. Occasional processlog
3239 errors were reported, that could have been caused by this. Anyway, it seems
3240 much more sensible not to leave this file open at all, so that is what now
3241 happens.
3242
324329. The long-running daemon process does not normally write to the log once it
3244 has entered its main loop, and it closes the log before doing so. This is
3245 so that log files can straightforwardly be renamed and moved. However,
3246 there are a couple of unusual error situations where the daemon does write
3247 log entries, and I had neglected to close the log afterwards.
3248
324930. The text of an SMTP error response that was received during a remote
3250 delivery was being truncated at 512 bytes. This is too short for some of
3251 the long messages that one sometimes sees. I've increased the limit to
3252 1024.
3253
325431. It is now possible to make retry rules that apply only when a message has a
3255 specific sender, in particular, an empty sender.
3256
325732. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3258 it possible to be selective about when SMTP synchronization is enforced.
3259
326033. Added "control = caseful_local_part" and "control = "caselower_local_part".
3261
326232. Implemented hosts_connection_nolog.
3263
326433. Added an ACL for QUIT.
3265
326634. Setting "delay_warning=" to disable warnings was not working; it gave a
3267 syntax error.
3268
326935. Added mailbox_size and mailbox_filecount to appendfile.
3270
327136. Added control = no_multiline_responses to ACLs.
3272
327337. There was a bug in the logic of the code that waits for the clock to tick
3274 in the case where the clock went backwards by a substantial amount such
3275 that the microsecond fraction of "now" was more than the microsecond
3276 fraction of "then" (but the whole seconds number was less).
3277
327838. Added support for the libradius Radius client library this is found on
3279 FreeBSD (previously only the radiusclient library was supported).
3280
3281
3282Exim version 4.42
3283-----------------
3284
3285 1. When certain lookups returned multiple values in the form name=value, the
3286 quoting of the values was not always being done properly. Specifically:
3287 (a) If the value started with a double quote, but contained no whitespace,
3288 it was not quoted.
3289 (b) If the value contained whitespace other than a space character (i.e.
3290 tabs or newlines or carriage returns) it was not quoted.
3291 This fix has been applied to the mysql and pgsql lookups by writing a
3292 separate quoting function and calling it from the lookup code. The fix
3293 should probably also be applied to nisplus, ibase and oracle lookups, but
3294 since I cannot test any of those, I have not disturbed their existing code.
3295
3296 2. A hit in the callout cache for a specific address caused a log line with no
3297 reason for rejecting RCPT. Now it says "Previous (cached) callout
3298 verification failure".
3299
3300 3. There was an off-by-one bug in the queryprogram router. An over-long
3301 return line was truncated at 256 instead of 255 characters, thereby
3302 overflowing its buffer with the terminating zero. As well as fixing this, I
3303 have increased the buffer size to 1024 (and made a note to document this).
3304
3305 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3306 when Exim is waiting for an SMTP response from a remote server, Exim
3307 restarts its select() call on the socket, thereby resetting its timeout.
3308 This is not a problem when such interrupts are rare. Somebody set up a cron
3309 job to run exiwhat every 2 minutes, which is less than the normal select()
3310 timeout (5 or 10 minutes). This meant that the select() timeout never
3311 kicked in because it was always reset. I have fixed this by comparing the
3312 time when an interrupt arrives with the time at the start of the first call
3313 to select(). If more time than the timeout has elapsed, the interrupt is
3314 treated as a timeout.
3315
3316 5. Some internal re-factoring in preparation for the addition of Sieve
3317 extensions (by MH). In particular, the "personal" test is moved to a
3318 separate function, and given an option for scanning Cc: and Bcc: (which is
3319 not set for Exim filters).
3320
3321 6. When Exim created an email address using the login of the caller as the
3322 local part (e.g. when creating a From: or Sender: header line), it was not
3323 quoting the local part when it contained special characters such as @.
3324
3325 7. Installed new OpenBSD configuration files.
3326
3327 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3328 try to make them clearer.
3329
3330 9. Callout options, other than the timeout value, were being ignored when
3331 verifying sender addresses in header lines. For example, when using
3332
3333 verify = header_sender/callout=no_cache
3334
3335 the cache was (incorrectly) being used.
3336
333710. Added a missing instance of ${EXE} to the exim_install script; this affects
3338 only the Cygwin environment.
3339
334011. When return_path_on_delivery was set as a log selector, if different remote
3341 addresses in the same message used different return paths and parallel
3342 remote delivery occurred, the wrong values would sometimes be logged.
3343 (Whenever a remote delivery process finished, the return path value from
3344 the most recently started remote delivery process was logged.)
3345
334612. RFC 3848 specifies standard names for the "with" phrase in Received: header
3347 lines when AUTH and/or TLS are in use. This is the "received protocol"
3348 field. Exim used to use "asmtp" for authenticated SMTP, without any
3349 indication (in the protocol name) for TLS use. Now it follows the RFC and
3350 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3351 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3352 names appear in log lines as well as in Received: header lines.
3353
335413. Installed MH's patches for Sieve to add the "copy" and "vacation"
3355 extensions, and comparison tests, and to fix some bugs.
3356
335714. Changes to the "personal" filter test:
3358
3359 (1) The test was buggy in that it was just doing the equivalent of
3360 "contains" tests on header lines. For example, if a user's address was
3361 anne@some.where, the "personal" test would incorrectly be true for
3362
3363 To: susanne@some.where
3364
3365 This test is now done by extracting each address from the header in turn,
3366 and checking the entire address. Other tests that are part of "personal"
3367 are now done using regular expressions (for example, to check local parts
3368 of addresses in From: header lines).
3369
3370 (2) The list of non-personal local parts in From: addresses has been
3371 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3372 taken from the Sieve specification recommendations.
3373
3374 (3) If the message contains any header line starting with "List-" it is
3375 treated as non-personal.
3376
3377 (4) The test for "circular" in the Subject: header line has been removed
3378 because it now seems ill-conceived.
3379
338015. Minor typos in src/EDITME comments corrected.
3381
338216. Installed latest exipick from John Jetmore.
3383
338417. If headers_add on a router specified a text string that was too long for
3385 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3386 of string_sprintf() is now avoided.
3387
338818. $message_body_size was not set (it was always zero) when running the DATA
3389 ACL and the local_scan() function.
3390
339119. For the "mail" command in an Exim filter, no default was being set for
3392 the once_repeat time, causing a random time value to be used if "once" was
3393 specified. (If the value happened to be <= 0, no repeat happened.) The
3394 default is now 0s, meaning "never repeat". The "vacation" command was OK
3395 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3396 (I found it when inspecting the code).
3397
339820. There is now an overall timeout for performing a callout verification. It
3399 defaults to 4 times the callout timeout, which applies to individual SMTP
3400 commands during the callout. The overall timeout applies when there is more
3401 than one host that can be tried. The timeout is checked before trying the
3402 next host. This prevents very long delays if there are a large number of
3403 hosts and all are timing out (e.g. when the network connections are timing
3404 out). The value of the overall timeout can be changed by specifying an
3405 additional sub-option for "callout", called "maxwait". For example:
3406
3407 verify = sender/callout=5s,maxwait=20s
3408
340921. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3410 to the end before writing, but this should make it even safer).
3411
341222. Exim was forgetting that it had advertised PIPELINING for the second and
3413 subsequent messages on an SMTP connection. It was also not resetting its
3414 memory on STARTTLS and an internal HELO.
3415
341623. When Exim logs an SMTP synchronization error within a session, it now
3417 records whether PIPELINING has been advertised or not.
3418
341924. Added 3 instances of "(long int)" casts to time_t variables that were being
3420 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3421 rather than long int.
3422
342325. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3424
342526. Added the never_mail option to autoreply.
3426
3427
3428Exim version 4.41
3429-----------------
3430
3431 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3432 crash if the getsockname() call failed; this can happen if a connection is
3433 closed very soon after it is established. The problem was simply in the
3434 order in which certain operations were done, causing Exim to try to write
3435 to the SMTP stream before it had set up the file descriptor. The bug has
3436 been fixed by making things happen in the correct order.
3437
3438
3439Exim version 4.40
3440-----------------
3441
3442 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3443 before the connection was closed, thus losing the rejection response.
3444
3445 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3446 some early Solaris releases, but causes trouble in current releases where
3447 socklen_t is defined.
3448
3449 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3450 always exist.
3451