OpenSSL and XSL changes documented.
[exim.git] / doc / doc-txt / ChangeLog
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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
3346ab01 74
465e92cf
JJ
75Exim version 4.72
76-----------------
77
453a6645
PP
78JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
79 $data_path, and $header_path variables; fixed documentation bugs and
80 typos
465e92cf 81
453a6645
PP
82JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
83 exipick to access non-standard spools, including the "frozen" queue
84 (Finput)
edae0343 85
9bd3e22c
NM
86NM/01 Bugzilla 965: Support mysql stored procedures.
87 Patch from Alain Williams
88
bb576ff7
NM
89NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
90
5a1a5845
NM
91NM/03 Bugzilla 955: Documentation fix for max_rcpts.
92 Patch from Andreas Metzler
93
981a9fad
NM
94NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
95 Patch from Kirill Miazine
96
7fc497ee
NM
97NM/05 Bugzilla 671: Added umask to procmail example.
98
1a41defa
JJ
99JJ/03 installed exipick 20100323.0, fixing doc bug
100
a466095c 101NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 102 directory. Notification and patch from Dan Rosenberg.
a466095c 103
94a6bd0b
NM
104TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
105
106TK/02 Improve log output when DKIM signing operation fails.
107
108MH/01 Treat the transport option dkim_domain as a colon separated
109 list, not as a single string, and sign the message with each element,
110 omitting multiple occurences of the same signer.
111
c1b141a8
NM
112NM/07 Null terminate DKIM strings, Null initialise DKIM variable
113 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 114
b26eacf1 115NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
116 Patch by Simon Arlott
117
179c5980 118PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 119 MBX locking. Notification from Dan Rosenberg.
179c5980 120
9bd3e22c 121
7c6d71af
NM
122Exim version 4.71
123-----------------
124
7d9f747b 125TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 126
f013fb92
NM
127NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
128
0eb8eedd
NM
129NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
130
663ee6d9
NM
131NM/03 Bugzilla 847: Enable DNSDB lookup by default.
132
177ebd9b
NM
133NM/04 Bugzilla 915: Flag broken perl installation during build.
134
7c6d71af 135
210f147e
NM
136Exim version 4.70
137-----------------
138
cdd3bb85 139TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 140 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
141
142TK/02 Write list of recipients to X-Envelope-Sender header when building
143 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 144 Hirsch).
cdd3bb85
TK
145
146TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
147 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 148 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
149
150TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
151 by Mark Daniel Reidel <mr@df.eu>.
152
210f147e
NM
153NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
154 When building exim an external PCRE library is now needed -
155 PCRE is a system library on the majority of modern systems.
156 See entry on PCRE_LIBS in EDITME file.
157
deafd5b3
NM
158NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
159 conversation. Added nologin parameter to request.
7d9f747b 160 Patch contributed by Kirill Miazine.
deafd5b3 161
089793a4
TF
162TF/01 Do not log submission mode rewrites if they do not change the address.
163
5f16ca82
TF
164TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
165
dae9d94e 166NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 167 log files in place. Contributed by Roberto Lima.
dae9d94e 168
7d9f747b 169NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 170
06864c44
TF
171TF/03 Bugzilla 615: When checking the local_parts router precondition
172 after a local_part_suffix or local_part_prefix option, Exim now
173 does not use the address's named list lookup cache, since this
174 contains cached lookups for the whole local part.
175
65a7d8c3 176NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 177 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 178
23510047 179TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 180
7d9f747b 181NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 182
7d8eec3a 183NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 184 Patch provided by Jan Srzednicki.
6c588e74 185
89dec7b6
TF
186TF/05 Leading white space used to be stripped from $spam_report which
187 wrecked the formatting. Now it is preserved.
5f28a6e8 188
a99de90c
TF
189TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
190 that they are available at delivery time.
191
e2803e40
TF
192TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
193
7199e1ee
TF
194TF/08 TLS error reporting now respects the incoming_interface and
195 incoming_port log selectors.
196
e276e04b
TF
197TF/09 Produce a more useful error message if an SMTP transport's hosts
198 setting expands to an empty string.
199
ce552449 200NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 201 Patch provided by Phil Pennock.
ce552449 202
e765a0f1 203NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 204 Patch provided by Richard Godbee.
e765a0f1 205
4f054c63 206NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 207 acl_smtp_notquit, added index entry.
4f054c63 208
7d9f747b
PP
209NM/09 Bugzilla 787: Potential buffer overflow in string_format.
210 Patch provided by Eugene Bujak.
24c929a2 211
7d9f747b
PP
212NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
213 accept(). Patch provided by Maxim Dounin.
cf73943b 214
b52bc06e 215NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 216 Patch provided by Phil Pennock.
b52bc06e 217
447de4b0
NM
218NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
219
4c69d561 220NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 221 Patch provided by Brad "anomie" Jorsch.
4c69d561 222
d5c39246 223NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 224 Patch provided by Dean Brooks.
9b989985 225
0b23848a
TK
226TK/05 Add native DKIM support (does not depend on external libraries).
227
8f3414a1 228NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 229 Patch provided by Graeme Fowler.
e2aacdfd 230
fb6f955d
NM
231NM/16 Bugzilla 851: Documentation example syntax fix.
232
233NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 234
7d9f747b
PP
235NM/18 Bugzilla 894: Fix issue with very long lines including comments in
236 lsearch.
dbb0bf41 237
7d9f747b
PP
238NM/19 Bugzilla 745: TLS version reporting.
239 Patch provided by Phil Pennock.
f3766eb5 240
7d9f747b
PP
241NM/20 Bugzilla 167: bool: condition support.
242 Patch provided by Phil Pennock.
36f12725 243
7d9f747b
PP
244NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
245 clients. Patch provided by Phil Pennock.
e6060e2c 246
7d9f747b
PP
247NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
248 Patch provided by Brad "anomie" Jorsch.
5eb690a1 249
7d9f747b
PP
250NM/23 Bugzilla 687: Fix misparses in eximstats.
251 Patch provided by Heiko Schlittermann.
d5c13d66 252
7d9f747b
PP
253NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
254 Patch provided by Heiko Schlittermann.
b2335c0b 255
7d9f747b 256NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 257 plus update to original patch.
f4cd9433 258
7d9f747b 259NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 260
7d9f747b
PP
261NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
262 Patch provided by David Brownlee.
8dc71ab3 263
7d9f747b 264NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 265
7d9f747b 266NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 267
7d9f747b 268NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 269
7d9f747b 270NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 271
17792b53 272NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 273 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 274
7d9f747b
PP
275NM/33 Bugzilla 898: Transport filter timeout fix.
276 Patch by Todd Rinaldo.
52383f8f 277
7d9f747b
PP
278NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
279 Patch by Serge Demonchaux.
5ca6d115 280
7d9f747b
PP
281NM/35 Bugzilla 39: Base64 decode bug fixes.
282 Patch by Jakob Hirsch.
baee9eee 283
7d9f747b 284NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 285
7d9f747b 286NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 287
7d9f747b 288NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 289
7d9f747b 290NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 291
deafd5b3 292
47db1125
NM
293Exim version 4.69
294-----------------
295
4b3504d0
TK
296TK/01 Add preliminary DKIM support. Currently requires a forked version of
297 ALT-N's libdkim that I have put here:
298 http://duncanthrax.net/exim-experimental/
299
300 Note to Michael Haardt: I had to rename some vars in sieve.c. They
301 were called 'true' and it seems that C99 defines that as a reserved
302 keyword to be used with 'bool' variable types. That means you could
303 not include C99-style headers which use bools without triggering
304 build errors in sieve.c.
305
81ea09ca
NM
306NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
307 as mailq or other aliases. Changed the --help handling significantly
308 to do whats expected. exim_usage() emits usage/help information.
309
f13cddcb
SC
310SC/01 Added the -bylocaldomain option to eximstats.
311
7d9f747b 312NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 313
7d9f747b 314NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 315
7d9f747b 316NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
317
318
eb4c0de6
PH
319Exim version 4.68
320-----------------
321
322PH/01 Another patch from the Sieve maintainer.
323
6a3bceb1
PH
324PH/02 When an IPv6 address is converted to a string for single-key lookup
325 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
326 dots are used instead of colons so that keys in lsearch files need not
327 contain colons. This was done some time before quoting was made available
328 in lsearch files. However, iplsearch files do require colons in IPv6 keys
329 (notated using the quote facility) so as to distinguish them from IPv4
330 keys. This meant that lookups for IP addresses in host lists did not work
331 for iplsearch lookups.
332
333 This has been fixed by arranging for IPv6 addresses to be expressed with
334 colons if the lookup type is iplsearch. This is not incompatible, because
335 previously such lookups could never work.
336
337 The situation is now rather anomolous, since one *can* have colons in
338 ordinary lsearch keys. However, making the change in all cases is
339 incompatible and would probably break a number of configurations.
340
2e30fa9d
TK
341TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
342 version.
343
0806a9c5
MH
344MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
345 conversion specification without a maximum field width, thereby enabling
346 a rogue spamd server to cause a buffer overflow. While nobody in their
347 right mind would setup Exim to query an untrusted spamd server, an
348 attacker that gains access to a server running spamd could potentially
349 exploit this vulnerability to run arbitrary code as the Exim user.
350
ae276964
TK
351TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
352 $primary_hostname instead of what libspf2 thinks the hosts name is.
353
0f2cbd1b
MH
354MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
355 a directory entry by the name of the lookup key. Previously, if a
356 symlink pointed to a non-existing file or a file in a directory that
357 Exim lacked permissions to read, a lookup for a key matching that
358 symlink would fail. Now it is enough that a matching directory entry
359 exists, symlink or not. (Bugzilla 503.)
360
2b85bce7
PH
361PH/03 The body_linecount and body_zerocount variables are now exported in the
362 local_scan API.
363
93655c46
PH
364PH/04 Added the $dnslist_matched variable.
365
6c512171
PH
366PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
367 This means they are set thereafter only if the connection becomes
368 encrypted.
369
370PH/06 Added the client_condition to authenticators so that some can be skipped
371 by clients under certain conditions.
372
aa6dc513
PH
373PH/07 The error message for a badly-placed control=no_multiline_responses left
374 "_responses" off the end of the name.
375
a96603a0
PH
376PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
377
8f240103
PH
378PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
379 (without spaces) instead of just copying the configuration text.
380
381PH/10 Added the /noupdate option to the ratelimit ACL condition.
382
d677b2f2
PH
383PH/11 Added $max_received_linelength.
384
d52120f2
PH
385PH/12 Added +ignore_defer and +include_defer to host lists.
386
64f2600a
PH
387PH/13 Installed PCRE version 7.2. This needed some changes because of the new
388 way in which PCRE > 7.0 is built.
389
8669f003
PH
390PH/14 Implemented queue_only_load_latch.
391
a4dc33a8
PH
392PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
393 MAIL command. The effect was to mangle the value on 64-bit systems.
394
d6a60c0f
PH
395PH/16 Another patch from the Sieve maintainer.
396
8f128379
PH
397PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
398
8932dffe
PH
399PH/18 If a system quota error occurred while trying to create the file for
400 a maildir delivery, the message "Mailbox is full" was not appended to the
401 bounce if the delivery eventually timed out. Change 4.67/27 below applied
402 only to a quota excession during the actual writing of the file.
d6a60c0f 403
ddea74fa 404PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
405 characters?) which causes problems in log lines. The DN values are now
406 passed through string_printing() before being added to log lines.
407
ddea74fa 408PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
409 and InterBase are left for another time.)
410
ddea74fa
PH
411PH/21 Added message_body_newlines option.
412
ce9f225c
PH
413PH/22 Guard against possible overflow in moan_check_errorcopy().
414
19897d52
PH
415PH/23 POSIX allows open() to be a macro; guard against that.
416
bc64a74d
PH
417PH/24 If the recipient of an error message contained an @ in the local part
418 (suitably quoted, of course), incorrect values were put in $domain and
419 $local_part during the evaluation of errors_copy.
420
eb4c0de6 421
b4ed4da0
PH
422Exim version 4.67
423-----------------
424
22ad45c9
MH
425MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
426 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
427 Jan Srzednicki.
428
b4ed4da0
PH
429PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
430 issue a MAIL command.
431
431b7361
PH
432PH/02 In an ACL statement such as
433
434 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
435
436 if a client was not listed at all, or was listed with a value other than
437 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
438 the condition was not true (as it should be), so access was not denied.
439 The bug was that the ! inversion was incorrectly passed on to the second
440 item. This has been fixed.
441
442PH/03 Added additional dnslists conditions == and =& which are different from
443 = and & when the dns lookup returns more than one IP address.
444
83da1223
PH
445PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
446 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
447
54fc8428
PH
448PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
449 FSYNC, which compiles an option called disable_fsync that allows for
450 bypassing fsync(). The documentation is heavily laced with warnings.
451
34c5e8dd
SC
452SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
453
bbe15da8
PH
454PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
455 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
456 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
457 including adding "make clean"; (3) Added -fPIC when compiling the test
458 dynamically loaded module, to get rid of a warning.
459
0e8a9471
MH
460MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
461 message fails, move_frozen_messages = true and ignore_bounce_errors_after
462 = 0s. The bug is otherwise harmless.
463
f0872424
PH
464PH/07 There was a bug in the dovecot authenticator such that the value of
465 $auth1 could be overwritten, and so not correctly preserved, after a
466 successful authentication. This usually meant that the value preserved by
467 the server_setid option was incorrect.
468
b01dd148
PH
469PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
470
6bf342e1
PH
471PH/09 Installed PCRE release 7.0.
472
273f34d0
PH
473PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
474 run for batched SMTP input. It is now run at the start of every message
475 in the batch. While fixing this I discovered that the process information
476 (output by running exiwhat) was not always getting set for -bs and -bS
477 input. This is fixed, and it now also says "batched" for BSMTP.
478
cf8b11a5
PH
479PH/11 Added control=no_pipelining.
480
41c7c167
PH
481PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
482 patch, slightly modified), and move the expansion of helo_data till after
483 the connection is made in the smtp transport (so it can use these
484 values).
485
9c57cbc0
PH
486PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
487
f3f065bb
PH
488PH/14 Added log_selector = +pid.
489
047bdd8c
PH
490PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
491
0ce9abe6
PH
492PH/16 Add ${if forany and ${if forall.
493
0e22dfd1
PH
494PH/17 Added dsn_from option to vary the From: line in DSNs.
495
4c590bd1
PH
496PH/18 Flush SMTP output before performing a callout, unless control =
497 no_callout_flush is set.
498
09945f1e
PH
499PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
500 was true (the default) a successful delivery failed to delete the retry
501 item, thus causing premature timeout of the address. The bug is now
502 fixed.
503
c51b8e75
PH
504PH/20 Added hosts_avoid_pipelining to the smtp transport.
505
e28326d8
PH
506PH/21 Long custom messages for fakedefer and fakereject are now split up
507 into multiline reponses in the same way that messages for "deny" and
508 other ACL rejections are.
509
75b1493f
PH
510PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
511 with slight modification.
512
7c5214ec
PH
513PH/23 Applied sieve patches from the maintainer "tracking the latest notify
514 draft, changing the syntax and factoring some duplicate code".
515
4311097e
PH
516PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
517 for deliveries of the second and subsequent messages over the same SMTP
518 connection.
519
29f89cad
PH
520PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
521 ${reduce, with only minor "tidies".
522
5e687460
SC
523SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
524
c3611384
PH
525PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
526 expansion side effects.
527
5a11a7b4
PH
528PH/27 When a message times out after an over-quota error from an Exim-imposed
529 quota, the bounce message says "mailbox is full". This message was not
530 being given when it was a system quota that was exceeded. It now should
531 be the same.
532
0e20aff9
MH
533MH/03 Made $recipients available in local_scan(). local_scan() already has
534 better access to the recipient list through recipients_list[], but
535 $recipients can be useful in postmaster-provided expansion strings.
536
ca86f471
PH
537PH/28 The $smtp_command and $smtp_command_argument variables were not correct
538 in the case of a MAIL command with additional options following the
539 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
540 were accidentally chopped off.
541
a14e5636
PH
542PH/29 SMTP synchronization checks are implemented when a command is read -
543 there is a check that no more input is waiting when there shouldn't be
544 any. However, for some commands, a delay in an ACL can mean that it is
545 some time before the response is written. In this time, more input might
546 arrive, invalidly. So now there are extra checks after an ACL has run for
547 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
548 pipelining has not been advertised.
549
ec95d1a6
PH
550PH/30 MH's patch to allow iscntrl() characters to be list separators.
551
42855d71
PH
552PH/31 Unlike :fail:, a custom message specified with :defer: was not being
553 returned in the SMTP response when smtp_return_error_details was false.
554 This has been fixed.
555
57c2c631
PH
556PH/32 Change the Dovecot authenticator to use read() and write() on the socket
557 instead of the C I/O that was originally supplied, because problems were
558 reported on Solaris.
559
58c01c94
PH
560PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
561 Exim which did not show up earlier: it was assuming that a call to
562 SSL_CTX_set_info_callback() might give an error value. In fact, there is
563 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
564 was a macro that became an assignment, so it seemed to work. This has
565 changed to a proper function call with a void return, hence the compile
566 error. Exim's code has been fixed.
567
dee5a20a
PH
568PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
569 cpus.
570
d2ee6114
PH
571PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
572
b2d5182b
PH
573PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
574
79749a79
PH
575PH/37 If a message is not accepted after it has had an id assigned (e.g.
576 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
577 "Completed" line in the log. When some messages of this type were
578 selected by exigrep, they were listed as "not completed". Others were
579 picked up by some special patterns. I have improved the selection
580 criteria to be more general.
79749a79 581
c456d9bb
PH
582PH/38 The host_find_failed option in the manualroute router can now be set
583 to "ignore", to completely ignore a host whose IP address cannot be
584 found. If all hosts are ignored, the behaviour is controlled by the new
585 host_all_ignored option.
586
cd9868ec
PH
587PH/39 In a list of hosts for manualroute, if one item (either because of multi-
588 homing or because of multiple MX records with /mx) generated more than
589 one IP address, and the following item turned out to be the local host,
590 all the secondary addresses of the first item were incorrectly removed
591 from the list, along with the local host and any following hosts (which
592 is what is supposed to happen).
593
ebeaf996
PH
594PH/40 When Exim receives a message, it writes the login name, uid, and gid of
595 whoever called Exim into the -H file. In the case of the daemon it was
596 behaving confusingly. When first started, it used values for whoever
597 started the daemon, but after a SIGHUP it used the Exim user (because it
598 calls itself on a restart). I have changed the code so that it now always
599 uses the Exim user.
600
2679d413
PH
601PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
602 message are rejected with the same error (e.g. no authentication or bad
603 sender address), and a DATA command is nevertheless sent (as can happen
604 with PIPELINING or a stupid MUA), the error message that was given to the
605 RCPT commands is included in the rejection of the DATA command. This is
606 intended to be helpful for MUAs that show only the final error to their
607 users.
608
84024b72
PH
609PH/42 Another patch from the Sieve maintainer.
610
8005d38e
SC
611SC/02 Eximstats - Differentiate between permanent and temporary rejects.
612 Eximstats - Fixed some broken HTML links and added missing column headers
613 (Jez Hancock).
614 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
615 columns for Rejects, Temp Rejects, Ham, and Spam rows.
616
3298c6c6
SC
617SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
618
a43a27c5
PH
619PH/43 Yet another patch from the Sieve maintainer.
620
58eb016e 621PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
622 the response to the final '.' that terminates a message, but only in the
623 case where the client has not sent further data following the '.'
624 (unfortunately, this is allowed). However, in many cases there won't be
625 any further data because there won't be any more messages to send. A call
626 to select() can be used: if it shows that the input is "ready", there is
627 either input waiting, or the socket has been closed. An attempt to read
628 the next input character can distinguish the two cases. Previously, Exim
58eb016e 629 would have sent an OK response which the client would never have see.
563b63fa
PH
630 This could lead to message repetition. This fix should cure that, at
631 least in a lot of common cases.
58eb016e 632
b43a74ea
PH
633PH/45 Do not advertise STARTTLS in response to HELP unless it would be
634 advertised in response to EHLO.
635
b4ed4da0 636
5dd1517f
PH
637Exim version 4.66
638-----------------
639
640PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
641 fixed by 4.65/MH/01 (is this a record?) are fixed:
642
643 (i) An empty string was always treated as zero by the numeric comparison
644 operators. This behaviour has been restored.
645
646 (ii) It is documented that the numeric comparison operators always treat
647 their arguments as decimal numbers. This was broken in that numbers
648 starting with 0 were being interpreted as octal.
649
650 While fixing these problems I realized that there was another issue that
651 hadn't been noticed. Values of message_size_limit (both the global option
652 and the transport option) were treated as octal if they started with 0.
653 The documentation was vague. These values are now always treated as
654 decimal, and I will make that clear in the documentation.
655
656
93cfa765
TK
657Exim version 4.65
658-----------------
659
660TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
661 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
662 versions. (#438)
663
d6066548
MH
664MH/01 Don't check that the operands of numeric comparison operators are
665 integers when their expansion is in "skipping" mode (fixes bug
666 introduced by 4.64-PH/07).
667
4362ff0d
PH
668PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
669 child addresses, Exim now panics and dies. Previously, because the count
670 is held in a short int, deliveries were likely to be lost. As such a
671 large number of recipients for a single message is ridiculous
672 (performance will be very, very poor), I have chosen to impose a limit
673 rather than extend the field.
674
93cfa765 675
944e9e9c
TF
676Exim version 4.64
677-----------------
aa41d2de 678
21d74bd9
TK
679TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
680 leftover -K file (the existence of which was triggered by #402).
681 While we were at it, introduced process PID as part of the -K
682 filename. This should rule out race conditions when creating
683 these files.
684
685TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
686 processing considerably. Previous code took too long for large mails,
687 triggering a timeout which in turn triggers #401.
688
689TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
690 in the DK code in transports.c. sendfile() is not really portable,
691 hence the _LINUX specificness.
944e9e9c
TF
692
693TF/01 In the add_headers option to the mail command in an Exim filter,
694 there was a bug that Exim would claim a syntax error in any
695 header after the first one which had an odd number of characters
696 in the field name.
697
2b1c6e3a
PH
698PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
699 callout verification, Exim cached a "reject" for the entire domain. This
700 is correct for most verifications, but it is not correct for a recipient
701 verification with use_sender or use_postmaster set, because in that case
702 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
703 case of MAIL FROM:<> rejection from other early rejections (e.g.
704 rejection of HELO). When verifying a recipient using a non-null MAIL
705 address, the cache is ignored if it shows MAIL FROM:<> rejection.
706 Whatever the result of the callout, the value of the domain cache is
707 left unchanged (for any other kind of callout, getting as far as trying
708 RCPT means that the domain itself is ok).
709
1f872c80
PH
710PH/02 Tidied a number of unused variable and signed/unsigned warnings that
711 gcc 4.1.1 threw up.
712
713PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
714 manifest itself as EPIPE rather than ECONNECT. When tidying away a
715 session, the daemon ignores ECONNECT errors and logs others; it now
716 ignores EPIPE as well.
717
d203e649
PH
718PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
719 (quoted-printable decoding).
720
cc2ed8f7 721PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 722 later the small subsequent patch to fix an introduced bug.
f951fd57 723
ddfcd446
PH
724PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
725
d45b1de8
PH
726PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
727
728PH/08 An error is now given if message_size_limit is specified negative.
729
38a0a95f 730PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 731 to be given (somewhat) arbitrary names.
38a0a95f 732
a2405d83
JJ
733JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
734 in 4.64-PH/09.
735
736JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
737 miscellaneous code fixes
738
6ea85e9a
PH
739PH/10 Added the log_reject_target ACL modifier to specify where to log
740 rejections.
741
26da7e20
PH
742PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
743 hostname. This is wrong, because it relates to the incoming message (and
744 probably the interface on which it is arriving) and not to the outgoing
745 callout (which could be using a different interface). This has been
746 changed to use the value of the helo_data option from the smtp transport
747 instead - this is what is used when a message is actually being sent. If
748 there is no remote transport (possible with a router that sets up host
749 addresses), $smtp_active_hostname is used.
6ea85e9a 750
14aa5a05 751PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 752 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
753 (a) The code assumed that strncpy() returns a negative number on buffer
754 overflow, which isn't the case. Replaced with Exim's string_format()
755 function.
756 (b) There were several signed/unsigned issues. I just did the minimum
757 hacking in of casts. There is scope for a larger refactoring.
758 (c) The code used strcasecmp() which is not a standard C function.
759 Replaced with Exim's strcmpic() function.
760 (d) The code set only $1; it now sets $auth1 as well.
761 (e) A simple test gave the error "authentication client didn't specify
762 service in request". It would seem that Dovecot has changed its
763 interface. Fortunately there's a specification; I followed it and
764 changed what the client sends and it appears to be working now.
765
ff75a1f7
PH
766PH/13 Added $message_headers_raw to provide the headers without RFC 2047
767 decoding.
768
e6f6568e
PH
769PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
770 address A is aliased to B and C, where B exists and C does not. Without
771 -v the output is "A verified" because verification stops after a
772 successful redirection if more than one address is generated. However,
773 with -v the child addresses are also verified. Exim was outputting "A
774 failed to verify" and then showing the successful verification for C,
775 with its parentage. It now outputs "B failed to verify", showing B's
776 parentage before showing the successful verification of C.
777
d6f6e0dc
PH
778PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
779 look up a TXT record in a specific list after matching in a combined
780 list.
781
322050c2
PH
782PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
783 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
784 they consult the DNS. I had assumed they would set it the way they
785 wanted; and indeed my experiments on Linux seem to show that in some
786 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
787 To be on the safe side, however, I have now made the interface to
788 host_find_byname() similar to host_find_bydns(), with an argument
789 containing the DNS resolver options. The host_find_byname() function now
790 sets these options at its start, just as host_find_bydns() does. The smtp
791 transport options dns_qualify_single and dns_search_parents are passed to
792 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
793 of host_find_byname() use the default settings of RES_DEFNAMES
794 (qualify_single) but not RES_DNSRCH (search_parents).
795
08955dd3
PH
796PH/17 Applied (a modified version of) Nico Erfurth's patch to make
797 spool_read_header() do less string testing, by means of a preliminary
798 switch on the second character of optional "-foo" lines. (This is
799 overdue, caused by the large number of possibilities that now exist.
800 Originally there were few.) While I was there, I also converted the
801 str(n)cmp tests so they don't re-test the leading "-" and the first
802 character, in the hope this might squeeze out yet more improvement.
803
1eccaa59
PH
804PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
805 flag allowing group syntax was set by the header_syntax check but not
806 turned off, possible causing trouble later; (2) The flag was not being
807 set at all for the header_verify test, causing "group"-style headers to
808 be rejected. I have now set it in this case, and also caused header_
809 verify to ignore an empty address taken from a group. While doing this, I
810 came across some other cases where the code for allowing group syntax
811 while scanning a header line wasn't quite right (mostly, not resetting
812 the flag correctly in the right place). These bugs could have caused
813 trouble for malformed header lines. I hope it is now all correct.
814
602e59e5
PH
815PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
816 with the "reply" argument non-NULL. The code, however (which originally
817 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
818 but it didn't always do it. This confused somebody who was copying the
819 code for some other use. I have removed all the tests.
820
411ef850
PH
821PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
822 feature that was used to support insecure browsers during the U.S. crypto
823 embargo. It requires special client support, and Exim is probably the
824 only MTA that supported it -- and would never use it because real RSA is
825 always available. This code has been removed, because it had the bad
826 effect of slowing Exim down by computing (never used) parameters for the
827 RSA_EXPORT functionality.
828
7befa435
PH
829PH/21 On the advice of Timo Sirainen, added a check to the dovecot
830 authenticator to fail if there's a tab character in the incoming data
831 (there should never be unless someone is messing about, as it's supposed
832 to be base64-encoded). Also added, on Timo's advice, the "secured" option
833 if the connection is using TLS or if the remote IP is the same as the
834 local IP, and the "valid-client-cert option" if a client certificate has
835 been verified.
836
48da4259 837PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
838 authenticators. This can be used for authorization after authentication
839 succeeds. (In the case of plaintext, it servers for both authentication
840 and authorization.)
841
48da4259
PH
842PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
843 if any retry times were supplied.
844
d1d5595c
PH
845PH/24 Exim crashed if verify=helo was activated during an incoming -bs
846 connection, where there is no client IP address to check. In this
847 situation, the verify now always succeeds.
848
0ef732d9
PH
849PH/25 Applied John Jetmore's -Mset patch.
850
328895cc
PH
851PH/26 Added -bem to be like -Mset, but loading a message from a file.
852
fd700877
PH
853PH/27 In a string expansion for a processed (not raw) header when multiple
854 headers of the same name were present, leading whitespace was being
855 removed from all of them, but trailing whitespace was being removed only
856 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
857 before concatenation. Completely empty headers in a concatenation (as
858 before) are ignored.
fd700877 859
8dce1a6f
PH
860PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
861 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
862
17af4a17
PH
863PH/29 [Removed. This was a change that I later backed out, and forgot to
864 correct the ChangeLog entry (that I had efficiently created) before
865 committing the later change.]
f6c332bd
PH
866
867PH/30 Exim was sometimes attempting to deliver messages that had suffered
868 address errors (4xx response to RCPT) over the same connection as other
869 messages routed to the same hosts. Such deliveries are always "forced",
870 so retry times are not inspected. This resulted in far too many retries
871 for the affected addresses. The effect occurred only when there were more
872 hosts than the hosts_max_try setting in the smtp transport when it had
873 the 4xx errors. Those hosts that it had tried were not added to the list
874 of hosts for which the message was waiting, so if all were tried, there
875 was no problem. Two fixes have been applied:
876
877 (i) If there are any address or message errors in an SMTP delivery, none
878 of the hosts (tried or untried) are now added to the list of hosts
879 for which the message is waiting, so the message should not be a
880 candidate for sending over the same connection that was used for a
881 successful delivery of some other message. This seems entirely
882 reasonable: after all the message is NOT "waiting for some host".
883 This is so "obvious" that I'm not sure why it wasn't done
884 previously. Hope I haven't missed anything, but it can't do any
885 harm, as the worst effect is to miss an optimization.
886
887 (ii) If, despite (i), such a delivery is accidentally attempted, the
888 routing retry time is respected, so at least it doesn't keep
889 hammering the server.
890
c1114884
PH
891PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
892 in ${readsocket because some servers need this prod.
893
7a0743eb
PH
894PH/32 Added some extra debug output when updating a wait-xxx database.
895
0d85fa3f
PH
896PH/33 The hint "could be header name not terminated by colon", which has been
897 given for certain expansion errors for a long time, was not being given
898 for the ${if def:h_colon_omitted{... case.
899
1bf43b78
PH
900PH/34 The spec says: "With one important exception, whenever a domain list is
901 being scanned, $domain contains the subject domain." There was at least
902 one case where this was not true.
903
520de300
PH
904PH/35 The error "getsockname() failed: connection reset by peer" was being
905 written to the panic log as well as the main log, but it isn't really
906 panic-worthy as it just means the connection died rather early on. I have
907 removed the panic log writing for the ECONNRESET error when getsockname()
908 fails.
909
48c7f9e2
PH
910PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
911 runs only) independently of the message's sender address. This meant
912 that, if the 4xx error was in fact related to the sender, a different
913 message to the same recipient with a different sender could confuse
914 things. In particualar, this can happen when sending to a greylisting
915 server, but other circumstances could also provoke similar problems.
916 I have changed the default so that the retry time for these errors is now
917 based a combination of the sender and recipient addresses. This change
918 can be overridden by setting address_retry_include_sender=false in the
919 smtp transport.
920
99ea1c86
PH
921PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
922 remote server are returned as part of bounce messages. This was not
923 happening for LMTP over a pipe (the lmtp transport), but now it is the
924 same for both kinds of LMTP.
925
a2042e78
PH
926PH/38 Despite being documented as not happening, Exim was rewriting addresses
927 in header lines that were in fact CNAMEs. This is no longer the case.
928
4fbcfc2e
PH
929PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
930 and queue runs started by the daemon processed all messages. This has
931 been fixed so that -R and -S can now usefully be given with -q<time>.
932
aa41d2de
PH
933PH/40 Import PCRE release 6.7 (fixes some bugs).
934
af561417
PH
935PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
936
3cc66b45
PH
937PH/42 Give an error if -q is specified more than once.
938
194cc0e4
PH
939PH/43 Renamed the variables $interface_address and $interface_port as
940 $received_ip_address and $received_port, to make it clear that these
941 values apply to message reception, and not to the outgoing interface when
942 a message is delivered. (The old names remain recognized, of course.)
943
a401ddaa
PH
944PH/44 There was no timeout on the connect() call when using a Unix domain
945 socket in the ${readsocket expansion. There now is.
946
4e88a19f
PH
947PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
948 be meaningful with "accept".
949
d7d7b289
SC
950SC/01 Eximstats V1.43
951 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
952
953SC/02 Eximstats V1.44
954 Use a glob alias rather than an array ref in the generated
955 parser. This improves both readability and performance.
956
957SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
958 Collect SpamAssassin and rejection statistics.
959 Don't display local sender or destination tables unless
960 there is data to show.
961 Added average volumes into the top table text output.
962
963SC/04 Eximstats V1.46
964 Collect data on the number of addresses (recipients)
965 as well as the number of messages.
966
967SC/05 Eximstats V1.47
968 Added 'Message too big' to the list of mail rejection
969 reasons (thanks to Marco Gaiarin).
970
971SC/06 Eximstats V1.48
972 Mainlog lines which have GMT offsets and are too short to
973 have a flag are now skipped.
974
975SC/07 Eximstats V1.49 (Alain Williams)
976 Added the -emptyok flag.
977
978SC/08 Eximstats V1.50
979 Fixes for obtaining the IP address from reject messages.
980
0ea2a468
JJ
981JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
982 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
983 whitesspace changes from 4.64-PH/27
984
985JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
986 match 4.64-PH/13
987
988JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
989 are found, allow negative numbers in numeric criteria)
990
991JJ/06 exipick.20061117.2, added new $message_body_missing variable
992
993JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
994 to match changes made in 4.64-PH/43
995
8a10f5a4
PH
996PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
997
30e18802
PH
998PH/47 Put in an explicit test for a DNS lookup of an address record where the
999 "domain" is actually an IP address, and force a failure. This locks out
1000 those revolvers/nameservers that support "A-for-A" lookups, in
1001 contravention of the specifications.
1002
55728a4f
PH
1003PH/48 When a host name was looked up from an IP address, and the subsequent
1004 forward lookup of the name timed out, the host name was left in
1005 $sender_host_name, contrary to the specification.
d7d7b289 1006
d7837193
PH
1007PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1008 restricted to single-key lookups, Exim was not diagnosing an error if
1009 * or *@ was used with a query-style lookup.
1010
87054a31
PH
1011PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1012
ea2c01d2
MH
1013MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1014 long ago, but noone interested enough thought of it. Let's just say that
1015 the "1.1" means that there are some new functions that weren't there at
1016 some point in the past.
1017
e4fa6968
PH
1018PH/51 Error processing for expansion failure of helo_data from an smtp
1019 transport during callout processing was broken.
1020
56f5d9bd
PH
1021PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1022 tested/used via the -bh/-bhc/-bs options.
1023
922e1c28
PH
1024PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1025 bug, fixed in subsequent PCRE releases).
1026
21eb6e72
PH
1027PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1028 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1029
a0540757
PH
1030PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1031
944e9e9c 1032
478be7b0
SC
1033Exim version 4.63
1034-----------------
1035
1036SC/01 Use a glob alias rather than an array ref in eximstats generated
1037 parser. This improves both readability and performance.
1038
1039SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1040 Don't display local sender or destination tables in eximstats unless
1041 there is data to show.
1042 Added average volumes into the eximstats top table text output.
1043
1044SC/03 Collect data on the number of addresses (recipients) as well
1045 as the number of messages in eximstats.
1046
2b965a65
TF
1047TF/01 Correct an error in the documentation for the redirect router. Exim
1048 does (usually) call initgroups() when daemonizing.
478be7b0 1049
45b91596
PH
1050TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1051 with consistent privilege compared to when running as a daemon.
478be7b0 1052
c59f5781
TF
1053TF/03 Note in the spec that $authenticated_id is not set for local
1054 submissions from trusted users.
1055
90fc3069
TF
1056TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1057 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1058
6083aca0
TF
1059TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1060 by adding some example configuration directives to the default
1061 configuration file. A little bit of work is required to uncomment the
1062 directives and define how usernames and passwords are checked, but
1063 there is now a framework to start from.
1064
765b530f
PH
1065PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1066 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1067 without this. I don't know how relevant this is to other LDAP libraries.
1068
4e167a8c
PH
1069PH/02 Add the verb name to the "unknown ACL verb" error.
1070
4608d683
PH
1071PH/03 Magnus Holmgren's patch for filter_prepend_home.
1072
b8dc3e4a
PH
1073PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1074
5418e93b
PH
1075PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1076 directory not expanded when it should be if an expanded home directory
1077 was set for the address (which is overridden by the transport).
1078
b4a9bda2
PH
1079PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1080 libradius.
1081
45b91596
PH
1082PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1083 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1084 because it is too late at that time, and has no effect.
1085
5547e2c5
PH
1086PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1087 security issue with \' (bugzilla #107). I could not use the
1088 PQescapeStringConn() function, because it needs a PGconn value as one of
1089 its arguments.
1090
dbcef0ea
PH
1091PH/08 When testing addresses using -bt, indicate those final addresses that
1092 are duplicates that would not cause an additional delivery. At least one
1093 person was confused, thinking that -bt output corresponded to deliveries.
1094 (Suppressing duplicates isn't a good idea as you lose the information
1095 about possibly different redirections that led to the duplicates.)
1096
25257489
PH
1097PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1098 systems where poll() doesn't work, in particular OS X.
1099
c816d124
PH
1100PH/10 Added more information to debugging output for retry time not reached.
1101
a9ccd69a
PH
1102PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1103 operations in malware.c.
1104
75fa1910
PH
1105PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1106 signatures.
1107
a7d7aa58
PH
1108PH/13 If write_rejectlog was set false when logging was sent to syslog with
1109 syslog_duplication set false, log lines that would normally be written
1110 both the the main log and to the reject log were not written to syslog at
1111 all.
1112
42119b09
PH
1113PH/14 In the default configuration, change the use of "message" in ACL warn
1114 statements to "add_header".
1115
41609df5
PH
1116PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1117 not followed by a command (e.g. "seen endif").
1118
a5bd321b
PH
1119PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1120 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1121 latter.
1122
e85a7ad5 1123PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1124 so that it is now:
1125
e85a7ad5
PH
1126 ${if or { \
1127 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1128 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1129 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1130 }{no}{yes}}
1131
e85a7ad5
PH
1132 The Auto-Submitted: and various List- headers are standardised, whereas I
1133 don't think Precedence: ever was.
5dff5817 1134
d8fe1c03
PH
1135PH/18 Refactored debugging code in route_finduser() to show more information,
1136 in particular, the error code if getpwnam() issues one.
1137
16282d2b
PH
1138PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1139 This is apparently needed in addition to the PH/07 change above to avoid
1140 any possible encoding problems.
1141
35d40a98
PH
1142PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1143 but not after initializing Perl.
1144
034d99ab
PH
1145PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1146 output them only if debugging. By default they are written stderr,
1147 apparently, which is not desirable.
1148
6ec97b1b
PH
1149PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1150 queries.
1151
e22ca4ac
JJ
1152JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1153 --not options
1154
1155JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1156
33d73e3b
PH
1157PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1158 authenticated or an ident call has been made. Suppress the default
1159 values for $authenticated_id and $authenticated_sender (but permit -oMai
1160 and -oMas) when testing with -bh.
1161
9ecb03f3
PH
1162PH/24 Re-jigged the order of the tests in the default configuration so that the
1163 tests for valid domains and recipients precede the DNS black list and CSA
1164 tests, on the grounds that those ones are more expensive.
1165
084efe8d
PH
1166PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1167 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1168 This bug exists in every version of Exim that I still have, right back to
1169 0.12.
1170
366fc9f0
PH
1171PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1172 However, an attempt to turn on case-sensitivity in a regex key by
1173 including (?-i) didn't work because the subject string was already
1174 lowercased, and the effects were non-intuitive. It turns out that a
1175 one-line patch can be used to allow (?-i) to work as expected.
1176
c59f5781 1177
c887c79e
TF
1178Exim version 4.62
1179-----------------
1180
1181TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1182 other effects) broke the use of negated acl sub-conditions.
1183
1cce3af8
PH
1184PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1185 patch).
1186
afb3eaaf
PH
1187PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1188 "Deny" causes Exim to reject the incoming connection with a 554 error.
1189 Unfortunately, if there is a major crisis, such as a disk failure,
1190 tcp-wrappers gives "deny", whereas what one would like would be some
1191 kind of temporary error. A kludge has been added to help with this.
1192 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1193 554 error is used if errno is still zero or contains ENOENT (which occurs
1194 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1195 451 error is used.
1196
e173618b
PH
1197PH/03 Add -lutil to the default FreeBSD LIBS setting.
1198
dd16e114
PH
1199PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1200 errors. Otherwise a message that provokes a temporary error (when other
1201 messages do not) can cause a whole host to time out.
1202
f7fd3850
PH
1203PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1204 addresses were routed directly to files or pipes from a redirect router.
1205 File deliveries just didn't batch; pipe deliveries might have suffered
1206 odd errors.
1207
d87df92c
PH
1208PH/06 A failure to get a lock for a hints database would erroneously always say
1209 "Failed to get write lock", even when it was really a read lock.
1210
7e9f683d
PH
1211PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1212 of 0600. This has been changed to use the value of the lockfile_mode
1213 option (which defaults to 0600).
1214
bfad5236
PH
1215PH/08 Applied small patch from the Sieve maintainer.
1216
01c490df
PH
1217PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1218 folder from quota calculations, a direct delivery into this folder messed
1219 up the contents of the maildirsize file. This was because the regex was
1220 used only to exclude .Trash (or whatever) when the size of the mailbox
1221 was calculated. There was no check that a delivery was happening into an
1222 excluded directory. This bug has been fixed by ignoring all quota
1223 processing for deliveries into excluded directories.
1224
d6629cdc
PH
1225PH/10 Added the maildirfolder_create_regex option to appendfile.
1226
1cce3af8 1227
214e2000
PH
1228Exim version 4.61
1229-----------------
1230
1231PH/01 The code for finding all the local interface addresses on a FreeBSD
1232 system running IPv6 was broken. This may well have applied to all BSD
1233 systems, as well as to others that have similar system calls. The broken
1234 code found IPv4 interfaces correctly, but gave incorrect values for the
1235 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1236 that it would not match correctly against @[] and not recognize the IPv6
1237 addresses as local.
1238
f9daeae0
PH
1239PH/02 The ipliteral router was not recognizing addresses of the form user@
1240 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1241
7e66e54d
PH
1242PH/03 Added disable_ipv6.
1243
c8ea1597
PH
1244PH/04 Changed $reply_address to use the raw form of the headers instead of the
1245 decoded form, because it is most often used to construct To: headers
1246 lines in autoreplies, and the decoded form may well be syntactically
1247 invalid. However, $reply_address has leading white space removed, and all
1248 newlines turned into spaces so that the autoreply transport does not
1249 grumble.
1250
911f6fde
PH
1251PH/05 If group was specified without a user on a router, and no group or user
1252 was specified on a transport, the group from the router was ignored.
1253
47ca6d6c
PH
1254PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1255 for visible compile-time settings that can be used to change these
1256 numbers, for those that want even more. Backwards compatibility with old
1257 spool files has been maintained. However, going back to a previous Exim
1258 release will lost any variables that are in spool files.
1259
ed0e9820
PH
1260PH/07 Two small changes when running in the test harness: increase delay when
1261 passing a TCP/IP connection to a new process, in case the original
1262 process has to generate a bounce, and remove special handling of
1263 127.0.0.2 (sic), which is no longer necessary.
1264
eff37e47
PH
1265PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1266 be the same on different OS.
1267
1921d2ea
PH
1268PH/09 Moved a debug statement in filter processing to avoid a race problem when
1269 testing.
1270
b3f69ca8
JJ
1271JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1272 whether --show-vars was specified or not
1273
1274JJ/02 exipick: Added support for new ACL variable spool format introduced
1275 in 4.61-PH/06
1276
424a1c63
PH
1277PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1278 syntactically invalid From: or Reply-to: line, and a filter used this to
1279 generate an autoreply, and therefore failed to obtain an address for the
1280 autoreply, Exim could try to deliver to a non-existent relative file
1281 name, causing unrelated and misleading errors. What now happens is that
1282 it logs this as a hard delivery error, but does not attempt to create a
1283 bounce message.
1284
7a100415
PH
1285PH/11 The exinext utility has a -C option for testing purposes, but although
1286 the given file was scanned by exinext itself; it wasn't being passed on
1287 when Exim was called.
1288
19b9dc85
PH
1289PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1290 an end-of-file indication when reading a command response.
1291
309bd837
PH
1292PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1293 compiled. In many other places in Exim, IPv6 addresses are always
1294 recognized, so I have changed this. It also means that IPv4 domain
1295 literals of the form [IPV4:n.n.n.n] are now always recognized.
1296
59e82a2a
PH
1297PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1298 used if the router is not running as root, for example, when verifying at
1299 ACL time, or when using -bh. The debugging output from this situation was
1300 non-existent - all you got was a failure to exec. I have made two
1301 changes:
1302
1303 (a) Failures to set uid/gid, the current directory, or a process leader
1304 in a subprocess such as that created by queryprogram now generate
1305 suitable debugging ouput when -d is set.
1306
1307 (b) The queryprogram router detects when it is not running as root,
1308 outputs suitable debugging information if -d is set, and then runs
1309 the subprocess without attempting to change uid/gid.
1310
9edc04ce
PH
1311PH/15 Minor change to Makefile for building test_host (undocumented testing
1312 feature).
1313
1349e1e5
PH
1314PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1315 additional section of a DNS packet that returns MX or SRV records.
1316 Instead, it always explicitly searches for A/AAAA records. This avoids
1317 major problems that occur when a DNS server includes only records of one
1318 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1319 fixed another bug: if SRV records were looked up and the corresponding
1320 address records were *not* found in the additional section, the port
1321 values from the SRV records were lost.
1322
ea49d0e1
PH
1323PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1324 using the correct key (the original address) when searching the retry
1325 rules in order to find which one to use for generating the retry hint.
1326
064a94c9
PH
1327PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1328 adding the default one. Similarly, if it contains a Reply-To: header, the
1329 errors_reply_to option, if set, is not used.
1330
727071f8
PH
1331PH/19 When calculating a retry time, Exim used to measure the "time since
1332 failure" by looking at the "first failed" field in the retry record. Now
1333 it does not use this if it is later than than the arrival time of the
1334 message. Instead it uses the arrival time. This makes for better
1335 behaviour in cases where some deliveries succeed, thus re-setting the
1336 "first failed" field. An example is a quota failure for a huge message
1337 when small messages continue to be delivered. Without this change, the
1338 "time since failure" will always be short, possible causing more frequent
1339 delivery attempts for the huge message than are intended.
dd16e114 1340 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1341
f78eb7c6
PH
1342PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1343 $1, $2, $3) because the numerical variables can be reset during some
1344 expansion items (e.g. "match"), thereby losing the authentication data.
1345
21c28500
PH
1346PH/21 Make -bV show the size of off_t variables so that the test suite can
1347 decide whether to run tests for quotas > 2G.
1348
1349PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1350 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1351 filecount value is greater than 2G or if a quota value is greater than 2G
1352 on a system where the size of off_t is not greater than 4, a panic error
1353 is given.
1354
1688f43b
PH
1355PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1356 never match. The debug and -bh output now contains an explicit error
1357 message indicating a malformed IPv4 address or mask.
1358
1359PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1360 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1361 PH/23 above applies.
1362
9675b384
PH
1363PH/25 Do not write to syslog when running in the test harness. The only
1364 occasion when this arises is a failure to open the main or panic logs
1365 (for which there is an explicit test).
1366
6a3f1455
PH
1367PH/26 Added the /no_tell option to "control=freeze".
1368
dac79d3e
PH
1369PH/27 If a host name lookup failed very early in a connection, for example, if
1370 the IP address matched host_lookup and the reverse lookup yielded a name
1371 that did not have a forward lookup, an error message of the form "no IP
1372 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1373 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1374
5977a0b3
PH
1375PH/28 An enabling patch from MH: add new function child_open_exim2() which
1376 allows the sender and the authenticated sender to be set when
1377 submitting a message from within Exim. Since child_open_exim() is
1378 documented for local_scan(), the new function should be too.
1379
c91535f3
PH
1380PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1381 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1382 results in an empty string is now treated as unset.
1383
0d46a8c8
PH
1384PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1385
278c6e6c
PH
1386PH/31 Added sender_verify_fail logging option.
1387
2cbb4081
PH
1388PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1389 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1390 tidied the source and removed it altogether.
1391
3eef829e
PH
1392PH/33 When a queue run was abandoned because the load average was too high, a
1393 log line was always written; now it is written only if the queue_run log
1394 selector is set. In addition, the log line for abandonment now contains
1395 information about the queue run such as the pid. This is always present
1396 in "start" and "stop" lines but was omitted from the "abandon" line.
1397
1ab95fa6
PH
1398PH/34 Omit spaces between a header name and the colon in the error message that
1399 is given when verify = headers_syntax fails (if there are lots of them,
1400 the message gets confusing).
1401
230205fc
PH
1402PH/35 Change the default for dns_check_names_pattern to allow slashes within
1403 names, as there are now some PTR records that contain slashes. This check
1404 is only to protect against broken name servers that fall over on strange
1405 characters, so the fact that it applies to all lookups doesn't matter.
1406
75e0e026
PH
1407PH/36 Now that the new test suite is complete, we can remove some of the
1408 special code in Exim that was needed for the old test suite. For example,
1409 sorting DNS records because real resolvers return them in an arbitrary
1410 order. The new test suite's fake resolver always returns records in the
1411 same order.
1412
1413PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1414 bounces) except when queue_only is set, to avoid logging races between
1415 the different processes.
1416
145396a6
PH
1417PH/38 Panic-die if .include specifies a non-absolute path.
1418
3cd34f13
PH
1419PH/39 A tweak to the "H" retry rule from its user.
1420
11121d3d
JJ
1421JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1422 a label. They prevented compilation on older perls.
1423
1424JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1425 a warning to be raised on newish perls.
1426
1427JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1428 on queue. Changes to match documented behaviour of showing count of
1429 messages matching specified criteria.
1430
8def5aaf
PH
1431PH/40 Changed the default ident timeout from 30s to 5s.
1432
929ba01c
PH
1433PH/41 Added support for the use of login_cap features, on those BSD systems
1434 that have them, for controlling the resources used by pipe deliveries.
1435
2632889e
PH
1436PH/42 The content-scanning code uses fopen() to create files in which to put
1437 message data. Previously it was not paying any attention to the mode of
1438 the files. Exim runs with umask(0) because the rest of the code creates
1439 files with open(), and sets the required mode explicitly. Thus, these
1440 files were ending up world-writeable. This was not a big issue, because,
1441 being within the spool directory, they were not world-accessible. I have
1442 created a function called modefopen, which takes an additional mode
1443 argument. It sets umask(777), creates the file, chmods it to the required
1444 mode, then resets the umask. All the relevant calls to fopen() in the
1445 content scanning code have been changed to use this function.
1446
944a9c55
PH
1447PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1448 to 24 hours. This avoids potential overflow problems when processing G
1449 and H retry rules. I suspect nobody ever tinkers with this value.
1450
4a23603b
PH
1451PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1452
4730f942
PH
1453PH/45 When the plaintext authenticator is running as a client, the server's
1454 challenges are checked to ensure they are valid base64 strings. By
1455 default, the authentication attempt is cancelled if an invalid string is
1456 received. Setting client_ignore_invalid_base64 true ignores these errors.
1457 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1458 they are received. Thus, the responses can be made to depend on the
1459 challenges. If an invalid string is ignored, an empty string is placed in
1460 the variable.
1461
30dba1e6
PH
1462PH/46 Messages that are created by the autoreply transport now contains a
1463 References: header, in accordance with RFCs 2822 and 3834.
1464
382afc6b
PH
1465PH/47 Added authenticated_sender_force to the smtp transport.
1466
a86229cf
PH
1467PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1468
50c99ba6
PH
1469PH/49 Installed latest patch from the Sieve maintainer.
1470
d35e429d
PH
1471PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1472 was also set, the appendfile transport was unnecessarily scanning a
1473 directory of message files (e.g. for maildir delivery) to find the count
1474 of files (along with the size), even though it did not need this
1475 information. It now does the scan only if it needs to find either the
1476 size of the count of files.
1477
f90d018c
PH
1478PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1479
75def545
PH
1480PH/52 Two bugs concerned with error handling when the smtp transport is
1481 used in LMTP mode:
1482
1483 (i) Exim was not creating retry information for temporary errors given
1484 for individual recipients after the DATA command when the smtp transport
1485 was used in LMTP mode. This meant that they could be retried too
1486 frequently, and not timed out correctly.
1487
1488 (ii) Exim was setting the flag that allows error details to be returned
1489 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1490 recipients that were returned after the DATA command.
1491
1492PH/53 This is related to PH/52, but is more general: for any failing address,
1493 when detailed error information was permitted to be returned to the
1494 sender, but the error was temporary, then after the final timeout, only
1495 "retry timeout exceeded" was returned. Now it returns the full error as
1496 well as "retry timeout exceeded".
1497
c46782ef
PH
1498PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1499 do this, and (what is worse) MTAs that accept it.
1500
71fafd95
PH
1501PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1502 will now be deprecated.
1503
2c5db4fd
PH
1504PH/56 New os.c-cygwin from the Cygwin maintainer.
1505
9cf6b11a
JJ
1506JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1507 formats (previously only available in exim formats via -bpr, -bpru,
1508 and -bpra. Now also available in native and exiqgrep formats)
1509
1510JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1511 with very large, slow to parse queues
1512
1513JJ/08 exipick: added ! as generic prefix to negate any criteria format
1514
1515JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1516
898d150f
PH
1517PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1518 responses to authentication challenges, though it was showing the
1519 challenges; (ii) I've removed the CR characters from the debug output for
1520 SMTP output lines.
1521
46218253
PH
1522PH/58 Allow for the insertion of a newline as well as a space when a string
1523 is turned into more than one encoded-word during RFC 2047 encoding. The
1524 Sieve code now uses this.
1525
e97957bc
PH
1526PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1527 data_4xx, lost_connection, tls_required.
1528
81e509d7
PH
1529PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1530 message was being sent as an SMTP response.
1531
3d240ff7
PH
1532PH/61 Add -l and -k options to exicyclog.
1533
b37c4101
PH
1534PH/62 When verifying, if an address was redirected to one new address, so that
1535 verification continued, and the new address failed or deferred after
1536 having set something in $address_data, the value of $address_data was not
1537 passed back to the ACL. This was different to the case when no
1538 redirection occurred. The value is now passed back in both cases.
1539
79378e0f
PH
1540PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1541 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1542 use login_cap.h, so on its own it isn't the distinguishing feature. The
1543 new name refers directly to the setclassresources() function.
1544
e49c7bb4
PH
1545PH/65 Added configuration files for NetBSD3.
1546
d114ec46
PH
1547PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1548
f3d7df6c
PH
1549PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1550 is preferred over IPv4.
1551
715ab376
PH
1552PH/68 The bounce_return_message and bounce_return_body options were not being
1553 honoured for bounces generated during the reception of non-SMTP messages.
1554 In particular, this applied to messages rejected by the ACL. This bug has
1555 been fixed. However, if bounce_return_message is true and bounce_return_
1556 body is false, the headers that are returned for a non-SMTP message
1557 include only those that have been read before the error was detected.
1558 (In the case of an ACL rejection, they have all been read.)
1559
6b31b150
PH
1560PH/69 The HTML version of the specification is now built in a directory called
1561 spec_html instead of spec.html, because the latter looks like a path with
1562 a MIME-type, and this confuses some software.
1563
1564PH/70 Catch two compiler warnings in sieve.c.
1565
d515a917
PH
1566PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1567 function verify_get_ident() calls ip_connect() to connect a socket, but
1568 if the "connect()" function timed out, ip_connect() used to close the
1569 socket. However, verify_get_ident() also closes the socket later, and in
1570 between Exim writes to the log, which may get opened at this point. When
1571 the socket was closed in ip_connect(), the log could get the same file
1572 descriptor number as the socket. This naturally causes chaos. The fix is
1573 not to close the socket in ip_connect(); the socket should be closed by
1574 the function that creates it. There was only one place in the code where
1575 this was missing, in the iplookup router, which I don't think anybody now
1576 uses, but I've fixed it anyway.
1577
9b8fadde
PH
1578PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1579 well as to direct DNS lookups. Otherwise the handling of names in host
1580 lists is inconsistent and therefore confusing.
1581
214e2000 1582
5de37277
PH
1583Exim version 4.60
1584-----------------
1585
cc38ddbf
PH
1586PH/01 Two changes to the default runtime configuration:
1587
1588 (1) Move the checks for relay_from_hosts and authenticated clients from
1589 after to before the (commented out) DNS black list checks.
1590
1591 (2) Add control=submission to the relay_from_hosts and authenticated
1592 clients checks, on the grounds that messages accepted by these
1593 statements are most likely to be submissions.
5de37277 1594
72fdd6ae
PH
1595PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1596
1597 (1) Generate an error if the third argument for the ${prvs expansion is
1598 not a single digit.
1599
1600 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1601 string.
1602
1603 (3) Reset the variables that are obtained from the first argument of
1604 ${prvscheck and used in the second argument before leaving the code,
1605 because their memory is reclaimed, so using them afterwards may do
1606 silly things.
1607
1608 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1609 one (it's much easier than Tom thought :-).
1610
1611 (5) Because of (4), we can now allow for the use of $prvscheck_result
1612 inside the third argument.
cb9328de 1613
cb741023
PH
1614PH/03 For some reason, the default setting of PATH when running a command from
1615 a pipe transport was just "/usr/bin". I have changed it to
1616 "/bin:/usr/bin".
1617
f174f16e
PH
1618PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1619 anything to be listed in the output from -bV.
b2f5a032 1620
c25242d7
PH
1621PH/05 When a filter generated an autoreply, the entire To: header line was
1622 quoted in the delivery log line, like this:
1623
1624 => >A.N.Other <ano@some.domain> <original@ddress> ...
1625
1626 This has been changed so that it extracts the operative address. There
1627 may be more than one such address. If so, they are comma-separated, like
1628 this:
1629
1630 => >ano@some.domain,ona@other.domain <original@ddress> ...
1631
82c19f95
PH
1632PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1633 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1634 not being looked up in the rDNS to get a host name, Exim was showing the
1635 IP address twice in Received: lines, even though the IP addresses were
1636 identical. For example:
1637
1638 Received: from [1.2.3.4] (helo=[1.2.3.4])
1639
1640 However, if the real host name was known, it was omitting the HELO data
1641 if it matched the actual IP address. This has been tidied up so that it
1642 doesn't show the same IP address twice.
1643
d7ffbc12
PH
1644PH/07 When both +timestamp and +memory debugging was on, the value given by
1645 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1646 called by the debug printing, thereby overwriting the timestamp buffer.
1647 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1648
9f526266
PH
1649PH/08 When the original message was included in an autoreply transport, it
1650 always said "this is a copy of the message, including all the headers",
1651 even if body_only or headers_only was set. It now gives an appropriate
1652 message.
1653
87fcc8b9
PH
1654PH/09 Applied a patch from the Sieve maintainer which:
1655
1656 o fixes some comments
1657 o adds the (disabled) notify extension core
1658 o adds some debug output for the result of if/elsif tests
1659 o points to the current vacation draft in the documentation
1660 and documents the missing references header update
1661
1662 and most important:
1663
1664 o fixes a bug in processing the envelope test (when testing
1665 multiple envelope elements, the last element determinted the
1666 result)
1667
456682f5
PH
1668PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1669 Electronic Mail") by including:
1670
1671 Auto-submitted: auto-generated
1672
1673 in the messages that it generates (bounce messages and others, such as
1674 warnings). In the case of bounce messages for non-SMTP mesages, there was
1675 also a typo: it was using "Auto_submitted" (underscore instead of
1676 hyphen). Since every message generated by Exim is necessarily in response
1677 to another message, thes have all been changed to:
1678
1679 Auto-Submitted: auto-replied
1680
1681 in accordance with these statements in the RFC:
1682
1683 The auto-replied keyword:
1684
1685 - SHOULD be used on messages sent in direct response to another
1686 message by an automatic process,
1687
1688 - MUST NOT be used on manually-generated messages,
1689
1690 - MAY be used on Delivery Status Notifications (DSNs) and Message
1691 Disposition Notifications (MDNs),
1692
1693 - MUST NOT be used on messages generated by automatic or periodic
1694 processes, except for messages which are automatic responses to
1695 other messages.
1696
3e46c1aa
PH
1697PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1698 to the default Received: header definition.
456682f5 1699
49826d12
PH
1700PH/12 Added log selector acl_warn_skipped (default on).
1701
eba0c039
PH
1702PH/13 After a successful wildlsearch lookup, discard the values of numeric
1703 variables because (a) they are in the wrong storage pool and (b) even if
1704 they were copied, it wouldn't work properly because of the caching.
1705
a0d6ba8a
PH
1706PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1707 checking when decoding. Apparently there are clients that generate
1708 overlong encoded strings. Why am I not surprised?
1709
f0917727
PH
1710PH/15 If the first argument of "${if match_address" was not empty, but did not
1711 contain an "@" character, Exim crashed. Now it writes a panic log message
1712 and treats the condition as false.
1713
096fee00
PH
1714PH/16 In autoreply, treat an empty string for "once" the same as unset.
1715
024bd3c2
PH
1716PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1717 extension "envelope-auth". The code is finished and in agreement with
1718 other implementations, but there is no documentation so far and in fact,
1719 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1720 not changing the active code.
1721
1722 Print executed "if" and "elsif" statements when debugging is used. This
1723 helps a great deal to understand what a filter does.
1724
1725 Document more things not specified clearly in RFC3028. I had all this
1726 sorted out, when out of a sudden new issues came to my mind. Oops."
1727
df199fec
PH
1728PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1729 (Bugzilla #53).
1730
d27f1df3
PH
1731PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1732 canonical form (as documented). However, after a host name lookup from
1733 the IP address, check_host() was doing a simple string comparison with
1734 addresses acquired from the DNS when checking that the found name did
1735 have the original IP as one of its addresses. Since any found IPv6
1736 addresses are likely to be in abbreviated form, the comparison could
1737 fail. Luckily, there already exists a function for doing the comparison
1738 by converting both addresses to binary, so now that is used instead of
1739 the text comparison.
1740
96776534
PH
1741PH/20 There was another similar case to PH/19, when a complete host name was
1742 given in a host list; looking up its IP address could give an abbreviated
1743 form, whereas the current host's name might or might not be abbreviated.
1744 The same fix has been applied.
1745
5de37277 1746
9a799bc0
PH
1747Exim version 4.54
1748-----------------
1749
1750PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1751 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1752 It now does.
1753
99a4b039
PH
1754PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1755 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1756
1757PH/03 Typo: missing ".o" in src/pcre/Makefile.
1758
4b233853
PH
1759PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1760 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1761 Also, for "Auto-Submitted", treat anything other than "no" as
1762 non-personal, in accordance with RFC 3834. (Previously it treated
1763 anything starting "auto-" as non-personal.)
1764
8857ccfd
PH
1765TF/01 The control=submission/name=... option had a problem with syntax
1766 errors if the name included a slash character. The /name= option
1767 now slurps the rest of the string, so it can include any characters
1768 but it must come last in the list of options (after /sender_retain
1769 or /domain=).
1770
433a2980
PH
1771PH/05 Some modifications to the interface to the fake nameserver for the new
1772 testing suite.
1773
3e46c1aa 1774
9a799bc0 1775
e3a311ba
TK
1776Exim version 4.53
1777-----------------
1778
1779TK/01 Added the "success_on_redirect" address verification option. See
1780 NewStuff for rationale and an example.
1781
13b685f9
PH
1782PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1783
395ff96d
PH
1784PH/02 Patch to exigrep to allow it to work on syslog lines.
1785
5b68f6e4
PH
1786PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1787 fread() to skip over the body file's header line, because in Cygwin the
1788 header line is locked and is inaccessible.
1789
1ab52c69
PH
1790PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1791 co-exist for some time) to make it clear that it is the Exim ID that is
1792 referenced, not the Message-ID: header line.
1793
b07e6aa3
PH
1794PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1795 string_format() function, because snprintf() does not exist on all
1796 operating systems.
1797
254e032f
PH
1798PH/06 The use of forbid_filter_existstest now also locks out the use of the
1799 ${stat: expansion item.
1800
3af76a81
PH
1801PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1802 protocol synchronization error", to keep the pedants happy.
1803
2548ba04
PH
1804PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1805 well as for IRIX systems, when gcc is being used. See the host.c source
1806 file for comments.
1807
b6c6011d
PH
1808PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1809
cf39cf57
PH
1810PH/10 Named domain lists were not working if used in a queue_smtp_domains
1811 setting.
1812
f1513293
PH
1813PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1814 transport and to the smtp transport in LMTP mode.
1815
727549a4
PH
1816TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1817
af46795e
PH
1818PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1819 run a filter in a subprocess. This could lead to confusion in subsequent
1820 lookups in the parent process. There should also be a search_tidyup() at
1821 the end of the subprocess.
1822
d7b47fd0
PH
1823PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1824 only if the host matched helo_try_verify_hosts, which caused the
1825 verification to occur when the EHLO/HELO command was issued. The ACL just
1826 tested the remembered result. Now, if a previous verification attempt has
1827 not happened, "verify = helo" does it there and then.
1828
ee744174
JJ
1829JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1830
b582ab87
PH
1831TK/03 Fix log output including CR from clamd.
1832
41a13e0a
PH
1833PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1834 exist provoked a memory error which could cause a segfault.
1835
f625cc5a
PH
1836PH/15 Installed PCRE 6.2
1837
1838PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1839
21f7af35
PH
1840PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1841 of the problem. Specifically, suggested +O2 rather than +O1 for the
1842 HP-UX compiler.
1843
31480e42
PH
1844PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1845
2d280592
PH
1846PH/20 If a delivery was routed to a non-standard port by means of an SRV
1847 record, the port was not correctly logged when the outgoing_port log
1848 selector was set (it logged the transort's default port).
1849
7cd1141b
PH
1850PH/21 Added support for host-specific ports to manualroute, queryprogram,
1851 fallback_hosts, and "hosts" in the smtp transport.
1852
1853PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1854 host errors such as "Connection refused".
1855
750af86e
PH
1856PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1857 authentication with radiusclient 0.4.9:
1858
1859 - Error returned from rc_read_config was caught wrongly
1860 - Username/password not passed on to radius server due to wrong length.
1861
1862 The presumption is that some radiusclient API changes for 4.51/PH/17
1863 were not taken care of correctly. The code is still untested by me (my
1864 Linux distribution still has 0.3.2 of radiusclient), but it was
1865 contributed by a Radius user.
1866
1867PH/24 When doing a callout, the value of $domain wasn't set correctly when
1868 expanding the "port" option of the smtp transport.
1869
4304270b
TK
1870TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1871 while reading a MIME header. Thanks to Tom Hughes for a patch.
1872
750af86e
PH
1873PH/24 Include config.h inside local_scan.h so that configuration settings are
1874 available.
1875
64ffc24f
PH
1876PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1877 that in an ACL for RCPT (for example), you can examine exactly what was
1878 received.
1879
5dd9625b
PH
1880PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1881 commands, but it was not correctly comparing the address with the actual
1882 client host address. Thus, it would show the EHLO address in Received:
1883 header lines when this was not necessary.
1884
5591031b
PH
1885PH/27 Added the % operator to ${eval:}.
1886
ba18e66a
PH
1887PH/28 Exim tries to create and chdir to its spool directory when it starts;
1888 it should be ignoring failures (because with -C, for example, it has lost
1889 privilege). It wasn't ignoring creation failures other than "already
1890 exists".
1891
9cec981f
PH
1892PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1893 -bV or -d is used.
1894
aa2b5c79
PH
1895PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1896 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1897 too many continuations, the temporary file was not being removed, and the
1898 return code was incorrect.
aa2b5c79 1899
48a53b7f
PH
1900PH/31 Missing "BOOL" in function definition in filtertest.c.
1901
1c59d63b
PH
1902PH/32 Applied Sieve patches from the maintainer.
1903
671012da
TK
1904TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1905
1509d3a8
PH
1906PH/33 Added "verify = not_blind".
1907
1908PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1909 Local/Makefile (with some defaults set). These are used in built scripts
1910 such as exicyclog, but they have never been used in the exim_install
1911 script (though there are many overriding facilities there). I have
1912 arranged that the exim_install script now takes note of these two
1913 settings.
1914
1915PH/35 Installed configuration files for Dragonfly.
1916
2fe1a124
PH
1917PH/36 When a locally submitted message by a trusted user did not contain a
1918 From: header, and the sender address was obtained from -f or from an SMTP
1919 MAIL command, and the trusted user did not use -F to supply a sender
1920 name, $originator_name was incorrectly used when constructing a From:
1921 header. Furthermore, $originator_name was used for submission mode
1922 messages from external hosts without From: headers in a similar way,
1923 which is clearly wrong.
1924
8800895a
PH
1925PH/37 Added control=suppress_local_fixups.
1926
ccfdb010
PH
1927PH/38 When log_selector = +received_sender was set, and the addition of the
1928 sender made the log line's construction buffer exactly full, or one byte
1929 less than full, an overflow happened when the terminating "\n" was
1930 subsequently added.
1931
1130bfb0
PH
1932PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1933 when the result of a list match is failure because a DNS lookup failed.
1934
ebcb507f
PH
1935PH/40 RM_COMMAND is now used in the building process.
1936
c35e155c
PH
1937PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1938 the "build-* directories that it finds.
1939
95d1f782
PH
1940PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1941 address in a domain literal was a prefix of an interface address.
1942
fd6de02e
PH
1943PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1944 when verifying a sender address, unless rewrite_headers is false.
1945
58de37c5
PH
1946PH/44 Wrote a long comment about why errors_to addresses are verified as
1947 recipients, not senders.
1948
261cf466
TF
1949TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1950 the ratelimit ACL was added.
1951
3ee512ff
PH
1952PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1953
e08c430f
PH
1954PH/46 Added extra information about PostgreSQL errors to the error string.
1955
bef5a11f
PH
1956PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1957 avoiding the need to install special zones in a real server. This is
1958 backwards compatible; if it can't find the fake resolver, it drops back.
1959 Thus, both old and new test suites can be run.
1960
7546de58
TF
1961TF/02 Added util/ratelimit.pl
1962
e5d5a95f
TF
1963TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1964 clock is set back in time.
1965
2e88a017
TF
1966TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1967 Candler <B.Candler@pobox.com>.
1968
a5f65aa4
TF
1969TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1970 OK for addresses that are the result of redirections.
1971
e7726cbf
PH
1972PH/48 A number of further additions for the benefit of the new test suite,
1973 including a fake gethostbyname() that interfaces to the fake DNS resolver
1974 (see PH/47 above).
1975
a7fdad5b
TF
1976TF/06 The fix for widen_domains has also been applied to qualify_single and
1977 search_parents which are the other dnslookup options that can cause
1978 header rewrites.
1979
6af56900
PH
1980PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1981 type ("H").
1982
0925ede6
PH
1983PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1984
66afa403
TF
1985TF/07 Exim produced the error message "an SRV record indicated no SMTP
1986 service" if it encountered an MX record with an empty target hostname.
1987 The message is now "an MX or SRV record indicated no SMTP service".
1988
0154e85a
TF
1989TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1990 if the DNS of the sending site is misconfigured. This is quite a
1991 common situation. This change restores the behaviour of treating a
1992 helo verification defer as a failure.
1993
16f12c76
PH
1994PH/51 If self=fail was set on a router, the bounce message did not include the
1995 actual error message.
1996
bbe902f0 1997
e5a9dba6
PH
1998Exim version 4.52
1999-----------------
2000
2001TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2002
22c3b60b
PH
2003PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2004 command itself ended in error, the underlying message about the transport
2005 filter timeout was being overwritten with the pipe command error. Now the
2006 underlying error message should be appended to the second error message.
2007
06a9b4b5
PH
2008TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2009
c1ac6996
PH
2010PH/02 Reduce the amount of output that "make" produces by default. Full output
2011 can still be requested.
2012
9c7a242c
PH
2013PH/03 The warning log line about a condition test deferring for a "warn" verb
2014 was being output only once per connection, rather than after each
2015 occurrence (because it was using the same function as for successful
2016 "warn" verbs). This seems wrong, so I have changed it.
2017
87ba3f5f
PH
2018TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2019 it should not have, which might have caused a crash in the right
2020 circumstances, but probably never did.
2021
2022PH/04 Installed a modified version of Tony Finch's patch to make submission
2023 mode fix the return path as well as the Sender: header line, and to
2024 add a /name= option so that you can make the user's friendly name appear
2025 in the header line.
2026
29aba418
TF
2027TF/03 Added the control = fakedefer ACL modifier.
2028
fe0dab11
TF
2029TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2030 Mark Lowes for thorough testing.
870f6ba8 2031
11d337a4
TK
2032TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2033
2034TK/03 Merged latest SRS patch from Miles Wilton.
2035
415c8f3b
PH
2036PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2037 with the definition in sysexits.h (which is #included earlier).
2038 Fortunately, Exim does not actually use EX_OK. The code used to try to
2039 preserve the sysexits.h value, by assumimg that macro definitions were
2040 scanned for macro replacements. I have been disabused of this notion,
2041 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2042
958541e9
PH
2043PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2044 in the smtp transport. When a block could not be written in a single
2045 write() function, the timeout was being re-applied to each part-write.
2046 This seems wrong - if the receiver was accepting one byte at a time it
2047 would take for ever. The timeout is now adjusted when this happens. It
2048 doesn't have to be particularly precise.
2049
c206415f
TK
2050TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2051 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2052
2a4be8f9
PH
2053PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2054 without a domain if the check to <postmaster@domain> fails.
2055
1cba11c5
SC
2056SC/01 Eximstats: added -xls and the ability to specify output files
2057 (patch written by Frank Heydlauf).
2058
2059SC/02 Eximstats: use FileHandles for outputing results.
2060
2061SC/03 Eximstats: allow any combination of xls, txt, and html output.
2062
2063SC/04 Eximstats: fixed display of large numbers with -nvr option
2064
2065SC/05 Eximstats: fixed merging of reports with empty tables.
2066
2067SC/06 Eximstats: added the -include_original_destination flag
2068
2069SC/07 Eximstats: removed tabs and trailing whitespace.
2070
1005d00e
TK
2071TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2072
2073TK/06 MBOX spool code: Add real "From " MBOX separator line
2074 so the .eml file is really in mbox format (even though
2075 most programs do not really care). Patch from Alex Miller.
2076
2077TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2078 The latter is generated from $received_to and is only set if the
2079 message has one envelope recipient. SA can use these headers,
2080 obviously out-of-the-box. Patch from Alex Miller.
2081
9b4768fa
PH
2082PH/08 The ${def test on a variable was returning false if the variable's
2083 value was "0", contrary to what the specification has always said!
2084 The result should be true unless the variable is empty.
2085
2086PH/09 The syntax error of a character other than { following "${if
2087 def:variable_name" (after optional whitespace) was not being diagnosed.
2088 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2089 accidental colon was present, for example, could give incorrect results.
2090
0d7eb84a
PH
2091PH/10 Tidied the code in a number of places where the st_size field of a stat()
2092 result is used (not including appendfile, where other changes are about
2093 to be made).
2094
2095PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2096 This involved changing a lot of size variables from int to off_t. It
2097 should work with maildirs and everything.
2098
40727bee
TK
2099TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2100 spamd dying while we are connected to it.
2101
554d2369
TF
2102TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2103 <jgh@wizmail.org>
2104
1f922db1
PH
2105PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2106 function for BDB 4.3.
2107
ef213c3b
PH
2108PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2109
8ac170f3
PH
2110PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2111 the sources for PCRE have been re-arranged and more files are now
2112 involved.
2113
b1c749bb
PH
2114PH/15 The code I had for printing potentially long long variables in PH/11
2115 above was not the best (it lost precision). The length of off_t variables
2116 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2117 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2118 to be "long long int" or "long int". This is needed for the internal
2119 formatting function string_vformat().
b1c749bb 2120
4aac9b49
PH
2121PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2122 the configuration file to be ":syslog", then the script "guesses" where
2123 the logs files are, rather than using the compiled in default. In our
2124 case the guess is not the same as the compiled default, so the script
2125 suddenly stopped working when I started to use syslog. The patch checks
2126 to see if log_file_path is "". If so, it attempts to read it from exim
2127 with no configuration file to get the compiled in version, before it
2128 falls back to the previous guessing code."
2129
294520c8
TK
2130TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2131 implementing BATV in an Exim configuration. See NewStuff for the gory
2132 details.
2133
5bd022fe
PH
2134PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2135 Makefile that are specific to HP-UX.
2136
90e9ce59
PH
2137PH/18 If the "use_postmaster" option was set for a recipient callout together
2138 with the "random" option, the postmaster address was used as the MAIL
2139 FROM address for the random test, but not for the subsequent recipient
2140 test. It is now used for both.
2141
5ea81592
PH
2142PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2143 patch removes a few documentation additions to RFC 3028, because the
2144 latest draft now contains them. It adds the new en;ascii-case comparator
2145 and a new error check for 8bit text in MIME parts. Comparator and
2146 require names are now matched exactly. I enabled the subaddress
2147 extension, but it is not well tested yet (read: it works for me)."
2148
c6c2dc1d
PH
2149PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2150 rework some of the code of TK/09 above to avoid the hardwired use of
2151 "%lld" and "long long". Replaced the call to snprintf() with a call to
2152 string_vformat().
2153
fffffe4c
PH
2154PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2155 records point to non-existent hosts", "retry timeout exceeded", and
2156 "retry time not reached for any host after a long failure period".
ca02eafb 2157
9a26b6b2
PH
2158PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2159 experimental DomainKeys support:
2160
2161 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2162 (2) On an error such as an illegally used "control", the wrong name for
2163 the control was given.
2164
2165 These problems did NOT occur unless DomainKeys support was compiled.
2166
4aee0225
PH
2167PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2168
32d668a5
PH
2169PH/24 Added ${if match_ip condition.
2170
8187c3f3
PH
2171PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2172 databases so that it will be absolutely obvious if a crash occurs in the
2173 DB library. This is a regular occurrence (often caused by mis-matched
2174 db.h files).
2175
ff790e47 2176PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2177 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2178 picked up on a user's system that detects such things. There doesn't seem
2179 to be a gcc warning option for this - only an attribute that has to be
2180 put on the function's prototype. It seems that in Fedora Core 4 they have
2181 set this on a number of new functions. No doubt there will be more in due
2182 course.
ff790e47 2183
5417f6d1
PH
2184PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2185 specify a transport. However, if an address that was verified by such a
2186 router was the subject of a callout, Exim crashed because it tried to
2187 read the rcpt_include_affixes from the non-existent transport. Now it
2188 just assumes that the setting of that option is false. This bug was
2189 introduced by 4.51/PH/31.
2190
59cf8544
PH
2191PH/28 Changed -d+all to exclude +memory, because that information is very
2192 rarely of interest, but it makes the output a lot bigger. People tend to
2193 do -d+all out of habit.
2194
e7ad8a65
PH
2195PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2196 code in os-type was giving problems when libc.so lives in lib64, like on
2197 x86_64 Fedora Core.
2198
ade42478
PH
2199PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2200 aren't the modern standard, and it seems that some systems' include files
2201 don't always have them. Exim was already checking for some of the newer
2202 ones like T_AAAA, and defining it itself. I've added checks for all the
2203 record types that Exim uses.
2204
182ad5cf
PH
2205PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2206 not automatically generating a new one, as it is supposed to. This
2207 prevented TLS from working. If the file did exist, but contained invalid
2208 data, a new version was generated, as expected. It was only the case of a
2209 non-existent file that was broken.
2210
b0d9fc80
TK
2211TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2212 with a change in libdomainkeys > 0.64.
2213
2214TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2215 from DNS. If the selector record carries the flag, it now has
2216 precedence over the domain-wide flag.
2217
2218TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2219
47c7a64a
PH
2220PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2221 the use of a port name that isn't defined in /etc/services) occurred, the
2222 message was deferred as in a normal delivery, and thus remained on the
2223 spool, instead of being failed because of the mua_wrapper setting. This
2224 is now fixed, and I tidied up some of the mua_wrapper messages at the
2225 same time.
2226
a388bce4
SC
2227SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2228 the messages in a hash of arrays rather than using individual hashes.
2229 This is a bit cleaner and results in dramatic memory savings, albeit
2230 at a slight CPU cost.
2231
2232SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2233 as requested by Marc Sherman.
2234
2235SC/10 Eximstats: added histograms for user specified patterns as requested
2236 by Marc Sherman.
2237
0793e4ed
SC
2238SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2239
c58b88df
PH
2240PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2241 fopen() in the content-scanning modules that did not already have it.
2242
e7ad8a65 2243
7982096b
PH
2244Exim version 4.51
2245-----------------
2246
1a46a8c5
PH
2247TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2248 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2249
2f079f46 2250TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2251
2252TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2253
2254PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2255 to test Sieve filters that use "vacation".
2256
2257PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2258 that changes the way the GnuTLS parameters are stored in the cache file.
2259 The new format can be generated externally. For backward compatibility,
2260 if the data in the cache doesn't make sense, Exim assumes it has read an
2261 old-format file, and it generates new data and writes a new file. This
2262 means that you can't go back to an older release without removing the
2263 file.
2264
2265PH/03 A redirect router that has both "unseen" and "one_time" set does not
2266 work if there are any delivery delays because "one_time" forces the
2267 parent to be marked "delivered", so its unseen clone is never tried
2268 again. For this reason, Exim now forbids the simultaneous setting of
2269 these two options.
2270
2271PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2272 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2273 entry if you want to know the details. The fix, however, neglected to
2274 consider the case when local delivery batching is involved. The test for
2275 "previously delivered" was not happening when checking to see if an
2276 address could be batched with a previous (undelivered) one; under
2277 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2278 address.
1a46a8c5
PH
2279
2280PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2281 in its include files, and this causes problems building Exim.
2282
2283PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2284 header_syntax) but Exim was just ignoring anything given after a slash.
2285 In particular, this caused confusion with an attempt to use "verify =
2286 reverse_host_lookup/defer_ok". An error is now given when options are
2287 supplied for verify items that do not have them. (Maybe reverse_host_
2288 lookup should have a defer_ok option, but that's a different point.)
2289
2290PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2291 defined by RFC 821) to 2048, because there were problems with some AUTH
2292 commands, and RFC 1869 says the size should be increased for extended
2293 SMTP commands that take arguments.
2294
2295PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2296 Finch).
2297
2298PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2299 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2300
49c2d5ea
PH
2301PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2302 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2303 whatever). Otherwise the password may appear in the log. Following change
2304 PH/42 below, there is no longer a chance of it appearing in a bounce
2305 message.
49c2d5ea 2306
bf759a8b
PH
2307PH/11 Installed exipick version 20050225.0 from John Jetmore.
2308
83364d30
PH
2309PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2310 of its addresses was ever tried. (Bugzilla bug #2.)
2311
7999bbd7
PH
2312PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2313 the result incorrectly in the debug output. (It correctly added a newline
2314 to what was transported.)
2315
7dbf77c9
PH
2316TF/01 Added $received_time.
2317
74e0617f
PH
2318PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2319 commented out examples of how to interface to a virus scanner and to
2320 SpamAssassin. Also added commented examples of av_scanner and
2321 spamd_address settings.
2322
2f079f46
PH
2323PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2324 and controls are allowed in which ACLs. There were a couple of minor
2325 errors. Some of the entries in the conditions table (which is a table of
2326 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2327 negation of where the condition IS allowed.
2328
8c841523
PH
2329PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2330
7766a4f0
PH
2331PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2332 header file does not have a version number, so I've had to invent a new
2333 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2334 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2335 radiusclient), but it was contributed by a Radius user.
2336
8b417f2c
PH
2337PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2338 files or directories, for OpenSSL.
2339
901f42cb
PH
2340PH/19 When an Exim process that is running as root has to create an Exim log
2341 file, it does so in a subprocess that runs as exim:exim so as to get the
2342 ownership right at creation (otherwise, other Exim processes might see
2343 the file with the wrong ownership). There was no test for failure of this
2344 fork() call, which would lead to the process getting stuck as it waited
2345 for a non-existent subprocess. Forks do occasionally fail when resources
2346 run out. I reviewed all the other calls to fork(); they all seem to check
2347 for failure.
2348
f9b9210e
PH
2349PH/20 When checking for unexpected SMTP input at connect time (before writing
2350 the banner), Exim was not dealing correctly with a non-positive return
2351 from the read() function. If the client had disconnected by this time,
2352 the result was a log entry for a synchronization error with an empty
2353 string after "input=" when read() returned zero. If read() returned -1
2354 (an event I could not check), uninitialized data bytes were printed.
2355 There were reports of junk text (parts of files, etc) appearing after
2356 "input=".
2357
54cdb463
PH
2358PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2359
cf00dad6
PH
2360PH/22 Added support for macro redefinition, and (re)definition in between
2361 driver and ACL definitions.
2362
acb1b346
PH
2363PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2364 forgetting to use the resulting value; it was using the unexpanded value.
2365
c5ddb310
PH
2366PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2367 hadn't been configured. The fix is from Juergen Kreileder, who
2368 understands it better than I do:
2369
2370 "Here's what I see happening with three configured cyrus_sasl
2371 authenticators configured (plain, login, cram-md5):
2372
2373 On startup auth_cyrus_sasl_init() gets called for each of these.
2374 This means three calls to sasl_listmech() without a specified mech_list.
2375 => SASL tests which mechs of all available mechs actually work
2376 => three warnings about OTP not working
2377 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2378
2379 With the patch, sasl_listmech() also gets called three times. But now
2380 SASL's mech_list option is set to the server_mech specified in the the
2381 authenticator. Or in other words, the answer from sasl_listmech()
2382 gets limited to just the mech you're testing for (which is different
2383 for each call.)
2384 => the return list contains just 'plain' or 'login', 'cram-md5' or
2385 nothing depending on the value of ob->server_mech.
2386
2387 I've just tested the patch: Authentication still works fine,
2388 unavailable mechs specified in the exim configuration are still
2389 caught, and the auth.log warnings about OTP are gone."
2390
31619da6
PH
2391PH/25 When debugging is enabled, the contents of the command line are added
2392 to the debugging output, even when log_selector=+arguments is not
2393 specified.
2394
bebaf0fc
PH
2395PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2396 answer is "GNU", and only if the return is "GNU/something" is the answer
2397 "Linux".
2398
475fe28a
PH
2399PH/27 $acl_verify_message is now set immediately after the failure of a
2400 verification in an ACL, and so is available in subsequent modifiers. In
2401 particular, the message can be preserved by coding like this:
2402
2403 warn !verify = sender
2404 set acl_m0 = $acl_verify_message
2405
2406 Previously, $acl_verify_message was set only while expanding "message"
2407 and "log_message" when a very denied access.
2408
7e8bec7a
PH
2409PH/28 Modified OS/os.c-Linux with
2410
2411 -#ifndef OS_LOAD_AVERAGE
2412 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2413
2414 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2415 nomenclature these days.)
2416
e4a89c47
PH
2417PH/29 Installed patch from the Sieve maintainer that adds the options
2418 sieve_useraddress and sieve_subaddress to the redirect router.
2419
5ca2a9a1
PH
2420PH/30 In these circumstances:
2421 . Two addresses routed to the same list of hosts;
2422 . First host does not offer TLS;
2423 . First host accepts first address;
2424 . First host gives temporary error to second address;
2425 . Second host offers TLS and a TLS session is established;
2426 . Second host accepts second address.
2427 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2428 and peerdn, if requested) that were in fact used only for the second
2429 address.
7e8bec7a 2430
c688b954
PH
2431PH/31 When doing a callout as part of verifying an address, Exim was not paying
2432 attention to any local part prefix or suffix that was matched by the
2433 router that accepted the address. It now behaves in the same way as it
2434 does for delivery: the affixes are removed from the local part unless
2435 rcpt_include_affixes is set on the transport.
2436
fed77020
PH
2437PH/32 Add the sender address, as F=<...>, to the log line when logging a
2438 timeout during the DATA phase of an incoming message.
2439
7fe1560f
PH
2440PH/33 Sieve envelope tests were broken for match types other than :is. I have
2441 applied a patch sanctioned by the Sieve maintainer.
c688b954 2442
ebb6e6d5
PH
2443PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2444 the uid or gid is negative. A case of a negative gid caused this to be
2445 noticed. The fix allows for either to be negative.
2446
9c4e8f60
PH
2447PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2448 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2449 overlooked.
2450
2451PH/36 The change PH/12 above was broken. Fixed it.
2452
d7174846
PH
2453PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2454 the grounds that routing the same address twice would always produce the
2455 same answer. This might have been true once, but it is certainly no
2456 longer true now. Routing a child address may depend on the previous
2457 routing that produced that child. Some complicated redirection strategies
2458 went wrong when messages had multiple recipients, and made Exim's
2459 behaviour dependent on the order in which the addresses were given.
2460
2461 I have moved the duplicate checking until after the routing is complete.
2462 Exim scans the addresses that are assigned to local and remote
2463 transports, and removes any duplicates. This means that more work will be
2464 done, as duplicates will always all be routed, but duplicates are
2465 presumably rare, so I don't expect this is of any significance.
2466
2467 For deliveries to pipes, files, and autoreplies, the duplicate checking
2468 still happens during the routing process, since they are not going to be
2469 routed further.
2470
cfe75fc3
PH
2471PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2472 It corrects a timeout issue with spamd. This is Ian's comment: "The
2473 background is that sometimes spamd either never reads data from a
2474 connection it has accepted, or it never writes response data. The exiscan
2475 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2476 blindly assumes that writes won't block so it may never time out."
2477
be22d70e
PH
2478PH/39 Allow G after quota size as well as K and M.
2479
0612b098
PH
2480PH/40 The value set for $authenticated_id in an authenticator may not contain
2481 binary zeroes or newlines because the value is written to log lines and
2482 to spool files. There was no check on this. Now the value is run through
2483 the string_printing() function so that such characters are converted to
2484 printable escape sequences.
2485
2e0c1448
PH
2486PH/41 $message_linecount is a new variable that contains the total number of
2487 lines in the message. Compare $body_linecount, which is the count for the
2488 body only.
2489
447d236c
PH
2490PH/42 Exim no longer gives details of delivery errors for specific addresses in
2491 bounce and delay warning messages, except in certain special cases, which
2492 are as follows:
2493
2494 (a) An SMTP error message from a remote host;
2495 (b) A message specified in a :fail: redirection;
2496 (c) A message specified in a "fail" command in a system filter;
2497 (d) A message specified in a FAIL return from the queryprogram router;
2498 (e) A message specified by the cannot_route_message router option.
2499
2500 In these cases only, Exim does include the error details in bounce and
2501 warning messages. There are also a few cases where bland messages such
2502 as "unrouteable address" or "local delivery error" are given.
2503
d20976dc
PH
2504PH/43 $value is now also set for the "else" part of a ${run expansion.
2505
f656d135
PH
2506PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2507 being worked on, but at least Exim now implements the latest version to
2508 play with."
2509
2e2a30b4
PH
2510PH/45 In a pipe transport, although a timeout while waiting for the pipe
2511 process to complete was treated as a delivery failure, a timeout while
2512 writing the message to the pipe was logged, but erroneously treated as a
2513 successful delivery. Such timeouts include transport filter timeouts. For
2514 consistency with the overall process timeout, these timeouts are now
2515 treated as errors, giving rise to delivery failures by default. However,
2516 there is now a new Boolean option for the pipe transport called
2517 timeout_defer, which, if set TRUE, converts the failures into defers for
2518 both kinds of timeout. A transport filter timeout is now identified in
2519 the log output.
2520
9176e9f0
PH
2521PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2522 systems where "make" and "gmake" are different, calling "gmake" at top
2523 level broke things. I've arranged for the value of $(MAKE) to be passed
2524 from the Makefile to this script so that it can call the same version of
2525 "make".
2526
7982096b 2527
bbe902f0
PH
2528A note about Exim versions 4.44 and 4.50
2529----------------------------------------
2530
2531Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2532changes of various kinds. As a consequence, a big documentation update was
2533needed. This delayed the release for rather longer than seemed good, especially
2534in the light of a couple of (minor) security issues. Therefore, the changes
2535that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2536release. So 4.44 and 4.50 are in effect two different branches that both start
2537from 4.43.
2538
2539I have left the 4.50 change log unchanged; it contains all the changes since
25404.43. The change log for 4.44 is below; many of its items are identical to
2541those for 4.50. This seems to be the most sensible way to preserve the
2542historical information.
2543
2544
f7b63901 2545Exim version 4.50
495ae4b0
PH
2546-----------------
2547
5fe762f6
PH
2548 1. Minor wording change to the doc/README.SIEVE file.
2549
139059f6 2550 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2551 computation of the current number of files was incorrect.
495ae4b0 2552
7086e875
PH
2553 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2554 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2555 place.
2556
35af9f61
PH
2557 4. Give more explanation in the error message when the command for a transport
2558 filter fails to execute.
2559
b668c215
PH
2560 5. There are several places where Exim runs a non-Exim command in a
2561 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2562 was being done only for the command run by the queryprogram router. It is
2563 now done for all such subprocesses. The other cases are: ${run, transport
2564 filters, and the commands run by the lmtp and pipe transports.
2565
a494b1e1
PH
2566 6. Added CONFIGURE_GROUP build-time option.
2567
2568 7. Some older OS have a limit of 256 on the maximum number of file
2569 descriptors. Exim was using setrlimit() to set 1000 as a large value
2570 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2571 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2572
c5fcb476
PH
2573 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2574 was an oversight, and furthermore, ever since the addition of extra
2575 controls (e.g. 4.43/32), the checks on when to allow different forms of
2576 "control" were broken. There should now be diagnostics for all cases when a
2577 control that does not make sense is encountered.
2578
69358f02
PH
2579 9. Added the /retain_sender option to "control=submission".
2580
5be20824
PH
258110. $recipients is now available in the predata ACL (oversight).
2582
eb2c0248
PH
258311. Tidy the search cache before the fork to do a delivery from a message
2584 received from the command line. Otherwise the child will trigger a lookup
2585 failure and thereby defer the delivery if it tries to use (for example) a
2586 cached ldap connection that the parent has called unbind on.
2587
2a3eea10
PH
258812. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2589 of $address_data from the recipient verification was clobbered by the
2590 sender verification.
2591
259213. The value of address_data from a sender verification is now available in
2593 $sender_address_data in subsequent conditions in the ACL statement.
2594
23c7ff99
PH
259514. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2596
4deaf07d
PH
259715. Added a new option "connect=<time>" to callout options, to set a different
2598 connection timeout.
2599
926e1192
PH
260016. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2601 was its contents. (It was OK if the option was not defined at all.)
2602
650edc6f
PH
260317. A "Completed" log line is now written for messages that are removed from
2604 the spool by the -Mrm option.
2605
2c7db3f5
PH
260618. New variables $sender_verify_failure and $recipient_verify_failure contain
2607 information about exactly what failed.
2608
3d235903
PH
260919. Added -dd to debug only the daemon process.
2610
7c7ad977
PH
261120. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2612 handles timeouts, both on the server side and network timeouts. Renamed the
2613 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2614
981756db
PH
261521. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2616 It is now set to "smtps".
2617
d4eb88df
PH
261822. $host_address is now set to the target address during the checking of
2619 ignore_target_hosts.
2620
262123. When checking ignore_target_hosts for an ipliteral router, no host name was
2622 being passed; this would have caused $sender_host_name to have been used if
2623 matching the list had actually called for a host name (not very likely,
2624 since this list is usually IP addresses). A host name is now passed as
2625 "[x.x.x.x]".
2626
7d468ab8
PH
262724. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2628 code that specifies a non-restarting handler (typically sigaction() in
2629 modern systems) in an attempt to fix a rare and obscure crash bug.
2630
263125. Narrowed the window for a race in the daemon that could cause it to ignore
2632 SIGCHLD signals. This is not a major problem, because they are used only to
2633 wake it up if nothing else does.
2634
62c0818f
PH
263526. A malformed maildirsize file could cause Exim to calculate negative values
2636 for the mailbox size or file count. Odd effects could occur as a result.
2637 The maildirsize information is now recalculated if the size or filecount
2638 end up negative.
2639
26034054
PH
264027. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2641 support for a long time. Removed HAVE_SYS_VFS_H.
2642
af66f652
PH
264328. Installed the latest version of exipick from John Jetmore.
2644
90af77f4
PH
264529. In an address list, if the pattern was not a regular expression, an empty
2646 subject address (from a bounce message) matched only if the pattern was an
2647 empty string. Non-empty patterns were not even tested. This was the wrong
2648 because it is perfectly reasonable to use an empty address as part of a
2649 database query. An empty address is now tested by patterns that are
2650 lookups. However, all the other forms of pattern expect the subject to
2651 contain a local part and a domain, and therefore, for them, an empty
2652 address still always fails if the pattern is not itself empty.
2653
d8ef3577
PH
265430. Exim went into a mad DNS loop when attempting to do a callout where the
2655 host was specified on an smtp transport, and looking it up yielded more
2656 than one IP address.
2657
5cb8cbc6
PH
265831. Re-factored the code for checking spool and log partition space into a
2659 function that finds that data and another that does the check. The former
2660 is then used to implement four new variables: $spool_space, $log_space,
2661 $spool_inodes, and $log_inodes.
2662
14702f5b
PH
266332. The RFC2047 encoding function was originally intended for short strings
2664 such as real names; it was not keeping to the 75-character limit for
2665 encoded words that the RFC imposes. It now respects the limit, and
2666 generates multiple encoded words if necessary. To be on the safe side, I
2667 have increased the buffer size for the ${rfc2047: expansion operator from
2668 1024 to 2048 bytes.
2669
063b1e99
PH
267033. It is now permitted to omit both strings after an "if" condition; if the
2671 condition is true, the result is "true". As before, when the second string
2672 is omitted, a false condition yields an empty string. This makes it less
2673 cumbersome to write custom ACL and router conditions.
2674
652e1b65
PH
267534. Failure to deliver a bounce message always caused it to be frozen, even if
2676 there was an errors_to setting on the router. The errors_to setting is now
2677 respected.
2678
6f0c9a4f
PH
267935. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2680 canonical form (fully expanded) before being placed in
2681 $sender_host_address.
2682
33397d19
PH
268336. The table in the code that translates DNS record types into text (T_A to
2684 "A" for instance) was missing entries for NS and CNAME. It is just possible
2685 that this could have caused confusion if both these types were looked up
2686 for the same domain, because the text type is used as part of Exim's
2687 per-process caching. But the chance of anyone hitting this buglet seems
2688 very small.
2689
7bb56e1f
PH
269037. The dnsdb lookup has been extended in a number of ways.
2691
2692 (1) There is a new type, "zns", which walks up the domain tree until it
2693 finds some nameserver records. It should be used with care.
2694
ea3bc19b
PH
2695 (2) There is a new type, "mxh", which is like "mx" except that it returns
2696 just the host names, not the priorities.
2697
2698 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2699 looked up. The behaviour when one of the lookups defers can be
2700 controlled by a keyword.
7bb56e1f 2701
ea3bc19b 2702 (4) It is now possible to specify the separator character for use when
7bb56e1f 2703 multiple records are returned.
33397d19 2704
0bcb2a0e
PH
270538. The dnslists ACL condition has been extended: it is now possible to supply
2706 a list of IP addresses and/or domains to be looked up in a particular DNS
2707 domain.
2708
2ac0e484
PH
270939. Added log_selector=+queue_time_overall.
2710
4e1fde53
PH
271140. When running the queue in the test harness, wait just a tad after forking a
2712 delivery process, to get repeatability of debugging output.
2713
de365ded
PH
271441. Include certificate and key file names in error message when GnuTLS fails
2715 to set them up, because the GnuTLS error message doesn't include the name
2716 of the failing file when there is a problem reading it.
2717
f05da2e8
PH
271842. Allow both -bf and -bF in the same test run.
2719
d6453af2
PH
272043. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2721
f7b63901
PH
272244. The "Exiscan patch" is now merged into the mainline Exim source.
2723
272445. Sometimes the final signoff response after QUIT could fail to get
2725 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2726 < 0 before doing a fflush(). This bug looks as though it goes back to the
2727 introduction of TLS in release 3.20, but "sometimes" must have been rare
2728 because the tests only now provoked it.
2729
a444213a
PH
273046. Reset the locale to "C" after calling embedded Perl, in case it was changed
2731 (this can affect the format of dates).
2732
0ec020ea
PH
273347. exim_tidydb, when checking for the continued existence of a message for
2734 which it has found a message-specific retry record, was not finding
2735 messages that were in split spool directories. Consequently, it was
2736 deleting retry records that should have stayed in existence.
2737
b1206957
PH
273848. Steve fixed some bugs in eximstats.
2739
274049. The SPA authentication driver was not abandoning authentication and moving
2741 on to the next authenticator when an expansion was forced to fail,
2742 contradicting the general specification for all authenticators. Instead it
2743 was generating a temporary error. It now behaves as specified.
2744
26dd5a95
PH
274550. The default ordering of permitted cipher suites for GnuTLS was pessimal
2746 (the order specifies the preference for clients). The order is now AES256,
2747 AES128, 3DES, ARCFOUR128.
2748
343b2385
PH
274951. Small patch to Sieve code - explicitly set From: when generating an
2750 autoreply.
2751
1c5466b9
PH
275252. Exim crashed if a remote delivery caused a very long error message to be
2753 recorded - for instance if somebody sent an entire SpamAssassin report back
2754 as a large number of 550 error lines. This bug was coincidentally fixed by
2755 increasing the size of one of Exim's internal buffers (big_buffer) that
2756 happened as part of the Exiscan merge. However, to be on the safe side, I
2757 have made the code more robust (and fixed the comments that describe what
2758 is going on).
2759
55ee9ee3
PH
276053. Now that there can be additional text after "Completed" in log lines (if
2761 the queue_time_overall log selector is set), a one-byte patch to exigrep
2762 was needed to allow it to recognize "Completed" as not the last thing in
2763 the line.
2764
d38f8232
PH
276554. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2766 patch that reportedly fixes this has been added. I am not expert enough to
2767 create a test for it. This is what the patch creator wrote:
2768
2769 "I found a little strange behaviour of ldap code when working with
2770 Windows 2003 AD Domain, where users was placed in more than one
2771 Organization Units. When I tried to give exim partial DN, the exit code
2772 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2773 But simultaneously result of request was absolutely normal ldap result,
2774 so I produce this patch..."
2775
3295e65b
PH
2776 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2777 REFERENCE, so I have modified the code to exclude the patch when that macro
2778 is not defined.
2779
7102e136
PH
278055. Some experimental protocols are using DNS PTR records for new purposes. The
2781 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2782 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2783 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2784 CAN-2005-0021
7102e136 2785
3ca0ba97
PH
278656. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2787
c2bcbe20
PH
278857. Double the size of the debug message buffer (to 2048) so that more of very
2789 long debug lines gets shown.
2790
18ce445d
PH
279158. The exicyclog utility now does better if the number of log files to keep
2792 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2793
1f5b4c3d
PH
279459. Two changes related to the smtp_active_hostname option:
2795
2796 (1) $smtp_active_hostname is now available as a variable.
2797 (2) The default for smtp_banner uses $smtp_active_hostname instead
2798 of $primary_hostname.
2799
b975ba52
PH
280060. The host_aton() function is supposed to be passed a string that is known
2801 to be a valid IP address. However, in the case of IPv6 addresses, it was
2802 not checking this. This is a hostage to fortune. Exim now panics and dies
2803 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2804 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2805 components; fortuitously, this particular loophole had already been fixed
2806 by change 4.50/55 above.
2807
2808 If there are any other similar loopholes, the new check in host_aton()
2809 itself should stop them being exploited. The report I received stated that
2810 data on the command line could provoke the exploit when Exim was running as
2811 exim, but did not say which command line option was involved. All I could
2812 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2813 running as the user.
ea3a6f44 2814 CAN-2005-0021
85b87bc2
PH
2815
281661. There was a buffer overflow vulnerability in the SPA authentication code
2817 (which came originally from the Samba project). I have added a test to the
2818 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2819 CAN-2005-0022
b975ba52 2820
17ffcae7
PH
282162. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2822 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2823
d95f9fdb
PH
282463. The daemon start-up calls getloadavg() while still root for those OS that
2825 need the first call to be done as root, but it missed one case: when
2826 deliver_queue_load_max is set with deliver_drop_privilege. This is
2827 necessary for the benefit of the queue runner, because there is no re-exec
2828 when deliver_drop_privilege is set.
2829
86b8287f
PH
283064. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2831 This has been fixed.
2832
60dc5e56
PH
283365. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2834 was in use, was not putting the data itself into the right store pool;
2835 consequently, it could be overwritten for a subsequent message in the same
2836 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2837 the caching.)
2838
533244af
PH
283966. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2840
a5a28604
PH
284167. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2842 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2843 the function were treating the return as a boolean value, which happened to
2844 work because 0=false and not-0=true, but is not correct code.
2845
7e634d24
PH
284668. The host_aton() function was not handling scoped IPv6 addresses (those
2847 with, for example, "%eth0" on the end) correctly.
2848
3e11c26b
PH
284969. Fixed some compiler warnings in acl.c for the bitmaps specified with
2850 negated items (that is, ~something) in unsigned ints. Some compilers
2851 apparently mutter when there is no cast.
2852
6729cf78
PH
285370. If an address verification called from an ACL failed, and did not produce a
2854 user-specific message (i.e. there was only a "system" message), nothing was
2855 put in $acl_verify_message. In this situation, it now puts the system
2856 message there.
2857
00f00ca5
PH
285871. Change 4.23/11 added synchronization checking at the start of an SMTP
2859 session; change 4.31/43 added the unwanted input to the log line - except
2860 that it did not do this in the start of session case. It now does.
2861
c9bdd01c
PH
286272. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2863 This is wrong and can cause the other end to generate a synchronization
2864 error if it is another Exim or anything else that does the synchronization
2865 check. A QUIT command is no longer sent after a timeout.
2866
d43194df
PH
286773. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2868 during host lookups.
2869
fe5b5d0b
PH
287074. The defer_ok option of callout verification was not working if it was used
2871 when verifying addresses in header lines, that is, for this case:
2872
2873 verify = header_sender/callout=defer_ok
2874
76a2d7ba
PH
287575. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2876 those file descriptors could be used for SMTP connections. If anything
2877 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2878 could be sent to the SMTP client, causing chaos. The daemon now opens
2879 stdin, stdout, and stderr to /dev/null when it puts itself into the
2880 background.
2881
288276. Arrange for output from Perl's "warn" command to be written to Exim's main
2883 log by default. The user can override this with suitable Perl magic.
2884
04f7d5b9
PH
288577. The use of log_message on a "discard" ACL verb, which is supposed to add to
2886 the log message when discard triggers, was not working for the DATA ACL or
2887 for the non-SMTP ACL.
2888
bc60667e
PH
288978. Error message wording change in sieve.c.
2890
bb6e88ff
PH
289179. If smtp_accept_max_per_host was set, the number of connections could be
2892 restricted to fewer than expected, because the daemon was trying to set up
2893 a new connection before checking whether the processes handling previous
2894 connections had finished. The check for completed processes is now done
2895 earlier. On busy systems, this bug wouldn't be noticed because something
2896 else would have woken the daemon, and it would have reaped the completed
2897 process earlier.
2898
1e70f85b
PH
289980. If a message was submitted locally by a user whose login name contained one
2900 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2901 It caused a spool format error. I have fixed the spool reading code. A
2902 related problem was that the "from" clause in the Received: line became
2903 illegal because of the space(s). It is now covered by ${quote_local_part.
2904
290581. Included the latest eximstats from Steve (adds average sizes to HTML Top
2906 tables).
2907
4e01f9d6
PH
290882. Updated OS/Makefile-AIX as per message from Mike Meredith.
2909
1ee1cef2
PH
291083. Patch from Sieve maintainer to fix unterminated string problem in
2911 "vacation" handling.
2912
6e2b4ccc
PH
291384. Some minor changes to the Linux configuration files to help with other
2914 OS variants using glibc.
2915
8e669ac1
PH
291685. One more patch for Sieve to update vacation handling to latest spec.
2917
495ae4b0 2918
bbe902f0
PH
2919----------------------------------------------------
2920See the note above about the 4.44 and 4.50 releases.
2921----------------------------------------------------
2922
2923
2924Exim version 4.44
2925-----------------
2926
2927 1. Change 4.43/35 introduced a bug that caused file counts to be
2928 incorrectly computed when quota_filecount was set in an appendfile
2929 transport
2930
2931 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2932 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2933 place.
2934
2935 3. Give more explanation in the error message when the command for a transport
2936 filter fails to execute.
2937
2938 4. There are several places where Exim runs a non-Exim command in a
2939 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2940 was being done only for the command run by the queryprogram router. It is
2941 now done for all such subprocesses. The other cases are: ${run, transport
2942 filters, and the commands run by the lmtp and pipe transports.
2943
2944 5. Some older OS have a limit of 256 on the maximum number of file
2945 descriptors. Exim was using setrlimit() to set 1000 as a large value
2946 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2947 systems. I've change it so that if it can't get 1000, it tries for 256.
2948
2949 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2950 was an oversight, and furthermore, ever since the addition of extra
2951 controls (e.g. 4.43/32), the checks on when to allow different forms of
2952 "control" were broken. There should now be diagnostics for all cases when a
2953 control that does not make sense is encountered.
2954
2955 7. $recipients is now available in the predata ACL (oversight).
2956
2957 8. Tidy the search cache before the fork to do a delivery from a message
2958 received from the command line. Otherwise the child will trigger a lookup
2959 failure and thereby defer the delivery if it tries to use (for example) a
2960 cached ldap connection that the parent has called unbind on.
2961
2962 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2963 of $address_data from the recipient verification was clobbered by the
2964 sender verification.
2965
296610. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2967 was its contents. (It was OK if the option was not defined at all.)
2968
296911. A "Completed" log line is now written for messages that are removed from
2970 the spool by the -Mrm option.
2971
297212. $host_address is now set to the target address during the checking of
2973 ignore_target_hosts.
2974
297513. When checking ignore_target_hosts for an ipliteral router, no host name was
2976 being passed; this would have caused $sender_host_name to have been used if
2977 matching the list had actually called for a host name (not very likely,
2978 since this list is usually IP addresses). A host name is now passed as
2979 "[x.x.x.x]".
2980
298114. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2982 code that specifies a non-restarting handler (typically sigaction() in
2983 modern systems) in an attempt to fix a rare and obscure crash bug.
2984
298515. Narrowed the window for a race in the daemon that could cause it to ignore
2986 SIGCHLD signals. This is not a major problem, because they are used only to
2987 wake it up if nothing else does.
2988
298916. A malformed maildirsize file could cause Exim to calculate negative values
2990 for the mailbox size or file count. Odd effects could occur as a result.
2991 The maildirsize information is now recalculated if the size or filecount
2992 end up negative.
2993
299417. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2995 support for a long time. Removed HAVE_SYS_VFS_H.
2996
ea3a6f44 299718. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2998
299919. Allow an empty sender to be matched against a lookup in an address list.
3000 Previously the only cases considered were a regular expression, or an
3001 empty pattern.
3002
300320. Exim went into a mad DNS lookup loop when doing a callout where the
3004 host was specified on the transport, if the DNS lookup yielded more than
3005 one IP address.
3006
ea3a6f44
NM
300721. The RFC2047 encoding function was originally intended for short strings
3008 such as real names; it was not keeping to the 75-character limit for
3009 encoded words that the RFC imposes. It now respects the limit, and
3010 generates multiple encoded words if necessary. To be on the safe side, I
3011 have increased the buffer size for the ${rfc2047: expansion operator from
3012 1024 to 2048 bytes.
bbe902f0 3013
ea3a6f44
NM
301422. Failure to deliver a bounce message always caused it to be frozen, even if
3015 there was an errors_to setting on the router. The errors_to setting is now
3016 respected.
bbe902f0
PH
3017
301823. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3019 canonical form (fully expanded) before being placed in
3020 $sender_host_address.
3021
302224. Updated eximstats to version 1.33
3023
ea3a6f44
NM
302425. Include certificate and key file names in error message when GnuTLS fails
3025 to set them up, because the GnuTLS error message doesn't include the name
3026 of the failing file when there is a problem reading it.
bbe902f0
PH
3027
302826. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3029 As per change 25.
bbe902f0 3030
ea3a6f44
NM
303127. Reset the locale to "C" after calling embedded Perl, in case it was changed
3032 (this can affect the format of dates).
bbe902f0 3033
ea3a6f44
NM
303428. exim_tidydb, when checking for the continued existence of a message for
3035 which it has found a message-specific retry record, was not finding
3036 messages that were in split spool directories. Consequently, it was
3037 deleting retry records that should have stayed in existence.
bbe902f0
PH
3038
303929. eximstats updated to version 1.35
3040 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3041 1.35 - bugfix such that pie charts by volume are generated correctly
3042
ea3a6f44
NM
304330. The SPA authentication driver was not abandoning authentication and moving
3044 on to the next authenticator when an expansion was forced to fail,
3045 contradicting the general specification for all authenticators. Instead it
3046 was generating a temporary error. It now behaves as specified.
bbe902f0 3047
ea3a6f44
NM
304831. The default ordering of permitted cipher suites for GnuTLS was pessimal
3049 (the order specifies the preference for clients). The order is now AES256,
3050 AES128, 3DES, ARCFOUR128.
bbe902f0 3051
ea3a6f44
NM
305231. Small patch to Sieve code - explicitly set From: when generating an
3053 autoreply.
bbe902f0 3054
ea3a6f44
NM
305532. Exim crashed if a remote delivery caused a very long error message to be
3056 recorded - for instance if somebody sent an entire SpamAssassin report back
3057 as a large number of 550 error lines. This bug was coincidentally fixed by
3058 increasing the size of one of Exim's internal buffers (big_buffer) that
3059 happened as part of the Exiscan merge. However, to be on the safe side, I
3060 have made the code more robust (and fixed the comments that describe what
3061 is going on).
bbe902f0 3062
ea3a6f44
NM
306333. Some experimental protocols are using DNS PTR records for new purposes. The
3064 keys for these records are domain names, not reversed IP addresses. The
3065 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3066 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3067 CAN-2005-0021
3068
ea3a6f44
NM
306934. The host_aton() function is supposed to be passed a string that is known
3070 to be a valid IP address. However, in the case of IPv6 addresses, it was
3071 not checking this. This is a hostage to fortune. Exim now panics and dies
3072 if the condition is not met. A case was found where this could be provoked
3073 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3074 components; fortuitously, this particular loophole had already been fixed
3075 by change 4.50/55 or 4.44/33 above.
3076
3077 If there are any other similar loopholes, the new check in host_aton()
3078 itself should stop them being exploited. The report I received stated that
3079 data on the command line could provoke the exploit when Exim was running as
3080 exim, but did not say which command line option was involved. All I could
3081 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3082 running as the user.
bbe902f0
PH
3083 CAN-2005-0021
3084
ea3a6f44
NM
308535. There was a buffer overflow vulnerability in the SPA authentication code
3086 (which came originally from the Samba project). I have added a test to the
3087 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3088 CAN-2005-0022
3089
ea3a6f44
NM
309036. The daemon start-up calls getloadavg() while still root for those OS that
3091 need the first call to be done as root, but it missed one case: when
3092 deliver_queue_load_max is set with deliver_drop_privilege. This is
3093 necessary for the benefit of the queue runner, because there is no re-exec
3094 when deliver_drop_privilege is set.
bbe902f0 3095
ea3a6f44
NM
309637. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3097 was in use, was not putting the data itself into the right store pool;
3098 consequently, it could be overwritten for a subsequent message in the same
3099 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3100 the caching.)
bbe902f0 3101
ea3a6f44
NM
310238. Sometimes the final signoff response after QUIT could fail to get
3103 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3104 < 0 before doing a fflush(). This bug looks as though it goes back to the
3105 introduction of TLS in release 3.20, but "sometimes" must have been rare
3106 because the tests only now provoked it.
bbe902f0
PH
3107
3108
495ae4b0
PH
3109Exim version 4.43
3110-----------------
3111
3112 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3113 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3114 Now it returns an integer. A number of calls were still expecting a T/F
3115 return. Fortuitously, in all cases, the tests worked in OK situations,
3116 which is the norm. However, things would have gone wrong on any write
3117 failures on the smtp file descriptor. This function is used when sending
3118 messages over SMTP and also when doing verify callouts.
3119
3120 2. When Exim is called to do synchronous delivery of a locally submitted
3121 message (the -odf or -odi options), it no longer closes stderr before doing
3122 the delivery.
3123
3124 3. Implemented the mua_wrapper option.
3125
3126 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3127
3128 5. Implemented the functions header_remove(), header_testname(),
3129 header_add_at_position(), and receive_remove_recipient(), and exported them
3130 to local_scan().
3131
3132 6. If an ACL "warn" statement specified the addition of headers, Exim already
3133 inserted X-ACL-Warn: at the start if there was no header name. However, it
3134 was not making this test for the second and subsequent header lines if
3135 there were newlines in the string. This meant that an invalid header could
3136 be inserted if Exim was badly configured.
3137
3138 7. Allow an ACL "warn" statement to add header lines at the start or after all
3139 the Received: headers, as well as at the end.
3140
3141 8. Added the rcpt_4xx retry error code.
3142
3143 9. Added postmaster_mailfrom=xxx to callout verification option.
3144
314510. Added mailfrom=xxxx to the callout verification option, for verify=
3146 header_sender only.
3147
314811. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3149 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3150
315112. Inserted some casts to stop certain compilers warning when using pointer
3152 differences as field lengths or precisions in printf-type calls (mostly
3153 affecting debugging statements).
3154
315513. Added optional readline() support for -be (dynamically loaded).
3156
315714. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3158 same clock tick as a message's arrival, so that its received time was the
3159 same as the "first fail" time on the retry record, and that message
3160 remained on the queue past the ultimate address timeout, every queue runner
3161 would try a delivery (because it was past the ultimate address timeout) but
3162 after another failure, the ultimate address timeout, which should have then
3163 bounced the address, did not kick in. This was a "< instead of <=" error;
3164 in most cases the first failure would have been in the next clock tick
3165 after the received time, and all would be well.
3166
316715. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3168 being recognized when the domain list was tested by the match_domain
3169 condition in an expansion string.
3170
317116. Added the ${str2b64: operator.
3172
317317. Exim was always calling setrlimit() to set a large limit for the number of
3174 processes, without checking whether the existing limit was already
3175 adequate. (It did check for the limit on file descriptors.) Furthermore,
3176 errors from getrlimit() and setrlimit() were being ignored. Now they are
3177 logged to the main and panic logs, but Exim does carry on, to try to do its
3178 job under whatever limits there are.
3179
318018. Imported PCRE 5.0.
3181
318219. Trivial typo in log message " temporarily refused connection" (the leading
3183 space).
3184
318520. If the log selector return_path_on_delivery was set and an address was
3186 redirected to /dev/null, the delivery process crashed because it assumed
3187 that a return path would always be set for a "successful" delivery. In this
3188 case, the whole delivery is bypassed as an optimization, and therefore no
3189 return path is set.
3190
319121. Internal re-arrangement: the function for sending a challenge and reading
3192 a response while authentication was assuming a zero-terminated challenge
3193 string. It's now changed to take a pointer and a length, to allow for
3194 binary data in such strings.
3195
319622. Added the cyrus_sasl authenticator (code supplied by MBM).
3197
319823. Exim was not respecting finduser_retries when seeking the login of the
3199 uid under which it was called; it was always trying 10 times. (The default
3200 setting of finduser_retries is zero.) Also, it was sleeping after the final
3201 failure, which is pointless.
3202
320324. Implemented tls_on_connect_ports.
3204
320525. Implemented acl_smtp_predata.
3206
320726. If the domain in control=submission is set empty, Exim assumes that the
3208 authenticated id is a complete email address when it generates From: or
3209 Sender: header lines.
3210
321127. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3212 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3213 chown and chgrp in /bin and hostname in /usr/bin.
3214
321528. Exim was keeping the "process log" file open after each use, just as it
3216 does for the main log. This opens the possibility of it remaining open for
3217 long periods when the USR1 signal hits a daemon. Occasional processlog
3218 errors were reported, that could have been caused by this. Anyway, it seems
3219 much more sensible not to leave this file open at all, so that is what now
3220 happens.
3221
322229. The long-running daemon process does not normally write to the log once it
3223 has entered its main loop, and it closes the log before doing so. This is
3224 so that log files can straightforwardly be renamed and moved. However,
3225 there are a couple of unusual error situations where the daemon does write
3226 log entries, and I had neglected to close the log afterwards.
3227
322830. The text of an SMTP error response that was received during a remote
3229 delivery was being truncated at 512 bytes. This is too short for some of
3230 the long messages that one sometimes sees. I've increased the limit to
3231 1024.
3232
323331. It is now possible to make retry rules that apply only when a message has a
3234 specific sender, in particular, an empty sender.
3235
323632. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3237 it possible to be selective about when SMTP synchronization is enforced.
3238
323933. Added "control = caseful_local_part" and "control = "caselower_local_part".
3240
324132. Implemented hosts_connection_nolog.
3242
324333. Added an ACL for QUIT.
3244
324534. Setting "delay_warning=" to disable warnings was not working; it gave a
3246 syntax error.
3247
324835. Added mailbox_size and mailbox_filecount to appendfile.
3249
325036. Added control = no_multiline_responses to ACLs.
3251
325237. There was a bug in the logic of the code that waits for the clock to tick
3253 in the case where the clock went backwards by a substantial amount such
3254 that the microsecond fraction of "now" was more than the microsecond
3255 fraction of "then" (but the whole seconds number was less).
3256
325738. Added support for the libradius Radius client library this is found on
3258 FreeBSD (previously only the radiusclient library was supported).
3259
3260
3261Exim version 4.42
3262-----------------
3263
3264 1. When certain lookups returned multiple values in the form name=value, the
3265 quoting of the values was not always being done properly. Specifically:
3266 (a) If the value started with a double quote, but contained no whitespace,
3267 it was not quoted.
3268 (b) If the value contained whitespace other than a space character (i.e.
3269 tabs or newlines or carriage returns) it was not quoted.
3270 This fix has been applied to the mysql and pgsql lookups by writing a
3271 separate quoting function and calling it from the lookup code. The fix
3272 should probably also be applied to nisplus, ibase and oracle lookups, but
3273 since I cannot test any of those, I have not disturbed their existing code.
3274
3275 2. A hit in the callout cache for a specific address caused a log line with no
3276 reason for rejecting RCPT. Now it says "Previous (cached) callout
3277 verification failure".
3278
3279 3. There was an off-by-one bug in the queryprogram router. An over-long
3280 return line was truncated at 256 instead of 255 characters, thereby
3281 overflowing its buffer with the terminating zero. As well as fixing this, I
3282 have increased the buffer size to 1024 (and made a note to document this).
3283
3284 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3285 when Exim is waiting for an SMTP response from a remote server, Exim
3286 restarts its select() call on the socket, thereby resetting its timeout.
3287 This is not a problem when such interrupts are rare. Somebody set up a cron
3288 job to run exiwhat every 2 minutes, which is less than the normal select()
3289 timeout (5 or 10 minutes). This meant that the select() timeout never
3290 kicked in because it was always reset. I have fixed this by comparing the
3291 time when an interrupt arrives with the time at the start of the first call
3292 to select(). If more time than the timeout has elapsed, the interrupt is
3293 treated as a timeout.
3294
3295 5. Some internal re-factoring in preparation for the addition of Sieve
3296 extensions (by MH). In particular, the "personal" test is moved to a
3297 separate function, and given an option for scanning Cc: and Bcc: (which is
3298 not set for Exim filters).
3299
3300 6. When Exim created an email address using the login of the caller as the
3301 local part (e.g. when creating a From: or Sender: header line), it was not
3302 quoting the local part when it contained special characters such as @.
3303
3304 7. Installed new OpenBSD configuration files.
3305
3306 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3307 try to make them clearer.
3308
3309 9. Callout options, other than the timeout value, were being ignored when
3310 verifying sender addresses in header lines. For example, when using
3311
3312 verify = header_sender/callout=no_cache
3313
3314 the cache was (incorrectly) being used.
3315
331610. Added a missing instance of ${EXE} to the exim_install script; this affects
3317 only the Cygwin environment.
3318
331911. When return_path_on_delivery was set as a log selector, if different remote
3320 addresses in the same message used different return paths and parallel
3321 remote delivery occurred, the wrong values would sometimes be logged.
3322 (Whenever a remote delivery process finished, the return path value from
3323 the most recently started remote delivery process was logged.)
3324
332512. RFC 3848 specifies standard names for the "with" phrase in Received: header
3326 lines when AUTH and/or TLS are in use. This is the "received protocol"
3327 field. Exim used to use "asmtp" for authenticated SMTP, without any
3328 indication (in the protocol name) for TLS use. Now it follows the RFC and
3329 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3330 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3331 names appear in log lines as well as in Received: header lines.
3332
333313. Installed MH's patches for Sieve to add the "copy" and "vacation"
3334 extensions, and comparison tests, and to fix some bugs.
3335
333614. Changes to the "personal" filter test:
3337
3338 (1) The test was buggy in that it was just doing the equivalent of
3339 "contains" tests on header lines. For example, if a user's address was
3340 anne@some.where, the "personal" test would incorrectly be true for
3341
3342 To: susanne@some.where
3343
3344 This test is now done by extracting each address from the header in turn,
3345 and checking the entire address. Other tests that are part of "personal"
3346 are now done using regular expressions (for example, to check local parts
3347 of addresses in From: header lines).
3348
3349 (2) The list of non-personal local parts in From: addresses has been
3350 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3351 taken from the Sieve specification recommendations.
3352
3353 (3) If the message contains any header line starting with "List-" it is
3354 treated as non-personal.
3355
3356 (4) The test for "circular" in the Subject: header line has been removed
3357 because it now seems ill-conceived.
3358
335915. Minor typos in src/EDITME comments corrected.
3360
336116. Installed latest exipick from John Jetmore.
3362
336317. If headers_add on a router specified a text string that was too long for
3364 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3365 of string_sprintf() is now avoided.
3366
336718. $message_body_size was not set (it was always zero) when running the DATA
3368 ACL and the local_scan() function.
3369
337019. For the "mail" command in an Exim filter, no default was being set for
3371 the once_repeat time, causing a random time value to be used if "once" was
3372 specified. (If the value happened to be <= 0, no repeat happened.) The
3373 default is now 0s, meaning "never repeat". The "vacation" command was OK
3374 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3375 (I found it when inspecting the code).
3376
337720. There is now an overall timeout for performing a callout verification. It
3378 defaults to 4 times the callout timeout, which applies to individual SMTP
3379 commands during the callout. The overall timeout applies when there is more
3380 than one host that can be tried. The timeout is checked before trying the
3381 next host. This prevents very long delays if there are a large number of
3382 hosts and all are timing out (e.g. when the network connections are timing
3383 out). The value of the overall timeout can be changed by specifying an
3384 additional sub-option for "callout", called "maxwait". For example:
3385
3386 verify = sender/callout=5s,maxwait=20s
3387
338821. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3389 to the end before writing, but this should make it even safer).
3390
339122. Exim was forgetting that it had advertised PIPELINING for the second and
3392 subsequent messages on an SMTP connection. It was also not resetting its
3393 memory on STARTTLS and an internal HELO.
3394
339523. When Exim logs an SMTP synchronization error within a session, it now
3396 records whether PIPELINING has been advertised or not.
3397
339824. Added 3 instances of "(long int)" casts to time_t variables that were being
3399 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3400 rather than long int.
3401
340225. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3403
340426. Added the never_mail option to autoreply.
3405
3406
3407Exim version 4.41
3408-----------------
3409
3410 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3411 crash if the getsockname() call failed; this can happen if a connection is
3412 closed very soon after it is established. The problem was simply in the
3413 order in which certain operations were done, causing Exim to try to write
3414 to the SMTP stream before it had set up the file descriptor. The bug has
3415 been fixed by making things happen in the correct order.
3416
3417
3418Exim version 4.40
3419-----------------
3420
3421 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3422 before the connection was closed, thus losing the rejection response.
3423
3424 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3425 some early Solaris releases, but causes trouble in current releases where
3426 socklen_t is defined.
3427
3428 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3429 always exist.
3430
3431 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3432 configured.
3433
3434 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3435 that releasing the top of it at the end releases what was used for sub-
3436 expansions (unless the block got too big). However, discard this block if
3437 the first thing is a variable or header, so that we can use its block when
3438 it is dynamic (useful for very large $message_headers, for example).
3439
3440 6. Lookups now cache *every* query, not just the most recent. A new, separate
3441 store pool is used for this. It can be recovered when all lookup caches are
3442 flushed. Lookups now release memory at the end of their result strings.
3443 This has involved some general refactoring of the lookup sources.
3444
3445 7. Some code has been added to the store_xxx() functions to reduce the amount
3446 of flapping under certain conditions.
3447
3448 8. log_incoming_interface used to affect only the <= reception log lines. Now
3449 it causes the local interface and port to be added to several more SMTP log
3450 lines, for example "SMTP connection from", and rejection lines.
3451
3452 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3453
345410. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.