Spacing change on Makefile directives (syntax fix). Fixes: #961
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
bb576ff7 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.603 2010/03/05 16:05:02 nm4 Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
465e92cf
JJ
6Exim version 4.72
7-----------------
8
9JJ/01 installed exipick 20100104.1, adding $max_received_linelength, $data_path, and $header_path variables; fixed documentation bugs and typos
10
edae0343
JJ
11JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow exipick to access non-standard spools, including the "frozen" queue (Finput)
12
9bd3e22c
NM
13NM/01 Bugzilla 965: Support mysql stored procedures.
14 Patch from Alain Williams
15
bb576ff7
NM
16NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
17
9bd3e22c 18
7c6d71af
NM
19Exim version 4.71
20-----------------
21
22TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body
23
f013fb92
NM
24NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
25
0eb8eedd
NM
26NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
27
663ee6d9
NM
28NM/03 Bugzilla 847: Enable DNSDB lookup by default.
29
177ebd9b
NM
30NM/04 Bugzilla 915: Flag broken perl installation during build.
31
7c6d71af 32
210f147e
NM
33Exim version 4.70
34-----------------
35
cdd3bb85 36TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 37 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
38
39TK/02 Write list of recipients to X-Envelope-Sender header when building
40 the mbox-format spool file for content scanning (suggested by Jakob
41 Hirsch)
42
43TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
44 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 45 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
46
47TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
48 by Mark Daniel Reidel <mr@df.eu>.
49
210f147e
NM
50NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
51 When building exim an external PCRE library is now needed -
52 PCRE is a system library on the majority of modern systems.
53 See entry on PCRE_LIBS in EDITME file.
54
deafd5b3
NM
55NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
56 conversation. Added nologin parameter to request.
57 Patch contributed by Kirill Miazine
58
089793a4
TF
59TF/01 Do not log submission mode rewrites if they do not change the address.
60
5f16ca82
TF
61TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
62
dae9d94e
NM
63NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
64 log files in place. Contributed by Roberto Lima
65
3f0da4d0
NM
66NM/04 Bugzilla 667: close socket used by dovecot authenticator
67
06864c44
TF
68TF/03 Bugzilla 615: When checking the local_parts router precondition
69 after a local_part_suffix or local_part_prefix option, Exim now
70 does not use the address's named list lookup cache, since this
71 contains cached lookups for the whole local part.
72
65a7d8c3
NM
73NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
74 Robert Millan. Documentation is in experimental-spec.txt
75
23510047 76TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 77
7d8eec3a 78NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000
5f28a6e8 79
7d8eec3a 80NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
81 Patch provided by Jan Srzednicki
82
89dec7b6
TF
83TF/05 Leading white space used to be stripped from $spam_report which
84 wrecked the formatting. Now it is preserved.
5f28a6e8 85
a99de90c
TF
86TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
87 that they are available at delivery time.
88
e2803e40
TF
89TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
90
7199e1ee
TF
91TF/08 TLS error reporting now respects the incoming_interface and
92 incoming_port log selectors.
93
e276e04b
TF
94TF/09 Produce a more useful error message if an SMTP transport's hosts
95 setting expands to an empty string.
96
ce552449
NM
97NM/06 Bugzilla 744: EXPN did not work under TLS.
98 Patch provided by Phil Pennock
99
e765a0f1
NM
100NM/07 Bugzilla 769: Extraneous comma in usage fprintf
101 Patch provided by Richard Godbee
102
4f054c63 103NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 104 acl_smtp_notquit, added index entry.
4f054c63 105
24c929a2
NM
106NM/09 Bugzilla 787: Potential buffer overflow in string_format
107 Patch provided by Eugene Bujak
108
cf73943b
NM
109NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
110 Patch provided by Maxim Dounin
111
b52bc06e
NM
112NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
113 Patch provided by Phil Pennock
114
447de4b0
NM
115NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
116
4c69d561
NM
117NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
118 Patch provided by Brad "anomie" Jorsch
119
d5c39246 120NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
NM
121 Patch provided by Dean Brooks
122
0b23848a
TK
123TK/05 Add native DKIM support (does not depend on external libraries).
124
8f3414a1 125NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
NM
126 Patch provided by Graeme Fowler
127
fb6f955d
NM
128NM/16 Bugzilla 851: Documentation example syntax fix.
129
130NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 131
dbb0bf41
NM
132NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
133
f3766eb5
NM
134NM/19 Bugzilla 745: TLS version reporting
135 Patch provided by Phil Pennock
136
137NM/20 Bugzilla 167: bool: condition support
138 Patch provided by Phil Pennock
36f12725 139
e6060e2c
NM
140NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
141 Patch provided by Phil Pennock
142
7496b417 143NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
NM
144 Patch provided by Brad "anomie" Jorsch
145
d5c13d66
NM
146NM/23 Bugzilla 687: Fix misparses in eximstats
147 Patch provided by Heiko Schlittermann
148
b2335c0b
NM
149NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid
150 Patch provided by Heiko Schlittermann
151
f4cd9433 152NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
1da77999 153 plus update to original patch.
f4cd9433
NM
154
155NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 156
8dc71ab3
NM
157NM/27 Bugzilla 802: Improvements to local interface IP addr detection
158 Patch provided by David Brownlee
159
400eda43
NM
160NM/28 Bugzilla 807: Improvements to LMTP delivery logging
161
162NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 163
07af267e
NM
164NM/30 Bugzilla 888: TLS documentation bugfixes
165
0cc09577 166NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 167
17792b53
NM
168NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
169 Unlike the original bugzilla I have changed all shell scripts in src tree
170
52383f8f
NM
171NM/33 Bugzilla 898: Transport filter timeout fix
172 Patch by Todd Rinaldo
173
5ca6d115
NM
174NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches
175 Patch by Serge Demonchaux
176
baee9eee
NM
177NM/35 Bugzilla 39: Base64 decode bug fixes
178 Patch by Jakob Hirsch
179
e93a964c
NM
180NM/36 Bugzilla 909: Correct connect() call in dcc code
181
9bf3d68f
NM
182NM/37 Bugzilla 910: Correct issue with relaxed/simple handling
183
184NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed
96535b98 185
30339e0f
NM
186NM/39 Bugzilla 911: Fixed MakeLinks build script
187
deafd5b3 188
47db1125
NM
189Exim version 4.69
190-----------------
191
4b3504d0
TK
192TK/01 Add preliminary DKIM support. Currently requires a forked version of
193 ALT-N's libdkim that I have put here:
194 http://duncanthrax.net/exim-experimental/
195
196 Note to Michael Haardt: I had to rename some vars in sieve.c. They
197 were called 'true' and it seems that C99 defines that as a reserved
198 keyword to be used with 'bool' variable types. That means you could
199 not include C99-style headers which use bools without triggering
200 build errors in sieve.c.
201
81ea09ca
NM
202NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
203 as mailq or other aliases. Changed the --help handling significantly
204 to do whats expected. exim_usage() emits usage/help information.
205
f13cddcb
SC
206SC/01 Added the -bylocaldomain option to eximstats.
207
8ad076b2
NM
208NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
209
a843aaa6
NM
210NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
211
47db1125
NM
212NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
213
214
eb4c0de6
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215Exim version 4.68
216-----------------
217
218PH/01 Another patch from the Sieve maintainer.
219
6a3bceb1
PH
220PH/02 When an IPv6 address is converted to a string for single-key lookup
221 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
222 dots are used instead of colons so that keys in lsearch files need not
223 contain colons. This was done some time before quoting was made available
224 in lsearch files. However, iplsearch files do require colons in IPv6 keys
225 (notated using the quote facility) so as to distinguish them from IPv4
226 keys. This meant that lookups for IP addresses in host lists did not work
227 for iplsearch lookups.
228
229 This has been fixed by arranging for IPv6 addresses to be expressed with
230 colons if the lookup type is iplsearch. This is not incompatible, because
231 previously such lookups could never work.
232
233 The situation is now rather anomolous, since one *can* have colons in
234 ordinary lsearch keys. However, making the change in all cases is
235 incompatible and would probably break a number of configurations.
236
2e30fa9d
TK
237TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
238 version.
239
0806a9c5
MH
240MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
241 conversion specification without a maximum field width, thereby enabling
242 a rogue spamd server to cause a buffer overflow. While nobody in their
243 right mind would setup Exim to query an untrusted spamd server, an
244 attacker that gains access to a server running spamd could potentially
245 exploit this vulnerability to run arbitrary code as the Exim user.
246
ae276964
TK
247TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
248 $primary_hostname instead of what libspf2 thinks the hosts name is.
249
0f2cbd1b
MH
250MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
251 a directory entry by the name of the lookup key. Previously, if a
252 symlink pointed to a non-existing file or a file in a directory that
253 Exim lacked permissions to read, a lookup for a key matching that
254 symlink would fail. Now it is enough that a matching directory entry
255 exists, symlink or not. (Bugzilla 503.)
256
2b85bce7
PH
257PH/03 The body_linecount and body_zerocount variables are now exported in the
258 local_scan API.
259
93655c46
PH
260PH/04 Added the $dnslist_matched variable.
261
6c512171
PH
262PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
263 This means they are set thereafter only if the connection becomes
264 encrypted.
265
266PH/06 Added the client_condition to authenticators so that some can be skipped
267 by clients under certain conditions.
268
aa6dc513
PH
269PH/07 The error message for a badly-placed control=no_multiline_responses left
270 "_responses" off the end of the name.
271
a96603a0
PH
272PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
273
8f240103
PH
274PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
275 (without spaces) instead of just copying the configuration text.
276
277PH/10 Added the /noupdate option to the ratelimit ACL condition.
278
d677b2f2
PH
279PH/11 Added $max_received_linelength.
280
d52120f2
PH
281PH/12 Added +ignore_defer and +include_defer to host lists.
282
64f2600a
PH
283PH/13 Installed PCRE version 7.2. This needed some changes because of the new
284 way in which PCRE > 7.0 is built.
285
8669f003
PH
286PH/14 Implemented queue_only_load_latch.
287
a4dc33a8
PH
288PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
289 MAIL command. The effect was to mangle the value on 64-bit systems.
290
d6a60c0f
PH
291PH/16 Another patch from the Sieve maintainer.
292
8f128379
PH
293PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
294
8932dffe
PH
295PH/18 If a system quota error occurred while trying to create the file for
296 a maildir delivery, the message "Mailbox is full" was not appended to the
297 bounce if the delivery eventually timed out. Change 4.67/27 below applied
298 only to a quota excession during the actual writing of the file.
d6a60c0f 299
ddea74fa 300PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
301 characters?) which causes problems in log lines. The DN values are now
302 passed through string_printing() before being added to log lines.
303
ddea74fa 304PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
305 and InterBase are left for another time.)
306
ddea74fa
PH
307PH/21 Added message_body_newlines option.
308
ce9f225c
PH
309PH/22 Guard against possible overflow in moan_check_errorcopy().
310
19897d52
PH
311PH/23 POSIX allows open() to be a macro; guard against that.
312
bc64a74d
PH
313PH/24 If the recipient of an error message contained an @ in the local part
314 (suitably quoted, of course), incorrect values were put in $domain and
315 $local_part during the evaluation of errors_copy.
316
eb4c0de6 317
b4ed4da0
PH
318Exim version 4.67
319-----------------
320
22ad45c9
MH
321MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
322 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
323 Jan Srzednicki.
324
b4ed4da0
PH
325PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
326 issue a MAIL command.
327
431b7361
PH
328PH/02 In an ACL statement such as
329
330 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
331
332 if a client was not listed at all, or was listed with a value other than
333 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
334 the condition was not true (as it should be), so access was not denied.
335 The bug was that the ! inversion was incorrectly passed on to the second
336 item. This has been fixed.
337
338PH/03 Added additional dnslists conditions == and =& which are different from
339 = and & when the dns lookup returns more than one IP address.
340
83da1223
PH
341PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
342 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
343
54fc8428
PH
344PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
345 FSYNC, which compiles an option called disable_fsync that allows for
346 bypassing fsync(). The documentation is heavily laced with warnings.
347
34c5e8dd
SC
348SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
349
bbe15da8
PH
350PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
351 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
352 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
353 including adding "make clean"; (3) Added -fPIC when compiling the test
354 dynamically loaded module, to get rid of a warning.
355
0e8a9471
MH
356MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
357 message fails, move_frozen_messages = true and ignore_bounce_errors_after
358 = 0s. The bug is otherwise harmless.
359
f0872424
PH
360PH/07 There was a bug in the dovecot authenticator such that the value of
361 $auth1 could be overwritten, and so not correctly preserved, after a
362 successful authentication. This usually meant that the value preserved by
363 the server_setid option was incorrect.
364
b01dd148
PH
365PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
366
6bf342e1
PH
367PH/09 Installed PCRE release 7.0.
368
273f34d0
PH
369PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
370 run for batched SMTP input. It is now run at the start of every message
371 in the batch. While fixing this I discovered that the process information
372 (output by running exiwhat) was not always getting set for -bs and -bS
373 input. This is fixed, and it now also says "batched" for BSMTP.
374
cf8b11a5
PH
375PH/11 Added control=no_pipelining.
376
41c7c167
PH
377PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
378 patch, slightly modified), and move the expansion of helo_data till after
379 the connection is made in the smtp transport (so it can use these
380 values).
381
9c57cbc0
PH
382PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
383
f3f065bb
PH
384PH/14 Added log_selector = +pid.
385
047bdd8c
PH
386PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
387
0ce9abe6
PH
388PH/16 Add ${if forany and ${if forall.
389
0e22dfd1
PH
390PH/17 Added dsn_from option to vary the From: line in DSNs.
391
4c590bd1
PH
392PH/18 Flush SMTP output before performing a callout, unless control =
393 no_callout_flush is set.
394
09945f1e
PH
395PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
396 was true (the default) a successful delivery failed to delete the retry
397 item, thus causing premature timeout of the address. The bug is now
398 fixed.
399
c51b8e75
PH
400PH/20 Added hosts_avoid_pipelining to the smtp transport.
401
e28326d8
PH
402PH/21 Long custom messages for fakedefer and fakereject are now split up
403 into multiline reponses in the same way that messages for "deny" and
404 other ACL rejections are.
405
75b1493f
PH
406PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
407 with slight modification.
408
7c5214ec
PH
409PH/23 Applied sieve patches from the maintainer "tracking the latest notify
410 draft, changing the syntax and factoring some duplicate code".
411
4311097e
PH
412PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
413 for deliveries of the second and subsequent messages over the same SMTP
414 connection.
415
29f89cad
PH
416PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
417 ${reduce, with only minor "tidies".
418
5e687460
SC
419SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
420
c3611384
PH
421PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
422 expansion side effects.
423
5a11a7b4
PH
424PH/27 When a message times out after an over-quota error from an Exim-imposed
425 quota, the bounce message says "mailbox is full". This message was not
426 being given when it was a system quota that was exceeded. It now should
427 be the same.
428
0e20aff9
MH
429MH/03 Made $recipients available in local_scan(). local_scan() already has
430 better access to the recipient list through recipients_list[], but
431 $recipients can be useful in postmaster-provided expansion strings.
432
ca86f471
PH
433PH/28 The $smtp_command and $smtp_command_argument variables were not correct
434 in the case of a MAIL command with additional options following the
435 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
436 were accidentally chopped off.
437
a14e5636
PH
438PH/29 SMTP synchronization checks are implemented when a command is read -
439 there is a check that no more input is waiting when there shouldn't be
440 any. However, for some commands, a delay in an ACL can mean that it is
441 some time before the response is written. In this time, more input might
442 arrive, invalidly. So now there are extra checks after an ACL has run for
443 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
444 pipelining has not been advertised.
445
ec95d1a6
PH
446PH/30 MH's patch to allow iscntrl() characters to be list separators.
447
42855d71
PH
448PH/31 Unlike :fail:, a custom message specified with :defer: was not being
449 returned in the SMTP response when smtp_return_error_details was false.
450 This has been fixed.
451
57c2c631
PH
452PH/32 Change the Dovecot authenticator to use read() and write() on the socket
453 instead of the C I/O that was originally supplied, because problems were
454 reported on Solaris.
455
58c01c94
PH
456PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
457 Exim which did not show up earlier: it was assuming that a call to
458 SSL_CTX_set_info_callback() might give an error value. In fact, there is
459 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
460 was a macro that became an assignment, so it seemed to work. This has
461 changed to a proper function call with a void return, hence the compile
462 error. Exim's code has been fixed.
463
dee5a20a
PH
464PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
465 cpus.
466
d2ee6114
PH
467PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
468
b2d5182b
PH
469PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
470
79749a79
PH
471PH/37 If a message is not accepted after it has had an id assigned (e.g.
472 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
473 "Completed" line in the log. When some messages of this type were
474 selected by exigrep, they were listed as "not completed". Others were
475 picked up by some special patterns. I have improved the selection
476 criteria to be more general.
79749a79 477
c456d9bb
PH
478PH/38 The host_find_failed option in the manualroute router can now be set
479 to "ignore", to completely ignore a host whose IP address cannot be
480 found. If all hosts are ignored, the behaviour is controlled by the new
481 host_all_ignored option.
482
cd9868ec
PH
483PH/39 In a list of hosts for manualroute, if one item (either because of multi-
484 homing or because of multiple MX records with /mx) generated more than
485 one IP address, and the following item turned out to be the local host,
486 all the secondary addresses of the first item were incorrectly removed
487 from the list, along with the local host and any following hosts (which
488 is what is supposed to happen).
489
ebeaf996
PH
490PH/40 When Exim receives a message, it writes the login name, uid, and gid of
491 whoever called Exim into the -H file. In the case of the daemon it was
492 behaving confusingly. When first started, it used values for whoever
493 started the daemon, but after a SIGHUP it used the Exim user (because it
494 calls itself on a restart). I have changed the code so that it now always
495 uses the Exim user.
496
2679d413
PH
497PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
498 message are rejected with the same error (e.g. no authentication or bad
499 sender address), and a DATA command is nevertheless sent (as can happen
500 with PIPELINING or a stupid MUA), the error message that was given to the
501 RCPT commands is included in the rejection of the DATA command. This is
502 intended to be helpful for MUAs that show only the final error to their
503 users.
504
84024b72
PH
505PH/42 Another patch from the Sieve maintainer.
506
8005d38e
SC
507SC/02 Eximstats - Differentiate between permanent and temporary rejects.
508 Eximstats - Fixed some broken HTML links and added missing column headers
509 (Jez Hancock).
510 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
511 columns for Rejects, Temp Rejects, Ham, and Spam rows.
512
3298c6c6
SC
513SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
514
a43a27c5
PH
515PH/43 Yet another patch from the Sieve maintainer.
516
58eb016e 517PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
518 the response to the final '.' that terminates a message, but only in the
519 case where the client has not sent further data following the '.'
520 (unfortunately, this is allowed). However, in many cases there won't be
521 any further data because there won't be any more messages to send. A call
522 to select() can be used: if it shows that the input is "ready", there is
523 either input waiting, or the socket has been closed. An attempt to read
524 the next input character can distinguish the two cases. Previously, Exim
58eb016e 525 would have sent an OK response which the client would never have see.
563b63fa
PH
526 This could lead to message repetition. This fix should cure that, at
527 least in a lot of common cases.
58eb016e 528
b43a74ea
PH
529PH/45 Do not advertise STARTTLS in response to HELP unless it would be
530 advertised in response to EHLO.
531
b4ed4da0 532
5dd1517f
PH
533Exim version 4.66
534-----------------
535
536PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
537 fixed by 4.65/MH/01 (is this a record?) are fixed:
538
539 (i) An empty string was always treated as zero by the numeric comparison
540 operators. This behaviour has been restored.
541
542 (ii) It is documented that the numeric comparison operators always treat
543 their arguments as decimal numbers. This was broken in that numbers
544 starting with 0 were being interpreted as octal.
545
546 While fixing these problems I realized that there was another issue that
547 hadn't been noticed. Values of message_size_limit (both the global option
548 and the transport option) were treated as octal if they started with 0.
549 The documentation was vague. These values are now always treated as
550 decimal, and I will make that clear in the documentation.
551
552
93cfa765
TK
553Exim version 4.65
554-----------------
555
556TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
557 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
558 versions. (#438)
559
d6066548
MH
560MH/01 Don't check that the operands of numeric comparison operators are
561 integers when their expansion is in "skipping" mode (fixes bug
562 introduced by 4.64-PH/07).
563
4362ff0d
PH
564PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
565 child addresses, Exim now panics and dies. Previously, because the count
566 is held in a short int, deliveries were likely to be lost. As such a
567 large number of recipients for a single message is ridiculous
568 (performance will be very, very poor), I have chosen to impose a limit
569 rather than extend the field.
570
93cfa765 571
944e9e9c
TF
572Exim version 4.64
573-----------------
aa41d2de 574
21d74bd9
TK
575TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
576 leftover -K file (the existence of which was triggered by #402).
577 While we were at it, introduced process PID as part of the -K
578 filename. This should rule out race conditions when creating
579 these files.
580
581TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
582 processing considerably. Previous code took too long for large mails,
583 triggering a timeout which in turn triggers #401.
584
585TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
586 in the DK code in transports.c. sendfile() is not really portable,
587 hence the _LINUX specificness.
944e9e9c
TF
588
589TF/01 In the add_headers option to the mail command in an Exim filter,
590 there was a bug that Exim would claim a syntax error in any
591 header after the first one which had an odd number of characters
592 in the field name.
593
2b1c6e3a
PH
594PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
595 callout verification, Exim cached a "reject" for the entire domain. This
596 is correct for most verifications, but it is not correct for a recipient
597 verification with use_sender or use_postmaster set, because in that case
598 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
599 case of MAIL FROM:<> rejection from other early rejections (e.g.
600 rejection of HELO). When verifying a recipient using a non-null MAIL
601 address, the cache is ignored if it shows MAIL FROM:<> rejection.
602 Whatever the result of the callout, the value of the domain cache is
603 left unchanged (for any other kind of callout, getting as far as trying
604 RCPT means that the domain itself is ok).
605
1f872c80
PH
606PH/02 Tidied a number of unused variable and signed/unsigned warnings that
607 gcc 4.1.1 threw up.
608
609PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
610 manifest itself as EPIPE rather than ECONNECT. When tidying away a
611 session, the daemon ignores ECONNECT errors and logs others; it now
612 ignores EPIPE as well.
613
d203e649
PH
614PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
615 (quoted-printable decoding).
616
cc2ed8f7 617PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 618 later the small subsequent patch to fix an introduced bug.
f951fd57 619
ddfcd446
PH
620PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
621
d45b1de8
PH
622PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
623
624PH/08 An error is now given if message_size_limit is specified negative.
625
38a0a95f 626PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 627 to be given (somewhat) arbitrary names.
38a0a95f 628
a2405d83
JJ
629JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
630 in 4.64-PH/09.
631
632JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
633 miscellaneous code fixes
634
6ea85e9a
PH
635PH/10 Added the log_reject_target ACL modifier to specify where to log
636 rejections.
637
26da7e20
PH
638PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
639 hostname. This is wrong, because it relates to the incoming message (and
640 probably the interface on which it is arriving) and not to the outgoing
641 callout (which could be using a different interface). This has been
642 changed to use the value of the helo_data option from the smtp transport
643 instead - this is what is used when a message is actually being sent. If
644 there is no remote transport (possible with a router that sets up host
645 addresses), $smtp_active_hostname is used.
6ea85e9a 646
14aa5a05 647PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 648 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
649 (a) The code assumed that strncpy() returns a negative number on buffer
650 overflow, which isn't the case. Replaced with Exim's string_format()
651 function.
652 (b) There were several signed/unsigned issues. I just did the minimum
653 hacking in of casts. There is scope for a larger refactoring.
654 (c) The code used strcasecmp() which is not a standard C function.
655 Replaced with Exim's strcmpic() function.
656 (d) The code set only $1; it now sets $auth1 as well.
657 (e) A simple test gave the error "authentication client didn't specify
658 service in request". It would seem that Dovecot has changed its
659 interface. Fortunately there's a specification; I followed it and
660 changed what the client sends and it appears to be working now.
661
ff75a1f7
PH
662PH/13 Added $message_headers_raw to provide the headers without RFC 2047
663 decoding.
664
e6f6568e
PH
665PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
666 address A is aliased to B and C, where B exists and C does not. Without
667 -v the output is "A verified" because verification stops after a
668 successful redirection if more than one address is generated. However,
669 with -v the child addresses are also verified. Exim was outputting "A
670 failed to verify" and then showing the successful verification for C,
671 with its parentage. It now outputs "B failed to verify", showing B's
672 parentage before showing the successful verification of C.
673
d6f6e0dc
PH
674PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
675 look up a TXT record in a specific list after matching in a combined
676 list.
677
322050c2
PH
678PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
679 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
680 they consult the DNS. I had assumed they would set it the way they
681 wanted; and indeed my experiments on Linux seem to show that in some
682 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
683 To be on the safe side, however, I have now made the interface to
684 host_find_byname() similar to host_find_bydns(), with an argument
685 containing the DNS resolver options. The host_find_byname() function now
686 sets these options at its start, just as host_find_bydns() does. The smtp
687 transport options dns_qualify_single and dns_search_parents are passed to
688 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
689 of host_find_byname() use the default settings of RES_DEFNAMES
690 (qualify_single) but not RES_DNSRCH (search_parents).
691
08955dd3
PH
692PH/17 Applied (a modified version of) Nico Erfurth's patch to make
693 spool_read_header() do less string testing, by means of a preliminary
694 switch on the second character of optional "-foo" lines. (This is
695 overdue, caused by the large number of possibilities that now exist.
696 Originally there were few.) While I was there, I also converted the
697 str(n)cmp tests so they don't re-test the leading "-" and the first
698 character, in the hope this might squeeze out yet more improvement.
699
1eccaa59
PH
700PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
701 flag allowing group syntax was set by the header_syntax check but not
702 turned off, possible causing trouble later; (2) The flag was not being
703 set at all for the header_verify test, causing "group"-style headers to
704 be rejected. I have now set it in this case, and also caused header_
705 verify to ignore an empty address taken from a group. While doing this, I
706 came across some other cases where the code for allowing group syntax
707 while scanning a header line wasn't quite right (mostly, not resetting
708 the flag correctly in the right place). These bugs could have caused
709 trouble for malformed header lines. I hope it is now all correct.
710
602e59e5
PH
711PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
712 with the "reply" argument non-NULL. The code, however (which originally
713 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
714 but it didn't always do it. This confused somebody who was copying the
715 code for some other use. I have removed all the tests.
716
411ef850
PH
717PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
718 feature that was used to support insecure browsers during the U.S. crypto
719 embargo. It requires special client support, and Exim is probably the
720 only MTA that supported it -- and would never use it because real RSA is
721 always available. This code has been removed, because it had the bad
722 effect of slowing Exim down by computing (never used) parameters for the
723 RSA_EXPORT functionality.
724
7befa435
PH
725PH/21 On the advice of Timo Sirainen, added a check to the dovecot
726 authenticator to fail if there's a tab character in the incoming data
727 (there should never be unless someone is messing about, as it's supposed
728 to be base64-encoded). Also added, on Timo's advice, the "secured" option
729 if the connection is using TLS or if the remote IP is the same as the
730 local IP, and the "valid-client-cert option" if a client certificate has
731 been verified.
732
48da4259 733PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
734 authenticators. This can be used for authorization after authentication
735 succeeds. (In the case of plaintext, it servers for both authentication
736 and authorization.)
737
48da4259
PH
738PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
739 if any retry times were supplied.
740
d1d5595c
PH
741PH/24 Exim crashed if verify=helo was activated during an incoming -bs
742 connection, where there is no client IP address to check. In this
743 situation, the verify now always succeeds.
744
0ef732d9
PH
745PH/25 Applied John Jetmore's -Mset patch.
746
328895cc
PH
747PH/26 Added -bem to be like -Mset, but loading a message from a file.
748
fd700877
PH
749PH/27 In a string expansion for a processed (not raw) header when multiple
750 headers of the same name were present, leading whitespace was being
751 removed from all of them, but trailing whitespace was being removed only
752 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
753 before concatenation. Completely empty headers in a concatenation (as
754 before) are ignored.
fd700877 755
8dce1a6f
PH
756PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
757 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
758
17af4a17
PH
759PH/29 [Removed. This was a change that I later backed out, and forgot to
760 correct the ChangeLog entry (that I had efficiently created) before
761 committing the later change.]
f6c332bd
PH
762
763PH/30 Exim was sometimes attempting to deliver messages that had suffered
764 address errors (4xx response to RCPT) over the same connection as other
765 messages routed to the same hosts. Such deliveries are always "forced",
766 so retry times are not inspected. This resulted in far too many retries
767 for the affected addresses. The effect occurred only when there were more
768 hosts than the hosts_max_try setting in the smtp transport when it had
769 the 4xx errors. Those hosts that it had tried were not added to the list
770 of hosts for which the message was waiting, so if all were tried, there
771 was no problem. Two fixes have been applied:
772
773 (i) If there are any address or message errors in an SMTP delivery, none
774 of the hosts (tried or untried) are now added to the list of hosts
775 for which the message is waiting, so the message should not be a
776 candidate for sending over the same connection that was used for a
777 successful delivery of some other message. This seems entirely
778 reasonable: after all the message is NOT "waiting for some host".
779 This is so "obvious" that I'm not sure why it wasn't done
780 previously. Hope I haven't missed anything, but it can't do any
781 harm, as the worst effect is to miss an optimization.
782
783 (ii) If, despite (i), such a delivery is accidentally attempted, the
784 routing retry time is respected, so at least it doesn't keep
785 hammering the server.
786
c1114884
PH
787PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
788 in ${readsocket because some servers need this prod.
789
7a0743eb
PH
790PH/32 Added some extra debug output when updating a wait-xxx database.
791
0d85fa3f
PH
792PH/33 The hint "could be header name not terminated by colon", which has been
793 given for certain expansion errors for a long time, was not being given
794 for the ${if def:h_colon_omitted{... case.
795
1bf43b78
PH
796PH/34 The spec says: "With one important exception, whenever a domain list is
797 being scanned, $domain contains the subject domain." There was at least
798 one case where this was not true.
799
520de300
PH
800PH/35 The error "getsockname() failed: connection reset by peer" was being
801 written to the panic log as well as the main log, but it isn't really
802 panic-worthy as it just means the connection died rather early on. I have
803 removed the panic log writing for the ECONNRESET error when getsockname()
804 fails.
805
48c7f9e2
PH
806PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
807 runs only) independently of the message's sender address. This meant
808 that, if the 4xx error was in fact related to the sender, a different
809 message to the same recipient with a different sender could confuse
810 things. In particualar, this can happen when sending to a greylisting
811 server, but other circumstances could also provoke similar problems.
812 I have changed the default so that the retry time for these errors is now
813 based a combination of the sender and recipient addresses. This change
814 can be overridden by setting address_retry_include_sender=false in the
815 smtp transport.
816
99ea1c86
PH
817PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
818 remote server are returned as part of bounce messages. This was not
819 happening for LMTP over a pipe (the lmtp transport), but now it is the
820 same for both kinds of LMTP.
821
a2042e78
PH
822PH/38 Despite being documented as not happening, Exim was rewriting addresses
823 in header lines that were in fact CNAMEs. This is no longer the case.
824
4fbcfc2e
PH
825PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
826 and queue runs started by the daemon processed all messages. This has
827 been fixed so that -R and -S can now usefully be given with -q<time>.
828
aa41d2de
PH
829PH/40 Import PCRE release 6.7 (fixes some bugs).
830
af561417
PH
831PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
832
3cc66b45
PH
833PH/42 Give an error if -q is specified more than once.
834
194cc0e4
PH
835PH/43 Renamed the variables $interface_address and $interface_port as
836 $received_ip_address and $received_port, to make it clear that these
837 values apply to message reception, and not to the outgoing interface when
838 a message is delivered. (The old names remain recognized, of course.)
839
a401ddaa
PH
840PH/44 There was no timeout on the connect() call when using a Unix domain
841 socket in the ${readsocket expansion. There now is.
842
4e88a19f
PH
843PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
844 be meaningful with "accept".
845
d7d7b289
SC
846SC/01 Eximstats V1.43
847 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
848
849SC/02 Eximstats V1.44
850 Use a glob alias rather than an array ref in the generated
851 parser. This improves both readability and performance.
852
853SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
854 Collect SpamAssassin and rejection statistics.
855 Don't display local sender or destination tables unless
856 there is data to show.
857 Added average volumes into the top table text output.
858
859SC/04 Eximstats V1.46
860 Collect data on the number of addresses (recipients)
861 as well as the number of messages.
862
863SC/05 Eximstats V1.47
864 Added 'Message too big' to the list of mail rejection
865 reasons (thanks to Marco Gaiarin).
866
867SC/06 Eximstats V1.48
868 Mainlog lines which have GMT offsets and are too short to
869 have a flag are now skipped.
870
871SC/07 Eximstats V1.49 (Alain Williams)
872 Added the -emptyok flag.
873
874SC/08 Eximstats V1.50
875 Fixes for obtaining the IP address from reject messages.
876
0ea2a468
JJ
877JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
878 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
879 whitesspace changes from 4.64-PH/27
880
881JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
882 match 4.64-PH/13
883
884JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
885 are found, allow negative numbers in numeric criteria)
886
887JJ/06 exipick.20061117.2, added new $message_body_missing variable
888
889JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
890 to match changes made in 4.64-PH/43
891
8a10f5a4
PH
892PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
893
30e18802
PH
894PH/47 Put in an explicit test for a DNS lookup of an address record where the
895 "domain" is actually an IP address, and force a failure. This locks out
896 those revolvers/nameservers that support "A-for-A" lookups, in
897 contravention of the specifications.
898
55728a4f
PH
899PH/48 When a host name was looked up from an IP address, and the subsequent
900 forward lookup of the name timed out, the host name was left in
901 $sender_host_name, contrary to the specification.
d7d7b289 902
d7837193
PH
903PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
904 restricted to single-key lookups, Exim was not diagnosing an error if
905 * or *@ was used with a query-style lookup.
906
87054a31
PH
907PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
908
ea2c01d2
MH
909MH/01 local_scan ABI version incremented to 1.1. It should have been updated
910 long ago, but noone interested enough thought of it. Let's just say that
911 the "1.1" means that there are some new functions that weren't there at
912 some point in the past.
913
e4fa6968
PH
914PH/51 Error processing for expansion failure of helo_data from an smtp
915 transport during callout processing was broken.
916
56f5d9bd
PH
917PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
918 tested/used via the -bh/-bhc/-bs options.
919
922e1c28
PH
920PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
921 bug, fixed in subsequent PCRE releases).
922
21eb6e72
PH
923PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
924 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
925
a0540757
PH
926PH/55 Check for a ridiculously long file name in exim_dbmbuild.
927
944e9e9c 928
478be7b0
SC
929Exim version 4.63
930-----------------
931
932SC/01 Use a glob alias rather than an array ref in eximstats generated
933 parser. This improves both readability and performance.
934
935SC/02 Collect SpamAssassin and rejection statistics in eximstats.
936 Don't display local sender or destination tables in eximstats unless
937 there is data to show.
938 Added average volumes into the eximstats top table text output.
939
940SC/03 Collect data on the number of addresses (recipients) as well
941 as the number of messages in eximstats.
942
2b965a65
TF
943TF/01 Correct an error in the documentation for the redirect router. Exim
944 does (usually) call initgroups() when daemonizing.
478be7b0 945
45b91596
PH
946TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
947 with consistent privilege compared to when running as a daemon.
478be7b0 948
c59f5781
TF
949TF/03 Note in the spec that $authenticated_id is not set for local
950 submissions from trusted users.
951
90fc3069
TF
952TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
953 Thanks to Dean Brooks <dean@iglou.com> for the patch.
954
6083aca0
TF
955TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
956 by adding some example configuration directives to the default
957 configuration file. A little bit of work is required to uncomment the
958 directives and define how usernames and passwords are checked, but
959 there is now a framework to start from.
960
765b530f
PH
961PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
962 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
963 without this. I don't know how relevant this is to other LDAP libraries.
964
4e167a8c
PH
965PH/02 Add the verb name to the "unknown ACL verb" error.
966
4608d683
PH
967PH/03 Magnus Holmgren's patch for filter_prepend_home.
968
b8dc3e4a
PH
969PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
970
5418e93b
PH
971PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
972 directory not expanded when it should be if an expanded home directory
973 was set for the address (which is overridden by the transport).
974
b4a9bda2
PH
975PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
976 libradius.
977
45b91596
PH
978PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
979 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
980 because it is too late at that time, and has no effect.
981
5547e2c5
PH
982PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
983 security issue with \' (bugzilla #107). I could not use the
984 PQescapeStringConn() function, because it needs a PGconn value as one of
985 its arguments.
986
dbcef0ea
PH
987PH/08 When testing addresses using -bt, indicate those final addresses that
988 are duplicates that would not cause an additional delivery. At least one
989 person was confused, thinking that -bt output corresponded to deliveries.
990 (Suppressing duplicates isn't a good idea as you lose the information
991 about possibly different redirections that led to the duplicates.)
992
25257489
PH
993PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
994 systems where poll() doesn't work, in particular OS X.
995
c816d124
PH
996PH/10 Added more information to debugging output for retry time not reached.
997
a9ccd69a
PH
998PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
999 operations in malware.c.
1000
75fa1910
PH
1001PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1002 signatures.
1003
a7d7aa58
PH
1004PH/13 If write_rejectlog was set false when logging was sent to syslog with
1005 syslog_duplication set false, log lines that would normally be written
1006 both the the main log and to the reject log were not written to syslog at
1007 all.
1008
42119b09
PH
1009PH/14 In the default configuration, change the use of "message" in ACL warn
1010 statements to "add_header".
1011
41609df5
PH
1012PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1013 not followed by a command (e.g. "seen endif").
1014
a5bd321b
PH
1015PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1016 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1017 latter.
1018
e85a7ad5 1019PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1020 so that it is now:
1021
e85a7ad5
PH
1022 ${if or { \
1023 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1024 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1025 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1026 }{no}{yes}}
1027
e85a7ad5
PH
1028 The Auto-Submitted: and various List- headers are standardised, whereas I
1029 don't think Precedence: ever was.
5dff5817 1030
d8fe1c03
PH
1031PH/18 Refactored debugging code in route_finduser() to show more information,
1032 in particular, the error code if getpwnam() issues one.
1033
16282d2b
PH
1034PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1035 This is apparently needed in addition to the PH/07 change above to avoid
1036 any possible encoding problems.
1037
35d40a98
PH
1038PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1039 but not after initializing Perl.
1040
034d99ab
PH
1041PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1042 output them only if debugging. By default they are written stderr,
1043 apparently, which is not desirable.
1044
6ec97b1b
PH
1045PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1046 queries.
1047
e22ca4ac
JJ
1048JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1049 --not options
1050
1051JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1052
33d73e3b
PH
1053PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1054 authenticated or an ident call has been made. Suppress the default
1055 values for $authenticated_id and $authenticated_sender (but permit -oMai
1056 and -oMas) when testing with -bh.
1057
9ecb03f3
PH
1058PH/24 Re-jigged the order of the tests in the default configuration so that the
1059 tests for valid domains and recipients precede the DNS black list and CSA
1060 tests, on the grounds that those ones are more expensive.
1061
084efe8d
PH
1062PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1063 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1064 This bug exists in every version of Exim that I still have, right back to
1065 0.12.
1066
366fc9f0
PH
1067PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1068 However, an attempt to turn on case-sensitivity in a regex key by
1069 including (?-i) didn't work because the subject string was already
1070 lowercased, and the effects were non-intuitive. It turns out that a
1071 one-line patch can be used to allow (?-i) to work as expected.
1072
c59f5781 1073
c887c79e
TF
1074Exim version 4.62
1075-----------------
1076
1077TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1078 other effects) broke the use of negated acl sub-conditions.
1079
1cce3af8
PH
1080PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1081 patch).
1082
afb3eaaf
PH
1083PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1084 "Deny" causes Exim to reject the incoming connection with a 554 error.
1085 Unfortunately, if there is a major crisis, such as a disk failure,
1086 tcp-wrappers gives "deny", whereas what one would like would be some
1087 kind of temporary error. A kludge has been added to help with this.
1088 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1089 554 error is used if errno is still zero or contains ENOENT (which occurs
1090 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1091 451 error is used.
1092
e173618b
PH
1093PH/03 Add -lutil to the default FreeBSD LIBS setting.
1094
dd16e114
PH
1095PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1096 errors. Otherwise a message that provokes a temporary error (when other
1097 messages do not) can cause a whole host to time out.
1098
f7fd3850
PH
1099PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1100 addresses were routed directly to files or pipes from a redirect router.
1101 File deliveries just didn't batch; pipe deliveries might have suffered
1102 odd errors.
1103
d87df92c
PH
1104PH/06 A failure to get a lock for a hints database would erroneously always say
1105 "Failed to get write lock", even when it was really a read lock.
1106
7e9f683d
PH
1107PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1108 of 0600. This has been changed to use the value of the lockfile_mode
1109 option (which defaults to 0600).
1110
bfad5236
PH
1111PH/08 Applied small patch from the Sieve maintainer.
1112
01c490df
PH
1113PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1114 folder from quota calculations, a direct delivery into this folder messed
1115 up the contents of the maildirsize file. This was because the regex was
1116 used only to exclude .Trash (or whatever) when the size of the mailbox
1117 was calculated. There was no check that a delivery was happening into an
1118 excluded directory. This bug has been fixed by ignoring all quota
1119 processing for deliveries into excluded directories.
1120
d6629cdc
PH
1121PH/10 Added the maildirfolder_create_regex option to appendfile.
1122
1cce3af8 1123
214e2000
PH
1124Exim version 4.61
1125-----------------
1126
1127PH/01 The code for finding all the local interface addresses on a FreeBSD
1128 system running IPv6 was broken. This may well have applied to all BSD
1129 systems, as well as to others that have similar system calls. The broken
1130 code found IPv4 interfaces correctly, but gave incorrect values for the
1131 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1132 that it would not match correctly against @[] and not recognize the IPv6
1133 addresses as local.
1134
f9daeae0
PH
1135PH/02 The ipliteral router was not recognizing addresses of the form user@
1136 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1137
7e66e54d
PH
1138PH/03 Added disable_ipv6.
1139
c8ea1597
PH
1140PH/04 Changed $reply_address to use the raw form of the headers instead of the
1141 decoded form, because it is most often used to construct To: headers
1142 lines in autoreplies, and the decoded form may well be syntactically
1143 invalid. However, $reply_address has leading white space removed, and all
1144 newlines turned into spaces so that the autoreply transport does not
1145 grumble.
1146
911f6fde
PH
1147PH/05 If group was specified without a user on a router, and no group or user
1148 was specified on a transport, the group from the router was ignored.
1149
47ca6d6c
PH
1150PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1151 for visible compile-time settings that can be used to change these
1152 numbers, for those that want even more. Backwards compatibility with old
1153 spool files has been maintained. However, going back to a previous Exim
1154 release will lost any variables that are in spool files.
1155
ed0e9820
PH
1156PH/07 Two small changes when running in the test harness: increase delay when
1157 passing a TCP/IP connection to a new process, in case the original
1158 process has to generate a bounce, and remove special handling of
1159 127.0.0.2 (sic), which is no longer necessary.
1160
eff37e47
PH
1161PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1162 be the same on different OS.
1163
1921d2ea
PH
1164PH/09 Moved a debug statement in filter processing to avoid a race problem when
1165 testing.
1166
b3f69ca8
JJ
1167JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1168 whether --show-vars was specified or not
1169
1170JJ/02 exipick: Added support for new ACL variable spool format introduced
1171 in 4.61-PH/06
1172
424a1c63
PH
1173PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1174 syntactically invalid From: or Reply-to: line, and a filter used this to
1175 generate an autoreply, and therefore failed to obtain an address for the
1176 autoreply, Exim could try to deliver to a non-existent relative file
1177 name, causing unrelated and misleading errors. What now happens is that
1178 it logs this as a hard delivery error, but does not attempt to create a
1179 bounce message.
1180
7a100415
PH
1181PH/11 The exinext utility has a -C option for testing purposes, but although
1182 the given file was scanned by exinext itself; it wasn't being passed on
1183 when Exim was called.
1184
19b9dc85
PH
1185PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1186 an end-of-file indication when reading a command response.
1187
309bd837
PH
1188PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1189 compiled. In many other places in Exim, IPv6 addresses are always
1190 recognized, so I have changed this. It also means that IPv4 domain
1191 literals of the form [IPV4:n.n.n.n] are now always recognized.
1192
59e82a2a
PH
1193PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1194 used if the router is not running as root, for example, when verifying at
1195 ACL time, or when using -bh. The debugging output from this situation was
1196 non-existent - all you got was a failure to exec. I have made two
1197 changes:
1198
1199 (a) Failures to set uid/gid, the current directory, or a process leader
1200 in a subprocess such as that created by queryprogram now generate
1201 suitable debugging ouput when -d is set.
1202
1203 (b) The queryprogram router detects when it is not running as root,
1204 outputs suitable debugging information if -d is set, and then runs
1205 the subprocess without attempting to change uid/gid.
1206
9edc04ce
PH
1207PH/15 Minor change to Makefile for building test_host (undocumented testing
1208 feature).
1209
1349e1e5
PH
1210PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1211 additional section of a DNS packet that returns MX or SRV records.
1212 Instead, it always explicitly searches for A/AAAA records. This avoids
1213 major problems that occur when a DNS server includes only records of one
1214 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1215 fixed another bug: if SRV records were looked up and the corresponding
1216 address records were *not* found in the additional section, the port
1217 values from the SRV records were lost.
1218
ea49d0e1
PH
1219PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1220 using the correct key (the original address) when searching the retry
1221 rules in order to find which one to use for generating the retry hint.
1222
064a94c9
PH
1223PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1224 adding the default one. Similarly, if it contains a Reply-To: header, the
1225 errors_reply_to option, if set, is not used.
1226
727071f8
PH
1227PH/19 When calculating a retry time, Exim used to measure the "time since
1228 failure" by looking at the "first failed" field in the retry record. Now
1229 it does not use this if it is later than than the arrival time of the
1230 message. Instead it uses the arrival time. This makes for better
1231 behaviour in cases where some deliveries succeed, thus re-setting the
1232 "first failed" field. An example is a quota failure for a huge message
1233 when small messages continue to be delivered. Without this change, the
1234 "time since failure" will always be short, possible causing more frequent
1235 delivery attempts for the huge message than are intended.
dd16e114 1236 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1237
f78eb7c6
PH
1238PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1239 $1, $2, $3) because the numerical variables can be reset during some
1240 expansion items (e.g. "match"), thereby losing the authentication data.
1241
21c28500
PH
1242PH/21 Make -bV show the size of off_t variables so that the test suite can
1243 decide whether to run tests for quotas > 2G.
1244
1245PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1246 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1247 filecount value is greater than 2G or if a quota value is greater than 2G
1248 on a system where the size of off_t is not greater than 4, a panic error
1249 is given.
1250
1688f43b
PH
1251PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1252 never match. The debug and -bh output now contains an explicit error
1253 message indicating a malformed IPv4 address or mask.
1254
1255PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1256 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1257 PH/23 above applies.
1258
9675b384
PH
1259PH/25 Do not write to syslog when running in the test harness. The only
1260 occasion when this arises is a failure to open the main or panic logs
1261 (for which there is an explicit test).
1262
6a3f1455
PH
1263PH/26 Added the /no_tell option to "control=freeze".
1264
dac79d3e
PH
1265PH/27 If a host name lookup failed very early in a connection, for example, if
1266 the IP address matched host_lookup and the reverse lookup yielded a name
1267 that did not have a forward lookup, an error message of the form "no IP
1268 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1269 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1270
5977a0b3
PH
1271PH/28 An enabling patch from MH: add new function child_open_exim2() which
1272 allows the sender and the authenticated sender to be set when
1273 submitting a message from within Exim. Since child_open_exim() is
1274 documented for local_scan(), the new function should be too.
1275
c91535f3
PH
1276PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1277 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1278 results in an empty string is now treated as unset.
1279
0d46a8c8
PH
1280PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1281
278c6e6c
PH
1282PH/31 Added sender_verify_fail logging option.
1283
2cbb4081
PH
1284PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1285 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1286 tidied the source and removed it altogether.
1287
3eef829e
PH
1288PH/33 When a queue run was abandoned because the load average was too high, a
1289 log line was always written; now it is written only if the queue_run log
1290 selector is set. In addition, the log line for abandonment now contains
1291 information about the queue run such as the pid. This is always present
1292 in "start" and "stop" lines but was omitted from the "abandon" line.
1293
1ab95fa6
PH
1294PH/34 Omit spaces between a header name and the colon in the error message that
1295 is given when verify = headers_syntax fails (if there are lots of them,
1296 the message gets confusing).
1297
230205fc
PH
1298PH/35 Change the default for dns_check_names_pattern to allow slashes within
1299 names, as there are now some PTR records that contain slashes. This check
1300 is only to protect against broken name servers that fall over on strange
1301 characters, so the fact that it applies to all lookups doesn't matter.
1302
75e0e026
PH
1303PH/36 Now that the new test suite is complete, we can remove some of the
1304 special code in Exim that was needed for the old test suite. For example,
1305 sorting DNS records because real resolvers return them in an arbitrary
1306 order. The new test suite's fake resolver always returns records in the
1307 same order.
1308
1309PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1310 bounces) except when queue_only is set, to avoid logging races between
1311 the different processes.
1312
145396a6
PH
1313PH/38 Panic-die if .include specifies a non-absolute path.
1314
3cd34f13
PH
1315PH/39 A tweak to the "H" retry rule from its user.
1316
11121d3d
JJ
1317JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1318 a label. They prevented compilation on older perls.
1319
1320JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1321 a warning to be raised on newish perls.
1322
1323JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1324 on queue. Changes to match documented behaviour of showing count of
1325 messages matching specified criteria.
1326
8def5aaf
PH
1327PH/40 Changed the default ident timeout from 30s to 5s.
1328
929ba01c
PH
1329PH/41 Added support for the use of login_cap features, on those BSD systems
1330 that have them, for controlling the resources used by pipe deliveries.
1331
2632889e
PH
1332PH/42 The content-scanning code uses fopen() to create files in which to put
1333 message data. Previously it was not paying any attention to the mode of
1334 the files. Exim runs with umask(0) because the rest of the code creates
1335 files with open(), and sets the required mode explicitly. Thus, these
1336 files were ending up world-writeable. This was not a big issue, because,
1337 being within the spool directory, they were not world-accessible. I have
1338 created a function called modefopen, which takes an additional mode
1339 argument. It sets umask(777), creates the file, chmods it to the required
1340 mode, then resets the umask. All the relevant calls to fopen() in the
1341 content scanning code have been changed to use this function.
1342
944a9c55
PH
1343PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1344 to 24 hours. This avoids potential overflow problems when processing G
1345 and H retry rules. I suspect nobody ever tinkers with this value.
1346
4a23603b
PH
1347PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1348
4730f942
PH
1349PH/45 When the plaintext authenticator is running as a client, the server's
1350 challenges are checked to ensure they are valid base64 strings. By
1351 default, the authentication attempt is cancelled if an invalid string is
1352 received. Setting client_ignore_invalid_base64 true ignores these errors.
1353 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1354 they are received. Thus, the responses can be made to depend on the
1355 challenges. If an invalid string is ignored, an empty string is placed in
1356 the variable.
1357
30dba1e6
PH
1358PH/46 Messages that are created by the autoreply transport now contains a
1359 References: header, in accordance with RFCs 2822 and 3834.
1360
382afc6b
PH
1361PH/47 Added authenticated_sender_force to the smtp transport.
1362
a86229cf
PH
1363PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1364
50c99ba6
PH
1365PH/49 Installed latest patch from the Sieve maintainer.
1366
d35e429d
PH
1367PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1368 was also set, the appendfile transport was unnecessarily scanning a
1369 directory of message files (e.g. for maildir delivery) to find the count
1370 of files (along with the size), even though it did not need this
1371 information. It now does the scan only if it needs to find either the
1372 size of the count of files.
1373
f90d018c
PH
1374PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1375
75def545
PH
1376PH/52 Two bugs concerned with error handling when the smtp transport is
1377 used in LMTP mode:
1378
1379 (i) Exim was not creating retry information for temporary errors given
1380 for individual recipients after the DATA command when the smtp transport
1381 was used in LMTP mode. This meant that they could be retried too
1382 frequently, and not timed out correctly.
1383
1384 (ii) Exim was setting the flag that allows error details to be returned
1385 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1386 recipients that were returned after the DATA command.
1387
1388PH/53 This is related to PH/52, but is more general: for any failing address,
1389 when detailed error information was permitted to be returned to the
1390 sender, but the error was temporary, then after the final timeout, only
1391 "retry timeout exceeded" was returned. Now it returns the full error as
1392 well as "retry timeout exceeded".
1393
c46782ef
PH
1394PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1395 do this, and (what is worse) MTAs that accept it.
1396
71fafd95
PH
1397PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1398 will now be deprecated.
1399
2c5db4fd
PH
1400PH/56 New os.c-cygwin from the Cygwin maintainer.
1401
9cf6b11a
JJ
1402JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1403 formats (previously only available in exim formats via -bpr, -bpru,
1404 and -bpra. Now also available in native and exiqgrep formats)
1405
1406JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1407 with very large, slow to parse queues
1408
1409JJ/08 exipick: added ! as generic prefix to negate any criteria format
1410
1411JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1412
898d150f
PH
1413PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1414 responses to authentication challenges, though it was showing the
1415 challenges; (ii) I've removed the CR characters from the debug output for
1416 SMTP output lines.
1417
46218253
PH
1418PH/58 Allow for the insertion of a newline as well as a space when a string
1419 is turned into more than one encoded-word during RFC 2047 encoding. The
1420 Sieve code now uses this.
1421
e97957bc
PH
1422PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1423 data_4xx, lost_connection, tls_required.
1424
81e509d7
PH
1425PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1426 message was being sent as an SMTP response.
1427
3d240ff7
PH
1428PH/61 Add -l and -k options to exicyclog.
1429
b37c4101
PH
1430PH/62 When verifying, if an address was redirected to one new address, so that
1431 verification continued, and the new address failed or deferred after
1432 having set something in $address_data, the value of $address_data was not
1433 passed back to the ACL. This was different to the case when no
1434 redirection occurred. The value is now passed back in both cases.
1435
79378e0f
PH
1436PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1437 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1438 use login_cap.h, so on its own it isn't the distinguishing feature. The
1439 new name refers directly to the setclassresources() function.
1440
e49c7bb4
PH
1441PH/65 Added configuration files for NetBSD3.
1442
d114ec46
PH
1443PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1444
f3d7df6c
PH
1445PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1446 is preferred over IPv4.
1447
715ab376
PH
1448PH/68 The bounce_return_message and bounce_return_body options were not being
1449 honoured for bounces generated during the reception of non-SMTP messages.
1450 In particular, this applied to messages rejected by the ACL. This bug has
1451 been fixed. However, if bounce_return_message is true and bounce_return_
1452 body is false, the headers that are returned for a non-SMTP message
1453 include only those that have been read before the error was detected.
1454 (In the case of an ACL rejection, they have all been read.)
1455
6b31b150
PH
1456PH/69 The HTML version of the specification is now built in a directory called
1457 spec_html instead of spec.html, because the latter looks like a path with
1458 a MIME-type, and this confuses some software.
1459
1460PH/70 Catch two compiler warnings in sieve.c.
1461
d515a917
PH
1462PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1463 function verify_get_ident() calls ip_connect() to connect a socket, but
1464 if the "connect()" function timed out, ip_connect() used to close the
1465 socket. However, verify_get_ident() also closes the socket later, and in
1466 between Exim writes to the log, which may get opened at this point. When
1467 the socket was closed in ip_connect(), the log could get the same file
1468 descriptor number as the socket. This naturally causes chaos. The fix is
1469 not to close the socket in ip_connect(); the socket should be closed by
1470 the function that creates it. There was only one place in the code where
1471 this was missing, in the iplookup router, which I don't think anybody now
1472 uses, but I've fixed it anyway.
1473
9b8fadde
PH
1474PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1475 well as to direct DNS lookups. Otherwise the handling of names in host
1476 lists is inconsistent and therefore confusing.
1477
214e2000 1478
5de37277
PH
1479Exim version 4.60
1480-----------------
1481
cc38ddbf
PH
1482PH/01 Two changes to the default runtime configuration:
1483
1484 (1) Move the checks for relay_from_hosts and authenticated clients from
1485 after to before the (commented out) DNS black list checks.
1486
1487 (2) Add control=submission to the relay_from_hosts and authenticated
1488 clients checks, on the grounds that messages accepted by these
1489 statements are most likely to be submissions.
5de37277 1490
72fdd6ae
PH
1491PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1492
1493 (1) Generate an error if the third argument for the ${prvs expansion is
1494 not a single digit.
1495
1496 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1497 string.
1498
1499 (3) Reset the variables that are obtained from the first argument of
1500 ${prvscheck and used in the second argument before leaving the code,
1501 because their memory is reclaimed, so using them afterwards may do
1502 silly things.
1503
1504 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1505 one (it's much easier than Tom thought :-).
1506
1507 (5) Because of (4), we can now allow for the use of $prvscheck_result
1508 inside the third argument.
cb9328de 1509
cb741023
PH
1510PH/03 For some reason, the default setting of PATH when running a command from
1511 a pipe transport was just "/usr/bin". I have changed it to
1512 "/bin:/usr/bin".
1513
f174f16e
PH
1514PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1515 anything to be listed in the output from -bV.
b2f5a032 1516
c25242d7
PH
1517PH/05 When a filter generated an autoreply, the entire To: header line was
1518 quoted in the delivery log line, like this:
1519
1520 => >A.N.Other <ano@some.domain> <original@ddress> ...
1521
1522 This has been changed so that it extracts the operative address. There
1523 may be more than one such address. If so, they are comma-separated, like
1524 this:
1525
1526 => >ano@some.domain,ona@other.domain <original@ddress> ...
1527
82c19f95
PH
1528PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1529 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1530 not being looked up in the rDNS to get a host name, Exim was showing the
1531 IP address twice in Received: lines, even though the IP addresses were
1532 identical. For example:
1533
1534 Received: from [1.2.3.4] (helo=[1.2.3.4])
1535
1536 However, if the real host name was known, it was omitting the HELO data
1537 if it matched the actual IP address. This has been tidied up so that it
1538 doesn't show the same IP address twice.
1539
d7ffbc12
PH
1540PH/07 When both +timestamp and +memory debugging was on, the value given by
1541 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1542 called by the debug printing, thereby overwriting the timestamp buffer.
1543 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1544
9f526266
PH
1545PH/08 When the original message was included in an autoreply transport, it
1546 always said "this is a copy of the message, including all the headers",
1547 even if body_only or headers_only was set. It now gives an appropriate
1548 message.
1549
87fcc8b9
PH
1550PH/09 Applied a patch from the Sieve maintainer which:
1551
1552 o fixes some comments
1553 o adds the (disabled) notify extension core
1554 o adds some debug output for the result of if/elsif tests
1555 o points to the current vacation draft in the documentation
1556 and documents the missing references header update
1557
1558 and most important:
1559
1560 o fixes a bug in processing the envelope test (when testing
1561 multiple envelope elements, the last element determinted the
1562 result)
1563
456682f5
PH
1564PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1565 Electronic Mail") by including:
1566
1567 Auto-submitted: auto-generated
1568
1569 in the messages that it generates (bounce messages and others, such as
1570 warnings). In the case of bounce messages for non-SMTP mesages, there was
1571 also a typo: it was using "Auto_submitted" (underscore instead of
1572 hyphen). Since every message generated by Exim is necessarily in response
1573 to another message, thes have all been changed to:
1574
1575 Auto-Submitted: auto-replied
1576
1577 in accordance with these statements in the RFC:
1578
1579 The auto-replied keyword:
1580
1581 - SHOULD be used on messages sent in direct response to another
1582 message by an automatic process,
1583
1584 - MUST NOT be used on manually-generated messages,
1585
1586 - MAY be used on Delivery Status Notifications (DSNs) and Message
1587 Disposition Notifications (MDNs),
1588
1589 - MUST NOT be used on messages generated by automatic or periodic
1590 processes, except for messages which are automatic responses to
1591 other messages.
1592
3e46c1aa
PH
1593PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1594 to the default Received: header definition.
456682f5 1595
49826d12
PH
1596PH/12 Added log selector acl_warn_skipped (default on).
1597
eba0c039
PH
1598PH/13 After a successful wildlsearch lookup, discard the values of numeric
1599 variables because (a) they are in the wrong storage pool and (b) even if
1600 they were copied, it wouldn't work properly because of the caching.
1601
a0d6ba8a
PH
1602PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1603 checking when decoding. Apparently there are clients that generate
1604 overlong encoded strings. Why am I not surprised?
1605
f0917727
PH
1606PH/15 If the first argument of "${if match_address" was not empty, but did not
1607 contain an "@" character, Exim crashed. Now it writes a panic log message
1608 and treats the condition as false.
1609
096fee00
PH
1610PH/16 In autoreply, treat an empty string for "once" the same as unset.
1611
024bd3c2
PH
1612PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1613 extension "envelope-auth". The code is finished and in agreement with
1614 other implementations, but there is no documentation so far and in fact,
1615 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1616 not changing the active code.
1617
1618 Print executed "if" and "elsif" statements when debugging is used. This
1619 helps a great deal to understand what a filter does.
1620
1621 Document more things not specified clearly in RFC3028. I had all this
1622 sorted out, when out of a sudden new issues came to my mind. Oops."
1623
df199fec
PH
1624PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1625 (Bugzilla #53).
1626
d27f1df3
PH
1627PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1628 canonical form (as documented). However, after a host name lookup from
1629 the IP address, check_host() was doing a simple string comparison with
1630 addresses acquired from the DNS when checking that the found name did
1631 have the original IP as one of its addresses. Since any found IPv6
1632 addresses are likely to be in abbreviated form, the comparison could
1633 fail. Luckily, there already exists a function for doing the comparison
1634 by converting both addresses to binary, so now that is used instead of
1635 the text comparison.
1636
96776534
PH
1637PH/20 There was another similar case to PH/19, when a complete host name was
1638 given in a host list; looking up its IP address could give an abbreviated
1639 form, whereas the current host's name might or might not be abbreviated.
1640 The same fix has been applied.
1641
5de37277 1642
9a799bc0
PH
1643Exim version 4.54
1644-----------------
1645
1646PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1647 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1648 It now does.
1649
99a4b039
PH
1650PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1651 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1652
1653PH/03 Typo: missing ".o" in src/pcre/Makefile.
1654
4b233853
PH
1655PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1656 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1657 Also, for "Auto-Submitted", treat anything other than "no" as
1658 non-personal, in accordance with RFC 3834. (Previously it treated
1659 anything starting "auto-" as non-personal.)
1660
8857ccfd
PH
1661TF/01 The control=submission/name=... option had a problem with syntax
1662 errors if the name included a slash character. The /name= option
1663 now slurps the rest of the string, so it can include any characters
1664 but it must come last in the list of options (after /sender_retain
1665 or /domain=).
1666
433a2980
PH
1667PH/05 Some modifications to the interface to the fake nameserver for the new
1668 testing suite.
1669
3e46c1aa 1670
9a799bc0 1671
e3a311ba
TK
1672Exim version 4.53
1673-----------------
1674
1675TK/01 Added the "success_on_redirect" address verification option. See
1676 NewStuff for rationale and an example.
1677
13b685f9
PH
1678PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1679
395ff96d
PH
1680PH/02 Patch to exigrep to allow it to work on syslog lines.
1681
5b68f6e4
PH
1682PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1683 fread() to skip over the body file's header line, because in Cygwin the
1684 header line is locked and is inaccessible.
1685
1ab52c69
PH
1686PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1687 co-exist for some time) to make it clear that it is the Exim ID that is
1688 referenced, not the Message-ID: header line.
1689
b07e6aa3
PH
1690PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1691 string_format() function, because snprintf() does not exist on all
1692 operating systems.
1693
254e032f
PH
1694PH/06 The use of forbid_filter_existstest now also locks out the use of the
1695 ${stat: expansion item.
1696
3af76a81
PH
1697PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1698 protocol synchronization error", to keep the pedants happy.
1699
2548ba04
PH
1700PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1701 well as for IRIX systems, when gcc is being used. See the host.c source
1702 file for comments.
1703
b6c6011d
PH
1704PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1705
cf39cf57
PH
1706PH/10 Named domain lists were not working if used in a queue_smtp_domains
1707 setting.
1708
f1513293
PH
1709PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1710 transport and to the smtp transport in LMTP mode.
1711
727549a4
PH
1712TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1713
af46795e
PH
1714PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1715 run a filter in a subprocess. This could lead to confusion in subsequent
1716 lookups in the parent process. There should also be a search_tidyup() at
1717 the end of the subprocess.
1718
d7b47fd0
PH
1719PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1720 only if the host matched helo_try_verify_hosts, which caused the
1721 verification to occur when the EHLO/HELO command was issued. The ACL just
1722 tested the remembered result. Now, if a previous verification attempt has
1723 not happened, "verify = helo" does it there and then.
1724
ee744174
JJ
1725JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1726
b582ab87
PH
1727TK/03 Fix log output including CR from clamd.
1728
41a13e0a
PH
1729PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1730 exist provoked a memory error which could cause a segfault.
1731
f625cc5a
PH
1732PH/15 Installed PCRE 6.2
1733
1734PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1735
21f7af35
PH
1736PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1737 of the problem. Specifically, suggested +O2 rather than +O1 for the
1738 HP-UX compiler.
1739
31480e42
PH
1740PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1741
2d280592
PH
1742PH/20 If a delivery was routed to a non-standard port by means of an SRV
1743 record, the port was not correctly logged when the outgoing_port log
1744 selector was set (it logged the transort's default port).
1745
7cd1141b
PH
1746PH/21 Added support for host-specific ports to manualroute, queryprogram,
1747 fallback_hosts, and "hosts" in the smtp transport.
1748
1749PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1750 host errors such as "Connection refused".
1751
750af86e
PH
1752PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1753 authentication with radiusclient 0.4.9:
1754
1755 - Error returned from rc_read_config was caught wrongly
1756 - Username/password not passed on to radius server due to wrong length.
1757
1758 The presumption is that some radiusclient API changes for 4.51/PH/17
1759 were not taken care of correctly. The code is still untested by me (my
1760 Linux distribution still has 0.3.2 of radiusclient), but it was
1761 contributed by a Radius user.
1762
1763PH/24 When doing a callout, the value of $domain wasn't set correctly when
1764 expanding the "port" option of the smtp transport.
1765
4304270b
TK
1766TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1767 while reading a MIME header. Thanks to Tom Hughes for a patch.
1768
750af86e
PH
1769PH/24 Include config.h inside local_scan.h so that configuration settings are
1770 available.
1771
64ffc24f
PH
1772PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1773 that in an ACL for RCPT (for example), you can examine exactly what was
1774 received.
1775
5dd9625b
PH
1776PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1777 commands, but it was not correctly comparing the address with the actual
1778 client host address. Thus, it would show the EHLO address in Received:
1779 header lines when this was not necessary.
1780
5591031b
PH
1781PH/27 Added the % operator to ${eval:}.
1782
ba18e66a
PH
1783PH/28 Exim tries to create and chdir to its spool directory when it starts;
1784 it should be ignoring failures (because with -C, for example, it has lost
1785 privilege). It wasn't ignoring creation failures other than "already
1786 exists".
1787
9cec981f
PH
1788PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1789 -bV or -d is used.
1790
aa2b5c79
PH
1791PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1792 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1793 too many continuations, the temporary file was not being removed, and the
1794 return code was incorrect.
aa2b5c79 1795
48a53b7f
PH
1796PH/31 Missing "BOOL" in function definition in filtertest.c.
1797
1c59d63b
PH
1798PH/32 Applied Sieve patches from the maintainer.
1799
671012da
TK
1800TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1801
1509d3a8
PH
1802PH/33 Added "verify = not_blind".
1803
1804PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1805 Local/Makefile (with some defaults set). These are used in built scripts
1806 such as exicyclog, but they have never been used in the exim_install
1807 script (though there are many overriding facilities there). I have
1808 arranged that the exim_install script now takes note of these two
1809 settings.
1810
1811PH/35 Installed configuration files for Dragonfly.
1812
2fe1a124
PH
1813PH/36 When a locally submitted message by a trusted user did not contain a
1814 From: header, and the sender address was obtained from -f or from an SMTP
1815 MAIL command, and the trusted user did not use -F to supply a sender
1816 name, $originator_name was incorrectly used when constructing a From:
1817 header. Furthermore, $originator_name was used for submission mode
1818 messages from external hosts without From: headers in a similar way,
1819 which is clearly wrong.
1820
8800895a
PH
1821PH/37 Added control=suppress_local_fixups.
1822
ccfdb010
PH
1823PH/38 When log_selector = +received_sender was set, and the addition of the
1824 sender made the log line's construction buffer exactly full, or one byte
1825 less than full, an overflow happened when the terminating "\n" was
1826 subsequently added.
1827
1130bfb0
PH
1828PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1829 when the result of a list match is failure because a DNS lookup failed.
1830
ebcb507f
PH
1831PH/40 RM_COMMAND is now used in the building process.
1832
c35e155c
PH
1833PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1834 the "build-* directories that it finds.
1835
95d1f782
PH
1836PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1837 address in a domain literal was a prefix of an interface address.
1838
fd6de02e
PH
1839PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1840 when verifying a sender address, unless rewrite_headers is false.
1841
58de37c5
PH
1842PH/44 Wrote a long comment about why errors_to addresses are verified as
1843 recipients, not senders.
1844
261cf466
TF
1845TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1846 the ratelimit ACL was added.
1847
3ee512ff
PH
1848PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1849
e08c430f
PH
1850PH/46 Added extra information about PostgreSQL errors to the error string.
1851
bef5a11f
PH
1852PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1853 avoiding the need to install special zones in a real server. This is
1854 backwards compatible; if it can't find the fake resolver, it drops back.
1855 Thus, both old and new test suites can be run.
1856
7546de58
TF
1857TF/02 Added util/ratelimit.pl
1858
e5d5a95f
TF
1859TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1860 clock is set back in time.
1861
2e88a017
TF
1862TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1863 Candler <B.Candler@pobox.com>.
1864
a5f65aa4
TF
1865TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1866 OK for addresses that are the result of redirections.
1867
e7726cbf
PH
1868PH/48 A number of further additions for the benefit of the new test suite,
1869 including a fake gethostbyname() that interfaces to the fake DNS resolver
1870 (see PH/47 above).
1871
a7fdad5b
TF
1872TF/06 The fix for widen_domains has also been applied to qualify_single and
1873 search_parents which are the other dnslookup options that can cause
1874 header rewrites.
1875
6af56900
PH
1876PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1877 type ("H").
1878
0925ede6
PH
1879PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1880
66afa403
TF
1881TF/07 Exim produced the error message "an SRV record indicated no SMTP
1882 service" if it encountered an MX record with an empty target hostname.
1883 The message is now "an MX or SRV record indicated no SMTP service".
1884
0154e85a
TF
1885TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1886 if the DNS of the sending site is misconfigured. This is quite a
1887 common situation. This change restores the behaviour of treating a
1888 helo verification defer as a failure.
1889
16f12c76
PH
1890PH/51 If self=fail was set on a router, the bounce message did not include the
1891 actual error message.
1892
bbe902f0 1893
e5a9dba6
PH
1894Exim version 4.52
1895-----------------
1896
1897TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1898
22c3b60b
PH
1899PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1900 command itself ended in error, the underlying message about the transport
1901 filter timeout was being overwritten with the pipe command error. Now the
1902 underlying error message should be appended to the second error message.
1903
06a9b4b5
PH
1904TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1905
c1ac6996
PH
1906PH/02 Reduce the amount of output that "make" produces by default. Full output
1907 can still be requested.
1908
9c7a242c
PH
1909PH/03 The warning log line about a condition test deferring for a "warn" verb
1910 was being output only once per connection, rather than after each
1911 occurrence (because it was using the same function as for successful
1912 "warn" verbs). This seems wrong, so I have changed it.
1913
87ba3f5f
PH
1914TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1915 it should not have, which might have caused a crash in the right
1916 circumstances, but probably never did.
1917
1918PH/04 Installed a modified version of Tony Finch's patch to make submission
1919 mode fix the return path as well as the Sender: header line, and to
1920 add a /name= option so that you can make the user's friendly name appear
1921 in the header line.
1922
29aba418
TF
1923TF/03 Added the control = fakedefer ACL modifier.
1924
fe0dab11
TF
1925TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1926 Mark Lowes for thorough testing.
870f6ba8 1927
11d337a4
TK
1928TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1929
1930TK/03 Merged latest SRS patch from Miles Wilton.
1931
415c8f3b
PH
1932PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1933 with the definition in sysexits.h (which is #included earlier).
1934 Fortunately, Exim does not actually use EX_OK. The code used to try to
1935 preserve the sysexits.h value, by assumimg that macro definitions were
1936 scanned for macro replacements. I have been disabused of this notion,
1937 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1938
958541e9
PH
1939PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1940 in the smtp transport. When a block could not be written in a single
1941 write() function, the timeout was being re-applied to each part-write.
1942 This seems wrong - if the receiver was accepting one byte at a time it
1943 would take for ever. The timeout is now adjusted when this happens. It
1944 doesn't have to be particularly precise.
1945
c206415f
TK
1946TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1947 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1948
2a4be8f9
PH
1949PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1950 without a domain if the check to <postmaster@domain> fails.
1951
1cba11c5
SC
1952SC/01 Eximstats: added -xls and the ability to specify output files
1953 (patch written by Frank Heydlauf).
1954
1955SC/02 Eximstats: use FileHandles for outputing results.
1956
1957SC/03 Eximstats: allow any combination of xls, txt, and html output.
1958
1959SC/04 Eximstats: fixed display of large numbers with -nvr option
1960
1961SC/05 Eximstats: fixed merging of reports with empty tables.
1962
1963SC/06 Eximstats: added the -include_original_destination flag
1964
1965SC/07 Eximstats: removed tabs and trailing whitespace.
1966
1005d00e
TK
1967TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1968
1969TK/06 MBOX spool code: Add real "From " MBOX separator line
1970 so the .eml file is really in mbox format (even though
1971 most programs do not really care). Patch from Alex Miller.
1972
1973TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1974 The latter is generated from $received_to and is only set if the
1975 message has one envelope recipient. SA can use these headers,
1976 obviously out-of-the-box. Patch from Alex Miller.
1977
9b4768fa
PH
1978PH/08 The ${def test on a variable was returning false if the variable's
1979 value was "0", contrary to what the specification has always said!
1980 The result should be true unless the variable is empty.
1981
1982PH/09 The syntax error of a character other than { following "${if
1983 def:variable_name" (after optional whitespace) was not being diagnosed.
1984 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1985 accidental colon was present, for example, could give incorrect results.
1986
0d7eb84a
PH
1987PH/10 Tidied the code in a number of places where the st_size field of a stat()
1988 result is used (not including appendfile, where other changes are about
1989 to be made).
1990
1991PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1992 This involved changing a lot of size variables from int to off_t. It
1993 should work with maildirs and everything.
1994
40727bee
TK
1995TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1996 spamd dying while we are connected to it.
1997
554d2369
TF
1998TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
1999 <jgh@wizmail.org>
2000
1f922db1
PH
2001PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2002 function for BDB 4.3.
2003
ef213c3b
PH
2004PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2005
8ac170f3
PH
2006PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2007 the sources for PCRE have been re-arranged and more files are now
2008 involved.
2009
b1c749bb
PH
2010PH/15 The code I had for printing potentially long long variables in PH/11
2011 above was not the best (it lost precision). The length of off_t variables
2012 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2013 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2014 to be "long long int" or "long int". This is needed for the internal
2015 formatting function string_vformat().
b1c749bb 2016
4aac9b49
PH
2017PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2018 the configuration file to be ":syslog", then the script "guesses" where
2019 the logs files are, rather than using the compiled in default. In our
2020 case the guess is not the same as the compiled default, so the script
2021 suddenly stopped working when I started to use syslog. The patch checks
2022 to see if log_file_path is "". If so, it attempts to read it from exim
2023 with no configuration file to get the compiled in version, before it
2024 falls back to the previous guessing code."
2025
294520c8
TK
2026TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2027 implementing BATV in an Exim configuration. See NewStuff for the gory
2028 details.
2029
5bd022fe
PH
2030PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2031 Makefile that are specific to HP-UX.
2032
90e9ce59
PH
2033PH/18 If the "use_postmaster" option was set for a recipient callout together
2034 with the "random" option, the postmaster address was used as the MAIL
2035 FROM address for the random test, but not for the subsequent recipient
2036 test. It is now used for both.
2037
5ea81592
PH
2038PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2039 patch removes a few documentation additions to RFC 3028, because the
2040 latest draft now contains them. It adds the new en;ascii-case comparator
2041 and a new error check for 8bit text in MIME parts. Comparator and
2042 require names are now matched exactly. I enabled the subaddress
2043 extension, but it is not well tested yet (read: it works for me)."
2044
c6c2dc1d
PH
2045PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2046 rework some of the code of TK/09 above to avoid the hardwired use of
2047 "%lld" and "long long". Replaced the call to snprintf() with a call to
2048 string_vformat().
2049
fffffe4c
PH
2050PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2051 records point to non-existent hosts", "retry timeout exceeded", and
2052 "retry time not reached for any host after a long failure period".
ca02eafb 2053
9a26b6b2
PH
2054PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2055 experimental DomainKeys support:
2056
2057 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2058 (2) On an error such as an illegally used "control", the wrong name for
2059 the control was given.
2060
2061 These problems did NOT occur unless DomainKeys support was compiled.
2062
4aee0225
PH
2063PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2064
32d668a5
PH
2065PH/24 Added ${if match_ip condition.
2066
8187c3f3
PH
2067PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2068 databases so that it will be absolutely obvious if a crash occurs in the
2069 DB library. This is a regular occurrence (often caused by mis-matched
2070 db.h files).
2071
ff790e47 2072PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2073 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2074 picked up on a user's system that detects such things. There doesn't seem
2075 to be a gcc warning option for this - only an attribute that has to be
2076 put on the function's prototype. It seems that in Fedora Core 4 they have
2077 set this on a number of new functions. No doubt there will be more in due
2078 course.
ff790e47 2079
5417f6d1
PH
2080PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2081 specify a transport. However, if an address that was verified by such a
2082 router was the subject of a callout, Exim crashed because it tried to
2083 read the rcpt_include_affixes from the non-existent transport. Now it
2084 just assumes that the setting of that option is false. This bug was
2085 introduced by 4.51/PH/31.
2086
59cf8544
PH
2087PH/28 Changed -d+all to exclude +memory, because that information is very
2088 rarely of interest, but it makes the output a lot bigger. People tend to
2089 do -d+all out of habit.
2090
e7ad8a65
PH
2091PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2092 code in os-type was giving problems when libc.so lives in lib64, like on
2093 x86_64 Fedora Core.
2094
ade42478
PH
2095PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2096 aren't the modern standard, and it seems that some systems' include files
2097 don't always have them. Exim was already checking for some of the newer
2098 ones like T_AAAA, and defining it itself. I've added checks for all the
2099 record types that Exim uses.
2100
182ad5cf
PH
2101PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2102 not automatically generating a new one, as it is supposed to. This
2103 prevented TLS from working. If the file did exist, but contained invalid
2104 data, a new version was generated, as expected. It was only the case of a
2105 non-existent file that was broken.
2106
b0d9fc80
TK
2107TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2108 with a change in libdomainkeys > 0.64.
2109
2110TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2111 from DNS. If the selector record carries the flag, it now has
2112 precedence over the domain-wide flag.
2113
2114TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2115
47c7a64a
PH
2116PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2117 the use of a port name that isn't defined in /etc/services) occurred, the
2118 message was deferred as in a normal delivery, and thus remained on the
2119 spool, instead of being failed because of the mua_wrapper setting. This
2120 is now fixed, and I tidied up some of the mua_wrapper messages at the
2121 same time.
2122
a388bce4
SC
2123SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2124 the messages in a hash of arrays rather than using individual hashes.
2125 This is a bit cleaner and results in dramatic memory savings, albeit
2126 at a slight CPU cost.
2127
2128SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2129 as requested by Marc Sherman.
2130
2131SC/10 Eximstats: added histograms for user specified patterns as requested
2132 by Marc Sherman.
2133
0793e4ed
SC
2134SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2135
c58b88df
PH
2136PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2137 fopen() in the content-scanning modules that did not already have it.
2138
e7ad8a65 2139
7982096b
PH
2140Exim version 4.51
2141-----------------
2142
1a46a8c5
PH
2143TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2144 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2145
2f079f46 2146TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2147
2148TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2149
2150PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2151 to test Sieve filters that use "vacation".
2152
2153PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2154 that changes the way the GnuTLS parameters are stored in the cache file.
2155 The new format can be generated externally. For backward compatibility,
2156 if the data in the cache doesn't make sense, Exim assumes it has read an
2157 old-format file, and it generates new data and writes a new file. This
2158 means that you can't go back to an older release without removing the
2159 file.
2160
2161PH/03 A redirect router that has both "unseen" and "one_time" set does not
2162 work if there are any delivery delays because "one_time" forces the
2163 parent to be marked "delivered", so its unseen clone is never tried
2164 again. For this reason, Exim now forbids the simultaneous setting of
2165 these two options.
2166
2167PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2168 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2169 entry if you want to know the details. The fix, however, neglected to
2170 consider the case when local delivery batching is involved. The test for
2171 "previously delivered" was not happening when checking to see if an
2172 address could be batched with a previous (undelivered) one; under
2173 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2174 address.
1a46a8c5
PH
2175
2176PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2177 in its include files, and this causes problems building Exim.
2178
2179PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2180 header_syntax) but Exim was just ignoring anything given after a slash.
2181 In particular, this caused confusion with an attempt to use "verify =
2182 reverse_host_lookup/defer_ok". An error is now given when options are
2183 supplied for verify items that do not have them. (Maybe reverse_host_
2184 lookup should have a defer_ok option, but that's a different point.)
2185
2186PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2187 defined by RFC 821) to 2048, because there were problems with some AUTH
2188 commands, and RFC 1869 says the size should be increased for extended
2189 SMTP commands that take arguments.
2190
2191PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2192 Finch).
2193
2194PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2195 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2196
49c2d5ea
PH
2197PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2198 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2199 whatever). Otherwise the password may appear in the log. Following change
2200 PH/42 below, there is no longer a chance of it appearing in a bounce
2201 message.
49c2d5ea 2202
bf759a8b
PH
2203PH/11 Installed exipick version 20050225.0 from John Jetmore.
2204
83364d30
PH
2205PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2206 of its addresses was ever tried. (Bugzilla bug #2.)
2207
7999bbd7
PH
2208PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2209 the result incorrectly in the debug output. (It correctly added a newline
2210 to what was transported.)
2211
7dbf77c9
PH
2212TF/01 Added $received_time.
2213
74e0617f
PH
2214PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2215 commented out examples of how to interface to a virus scanner and to
2216 SpamAssassin. Also added commented examples of av_scanner and
2217 spamd_address settings.
2218
2f079f46
PH
2219PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2220 and controls are allowed in which ACLs. There were a couple of minor
2221 errors. Some of the entries in the conditions table (which is a table of
2222 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2223 negation of where the condition IS allowed.
2224
8c841523
PH
2225PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2226
7766a4f0
PH
2227PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2228 header file does not have a version number, so I've had to invent a new
2229 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2230 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2231 radiusclient), but it was contributed by a Radius user.
2232
8b417f2c
PH
2233PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2234 files or directories, for OpenSSL.
2235
901f42cb
PH
2236PH/19 When an Exim process that is running as root has to create an Exim log
2237 file, it does so in a subprocess that runs as exim:exim so as to get the
2238 ownership right at creation (otherwise, other Exim processes might see
2239 the file with the wrong ownership). There was no test for failure of this
2240 fork() call, which would lead to the process getting stuck as it waited
2241 for a non-existent subprocess. Forks do occasionally fail when resources
2242 run out. I reviewed all the other calls to fork(); they all seem to check
2243 for failure.
2244
f9b9210e
PH
2245PH/20 When checking for unexpected SMTP input at connect time (before writing
2246 the banner), Exim was not dealing correctly with a non-positive return
2247 from the read() function. If the client had disconnected by this time,
2248 the result was a log entry for a synchronization error with an empty
2249 string after "input=" when read() returned zero. If read() returned -1
2250 (an event I could not check), uninitialized data bytes were printed.
2251 There were reports of junk text (parts of files, etc) appearing after
2252 "input=".
2253
54cdb463
PH
2254PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2255
cf00dad6
PH
2256PH/22 Added support for macro redefinition, and (re)definition in between
2257 driver and ACL definitions.
2258
acb1b346
PH
2259PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2260 forgetting to use the resulting value; it was using the unexpanded value.
2261
c5ddb310
PH
2262PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2263 hadn't been configured. The fix is from Juergen Kreileder, who
2264 understands it better than I do:
2265
2266 "Here's what I see happening with three configured cyrus_sasl
2267 authenticators configured (plain, login, cram-md5):
2268
2269 On startup auth_cyrus_sasl_init() gets called for each of these.
2270 This means three calls to sasl_listmech() without a specified mech_list.
2271 => SASL tests which mechs of all available mechs actually work
2272 => three warnings about OTP not working
2273 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2274
2275 With the patch, sasl_listmech() also gets called three times. But now
2276 SASL's mech_list option is set to the server_mech specified in the the
2277 authenticator. Or in other words, the answer from sasl_listmech()
2278 gets limited to just the mech you're testing for (which is different
2279 for each call.)
2280 => the return list contains just 'plain' or 'login', 'cram-md5' or
2281 nothing depending on the value of ob->server_mech.
2282
2283 I've just tested the patch: Authentication still works fine,
2284 unavailable mechs specified in the exim configuration are still
2285 caught, and the auth.log warnings about OTP are gone."
2286
31619da6
PH
2287PH/25 When debugging is enabled, the contents of the command line are added
2288 to the debugging output, even when log_selector=+arguments is not
2289 specified.
2290
bebaf0fc
PH
2291PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2292 answer is "GNU", and only if the return is "GNU/something" is the answer
2293 "Linux".
2294
475fe28a
PH
2295PH/27 $acl_verify_message is now set immediately after the failure of a
2296 verification in an ACL, and so is available in subsequent modifiers. In
2297 particular, the message can be preserved by coding like this:
2298
2299 warn !verify = sender
2300 set acl_m0 = $acl_verify_message
2301
2302 Previously, $acl_verify_message was set only while expanding "message"
2303 and "log_message" when a very denied access.
2304
7e8bec7a
PH
2305PH/28 Modified OS/os.c-Linux with
2306
2307 -#ifndef OS_LOAD_AVERAGE
2308 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2309
2310 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2311 nomenclature these days.)
2312
e4a89c47
PH
2313PH/29 Installed patch from the Sieve maintainer that adds the options
2314 sieve_useraddress and sieve_subaddress to the redirect router.
2315
5ca2a9a1
PH
2316PH/30 In these circumstances:
2317 . Two addresses routed to the same list of hosts;
2318 . First host does not offer TLS;
2319 . First host accepts first address;
2320 . First host gives temporary error to second address;
2321 . Second host offers TLS and a TLS session is established;
2322 . Second host accepts second address.
2323 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2324 and peerdn, if requested) that were in fact used only for the second
2325 address.
7e8bec7a 2326
c688b954
PH
2327PH/31 When doing a callout as part of verifying an address, Exim was not paying
2328 attention to any local part prefix or suffix that was matched by the
2329 router that accepted the address. It now behaves in the same way as it
2330 does for delivery: the affixes are removed from the local part unless
2331 rcpt_include_affixes is set on the transport.
2332
fed77020
PH
2333PH/32 Add the sender address, as F=<...>, to the log line when logging a
2334 timeout during the DATA phase of an incoming message.
2335
7fe1560f
PH
2336PH/33 Sieve envelope tests were broken for match types other than :is. I have
2337 applied a patch sanctioned by the Sieve maintainer.
c688b954 2338
ebb6e6d5
PH
2339PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2340 the uid or gid is negative. A case of a negative gid caused this to be
2341 noticed. The fix allows for either to be negative.
2342
9c4e8f60
PH
2343PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2344 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2345 overlooked.
2346
2347PH/36 The change PH/12 above was broken. Fixed it.
2348
d7174846
PH
2349PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2350 the grounds that routing the same address twice would always produce the
2351 same answer. This might have been true once, but it is certainly no
2352 longer true now. Routing a child address may depend on the previous
2353 routing that produced that child. Some complicated redirection strategies
2354 went wrong when messages had multiple recipients, and made Exim's
2355 behaviour dependent on the order in which the addresses were given.
2356
2357 I have moved the duplicate checking until after the routing is complete.
2358 Exim scans the addresses that are assigned to local and remote
2359 transports, and removes any duplicates. This means that more work will be
2360 done, as duplicates will always all be routed, but duplicates are
2361 presumably rare, so I don't expect this is of any significance.
2362
2363 For deliveries to pipes, files, and autoreplies, the duplicate checking
2364 still happens during the routing process, since they are not going to be
2365 routed further.
2366
cfe75fc3
PH
2367PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2368 It corrects a timeout issue with spamd. This is Ian's comment: "The
2369 background is that sometimes spamd either never reads data from a
2370 connection it has accepted, or it never writes response data. The exiscan
2371 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2372 blindly assumes that writes won't block so it may never time out."
2373
be22d70e
PH
2374PH/39 Allow G after quota size as well as K and M.
2375
0612b098
PH
2376PH/40 The value set for $authenticated_id in an authenticator may not contain
2377 binary zeroes or newlines because the value is written to log lines and
2378 to spool files. There was no check on this. Now the value is run through
2379 the string_printing() function so that such characters are converted to
2380 printable escape sequences.
2381
2e0c1448
PH
2382PH/41 $message_linecount is a new variable that contains the total number of
2383 lines in the message. Compare $body_linecount, which is the count for the
2384 body only.
2385
447d236c
PH
2386PH/42 Exim no longer gives details of delivery errors for specific addresses in
2387 bounce and delay warning messages, except in certain special cases, which
2388 are as follows:
2389
2390 (a) An SMTP error message from a remote host;
2391 (b) A message specified in a :fail: redirection;
2392 (c) A message specified in a "fail" command in a system filter;
2393 (d) A message specified in a FAIL return from the queryprogram router;
2394 (e) A message specified by the cannot_route_message router option.
2395
2396 In these cases only, Exim does include the error details in bounce and
2397 warning messages. There are also a few cases where bland messages such
2398 as "unrouteable address" or "local delivery error" are given.
2399
d20976dc
PH
2400PH/43 $value is now also set for the "else" part of a ${run expansion.
2401
f656d135
PH
2402PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2403 being worked on, but at least Exim now implements the latest version to
2404 play with."
2405
2e2a30b4
PH
2406PH/45 In a pipe transport, although a timeout while waiting for the pipe
2407 process to complete was treated as a delivery failure, a timeout while
2408 writing the message to the pipe was logged, but erroneously treated as a
2409 successful delivery. Such timeouts include transport filter timeouts. For
2410 consistency with the overall process timeout, these timeouts are now
2411 treated as errors, giving rise to delivery failures by default. However,
2412 there is now a new Boolean option for the pipe transport called
2413 timeout_defer, which, if set TRUE, converts the failures into defers for
2414 both kinds of timeout. A transport filter timeout is now identified in
2415 the log output.
2416
9176e9f0
PH
2417PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2418 systems where "make" and "gmake" are different, calling "gmake" at top
2419 level broke things. I've arranged for the value of $(MAKE) to be passed
2420 from the Makefile to this script so that it can call the same version of
2421 "make".
2422
7982096b 2423
bbe902f0
PH
2424A note about Exim versions 4.44 and 4.50
2425----------------------------------------
2426
2427Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2428changes of various kinds. As a consequence, a big documentation update was
2429needed. This delayed the release for rather longer than seemed good, especially
2430in the light of a couple of (minor) security issues. Therefore, the changes
2431that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2432release. So 4.44 and 4.50 are in effect two different branches that both start
2433from 4.43.
2434
2435I have left the 4.50 change log unchanged; it contains all the changes since
24364.43. The change log for 4.44 is below; many of its items are identical to
2437those for 4.50. This seems to be the most sensible way to preserve the
2438historical information.
2439
2440
f7b63901 2441Exim version 4.50
495ae4b0
PH
2442-----------------
2443
5fe762f6
PH
2444 1. Minor wording change to the doc/README.SIEVE file.
2445
139059f6 2446 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2447 computation of the current number of files was incorrect.
495ae4b0 2448
7086e875
PH
2449 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2450 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2451 place.
2452
35af9f61
PH
2453 4. Give more explanation in the error message when the command for a transport
2454 filter fails to execute.
2455
b668c215
PH
2456 5. There are several places where Exim runs a non-Exim command in a
2457 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2458 was being done only for the command run by the queryprogram router. It is
2459 now done for all such subprocesses. The other cases are: ${run, transport
2460 filters, and the commands run by the lmtp and pipe transports.
2461
a494b1e1
PH
2462 6. Added CONFIGURE_GROUP build-time option.
2463
2464 7. Some older OS have a limit of 256 on the maximum number of file
2465 descriptors. Exim was using setrlimit() to set 1000 as a large value
2466 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2467 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2468
c5fcb476
PH
2469 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2470 was an oversight, and furthermore, ever since the addition of extra
2471 controls (e.g. 4.43/32), the checks on when to allow different forms of
2472 "control" were broken. There should now be diagnostics for all cases when a
2473 control that does not make sense is encountered.
2474
69358f02
PH
2475 9. Added the /retain_sender option to "control=submission".
2476
5be20824
PH
247710. $recipients is now available in the predata ACL (oversight).
2478
eb2c0248
PH
247911. Tidy the search cache before the fork to do a delivery from a message
2480 received from the command line. Otherwise the child will trigger a lookup
2481 failure and thereby defer the delivery if it tries to use (for example) a
2482 cached ldap connection that the parent has called unbind on.
2483
2a3eea10
PH
248412. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2485 of $address_data from the recipient verification was clobbered by the
2486 sender verification.
2487
248813. The value of address_data from a sender verification is now available in
2489 $sender_address_data in subsequent conditions in the ACL statement.
2490
23c7ff99
PH
249114. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2492
4deaf07d
PH
249315. Added a new option "connect=<time>" to callout options, to set a different
2494 connection timeout.
2495
926e1192
PH
249616. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2497 was its contents. (It was OK if the option was not defined at all.)
2498
650edc6f
PH
249917. A "Completed" log line is now written for messages that are removed from
2500 the spool by the -Mrm option.
2501
2c7db3f5
PH
250218. New variables $sender_verify_failure and $recipient_verify_failure contain
2503 information about exactly what failed.
2504
3d235903
PH
250519. Added -dd to debug only the daemon process.
2506
7c7ad977
PH
250720. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2508 handles timeouts, both on the server side and network timeouts. Renamed the
2509 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2510
981756db
PH
251121. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2512 It is now set to "smtps".
2513
d4eb88df
PH
251422. $host_address is now set to the target address during the checking of
2515 ignore_target_hosts.
2516
251723. When checking ignore_target_hosts for an ipliteral router, no host name was
2518 being passed; this would have caused $sender_host_name to have been used if
2519 matching the list had actually called for a host name (not very likely,
2520 since this list is usually IP addresses). A host name is now passed as
2521 "[x.x.x.x]".
2522
7d468ab8
PH
252324. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2524 code that specifies a non-restarting handler (typically sigaction() in
2525 modern systems) in an attempt to fix a rare and obscure crash bug.
2526
252725. Narrowed the window for a race in the daemon that could cause it to ignore
2528 SIGCHLD signals. This is not a major problem, because they are used only to
2529 wake it up if nothing else does.
2530
62c0818f
PH
253126. A malformed maildirsize file could cause Exim to calculate negative values
2532 for the mailbox size or file count. Odd effects could occur as a result.
2533 The maildirsize information is now recalculated if the size or filecount
2534 end up negative.
2535
26034054
PH
253627. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2537 support for a long time. Removed HAVE_SYS_VFS_H.
2538
af66f652
PH
253928. Installed the latest version of exipick from John Jetmore.
2540
90af77f4
PH
254129. In an address list, if the pattern was not a regular expression, an empty
2542 subject address (from a bounce message) matched only if the pattern was an
2543 empty string. Non-empty patterns were not even tested. This was the wrong
2544 because it is perfectly reasonable to use an empty address as part of a
2545 database query. An empty address is now tested by patterns that are
2546 lookups. However, all the other forms of pattern expect the subject to
2547 contain a local part and a domain, and therefore, for them, an empty
2548 address still always fails if the pattern is not itself empty.
2549
d8ef3577
PH
255030. Exim went into a mad DNS loop when attempting to do a callout where the
2551 host was specified on an smtp transport, and looking it up yielded more
2552 than one IP address.
2553
5cb8cbc6
PH
255431. Re-factored the code for checking spool and log partition space into a
2555 function that finds that data and another that does the check. The former
2556 is then used to implement four new variables: $spool_space, $log_space,
2557 $spool_inodes, and $log_inodes.
2558
14702f5b
PH
255932. The RFC2047 encoding function was originally intended for short strings
2560 such as real names; it was not keeping to the 75-character limit for
2561 encoded words that the RFC imposes. It now respects the limit, and
2562 generates multiple encoded words if necessary. To be on the safe side, I
2563 have increased the buffer size for the ${rfc2047: expansion operator from
2564 1024 to 2048 bytes.
2565
063b1e99
PH
256633. It is now permitted to omit both strings after an "if" condition; if the
2567 condition is true, the result is "true". As before, when the second string
2568 is omitted, a false condition yields an empty string. This makes it less
2569 cumbersome to write custom ACL and router conditions.
2570
652e1b65
PH
257134. Failure to deliver a bounce message always caused it to be frozen, even if
2572 there was an errors_to setting on the router. The errors_to setting is now
2573 respected.
2574
6f0c9a4f
PH
257535. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2576 canonical form (fully expanded) before being placed in
2577 $sender_host_address.
2578
33397d19
PH
257936. The table in the code that translates DNS record types into text (T_A to
2580 "A" for instance) was missing entries for NS and CNAME. It is just possible
2581 that this could have caused confusion if both these types were looked up
2582 for the same domain, because the text type is used as part of Exim's
2583 per-process caching. But the chance of anyone hitting this buglet seems
2584 very small.
2585
7bb56e1f
PH
258637. The dnsdb lookup has been extended in a number of ways.
2587
2588 (1) There is a new type, "zns", which walks up the domain tree until it
2589 finds some nameserver records. It should be used with care.
2590
ea3bc19b
PH
2591 (2) There is a new type, "mxh", which is like "mx" except that it returns
2592 just the host names, not the priorities.
2593
2594 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2595 looked up. The behaviour when one of the lookups defers can be
2596 controlled by a keyword.
7bb56e1f 2597
ea3bc19b 2598 (4) It is now possible to specify the separator character for use when
7bb56e1f 2599 multiple records are returned.
33397d19 2600
0bcb2a0e
PH
260138. The dnslists ACL condition has been extended: it is now possible to supply
2602 a list of IP addresses and/or domains to be looked up in a particular DNS
2603 domain.
2604
2ac0e484
PH
260539. Added log_selector=+queue_time_overall.
2606
4e1fde53
PH
260740. When running the queue in the test harness, wait just a tad after forking a
2608 delivery process, to get repeatability of debugging output.
2609
de365ded
PH
261041. Include certificate and key file names in error message when GnuTLS fails
2611 to set them up, because the GnuTLS error message doesn't include the name
2612 of the failing file when there is a problem reading it.
2613
f05da2e8
PH
261442. Allow both -bf and -bF in the same test run.
2615
d6453af2
PH
261643. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2617
f7b63901
PH
261844. The "Exiscan patch" is now merged into the mainline Exim source.
2619
262045. Sometimes the final signoff response after QUIT could fail to get
2621 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2622 < 0 before doing a fflush(). This bug looks as though it goes back to the
2623 introduction of TLS in release 3.20, but "sometimes" must have been rare
2624 because the tests only now provoked it.
2625
a444213a
PH
262646. Reset the locale to "C" after calling embedded Perl, in case it was changed
2627 (this can affect the format of dates).
2628
0ec020ea
PH
262947. exim_tidydb, when checking for the continued existence of a message for
2630 which it has found a message-specific retry record, was not finding
2631 messages that were in split spool directories. Consequently, it was
2632 deleting retry records that should have stayed in existence.
2633
b1206957
PH
263448. Steve fixed some bugs in eximstats.
2635
263649. The SPA authentication driver was not abandoning authentication and moving
2637 on to the next authenticator when an expansion was forced to fail,
2638 contradicting the general specification for all authenticators. Instead it
2639 was generating a temporary error. It now behaves as specified.
2640
26dd5a95
PH
264150. The default ordering of permitted cipher suites for GnuTLS was pessimal
2642 (the order specifies the preference for clients). The order is now AES256,
2643 AES128, 3DES, ARCFOUR128.
2644
343b2385
PH
264551. Small patch to Sieve code - explicitly set From: when generating an
2646 autoreply.
2647
1c5466b9
PH
264852. Exim crashed if a remote delivery caused a very long error message to be
2649 recorded - for instance if somebody sent an entire SpamAssassin report back
2650 as a large number of 550 error lines. This bug was coincidentally fixed by
2651 increasing the size of one of Exim's internal buffers (big_buffer) that
2652 happened as part of the Exiscan merge. However, to be on the safe side, I
2653 have made the code more robust (and fixed the comments that describe what
2654 is going on).
2655
55ee9ee3
PH
265653. Now that there can be additional text after "Completed" in log lines (if
2657 the queue_time_overall log selector is set), a one-byte patch to exigrep
2658 was needed to allow it to recognize "Completed" as not the last thing in
2659 the line.
2660
d38f8232
PH
266154. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2662 patch that reportedly fixes this has been added. I am not expert enough to
2663 create a test for it. This is what the patch creator wrote:
2664
2665 "I found a little strange behaviour of ldap code when working with
2666 Windows 2003 AD Domain, where users was placed in more than one
2667 Organization Units. When I tried to give exim partial DN, the exit code
2668 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2669 But simultaneously result of request was absolutely normal ldap result,
2670 so I produce this patch..."
2671
3295e65b
PH
2672 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2673 REFERENCE, so I have modified the code to exclude the patch when that macro
2674 is not defined.
2675
7102e136
PH
267655. Some experimental protocols are using DNS PTR records for new purposes. The
2677 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2678 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2679 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2680 CAN-2005-0021
7102e136 2681
3ca0ba97
PH
268256. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2683
c2bcbe20
PH
268457. Double the size of the debug message buffer (to 2048) so that more of very
2685 long debug lines gets shown.
2686
18ce445d
PH
268758. The exicyclog utility now does better if the number of log files to keep
2688 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2689
1f5b4c3d
PH
269059. Two changes related to the smtp_active_hostname option:
2691
2692 (1) $smtp_active_hostname is now available as a variable.
2693 (2) The default for smtp_banner uses $smtp_active_hostname instead
2694 of $primary_hostname.
2695
b975ba52
PH
269660. The host_aton() function is supposed to be passed a string that is known
2697 to be a valid IP address. However, in the case of IPv6 addresses, it was
2698 not checking this. This is a hostage to fortune. Exim now panics and dies
2699 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2700 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2701 components; fortuitously, this particular loophole had already been fixed
2702 by change 4.50/55 above.
2703
2704 If there are any other similar loopholes, the new check in host_aton()
2705 itself should stop them being exploited. The report I received stated that
2706 data on the command line could provoke the exploit when Exim was running as
2707 exim, but did not say which command line option was involved. All I could
2708 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2709 running as the user.
ea3a6f44 2710 CAN-2005-0021
85b87bc2
PH
2711
271261. There was a buffer overflow vulnerability in the SPA authentication code
2713 (which came originally from the Samba project). I have added a test to the
2714 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2715 CAN-2005-0022
b975ba52 2716
17ffcae7
PH
271762. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2718 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2719
d95f9fdb
PH
272063. The daemon start-up calls getloadavg() while still root for those OS that
2721 need the first call to be done as root, but it missed one case: when
2722 deliver_queue_load_max is set with deliver_drop_privilege. This is
2723 necessary for the benefit of the queue runner, because there is no re-exec
2724 when deliver_drop_privilege is set.
2725
86b8287f
PH
272664. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2727 This has been fixed.
2728
60dc5e56
PH
272965. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2730 was in use, was not putting the data itself into the right store pool;
2731 consequently, it could be overwritten for a subsequent message in the same
2732 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2733 the caching.)
2734
533244af
PH
273566. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2736
a5a28604
PH
273767. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2738 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2739 the function were treating the return as a boolean value, which happened to
2740 work because 0=false and not-0=true, but is not correct code.
2741
7e634d24
PH
274268. The host_aton() function was not handling scoped IPv6 addresses (those
2743 with, for example, "%eth0" on the end) correctly.
2744
3e11c26b
PH
274569. Fixed some compiler warnings in acl.c for the bitmaps specified with
2746 negated items (that is, ~something) in unsigned ints. Some compilers
2747 apparently mutter when there is no cast.
2748
6729cf78
PH
274970. If an address verification called from an ACL failed, and did not produce a
2750 user-specific message (i.e. there was only a "system" message), nothing was
2751 put in $acl_verify_message. In this situation, it now puts the system
2752 message there.
2753
00f00ca5
PH
275471. Change 4.23/11 added synchronization checking at the start of an SMTP
2755 session; change 4.31/43 added the unwanted input to the log line - except
2756 that it did not do this in the start of session case. It now does.
2757
c9bdd01c
PH
275872. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2759 This is wrong and can cause the other end to generate a synchronization
2760 error if it is another Exim or anything else that does the synchronization
2761 check. A QUIT command is no longer sent after a timeout.
2762
d43194df
PH
276373. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2764 during host lookups.
2765
fe5b5d0b
PH
276674. The defer_ok option of callout verification was not working if it was used
2767 when verifying addresses in header lines, that is, for this case:
2768
2769 verify = header_sender/callout=defer_ok
2770
76a2d7ba
PH
277175. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2772 those file descriptors could be used for SMTP connections. If anything
2773 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2774 could be sent to the SMTP client, causing chaos. The daemon now opens
2775 stdin, stdout, and stderr to /dev/null when it puts itself into the
2776 background.
2777
277876. Arrange for output from Perl's "warn" command to be written to Exim's main
2779 log by default. The user can override this with suitable Perl magic.
2780
04f7d5b9
PH
278177. The use of log_message on a "discard" ACL verb, which is supposed to add to
2782 the log message when discard triggers, was not working for the DATA ACL or
2783 for the non-SMTP ACL.
2784
bc60667e
PH
278578. Error message wording change in sieve.c.
2786
bb6e88ff
PH
278779. If smtp_accept_max_per_host was set, the number of connections could be
2788 restricted to fewer than expected, because the daemon was trying to set up
2789 a new connection before checking whether the processes handling previous
2790 connections had finished. The check for completed processes is now done
2791 earlier. On busy systems, this bug wouldn't be noticed because something
2792 else would have woken the daemon, and it would have reaped the completed
2793 process earlier.
2794
1e70f85b
PH
279580. If a message was submitted locally by a user whose login name contained one
2796 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2797 It caused a spool format error. I have fixed the spool reading code. A
2798 related problem was that the "from" clause in the Received: line became
2799 illegal because of the space(s). It is now covered by ${quote_local_part.
2800
280181. Included the latest eximstats from Steve (adds average sizes to HTML Top
2802 tables).
2803
4e01f9d6
PH
280482. Updated OS/Makefile-AIX as per message from Mike Meredith.
2805
1ee1cef2
PH
280683. Patch from Sieve maintainer to fix unterminated string problem in
2807 "vacation" handling.
2808
6e2b4ccc
PH
280984. Some minor changes to the Linux configuration files to help with other
2810 OS variants using glibc.
2811
8e669ac1
PH
281285. One more patch for Sieve to update vacation handling to latest spec.
2813
495ae4b0 2814
bbe902f0
PH
2815----------------------------------------------------
2816See the note above about the 4.44 and 4.50 releases.
2817----------------------------------------------------
2818
2819
2820Exim version 4.44
2821-----------------
2822
2823 1. Change 4.43/35 introduced a bug that caused file counts to be
2824 incorrectly computed when quota_filecount was set in an appendfile
2825 transport
2826
2827 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2828 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2829 place.
2830
2831 3. Give more explanation in the error message when the command for a transport
2832 filter fails to execute.
2833
2834 4. There are several places where Exim runs a non-Exim command in a
2835 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2836 was being done only for the command run by the queryprogram router. It is
2837 now done for all such subprocesses. The other cases are: ${run, transport
2838 filters, and the commands run by the lmtp and pipe transports.
2839
2840 5. Some older OS have a limit of 256 on the maximum number of file
2841 descriptors. Exim was using setrlimit() to set 1000 as a large value
2842 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2843 systems. I've change it so that if it can't get 1000, it tries for 256.
2844
2845 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2846 was an oversight, and furthermore, ever since the addition of extra
2847 controls (e.g. 4.43/32), the checks on when to allow different forms of
2848 "control" were broken. There should now be diagnostics for all cases when a
2849 control that does not make sense is encountered.
2850
2851 7. $recipients is now available in the predata ACL (oversight).
2852
2853 8. Tidy the search cache before the fork to do a delivery from a message
2854 received from the command line. Otherwise the child will trigger a lookup
2855 failure and thereby defer the delivery if it tries to use (for example) a
2856 cached ldap connection that the parent has called unbind on.
2857
2858 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2859 of $address_data from the recipient verification was clobbered by the
2860 sender verification.
2861
286210. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2863 was its contents. (It was OK if the option was not defined at all.)
2864
286511. A "Completed" log line is now written for messages that are removed from
2866 the spool by the -Mrm option.
2867
286812. $host_address is now set to the target address during the checking of
2869 ignore_target_hosts.
2870
287113. When checking ignore_target_hosts for an ipliteral router, no host name was
2872 being passed; this would have caused $sender_host_name to have been used if
2873 matching the list had actually called for a host name (not very likely,
2874 since this list is usually IP addresses). A host name is now passed as
2875 "[x.x.x.x]".
2876
287714. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2878 code that specifies a non-restarting handler (typically sigaction() in
2879 modern systems) in an attempt to fix a rare and obscure crash bug.
2880
288115. Narrowed the window for a race in the daemon that could cause it to ignore
2882 SIGCHLD signals. This is not a major problem, because they are used only to
2883 wake it up if nothing else does.
2884
288516. A malformed maildirsize file could cause Exim to calculate negative values
2886 for the mailbox size or file count. Odd effects could occur as a result.
2887 The maildirsize information is now recalculated if the size or filecount
2888 end up negative.
2889
289017. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2891 support for a long time. Removed HAVE_SYS_VFS_H.
2892
ea3a6f44 289318. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2894
289519. Allow an empty sender to be matched against a lookup in an address list.
2896 Previously the only cases considered were a regular expression, or an
2897 empty pattern.
2898
289920. Exim went into a mad DNS lookup loop when doing a callout where the
2900 host was specified on the transport, if the DNS lookup yielded more than
2901 one IP address.
2902
ea3a6f44
NM
290321. The RFC2047 encoding function was originally intended for short strings
2904 such as real names; it was not keeping to the 75-character limit for
2905 encoded words that the RFC imposes. It now respects the limit, and
2906 generates multiple encoded words if necessary. To be on the safe side, I
2907 have increased the buffer size for the ${rfc2047: expansion operator from
2908 1024 to 2048 bytes.
bbe902f0 2909
ea3a6f44
NM
291022. Failure to deliver a bounce message always caused it to be frozen, even if
2911 there was an errors_to setting on the router. The errors_to setting is now
2912 respected.
bbe902f0
PH
2913
291423. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2915 canonical form (fully expanded) before being placed in
2916 $sender_host_address.
2917
291824. Updated eximstats to version 1.33
2919
ea3a6f44
NM
292025. Include certificate and key file names in error message when GnuTLS fails
2921 to set them up, because the GnuTLS error message doesn't include the name
2922 of the failing file when there is a problem reading it.
bbe902f0
PH
2923
292426. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2925 As per change 25.
bbe902f0 2926
ea3a6f44
NM
292727. Reset the locale to "C" after calling embedded Perl, in case it was changed
2928 (this can affect the format of dates).
bbe902f0 2929
ea3a6f44
NM
293028. exim_tidydb, when checking for the continued existence of a message for
2931 which it has found a message-specific retry record, was not finding
2932 messages that were in split spool directories. Consequently, it was
2933 deleting retry records that should have stayed in existence.
bbe902f0
PH
2934
293529. eximstats updated to version 1.35
2936 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2937 1.35 - bugfix such that pie charts by volume are generated correctly
2938
ea3a6f44
NM
293930. The SPA authentication driver was not abandoning authentication and moving
2940 on to the next authenticator when an expansion was forced to fail,
2941 contradicting the general specification for all authenticators. Instead it
2942 was generating a temporary error. It now behaves as specified.
bbe902f0 2943
ea3a6f44
NM
294431. The default ordering of permitted cipher suites for GnuTLS was pessimal
2945 (the order specifies the preference for clients). The order is now AES256,
2946 AES128, 3DES, ARCFOUR128.
bbe902f0 2947
ea3a6f44
NM
294831. Small patch to Sieve code - explicitly set From: when generating an
2949 autoreply.
bbe902f0 2950
ea3a6f44
NM
295132. Exim crashed if a remote delivery caused a very long error message to be
2952 recorded - for instance if somebody sent an entire SpamAssassin report back
2953 as a large number of 550 error lines. This bug was coincidentally fixed by
2954 increasing the size of one of Exim's internal buffers (big_buffer) that
2955 happened as part of the Exiscan merge. However, to be on the safe side, I
2956 have made the code more robust (and fixed the comments that describe what
2957 is going on).
bbe902f0 2958
ea3a6f44
NM
295933. Some experimental protocols are using DNS PTR records for new purposes. The
2960 keys for these records are domain names, not reversed IP addresses. The
2961 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2962 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2963 CAN-2005-0021
2964
ea3a6f44
NM
296534. The host_aton() function is supposed to be passed a string that is known
2966 to be a valid IP address. However, in the case of IPv6 addresses, it was
2967 not checking this. This is a hostage to fortune. Exim now panics and dies
2968 if the condition is not met. A case was found where this could be provoked
2969 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2970 components; fortuitously, this particular loophole had already been fixed
2971 by change 4.50/55 or 4.44/33 above.
2972
2973 If there are any other similar loopholes, the new check in host_aton()
2974 itself should stop them being exploited. The report I received stated that
2975 data on the command line could provoke the exploit when Exim was running as
2976 exim, but did not say which command line option was involved. All I could
2977 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2978 running as the user.
bbe902f0
PH
2979 CAN-2005-0021
2980
ea3a6f44
NM
298135. There was a buffer overflow vulnerability in the SPA authentication code
2982 (which came originally from the Samba project). I have added a test to the
2983 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2984 CAN-2005-0022
2985
ea3a6f44
NM
298636. The daemon start-up calls getloadavg() while still root for those OS that
2987 need the first call to be done as root, but it missed one case: when
2988 deliver_queue_load_max is set with deliver_drop_privilege. This is
2989 necessary for the benefit of the queue runner, because there is no re-exec
2990 when deliver_drop_privilege is set.
bbe902f0 2991
ea3a6f44
NM
299237. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2993 was in use, was not putting the data itself into the right store pool;
2994 consequently, it could be overwritten for a subsequent message in the same
2995 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2996 the caching.)
bbe902f0 2997
ea3a6f44
NM
299838. Sometimes the final signoff response after QUIT could fail to get
2999 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3000 < 0 before doing a fflush(). This bug looks as though it goes back to the
3001 introduction of TLS in release 3.20, but "sometimes" must have been rare
3002 because the tests only now provoked it.
bbe902f0
PH
3003
3004
495ae4b0
PH
3005Exim version 4.43
3006-----------------
3007
3008 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3009 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3010 Now it returns an integer. A number of calls were still expecting a T/F
3011 return. Fortuitously, in all cases, the tests worked in OK situations,
3012 which is the norm. However, things would have gone wrong on any write
3013 failures on the smtp file descriptor. This function is used when sending
3014 messages over SMTP and also when doing verify callouts.
3015
3016 2. When Exim is called to do synchronous delivery of a locally submitted
3017 message (the -odf or -odi options), it no longer closes stderr before doing
3018 the delivery.
3019
3020 3. Implemented the mua_wrapper option.
3021
3022 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3023
3024 5. Implemented the functions header_remove(), header_testname(),
3025 header_add_at_position(), and receive_remove_recipient(), and exported them
3026 to local_scan().
3027
3028 6. If an ACL "warn" statement specified the addition of headers, Exim already
3029 inserted X-ACL-Warn: at the start if there was no header name. However, it
3030 was not making this test for the second and subsequent header lines if
3031 there were newlines in the string. This meant that an invalid header could
3032 be inserted if Exim was badly configured.
3033
3034 7. Allow an ACL "warn" statement to add header lines at the start or after all
3035 the Received: headers, as well as at the end.
3036
3037 8. Added the rcpt_4xx retry error code.
3038
3039 9. Added postmaster_mailfrom=xxx to callout verification option.
3040
304110. Added mailfrom=xxxx to the callout verification option, for verify=
3042 header_sender only.
3043
304411. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3045 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3046
304712. Inserted some casts to stop certain compilers warning when using pointer
3048 differences as field lengths or precisions in printf-type calls (mostly
3049 affecting debugging statements).
3050
305113. Added optional readline() support for -be (dynamically loaded).
3052
305314. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3054 same clock tick as a message's arrival, so that its received time was the
3055 same as the "first fail" time on the retry record, and that message
3056 remained on the queue past the ultimate address timeout, every queue runner
3057 would try a delivery (because it was past the ultimate address timeout) but
3058 after another failure, the ultimate address timeout, which should have then
3059 bounced the address, did not kick in. This was a "< instead of <=" error;
3060 in most cases the first failure would have been in the next clock tick
3061 after the received time, and all would be well.
3062
306315. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3064 being recognized when the domain list was tested by the match_domain
3065 condition in an expansion string.
3066
306716. Added the ${str2b64: operator.
3068
306917. Exim was always calling setrlimit() to set a large limit for the number of
3070 processes, without checking whether the existing limit was already
3071 adequate. (It did check for the limit on file descriptors.) Furthermore,
3072 errors from getrlimit() and setrlimit() were being ignored. Now they are
3073 logged to the main and panic logs, but Exim does carry on, to try to do its
3074 job under whatever limits there are.
3075
307618. Imported PCRE 5.0.
3077
307819. Trivial typo in log message " temporarily refused connection" (the leading
3079 space).
3080
308120. If the log selector return_path_on_delivery was set and an address was
3082 redirected to /dev/null, the delivery process crashed because it assumed
3083 that a return path would always be set for a "successful" delivery. In this
3084 case, the whole delivery is bypassed as an optimization, and therefore no
3085 return path is set.
3086
308721. Internal re-arrangement: the function for sending a challenge and reading
3088 a response while authentication was assuming a zero-terminated challenge
3089 string. It's now changed to take a pointer and a length, to allow for
3090 binary data in such strings.
3091
309222. Added the cyrus_sasl authenticator (code supplied by MBM).
3093
309423. Exim was not respecting finduser_retries when seeking the login of the
3095 uid under which it was called; it was always trying 10 times. (The default
3096 setting of finduser_retries is zero.) Also, it was sleeping after the final
3097 failure, which is pointless.
3098
309924. Implemented tls_on_connect_ports.
3100
310125. Implemented acl_smtp_predata.
3102
310326. If the domain in control=submission is set empty, Exim assumes that the
3104 authenticated id is a complete email address when it generates From: or
3105 Sender: header lines.
3106
310727. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3108 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3109 chown and chgrp in /bin and hostname in /usr/bin.
3110
311128. Exim was keeping the "process log" file open after each use, just as it
3112 does for the main log. This opens the possibility of it remaining open for
3113 long periods when the USR1 signal hits a daemon. Occasional processlog
3114 errors were reported, that could have been caused by this. Anyway, it seems
3115 much more sensible not to leave this file open at all, so that is what now
3116 happens.
3117
311829. The long-running daemon process does not normally write to the log once it
3119 has entered its main loop, and it closes the log before doing so. This is
3120 so that log files can straightforwardly be renamed and moved. However,
3121 there are a couple of unusual error situations where the daemon does write
3122 log entries, and I had neglected to close the log afterwards.
3123
312430. The text of an SMTP error response that was received during a remote
3125 delivery was being truncated at 512 bytes. This is too short for some of
3126 the long messages that one sometimes sees. I've increased the limit to
3127 1024.
3128
312931. It is now possible to make retry rules that apply only when a message has a
3130 specific sender, in particular, an empty sender.
3131
313232. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3133 it possible to be selective about when SMTP synchronization is enforced.
3134
313533. Added "control = caseful_local_part" and "control = "caselower_local_part".
3136
313732. Implemented hosts_connection_nolog.
3138
313933. Added an ACL for QUIT.
3140
314134. Setting "delay_warning=" to disable warnings was not working; it gave a
3142 syntax error.
3143
314435. Added mailbox_size and mailbox_filecount to appendfile.
3145
314636. Added control = no_multiline_responses to ACLs.
3147
314837. There was a bug in the logic of the code that waits for the clock to tick
3149 in the case where the clock went backwards by a substantial amount such
3150 that the microsecond fraction of "now" was more than the microsecond
3151 fraction of "then" (but the whole seconds number was less).
3152
315338. Added support for the libradius Radius client library this is found on
3154 FreeBSD (previously only the radiusclient library was supported).
3155
3156
3157Exim version 4.42
3158-----------------
3159
3160 1. When certain lookups returned multiple values in the form name=value, the
3161 quoting of the values was not always being done properly. Specifically:
3162 (a) If the value started with a double quote, but contained no whitespace,
3163 it was not quoted.
3164 (b) If the value contained whitespace other than a space character (i.e.
3165 tabs or newlines or carriage returns) it was not quoted.
3166 This fix has been applied to the mysql and pgsql lookups by writing a
3167 separate quoting function and calling it from the lookup code. The fix
3168 should probably also be applied to nisplus, ibase and oracle lookups, but
3169 since I cannot test any of those, I have not disturbed their existing code.
3170
3171 2. A hit in the callout cache for a specific address caused a log line with no
3172 reason for rejecting RCPT. Now it says "Previous (cached) callout
3173 verification failure".
3174
3175 3. There was an off-by-one bug in the queryprogram router. An over-long
3176 return line was truncated at 256 instead of 255 characters, thereby
3177 overflowing its buffer with the terminating zero. As well as fixing this, I
3178 have increased the buffer size to 1024 (and made a note to document this).
3179
3180 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3181 when Exim is waiting for an SMTP response from a remote server, Exim
3182 restarts its select() call on the socket, thereby resetting its timeout.
3183 This is not a problem when such interrupts are rare. Somebody set up a cron
3184 job to run exiwhat every 2 minutes, which is less than the normal select()
3185 timeout (5 or 10 minutes). This meant that the select() timeout never
3186 kicked in because it was always reset. I have fixed this by comparing the
3187 time when an interrupt arrives with the time at the start of the first call
3188 to select(). If more time than the timeout has elapsed, the interrupt is
3189 treated as a timeout.
3190
3191 5. Some internal re-factoring in preparation for the addition of Sieve
3192 extensions (by MH). In particular, the "personal" test is moved to a
3193 separate function, and given an option for scanning Cc: and Bcc: (which is
3194 not set for Exim filters).
3195
3196 6. When Exim created an email address using the login of the caller as the
3197 local part (e.g. when creating a From: or Sender: header line), it was not
3198 quoting the local part when it contained special characters such as @.
3199
3200 7. Installed new OpenBSD configuration files.
3201
3202 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3203 try to make them clearer.
3204
3205 9. Callout options, other than the timeout value, were being ignored when
3206 verifying sender addresses in header lines. For example, when using
3207
3208 verify = header_sender/callout=no_cache
3209
3210 the cache was (incorrectly) being used.
3211
321210. Added a missing instance of ${EXE} to the exim_install script; this affects
3213 only the Cygwin environment.
3214
321511. When return_path_on_delivery was set as a log selector, if different remote
3216 addresses in the same message used different return paths and parallel
3217 remote delivery occurred, the wrong values would sometimes be logged.
3218 (Whenever a remote delivery process finished, the return path value from
3219 the most recently started remote delivery process was logged.)
3220
322112. RFC 3848 specifies standard names for the "with" phrase in Received: header
3222 lines when AUTH and/or TLS are in use. This is the "received protocol"
3223 field. Exim used to use "asmtp" for authenticated SMTP, without any
3224 indication (in the protocol name) for TLS use. Now it follows the RFC and
3225 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3226 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3227 names appear in log lines as well as in Received: header lines.
3228
322913. Installed MH's patches for Sieve to add the "copy" and "vacation"
3230 extensions, and comparison tests, and to fix some bugs.
3231
323214. Changes to the "personal" filter test:
3233
3234 (1) The test was buggy in that it was just doing the equivalent of
3235 "contains" tests on header lines. For example, if a user's address was
3236 anne@some.where, the "personal" test would incorrectly be true for
3237
3238 To: susanne@some.where
3239
3240 This test is now done by extracting each address from the header in turn,
3241 and checking the entire address. Other tests that are part of "personal"
3242 are now done using regular expressions (for example, to check local parts
3243 of addresses in From: header lines).
3244
3245 (2) The list of non-personal local parts in From: addresses has been
3246 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3247 taken from the Sieve specification recommendations.
3248
3249 (3) If the message contains any header line starting with "List-" it is
3250 treated as non-personal.
3251
3252 (4) The test for "circular" in the Subject: header line has been removed
3253 because it now seems ill-conceived.
3254
325515. Minor typos in src/EDITME comments corrected.
3256
325716. Installed latest exipick from John Jetmore.
3258
325917. If headers_add on a router specified a text string that was too long for
3260 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3261 of string_sprintf() is now avoided.
3262
326318. $message_body_size was not set (it was always zero) when running the DATA
3264 ACL and the local_scan() function.
3265
326619. For the "mail" command in an Exim filter, no default was being set for
3267 the once_repeat time, causing a random time value to be used if "once" was
3268 specified. (If the value happened to be <= 0, no repeat happened.) The
3269 default is now 0s, meaning "never repeat". The "vacation" command was OK
3270 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3271 (I found it when inspecting the code).
3272
327320. There is now an overall timeout for performing a callout verification. It
3274 defaults to 4 times the callout timeout, which applies to individual SMTP
3275 commands during the callout. The overall timeout applies when there is more
3276 than one host that can be tried. The timeout is checked before trying the
3277 next host. This prevents very long delays if there are a large number of
3278 hosts and all are timing out (e.g. when the network connections are timing
3279 out). The value of the overall timeout can be changed by specifying an
3280 additional sub-option for "callout", called "maxwait". For example:
3281
3282 verify = sender/callout=5s,maxwait=20s
3283
328421. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3285 to the end before writing, but this should make it even safer).
3286
328722. Exim was forgetting that it had advertised PIPELINING for the second and
3288 subsequent messages on an SMTP connection. It was also not resetting its
3289 memory on STARTTLS and an internal HELO.
3290
329123. When Exim logs an SMTP synchronization error within a session, it now
3292 records whether PIPELINING has been advertised or not.
3293
329424. Added 3 instances of "(long int)" casts to time_t variables that were being
3295 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3296 rather than long int.
3297
329825. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3299
330026. Added the never_mail option to autoreply.
3301
3302
3303Exim version 4.41
3304-----------------
3305
3306 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3307 crash if the getsockname() call failed; this can happen if a connection is
3308 closed very soon after it is established. The problem was simply in the
3309 order in which certain operations were done, causing Exim to try to write
3310 to the SMTP stream before it had set up the file descriptor. The bug has
3311 been fixed by making things happen in the correct order.
3312
3313
3314Exim version 4.40
3315-----------------
3316
3317 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3318 before the connection was closed, thus losing the rejection response.
3319
3320 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3321 some early Solaris releases, but causes trouble in current releases where
3322 socklen_t is defined.
3323
3324 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3325 always exist.
3326
3327 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3328 configured.
3329
3330 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3331 that releasing the top of it at the end releases what was used for sub-
3332 expansions (unless the block got too big). However, discard this block if
3333 the first thing is a variable or header, so that we can use its block when
3334 it is dynamic (useful for very large $message_headers, for example).
3335
3336 6. Lookups now cache *every* query, not just the most recent. A new, separate
3337 store pool is used for this. It can be recovered when all lookup caches are
3338 flushed. Lookups now release memory at the end of their result strings.
3339 This has involved some general refactoring of the lookup sources.
3340
3341 7. Some code has been added to the store_xxx() functions to reduce the amount
3342 of flapping under certain conditions.
3343
3344 8. log_incoming_interface used to affect only the <= reception log lines. Now
3345 it causes the local interface and port to be added to several more SMTP log
3346 lines, for example "SMTP connection from", and rejection lines.
3347
3348 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3349
335010. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3351
335211. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3353 could be overwritten at the end of the current message (or the start of a
3354 new message if it was set in a HELO ACL). The value is now preserved for
3355 the duration of the SMTP connection.
3356
335712. If a transport had a headers_rewrite setting, and a matching header line
3358 contained an unqualified address, that address was qualified, even if it
3359 did not match any rewriting rules. The underlying bug was that the values
3360 of the flags that permit the existence of unqualified sender and recipient
3361 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3362 non-local messages, and by -bnq for local messages) were not being
3363 preserved with the message after it was received.
3364
336513. When Exim was logging an SMTP synchronization error, it could sometimes log
3366 "next input=" as part of the text comprising the host identity instead of
3367 the correct text. The code was using the same buffer for two different
3368 strings. However, depending on which order the printing function evaluated
3369 its arguments, the bug did not always show up. Under Linux, for example, my
3370 test suite worked just fine.
3371
337214. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3373 doesn't work with some older versions of Perl. It has been changed to "my",
3374 which in any case is probably the better facility to use.
3375
337615. A really picky compiler found some instances of statements for creating
3377 error messages that either had too many or two few arguments for the format
3378 string.
3379
338016. The size of the buffer for calls to the DNS resolver has been increased
3381 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3382 for addresses that have a lot of PTR records. This alleviates a problem; it
3383 does not fully solve it.
3384
338517. A dnsdb lookup for PTR records that receives more data than will fit in the
3386 buffer now truncates the list and logs the incident, which is the same
3387 action as happens when Exim is looking up a host name and its aliases.
3388 Previously in this situation something unpredictable would happen;
3389 sometimes it was "internal error: store_reset failed".
3390
339118. If a server dropped the connection unexpectedly when an Exim client was
3392 using GnuTLS and trying to read a response, the client delivery process
3393 crashed while trying to generate an error log message.
3394
339519. If a "warn" verb in an ACL added multiple headers to a message in a single
3396 string, for example:
3397
3398 warn message = H1: something\nH2: something
3399
3400 the text was added as a single header line from Exim's point of view
3401 though it ended up OK in the delivered message. However, searching for the
3402 second and subsequent header lines using $h_h2: did not work. This has been
3403 fixed. Similarly, if a system filter added multiple headers in this way,
3404 the routers could not see them.
3405
340620. Expanded the error message when iplsearch is called with an invalid key to
3407 suggest using net-iplsearch in a host list.
3408
340921. When running tests using -bh, any delays imposed by "delay" modifiers in
3410 ACLs are no longer actually imposed (and a message to that effect is
3411 output).
3412
341322. If a "gecos" field in a passwd entry contained escaped characters, in
3414 particular, if it contained a \" sequence, Exim got it wrong when building
3415 a From: or a Sender: header from that name. A second bug also caused
3416 incorrect handling when an unquoted " was present following a character
3417 that needed quoting.
3418
341923. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3420 was not being matched caselessly.
3421
342224. Arranged for all hyphens in the exim.8 source to be escaped with
3423 backslashes.
3424
342525. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3426 properly. Recipient callout cache records were still being keyed to include
3427 the sender, even when use_sender was set false. This led to far more
3428 callouts that were necessary. The sender is no longer included in the key
3429 when use_sender is false.
3430
343126. Added "control = submission" modifier to ACLs.
3432
343327. Added the ${base62d: operator to decode base 62 numbers.
3434
343528. dnsdb lookups can now access SRV records.
3436
343729. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3438 the configuration file.
3439
344030. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3441 (-v) mode. This makes the output for a verbose queue run more intelligible.
3442
344331. Added a use_postmaster feature to recipient callouts.
3444
344532. Added the $body_zerocount variable, containing the number of binary zero
3446 bytes in the message body.
3447
344833. The time of last modification of the "new" subdirectory is now used as the
3449 "mailbox time last read" when there is a quota error for a maildir
3450 delivery.
3451
345234. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3453
345435. Added +ignore_unknown as a special item in host lists.
3455
345636. Code for decoding IPv6 addresses in host lists is now included, even if
3457 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3458 address was recognized as an IP address, but was then not correctly decoded
3459 into binary, causing unexpected and incorrect effects when compared with
3460 another IP address.
3461
3462
3463Exim version 4.34
3464-----------------
3465
3466 1. Very minor rewording of debugging text in manualroute to say "list of
3467 hosts" instead of "hostlist".
3468
3469 2. If verify=header_syntax was set, and a header line with an unqualified
3470 address (no domain) and a large number of spaces between the end of the
3471 name and the colon was received, the reception process suffered a buffer
3472 overflow, and (when I tested it) crashed. This was caused by some obsolete
3473 code that should have been removed. The fix is to remove it!
3474
3475 3. When running in the test harness, delay a bit after writing a bounce
3476 message to get a bit more predictability in the log output.
3477
3478 4. Added a call to search_tidyup() just before forking a reception process. In
3479 theory, someone could use a lookup in the expansion of smtp_accept_max_
3480 per_host which, without the tidyup, could leave open a database connection.
3481
3482 5. Added the variables $recipient_data and $sender_data which get set from a
3483 lookup success in an ACL "recipients" or "senders" condition, or a router
3484 "senders" option, similar to $domain_data and $local_part_data.
3485
3486 6. Moved the writing of debug_print from before to after the "senders" test
3487 for routers.
3488
3489 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3490 problems for message scanning, either using a data ACL, or using
3491 local_scan() because the Received: header was not generated till after they
3492 were called (in order to set the time as the time of reception completion).
3493 I have revised the way this works. The header is now generated after the
3494 body is received, but before the ACL or local_scan() are called. After they
3495 are run, the timestamp in the header is updated.
3496
3497
3498Exim version 4.33
3499-----------------
3500
3501 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3502 before starting a queue runner without re-exec. This happened only when
3503 deliver_drop_privilege was set or when the Exim user was set to root. The
3504 effect of the bug was that timeouts during subsequent deliveries caused
3505 crashes instead of being properly handled. The handler is now left at its
3506 default (and expected) setting.
3507
3508 2. The other case in which a daemon avoids a re-exec is to deliver an incoming
3509 message, again when deliver_drop_privilege is set or Exim is run as root.