Documentation fix for max_rcpts. Fixes: #955
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
5a1a5845 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.604 2010/03/05 16:08:15 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
5a1a5845
NM
18NM/03 Bugzilla 955: Documentation fix for max_rcpts.
19 Patch from Andreas Metzler
20
9bd3e22c 21
7c6d71af
NM
22Exim version 4.71
23-----------------
24
25TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body
26
f013fb92
NM
27NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
28
0eb8eedd
NM
29NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
30
663ee6d9
NM
31NM/03 Bugzilla 847: Enable DNSDB lookup by default.
32
177ebd9b
NM
33NM/04 Bugzilla 915: Flag broken perl installation during build.
34
7c6d71af 35
210f147e
NM
36Exim version 4.70
37-----------------
38
cdd3bb85 39TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 40 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
41
42TK/02 Write list of recipients to X-Envelope-Sender header when building
43 the mbox-format spool file for content scanning (suggested by Jakob
44 Hirsch)
45
46TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
47 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 48 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
49
50TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
51 by Mark Daniel Reidel <mr@df.eu>.
52
210f147e
NM
53NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
54 When building exim an external PCRE library is now needed -
55 PCRE is a system library on the majority of modern systems.
56 See entry on PCRE_LIBS in EDITME file.
57
deafd5b3
NM
58NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
59 conversation. Added nologin parameter to request.
60 Patch contributed by Kirill Miazine
61
089793a4
TF
62TF/01 Do not log submission mode rewrites if they do not change the address.
63
5f16ca82
TF
64TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
65
dae9d94e
NM
66NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
67 log files in place. Contributed by Roberto Lima
68
3f0da4d0
NM
69NM/04 Bugzilla 667: close socket used by dovecot authenticator
70
06864c44
TF
71TF/03 Bugzilla 615: When checking the local_parts router precondition
72 after a local_part_suffix or local_part_prefix option, Exim now
73 does not use the address's named list lookup cache, since this
74 contains cached lookups for the whole local part.
75
65a7d8c3
NM
76NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
77 Robert Millan. Documentation is in experimental-spec.txt
78
23510047 79TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 80
7d8eec3a 81NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000
5f28a6e8 82
7d8eec3a 83NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
84 Patch provided by Jan Srzednicki
85
89dec7b6
TF
86TF/05 Leading white space used to be stripped from $spam_report which
87 wrecked the formatting. Now it is preserved.
5f28a6e8 88
a99de90c
TF
89TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
90 that they are available at delivery time.
91
e2803e40
TF
92TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
93
7199e1ee
TF
94TF/08 TLS error reporting now respects the incoming_interface and
95 incoming_port log selectors.
96
e276e04b
TF
97TF/09 Produce a more useful error message if an SMTP transport's hosts
98 setting expands to an empty string.
99
ce552449
NM
100NM/06 Bugzilla 744: EXPN did not work under TLS.
101 Patch provided by Phil Pennock
102
e765a0f1
NM
103NM/07 Bugzilla 769: Extraneous comma in usage fprintf
104 Patch provided by Richard Godbee
105
4f054c63 106NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 107 acl_smtp_notquit, added index entry.
4f054c63 108
24c929a2
NM
109NM/09 Bugzilla 787: Potential buffer overflow in string_format
110 Patch provided by Eugene Bujak
111
cf73943b
NM
112NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
113 Patch provided by Maxim Dounin
114
b52bc06e
NM
115NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
116 Patch provided by Phil Pennock
117
447de4b0
NM
118NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
119
4c69d561
NM
120NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
121 Patch provided by Brad "anomie" Jorsch
122
d5c39246 123NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
NM
124 Patch provided by Dean Brooks
125
0b23848a
TK
126TK/05 Add native DKIM support (does not depend on external libraries).
127
8f3414a1 128NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
NM
129 Patch provided by Graeme Fowler
130
fb6f955d
NM
131NM/16 Bugzilla 851: Documentation example syntax fix.
132
133NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 134
dbb0bf41
NM
135NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
136
f3766eb5
NM
137NM/19 Bugzilla 745: TLS version reporting
138 Patch provided by Phil Pennock
139
140NM/20 Bugzilla 167: bool: condition support
141 Patch provided by Phil Pennock
36f12725 142
e6060e2c
NM
143NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
144 Patch provided by Phil Pennock
145
7496b417 146NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
NM
147 Patch provided by Brad "anomie" Jorsch
148
d5c13d66
NM
149NM/23 Bugzilla 687: Fix misparses in eximstats
150 Patch provided by Heiko Schlittermann
151
b2335c0b
NM
152NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid
153 Patch provided by Heiko Schlittermann
154
f4cd9433 155NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
1da77999 156 plus update to original patch.
f4cd9433
NM
157
158NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 159
8dc71ab3
NM
160NM/27 Bugzilla 802: Improvements to local interface IP addr detection
161 Patch provided by David Brownlee
162
400eda43
NM
163NM/28 Bugzilla 807: Improvements to LMTP delivery logging
164
165NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 166
07af267e
NM
167NM/30 Bugzilla 888: TLS documentation bugfixes
168
0cc09577 169NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 170
17792b53
NM
171NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
172 Unlike the original bugzilla I have changed all shell scripts in src tree
173
52383f8f
NM
174NM/33 Bugzilla 898: Transport filter timeout fix
175 Patch by Todd Rinaldo
176
5ca6d115
NM
177NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches
178 Patch by Serge Demonchaux
179
baee9eee
NM
180NM/35 Bugzilla 39: Base64 decode bug fixes
181 Patch by Jakob Hirsch
182
e93a964c
NM
183NM/36 Bugzilla 909: Correct connect() call in dcc code
184
9bf3d68f
NM
185NM/37 Bugzilla 910: Correct issue with relaxed/simple handling
186
187NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed
96535b98 188
30339e0f
NM
189NM/39 Bugzilla 911: Fixed MakeLinks build script
190
deafd5b3 191
47db1125
NM
192Exim version 4.69
193-----------------
194
4b3504d0
TK
195TK/01 Add preliminary DKIM support. Currently requires a forked version of
196 ALT-N's libdkim that I have put here:
197 http://duncanthrax.net/exim-experimental/
198
199 Note to Michael Haardt: I had to rename some vars in sieve.c. They
200 were called 'true' and it seems that C99 defines that as a reserved
201 keyword to be used with 'bool' variable types. That means you could
202 not include C99-style headers which use bools without triggering
203 build errors in sieve.c.
204
81ea09ca
NM
205NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
206 as mailq or other aliases. Changed the --help handling significantly
207 to do whats expected. exim_usage() emits usage/help information.
208
f13cddcb
SC
209SC/01 Added the -bylocaldomain option to eximstats.
210
8ad076b2
NM
211NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
212
a843aaa6
NM
213NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
214
47db1125
NM
215NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
216
217
eb4c0de6
PH
218Exim version 4.68
219-----------------
220
221PH/01 Another patch from the Sieve maintainer.
222
6a3bceb1
PH
223PH/02 When an IPv6 address is converted to a string for single-key lookup
224 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
225 dots are used instead of colons so that keys in lsearch files need not
226 contain colons. This was done some time before quoting was made available
227 in lsearch files. However, iplsearch files do require colons in IPv6 keys
228 (notated using the quote facility) so as to distinguish them from IPv4
229 keys. This meant that lookups for IP addresses in host lists did not work
230 for iplsearch lookups.
231
232 This has been fixed by arranging for IPv6 addresses to be expressed with
233 colons if the lookup type is iplsearch. This is not incompatible, because
234 previously such lookups could never work.
235
236 The situation is now rather anomolous, since one *can* have colons in
237 ordinary lsearch keys. However, making the change in all cases is
238 incompatible and would probably break a number of configurations.
239
2e30fa9d
TK
240TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
241 version.
242
0806a9c5
MH
243MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
244 conversion specification without a maximum field width, thereby enabling
245 a rogue spamd server to cause a buffer overflow. While nobody in their
246 right mind would setup Exim to query an untrusted spamd server, an
247 attacker that gains access to a server running spamd could potentially
248 exploit this vulnerability to run arbitrary code as the Exim user.
249
ae276964
TK
250TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
251 $primary_hostname instead of what libspf2 thinks the hosts name is.
252
0f2cbd1b
MH
253MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
254 a directory entry by the name of the lookup key. Previously, if a
255 symlink pointed to a non-existing file or a file in a directory that
256 Exim lacked permissions to read, a lookup for a key matching that
257 symlink would fail. Now it is enough that a matching directory entry
258 exists, symlink or not. (Bugzilla 503.)
259
2b85bce7
PH
260PH/03 The body_linecount and body_zerocount variables are now exported in the
261 local_scan API.
262
93655c46
PH
263PH/04 Added the $dnslist_matched variable.
264
6c512171
PH
265PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
266 This means they are set thereafter only if the connection becomes
267 encrypted.
268
269PH/06 Added the client_condition to authenticators so that some can be skipped
270 by clients under certain conditions.
271
aa6dc513
PH
272PH/07 The error message for a badly-placed control=no_multiline_responses left
273 "_responses" off the end of the name.
274
a96603a0
PH
275PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
276
8f240103
PH
277PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
278 (without spaces) instead of just copying the configuration text.
279
280PH/10 Added the /noupdate option to the ratelimit ACL condition.
281
d677b2f2
PH
282PH/11 Added $max_received_linelength.
283
d52120f2
PH
284PH/12 Added +ignore_defer and +include_defer to host lists.
285
64f2600a
PH
286PH/13 Installed PCRE version 7.2. This needed some changes because of the new
287 way in which PCRE > 7.0 is built.
288
8669f003
PH
289PH/14 Implemented queue_only_load_latch.
290
a4dc33a8
PH
291PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
292 MAIL command. The effect was to mangle the value on 64-bit systems.
293
d6a60c0f
PH
294PH/16 Another patch from the Sieve maintainer.
295
8f128379
PH
296PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
297
8932dffe
PH
298PH/18 If a system quota error occurred while trying to create the file for
299 a maildir delivery, the message "Mailbox is full" was not appended to the
300 bounce if the delivery eventually timed out. Change 4.67/27 below applied
301 only to a quota excession during the actual writing of the file.
d6a60c0f 302
ddea74fa 303PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
304 characters?) which causes problems in log lines. The DN values are now
305 passed through string_printing() before being added to log lines.
306
ddea74fa 307PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
308 and InterBase are left for another time.)
309
ddea74fa
PH
310PH/21 Added message_body_newlines option.
311
ce9f225c
PH
312PH/22 Guard against possible overflow in moan_check_errorcopy().
313
19897d52
PH
314PH/23 POSIX allows open() to be a macro; guard against that.
315
bc64a74d
PH
316PH/24 If the recipient of an error message contained an @ in the local part
317 (suitably quoted, of course), incorrect values were put in $domain and
318 $local_part during the evaluation of errors_copy.
319
eb4c0de6 320
b4ed4da0
PH
321Exim version 4.67
322-----------------
323
22ad45c9
MH
324MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
325 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
326 Jan Srzednicki.
327
b4ed4da0
PH
328PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
329 issue a MAIL command.
330
431b7361
PH
331PH/02 In an ACL statement such as
332
333 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
334
335 if a client was not listed at all, or was listed with a value other than
336 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
337 the condition was not true (as it should be), so access was not denied.
338 The bug was that the ! inversion was incorrectly passed on to the second
339 item. This has been fixed.
340
341PH/03 Added additional dnslists conditions == and =& which are different from
342 = and & when the dns lookup returns more than one IP address.
343
83da1223
PH
344PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
345 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
346
54fc8428
PH
347PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
348 FSYNC, which compiles an option called disable_fsync that allows for
349 bypassing fsync(). The documentation is heavily laced with warnings.
350
34c5e8dd
SC
351SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
352
bbe15da8
PH
353PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
354 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
355 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
356 including adding "make clean"; (3) Added -fPIC when compiling the test
357 dynamically loaded module, to get rid of a warning.
358
0e8a9471
MH
359MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
360 message fails, move_frozen_messages = true and ignore_bounce_errors_after
361 = 0s. The bug is otherwise harmless.
362
f0872424
PH
363PH/07 There was a bug in the dovecot authenticator such that the value of
364 $auth1 could be overwritten, and so not correctly preserved, after a
365 successful authentication. This usually meant that the value preserved by
366 the server_setid option was incorrect.
367
b01dd148
PH
368PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
369
6bf342e1
PH
370PH/09 Installed PCRE release 7.0.
371
273f34d0
PH
372PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
373 run for batched SMTP input. It is now run at the start of every message
374 in the batch. While fixing this I discovered that the process information
375 (output by running exiwhat) was not always getting set for -bs and -bS
376 input. This is fixed, and it now also says "batched" for BSMTP.
377
cf8b11a5
PH
378PH/11 Added control=no_pipelining.
379
41c7c167
PH
380PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
381 patch, slightly modified), and move the expansion of helo_data till after
382 the connection is made in the smtp transport (so it can use these
383 values).
384
9c57cbc0
PH
385PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
386
f3f065bb
PH
387PH/14 Added log_selector = +pid.
388
047bdd8c
PH
389PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
390
0ce9abe6
PH
391PH/16 Add ${if forany and ${if forall.
392
0e22dfd1
PH
393PH/17 Added dsn_from option to vary the From: line in DSNs.
394
4c590bd1
PH
395PH/18 Flush SMTP output before performing a callout, unless control =
396 no_callout_flush is set.
397
09945f1e
PH
398PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
399 was true (the default) a successful delivery failed to delete the retry
400 item, thus causing premature timeout of the address. The bug is now
401 fixed.
402
c51b8e75
PH
403PH/20 Added hosts_avoid_pipelining to the smtp transport.
404
e28326d8
PH
405PH/21 Long custom messages for fakedefer and fakereject are now split up
406 into multiline reponses in the same way that messages for "deny" and
407 other ACL rejections are.
408
75b1493f
PH
409PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
410 with slight modification.
411
7c5214ec
PH
412PH/23 Applied sieve patches from the maintainer "tracking the latest notify
413 draft, changing the syntax and factoring some duplicate code".
414
4311097e
PH
415PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
416 for deliveries of the second and subsequent messages over the same SMTP
417 connection.
418
29f89cad
PH
419PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
420 ${reduce, with only minor "tidies".
421
5e687460
SC
422SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
423
c3611384
PH
424PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
425 expansion side effects.
426
5a11a7b4
PH
427PH/27 When a message times out after an over-quota error from an Exim-imposed
428 quota, the bounce message says "mailbox is full". This message was not
429 being given when it was a system quota that was exceeded. It now should
430 be the same.
431
0e20aff9
MH
432MH/03 Made $recipients available in local_scan(). local_scan() already has
433 better access to the recipient list through recipients_list[], but
434 $recipients can be useful in postmaster-provided expansion strings.
435
ca86f471
PH
436PH/28 The $smtp_command and $smtp_command_argument variables were not correct
437 in the case of a MAIL command with additional options following the
438 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
439 were accidentally chopped off.
440
a14e5636
PH
441PH/29 SMTP synchronization checks are implemented when a command is read -
442 there is a check that no more input is waiting when there shouldn't be
443 any. However, for some commands, a delay in an ACL can mean that it is
444 some time before the response is written. In this time, more input might
445 arrive, invalidly. So now there are extra checks after an ACL has run for
446 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
447 pipelining has not been advertised.
448
ec95d1a6
PH
449PH/30 MH's patch to allow iscntrl() characters to be list separators.
450
42855d71
PH
451PH/31 Unlike :fail:, a custom message specified with :defer: was not being
452 returned in the SMTP response when smtp_return_error_details was false.
453 This has been fixed.
454
57c2c631
PH
455PH/32 Change the Dovecot authenticator to use read() and write() on the socket
456 instead of the C I/O that was originally supplied, because problems were
457 reported on Solaris.
458
58c01c94
PH
459PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
460 Exim which did not show up earlier: it was assuming that a call to
461 SSL_CTX_set_info_callback() might give an error value. In fact, there is
462 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
463 was a macro that became an assignment, so it seemed to work. This has
464 changed to a proper function call with a void return, hence the compile
465 error. Exim's code has been fixed.
466
dee5a20a
PH
467PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
468 cpus.
469
d2ee6114
PH
470PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
471
b2d5182b
PH
472PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
473
79749a79
PH
474PH/37 If a message is not accepted after it has had an id assigned (e.g.
475 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
476 "Completed" line in the log. When some messages of this type were
477 selected by exigrep, they were listed as "not completed". Others were
478 picked up by some special patterns. I have improved the selection
479 criteria to be more general.
79749a79 480
c456d9bb
PH
481PH/38 The host_find_failed option in the manualroute router can now be set
482 to "ignore", to completely ignore a host whose IP address cannot be
483 found. If all hosts are ignored, the behaviour is controlled by the new
484 host_all_ignored option.
485
cd9868ec
PH
486PH/39 In a list of hosts for manualroute, if one item (either because of multi-
487 homing or because of multiple MX records with /mx) generated more than
488 one IP address, and the following item turned out to be the local host,
489 all the secondary addresses of the first item were incorrectly removed
490 from the list, along with the local host and any following hosts (which
491 is what is supposed to happen).
492
ebeaf996
PH
493PH/40 When Exim receives a message, it writes the login name, uid, and gid of
494 whoever called Exim into the -H file. In the case of the daemon it was
495 behaving confusingly. When first started, it used values for whoever
496 started the daemon, but after a SIGHUP it used the Exim user (because it
497 calls itself on a restart). I have changed the code so that it now always
498 uses the Exim user.
499
2679d413
PH
500PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
501 message are rejected with the same error (e.g. no authentication or bad
502 sender address), and a DATA command is nevertheless sent (as can happen
503 with PIPELINING or a stupid MUA), the error message that was given to the
504 RCPT commands is included in the rejection of the DATA command. This is
505 intended to be helpful for MUAs that show only the final error to their
506 users.
507
84024b72
PH
508PH/42 Another patch from the Sieve maintainer.
509
8005d38e
SC
510SC/02 Eximstats - Differentiate between permanent and temporary rejects.
511 Eximstats - Fixed some broken HTML links and added missing column headers
512 (Jez Hancock).
513 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
514 columns for Rejects, Temp Rejects, Ham, and Spam rows.
515
3298c6c6
SC
516SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
517
a43a27c5
PH
518PH/43 Yet another patch from the Sieve maintainer.
519
58eb016e 520PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
521 the response to the final '.' that terminates a message, but only in the
522 case where the client has not sent further data following the '.'
523 (unfortunately, this is allowed). However, in many cases there won't be
524 any further data because there won't be any more messages to send. A call
525 to select() can be used: if it shows that the input is "ready", there is
526 either input waiting, or the socket has been closed. An attempt to read
527 the next input character can distinguish the two cases. Previously, Exim
58eb016e 528 would have sent an OK response which the client would never have see.
563b63fa
PH
529 This could lead to message repetition. This fix should cure that, at
530 least in a lot of common cases.
58eb016e 531
b43a74ea
PH
532PH/45 Do not advertise STARTTLS in response to HELP unless it would be
533 advertised in response to EHLO.
534
b4ed4da0 535
5dd1517f
PH
536Exim version 4.66
537-----------------
538
539PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
540 fixed by 4.65/MH/01 (is this a record?) are fixed:
541
542 (i) An empty string was always treated as zero by the numeric comparison
543 operators. This behaviour has been restored.
544
545 (ii) It is documented that the numeric comparison operators always treat
546 their arguments as decimal numbers. This was broken in that numbers
547 starting with 0 were being interpreted as octal.
548
549 While fixing these problems I realized that there was another issue that
550 hadn't been noticed. Values of message_size_limit (both the global option
551 and the transport option) were treated as octal if they started with 0.
552 The documentation was vague. These values are now always treated as
553 decimal, and I will make that clear in the documentation.
554
555
93cfa765
TK
556Exim version 4.65
557-----------------
558
559TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
560 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
561 versions. (#438)
562
d6066548
MH
563MH/01 Don't check that the operands of numeric comparison operators are
564 integers when their expansion is in "skipping" mode (fixes bug
565 introduced by 4.64-PH/07).
566
4362ff0d
PH
567PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
568 child addresses, Exim now panics and dies. Previously, because the count
569 is held in a short int, deliveries were likely to be lost. As such a
570 large number of recipients for a single message is ridiculous
571 (performance will be very, very poor), I have chosen to impose a limit
572 rather than extend the field.
573
93cfa765 574
944e9e9c
TF
575Exim version 4.64
576-----------------
aa41d2de 577
21d74bd9
TK
578TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
579 leftover -K file (the existence of which was triggered by #402).
580 While we were at it, introduced process PID as part of the -K
581 filename. This should rule out race conditions when creating
582 these files.
583
584TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
585 processing considerably. Previous code took too long for large mails,
586 triggering a timeout which in turn triggers #401.
587
588TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
589 in the DK code in transports.c. sendfile() is not really portable,
590 hence the _LINUX specificness.
944e9e9c
TF
591
592TF/01 In the add_headers option to the mail command in an Exim filter,
593 there was a bug that Exim would claim a syntax error in any
594 header after the first one which had an odd number of characters
595 in the field name.
596
2b1c6e3a
PH
597PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
598 callout verification, Exim cached a "reject" for the entire domain. This
599 is correct for most verifications, but it is not correct for a recipient
600 verification with use_sender or use_postmaster set, because in that case
601 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
602 case of MAIL FROM:<> rejection from other early rejections (e.g.
603 rejection of HELO). When verifying a recipient using a non-null MAIL
604 address, the cache is ignored if it shows MAIL FROM:<> rejection.
605 Whatever the result of the callout, the value of the domain cache is
606 left unchanged (for any other kind of callout, getting as far as trying
607 RCPT means that the domain itself is ok).
608
1f872c80
PH
609PH/02 Tidied a number of unused variable and signed/unsigned warnings that
610 gcc 4.1.1 threw up.
611
612PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
613 manifest itself as EPIPE rather than ECONNECT. When tidying away a
614 session, the daemon ignores ECONNECT errors and logs others; it now
615 ignores EPIPE as well.
616
d203e649
PH
617PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
618 (quoted-printable decoding).
619
cc2ed8f7 620PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 621 later the small subsequent patch to fix an introduced bug.
f951fd57 622
ddfcd446
PH
623PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
624
d45b1de8
PH
625PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
626
627PH/08 An error is now given if message_size_limit is specified negative.
628
38a0a95f 629PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 630 to be given (somewhat) arbitrary names.
38a0a95f 631
a2405d83
JJ
632JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
633 in 4.64-PH/09.
634
635JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
636 miscellaneous code fixes
637
6ea85e9a
PH
638PH/10 Added the log_reject_target ACL modifier to specify where to log
639 rejections.
640
26da7e20
PH
641PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
642 hostname. This is wrong, because it relates to the incoming message (and
643 probably the interface on which it is arriving) and not to the outgoing
644 callout (which could be using a different interface). This has been
645 changed to use the value of the helo_data option from the smtp transport
646 instead - this is what is used when a message is actually being sent. If
647 there is no remote transport (possible with a router that sets up host
648 addresses), $smtp_active_hostname is used.
6ea85e9a 649
14aa5a05 650PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 651 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
652 (a) The code assumed that strncpy() returns a negative number on buffer
653 overflow, which isn't the case. Replaced with Exim's string_format()
654 function.
655 (b) There were several signed/unsigned issues. I just did the minimum
656 hacking in of casts. There is scope for a larger refactoring.
657 (c) The code used strcasecmp() which is not a standard C function.
658 Replaced with Exim's strcmpic() function.
659 (d) The code set only $1; it now sets $auth1 as well.
660 (e) A simple test gave the error "authentication client didn't specify
661 service in request". It would seem that Dovecot has changed its
662 interface. Fortunately there's a specification; I followed it and
663 changed what the client sends and it appears to be working now.
664
ff75a1f7
PH
665PH/13 Added $message_headers_raw to provide the headers without RFC 2047
666 decoding.
667
e6f6568e
PH
668PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
669 address A is aliased to B and C, where B exists and C does not. Without
670 -v the output is "A verified" because verification stops after a
671 successful redirection if more than one address is generated. However,
672 with -v the child addresses are also verified. Exim was outputting "A
673 failed to verify" and then showing the successful verification for C,
674 with its parentage. It now outputs "B failed to verify", showing B's
675 parentage before showing the successful verification of C.
676
d6f6e0dc
PH
677PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
678 look up a TXT record in a specific list after matching in a combined
679 list.
680
322050c2
PH
681PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
682 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
683 they consult the DNS. I had assumed they would set it the way they
684 wanted; and indeed my experiments on Linux seem to show that in some
685 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
686 To be on the safe side, however, I have now made the interface to
687 host_find_byname() similar to host_find_bydns(), with an argument
688 containing the DNS resolver options. The host_find_byname() function now
689 sets these options at its start, just as host_find_bydns() does. The smtp
690 transport options dns_qualify_single and dns_search_parents are passed to
691 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
692 of host_find_byname() use the default settings of RES_DEFNAMES
693 (qualify_single) but not RES_DNSRCH (search_parents).
694
08955dd3
PH
695PH/17 Applied (a modified version of) Nico Erfurth's patch to make
696 spool_read_header() do less string testing, by means of a preliminary
697 switch on the second character of optional "-foo" lines. (This is
698 overdue, caused by the large number of possibilities that now exist.
699 Originally there were few.) While I was there, I also converted the
700 str(n)cmp tests so they don't re-test the leading "-" and the first
701 character, in the hope this might squeeze out yet more improvement.
702
1eccaa59
PH
703PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
704 flag allowing group syntax was set by the header_syntax check but not
705 turned off, possible causing trouble later; (2) The flag was not being
706 set at all for the header_verify test, causing "group"-style headers to
707 be rejected. I have now set it in this case, and also caused header_
708 verify to ignore an empty address taken from a group. While doing this, I
709 came across some other cases where the code for allowing group syntax
710 while scanning a header line wasn't quite right (mostly, not resetting
711 the flag correctly in the right place). These bugs could have caused
712 trouble for malformed header lines. I hope it is now all correct.
713
602e59e5
PH
714PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
715 with the "reply" argument non-NULL. The code, however (which originally
716 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
717 but it didn't always do it. This confused somebody who was copying the
718 code for some other use. I have removed all the tests.
719
411ef850
PH
720PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
721 feature that was used to support insecure browsers during the U.S. crypto
722 embargo. It requires special client support, and Exim is probably the
723 only MTA that supported it -- and would never use it because real RSA is
724 always available. This code has been removed, because it had the bad
725 effect of slowing Exim down by computing (never used) parameters for the
726 RSA_EXPORT functionality.
727
7befa435
PH
728PH/21 On the advice of Timo Sirainen, added a check to the dovecot
729 authenticator to fail if there's a tab character in the incoming data
730 (there should never be unless someone is messing about, as it's supposed
731 to be base64-encoded). Also added, on Timo's advice, the "secured" option
732 if the connection is using TLS or if the remote IP is the same as the
733 local IP, and the "valid-client-cert option" if a client certificate has
734 been verified.
735
48da4259 736PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
737 authenticators. This can be used for authorization after authentication
738 succeeds. (In the case of plaintext, it servers for both authentication
739 and authorization.)
740
48da4259
PH
741PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
742 if any retry times were supplied.
743
d1d5595c
PH
744PH/24 Exim crashed if verify=helo was activated during an incoming -bs
745 connection, where there is no client IP address to check. In this
746 situation, the verify now always succeeds.
747
0ef732d9
PH
748PH/25 Applied John Jetmore's -Mset patch.
749
328895cc
PH
750PH/26 Added -bem to be like -Mset, but loading a message from a file.
751
fd700877
PH
752PH/27 In a string expansion for a processed (not raw) header when multiple
753 headers of the same name were present, leading whitespace was being
754 removed from all of them, but trailing whitespace was being removed only
755 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
756 before concatenation. Completely empty headers in a concatenation (as
757 before) are ignored.
fd700877 758
8dce1a6f
PH
759PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
760 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
761
17af4a17
PH
762PH/29 [Removed. This was a change that I later backed out, and forgot to
763 correct the ChangeLog entry (that I had efficiently created) before
764 committing the later change.]
f6c332bd
PH
765
766PH/30 Exim was sometimes attempting to deliver messages that had suffered
767 address errors (4xx response to RCPT) over the same connection as other
768 messages routed to the same hosts. Such deliveries are always "forced",
769 so retry times are not inspected. This resulted in far too many retries
770 for the affected addresses. The effect occurred only when there were more
771 hosts than the hosts_max_try setting in the smtp transport when it had
772 the 4xx errors. Those hosts that it had tried were not added to the list
773 of hosts for which the message was waiting, so if all were tried, there
774 was no problem. Two fixes have been applied:
775
776 (i) If there are any address or message errors in an SMTP delivery, none
777 of the hosts (tried or untried) are now added to the list of hosts
778 for which the message is waiting, so the message should not be a
779 candidate for sending over the same connection that was used for a
780 successful delivery of some other message. This seems entirely
781 reasonable: after all the message is NOT "waiting for some host".
782 This is so "obvious" that I'm not sure why it wasn't done
783 previously. Hope I haven't missed anything, but it can't do any
784 harm, as the worst effect is to miss an optimization.
785
786 (ii) If, despite (i), such a delivery is accidentally attempted, the
787 routing retry time is respected, so at least it doesn't keep
788 hammering the server.
789
c1114884
PH
790PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
791 in ${readsocket because some servers need this prod.
792
7a0743eb
PH
793PH/32 Added some extra debug output when updating a wait-xxx database.
794
0d85fa3f
PH
795PH/33 The hint "could be header name not terminated by colon", which has been
796 given for certain expansion errors for a long time, was not being given
797 for the ${if def:h_colon_omitted{... case.
798
1bf43b78
PH
799PH/34 The spec says: "With one important exception, whenever a domain list is
800 being scanned, $domain contains the subject domain." There was at least
801 one case where this was not true.
802
520de300
PH
803PH/35 The error "getsockname() failed: connection reset by peer" was being
804 written to the panic log as well as the main log, but it isn't really
805 panic-worthy as it just means the connection died rather early on. I have
806 removed the panic log writing for the ECONNRESET error when getsockname()
807 fails.
808
48c7f9e2
PH
809PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
810 runs only) independently of the message's sender address. This meant
811 that, if the 4xx error was in fact related to the sender, a different
812 message to the same recipient with a different sender could confuse
813 things. In particualar, this can happen when sending to a greylisting
814 server, but other circumstances could also provoke similar problems.
815 I have changed the default so that the retry time for these errors is now
816 based a combination of the sender and recipient addresses. This change
817 can be overridden by setting address_retry_include_sender=false in the
818 smtp transport.
819
99ea1c86
PH
820PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
821 remote server are returned as part of bounce messages. This was not
822 happening for LMTP over a pipe (the lmtp transport), but now it is the
823 same for both kinds of LMTP.
824
a2042e78
PH
825PH/38 Despite being documented as not happening, Exim was rewriting addresses
826 in header lines that were in fact CNAMEs. This is no longer the case.
827
4fbcfc2e
PH
828PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
829 and queue runs started by the daemon processed all messages. This has
830 been fixed so that -R and -S can now usefully be given with -q<time>.
831
aa41d2de
PH
832PH/40 Import PCRE release 6.7 (fixes some bugs).
833
af561417
PH
834PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
835
3cc66b45
PH
836PH/42 Give an error if -q is specified more than once.
837
194cc0e4
PH
838PH/43 Renamed the variables $interface_address and $interface_port as
839 $received_ip_address and $received_port, to make it clear that these
840 values apply to message reception, and not to the outgoing interface when
841 a message is delivered. (The old names remain recognized, of course.)
842
a401ddaa
PH
843PH/44 There was no timeout on the connect() call when using a Unix domain
844 socket in the ${readsocket expansion. There now is.
845
4e88a19f
PH
846PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
847 be meaningful with "accept".
848
d7d7b289
SC
849SC/01 Eximstats V1.43
850 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
851
852SC/02 Eximstats V1.44
853 Use a glob alias rather than an array ref in the generated
854 parser. This improves both readability and performance.
855
856SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
857 Collect SpamAssassin and rejection statistics.
858 Don't display local sender or destination tables unless
859 there is data to show.
860 Added average volumes into the top table text output.
861
862SC/04 Eximstats V1.46
863 Collect data on the number of addresses (recipients)
864 as well as the number of messages.
865
866SC/05 Eximstats V1.47
867 Added 'Message too big' to the list of mail rejection
868 reasons (thanks to Marco Gaiarin).
869
870SC/06 Eximstats V1.48
871 Mainlog lines which have GMT offsets and are too short to
872 have a flag are now skipped.
873
874SC/07 Eximstats V1.49 (Alain Williams)
875 Added the -emptyok flag.
876
877SC/08 Eximstats V1.50
878 Fixes for obtaining the IP address from reject messages.
879
0ea2a468
JJ
880JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
881 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
882 whitesspace changes from 4.64-PH/27
883
884JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
885 match 4.64-PH/13
886
887JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
888 are found, allow negative numbers in numeric criteria)
889
890JJ/06 exipick.20061117.2, added new $message_body_missing variable
891
892JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
893 to match changes made in 4.64-PH/43
894
8a10f5a4
PH
895PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
896
30e18802
PH
897PH/47 Put in an explicit test for a DNS lookup of an address record where the
898 "domain" is actually an IP address, and force a failure. This locks out
899 those revolvers/nameservers that support "A-for-A" lookups, in
900 contravention of the specifications.
901
55728a4f
PH
902PH/48 When a host name was looked up from an IP address, and the subsequent
903 forward lookup of the name timed out, the host name was left in
904 $sender_host_name, contrary to the specification.
d7d7b289 905
d7837193
PH
906PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
907 restricted to single-key lookups, Exim was not diagnosing an error if
908 * or *@ was used with a query-style lookup.
909
87054a31
PH
910PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
911
ea2c01d2
MH
912MH/01 local_scan ABI version incremented to 1.1. It should have been updated
913 long ago, but noone interested enough thought of it. Let's just say that
914 the "1.1" means that there are some new functions that weren't there at
915 some point in the past.
916
e4fa6968
PH
917PH/51 Error processing for expansion failure of helo_data from an smtp
918 transport during callout processing was broken.
919
56f5d9bd
PH
920PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
921 tested/used via the -bh/-bhc/-bs options.
922
922e1c28
PH
923PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
924 bug, fixed in subsequent PCRE releases).
925
21eb6e72
PH
926PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
927 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
928
a0540757
PH
929PH/55 Check for a ridiculously long file name in exim_dbmbuild.
930
944e9e9c 931
478be7b0
SC
932Exim version 4.63
933-----------------
934
935SC/01 Use a glob alias rather than an array ref in eximstats generated
936 parser. This improves both readability and performance.
937
938SC/02 Collect SpamAssassin and rejection statistics in eximstats.
939 Don't display local sender or destination tables in eximstats unless
940 there is data to show.
941 Added average volumes into the eximstats top table text output.
942
943SC/03 Collect data on the number of addresses (recipients) as well
944 as the number of messages in eximstats.
945
2b965a65
TF
946TF/01 Correct an error in the documentation for the redirect router. Exim
947 does (usually) call initgroups() when daemonizing.
478be7b0 948
45b91596
PH
949TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
950 with consistent privilege compared to when running as a daemon.
478be7b0 951
c59f5781
TF
952TF/03 Note in the spec that $authenticated_id is not set for local
953 submissions from trusted users.
954
90fc3069
TF
955TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
956 Thanks to Dean Brooks <dean@iglou.com> for the patch.
957
6083aca0
TF
958TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
959 by adding some example configuration directives to the default
960 configuration file. A little bit of work is required to uncomment the
961 directives and define how usernames and passwords are checked, but
962 there is now a framework to start from.
963
765b530f
PH
964PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
965 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
966 without this. I don't know how relevant this is to other LDAP libraries.
967
4e167a8c
PH
968PH/02 Add the verb name to the "unknown ACL verb" error.
969
4608d683
PH
970PH/03 Magnus Holmgren's patch for filter_prepend_home.
971
b8dc3e4a
PH
972PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
973
5418e93b
PH
974PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
975 directory not expanded when it should be if an expanded home directory
976 was set for the address (which is overridden by the transport).
977
b4a9bda2
PH
978PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
979 libradius.
980
45b91596
PH
981PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
982 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
983 because it is too late at that time, and has no effect.
984
5547e2c5
PH
985PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
986 security issue with \' (bugzilla #107). I could not use the
987 PQescapeStringConn() function, because it needs a PGconn value as one of
988 its arguments.
989
dbcef0ea
PH
990PH/08 When testing addresses using -bt, indicate those final addresses that
991 are duplicates that would not cause an additional delivery. At least one
992 person was confused, thinking that -bt output corresponded to deliveries.
993 (Suppressing duplicates isn't a good idea as you lose the information
994 about possibly different redirections that led to the duplicates.)
995
25257489
PH
996PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
997 systems where poll() doesn't work, in particular OS X.
998
c816d124
PH
999PH/10 Added more information to debugging output for retry time not reached.
1000
a9ccd69a
PH
1001PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1002 operations in malware.c.
1003
75fa1910
PH
1004PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1005 signatures.
1006
a7d7aa58
PH
1007PH/13 If write_rejectlog was set false when logging was sent to syslog with
1008 syslog_duplication set false, log lines that would normally be written
1009 both the the main log and to the reject log were not written to syslog at
1010 all.
1011
42119b09
PH
1012PH/14 In the default configuration, change the use of "message" in ACL warn
1013 statements to "add_header".
1014
41609df5
PH
1015PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1016 not followed by a command (e.g. "seen endif").
1017
a5bd321b
PH
1018PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1019 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1020 latter.
1021
e85a7ad5 1022PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1023 so that it is now:
1024
e85a7ad5
PH
1025 ${if or { \
1026 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1027 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1028 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1029 }{no}{yes}}
1030
e85a7ad5
PH
1031 The Auto-Submitted: and various List- headers are standardised, whereas I
1032 don't think Precedence: ever was.
5dff5817 1033
d8fe1c03
PH
1034PH/18 Refactored debugging code in route_finduser() to show more information,
1035 in particular, the error code if getpwnam() issues one.
1036
16282d2b
PH
1037PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1038 This is apparently needed in addition to the PH/07 change above to avoid
1039 any possible encoding problems.
1040
35d40a98
PH
1041PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1042 but not after initializing Perl.
1043
034d99ab
PH
1044PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1045 output them only if debugging. By default they are written stderr,
1046 apparently, which is not desirable.
1047
6ec97b1b
PH
1048PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1049 queries.
1050
e22ca4ac
JJ
1051JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1052 --not options
1053
1054JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1055
33d73e3b
PH
1056PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1057 authenticated or an ident call has been made. Suppress the default
1058 values for $authenticated_id and $authenticated_sender (but permit -oMai
1059 and -oMas) when testing with -bh.
1060
9ecb03f3
PH
1061PH/24 Re-jigged the order of the tests in the default configuration so that the
1062 tests for valid domains and recipients precede the DNS black list and CSA
1063 tests, on the grounds that those ones are more expensive.
1064
084efe8d
PH
1065PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1066 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1067 This bug exists in every version of Exim that I still have, right back to
1068 0.12.
1069
366fc9f0
PH
1070PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1071 However, an attempt to turn on case-sensitivity in a regex key by
1072 including (?-i) didn't work because the subject string was already
1073 lowercased, and the effects were non-intuitive. It turns out that a
1074 one-line patch can be used to allow (?-i) to work as expected.
1075
c59f5781 1076
c887c79e
TF
1077Exim version 4.62
1078-----------------
1079
1080TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1081 other effects) broke the use of negated acl sub-conditions.
1082
1cce3af8
PH
1083PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1084 patch).
1085
afb3eaaf
PH
1086PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1087 "Deny" causes Exim to reject the incoming connection with a 554 error.
1088 Unfortunately, if there is a major crisis, such as a disk failure,
1089 tcp-wrappers gives "deny", whereas what one would like would be some
1090 kind of temporary error. A kludge has been added to help with this.
1091 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1092 554 error is used if errno is still zero or contains ENOENT (which occurs
1093 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1094 451 error is used.
1095
e173618b
PH
1096PH/03 Add -lutil to the default FreeBSD LIBS setting.
1097
dd16e114
PH
1098PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1099 errors. Otherwise a message that provokes a temporary error (when other
1100 messages do not) can cause a whole host to time out.
1101
f7fd3850
PH
1102PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1103 addresses were routed directly to files or pipes from a redirect router.
1104 File deliveries just didn't batch; pipe deliveries might have suffered
1105 odd errors.
1106
d87df92c
PH
1107PH/06 A failure to get a lock for a hints database would erroneously always say
1108 "Failed to get write lock", even when it was really a read lock.
1109
7e9f683d
PH
1110PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1111 of 0600. This has been changed to use the value of the lockfile_mode
1112 option (which defaults to 0600).
1113
bfad5236
PH
1114PH/08 Applied small patch from the Sieve maintainer.
1115
01c490df
PH
1116PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1117 folder from quota calculations, a direct delivery into this folder messed
1118 up the contents of the maildirsize file. This was because the regex was
1119 used only to exclude .Trash (or whatever) when the size of the mailbox
1120 was calculated. There was no check that a delivery was happening into an
1121 excluded directory. This bug has been fixed by ignoring all quota
1122 processing for deliveries into excluded directories.
1123
d6629cdc
PH
1124PH/10 Added the maildirfolder_create_regex option to appendfile.
1125
1cce3af8 1126
214e2000
PH
1127Exim version 4.61
1128-----------------
1129
1130PH/01 The code for finding all the local interface addresses on a FreeBSD
1131 system running IPv6 was broken. This may well have applied to all BSD
1132 systems, as well as to others that have similar system calls. The broken
1133 code found IPv4 interfaces correctly, but gave incorrect values for the
1134 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1135 that it would not match correctly against @[] and not recognize the IPv6
1136 addresses as local.
1137
f9daeae0
PH
1138PH/02 The ipliteral router was not recognizing addresses of the form user@
1139 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1140
7e66e54d
PH
1141PH/03 Added disable_ipv6.
1142
c8ea1597
PH
1143PH/04 Changed $reply_address to use the raw form of the headers instead of the
1144 decoded form, because it is most often used to construct To: headers
1145 lines in autoreplies, and the decoded form may well be syntactically
1146 invalid. However, $reply_address has leading white space removed, and all
1147 newlines turned into spaces so that the autoreply transport does not
1148 grumble.
1149
911f6fde
PH
1150PH/05 If group was specified without a user on a router, and no group or user
1151 was specified on a transport, the group from the router was ignored.
1152
47ca6d6c
PH
1153PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1154 for visible compile-time settings that can be used to change these
1155 numbers, for those that want even more. Backwards compatibility with old
1156 spool files has been maintained. However, going back to a previous Exim
1157 release will lost any variables that are in spool files.
1158
ed0e9820
PH
1159PH/07 Two small changes when running in the test harness: increase delay when
1160 passing a TCP/IP connection to a new process, in case the original
1161 process has to generate a bounce, and remove special handling of
1162 127.0.0.2 (sic), which is no longer necessary.
1163
eff37e47
PH
1164PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1165 be the same on different OS.
1166
1921d2ea
PH
1167PH/09 Moved a debug statement in filter processing to avoid a race problem when
1168 testing.
1169
b3f69ca8
JJ
1170JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1171 whether --show-vars was specified or not
1172
1173JJ/02 exipick: Added support for new ACL variable spool format introduced
1174 in 4.61-PH/06
1175
424a1c63
PH
1176PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1177 syntactically invalid From: or Reply-to: line, and a filter used this to
1178 generate an autoreply, and therefore failed to obtain an address for the
1179 autoreply, Exim could try to deliver to a non-existent relative file
1180 name, causing unrelated and misleading errors. What now happens is that
1181 it logs this as a hard delivery error, but does not attempt to create a
1182 bounce message.
1183
7a100415
PH
1184PH/11 The exinext utility has a -C option for testing purposes, but although
1185 the given file was scanned by exinext itself; it wasn't being passed on
1186 when Exim was called.
1187
19b9dc85
PH
1188PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1189 an end-of-file indication when reading a command response.
1190
309bd837
PH
1191PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1192 compiled. In many other places in Exim, IPv6 addresses are always
1193 recognized, so I have changed this. It also means that IPv4 domain
1194 literals of the form [IPV4:n.n.n.n] are now always recognized.
1195
59e82a2a
PH
1196PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1197 used if the router is not running as root, for example, when verifying at
1198 ACL time, or when using -bh. The debugging output from this situation was
1199 non-existent - all you got was a failure to exec. I have made two
1200 changes:
1201
1202 (a) Failures to set uid/gid, the current directory, or a process leader
1203 in a subprocess such as that created by queryprogram now generate
1204 suitable debugging ouput when -d is set.
1205
1206 (b) The queryprogram router detects when it is not running as root,
1207 outputs suitable debugging information if -d is set, and then runs
1208 the subprocess without attempting to change uid/gid.
1209
9edc04ce
PH
1210PH/15 Minor change to Makefile for building test_host (undocumented testing
1211 feature).
1212
1349e1e5
PH
1213PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1214 additional section of a DNS packet that returns MX or SRV records.
1215 Instead, it always explicitly searches for A/AAAA records. This avoids
1216 major problems that occur when a DNS server includes only records of one
1217 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1218 fixed another bug: if SRV records were looked up and the corresponding
1219 address records were *not* found in the additional section, the port
1220 values from the SRV records were lost.
1221
ea49d0e1
PH
1222PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1223 using the correct key (the original address) when searching the retry
1224 rules in order to find which one to use for generating the retry hint.
1225
064a94c9
PH
1226PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1227 adding the default one. Similarly, if it contains a Reply-To: header, the
1228 errors_reply_to option, if set, is not used.
1229
727071f8
PH
1230PH/19 When calculating a retry time, Exim used to measure the "time since
1231 failure" by looking at the "first failed" field in the retry record. Now
1232 it does not use this if it is later than than the arrival time of the
1233 message. Instead it uses the arrival time. This makes for better
1234 behaviour in cases where some deliveries succeed, thus re-setting the
1235 "first failed" field. An example is a quota failure for a huge message
1236 when small messages continue to be delivered. Without this change, the
1237 "time since failure" will always be short, possible causing more frequent
1238 delivery attempts for the huge message than are intended.
dd16e114 1239 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1240
f78eb7c6
PH
1241PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1242 $1, $2, $3) because the numerical variables can be reset during some
1243 expansion items (e.g. "match"), thereby losing the authentication data.
1244
21c28500
PH
1245PH/21 Make -bV show the size of off_t variables so that the test suite can
1246 decide whether to run tests for quotas > 2G.
1247
1248PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1249 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1250 filecount value is greater than 2G or if a quota value is greater than 2G
1251 on a system where the size of off_t is not greater than 4, a panic error
1252 is given.
1253
1688f43b
PH
1254PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1255 never match. The debug and -bh output now contains an explicit error
1256 message indicating a malformed IPv4 address or mask.
1257
1258PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1259 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1260 PH/23 above applies.
1261
9675b384
PH
1262PH/25 Do not write to syslog when running in the test harness. The only
1263 occasion when this arises is a failure to open the main or panic logs
1264 (for which there is an explicit test).
1265
6a3f1455
PH
1266PH/26 Added the /no_tell option to "control=freeze".
1267
dac79d3e
PH
1268PH/27 If a host name lookup failed very early in a connection, for example, if
1269 the IP address matched host_lookup and the reverse lookup yielded a name
1270 that did not have a forward lookup, an error message of the form "no IP
1271 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1272 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1273
5977a0b3
PH
1274PH/28 An enabling patch from MH: add new function child_open_exim2() which
1275 allows the sender and the authenticated sender to be set when
1276 submitting a message from within Exim. Since child_open_exim() is
1277 documented for local_scan(), the new function should be too.
1278
c91535f3
PH
1279PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1280 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1281 results in an empty string is now treated as unset.
1282
0d46a8c8
PH
1283PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1284
278c6e6c
PH
1285PH/31 Added sender_verify_fail logging option.
1286
2cbb4081
PH
1287PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1288 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1289 tidied the source and removed it altogether.
1290
3eef829e
PH
1291PH/33 When a queue run was abandoned because the load average was too high, a
1292 log line was always written; now it is written only if the queue_run log
1293 selector is set. In addition, the log line for abandonment now contains
1294 information about the queue run such as the pid. This is always present
1295 in "start" and "stop" lines but was omitted from the "abandon" line.
1296
1ab95fa6
PH
1297PH/34 Omit spaces between a header name and the colon in the error message that
1298 is given when verify = headers_syntax fails (if there are lots of them,
1299 the message gets confusing).
1300
230205fc
PH
1301PH/35 Change the default for dns_check_names_pattern to allow slashes within
1302 names, as there are now some PTR records that contain slashes. This check
1303 is only to protect against broken name servers that fall over on strange
1304 characters, so the fact that it applies to all lookups doesn't matter.
1305
75e0e026
PH
1306PH/36 Now that the new test suite is complete, we can remove some of the
1307 special code in Exim that was needed for the old test suite. For example,
1308 sorting DNS records because real resolvers return them in an arbitrary
1309 order. The new test suite's fake resolver always returns records in the
1310 same order.
1311
1312PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1313 bounces) except when queue_only is set, to avoid logging races between
1314 the different processes.
1315
145396a6
PH
1316PH/38 Panic-die if .include specifies a non-absolute path.
1317
3cd34f13
PH
1318PH/39 A tweak to the "H" retry rule from its user.
1319
11121d3d
JJ
1320JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1321 a label. They prevented compilation on older perls.
1322
1323JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1324 a warning to be raised on newish perls.
1325
1326JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1327 on queue. Changes to match documented behaviour of showing count of
1328 messages matching specified criteria.
1329
8def5aaf
PH
1330PH/40 Changed the default ident timeout from 30s to 5s.
1331
929ba01c
PH
1332PH/41 Added support for the use of login_cap features, on those BSD systems
1333 that have them, for controlling the resources used by pipe deliveries.
1334
2632889e
PH
1335PH/42 The content-scanning code uses fopen() to create files in which to put
1336 message data. Previously it was not paying any attention to the mode of
1337 the files. Exim runs with umask(0) because the rest of the code creates
1338 files with open(), and sets the required mode explicitly. Thus, these
1339 files were ending up world-writeable. This was not a big issue, because,
1340 being within the spool directory, they were not world-accessible. I have
1341 created a function called modefopen, which takes an additional mode
1342 argument. It sets umask(777), creates the file, chmods it to the required
1343 mode, then resets the umask. All the relevant calls to fopen() in the
1344 content scanning code have been changed to use this function.
1345
944a9c55
PH
1346PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1347 to 24 hours. This avoids potential overflow problems when processing G
1348 and H retry rules. I suspect nobody ever tinkers with this value.
1349
4a23603b
PH
1350PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1351
4730f942
PH
1352PH/45 When the plaintext authenticator is running as a client, the server's
1353 challenges are checked to ensure they are valid base64 strings. By
1354 default, the authentication attempt is cancelled if an invalid string is
1355 received. Setting client_ignore_invalid_base64 true ignores these errors.
1356 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1357 they are received. Thus, the responses can be made to depend on the
1358 challenges. If an invalid string is ignored, an empty string is placed in
1359 the variable.
1360
30dba1e6
PH
1361PH/46 Messages that are created by the autoreply transport now contains a
1362 References: header, in accordance with RFCs 2822 and 3834.
1363
382afc6b
PH
1364PH/47 Added authenticated_sender_force to the smtp transport.
1365
a86229cf
PH
1366PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1367
50c99ba6
PH
1368PH/49 Installed latest patch from the Sieve maintainer.
1369
d35e429d
PH
1370PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1371 was also set, the appendfile transport was unnecessarily scanning a
1372 directory of message files (e.g. for maildir delivery) to find the count
1373 of files (along with the size), even though it did not need this
1374 information. It now does the scan only if it needs to find either the
1375 size of the count of files.
1376
f90d018c
PH
1377PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1378
75def545
PH
1379PH/52 Two bugs concerned with error handling when the smtp transport is
1380 used in LMTP mode:
1381
1382 (i) Exim was not creating retry information for temporary errors given
1383 for individual recipients after the DATA command when the smtp transport
1384 was used in LMTP mode. This meant that they could be retried too
1385 frequently, and not timed out correctly.
1386
1387 (ii) Exim was setting the flag that allows error details to be returned
1388 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1389 recipients that were returned after the DATA command.
1390
1391PH/53 This is related to PH/52, but is more general: for any failing address,
1392 when detailed error information was permitted to be returned to the
1393 sender, but the error was temporary, then after the final timeout, only
1394 "retry timeout exceeded" was returned. Now it returns the full error as
1395 well as "retry timeout exceeded".
1396
c46782ef
PH
1397PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1398 do this, and (what is worse) MTAs that accept it.
1399
71fafd95
PH
1400PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1401 will now be deprecated.
1402
2c5db4fd
PH
1403PH/56 New os.c-cygwin from the Cygwin maintainer.
1404
9cf6b11a
JJ
1405JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1406 formats (previously only available in exim formats via -bpr, -bpru,
1407 and -bpra. Now also available in native and exiqgrep formats)
1408
1409JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1410 with very large, slow to parse queues
1411
1412JJ/08 exipick: added ! as generic prefix to negate any criteria format
1413
1414JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1415
898d150f
PH
1416PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1417 responses to authentication challenges, though it was showing the
1418 challenges; (ii) I've removed the CR characters from the debug output for
1419 SMTP output lines.
1420
46218253
PH
1421PH/58 Allow for the insertion of a newline as well as a space when a string
1422 is turned into more than one encoded-word during RFC 2047 encoding. The
1423 Sieve code now uses this.
1424
e97957bc
PH
1425PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1426 data_4xx, lost_connection, tls_required.
1427
81e509d7
PH
1428PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1429 message was being sent as an SMTP response.
1430
3d240ff7
PH
1431PH/61 Add -l and -k options to exicyclog.
1432
b37c4101
PH
1433PH/62 When verifying, if an address was redirected to one new address, so that
1434 verification continued, and the new address failed or deferred after
1435 having set something in $address_data, the value of $address_data was not
1436 passed back to the ACL. This was different to the case when no
1437 redirection occurred. The value is now passed back in both cases.
1438
79378e0f
PH
1439PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1440 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1441 use login_cap.h, so on its own it isn't the distinguishing feature. The
1442 new name refers directly to the setclassresources() function.
1443
e49c7bb4
PH
1444PH/65 Added configuration files for NetBSD3.
1445
d114ec46
PH
1446PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1447
f3d7df6c
PH
1448PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1449 is preferred over IPv4.
1450
715ab376
PH
1451PH/68 The bounce_return_message and bounce_return_body options were not being
1452 honoured for bounces generated during the reception of non-SMTP messages.
1453 In particular, this applied to messages rejected by the ACL. This bug has
1454 been fixed. However, if bounce_return_message is true and bounce_return_
1455 body is false, the headers that are returned for a non-SMTP message
1456 include only those that have been read before the error was detected.
1457 (In the case of an ACL rejection, they have all been read.)
1458
6b31b150
PH
1459PH/69 The HTML version of the specification is now built in a directory called
1460 spec_html instead of spec.html, because the latter looks like a path with
1461 a MIME-type, and this confuses some software.
1462
1463PH/70 Catch two compiler warnings in sieve.c.
1464
d515a917
PH
1465PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1466 function verify_get_ident() calls ip_connect() to connect a socket, but
1467 if the "connect()" function timed out, ip_connect() used to close the
1468 socket. However, verify_get_ident() also closes the socket later, and in
1469 between Exim writes to the log, which may get opened at this point. When
1470 the socket was closed in ip_connect(), the log could get the same file
1471 descriptor number as the socket. This naturally causes chaos. The fix is
1472 not to close the socket in ip_connect(); the socket should be closed by
1473 the function that creates it. There was only one place in the code where
1474 this was missing, in the iplookup router, which I don't think anybody now
1475 uses, but I've fixed it anyway.
1476
9b8fadde
PH
1477PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1478 well as to direct DNS lookups. Otherwise the handling of names in host
1479 lists is inconsistent and therefore confusing.
1480
214e2000 1481
5de37277
PH
1482Exim version 4.60
1483-----------------
1484
cc38ddbf
PH
1485PH/01 Two changes to the default runtime configuration:
1486
1487 (1) Move the checks for relay_from_hosts and authenticated clients from
1488 after to before the (commented out) DNS black list checks.
1489
1490 (2) Add control=submission to the relay_from_hosts and authenticated
1491 clients checks, on the grounds that messages accepted by these
1492 statements are most likely to be submissions.
5de37277 1493
72fdd6ae
PH
1494PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1495
1496 (1) Generate an error if the third argument for the ${prvs expansion is
1497 not a single digit.
1498
1499 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1500 string.
1501
1502 (3) Reset the variables that are obtained from the first argument of
1503 ${prvscheck and used in the second argument before leaving the code,
1504 because their memory is reclaimed, so using them afterwards may do
1505 silly things.
1506
1507 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1508 one (it's much easier than Tom thought :-).
1509
1510 (5) Because of (4), we can now allow for the use of $prvscheck_result
1511 inside the third argument.
cb9328de 1512
cb741023
PH
1513PH/03 For some reason, the default setting of PATH when running a command from
1514 a pipe transport was just "/usr/bin". I have changed it to
1515 "/bin:/usr/bin".
1516
f174f16e
PH
1517PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1518 anything to be listed in the output from -bV.
b2f5a032 1519
c25242d7
PH
1520PH/05 When a filter generated an autoreply, the entire To: header line was
1521 quoted in the delivery log line, like this:
1522
1523 => >A.N.Other <ano@some.domain> <original@ddress> ...
1524
1525 This has been changed so that it extracts the operative address. There
1526 may be more than one such address. If so, they are comma-separated, like
1527 this:
1528
1529 => >ano@some.domain,ona@other.domain <original@ddress> ...
1530
82c19f95
PH
1531PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1532 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1533 not being looked up in the rDNS to get a host name, Exim was showing the
1534 IP address twice in Received: lines, even though the IP addresses were
1535 identical. For example:
1536
1537 Received: from [1.2.3.4] (helo=[1.2.3.4])
1538
1539 However, if the real host name was known, it was omitting the HELO data
1540 if it matched the actual IP address. This has been tidied up so that it
1541 doesn't show the same IP address twice.
1542
d7ffbc12
PH
1543PH/07 When both +timestamp and +memory debugging was on, the value given by
1544 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1545 called by the debug printing, thereby overwriting the timestamp buffer.
1546 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1547
9f526266
PH
1548PH/08 When the original message was included in an autoreply transport, it
1549 always said "this is a copy of the message, including all the headers",
1550 even if body_only or headers_only was set. It now gives an appropriate
1551 message.
1552
87fcc8b9
PH
1553PH/09 Applied a patch from the Sieve maintainer which:
1554
1555 o fixes some comments
1556 o adds the (disabled) notify extension core
1557 o adds some debug output for the result of if/elsif tests
1558 o points to the current vacation draft in the documentation
1559 and documents the missing references header update
1560
1561 and most important:
1562
1563 o fixes a bug in processing the envelope test (when testing
1564 multiple envelope elements, the last element determinted the
1565 result)
1566
456682f5
PH
1567PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1568 Electronic Mail") by including:
1569
1570 Auto-submitted: auto-generated
1571
1572 in the messages that it generates (bounce messages and others, such as
1573 warnings). In the case of bounce messages for non-SMTP mesages, there was
1574 also a typo: it was using "Auto_submitted" (underscore instead of
1575 hyphen). Since every message generated by Exim is necessarily in response
1576 to another message, thes have all been changed to:
1577
1578 Auto-Submitted: auto-replied
1579
1580 in accordance with these statements in the RFC:
1581
1582 The auto-replied keyword:
1583
1584 - SHOULD be used on messages sent in direct response to another
1585 message by an automatic process,
1586
1587 - MUST NOT be used on manually-generated messages,
1588
1589 - MAY be used on Delivery Status Notifications (DSNs) and Message
1590 Disposition Notifications (MDNs),
1591
1592 - MUST NOT be used on messages generated by automatic or periodic
1593 processes, except for messages which are automatic responses to
1594 other messages.
1595
3e46c1aa
PH
1596PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1597 to the default Received: header definition.
456682f5 1598
49826d12
PH
1599PH/12 Added log selector acl_warn_skipped (default on).
1600
eba0c039
PH
1601PH/13 After a successful wildlsearch lookup, discard the values of numeric
1602 variables because (a) they are in the wrong storage pool and (b) even if
1603 they were copied, it wouldn't work properly because of the caching.
1604
a0d6ba8a
PH
1605PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1606 checking when decoding. Apparently there are clients that generate
1607 overlong encoded strings. Why am I not surprised?
1608
f0917727
PH
1609PH/15 If the first argument of "${if match_address" was not empty, but did not
1610 contain an "@" character, Exim crashed. Now it writes a panic log message
1611 and treats the condition as false.
1612
096fee00
PH
1613PH/16 In autoreply, treat an empty string for "once" the same as unset.
1614
024bd3c2
PH
1615PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1616 extension "envelope-auth". The code is finished and in agreement with
1617 other implementations, but there is no documentation so far and in fact,
1618 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1619 not changing the active code.
1620
1621 Print executed "if" and "elsif" statements when debugging is used. This
1622 helps a great deal to understand what a filter does.
1623
1624 Document more things not specified clearly in RFC3028. I had all this
1625 sorted out, when out of a sudden new issues came to my mind. Oops."
1626
df199fec
PH
1627PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1628 (Bugzilla #53).
1629
d27f1df3
PH
1630PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1631 canonical form (as documented). However, after a host name lookup from
1632 the IP address, check_host() was doing a simple string comparison with
1633 addresses acquired from the DNS when checking that the found name did
1634 have the original IP as one of its addresses. Since any found IPv6
1635 addresses are likely to be in abbreviated form, the comparison could
1636 fail. Luckily, there already exists a function for doing the comparison
1637 by converting both addresses to binary, so now that is used instead of
1638 the text comparison.
1639
96776534
PH
1640PH/20 There was another similar case to PH/19, when a complete host name was
1641 given in a host list; looking up its IP address could give an abbreviated
1642 form, whereas the current host's name might or might not be abbreviated.
1643 The same fix has been applied.
1644
5de37277 1645
9a799bc0
PH
1646Exim version 4.54
1647-----------------
1648
1649PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1650 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1651 It now does.
1652
99a4b039
PH
1653PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1654 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1655
1656PH/03 Typo: missing ".o" in src/pcre/Makefile.
1657
4b233853
PH
1658PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1659 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1660 Also, for "Auto-Submitted", treat anything other than "no" as
1661 non-personal, in accordance with RFC 3834. (Previously it treated
1662 anything starting "auto-" as non-personal.)
1663
8857ccfd
PH
1664TF/01 The control=submission/name=... option had a problem with syntax
1665 errors if the name included a slash character. The /name= option
1666 now slurps the rest of the string, so it can include any characters
1667 but it must come last in the list of options (after /sender_retain
1668 or /domain=).
1669
433a2980
PH
1670PH/05 Some modifications to the interface to the fake nameserver for the new
1671 testing suite.
1672
3e46c1aa 1673
9a799bc0 1674
e3a311ba
TK
1675Exim version 4.53
1676-----------------
1677
1678TK/01 Added the "success_on_redirect" address verification option. See
1679 NewStuff for rationale and an example.
1680
13b685f9
PH
1681PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1682
395ff96d
PH
1683PH/02 Patch to exigrep to allow it to work on syslog lines.
1684
5b68f6e4
PH
1685PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1686 fread() to skip over the body file's header line, because in Cygwin the
1687 header line is locked and is inaccessible.
1688
1ab52c69
PH
1689PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1690 co-exist for some time) to make it clear that it is the Exim ID that is
1691 referenced, not the Message-ID: header line.
1692
b07e6aa3
PH
1693PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1694 string_format() function, because snprintf() does not exist on all
1695 operating systems.
1696
254e032f
PH
1697PH/06 The use of forbid_filter_existstest now also locks out the use of the
1698 ${stat: expansion item.
1699
3af76a81
PH
1700PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1701 protocol synchronization error", to keep the pedants happy.
1702
2548ba04
PH
1703PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1704 well as for IRIX systems, when gcc is being used. See the host.c source
1705 file for comments.
1706
b6c6011d
PH
1707PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1708
cf39cf57
PH
1709PH/10 Named domain lists were not working if used in a queue_smtp_domains
1710 setting.
1711
f1513293
PH
1712PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1713 transport and to the smtp transport in LMTP mode.
1714
727549a4
PH
1715TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1716
af46795e
PH
1717PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1718 run a filter in a subprocess. This could lead to confusion in subsequent
1719 lookups in the parent process. There should also be a search_tidyup() at
1720 the end of the subprocess.
1721
d7b47fd0
PH
1722PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1723 only if the host matched helo_try_verify_hosts, which caused the
1724 verification to occur when the EHLO/HELO command was issued. The ACL just
1725 tested the remembered result. Now, if a previous verification attempt has
1726 not happened, "verify = helo" does it there and then.
1727
ee744174
JJ
1728JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1729
b582ab87
PH
1730TK/03 Fix log output including CR from clamd.
1731
41a13e0a
PH
1732PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1733 exist provoked a memory error which could cause a segfault.
1734
f625cc5a
PH
1735PH/15 Installed PCRE 6.2
1736
1737PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1738
21f7af35
PH
1739PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1740 of the problem. Specifically, suggested +O2 rather than +O1 for the
1741 HP-UX compiler.
1742
31480e42
PH
1743PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1744
2d280592
PH
1745PH/20 If a delivery was routed to a non-standard port by means of an SRV
1746 record, the port was not correctly logged when the outgoing_port log
1747 selector was set (it logged the transort's default port).
1748
7cd1141b
PH
1749PH/21 Added support for host-specific ports to manualroute, queryprogram,
1750 fallback_hosts, and "hosts" in the smtp transport.
1751
1752PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1753 host errors such as "Connection refused".
1754
750af86e
PH
1755PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1756 authentication with radiusclient 0.4.9:
1757
1758 - Error returned from rc_read_config was caught wrongly
1759 - Username/password not passed on to radius server due to wrong length.
1760
1761 The presumption is that some radiusclient API changes for 4.51/PH/17
1762 were not taken care of correctly. The code is still untested by me (my
1763 Linux distribution still has 0.3.2 of radiusclient), but it was
1764 contributed by a Radius user.
1765
1766PH/24 When doing a callout, the value of $domain wasn't set correctly when
1767 expanding the "port" option of the smtp transport.
1768
4304270b
TK
1769TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1770 while reading a MIME header. Thanks to Tom Hughes for a patch.
1771
750af86e
PH
1772PH/24 Include config.h inside local_scan.h so that configuration settings are
1773 available.
1774
64ffc24f
PH
1775PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1776 that in an ACL for RCPT (for example), you can examine exactly what was
1777 received.
1778
5dd9625b
PH
1779PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1780 commands, but it was not correctly comparing the address with the actual
1781 client host address. Thus, it would show the EHLO address in Received:
1782 header lines when this was not necessary.
1783
5591031b
PH
1784PH/27 Added the % operator to ${eval:}.
1785
ba18e66a
PH
1786PH/28 Exim tries to create and chdir to its spool directory when it starts;
1787 it should be ignoring failures (because with -C, for example, it has lost
1788 privilege). It wasn't ignoring creation failures other than "already
1789 exists".
1790
9cec981f
PH
1791PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1792 -bV or -d is used.
1793
aa2b5c79
PH
1794PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1795 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1796 too many continuations, the temporary file was not being removed, and the
1797 return code was incorrect.
aa2b5c79 1798
48a53b7f
PH
1799PH/31 Missing "BOOL" in function definition in filtertest.c.
1800
1c59d63b
PH
1801PH/32 Applied Sieve patches from the maintainer.
1802
671012da
TK
1803TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1804
1509d3a8
PH
1805PH/33 Added "verify = not_blind".
1806
1807PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1808 Local/Makefile (with some defaults set). These are used in built scripts
1809 such as exicyclog, but they have never been used in the exim_install
1810 script (though there are many overriding facilities there). I have
1811 arranged that the exim_install script now takes note of these two
1812 settings.
1813
1814PH/35 Installed configuration files for Dragonfly.
1815
2fe1a124
PH
1816PH/36 When a locally submitted message by a trusted user did not contain a
1817 From: header, and the sender address was obtained from -f or from an SMTP
1818 MAIL command, and the trusted user did not use -F to supply a sender
1819 name, $originator_name was incorrectly used when constructing a From:
1820 header. Furthermore, $originator_name was used for submission mode
1821 messages from external hosts without From: headers in a similar way,
1822 which is clearly wrong.
1823
8800895a
PH
1824PH/37 Added control=suppress_local_fixups.
1825
ccfdb010
PH
1826PH/38 When log_selector = +received_sender was set, and the addition of the
1827 sender made the log line's construction buffer exactly full, or one byte
1828 less than full, an overflow happened when the terminating "\n" was
1829 subsequently added.
1830
1130bfb0
PH
1831PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1832 when the result of a list match is failure because a DNS lookup failed.
1833
ebcb507f
PH
1834PH/40 RM_COMMAND is now used in the building process.
1835
c35e155c
PH
1836PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1837 the "build-* directories that it finds.
1838
95d1f782
PH
1839PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1840 address in a domain literal was a prefix of an interface address.
1841
fd6de02e
PH
1842PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1843 when verifying a sender address, unless rewrite_headers is false.
1844
58de37c5
PH
1845PH/44 Wrote a long comment about why errors_to addresses are verified as
1846 recipients, not senders.
1847
261cf466
TF
1848TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1849 the ratelimit ACL was added.
1850
3ee512ff
PH
1851PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1852
e08c430f
PH
1853PH/46 Added extra information about PostgreSQL errors to the error string.
1854
bef5a11f
PH
1855PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1856 avoiding the need to install special zones in a real server. This is
1857 backwards compatible; if it can't find the fake resolver, it drops back.
1858 Thus, both old and new test suites can be run.
1859
7546de58
TF
1860TF/02 Added util/ratelimit.pl
1861
e5d5a95f
TF
1862TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1863 clock is set back in time.
1864
2e88a017
TF
1865TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1866 Candler <B.Candler@pobox.com>.
1867
a5f65aa4
TF
1868TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1869 OK for addresses that are the result of redirections.
1870
e7726cbf
PH
1871PH/48 A number of further additions for the benefit of the new test suite,
1872 including a fake gethostbyname() that interfaces to the fake DNS resolver
1873 (see PH/47 above).
1874
a7fdad5b
TF
1875TF/06 The fix for widen_domains has also been applied to qualify_single and
1876 search_parents which are the other dnslookup options that can cause
1877 header rewrites.
1878
6af56900
PH
1879PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1880 type ("H").
1881
0925ede6
PH
1882PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1883
66afa403
TF
1884TF/07 Exim produced the error message "an SRV record indicated no SMTP
1885 service" if it encountered an MX record with an empty target hostname.
1886 The message is now "an MX or SRV record indicated no SMTP service".
1887
0154e85a
TF
1888TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1889 if the DNS of the sending site is misconfigured. This is quite a
1890 common situation. This change restores the behaviour of treating a
1891 helo verification defer as a failure.
1892
16f12c76
PH
1893PH/51 If self=fail was set on a router, the bounce message did not include the
1894 actual error message.
1895
bbe902f0 1896
e5a9dba6
PH
1897Exim version 4.52
1898-----------------
1899
1900TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1901
22c3b60b
PH
1902PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1903 command itself ended in error, the underlying message about the transport
1904 filter timeout was being overwritten with the pipe command error. Now the
1905 underlying error message should be appended to the second error message.
1906
06a9b4b5
PH
1907TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1908
c1ac6996
PH
1909PH/02 Reduce the amount of output that "make" produces by default. Full output
1910 can still be requested.
1911
9c7a242c
PH
1912PH/03 The warning log line about a condition test deferring for a "warn" verb
1913 was being output only once per connection, rather than after each
1914 occurrence (because it was using the same function as for successful
1915 "warn" verbs). This seems wrong, so I have changed it.
1916
87ba3f5f
PH
1917TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1918 it should not have, which might have caused a crash in the right
1919 circumstances, but probably never did.
1920
1921PH/04 Installed a modified version of Tony Finch's patch to make submission
1922 mode fix the return path as well as the Sender: header line, and to
1923 add a /name= option so that you can make the user's friendly name appear
1924 in the header line.
1925
29aba418
TF
1926TF/03 Added the control = fakedefer ACL modifier.
1927
fe0dab11
TF
1928TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1929 Mark Lowes for thorough testing.
870f6ba8 1930
11d337a4
TK
1931TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1932
1933TK/03 Merged latest SRS patch from Miles Wilton.
1934
415c8f3b
PH
1935PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1936 with the definition in sysexits.h (which is #included earlier).
1937 Fortunately, Exim does not actually use EX_OK. The code used to try to
1938 preserve the sysexits.h value, by assumimg that macro definitions were
1939 scanned for macro replacements. I have been disabused of this notion,
1940 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1941
958541e9
PH
1942PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1943 in the smtp transport. When a block could not be written in a single
1944 write() function, the timeout was being re-applied to each part-write.
1945 This seems wrong - if the receiver was accepting one byte at a time it
1946 would take for ever. The timeout is now adjusted when this happens. It
1947 doesn't have to be particularly precise.
1948
c206415f
TK
1949TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
1950 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
1951
2a4be8f9
PH
1952PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
1953 without a domain if the check to <postmaster@domain> fails.
1954
1cba11c5
SC
1955SC/01 Eximstats: added -xls and the ability to specify output files
1956 (patch written by Frank Heydlauf).
1957
1958SC/02 Eximstats: use FileHandles for outputing results.
1959
1960SC/03 Eximstats: allow any combination of xls, txt, and html output.
1961
1962SC/04 Eximstats: fixed display of large numbers with -nvr option
1963
1964SC/05 Eximstats: fixed merging of reports with empty tables.
1965
1966SC/06 Eximstats: added the -include_original_destination flag
1967
1968SC/07 Eximstats: removed tabs and trailing whitespace.
1969
1005d00e
TK
1970TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
1971
1972TK/06 MBOX spool code: Add real "From " MBOX separator line
1973 so the .eml file is really in mbox format (even though
1974 most programs do not really care). Patch from Alex Miller.
1975
1976TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
1977 The latter is generated from $received_to and is only set if the
1978 message has one envelope recipient. SA can use these headers,
1979 obviously out-of-the-box. Patch from Alex Miller.
1980
9b4768fa
PH
1981PH/08 The ${def test on a variable was returning false if the variable's
1982 value was "0", contrary to what the specification has always said!
1983 The result should be true unless the variable is empty.
1984
1985PH/09 The syntax error of a character other than { following "${if
1986 def:variable_name" (after optional whitespace) was not being diagnosed.
1987 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
1988 accidental colon was present, for example, could give incorrect results.
1989
0d7eb84a
PH
1990PH/10 Tidied the code in a number of places where the st_size field of a stat()
1991 result is used (not including appendfile, where other changes are about
1992 to be made).
1993
1994PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
1995 This involved changing a lot of size variables from int to off_t. It
1996 should work with maildirs and everything.
1997
40727bee
TK
1998TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
1999 spamd dying while we are connected to it.
2000
554d2369
TF
2001TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2002 <jgh@wizmail.org>
2003
1f922db1
PH
2004PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2005 function for BDB 4.3.
2006
ef213c3b
PH
2007PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2008
8ac170f3
PH
2009PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2010 the sources for PCRE have been re-arranged and more files are now
2011 involved.
2012
b1c749bb
PH
2013PH/15 The code I had for printing potentially long long variables in PH/11
2014 above was not the best (it lost precision). The length of off_t variables
2015 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2016 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2017 to be "long long int" or "long int". This is needed for the internal
2018 formatting function string_vformat().
b1c749bb 2019
4aac9b49
PH
2020PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2021 the configuration file to be ":syslog", then the script "guesses" where
2022 the logs files are, rather than using the compiled in default. In our
2023 case the guess is not the same as the compiled default, so the script
2024 suddenly stopped working when I started to use syslog. The patch checks
2025 to see if log_file_path is "". If so, it attempts to read it from exim
2026 with no configuration file to get the compiled in version, before it
2027 falls back to the previous guessing code."
2028
294520c8
TK
2029TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2030 implementing BATV in an Exim configuration. See NewStuff for the gory
2031 details.
2032
5bd022fe
PH
2033PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2034 Makefile that are specific to HP-UX.
2035
90e9ce59
PH
2036PH/18 If the "use_postmaster" option was set for a recipient callout together
2037 with the "random" option, the postmaster address was used as the MAIL
2038 FROM address for the random test, but not for the subsequent recipient
2039 test. It is now used for both.
2040
5ea81592
PH
2041PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2042 patch removes a few documentation additions to RFC 3028, because the
2043 latest draft now contains them. It adds the new en;ascii-case comparator
2044 and a new error check for 8bit text in MIME parts. Comparator and
2045 require names are now matched exactly. I enabled the subaddress
2046 extension, but it is not well tested yet (read: it works for me)."
2047
c6c2dc1d
PH
2048PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2049 rework some of the code of TK/09 above to avoid the hardwired use of
2050 "%lld" and "long long". Replaced the call to snprintf() with a call to
2051 string_vformat().
2052
fffffe4c
PH
2053PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2054 records point to non-existent hosts", "retry timeout exceeded", and
2055 "retry time not reached for any host after a long failure period".
ca02eafb 2056
9a26b6b2
PH
2057PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2058 experimental DomainKeys support:
2059
2060 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2061 (2) On an error such as an illegally used "control", the wrong name for
2062 the control was given.
2063
2064 These problems did NOT occur unless DomainKeys support was compiled.
2065
4aee0225
PH
2066PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2067
32d668a5
PH
2068PH/24 Added ${if match_ip condition.
2069
8187c3f3
PH
2070PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2071 databases so that it will be absolutely obvious if a crash occurs in the
2072 DB library. This is a regular occurrence (often caused by mis-matched
2073 db.h files).
2074
ff790e47 2075PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2076 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2077 picked up on a user's system that detects such things. There doesn't seem
2078 to be a gcc warning option for this - only an attribute that has to be
2079 put on the function's prototype. It seems that in Fedora Core 4 they have
2080 set this on a number of new functions. No doubt there will be more in due
2081 course.
ff790e47 2082
5417f6d1
PH
2083PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2084 specify a transport. However, if an address that was verified by such a
2085 router was the subject of a callout, Exim crashed because it tried to
2086 read the rcpt_include_affixes from the non-existent transport. Now it
2087 just assumes that the setting of that option is false. This bug was
2088 introduced by 4.51/PH/31.
2089
59cf8544
PH
2090PH/28 Changed -d+all to exclude +memory, because that information is very
2091 rarely of interest, but it makes the output a lot bigger. People tend to
2092 do -d+all out of habit.
2093
e7ad8a65
PH
2094PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2095 code in os-type was giving problems when libc.so lives in lib64, like on
2096 x86_64 Fedora Core.
2097
ade42478
PH
2098PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2099 aren't the modern standard, and it seems that some systems' include files
2100 don't always have them. Exim was already checking for some of the newer
2101 ones like T_AAAA, and defining it itself. I've added checks for all the
2102 record types that Exim uses.
2103
182ad5cf
PH
2104PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2105 not automatically generating a new one, as it is supposed to. This
2106 prevented TLS from working. If the file did exist, but contained invalid
2107 data, a new version was generated, as expected. It was only the case of a
2108 non-existent file that was broken.
2109
b0d9fc80
TK
2110TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2111 with a change in libdomainkeys > 0.64.
2112
2113TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2114 from DNS. If the selector record carries the flag, it now has
2115 precedence over the domain-wide flag.
2116
2117TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2118
47c7a64a
PH
2119PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2120 the use of a port name that isn't defined in /etc/services) occurred, the
2121 message was deferred as in a normal delivery, and thus remained on the
2122 spool, instead of being failed because of the mua_wrapper setting. This
2123 is now fixed, and I tidied up some of the mua_wrapper messages at the
2124 same time.
2125
a388bce4
SC
2126SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2127 the messages in a hash of arrays rather than using individual hashes.
2128 This is a bit cleaner and results in dramatic memory savings, albeit
2129 at a slight CPU cost.
2130
2131SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2132 as requested by Marc Sherman.
2133
2134SC/10 Eximstats: added histograms for user specified patterns as requested
2135 by Marc Sherman.
2136
0793e4ed
SC
2137SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2138
c58b88df
PH
2139PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2140 fopen() in the content-scanning modules that did not already have it.
2141
e7ad8a65 2142
7982096b
PH
2143Exim version 4.51
2144-----------------
2145
1a46a8c5
PH
2146TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2147 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2148
2f079f46 2149TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2150
2151TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2152
2153PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2154 to test Sieve filters that use "vacation".
2155
2156PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2157 that changes the way the GnuTLS parameters are stored in the cache file.
2158 The new format can be generated externally. For backward compatibility,
2159 if the data in the cache doesn't make sense, Exim assumes it has read an
2160 old-format file, and it generates new data and writes a new file. This
2161 means that you can't go back to an older release without removing the
2162 file.
2163
2164PH/03 A redirect router that has both "unseen" and "one_time" set does not
2165 work if there are any delivery delays because "one_time" forces the
2166 parent to be marked "delivered", so its unseen clone is never tried
2167 again. For this reason, Exim now forbids the simultaneous setting of
2168 these two options.
2169
2170PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2171 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2172 entry if you want to know the details. The fix, however, neglected to
2173 consider the case when local delivery batching is involved. The test for
2174 "previously delivered" was not happening when checking to see if an
2175 address could be batched with a previous (undelivered) one; under
2176 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2177 address.
1a46a8c5
PH
2178
2179PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2180 in its include files, and this causes problems building Exim.
2181
2182PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2183 header_syntax) but Exim was just ignoring anything given after a slash.
2184 In particular, this caused confusion with an attempt to use "verify =
2185 reverse_host_lookup/defer_ok". An error is now given when options are
2186 supplied for verify items that do not have them. (Maybe reverse_host_
2187 lookup should have a defer_ok option, but that's a different point.)
2188
2189PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2190 defined by RFC 821) to 2048, because there were problems with some AUTH
2191 commands, and RFC 1869 says the size should be increased for extended
2192 SMTP commands that take arguments.
2193
2194PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2195 Finch).
2196
2197PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2198 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2199
49c2d5ea
PH
2200PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2201 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2202 whatever). Otherwise the password may appear in the log. Following change
2203 PH/42 below, there is no longer a chance of it appearing in a bounce
2204 message.
49c2d5ea 2205
bf759a8b
PH
2206PH/11 Installed exipick version 20050225.0 from John Jetmore.
2207
83364d30
PH
2208PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2209 of its addresses was ever tried. (Bugzilla bug #2.)
2210
7999bbd7
PH
2211PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2212 the result incorrectly in the debug output. (It correctly added a newline
2213 to what was transported.)
2214
7dbf77c9
PH
2215TF/01 Added $received_time.
2216
74e0617f
PH
2217PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2218 commented out examples of how to interface to a virus scanner and to
2219 SpamAssassin. Also added commented examples of av_scanner and
2220 spamd_address settings.
2221
2f079f46
PH
2222PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2223 and controls are allowed in which ACLs. There were a couple of minor
2224 errors. Some of the entries in the conditions table (which is a table of
2225 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2226 negation of where the condition IS allowed.
2227
8c841523
PH
2228PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2229
7766a4f0
PH
2230PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2231 header file does not have a version number, so I've had to invent a new
2232 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2233 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2234 radiusclient), but it was contributed by a Radius user.
2235
8b417f2c
PH
2236PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2237 files or directories, for OpenSSL.
2238
901f42cb
PH
2239PH/19 When an Exim process that is running as root has to create an Exim log
2240 file, it does so in a subprocess that runs as exim:exim so as to get the
2241 ownership right at creation (otherwise, other Exim processes might see
2242 the file with the wrong ownership). There was no test for failure of this
2243 fork() call, which would lead to the process getting stuck as it waited
2244 for a non-existent subprocess. Forks do occasionally fail when resources
2245 run out. I reviewed all the other calls to fork(); they all seem to check
2246 for failure.
2247
f9b9210e
PH
2248PH/20 When checking for unexpected SMTP input at connect time (before writing
2249 the banner), Exim was not dealing correctly with a non-positive return
2250 from the read() function. If the client had disconnected by this time,
2251 the result was a log entry for a synchronization error with an empty
2252 string after "input=" when read() returned zero. If read() returned -1
2253 (an event I could not check), uninitialized data bytes were printed.
2254 There were reports of junk text (parts of files, etc) appearing after
2255 "input=".
2256
54cdb463
PH
2257PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2258
cf00dad6
PH
2259PH/22 Added support for macro redefinition, and (re)definition in between
2260 driver and ACL definitions.
2261
acb1b346
PH
2262PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2263 forgetting to use the resulting value; it was using the unexpanded value.
2264
c5ddb310
PH
2265PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2266 hadn't been configured. The fix is from Juergen Kreileder, who
2267 understands it better than I do:
2268
2269 "Here's what I see happening with three configured cyrus_sasl
2270 authenticators configured (plain, login, cram-md5):
2271
2272 On startup auth_cyrus_sasl_init() gets called for each of these.
2273 This means three calls to sasl_listmech() without a specified mech_list.
2274 => SASL tests which mechs of all available mechs actually work
2275 => three warnings about OTP not working
2276 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2277
2278 With the patch, sasl_listmech() also gets called three times. But now
2279 SASL's mech_list option is set to the server_mech specified in the the
2280 authenticator. Or in other words, the answer from sasl_listmech()
2281 gets limited to just the mech you're testing for (which is different
2282 for each call.)
2283 => the return list contains just 'plain' or 'login', 'cram-md5' or
2284 nothing depending on the value of ob->server_mech.
2285
2286 I've just tested the patch: Authentication still works fine,
2287 unavailable mechs specified in the exim configuration are still
2288 caught, and the auth.log warnings about OTP are gone."
2289
31619da6
PH
2290PH/25 When debugging is enabled, the contents of the command line are added
2291 to the debugging output, even when log_selector=+arguments is not
2292 specified.
2293
bebaf0fc
PH
2294PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2295 answer is "GNU", and only if the return is "GNU/something" is the answer
2296 "Linux".
2297
475fe28a
PH
2298PH/27 $acl_verify_message is now set immediately after the failure of a
2299 verification in an ACL, and so is available in subsequent modifiers. In
2300 particular, the message can be preserved by coding like this:
2301
2302 warn !verify = sender
2303 set acl_m0 = $acl_verify_message
2304
2305 Previously, $acl_verify_message was set only while expanding "message"
2306 and "log_message" when a very denied access.
2307
7e8bec7a
PH
2308PH/28 Modified OS/os.c-Linux with
2309
2310 -#ifndef OS_LOAD_AVERAGE
2311 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2312
2313 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2314 nomenclature these days.)
2315
e4a89c47
PH
2316PH/29 Installed patch from the Sieve maintainer that adds the options
2317 sieve_useraddress and sieve_subaddress to the redirect router.
2318
5ca2a9a1
PH
2319PH/30 In these circumstances:
2320 . Two addresses routed to the same list of hosts;
2321 . First host does not offer TLS;
2322 . First host accepts first address;
2323 . First host gives temporary error to second address;
2324 . Second host offers TLS and a TLS session is established;
2325 . Second host accepts second address.
2326 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2327 and peerdn, if requested) that were in fact used only for the second
2328 address.
7e8bec7a 2329
c688b954
PH
2330PH/31 When doing a callout as part of verifying an address, Exim was not paying
2331 attention to any local part prefix or suffix that was matched by the
2332 router that accepted the address. It now behaves in the same way as it
2333 does for delivery: the affixes are removed from the local part unless
2334 rcpt_include_affixes is set on the transport.
2335
fed77020
PH
2336PH/32 Add the sender address, as F=<...>, to the log line when logging a
2337 timeout during the DATA phase of an incoming message.
2338
7fe1560f
PH
2339PH/33 Sieve envelope tests were broken for match types other than :is. I have
2340 applied a patch sanctioned by the Sieve maintainer.
c688b954 2341
ebb6e6d5
PH
2342PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2343 the uid or gid is negative. A case of a negative gid caused this to be
2344 noticed. The fix allows for either to be negative.
2345
9c4e8f60
PH
2346PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2347 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2348 overlooked.
2349
2350PH/36 The change PH/12 above was broken. Fixed it.
2351
d7174846
PH
2352PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2353 the grounds that routing the same address twice would always produce the
2354 same answer. This might have been true once, but it is certainly no
2355 longer true now. Routing a child address may depend on the previous
2356 routing that produced that child. Some complicated redirection strategies
2357 went wrong when messages had multiple recipients, and made Exim's
2358 behaviour dependent on the order in which the addresses were given.
2359
2360 I have moved the duplicate checking until after the routing is complete.
2361 Exim scans the addresses that are assigned to local and remote
2362 transports, and removes any duplicates. This means that more work will be
2363 done, as duplicates will always all be routed, but duplicates are
2364 presumably rare, so I don't expect this is of any significance.
2365
2366 For deliveries to pipes, files, and autoreplies, the duplicate checking
2367 still happens during the routing process, since they are not going to be
2368 routed further.
2369
cfe75fc3
PH
2370PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2371 It corrects a timeout issue with spamd. This is Ian's comment: "The
2372 background is that sometimes spamd either never reads data from a
2373 connection it has accepted, or it never writes response data. The exiscan
2374 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2375 blindly assumes that writes won't block so it may never time out."
2376
be22d70e
PH
2377PH/39 Allow G after quota size as well as K and M.
2378
0612b098
PH
2379PH/40 The value set for $authenticated_id in an authenticator may not contain
2380 binary zeroes or newlines because the value is written to log lines and
2381 to spool files. There was no check on this. Now the value is run through
2382 the string_printing() function so that such characters are converted to
2383 printable escape sequences.
2384
2e0c1448
PH
2385PH/41 $message_linecount is a new variable that contains the total number of
2386 lines in the message. Compare $body_linecount, which is the count for the
2387 body only.
2388
447d236c
PH
2389PH/42 Exim no longer gives details of delivery errors for specific addresses in
2390 bounce and delay warning messages, except in certain special cases, which
2391 are as follows:
2392
2393 (a) An SMTP error message from a remote host;
2394 (b) A message specified in a :fail: redirection;
2395 (c) A message specified in a "fail" command in a system filter;
2396 (d) A message specified in a FAIL return from the queryprogram router;
2397 (e) A message specified by the cannot_route_message router option.
2398
2399 In these cases only, Exim does include the error details in bounce and
2400 warning messages. There are also a few cases where bland messages such
2401 as "unrouteable address" or "local delivery error" are given.
2402
d20976dc
PH
2403PH/43 $value is now also set for the "else" part of a ${run expansion.
2404
f656d135
PH
2405PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2406 being worked on, but at least Exim now implements the latest version to
2407 play with."
2408
2e2a30b4
PH
2409PH/45 In a pipe transport, although a timeout while waiting for the pipe
2410 process to complete was treated as a delivery failure, a timeout while
2411 writing the message to the pipe was logged, but erroneously treated as a
2412 successful delivery. Such timeouts include transport filter timeouts. For
2413 consistency with the overall process timeout, these timeouts are now
2414 treated as errors, giving rise to delivery failures by default. However,
2415 there is now a new Boolean option for the pipe transport called
2416 timeout_defer, which, if set TRUE, converts the failures into defers for
2417 both kinds of timeout. A transport filter timeout is now identified in
2418 the log output.
2419
9176e9f0
PH
2420PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2421 systems where "make" and "gmake" are different, calling "gmake" at top
2422 level broke things. I've arranged for the value of $(MAKE) to be passed
2423 from the Makefile to this script so that it can call the same version of
2424 "make".
2425
7982096b 2426
bbe902f0
PH
2427A note about Exim versions 4.44 and 4.50
2428----------------------------------------
2429
2430Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2431changes of various kinds. As a consequence, a big documentation update was
2432needed. This delayed the release for rather longer than seemed good, especially
2433in the light of a couple of (minor) security issues. Therefore, the changes
2434that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2435release. So 4.44 and 4.50 are in effect two different branches that both start
2436from 4.43.
2437
2438I have left the 4.50 change log unchanged; it contains all the changes since
24394.43. The change log for 4.44 is below; many of its items are identical to
2440those for 4.50. This seems to be the most sensible way to preserve the
2441historical information.
2442
2443
f7b63901 2444Exim version 4.50
495ae4b0
PH
2445-----------------
2446
5fe762f6
PH
2447 1. Minor wording change to the doc/README.SIEVE file.
2448
139059f6 2449 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2450 computation of the current number of files was incorrect.
495ae4b0 2451
7086e875
PH
2452 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2453 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2454 place.
2455
35af9f61
PH
2456 4. Give more explanation in the error message when the command for a transport
2457 filter fails to execute.
2458
b668c215
PH
2459 5. There are several places where Exim runs a non-Exim command in a
2460 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2461 was being done only for the command run by the queryprogram router. It is
2462 now done for all such subprocesses. The other cases are: ${run, transport
2463 filters, and the commands run by the lmtp and pipe transports.
2464
a494b1e1
PH
2465 6. Added CONFIGURE_GROUP build-time option.
2466
2467 7. Some older OS have a limit of 256 on the maximum number of file
2468 descriptors. Exim was using setrlimit() to set 1000 as a large value
2469 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2470 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2471
c5fcb476
PH
2472 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2473 was an oversight, and furthermore, ever since the addition of extra
2474 controls (e.g. 4.43/32), the checks on when to allow different forms of
2475 "control" were broken. There should now be diagnostics for all cases when a
2476 control that does not make sense is encountered.
2477
69358f02
PH
2478 9. Added the /retain_sender option to "control=submission".
2479
5be20824
PH
248010. $recipients is now available in the predata ACL (oversight).
2481
eb2c0248
PH
248211. Tidy the search cache before the fork to do a delivery from a message
2483 received from the command line. Otherwise the child will trigger a lookup
2484 failure and thereby defer the delivery if it tries to use (for example) a
2485 cached ldap connection that the parent has called unbind on.
2486
2a3eea10
PH
248712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2488 of $address_data from the recipient verification was clobbered by the
2489 sender verification.
2490
249113. The value of address_data from a sender verification is now available in
2492 $sender_address_data in subsequent conditions in the ACL statement.
2493
23c7ff99
PH
249414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2495
4deaf07d
PH
249615. Added a new option "connect=<time>" to callout options, to set a different
2497 connection timeout.
2498
926e1192
PH
249916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2500 was its contents. (It was OK if the option was not defined at all.)
2501
650edc6f
PH
250217. A "Completed" log line is now written for messages that are removed from
2503 the spool by the -Mrm option.
2504
2c7db3f5
PH
250518. New variables $sender_verify_failure and $recipient_verify_failure contain
2506 information about exactly what failed.
2507
3d235903
PH
250819. Added -dd to debug only the daemon process.
2509
7c7ad977
PH
251020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2511 handles timeouts, both on the server side and network timeouts. Renamed the
2512 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2513
981756db
PH
251421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2515 It is now set to "smtps".
2516
d4eb88df
PH
251722. $host_address is now set to the target address during the checking of
2518 ignore_target_hosts.
2519
252023. When checking ignore_target_hosts for an ipliteral router, no host name was
2521 being passed; this would have caused $sender_host_name to have been used if
2522 matching the list had actually called for a host name (not very likely,
2523 since this list is usually IP addresses). A host name is now passed as
2524 "[x.x.x.x]".
2525
7d468ab8
PH
252624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2527 code that specifies a non-restarting handler (typically sigaction() in
2528 modern systems) in an attempt to fix a rare and obscure crash bug.
2529
253025. Narrowed the window for a race in the daemon that could cause it to ignore
2531 SIGCHLD signals. This is not a major problem, because they are used only to
2532 wake it up if nothing else does.
2533
62c0818f
PH
253426. A malformed maildirsize file could cause Exim to calculate negative values
2535 for the mailbox size or file count. Odd effects could occur as a result.
2536 The maildirsize information is now recalculated if the size or filecount
2537 end up negative.
2538
26034054
PH
253927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2540 support for a long time. Removed HAVE_SYS_VFS_H.
2541
af66f652
PH
254228. Installed the latest version of exipick from John Jetmore.
2543
90af77f4
PH
254429. In an address list, if the pattern was not a regular expression, an empty
2545 subject address (from a bounce message) matched only if the pattern was an
2546 empty string. Non-empty patterns were not even tested. This was the wrong
2547 because it is perfectly reasonable to use an empty address as part of a
2548 database query. An empty address is now tested by patterns that are
2549 lookups. However, all the other forms of pattern expect the subject to
2550 contain a local part and a domain, and therefore, for them, an empty
2551 address still always fails if the pattern is not itself empty.
2552
d8ef3577
PH
255330. Exim went into a mad DNS loop when attempting to do a callout where the
2554 host was specified on an smtp transport, and looking it up yielded more
2555 than one IP address.
2556
5cb8cbc6
PH
255731. Re-factored the code for checking spool and log partition space into a
2558 function that finds that data and another that does the check. The former
2559 is then used to implement four new variables: $spool_space, $log_space,
2560 $spool_inodes, and $log_inodes.
2561
14702f5b
PH
256232. The RFC2047 encoding function was originally intended for short strings
2563 such as real names; it was not keeping to the 75-character limit for
2564 encoded words that the RFC imposes. It now respects the limit, and
2565 generates multiple encoded words if necessary. To be on the safe side, I
2566 have increased the buffer size for the ${rfc2047: expansion operator from
2567 1024 to 2048 bytes.
2568
063b1e99
PH
256933. It is now permitted to omit both strings after an "if" condition; if the
2570 condition is true, the result is "true". As before, when the second string
2571 is omitted, a false condition yields an empty string. This makes it less
2572 cumbersome to write custom ACL and router conditions.
2573
652e1b65
PH
257434. Failure to deliver a bounce message always caused it to be frozen, even if
2575 there was an errors_to setting on the router. The errors_to setting is now
2576 respected.
2577
6f0c9a4f
PH
257835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2579 canonical form (fully expanded) before being placed in
2580 $sender_host_address.
2581
33397d19
PH
258236. The table in the code that translates DNS record types into text (T_A to
2583 "A" for instance) was missing entries for NS and CNAME. It is just possible
2584 that this could have caused confusion if both these types were looked up
2585 for the same domain, because the text type is used as part of Exim's
2586 per-process caching. But the chance of anyone hitting this buglet seems
2587 very small.
2588
7bb56e1f
PH
258937. The dnsdb lookup has been extended in a number of ways.
2590
2591 (1) There is a new type, "zns", which walks up the domain tree until it
2592 finds some nameserver records. It should be used with care.
2593
ea3bc19b
PH
2594 (2) There is a new type, "mxh", which is like "mx" except that it returns
2595 just the host names, not the priorities.
2596
2597 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2598 looked up. The behaviour when one of the lookups defers can be
2599 controlled by a keyword.
7bb56e1f 2600
ea3bc19b 2601 (4) It is now possible to specify the separator character for use when
7bb56e1f 2602 multiple records are returned.
33397d19 2603
0bcb2a0e
PH
260438. The dnslists ACL condition has been extended: it is now possible to supply
2605 a list of IP addresses and/or domains to be looked up in a particular DNS
2606 domain.
2607
2ac0e484
PH
260839. Added log_selector=+queue_time_overall.
2609
4e1fde53
PH
261040. When running the queue in the test harness, wait just a tad after forking a
2611 delivery process, to get repeatability of debugging output.
2612
de365ded
PH
261341. Include certificate and key file names in error message when GnuTLS fails
2614 to set them up, because the GnuTLS error message doesn't include the name
2615 of the failing file when there is a problem reading it.
2616
f05da2e8
PH
261742. Allow both -bf and -bF in the same test run.
2618
d6453af2
PH
261943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2620
f7b63901
PH
262144. The "Exiscan patch" is now merged into the mainline Exim source.
2622
262345. Sometimes the final signoff response after QUIT could fail to get
2624 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2625 < 0 before doing a fflush(). This bug looks as though it goes back to the
2626 introduction of TLS in release 3.20, but "sometimes" must have been rare
2627 because the tests only now provoked it.
2628
a444213a
PH
262946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2630 (this can affect the format of dates).
2631
0ec020ea
PH
263247. exim_tidydb, when checking for the continued existence of a message for
2633 which it has found a message-specific retry record, was not finding
2634 messages that were in split spool directories. Consequently, it was
2635 deleting retry records that should have stayed in existence.
2636
b1206957
PH
263748. Steve fixed some bugs in eximstats.
2638
263949. The SPA authentication driver was not abandoning authentication and moving
2640 on to the next authenticator when an expansion was forced to fail,
2641 contradicting the general specification for all authenticators. Instead it
2642 was generating a temporary error. It now behaves as specified.
2643
26dd5a95
PH
264450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2645 (the order specifies the preference for clients). The order is now AES256,
2646 AES128, 3DES, ARCFOUR128.
2647
343b2385
PH
264851. Small patch to Sieve code - explicitly set From: when generating an
2649 autoreply.
2650
1c5466b9
PH
265152. Exim crashed if a remote delivery caused a very long error message to be
2652 recorded - for instance if somebody sent an entire SpamAssassin report back
2653 as a large number of 550 error lines. This bug was coincidentally fixed by
2654 increasing the size of one of Exim's internal buffers (big_buffer) that
2655 happened as part of the Exiscan merge. However, to be on the safe side, I
2656 have made the code more robust (and fixed the comments that describe what
2657 is going on).
2658
55ee9ee3
PH
265953. Now that there can be additional text after "Completed" in log lines (if
2660 the queue_time_overall log selector is set), a one-byte patch to exigrep
2661 was needed to allow it to recognize "Completed" as not the last thing in
2662 the line.
2663
d38f8232
PH
266454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2665 patch that reportedly fixes this has been added. I am not expert enough to
2666 create a test for it. This is what the patch creator wrote:
2667
2668 "I found a little strange behaviour of ldap code when working with
2669 Windows 2003 AD Domain, where users was placed in more than one
2670 Organization Units. When I tried to give exim partial DN, the exit code
2671 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2672 But simultaneously result of request was absolutely normal ldap result,
2673 so I produce this patch..."
2674
3295e65b
PH
2675 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2676 REFERENCE, so I have modified the code to exclude the patch when that macro
2677 is not defined.
2678
7102e136
PH
267955. Some experimental protocols are using DNS PTR records for new purposes. The
2680 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2681 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2682 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2683 CAN-2005-0021
7102e136 2684
3ca0ba97
PH
268556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2686
c2bcbe20
PH
268757. Double the size of the debug message buffer (to 2048) so that more of very
2688 long debug lines gets shown.
2689
18ce445d
PH
269058. The exicyclog utility now does better if the number of log files to keep
2691 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2692
1f5b4c3d
PH
269359. Two changes related to the smtp_active_hostname option:
2694
2695 (1) $smtp_active_hostname is now available as a variable.
2696 (2) The default for smtp_banner uses $smtp_active_hostname instead
2697 of $primary_hostname.
2698
b975ba52
PH
269960. The host_aton() function is supposed to be passed a string that is known
2700 to be a valid IP address. However, in the case of IPv6 addresses, it was
2701 not checking this. This is a hostage to fortune. Exim now panics and dies
2702 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2703 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2704 components; fortuitously, this particular loophole had already been fixed
2705 by change 4.50/55 above.
2706
2707 If there are any other similar loopholes, the new check in host_aton()
2708 itself should stop them being exploited. The report I received stated that
2709 data on the command line could provoke the exploit when Exim was running as
2710 exim, but did not say which command line option was involved. All I could
2711 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2712 running as the user.
ea3a6f44 2713 CAN-2005-0021
85b87bc2
PH
2714
271561. There was a buffer overflow vulnerability in the SPA authentication code
2716 (which came originally from the Samba project). I have added a test to the
2717 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2718 CAN-2005-0022
b975ba52 2719
17ffcae7
PH
272062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2721 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2722
d95f9fdb
PH
272363. The daemon start-up calls getloadavg() while still root for those OS that
2724 need the first call to be done as root, but it missed one case: when
2725 deliver_queue_load_max is set with deliver_drop_privilege. This is
2726 necessary for the benefit of the queue runner, because there is no re-exec
2727 when deliver_drop_privilege is set.
2728
86b8287f
PH
272964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2730 This has been fixed.
2731
60dc5e56
PH
273265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2733 was in use, was not putting the data itself into the right store pool;
2734 consequently, it could be overwritten for a subsequent message in the same
2735 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2736 the caching.)
2737
533244af
PH
273866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2739
a5a28604
PH
274067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2741 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2742 the function were treating the return as a boolean value, which happened to
2743 work because 0=false and not-0=true, but is not correct code.
2744
7e634d24
PH
274568. The host_aton() function was not handling scoped IPv6 addresses (those
2746 with, for example, "%eth0" on the end) correctly.
2747
3e11c26b
PH
274869. Fixed some compiler warnings in acl.c for the bitmaps specified with
2749 negated items (that is, ~something) in unsigned ints. Some compilers
2750 apparently mutter when there is no cast.
2751
6729cf78
PH
275270. If an address verification called from an ACL failed, and did not produce a
2753 user-specific message (i.e. there was only a "system" message), nothing was
2754 put in $acl_verify_message. In this situation, it now puts the system
2755 message there.
2756
00f00ca5
PH
275771. Change 4.23/11 added synchronization checking at the start of an SMTP
2758 session; change 4.31/43 added the unwanted input to the log line - except
2759 that it did not do this in the start of session case. It now does.
2760
c9bdd01c
PH
276172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2762 This is wrong and can cause the other end to generate a synchronization
2763 error if it is another Exim or anything else that does the synchronization
2764 check. A QUIT command is no longer sent after a timeout.
2765
d43194df
PH
276673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2767 during host lookups.
2768
fe5b5d0b
PH
276974. The defer_ok option of callout verification was not working if it was used
2770 when verifying addresses in header lines, that is, for this case:
2771
2772 verify = header_sender/callout=defer_ok
2773
76a2d7ba
PH
277475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2775 those file descriptors could be used for SMTP connections. If anything
2776 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2777 could be sent to the SMTP client, causing chaos. The daemon now opens
2778 stdin, stdout, and stderr to /dev/null when it puts itself into the
2779 background.
2780
278176. Arrange for output from Perl's "warn" command to be written to Exim's main
2782 log by default. The user can override this with suitable Perl magic.
2783
04f7d5b9
PH
278477. The use of log_message on a "discard" ACL verb, which is supposed to add to
2785 the log message when discard triggers, was not working for the DATA ACL or
2786 for the non-SMTP ACL.
2787
bc60667e
PH
278878. Error message wording change in sieve.c.
2789
bb6e88ff
PH
279079. If smtp_accept_max_per_host was set, the number of connections could be
2791 restricted to fewer than expected, because the daemon was trying to set up
2792 a new connection before checking whether the processes handling previous
2793 connections had finished. The check for completed processes is now done
2794 earlier. On busy systems, this bug wouldn't be noticed because something
2795 else would have woken the daemon, and it would have reaped the completed
2796 process earlier.
2797
1e70f85b
PH
279880. If a message was submitted locally by a user whose login name contained one
2799 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2800 It caused a spool format error. I have fixed the spool reading code. A
2801 related problem was that the "from" clause in the Received: line became
2802 illegal because of the space(s). It is now covered by ${quote_local_part.
2803
280481. Included the latest eximstats from Steve (adds average sizes to HTML Top
2805 tables).
2806
4e01f9d6
PH
280782. Updated OS/Makefile-AIX as per message from Mike Meredith.
2808
1ee1cef2
PH
280983. Patch from Sieve maintainer to fix unterminated string problem in
2810 "vacation" handling.
2811
6e2b4ccc
PH
281284. Some minor changes to the Linux configuration files to help with other
2813 OS variants using glibc.
2814
8e669ac1
PH
281585. One more patch for Sieve to update vacation handling to latest spec.
2816
495ae4b0 2817
bbe902f0
PH
2818----------------------------------------------------
2819See the note above about the 4.44 and 4.50 releases.
2820----------------------------------------------------
2821
2822
2823Exim version 4.44
2824-----------------
2825
2826 1. Change 4.43/35 introduced a bug that caused file counts to be
2827 incorrectly computed when quota_filecount was set in an appendfile
2828 transport
2829
2830 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2831 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2832 place.
2833
2834 3. Give more explanation in the error message when the command for a transport
2835 filter fails to execute.
2836
2837 4. There are several places where Exim runs a non-Exim command in a
2838 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2839 was being done only for the command run by the queryprogram router. It is
2840 now done for all such subprocesses. The other cases are: ${run, transport
2841 filters, and the commands run by the lmtp and pipe transports.
2842
2843 5. Some older OS have a limit of 256 on the maximum number of file
2844 descriptors. Exim was using setrlimit() to set 1000 as a large value
2845 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2846 systems. I've change it so that if it can't get 1000, it tries for 256.
2847
2848 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2849 was an oversight, and furthermore, ever since the addition of extra
2850 controls (e.g. 4.43/32), the checks on when to allow different forms of
2851 "control" were broken. There should now be diagnostics for all cases when a
2852 control that does not make sense is encountered.
2853
2854 7. $recipients is now available in the predata ACL (oversight).
2855
2856 8. Tidy the search cache before the fork to do a delivery from a message
2857 received from the command line. Otherwise the child will trigger a lookup
2858 failure and thereby defer the delivery if it tries to use (for example) a
2859 cached ldap connection that the parent has called unbind on.
2860
2861 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2862 of $address_data from the recipient verification was clobbered by the
2863 sender verification.
2864
286510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2866 was its contents. (It was OK if the option was not defined at all.)
2867
286811. A "Completed" log line is now written for messages that are removed from
2869 the spool by the -Mrm option.
2870
287112. $host_address is now set to the target address during the checking of
2872 ignore_target_hosts.
2873
287413. When checking ignore_target_hosts for an ipliteral router, no host name was
2875 being passed; this would have caused $sender_host_name to have been used if
2876 matching the list had actually called for a host name (not very likely,
2877 since this list is usually IP addresses). A host name is now passed as
2878 "[x.x.x.x]".
2879
288014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2881 code that specifies a non-restarting handler (typically sigaction() in
2882 modern systems) in an attempt to fix a rare and obscure crash bug.
2883
288415. Narrowed the window for a race in the daemon that could cause it to ignore
2885 SIGCHLD signals. This is not a major problem, because they are used only to
2886 wake it up if nothing else does.
2887
288816. A malformed maildirsize file could cause Exim to calculate negative values
2889 for the mailbox size or file count. Odd effects could occur as a result.
2890 The maildirsize information is now recalculated if the size or filecount
2891 end up negative.
2892
289317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2894 support for a long time. Removed HAVE_SYS_VFS_H.
2895
ea3a6f44 289618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2897
289819. Allow an empty sender to be matched against a lookup in an address list.
2899 Previously the only cases considered were a regular expression, or an
2900 empty pattern.
2901
290220. Exim went into a mad DNS lookup loop when doing a callout where the
2903 host was specified on the transport, if the DNS lookup yielded more than
2904 one IP address.
2905
ea3a6f44
NM
290621. The RFC2047 encoding function was originally intended for short strings
2907 such as real names; it was not keeping to the 75-character limit for
2908 encoded words that the RFC imposes. It now respects the limit, and
2909 generates multiple encoded words if necessary. To be on the safe side, I
2910 have increased the buffer size for the ${rfc2047: expansion operator from
2911 1024 to 2048 bytes.
bbe902f0 2912
ea3a6f44
NM
291322. Failure to deliver a bounce message always caused it to be frozen, even if
2914 there was an errors_to setting on the router. The errors_to setting is now
2915 respected.
bbe902f0
PH
2916
291723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2918 canonical form (fully expanded) before being placed in
2919 $sender_host_address.
2920
292124. Updated eximstats to version 1.33
2922
ea3a6f44
NM
292325. Include certificate and key file names in error message when GnuTLS fails
2924 to set them up, because the GnuTLS error message doesn't include the name
2925 of the failing file when there is a problem reading it.
bbe902f0
PH
2926
292726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2928 As per change 25.
bbe902f0 2929
ea3a6f44
NM
293027. Reset the locale to "C" after calling embedded Perl, in case it was changed
2931 (this can affect the format of dates).
bbe902f0 2932
ea3a6f44
NM
293328. exim_tidydb, when checking for the continued existence of a message for
2934 which it has found a message-specific retry record, was not finding
2935 messages that were in split spool directories. Consequently, it was
2936 deleting retry records that should have stayed in existence.
bbe902f0
PH
2937
293829. eximstats updated to version 1.35
2939 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2940 1.35 - bugfix such that pie charts by volume are generated correctly
2941
ea3a6f44
NM
294230. The SPA authentication driver was not abandoning authentication and moving
2943 on to the next authenticator when an expansion was forced to fail,
2944 contradicting the general specification for all authenticators. Instead it
2945 was generating a temporary error. It now behaves as specified.
bbe902f0 2946
ea3a6f44
NM
294731. The default ordering of permitted cipher suites for GnuTLS was pessimal
2948 (the order specifies the preference for clients). The order is now AES256,
2949 AES128, 3DES, ARCFOUR128.
bbe902f0 2950
ea3a6f44
NM
295131. Small patch to Sieve code - explicitly set From: when generating an
2952 autoreply.
bbe902f0 2953
ea3a6f44
NM
295432. Exim crashed if a remote delivery caused a very long error message to be
2955 recorded - for instance if somebody sent an entire SpamAssassin report back
2956 as a large number of 550 error lines. This bug was coincidentally fixed by
2957 increasing the size of one of Exim's internal buffers (big_buffer) that
2958 happened as part of the Exiscan merge. However, to be on the safe side, I
2959 have made the code more robust (and fixed the comments that describe what
2960 is going on).
bbe902f0 2961
ea3a6f44
NM
296233. Some experimental protocols are using DNS PTR records for new purposes. The
2963 keys for these records are domain names, not reversed IP addresses. The
2964 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2965 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
2966 CAN-2005-0021
2967
ea3a6f44
NM
296834. The host_aton() function is supposed to be passed a string that is known
2969 to be a valid IP address. However, in the case of IPv6 addresses, it was
2970 not checking this. This is a hostage to fortune. Exim now panics and dies
2971 if the condition is not met. A case was found where this could be provoked
2972 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2973 components; fortuitously, this particular loophole had already been fixed
2974 by change 4.50/55 or 4.44/33 above.
2975
2976 If there are any other similar loopholes, the new check in host_aton()
2977 itself should stop them being exploited. The report I received stated that
2978 data on the command line could provoke the exploit when Exim was running as
2979 exim, but did not say which command line option was involved. All I could
2980 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2981 running as the user.
bbe902f0
PH
2982 CAN-2005-0021
2983
ea3a6f44
NM
298435. There was a buffer overflow vulnerability in the SPA authentication code
2985 (which came originally from the Samba project). I have added a test to the
2986 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
2987 CAN-2005-0022
2988
ea3a6f44
NM
298936. The daemon start-up calls getloadavg() while still root for those OS that
2990 need the first call to be done as root, but it missed one case: when
2991 deliver_queue_load_max is set with deliver_drop_privilege. This is
2992 necessary for the benefit of the queue runner, because there is no re-exec
2993 when deliver_drop_privilege is set.
bbe902f0 2994
ea3a6f44
NM
299537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2996 was in use, was not putting the data itself into the right store pool;
2997 consequently, it could be overwritten for a subsequent message in the same
2998 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2999 the caching.)
bbe902f0 3000
ea3a6f44
NM
300138. Sometimes the final signoff response after QUIT could fail to get
3002 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3003 < 0 before doing a fflush(). This bug looks as though it goes back to the
3004 introduction of TLS in release 3.20, but "sometimes" must have been rare
3005 because the tests only now provoked it.
bbe902f0
PH
3006
3007
495ae4b0
PH
3008Exim version 4.43
3009-----------------
3010
3011 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3012 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3013 Now it returns an integer. A number of calls were still expecting a T/F
3014 return. Fortuitously, in all cases, the tests worked in OK situations,
3015 which is the norm. However, things would have gone wrong on any write
3016 failures on the smtp file descriptor. This function is used when sending
3017 messages over SMTP and also when doing verify callouts.
3018
3019 2. When Exim is called to do synchronous delivery of a locally submitted
3020 message (the -odf or -odi options), it no longer closes stderr before doing
3021 the delivery.
3022
3023 3. Implemented the mua_wrapper option.
3024
3025 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3026
3027 5. Implemented the functions header_remove(), header_testname(),
3028 header_add_at_position(), and receive_remove_recipient(), and exported them
3029 to local_scan().
3030
3031 6. If an ACL "warn" statement specified the addition of headers, Exim already
3032 inserted X-ACL-Warn: at the start if there was no header name. However, it
3033 was not making this test for the second and subsequent header lines if
3034 there were newlines in the string. This meant that an invalid header could
3035 be inserted if Exim was badly configured.
3036
3037 7. Allow an ACL "warn" statement to add header lines at the start or after all
3038 the Received: headers, as well as at the end.
3039
3040 8. Added the rcpt_4xx retry error code.
3041
3042 9. Added postmaster_mailfrom=xxx to callout verification option.
3043
304410. Added mailfrom=xxxx to the callout verification option, for verify=
3045 header_sender only.
3046
304711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3048 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3049
305012. Inserted some casts to stop certain compilers warning when using pointer
3051 differences as field lengths or precisions in printf-type calls (mostly
3052 affecting debugging statements).
3053
305413. Added optional readline() support for -be (dynamically loaded).
3055
305614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3057 same clock tick as a message's arrival, so that its received time was the
3058 same as the "first fail" time on the retry record, and that message
3059 remained on the queue past the ultimate address timeout, every queue runner
3060 would try a delivery (because it was past the ultimate address timeout) but
3061 after another failure, the ultimate address timeout, which should have then
3062 bounced the address, did not kick in. This was a "< instead of <=" error;
3063 in most cases the first failure would have been in the next clock tick
3064 after the received time, and all would be well.
3065
306615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3067 being recognized when the domain list was tested by the match_domain
3068 condition in an expansion string.
3069
307016. Added the ${str2b64: operator.
3071
307217. Exim was always calling setrlimit() to set a large limit for the number of
3073 processes, without checking whether the existing limit was already
3074 adequate. (It did check for the limit on file descriptors.) Furthermore,
3075 errors from getrlimit() and setrlimit() were being ignored. Now they are
3076 logged to the main and panic logs, but Exim does carry on, to try to do its
3077 job under whatever limits there are.
3078
307918. Imported PCRE 5.0.
3080
308119. Trivial typo in log message " temporarily refused connection" (the leading
3082 space).
3083
308420. If the log selector return_path_on_delivery was set and an address was
3085 redirected to /dev/null, the delivery process crashed because it assumed
3086 that a return path would always be set for a "successful" delivery. In this
3087 case, the whole delivery is bypassed as an optimization, and therefore no
3088 return path is set.
3089
309021. Internal re-arrangement: the function for sending a challenge and reading
3091 a response while authentication was assuming a zero-terminated challenge
3092 string. It's now changed to take a pointer and a length, to allow for
3093 binary data in such strings.
3094
309522. Added the cyrus_sasl authenticator (code supplied by MBM).
3096
309723. Exim was not respecting finduser_retries when seeking the login of the
3098 uid under which it was called; it was always trying 10 times. (The default
3099 setting of finduser_retries is zero.) Also, it was sleeping after the final
3100 failure, which is pointless.
3101
310224. Implemented tls_on_connect_ports.
3103
310425. Implemented acl_smtp_predata.
3105
310626. If the domain in control=submission is set empty, Exim assumes that the
3107 authenticated id is a complete email address when it generates From: or
3108 Sender: header lines.
3109
311027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3111 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3112 chown and chgrp in /bin and hostname in /usr/bin.
3113
311428. Exim was keeping the "process log" file open after each use, just as it
3115 does for the main log. This opens the possibility of it remaining open for
3116 long periods when the USR1 signal hits a daemon. Occasional processlog
3117 errors were reported, that could have been caused by this. Anyway, it seems
3118 much more sensible not to leave this file open at all, so that is what now
3119 happens.
3120
312129. The long-running daemon process does not normally write to the log once it
3122 has entered its main loop, and it closes the log before doing so. This is
3123 so that log files can straightforwardly be renamed and moved. However,
3124 there are a couple of unusual error situations where the daemon does write
3125 log entries, and I had neglected to close the log afterwards.
3126
312730. The text of an SMTP error response that was received during a remote
3128 delivery was being truncated at 512 bytes. This is too short for some of
3129 the long messages that one sometimes sees. I've increased the limit to
3130 1024.
3131
313231. It is now possible to make retry rules that apply only when a message has a
3133 specific sender, in particular, an empty sender.
3134
313532. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3136 it possible to be selective about when SMTP synchronization is enforced.
3137
313833. Added "control = caseful_local_part" and "control = "caselower_local_part".
3139
314032. Implemented hosts_connection_nolog.
3141
314233. Added an ACL for QUIT.
3143
314434. Setting "delay_warning=" to disable warnings was not working; it gave a
3145 syntax error.
3146
314735. Added mailbox_size and mailbox_filecount to appendfile.
3148
314936. Added control = no_multiline_responses to ACLs.
3150
315137. There was a bug in the logic of the code that waits for the clock to tick
3152 in the case where the clock went backwards by a substantial amount such
3153 that the microsecond fraction of "now" was more than the microsecond
3154 fraction of "then" (but the whole seconds number was less).
3155
315638. Added support for the libradius Radius client library this is found on
3157 FreeBSD (previously only the radiusclient library was supported).
3158
3159
3160Exim version 4.42
3161-----------------
3162
3163 1. When certain lookups returned multiple values in the form name=value, the
3164 quoting of the values was not always being done properly. Specifically:
3165 (a) If the value started with a double quote, but contained no whitespace,
3166 it was not quoted.
3167 (b) If the value contained whitespace other than a space character (i.e.
3168 tabs or newlines or carriage returns) it was not quoted.
3169 This fix has been applied to the mysql and pgsql lookups by writing a
3170 separate quoting function and calling it from the lookup code. The fix
3171 should probably also be applied to nisplus, ibase and oracle lookups, but
3172 since I cannot test any of those, I have not disturbed their existing code.
3173
3174 2. A hit in the callout cache for a specific address caused a log line with no
3175 reason for rejecting RCPT. Now it says "Previous (cached) callout
3176 verification failure".
3177
3178 3. There was an off-by-one bug in the queryprogram router. An over-long
3179 return line was truncated at 256 instead of 255 characters, thereby
3180 overflowing its buffer with the terminating zero. As well as fixing this, I
3181 have increased the buffer size to 1024 (and made a note to document this).
3182
3183 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3184 when Exim is waiting for an SMTP response from a remote server, Exim
3185 restarts its select() call on the socket, thereby resetting its timeout.
3186 This is not a problem when such interrupts are rare. Somebody set up a cron
3187 job to run exiwhat every 2 minutes, which is less than the normal select()
3188 timeout (5 or 10 minutes). This meant that the select() timeout never
3189 kicked in because it was always reset. I have fixed this by comparing the
3190 time when an interrupt arrives with the time at the start of the first call
3191 to select(). If more time than the timeout has elapsed, the interrupt is
3192 treated as a timeout.
3193
3194 5. Some internal re-factoring in preparation for the addition of Sieve
3195 extensions (by MH). In particular, the "personal" test is moved to a
3196 separate function, and given an option for scanning Cc: and Bcc: (which is
3197 not set for Exim filters).
3198
3199 6. When Exim created an email address using the login of the caller as the
3200 local part (e.g. when creating a From: or Sender: header line), it was not
3201 quoting the local part when it contained special characters such as @.
3202
3203 7. Installed new OpenBSD configuration files.
3204
3205 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3206 try to make them clearer.
3207
3208 9. Callout options, other than the timeout value, were being ignored when
3209 verifying sender addresses in header lines. For example, when using
3210
3211 verify = header_sender/callout=no_cache
3212
3213 the cache was (incorrectly) being used.
3214
321510. Added a missing instance of ${EXE} to the exim_install script; this affects
3216 only the Cygwin environment.
3217
321811. When return_path_on_delivery was set as a log selector, if different remote
3219 addresses in the same message used different return paths and parallel
3220 remote delivery occurred, the wrong values would sometimes be logged.
3221 (Whenever a remote delivery process finished, the return path value from
3222 the most recently started remote delivery process was logged.)
3223
322412. RFC 3848 specifies standard names for the "with" phrase in Received: header
3225 lines when AUTH and/or TLS are in use. This is the "received protocol"
3226 field. Exim used to use "asmtp" for authenticated SMTP, without any
3227 indication (in the protocol name) for TLS use. Now it follows the RFC and
3228 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3229 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3230 names appear in log lines as well as in Received: header lines.
3231
323213. Installed MH's patches for Sieve to add the "copy" and "vacation"
3233 extensions, and comparison tests, and to fix some bugs.
3234
323514. Changes to the "personal" filter test:
3236
3237 (1) The test was buggy in that it was just doing the equivalent of
3238 "contains" tests on header lines. For example, if a user's address was
3239 anne@some.where, the "personal" test would incorrectly be true for
3240
3241 To: susanne@some.where
3242
3243 This test is now done by extracting each address from the header in turn,
3244 and checking the entire address. Other tests that are part of "personal"
3245 are now done using regular expressions (for example, to check local parts
3246 of addresses in From: header lines).
3247
3248 (2) The list of non-personal local parts in From: addresses has been
3249 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3250 taken from the Sieve specification recommendations.
3251
3252 (3) If the message contains any header line starting with "List-" it is
3253 treated as non-personal.
3254
3255 (4) The test for "circular" in the Subject: header line has been removed
3256 because it now seems ill-conceived.
3257
325815. Minor typos in src/EDITME comments corrected.
3259
326016. Installed latest exipick from John Jetmore.
3261
326217. If headers_add on a router specified a text string that was too long for
3263 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3264 of string_sprintf() is now avoided.
3265
326618. $message_body_size was not set (it was always zero) when running the DATA
3267 ACL and the local_scan() function.
3268
326919. For the "mail" command in an Exim filter, no default was being set for
3270 the once_repeat time, causing a random time value to be used if "once" was
3271 specified. (If the value happened to be <= 0, no repeat happened.) The
3272 default is now 0s, meaning "never repeat". The "vacation" command was OK
3273 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3274 (I found it when inspecting the code).
3275
327620. There is now an overall timeout for performing a callout verification. It
3277 defaults to 4 times the callout timeout, which applies to individual SMTP
3278 commands during the callout. The overall timeout applies when there is more
3279 than one host that can be tried. The timeout is checked before trying the
3280 next host. This prevents very long delays if there are a large number of
3281 hosts and all are timing out (e.g. when the network connections are timing
3282 out). The value of the overall timeout can be changed by specifying an
3283 additional sub-option for "callout", called "maxwait". For example:
3284
3285 verify = sender/callout=5s,maxwait=20s
3286
328721. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3288 to the end before writing, but this should make it even safer).
3289
329022. Exim was forgetting that it had advertised PIPELINING for the second and
3291 subsequent messages on an SMTP connection. It was also not resetting its
3292 memory on STARTTLS and an internal HELO.
3293
329423. When Exim logs an SMTP synchronization error within a session, it now
3295 records whether PIPELINING has been advertised or not.
3296
329724. Added 3 instances of "(long int)" casts to time_t variables that were being
3298 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3299 rather than long int.
3300
330125. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3302
330326. Added the never_mail option to autoreply.
3304
3305
3306Exim version 4.41
3307-----------------
3308
3309 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3310 crash if the getsockname() call failed; this can happen if a connection is
3311 closed very soon after it is established. The problem was simply in the
3312 order in which certain operations were done, causing Exim to try to write
3313 to the SMTP stream before it had set up the file descriptor. The bug has
3314 been fixed by making things happen in the correct order.
3315
3316
3317Exim version 4.40
3318-----------------
3319
3320 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3321 before the connection was closed, thus losing the rejection response.
3322
3323 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3324 some early Solaris releases, but causes trouble in current releases where
3325 socklen_t is defined.
3326
3327 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3328 always exist.
3329
3330 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3331 configured.
3332
3333 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3334 that releasing the top of it at the end releases what was used for sub-
3335 expansions (unless the block got too big). However, discard this block if
3336 the first thing is a variable or header, so that we can use its block when
3337 it is dynamic (useful for very large $message_headers, for example).
3338
3339 6. Lookups now cache *every* query, not just the most recent. A new, separate
3340 store pool is used for this. It can be recovered when all lookup caches are
3341 flushed. Lookups now release memory at the end of their result strings.
3342 This has involved some general refactoring of the lookup sources.
3343
3344 7. Some code has been added to the store_xxx() functions to reduce the amount
3345 of flapping under certain conditions.
3346
3347 8. log_incoming_interface used to affect only the <= reception log lines. Now
3348 it causes the local interface and port to be added to several more SMTP log
3349 lines, for example "SMTP connection from", and rejection lines.
3350
3351 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3352
335310. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3354
335511. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3356 could be overwritten at the end of the current message (or the start of a
3357 new message if it was set in a HELO ACL). The value is now preserved for
3358 the duration of the SMTP connection.
3359
336012. If a transport had a headers_rewrite setting, and a matching header line
3361 contained an unqualified address, that address was qualified, even if it
3362 did not match any rewriting rules. The underlying bug was that the values
3363 of the flags that permit the existence of unqualified sender and recipient
3364 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3365 non-local messages, and by -bnq for local messages) were not being
3366 preserved with the message after it was received.
3367
336813. When Exim was logging an SMTP synchronization error, it could sometimes log
3369 "next input=" as part of the text comprising the host identity instead of
3370 the correct text. The code was using the same buffer for two different
3371 strings. However, depending on which order the printing function evaluated
3372 its arguments, the bug did not always show up. Under Linux, for example, my
3373 test suite worked just fine.
3374
337514. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3376 doesn't work with some older versions of Perl. It has been changed to "my",
3377 which in any case is probably the better facility to use.
3378
337915. A really picky compiler found some instances of statements for creating
3380 error messages that either had too many or two few arguments for the format
3381 string.
3382
338316. The size of the buffer for calls to the DNS resolver has been increased
3384 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3385 for addresses that have a lot of PTR records. This alleviates a problem; it
3386 does not fully solve it.
3387
338817. A dnsdb lookup for PTR records that receives more data than will fit in the
3389 buffer now truncates the list and logs the incident, which is the same
3390 action as happens when Exim is looking up a host name and its aliases.
3391 Previously in this situation something unpredictable would happen;
3392 sometimes it was "internal error: store_reset failed".
3393
339418. If a server dropped the connection unexpectedly when an Exim client was
3395 using GnuTLS and trying to read a response, the client delivery process
3396 crashed while trying to generate an error log message.
3397
339819. If a "warn" verb in an ACL added multiple headers to a message in a single
3399 string, for example:
3400
3401 warn message = H1: something\nH2: something
3402
3403 the text was added as a single header line from Exim's point of view
3404 though it ended up OK in the delivered message. However, searching for the
3405 second and subsequent header lines using $h_h2: did not work. This has been
3406 fixed. Similarly, if a system filter added multiple headers in this way,
3407 the routers could not see them.
3408
340920. Expanded the error message when iplsearch is called with an invalid key to
3410 suggest using net-iplsearch in a host list.
3411
341221. When running tests using -bh, any delays imposed by "delay" modifiers in
3413 ACLs are no longer actually imposed (and a message to that effect is
3414 output).
3415
341622. If a "gecos" field in a passwd entry contained escaped characters, in
3417 particular, if it contained a \" sequence, Exim got it wrong when building
3418 a From: or a Sender: header from that name. A second bug also caused
3419 incorrect handling when an unquoted " was present following a character
3420 that needed quoting.
3421
342223. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3423 was not being matched caselessly.
3424
342524. Arranged for all hyphens in the exim.8 source to be escaped with
3426 backslashes.
3427
342825. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3429 properly. Recipient callout cache records were still being keyed to include
3430 the sender, even when use_sender was set false. This led to far more
3431 callouts that were necessary. The sender is no longer included in the key
3432 when use_sender is false.
3433
343426. Added "control = submission" modifier to ACLs.
3435
343627. Added the ${base62d: operator to decode base 62 numbers.
3437
343828. dnsdb lookups can now access SRV records.
3439
344029. CONFIGURE_OWNER can be set at build time to define an alternative owner for
3441 the configuration file.
3442
344330. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose
3444 (-v) mode. This makes the output for a verbose queue run more intelligible.
3445
344631. Added a use_postmaster feature to recipient callouts.
3447
344832. Added the $body_zerocount variable, containing the number of binary zero
3449 bytes in the message body.
3450
345133. The time of last modification of the "new" subdirectory is now used as the
3452 "mailbox time last read" when there is a quota error for a maildir
3453 delivery.
3454
345534. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei.
3456
345735. Added +ignore_unknown as a special item in host lists.
3458
345936. Code for decoding IPv6 addresses in host lists is now included, even if
3460 IPv6 support is not being compiled. This fixes a bug in which an IPv6
3461 address was recognized as an IP address, but was then not correctly decoded
3462 into binary, causing unexpected and incorrect effects when compared with
3463 another IP address.
3464
3465
3466Exim version 4.34
3467-----------------
3468
3469 1. Very minor rewording of debugging text in manualroute to say "list of
3470 hosts" instead of "hostlist".
3471
3472 2. If verify=header_syntax was set, and a header line with an unqualified
3473 address (no domain) and a large number of spaces between the end of the
3474 name and the colon was received, the reception process suffered a buffer
3475 overflow, and (when I tested it) crashed. This was caused by some obsolete
3476 code that should have been removed. The fix is to remove it!
3477
3478 3. When running in the test harness, delay a bit after writing a bounce
3479 message to get a bit more predictability in the log output.
3480
3481 4. Added a call to search_tidyup() just before forking a reception process. In
3482 theory, someone could use a lookup in the expansion of smtp_accept_max_
3483 per_host which, without the tidyup, could leave open a database connection.
3484
3485 5. Added the variables $recipient_data and $sender_data which get set from a
3486 lookup success in an ACL "recipients" or "senders" condition, or a router
3487 "senders" option, similar to $domain_data and $local_part_data.
3488
3489 6. Moved the writing of debug_print from before to after the "senders" test
3490 for routers.
3491
3492 7. Change 4.31/66 (moving the time when the Received: is generated) caused
3493 problems for message scanning, either using a data ACL, or using
3494 local_scan() because the Received: header was not generated till after they
3495 were called (in order to set the time as the time of reception completion).
3496 I have revised the way this works. The header is now generated after the
3497 body is received, but before the ACL or local_scan() are called. After they
3498 are run, the timestamp in the header is updated.
3499
3500
3501Exim version 4.33
3502-----------------
3503
3504 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled
3505 before starting a queue runner without re-exec. This happened only when
3506 deliver_drop_privilege was set or when the Exim user was set to root. The
3507 effect of the bug was that timeouts during subsequent deliveries caused
3508 crashes instead of being properly handled. The handler is now left at its
3509 default (and expected) setting.
3510
3511 2. The other case in which a daemon avoids a re-exec is to deliver an incoming