Update OptionLists. (Claim for 4.72 because 4.73 not yet complete and don't
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
8544e77a 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.621 2010/06/05 11:13:29 pdp Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
97fd1e48
PP
6Exim version 4.73
7
8PP/01 Date: & Message-Id: revert to normally being appended to a message,
9 only prepend for the Resent-* case. Fixes regression introduced in
10 Exim 4.70 by NM/22 for Bugzilla 607.
11
6901c596
PP
12PP/02 Include check_rfc2047_length in configure.default because we're seeing
13 increasing numbers of administrators be bitten by this.
14
a8c8d6b5
JJ
15JJ/01 Added DISABLE_DKIM and comment to src/EDITME
16
77bb000f
PP
17PP/03 Bugzilla 994: added openssl_options main configuration option.
18
a29e5231
PP
19PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
20
21PP/05 Bugzilla 834: provide a permit_codedump option for pipe transports.
22
55c75993
PP
23PP/06 Adjust NTLM authentication to handle SASL Initial Response.
24
453a6645
PP
25PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
26 without a peer certificate (I believe), leading to a segfault because of
27 an assumption that peers always have certificates. Be a little more
28 paranoid. Problem reported by Martin Tscholak.
29
8544e77a
PP
30PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
31 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
32 NB: ClamAV planning to remove STREAM in "middle of 2010".
33
55c75993 34
465e92cf
JJ
35Exim version 4.72
36-----------------
37
453a6645
PP
38JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
39 $data_path, and $header_path variables; fixed documentation bugs and
40 typos
465e92cf 41
453a6645
PP
42JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
43 exipick to access non-standard spools, including the "frozen" queue
44 (Finput)
edae0343 45
9bd3e22c
NM
46NM/01 Bugzilla 965: Support mysql stored procedures.
47 Patch from Alain Williams
48
bb576ff7
NM
49NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
50
5a1a5845
NM
51NM/03 Bugzilla 955: Documentation fix for max_rcpts.
52 Patch from Andreas Metzler
53
981a9fad
NM
54NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
55 Patch from Kirill Miazine
56
7fc497ee
NM
57NM/05 Bugzilla 671: Added umask to procmail example.
58
1a41defa
JJ
59JJ/03 installed exipick 20100323.0, fixing doc bug
60
a466095c 61NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 62 directory. Notification and patch from Dan Rosenberg.
a466095c 63
94a6bd0b
NM
64TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
65
66TK/02 Improve log output when DKIM signing operation fails.
67
68MH/01 Treat the transport option dkim_domain as a colon separated
69 list, not as a single string, and sign the message with each element,
70 omitting multiple occurences of the same signer.
71
c1b141a8
NM
72NM/07 Null terminate DKIM strings, Null initialise DKIM variable
73 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 74
b26eacf1 75NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
76 Patch by Simon Arlott
77
179c5980 78PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 79 MBX locking. Notification from Dan Rosenberg.
179c5980 80
9bd3e22c 81
7c6d71af
NM
82Exim version 4.71
83-----------------
84
85TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body
86
f013fb92
NM
87NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
88
0eb8eedd
NM
89NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
90
663ee6d9
NM
91NM/03 Bugzilla 847: Enable DNSDB lookup by default.
92
177ebd9b
NM
93NM/04 Bugzilla 915: Flag broken perl installation during build.
94
7c6d71af 95
210f147e
NM
96Exim version 4.70
97-----------------
98
cdd3bb85 99TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 100 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
101
102TK/02 Write list of recipients to X-Envelope-Sender header when building
103 the mbox-format spool file for content scanning (suggested by Jakob
104 Hirsch)
105
106TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
107 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 108 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
109
110TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
111 by Mark Daniel Reidel <mr@df.eu>.
112
210f147e
NM
113NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
114 When building exim an external PCRE library is now needed -
115 PCRE is a system library on the majority of modern systems.
116 See entry on PCRE_LIBS in EDITME file.
117
deafd5b3
NM
118NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
119 conversation. Added nologin parameter to request.
120 Patch contributed by Kirill Miazine
121
089793a4
TF
122TF/01 Do not log submission mode rewrites if they do not change the address.
123
5f16ca82
TF
124TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
125
dae9d94e
NM
126NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
127 log files in place. Contributed by Roberto Lima
128
3f0da4d0
NM
129NM/04 Bugzilla 667: close socket used by dovecot authenticator
130
06864c44
TF
131TF/03 Bugzilla 615: When checking the local_parts router precondition
132 after a local_part_suffix or local_part_prefix option, Exim now
133 does not use the address's named list lookup cache, since this
134 contains cached lookups for the whole local part.
135
65a7d8c3
NM
136NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
137 Robert Millan. Documentation is in experimental-spec.txt
138
23510047 139TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 140
7d8eec3a 141NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000
5f28a6e8 142
7d8eec3a 143NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
144 Patch provided by Jan Srzednicki
145
89dec7b6
TF
146TF/05 Leading white space used to be stripped from $spam_report which
147 wrecked the formatting. Now it is preserved.
5f28a6e8 148
a99de90c
TF
149TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
150 that they are available at delivery time.
151
e2803e40
TF
152TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
153
7199e1ee
TF
154TF/08 TLS error reporting now respects the incoming_interface and
155 incoming_port log selectors.
156
e276e04b
TF
157TF/09 Produce a more useful error message if an SMTP transport's hosts
158 setting expands to an empty string.
159
ce552449
NM
160NM/06 Bugzilla 744: EXPN did not work under TLS.
161 Patch provided by Phil Pennock
162
e765a0f1
NM
163NM/07 Bugzilla 769: Extraneous comma in usage fprintf
164 Patch provided by Richard Godbee
165
4f054c63 166NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 167 acl_smtp_notquit, added index entry.
4f054c63 168
24c929a2
NM
169NM/09 Bugzilla 787: Potential buffer overflow in string_format
170 Patch provided by Eugene Bujak
171
cf73943b
NM
172NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
173 Patch provided by Maxim Dounin
174
b52bc06e
NM
175NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
176 Patch provided by Phil Pennock
177
447de4b0
NM
178NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
179
4c69d561
NM
180NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
181 Patch provided by Brad "anomie" Jorsch
182
d5c39246 183NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
NM
184 Patch provided by Dean Brooks
185
0b23848a
TK
186TK/05 Add native DKIM support (does not depend on external libraries).
187
8f3414a1 188NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
NM
189 Patch provided by Graeme Fowler
190
fb6f955d
NM
191NM/16 Bugzilla 851: Documentation example syntax fix.
192
193NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 194
dbb0bf41
NM
195NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
196
f3766eb5
NM
197NM/19 Bugzilla 745: TLS version reporting
198 Patch provided by Phil Pennock
199
200NM/20 Bugzilla 167: bool: condition support
201 Patch provided by Phil Pennock
36f12725 202
e6060e2c
NM
203NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
204 Patch provided by Phil Pennock
205
7496b417 206NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
NM
207 Patch provided by Brad "anomie" Jorsch
208
d5c13d66
NM
209NM/23 Bugzilla 687: Fix misparses in eximstats
210 Patch provided by Heiko Schlittermann
211
b2335c0b
NM
212NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid
213 Patch provided by Heiko Schlittermann
214
f4cd9433 215NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
1da77999 216 plus update to original patch.
f4cd9433
NM
217
218NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 219
8dc71ab3
NM
220NM/27 Bugzilla 802: Improvements to local interface IP addr detection
221 Patch provided by David Brownlee
222
400eda43
NM
223NM/28 Bugzilla 807: Improvements to LMTP delivery logging
224
225NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 226
07af267e
NM
227NM/30 Bugzilla 888: TLS documentation bugfixes
228
0cc09577 229NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 230
17792b53
NM
231NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
232 Unlike the original bugzilla I have changed all shell scripts in src tree
233
52383f8f
NM
234NM/33 Bugzilla 898: Transport filter timeout fix
235 Patch by Todd Rinaldo
236
5ca6d115
NM
237NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches
238 Patch by Serge Demonchaux
239
baee9eee
NM
240NM/35 Bugzilla 39: Base64 decode bug fixes
241 Patch by Jakob Hirsch
242
e93a964c
NM
243NM/36 Bugzilla 909: Correct connect() call in dcc code
244
9bf3d68f
NM
245NM/37 Bugzilla 910: Correct issue with relaxed/simple handling
246
247NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed
96535b98 248
30339e0f
NM
249NM/39 Bugzilla 911: Fixed MakeLinks build script
250
deafd5b3 251
47db1125
NM
252Exim version 4.69
253-----------------
254
4b3504d0
TK
255TK/01 Add preliminary DKIM support. Currently requires a forked version of
256 ALT-N's libdkim that I have put here:
257 http://duncanthrax.net/exim-experimental/
258
259 Note to Michael Haardt: I had to rename some vars in sieve.c. They
260 were called 'true' and it seems that C99 defines that as a reserved
261 keyword to be used with 'bool' variable types. That means you could
262 not include C99-style headers which use bools without triggering
263 build errors in sieve.c.
264
81ea09ca
NM
265NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
266 as mailq or other aliases. Changed the --help handling significantly
267 to do whats expected. exim_usage() emits usage/help information.
268
f13cddcb
SC
269SC/01 Added the -bylocaldomain option to eximstats.
270
8ad076b2
NM
271NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
272
a843aaa6
NM
273NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
274
47db1125
NM
275NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
276
277
eb4c0de6
PH
278Exim version 4.68
279-----------------
280
281PH/01 Another patch from the Sieve maintainer.
282
6a3bceb1
PH
283PH/02 When an IPv6 address is converted to a string for single-key lookup
284 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
285 dots are used instead of colons so that keys in lsearch files need not
286 contain colons. This was done some time before quoting was made available
287 in lsearch files. However, iplsearch files do require colons in IPv6 keys
288 (notated using the quote facility) so as to distinguish them from IPv4
289 keys. This meant that lookups for IP addresses in host lists did not work
290 for iplsearch lookups.
291
292 This has been fixed by arranging for IPv6 addresses to be expressed with
293 colons if the lookup type is iplsearch. This is not incompatible, because
294 previously such lookups could never work.
295
296 The situation is now rather anomolous, since one *can* have colons in
297 ordinary lsearch keys. However, making the change in all cases is
298 incompatible and would probably break a number of configurations.
299
2e30fa9d
TK
300TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
301 version.
302
0806a9c5
MH
303MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
304 conversion specification without a maximum field width, thereby enabling
305 a rogue spamd server to cause a buffer overflow. While nobody in their
306 right mind would setup Exim to query an untrusted spamd server, an
307 attacker that gains access to a server running spamd could potentially
308 exploit this vulnerability to run arbitrary code as the Exim user.
309
ae276964
TK
310TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
311 $primary_hostname instead of what libspf2 thinks the hosts name is.
312
0f2cbd1b
MH
313MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
314 a directory entry by the name of the lookup key. Previously, if a
315 symlink pointed to a non-existing file or a file in a directory that
316 Exim lacked permissions to read, a lookup for a key matching that
317 symlink would fail. Now it is enough that a matching directory entry
318 exists, symlink or not. (Bugzilla 503.)
319
2b85bce7
PH
320PH/03 The body_linecount and body_zerocount variables are now exported in the
321 local_scan API.
322
93655c46
PH
323PH/04 Added the $dnslist_matched variable.
324
6c512171
PH
325PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
326 This means they are set thereafter only if the connection becomes
327 encrypted.
328
329PH/06 Added the client_condition to authenticators so that some can be skipped
330 by clients under certain conditions.
331
aa6dc513
PH
332PH/07 The error message for a badly-placed control=no_multiline_responses left
333 "_responses" off the end of the name.
334
a96603a0
PH
335PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
336
8f240103
PH
337PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
338 (without spaces) instead of just copying the configuration text.
339
340PH/10 Added the /noupdate option to the ratelimit ACL condition.
341
d677b2f2
PH
342PH/11 Added $max_received_linelength.
343
d52120f2
PH
344PH/12 Added +ignore_defer and +include_defer to host lists.
345
64f2600a
PH
346PH/13 Installed PCRE version 7.2. This needed some changes because of the new
347 way in which PCRE > 7.0 is built.
348
8669f003
PH
349PH/14 Implemented queue_only_load_latch.
350
a4dc33a8
PH
351PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
352 MAIL command. The effect was to mangle the value on 64-bit systems.
353
d6a60c0f
PH
354PH/16 Another patch from the Sieve maintainer.
355
8f128379
PH
356PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
357
8932dffe
PH
358PH/18 If a system quota error occurred while trying to create the file for
359 a maildir delivery, the message "Mailbox is full" was not appended to the
360 bounce if the delivery eventually timed out. Change 4.67/27 below applied
361 only to a quota excession during the actual writing of the file.
d6a60c0f 362
ddea74fa 363PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
364 characters?) which causes problems in log lines. The DN values are now
365 passed through string_printing() before being added to log lines.
366
ddea74fa 367PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
368 and InterBase are left for another time.)
369
ddea74fa
PH
370PH/21 Added message_body_newlines option.
371
ce9f225c
PH
372PH/22 Guard against possible overflow in moan_check_errorcopy().
373
19897d52
PH
374PH/23 POSIX allows open() to be a macro; guard against that.
375
bc64a74d
PH
376PH/24 If the recipient of an error message contained an @ in the local part
377 (suitably quoted, of course), incorrect values were put in $domain and
378 $local_part during the evaluation of errors_copy.
379
eb4c0de6 380
b4ed4da0
PH
381Exim version 4.67
382-----------------
383
22ad45c9
MH
384MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
385 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
386 Jan Srzednicki.
387
b4ed4da0
PH
388PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
389 issue a MAIL command.
390
431b7361
PH
391PH/02 In an ACL statement such as
392
393 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
394
395 if a client was not listed at all, or was listed with a value other than
396 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
397 the condition was not true (as it should be), so access was not denied.
398 The bug was that the ! inversion was incorrectly passed on to the second
399 item. This has been fixed.
400
401PH/03 Added additional dnslists conditions == and =& which are different from
402 = and & when the dns lookup returns more than one IP address.
403
83da1223
PH
404PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
405 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
406
54fc8428
PH
407PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
408 FSYNC, which compiles an option called disable_fsync that allows for
409 bypassing fsync(). The documentation is heavily laced with warnings.
410
34c5e8dd
SC
411SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
412
bbe15da8
PH
413PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
414 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
415 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
416 including adding "make clean"; (3) Added -fPIC when compiling the test
417 dynamically loaded module, to get rid of a warning.
418
0e8a9471
MH
419MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
420 message fails, move_frozen_messages = true and ignore_bounce_errors_after
421 = 0s. The bug is otherwise harmless.
422
f0872424
PH
423PH/07 There was a bug in the dovecot authenticator such that the value of
424 $auth1 could be overwritten, and so not correctly preserved, after a
425 successful authentication. This usually meant that the value preserved by
426 the server_setid option was incorrect.
427
b01dd148
PH
428PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
429
6bf342e1
PH
430PH/09 Installed PCRE release 7.0.
431
273f34d0
PH
432PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
433 run for batched SMTP input. It is now run at the start of every message
434 in the batch. While fixing this I discovered that the process information
435 (output by running exiwhat) was not always getting set for -bs and -bS
436 input. This is fixed, and it now also says "batched" for BSMTP.
437
cf8b11a5
PH
438PH/11 Added control=no_pipelining.
439
41c7c167
PH
440PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
441 patch, slightly modified), and move the expansion of helo_data till after
442 the connection is made in the smtp transport (so it can use these
443 values).
444
9c57cbc0
PH
445PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
446
f3f065bb
PH
447PH/14 Added log_selector = +pid.
448
047bdd8c
PH
449PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
450
0ce9abe6
PH
451PH/16 Add ${if forany and ${if forall.
452
0e22dfd1
PH
453PH/17 Added dsn_from option to vary the From: line in DSNs.
454
4c590bd1
PH
455PH/18 Flush SMTP output before performing a callout, unless control =
456 no_callout_flush is set.
457
09945f1e
PH
458PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
459 was true (the default) a successful delivery failed to delete the retry
460 item, thus causing premature timeout of the address. The bug is now
461 fixed.
462
c51b8e75
PH
463PH/20 Added hosts_avoid_pipelining to the smtp transport.
464
e28326d8
PH
465PH/21 Long custom messages for fakedefer and fakereject are now split up
466 into multiline reponses in the same way that messages for "deny" and
467 other ACL rejections are.
468
75b1493f
PH
469PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
470 with slight modification.
471
7c5214ec
PH
472PH/23 Applied sieve patches from the maintainer "tracking the latest notify
473 draft, changing the syntax and factoring some duplicate code".
474
4311097e
PH
475PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
476 for deliveries of the second and subsequent messages over the same SMTP
477 connection.
478
29f89cad
PH
479PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
480 ${reduce, with only minor "tidies".
481
5e687460
SC
482SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
483
c3611384
PH
484PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
485 expansion side effects.
486
5a11a7b4
PH
487PH/27 When a message times out after an over-quota error from an Exim-imposed
488 quota, the bounce message says "mailbox is full". This message was not
489 being given when it was a system quota that was exceeded. It now should
490 be the same.
491
0e20aff9
MH
492MH/03 Made $recipients available in local_scan(). local_scan() already has
493 better access to the recipient list through recipients_list[], but
494 $recipients can be useful in postmaster-provided expansion strings.
495
ca86f471
PH
496PH/28 The $smtp_command and $smtp_command_argument variables were not correct
497 in the case of a MAIL command with additional options following the
498 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
499 were accidentally chopped off.
500
a14e5636
PH
501PH/29 SMTP synchronization checks are implemented when a command is read -
502 there is a check that no more input is waiting when there shouldn't be
503 any. However, for some commands, a delay in an ACL can mean that it is
504 some time before the response is written. In this time, more input might
505 arrive, invalidly. So now there are extra checks after an ACL has run for
506 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
507 pipelining has not been advertised.
508
ec95d1a6
PH
509PH/30 MH's patch to allow iscntrl() characters to be list separators.
510
42855d71
PH
511PH/31 Unlike :fail:, a custom message specified with :defer: was not being
512 returned in the SMTP response when smtp_return_error_details was false.
513 This has been fixed.
514
57c2c631
PH
515PH/32 Change the Dovecot authenticator to use read() and write() on the socket
516 instead of the C I/O that was originally supplied, because problems were
517 reported on Solaris.
518
58c01c94
PH
519PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
520 Exim which did not show up earlier: it was assuming that a call to
521 SSL_CTX_set_info_callback() might give an error value. In fact, there is
522 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
523 was a macro that became an assignment, so it seemed to work. This has
524 changed to a proper function call with a void return, hence the compile
525 error. Exim's code has been fixed.
526
dee5a20a
PH
527PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
528 cpus.
529
d2ee6114
PH
530PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
531
b2d5182b
PH
532PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
533
79749a79
PH
534PH/37 If a message is not accepted after it has had an id assigned (e.g.
535 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
536 "Completed" line in the log. When some messages of this type were
537 selected by exigrep, they were listed as "not completed". Others were
538 picked up by some special patterns. I have improved the selection
539 criteria to be more general.
79749a79 540
c456d9bb
PH
541PH/38 The host_find_failed option in the manualroute router can now be set
542 to "ignore", to completely ignore a host whose IP address cannot be
543 found. If all hosts are ignored, the behaviour is controlled by the new
544 host_all_ignored option.
545
cd9868ec
PH
546PH/39 In a list of hosts for manualroute, if one item (either because of multi-
547 homing or because of multiple MX records with /mx) generated more than
548 one IP address, and the following item turned out to be the local host,
549 all the secondary addresses of the first item were incorrectly removed
550 from the list, along with the local host and any following hosts (which
551 is what is supposed to happen).
552
ebeaf996
PH
553PH/40 When Exim receives a message, it writes the login name, uid, and gid of
554 whoever called Exim into the -H file. In the case of the daemon it was
555 behaving confusingly. When first started, it used values for whoever
556 started the daemon, but after a SIGHUP it used the Exim user (because it
557 calls itself on a restart). I have changed the code so that it now always
558 uses the Exim user.
559
2679d413
PH
560PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
561 message are rejected with the same error (e.g. no authentication or bad
562 sender address), and a DATA command is nevertheless sent (as can happen
563 with PIPELINING or a stupid MUA), the error message that was given to the
564 RCPT commands is included in the rejection of the DATA command. This is
565 intended to be helpful for MUAs that show only the final error to their
566 users.
567
84024b72
PH
568PH/42 Another patch from the Sieve maintainer.
569
8005d38e
SC
570SC/02 Eximstats - Differentiate between permanent and temporary rejects.
571 Eximstats - Fixed some broken HTML links and added missing column headers
572 (Jez Hancock).
573 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
574 columns for Rejects, Temp Rejects, Ham, and Spam rows.
575
3298c6c6
SC
576SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
577
a43a27c5
PH
578PH/43 Yet another patch from the Sieve maintainer.
579
58eb016e 580PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
581 the response to the final '.' that terminates a message, but only in the
582 case where the client has not sent further data following the '.'
583 (unfortunately, this is allowed). However, in many cases there won't be
584 any further data because there won't be any more messages to send. A call
585 to select() can be used: if it shows that the input is "ready", there is
586 either input waiting, or the socket has been closed. An attempt to read
587 the next input character can distinguish the two cases. Previously, Exim
58eb016e 588 would have sent an OK response which the client would never have see.
563b63fa
PH
589 This could lead to message repetition. This fix should cure that, at
590 least in a lot of common cases.
58eb016e 591
b43a74ea
PH
592PH/45 Do not advertise STARTTLS in response to HELP unless it would be
593 advertised in response to EHLO.
594
b4ed4da0 595
5dd1517f
PH
596Exim version 4.66
597-----------------
598
599PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
600 fixed by 4.65/MH/01 (is this a record?) are fixed:
601
602 (i) An empty string was always treated as zero by the numeric comparison
603 operators. This behaviour has been restored.
604
605 (ii) It is documented that the numeric comparison operators always treat
606 their arguments as decimal numbers. This was broken in that numbers
607 starting with 0 were being interpreted as octal.
608
609 While fixing these problems I realized that there was another issue that
610 hadn't been noticed. Values of message_size_limit (both the global option
611 and the transport option) were treated as octal if they started with 0.
612 The documentation was vague. These values are now always treated as
613 decimal, and I will make that clear in the documentation.
614
615
93cfa765
TK
616Exim version 4.65
617-----------------
618
619TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
620 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
621 versions. (#438)
622
d6066548
MH
623MH/01 Don't check that the operands of numeric comparison operators are
624 integers when their expansion is in "skipping" mode (fixes bug
625 introduced by 4.64-PH/07).
626
4362ff0d
PH
627PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
628 child addresses, Exim now panics and dies. Previously, because the count
629 is held in a short int, deliveries were likely to be lost. As such a
630 large number of recipients for a single message is ridiculous
631 (performance will be very, very poor), I have chosen to impose a limit
632 rather than extend the field.
633
93cfa765 634
944e9e9c
TF
635Exim version 4.64
636-----------------
aa41d2de 637
21d74bd9
TK
638TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
639 leftover -K file (the existence of which was triggered by #402).
640 While we were at it, introduced process PID as part of the -K
641 filename. This should rule out race conditions when creating
642 these files.
643
644TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
645 processing considerably. Previous code took too long for large mails,
646 triggering a timeout which in turn triggers #401.
647
648TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
649 in the DK code in transports.c. sendfile() is not really portable,
650 hence the _LINUX specificness.
944e9e9c
TF
651
652TF/01 In the add_headers option to the mail command in an Exim filter,
653 there was a bug that Exim would claim a syntax error in any
654 header after the first one which had an odd number of characters
655 in the field name.
656
2b1c6e3a
PH
657PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
658 callout verification, Exim cached a "reject" for the entire domain. This
659 is correct for most verifications, but it is not correct for a recipient
660 verification with use_sender or use_postmaster set, because in that case
661 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
662 case of MAIL FROM:<> rejection from other early rejections (e.g.
663 rejection of HELO). When verifying a recipient using a non-null MAIL
664 address, the cache is ignored if it shows MAIL FROM:<> rejection.
665 Whatever the result of the callout, the value of the domain cache is
666 left unchanged (for any other kind of callout, getting as far as trying
667 RCPT means that the domain itself is ok).
668
1f872c80
PH
669PH/02 Tidied a number of unused variable and signed/unsigned warnings that
670 gcc 4.1.1 threw up.
671
672PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
673 manifest itself as EPIPE rather than ECONNECT. When tidying away a
674 session, the daemon ignores ECONNECT errors and logs others; it now
675 ignores EPIPE as well.
676
d203e649
PH
677PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
678 (quoted-printable decoding).
679
cc2ed8f7 680PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 681 later the small subsequent patch to fix an introduced bug.
f951fd57 682
ddfcd446
PH
683PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
684
d45b1de8
PH
685PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
686
687PH/08 An error is now given if message_size_limit is specified negative.
688
38a0a95f 689PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 690 to be given (somewhat) arbitrary names.
38a0a95f 691
a2405d83
JJ
692JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
693 in 4.64-PH/09.
694
695JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
696 miscellaneous code fixes
697
6ea85e9a
PH
698PH/10 Added the log_reject_target ACL modifier to specify where to log
699 rejections.
700
26da7e20
PH
701PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
702 hostname. This is wrong, because it relates to the incoming message (and
703 probably the interface on which it is arriving) and not to the outgoing
704 callout (which could be using a different interface). This has been
705 changed to use the value of the helo_data option from the smtp transport
706 instead - this is what is used when a message is actually being sent. If
707 there is no remote transport (possible with a router that sets up host
708 addresses), $smtp_active_hostname is used.
6ea85e9a 709
14aa5a05 710PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 711 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
712 (a) The code assumed that strncpy() returns a negative number on buffer
713 overflow, which isn't the case. Replaced with Exim's string_format()
714 function.
715 (b) There were several signed/unsigned issues. I just did the minimum
716 hacking in of casts. There is scope for a larger refactoring.
717 (c) The code used strcasecmp() which is not a standard C function.
718 Replaced with Exim's strcmpic() function.
719 (d) The code set only $1; it now sets $auth1 as well.
720 (e) A simple test gave the error "authentication client didn't specify
721 service in request". It would seem that Dovecot has changed its
722 interface. Fortunately there's a specification; I followed it and
723 changed what the client sends and it appears to be working now.
724
ff75a1f7
PH
725PH/13 Added $message_headers_raw to provide the headers without RFC 2047
726 decoding.
727
e6f6568e
PH
728PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
729 address A is aliased to B and C, where B exists and C does not. Without
730 -v the output is "A verified" because verification stops after a
731 successful redirection if more than one address is generated. However,
732 with -v the child addresses are also verified. Exim was outputting "A
733 failed to verify" and then showing the successful verification for C,
734 with its parentage. It now outputs "B failed to verify", showing B's
735 parentage before showing the successful verification of C.
736
d6f6e0dc
PH
737PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
738 look up a TXT record in a specific list after matching in a combined
739 list.
740
322050c2
PH
741PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
742 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
743 they consult the DNS. I had assumed they would set it the way they
744 wanted; and indeed my experiments on Linux seem to show that in some
745 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
746 To be on the safe side, however, I have now made the interface to
747 host_find_byname() similar to host_find_bydns(), with an argument
748 containing the DNS resolver options. The host_find_byname() function now
749 sets these options at its start, just as host_find_bydns() does. The smtp
750 transport options dns_qualify_single and dns_search_parents are passed to
751 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
752 of host_find_byname() use the default settings of RES_DEFNAMES
753 (qualify_single) but not RES_DNSRCH (search_parents).
754
08955dd3
PH
755PH/17 Applied (a modified version of) Nico Erfurth's patch to make
756 spool_read_header() do less string testing, by means of a preliminary
757 switch on the second character of optional "-foo" lines. (This is
758 overdue, caused by the large number of possibilities that now exist.
759 Originally there were few.) While I was there, I also converted the
760 str(n)cmp tests so they don't re-test the leading "-" and the first
761 character, in the hope this might squeeze out yet more improvement.
762
1eccaa59
PH
763PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
764 flag allowing group syntax was set by the header_syntax check but not
765 turned off, possible causing trouble later; (2) The flag was not being
766 set at all for the header_verify test, causing "group"-style headers to
767 be rejected. I have now set it in this case, and also caused header_
768 verify to ignore an empty address taken from a group. While doing this, I
769 came across some other cases where the code for allowing group syntax
770 while scanning a header line wasn't quite right (mostly, not resetting
771 the flag correctly in the right place). These bugs could have caused
772 trouble for malformed header lines. I hope it is now all correct.
773
602e59e5
PH
774PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
775 with the "reply" argument non-NULL. The code, however (which originally
776 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
777 but it didn't always do it. This confused somebody who was copying the
778 code for some other use. I have removed all the tests.
779
411ef850
PH
780PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
781 feature that was used to support insecure browsers during the U.S. crypto
782 embargo. It requires special client support, and Exim is probably the
783 only MTA that supported it -- and would never use it because real RSA is
784 always available. This code has been removed, because it had the bad
785 effect of slowing Exim down by computing (never used) parameters for the
786 RSA_EXPORT functionality.
787
7befa435
PH
788PH/21 On the advice of Timo Sirainen, added a check to the dovecot
789 authenticator to fail if there's a tab character in the incoming data
790 (there should never be unless someone is messing about, as it's supposed
791 to be base64-encoded). Also added, on Timo's advice, the "secured" option
792 if the connection is using TLS or if the remote IP is the same as the
793 local IP, and the "valid-client-cert option" if a client certificate has
794 been verified.
795
48da4259 796PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
797 authenticators. This can be used for authorization after authentication
798 succeeds. (In the case of plaintext, it servers for both authentication
799 and authorization.)
800
48da4259
PH
801PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
802 if any retry times were supplied.
803
d1d5595c
PH
804PH/24 Exim crashed if verify=helo was activated during an incoming -bs
805 connection, where there is no client IP address to check. In this
806 situation, the verify now always succeeds.
807
0ef732d9
PH
808PH/25 Applied John Jetmore's -Mset patch.
809
328895cc
PH
810PH/26 Added -bem to be like -Mset, but loading a message from a file.
811
fd700877
PH
812PH/27 In a string expansion for a processed (not raw) header when multiple
813 headers of the same name were present, leading whitespace was being
814 removed from all of them, but trailing whitespace was being removed only
815 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
816 before concatenation. Completely empty headers in a concatenation (as
817 before) are ignored.
fd700877 818
8dce1a6f
PH
819PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
820 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
821
17af4a17
PH
822PH/29 [Removed. This was a change that I later backed out, and forgot to
823 correct the ChangeLog entry (that I had efficiently created) before
824 committing the later change.]
f6c332bd
PH
825
826PH/30 Exim was sometimes attempting to deliver messages that had suffered
827 address errors (4xx response to RCPT) over the same connection as other
828 messages routed to the same hosts. Such deliveries are always "forced",
829 so retry times are not inspected. This resulted in far too many retries
830 for the affected addresses. The effect occurred only when there were more
831 hosts than the hosts_max_try setting in the smtp transport when it had
832 the 4xx errors. Those hosts that it had tried were not added to the list
833 of hosts for which the message was waiting, so if all were tried, there
834 was no problem. Two fixes have been applied:
835
836 (i) If there are any address or message errors in an SMTP delivery, none
837 of the hosts (tried or untried) are now added to the list of hosts
838 for which the message is waiting, so the message should not be a
839 candidate for sending over the same connection that was used for a
840 successful delivery of some other message. This seems entirely
841 reasonable: after all the message is NOT "waiting for some host".
842 This is so "obvious" that I'm not sure why it wasn't done
843 previously. Hope I haven't missed anything, but it can't do any
844 harm, as the worst effect is to miss an optimization.
845
846 (ii) If, despite (i), such a delivery is accidentally attempted, the
847 routing retry time is respected, so at least it doesn't keep
848 hammering the server.
849
c1114884
PH
850PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
851 in ${readsocket because some servers need this prod.
852
7a0743eb
PH
853PH/32 Added some extra debug output when updating a wait-xxx database.
854
0d85fa3f
PH
855PH/33 The hint "could be header name not terminated by colon", which has been
856 given for certain expansion errors for a long time, was not being given
857 for the ${if def:h_colon_omitted{... case.
858
1bf43b78
PH
859PH/34 The spec says: "With one important exception, whenever a domain list is
860 being scanned, $domain contains the subject domain." There was at least
861 one case where this was not true.
862
520de300
PH
863PH/35 The error "getsockname() failed: connection reset by peer" was being
864 written to the panic log as well as the main log, but it isn't really
865 panic-worthy as it just means the connection died rather early on. I have
866 removed the panic log writing for the ECONNRESET error when getsockname()
867 fails.
868
48c7f9e2
PH
869PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
870 runs only) independently of the message's sender address. This meant
871 that, if the 4xx error was in fact related to the sender, a different
872 message to the same recipient with a different sender could confuse
873 things. In particualar, this can happen when sending to a greylisting
874 server, but other circumstances could also provoke similar problems.
875 I have changed the default so that the retry time for these errors is now
876 based a combination of the sender and recipient addresses. This change
877 can be overridden by setting address_retry_include_sender=false in the
878 smtp transport.
879
99ea1c86
PH
880PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
881 remote server are returned as part of bounce messages. This was not
882 happening for LMTP over a pipe (the lmtp transport), but now it is the
883 same for both kinds of LMTP.
884
a2042e78
PH
885PH/38 Despite being documented as not happening, Exim was rewriting addresses
886 in header lines that were in fact CNAMEs. This is no longer the case.
887
4fbcfc2e
PH
888PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
889 and queue runs started by the daemon processed all messages. This has
890 been fixed so that -R and -S can now usefully be given with -q<time>.
891
aa41d2de
PH
892PH/40 Import PCRE release 6.7 (fixes some bugs).
893
af561417
PH
894PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
895
3cc66b45
PH
896PH/42 Give an error if -q is specified more than once.
897
194cc0e4
PH
898PH/43 Renamed the variables $interface_address and $interface_port as
899 $received_ip_address and $received_port, to make it clear that these
900 values apply to message reception, and not to the outgoing interface when
901 a message is delivered. (The old names remain recognized, of course.)
902
a401ddaa
PH
903PH/44 There was no timeout on the connect() call when using a Unix domain
904 socket in the ${readsocket expansion. There now is.
905
4e88a19f
PH
906PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
907 be meaningful with "accept".
908
d7d7b289
SC
909SC/01 Eximstats V1.43
910 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
911
912SC/02 Eximstats V1.44
913 Use a glob alias rather than an array ref in the generated
914 parser. This improves both readability and performance.
915
916SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
917 Collect SpamAssassin and rejection statistics.
918 Don't display local sender or destination tables unless
919 there is data to show.
920 Added average volumes into the top table text output.
921
922SC/04 Eximstats V1.46
923 Collect data on the number of addresses (recipients)
924 as well as the number of messages.
925
926SC/05 Eximstats V1.47
927 Added 'Message too big' to the list of mail rejection
928 reasons (thanks to Marco Gaiarin).
929
930SC/06 Eximstats V1.48
931 Mainlog lines which have GMT offsets and are too short to
932 have a flag are now skipped.
933
934SC/07 Eximstats V1.49 (Alain Williams)
935 Added the -emptyok flag.
936
937SC/08 Eximstats V1.50
938 Fixes for obtaining the IP address from reject messages.
939
0ea2a468
JJ
940JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
941 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
942 whitesspace changes from 4.64-PH/27
943
944JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
945 match 4.64-PH/13
946
947JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
948 are found, allow negative numbers in numeric criteria)
949
950JJ/06 exipick.20061117.2, added new $message_body_missing variable
951
952JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
953 to match changes made in 4.64-PH/43
954
8a10f5a4
PH
955PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
956
30e18802
PH
957PH/47 Put in an explicit test for a DNS lookup of an address record where the
958 "domain" is actually an IP address, and force a failure. This locks out
959 those revolvers/nameservers that support "A-for-A" lookups, in
960 contravention of the specifications.
961
55728a4f
PH
962PH/48 When a host name was looked up from an IP address, and the subsequent
963 forward lookup of the name timed out, the host name was left in
964 $sender_host_name, contrary to the specification.
d7d7b289 965
d7837193
PH
966PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
967 restricted to single-key lookups, Exim was not diagnosing an error if
968 * or *@ was used with a query-style lookup.
969
87054a31
PH
970PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
971
ea2c01d2
MH
972MH/01 local_scan ABI version incremented to 1.1. It should have been updated
973 long ago, but noone interested enough thought of it. Let's just say that
974 the "1.1" means that there are some new functions that weren't there at
975 some point in the past.
976
e4fa6968
PH
977PH/51 Error processing for expansion failure of helo_data from an smtp
978 transport during callout processing was broken.
979
56f5d9bd
PH
980PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
981 tested/used via the -bh/-bhc/-bs options.
982
922e1c28
PH
983PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
984 bug, fixed in subsequent PCRE releases).
985
21eb6e72
PH
986PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
987 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
988
a0540757
PH
989PH/55 Check for a ridiculously long file name in exim_dbmbuild.
990
944e9e9c 991
478be7b0
SC
992Exim version 4.63
993-----------------
994
995SC/01 Use a glob alias rather than an array ref in eximstats generated
996 parser. This improves both readability and performance.
997
998SC/02 Collect SpamAssassin and rejection statistics in eximstats.
999 Don't display local sender or destination tables in eximstats unless
1000 there is data to show.
1001 Added average volumes into the eximstats top table text output.
1002
1003SC/03 Collect data on the number of addresses (recipients) as well
1004 as the number of messages in eximstats.
1005
2b965a65
TF
1006TF/01 Correct an error in the documentation for the redirect router. Exim
1007 does (usually) call initgroups() when daemonizing.
478be7b0 1008
45b91596
PH
1009TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1010 with consistent privilege compared to when running as a daemon.
478be7b0 1011
c59f5781
TF
1012TF/03 Note in the spec that $authenticated_id is not set for local
1013 submissions from trusted users.
1014
90fc3069
TF
1015TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1016 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1017
6083aca0
TF
1018TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1019 by adding some example configuration directives to the default
1020 configuration file. A little bit of work is required to uncomment the
1021 directives and define how usernames and passwords are checked, but
1022 there is now a framework to start from.
1023
765b530f
PH
1024PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1025 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1026 without this. I don't know how relevant this is to other LDAP libraries.
1027
4e167a8c
PH
1028PH/02 Add the verb name to the "unknown ACL verb" error.
1029
4608d683
PH
1030PH/03 Magnus Holmgren's patch for filter_prepend_home.
1031
b8dc3e4a
PH
1032PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1033
5418e93b
PH
1034PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1035 directory not expanded when it should be if an expanded home directory
1036 was set for the address (which is overridden by the transport).
1037
b4a9bda2
PH
1038PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1039 libradius.
1040
45b91596
PH
1041PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1042 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1043 because it is too late at that time, and has no effect.
1044
5547e2c5
PH
1045PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1046 security issue with \' (bugzilla #107). I could not use the
1047 PQescapeStringConn() function, because it needs a PGconn value as one of
1048 its arguments.
1049
dbcef0ea
PH
1050PH/08 When testing addresses using -bt, indicate those final addresses that
1051 are duplicates that would not cause an additional delivery. At least one
1052 person was confused, thinking that -bt output corresponded to deliveries.
1053 (Suppressing duplicates isn't a good idea as you lose the information
1054 about possibly different redirections that led to the duplicates.)
1055
25257489
PH
1056PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1057 systems where poll() doesn't work, in particular OS X.
1058
c816d124
PH
1059PH/10 Added more information to debugging output for retry time not reached.
1060
a9ccd69a
PH
1061PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1062 operations in malware.c.
1063
75fa1910
PH
1064PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1065 signatures.
1066
a7d7aa58
PH
1067PH/13 If write_rejectlog was set false when logging was sent to syslog with
1068 syslog_duplication set false, log lines that would normally be written
1069 both the the main log and to the reject log were not written to syslog at
1070 all.
1071
42119b09
PH
1072PH/14 In the default configuration, change the use of "message" in ACL warn
1073 statements to "add_header".
1074
41609df5
PH
1075PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1076 not followed by a command (e.g. "seen endif").
1077
a5bd321b
PH
1078PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1079 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1080 latter.
1081
e85a7ad5 1082PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1083 so that it is now:
1084
e85a7ad5
PH
1085 ${if or { \
1086 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1087 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1088 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1089 }{no}{yes}}
1090
e85a7ad5
PH
1091 The Auto-Submitted: and various List- headers are standardised, whereas I
1092 don't think Precedence: ever was.
5dff5817 1093
d8fe1c03
PH
1094PH/18 Refactored debugging code in route_finduser() to show more information,
1095 in particular, the error code if getpwnam() issues one.
1096
16282d2b
PH
1097PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1098 This is apparently needed in addition to the PH/07 change above to avoid
1099 any possible encoding problems.
1100
35d40a98
PH
1101PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1102 but not after initializing Perl.
1103
034d99ab
PH
1104PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1105 output them only if debugging. By default they are written stderr,
1106 apparently, which is not desirable.
1107
6ec97b1b
PH
1108PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1109 queries.
1110
e22ca4ac
JJ
1111JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1112 --not options
1113
1114JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1115
33d73e3b
PH
1116PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1117 authenticated or an ident call has been made. Suppress the default
1118 values for $authenticated_id and $authenticated_sender (but permit -oMai
1119 and -oMas) when testing with -bh.
1120
9ecb03f3
PH
1121PH/24 Re-jigged the order of the tests in the default configuration so that the
1122 tests for valid domains and recipients precede the DNS black list and CSA
1123 tests, on the grounds that those ones are more expensive.
1124
084efe8d
PH
1125PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1126 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1127 This bug exists in every version of Exim that I still have, right back to
1128 0.12.
1129
366fc9f0
PH
1130PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1131 However, an attempt to turn on case-sensitivity in a regex key by
1132 including (?-i) didn't work because the subject string was already
1133 lowercased, and the effects were non-intuitive. It turns out that a
1134 one-line patch can be used to allow (?-i) to work as expected.
1135
c59f5781 1136
c887c79e
TF
1137Exim version 4.62
1138-----------------
1139
1140TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1141 other effects) broke the use of negated acl sub-conditions.
1142
1cce3af8
PH
1143PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1144 patch).
1145
afb3eaaf
PH
1146PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1147 "Deny" causes Exim to reject the incoming connection with a 554 error.
1148 Unfortunately, if there is a major crisis, such as a disk failure,
1149 tcp-wrappers gives "deny", whereas what one would like would be some
1150 kind of temporary error. A kludge has been added to help with this.
1151 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1152 554 error is used if errno is still zero or contains ENOENT (which occurs
1153 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1154 451 error is used.
1155
e173618b
PH
1156PH/03 Add -lutil to the default FreeBSD LIBS setting.
1157
dd16e114
PH
1158PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1159 errors. Otherwise a message that provokes a temporary error (when other
1160 messages do not) can cause a whole host to time out.
1161
f7fd3850
PH
1162PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1163 addresses were routed directly to files or pipes from a redirect router.
1164 File deliveries just didn't batch; pipe deliveries might have suffered
1165 odd errors.
1166
d87df92c
PH
1167PH/06 A failure to get a lock for a hints database would erroneously always say
1168 "Failed to get write lock", even when it was really a read lock.
1169
7e9f683d
PH
1170PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1171 of 0600. This has been changed to use the value of the lockfile_mode
1172 option (which defaults to 0600).
1173
bfad5236
PH
1174PH/08 Applied small patch from the Sieve maintainer.
1175
01c490df
PH
1176PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1177 folder from quota calculations, a direct delivery into this folder messed
1178 up the contents of the maildirsize file. This was because the regex was
1179 used only to exclude .Trash (or whatever) when the size of the mailbox
1180 was calculated. There was no check that a delivery was happening into an
1181 excluded directory. This bug has been fixed by ignoring all quota
1182 processing for deliveries into excluded directories.
1183
d6629cdc
PH
1184PH/10 Added the maildirfolder_create_regex option to appendfile.
1185
1cce3af8 1186
214e2000
PH
1187Exim version 4.61
1188-----------------
1189
1190PH/01 The code for finding all the local interface addresses on a FreeBSD
1191 system running IPv6 was broken. This may well have applied to all BSD
1192 systems, as well as to others that have similar system calls. The broken
1193 code found IPv4 interfaces correctly, but gave incorrect values for the
1194 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1195 that it would not match correctly against @[] and not recognize the IPv6
1196 addresses as local.
1197
f9daeae0
PH
1198PH/02 The ipliteral router was not recognizing addresses of the form user@
1199 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1200
7e66e54d
PH
1201PH/03 Added disable_ipv6.
1202
c8ea1597
PH
1203PH/04 Changed $reply_address to use the raw form of the headers instead of the
1204 decoded form, because it is most often used to construct To: headers
1205 lines in autoreplies, and the decoded form may well be syntactically
1206 invalid. However, $reply_address has leading white space removed, and all
1207 newlines turned into spaces so that the autoreply transport does not
1208 grumble.
1209
911f6fde
PH
1210PH/05 If group was specified without a user on a router, and no group or user
1211 was specified on a transport, the group from the router was ignored.
1212
47ca6d6c
PH
1213PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1214 for visible compile-time settings that can be used to change these
1215 numbers, for those that want even more. Backwards compatibility with old
1216 spool files has been maintained. However, going back to a previous Exim
1217 release will lost any variables that are in spool files.
1218
ed0e9820
PH
1219PH/07 Two small changes when running in the test harness: increase delay when
1220 passing a TCP/IP connection to a new process, in case the original
1221 process has to generate a bounce, and remove special handling of
1222 127.0.0.2 (sic), which is no longer necessary.
1223
eff37e47
PH
1224PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1225 be the same on different OS.
1226
1921d2ea
PH
1227PH/09 Moved a debug statement in filter processing to avoid a race problem when
1228 testing.
1229
b3f69ca8
JJ
1230JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1231 whether --show-vars was specified or not
1232
1233JJ/02 exipick: Added support for new ACL variable spool format introduced
1234 in 4.61-PH/06
1235
424a1c63
PH
1236PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1237 syntactically invalid From: or Reply-to: line, and a filter used this to
1238 generate an autoreply, and therefore failed to obtain an address for the
1239 autoreply, Exim could try to deliver to a non-existent relative file
1240 name, causing unrelated and misleading errors. What now happens is that
1241 it logs this as a hard delivery error, but does not attempt to create a
1242 bounce message.
1243
7a100415
PH
1244PH/11 The exinext utility has a -C option for testing purposes, but although
1245 the given file was scanned by exinext itself; it wasn't being passed on
1246 when Exim was called.
1247
19b9dc85
PH
1248PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1249 an end-of-file indication when reading a command response.
1250
309bd837
PH
1251PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1252 compiled. In many other places in Exim, IPv6 addresses are always
1253 recognized, so I have changed this. It also means that IPv4 domain
1254 literals of the form [IPV4:n.n.n.n] are now always recognized.
1255
59e82a2a
PH
1256PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1257 used if the router is not running as root, for example, when verifying at
1258 ACL time, or when using -bh. The debugging output from this situation was
1259 non-existent - all you got was a failure to exec. I have made two
1260 changes:
1261
1262 (a) Failures to set uid/gid, the current directory, or a process leader
1263 in a subprocess such as that created by queryprogram now generate
1264 suitable debugging ouput when -d is set.
1265
1266 (b) The queryprogram router detects when it is not running as root,
1267 outputs suitable debugging information if -d is set, and then runs
1268 the subprocess without attempting to change uid/gid.
1269
9edc04ce
PH
1270PH/15 Minor change to Makefile for building test_host (undocumented testing
1271 feature).
1272
1349e1e5
PH
1273PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1274 additional section of a DNS packet that returns MX or SRV records.
1275 Instead, it always explicitly searches for A/AAAA records. This avoids
1276 major problems that occur when a DNS server includes only records of one
1277 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1278 fixed another bug: if SRV records were looked up and the corresponding
1279 address records were *not* found in the additional section, the port
1280 values from the SRV records were lost.
1281
ea49d0e1
PH
1282PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1283 using the correct key (the original address) when searching the retry
1284 rules in order to find which one to use for generating the retry hint.
1285
064a94c9
PH
1286PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1287 adding the default one. Similarly, if it contains a Reply-To: header, the
1288 errors_reply_to option, if set, is not used.
1289
727071f8
PH
1290PH/19 When calculating a retry time, Exim used to measure the "time since
1291 failure" by looking at the "first failed" field in the retry record. Now
1292 it does not use this if it is later than than the arrival time of the
1293 message. Instead it uses the arrival time. This makes for better
1294 behaviour in cases where some deliveries succeed, thus re-setting the
1295 "first failed" field. An example is a quota failure for a huge message
1296 when small messages continue to be delivered. Without this change, the
1297 "time since failure" will always be short, possible causing more frequent
1298 delivery attempts for the huge message than are intended.
dd16e114 1299 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1300
f78eb7c6
PH
1301PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1302 $1, $2, $3) because the numerical variables can be reset during some
1303 expansion items (e.g. "match"), thereby losing the authentication data.
1304
21c28500
PH
1305PH/21 Make -bV show the size of off_t variables so that the test suite can
1306 decide whether to run tests for quotas > 2G.
1307
1308PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1309 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1310 filecount value is greater than 2G or if a quota value is greater than 2G
1311 on a system where the size of off_t is not greater than 4, a panic error
1312 is given.
1313
1688f43b
PH
1314PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1315 never match. The debug and -bh output now contains an explicit error
1316 message indicating a malformed IPv4 address or mask.
1317
1318PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1319 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1320 PH/23 above applies.
1321
9675b384
PH
1322PH/25 Do not write to syslog when running in the test harness. The only
1323 occasion when this arises is a failure to open the main or panic logs
1324 (for which there is an explicit test).
1325
6a3f1455
PH
1326PH/26 Added the /no_tell option to "control=freeze".
1327
dac79d3e
PH
1328PH/27 If a host name lookup failed very early in a connection, for example, if
1329 the IP address matched host_lookup and the reverse lookup yielded a name
1330 that did not have a forward lookup, an error message of the form "no IP
1331 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1332 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1333
5977a0b3
PH
1334PH/28 An enabling patch from MH: add new function child_open_exim2() which
1335 allows the sender and the authenticated sender to be set when
1336 submitting a message from within Exim. Since child_open_exim() is
1337 documented for local_scan(), the new function should be too.
1338
c91535f3
PH
1339PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1340 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1341 results in an empty string is now treated as unset.
1342
0d46a8c8
PH
1343PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1344
278c6e6c
PH
1345PH/31 Added sender_verify_fail logging option.
1346
2cbb4081
PH
1347PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1348 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1349 tidied the source and removed it altogether.
1350
3eef829e
PH
1351PH/33 When a queue run was abandoned because the load average was too high, a
1352 log line was always written; now it is written only if the queue_run log
1353 selector is set. In addition, the log line for abandonment now contains
1354 information about the queue run such as the pid. This is always present
1355 in "start" and "stop" lines but was omitted from the "abandon" line.
1356
1ab95fa6
PH
1357PH/34 Omit spaces between a header name and the colon in the error message that
1358 is given when verify = headers_syntax fails (if there are lots of them,
1359 the message gets confusing).
1360
230205fc
PH
1361PH/35 Change the default for dns_check_names_pattern to allow slashes within
1362 names, as there are now some PTR records that contain slashes. This check
1363 is only to protect against broken name servers that fall over on strange
1364 characters, so the fact that it applies to all lookups doesn't matter.
1365
75e0e026
PH
1366PH/36 Now that the new test suite is complete, we can remove some of the
1367 special code in Exim that was needed for the old test suite. For example,
1368 sorting DNS records because real resolvers return them in an arbitrary
1369 order. The new test suite's fake resolver always returns records in the
1370 same order.
1371
1372PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1373 bounces) except when queue_only is set, to avoid logging races between
1374 the different processes.
1375
145396a6
PH
1376PH/38 Panic-die if .include specifies a non-absolute path.
1377
3cd34f13
PH
1378PH/39 A tweak to the "H" retry rule from its user.
1379
11121d3d
JJ
1380JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1381 a label. They prevented compilation on older perls.
1382
1383JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1384 a warning to be raised on newish perls.
1385
1386JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1387 on queue. Changes to match documented behaviour of showing count of
1388 messages matching specified criteria.
1389
8def5aaf
PH
1390PH/40 Changed the default ident timeout from 30s to 5s.
1391
929ba01c
PH
1392PH/41 Added support for the use of login_cap features, on those BSD systems
1393 that have them, for controlling the resources used by pipe deliveries.
1394
2632889e
PH
1395PH/42 The content-scanning code uses fopen() to create files in which to put
1396 message data. Previously it was not paying any attention to the mode of
1397 the files. Exim runs with umask(0) because the rest of the code creates
1398 files with open(), and sets the required mode explicitly. Thus, these
1399 files were ending up world-writeable. This was not a big issue, because,
1400 being within the spool directory, they were not world-accessible. I have
1401 created a function called modefopen, which takes an additional mode
1402 argument. It sets umask(777), creates the file, chmods it to the required
1403 mode, then resets the umask. All the relevant calls to fopen() in the
1404 content scanning code have been changed to use this function.
1405
944a9c55
PH
1406PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1407 to 24 hours. This avoids potential overflow problems when processing G
1408 and H retry rules. I suspect nobody ever tinkers with this value.
1409
4a23603b
PH
1410PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1411
4730f942
PH
1412PH/45 When the plaintext authenticator is running as a client, the server's
1413 challenges are checked to ensure they are valid base64 strings. By
1414 default, the authentication attempt is cancelled if an invalid string is
1415 received. Setting client_ignore_invalid_base64 true ignores these errors.
1416 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1417 they are received. Thus, the responses can be made to depend on the
1418 challenges. If an invalid string is ignored, an empty string is placed in
1419 the variable.
1420
30dba1e6
PH
1421PH/46 Messages that are created by the autoreply transport now contains a
1422 References: header, in accordance with RFCs 2822 and 3834.
1423
382afc6b
PH
1424PH/47 Added authenticated_sender_force to the smtp transport.
1425
a86229cf
PH
1426PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1427
50c99ba6
PH
1428PH/49 Installed latest patch from the Sieve maintainer.
1429
d35e429d
PH
1430PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1431 was also set, the appendfile transport was unnecessarily scanning a
1432 directory of message files (e.g. for maildir delivery) to find the count
1433 of files (along with the size), even though it did not need this
1434 information. It now does the scan only if it needs to find either the
1435 size of the count of files.
1436
f90d018c
PH
1437PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1438
75def545
PH
1439PH/52 Two bugs concerned with error handling when the smtp transport is
1440 used in LMTP mode:
1441
1442 (i) Exim was not creating retry information for temporary errors given
1443 for individual recipients after the DATA command when the smtp transport
1444 was used in LMTP mode. This meant that they could be retried too
1445 frequently, and not timed out correctly.
1446
1447 (ii) Exim was setting the flag that allows error details to be returned
1448 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1449 recipients that were returned after the DATA command.
1450
1451PH/53 This is related to PH/52, but is more general: for any failing address,
1452 when detailed error information was permitted to be returned to the
1453 sender, but the error was temporary, then after the final timeout, only
1454 "retry timeout exceeded" was returned. Now it returns the full error as
1455 well as "retry timeout exceeded".
1456
c46782ef
PH
1457PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1458 do this, and (what is worse) MTAs that accept it.
1459
71fafd95
PH
1460PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1461 will now be deprecated.
1462
2c5db4fd
PH
1463PH/56 New os.c-cygwin from the Cygwin maintainer.
1464
9cf6b11a
JJ
1465JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1466 formats (previously only available in exim formats via -bpr, -bpru,
1467 and -bpra. Now also available in native and exiqgrep formats)
1468
1469JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1470 with very large, slow to parse queues
1471
1472JJ/08 exipick: added ! as generic prefix to negate any criteria format
1473
1474JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1475
898d150f
PH
1476PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1477 responses to authentication challenges, though it was showing the
1478 challenges; (ii) I've removed the CR characters from the debug output for
1479 SMTP output lines.
1480
46218253
PH
1481PH/58 Allow for the insertion of a newline as well as a space when a string
1482 is turned into more than one encoded-word during RFC 2047 encoding. The
1483 Sieve code now uses this.
1484
e97957bc
PH
1485PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1486 data_4xx, lost_connection, tls_required.
1487
81e509d7
PH
1488PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1489 message was being sent as an SMTP response.
1490
3d240ff7
PH
1491PH/61 Add -l and -k options to exicyclog.
1492
b37c4101
PH
1493PH/62 When verifying, if an address was redirected to one new address, so that
1494 verification continued, and the new address failed or deferred after
1495 having set something in $address_data, the value of $address_data was not
1496 passed back to the ACL. This was different to the case when no
1497 redirection occurred. The value is now passed back in both cases.
1498
79378e0f
PH
1499PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1500 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1501 use login_cap.h, so on its own it isn't the distinguishing feature. The
1502 new name refers directly to the setclassresources() function.
1503
e49c7bb4
PH
1504PH/65 Added configuration files for NetBSD3.
1505
d114ec46
PH
1506PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1507
f3d7df6c
PH
1508PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1509 is preferred over IPv4.
1510
715ab376
PH
1511PH/68 The bounce_return_message and bounce_return_body options were not being
1512 honoured for bounces generated during the reception of non-SMTP messages.
1513 In particular, this applied to messages rejected by the ACL. This bug has
1514 been fixed. However, if bounce_return_message is true and bounce_return_
1515 body is false, the headers that are returned for a non-SMTP message
1516 include only those that have been read before the error was detected.
1517 (In the case of an ACL rejection, they have all been read.)
1518
6b31b150
PH
1519PH/69 The HTML version of the specification is now built in a directory called
1520 spec_html instead of spec.html, because the latter looks like a path with
1521 a MIME-type, and this confuses some software.
1522
1523PH/70 Catch two compiler warnings in sieve.c.
1524
d515a917
PH
1525PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1526 function verify_get_ident() calls ip_connect() to connect a socket, but
1527 if the "connect()" function timed out, ip_connect() used to close the
1528 socket. However, verify_get_ident() also closes the socket later, and in
1529 between Exim writes to the log, which may get opened at this point. When
1530 the socket was closed in ip_connect(), the log could get the same file
1531 descriptor number as the socket. This naturally causes chaos. The fix is
1532 not to close the socket in ip_connect(); the socket should be closed by
1533 the function that creates it. There was only one place in the code where
1534 this was missing, in the iplookup router, which I don't think anybody now
1535 uses, but I've fixed it anyway.
1536
9b8fadde
PH
1537PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1538 well as to direct DNS lookups. Otherwise the handling of names in host
1539 lists is inconsistent and therefore confusing.
1540
214e2000 1541
5de37277
PH
1542Exim version 4.60
1543-----------------
1544
cc38ddbf
PH
1545PH/01 Two changes to the default runtime configuration:
1546
1547 (1) Move the checks for relay_from_hosts and authenticated clients from
1548 after to before the (commented out) DNS black list checks.
1549
1550 (2) Add control=submission to the relay_from_hosts and authenticated
1551 clients checks, on the grounds that messages accepted by these
1552 statements are most likely to be submissions.
5de37277 1553
72fdd6ae
PH
1554PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1555
1556 (1) Generate an error if the third argument for the ${prvs expansion is
1557 not a single digit.
1558
1559 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1560 string.
1561
1562 (3) Reset the variables that are obtained from the first argument of
1563 ${prvscheck and used in the second argument before leaving the code,
1564 because their memory is reclaimed, so using them afterwards may do
1565 silly things.
1566
1567 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1568 one (it's much easier than Tom thought :-).
1569
1570 (5) Because of (4), we can now allow for the use of $prvscheck_result
1571 inside the third argument.
cb9328de 1572
cb741023
PH
1573PH/03 For some reason, the default setting of PATH when running a command from
1574 a pipe transport was just "/usr/bin". I have changed it to
1575 "/bin:/usr/bin".
1576
f174f16e
PH
1577PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1578 anything to be listed in the output from -bV.
b2f5a032 1579
c25242d7
PH
1580PH/05 When a filter generated an autoreply, the entire To: header line was
1581 quoted in the delivery log line, like this:
1582
1583 => >A.N.Other <ano@some.domain> <original@ddress> ...
1584
1585 This has been changed so that it extracts the operative address. There
1586 may be more than one such address. If so, they are comma-separated, like
1587 this:
1588
1589 => >ano@some.domain,ona@other.domain <original@ddress> ...
1590
82c19f95
PH
1591PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1592 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1593 not being looked up in the rDNS to get a host name, Exim was showing the
1594 IP address twice in Received: lines, even though the IP addresses were
1595 identical. For example:
1596
1597 Received: from [1.2.3.4] (helo=[1.2.3.4])
1598
1599 However, if the real host name was known, it was omitting the HELO data
1600 if it matched the actual IP address. This has been tidied up so that it
1601 doesn't show the same IP address twice.
1602
d7ffbc12
PH
1603PH/07 When both +timestamp and +memory debugging was on, the value given by
1604 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1605 called by the debug printing, thereby overwriting the timestamp buffer.
1606 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1607
9f526266
PH
1608PH/08 When the original message was included in an autoreply transport, it
1609 always said "this is a copy of the message, including all the headers",
1610 even if body_only or headers_only was set. It now gives an appropriate
1611 message.
1612
87fcc8b9
PH
1613PH/09 Applied a patch from the Sieve maintainer which:
1614
1615 o fixes some comments
1616 o adds the (disabled) notify extension core
1617 o adds some debug output for the result of if/elsif tests
1618 o points to the current vacation draft in the documentation
1619 and documents the missing references header update
1620
1621 and most important:
1622
1623 o fixes a bug in processing the envelope test (when testing
1624 multiple envelope elements, the last element determinted the
1625 result)
1626
456682f5
PH
1627PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1628 Electronic Mail") by including:
1629
1630 Auto-submitted: auto-generated
1631
1632 in the messages that it generates (bounce messages and others, such as
1633 warnings). In the case of bounce messages for non-SMTP mesages, there was
1634 also a typo: it was using "Auto_submitted" (underscore instead of
1635 hyphen). Since every message generated by Exim is necessarily in response
1636 to another message, thes have all been changed to:
1637
1638 Auto-Submitted: auto-replied
1639
1640 in accordance with these statements in the RFC:
1641
1642 The auto-replied keyword:
1643
1644 - SHOULD be used on messages sent in direct response to another
1645 message by an automatic process,
1646
1647 - MUST NOT be used on manually-generated messages,
1648
1649 - MAY be used on Delivery Status Notifications (DSNs) and Message
1650 Disposition Notifications (MDNs),
1651
1652 - MUST NOT be used on messages generated by automatic or periodic
1653 processes, except for messages which are automatic responses to
1654 other messages.
1655
3e46c1aa
PH
1656PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1657 to the default Received: header definition.
456682f5 1658
49826d12
PH
1659PH/12 Added log selector acl_warn_skipped (default on).
1660
eba0c039
PH
1661PH/13 After a successful wildlsearch lookup, discard the values of numeric
1662 variables because (a) they are in the wrong storage pool and (b) even if
1663 they were copied, it wouldn't work properly because of the caching.
1664
a0d6ba8a
PH
1665PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1666 checking when decoding. Apparently there are clients that generate
1667 overlong encoded strings. Why am I not surprised?
1668
f0917727
PH
1669PH/15 If the first argument of "${if match_address" was not empty, but did not
1670 contain an "@" character, Exim crashed. Now it writes a panic log message
1671 and treats the condition as false.
1672
096fee00
PH
1673PH/16 In autoreply, treat an empty string for "once" the same as unset.
1674
024bd3c2
PH
1675PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1676 extension "envelope-auth". The code is finished and in agreement with
1677 other implementations, but there is no documentation so far and in fact,
1678 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1679 not changing the active code.
1680
1681 Print executed "if" and "elsif" statements when debugging is used. This
1682 helps a great deal to understand what a filter does.
1683
1684 Document more things not specified clearly in RFC3028. I had all this
1685 sorted out, when out of a sudden new issues came to my mind. Oops."
1686
df199fec
PH
1687PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1688 (Bugzilla #53).
1689
d27f1df3
PH
1690PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1691 canonical form (as documented). However, after a host name lookup from
1692 the IP address, check_host() was doing a simple string comparison with
1693 addresses acquired from the DNS when checking that the found name did
1694 have the original IP as one of its addresses. Since any found IPv6
1695 addresses are likely to be in abbreviated form, the comparison could
1696 fail. Luckily, there already exists a function for doing the comparison
1697 by converting both addresses to binary, so now that is used instead of
1698 the text comparison.
1699
96776534
PH
1700PH/20 There was another similar case to PH/19, when a complete host name was
1701 given in a host list; looking up its IP address could give an abbreviated
1702 form, whereas the current host's name might or might not be abbreviated.
1703 The same fix has been applied.
1704
5de37277 1705
9a799bc0
PH
1706Exim version 4.54
1707-----------------
1708
1709PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1710 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1711 It now does.
1712
99a4b039
PH
1713PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1714 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1715
1716PH/03 Typo: missing ".o" in src/pcre/Makefile.
1717
4b233853
PH
1718PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1719 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1720 Also, for "Auto-Submitted", treat anything other than "no" as
1721 non-personal, in accordance with RFC 3834. (Previously it treated
1722 anything starting "auto-" as non-personal.)
1723
8857ccfd
PH
1724TF/01 The control=submission/name=... option had a problem with syntax
1725 errors if the name included a slash character. The /name= option
1726 now slurps the rest of the string, so it can include any characters
1727 but it must come last in the list of options (after /sender_retain
1728 or /domain=).
1729
433a2980
PH
1730PH/05 Some modifications to the interface to the fake nameserver for the new
1731 testing suite.
1732
3e46c1aa 1733
9a799bc0 1734
e3a311ba
TK
1735Exim version 4.53
1736-----------------
1737
1738TK/01 Added the "success_on_redirect" address verification option. See
1739 NewStuff for rationale and an example.
1740
13b685f9
PH
1741PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1742
395ff96d
PH
1743PH/02 Patch to exigrep to allow it to work on syslog lines.
1744
5b68f6e4
PH
1745PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1746 fread() to skip over the body file's header line, because in Cygwin the
1747 header line is locked and is inaccessible.
1748
1ab52c69
PH
1749PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1750 co-exist for some time) to make it clear that it is the Exim ID that is
1751 referenced, not the Message-ID: header line.
1752
b07e6aa3
PH
1753PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1754 string_format() function, because snprintf() does not exist on all
1755 operating systems.
1756
254e032f
PH
1757PH/06 The use of forbid_filter_existstest now also locks out the use of the
1758 ${stat: expansion item.
1759
3af76a81
PH
1760PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1761 protocol synchronization error", to keep the pedants happy.
1762
2548ba04
PH
1763PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1764 well as for IRIX systems, when gcc is being used. See the host.c source
1765 file for comments.
1766
b6c6011d
PH
1767PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1768
cf39cf57
PH
1769PH/10 Named domain lists were not working if used in a queue_smtp_domains
1770 setting.
1771
f1513293
PH
1772PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1773 transport and to the smtp transport in LMTP mode.
1774
727549a4
PH
1775TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1776
af46795e
PH
1777PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1778 run a filter in a subprocess. This could lead to confusion in subsequent
1779 lookups in the parent process. There should also be a search_tidyup() at
1780 the end of the subprocess.
1781
d7b47fd0
PH
1782PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1783 only if the host matched helo_try_verify_hosts, which caused the
1784 verification to occur when the EHLO/HELO command was issued. The ACL just
1785 tested the remembered result. Now, if a previous verification attempt has
1786 not happened, "verify = helo" does it there and then.
1787
ee744174
JJ
1788JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1789
b582ab87
PH
1790TK/03 Fix log output including CR from clamd.
1791
41a13e0a
PH
1792PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1793 exist provoked a memory error which could cause a segfault.
1794
f625cc5a
PH
1795PH/15 Installed PCRE 6.2
1796
1797PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1798
21f7af35
PH
1799PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1800 of the problem. Specifically, suggested +O2 rather than +O1 for the
1801 HP-UX compiler.
1802
31480e42
PH
1803PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1804
2d280592
PH
1805PH/20 If a delivery was routed to a non-standard port by means of an SRV
1806 record, the port was not correctly logged when the outgoing_port log
1807 selector was set (it logged the transort's default port).
1808
7cd1141b
PH
1809PH/21 Added support for host-specific ports to manualroute, queryprogram,
1810 fallback_hosts, and "hosts" in the smtp transport.
1811
1812PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1813 host errors such as "Connection refused".
1814
750af86e
PH
1815PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1816 authentication with radiusclient 0.4.9:
1817
1818 - Error returned from rc_read_config was caught wrongly
1819 - Username/password not passed on to radius server due to wrong length.
1820
1821 The presumption is that some radiusclient API changes for 4.51/PH/17
1822 were not taken care of correctly. The code is still untested by me (my
1823 Linux distribution still has 0.3.2 of radiusclient), but it was
1824 contributed by a Radius user.
1825
1826PH/24 When doing a callout, the value of $domain wasn't set correctly when
1827 expanding the "port" option of the smtp transport.
1828
4304270b
TK
1829TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1830 while reading a MIME header. Thanks to Tom Hughes for a patch.
1831
750af86e
PH
1832PH/24 Include config.h inside local_scan.h so that configuration settings are
1833 available.
1834
64ffc24f
PH
1835PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1836 that in an ACL for RCPT (for example), you can examine exactly what was
1837 received.
1838
5dd9625b
PH
1839PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1840 commands, but it was not correctly comparing the address with the actual
1841 client host address. Thus, it would show the EHLO address in Received:
1842 header lines when this was not necessary.
1843
5591031b
PH
1844PH/27 Added the % operator to ${eval:}.
1845
ba18e66a
PH
1846PH/28 Exim tries to create and chdir to its spool directory when it starts;
1847 it should be ignoring failures (because with -C, for example, it has lost
1848 privilege). It wasn't ignoring creation failures other than "already
1849 exists".
1850
9cec981f
PH
1851PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1852 -bV or -d is used.
1853
aa2b5c79
PH
1854PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1855 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1856 too many continuations, the temporary file was not being removed, and the
1857 return code was incorrect.
aa2b5c79 1858
48a53b7f
PH
1859PH/31 Missing "BOOL" in function definition in filtertest.c.
1860
1c59d63b
PH
1861PH/32 Applied Sieve patches from the maintainer.
1862
671012da
TK
1863TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1864
1509d3a8
PH
1865PH/33 Added "verify = not_blind".
1866
1867PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1868 Local/Makefile (with some defaults set). These are used in built scripts
1869 such as exicyclog, but they have never been used in the exim_install
1870 script (though there are many overriding facilities there). I have
1871 arranged that the exim_install script now takes note of these two
1872 settings.
1873
1874PH/35 Installed configuration files for Dragonfly.
1875
2fe1a124
PH
1876PH/36 When a locally submitted message by a trusted user did not contain a
1877 From: header, and the sender address was obtained from -f or from an SMTP
1878 MAIL command, and the trusted user did not use -F to supply a sender
1879 name, $originator_name was incorrectly used when constructing a From:
1880 header. Furthermore, $originator_name was used for submission mode
1881 messages from external hosts without From: headers in a similar way,
1882 which is clearly wrong.
1883
8800895a
PH
1884PH/37 Added control=suppress_local_fixups.
1885
ccfdb010
PH
1886PH/38 When log_selector = +received_sender was set, and the addition of the
1887 sender made the log line's construction buffer exactly full, or one byte
1888 less than full, an overflow happened when the terminating "\n" was
1889 subsequently added.
1890
1130bfb0
PH
1891PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1892 when the result of a list match is failure because a DNS lookup failed.
1893
ebcb507f
PH
1894PH/40 RM_COMMAND is now used in the building process.
1895
c35e155c
PH
1896PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1897 the "build-* directories that it finds.
1898
95d1f782
PH
1899PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1900 address in a domain literal was a prefix of an interface address.
1901
fd6de02e
PH
1902PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1903 when verifying a sender address, unless rewrite_headers is false.
1904
58de37c5
PH
1905PH/44 Wrote a long comment about why errors_to addresses are verified as
1906 recipients, not senders.
1907
261cf466
TF
1908TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1909 the ratelimit ACL was added.
1910
3ee512ff
PH
1911PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1912
e08c430f
PH
1913PH/46 Added extra information about PostgreSQL errors to the error string.
1914
bef5a11f
PH
1915PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1916 avoiding the need to install special zones in a real server. This is
1917 backwards compatible; if it can't find the fake resolver, it drops back.
1918 Thus, both old and new test suites can be run.
1919
7546de58
TF
1920TF/02 Added util/ratelimit.pl
1921
e5d5a95f
TF
1922TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1923 clock is set back in time.
1924
2e88a017
TF
1925TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1926 Candler <B.Candler@pobox.com>.
1927
a5f65aa4
TF
1928TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1929 OK for addresses that are the result of redirections.
1930
e7726cbf
PH
1931PH/48 A number of further additions for the benefit of the new test suite,
1932 including a fake gethostbyname() that interfaces to the fake DNS resolver
1933 (see PH/47 above).
1934
a7fdad5b
TF
1935TF/06 The fix for widen_domains has also been applied to qualify_single and
1936 search_parents which are the other dnslookup options that can cause
1937 header rewrites.
1938
6af56900
PH
1939PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1940 type ("H").
1941
0925ede6
PH
1942PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1943
66afa403
TF
1944TF/07 Exim produced the error message "an SRV record indicated no SMTP
1945 service" if it encountered an MX record with an empty target hostname.
1946 The message is now "an MX or SRV record indicated no SMTP service".
1947
0154e85a
TF
1948TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1949 if the DNS of the sending site is misconfigured. This is quite a
1950 common situation. This change restores the behaviour of treating a
1951 helo verification defer as a failure.
1952
16f12c76
PH
1953PH/51 If self=fail was set on a router, the bounce message did not include the
1954 actual error message.
1955
bbe902f0 1956
e5a9dba6
PH
1957Exim version 4.52
1958-----------------
1959
1960TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1961
22c3b60b
PH
1962PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1963 command itself ended in error, the underlying message about the transport
1964 filter timeout was being overwritten with the pipe command error. Now the
1965 underlying error message should be appended to the second error message.
1966
06a9b4b5
PH
1967TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1968
c1ac6996
PH
1969PH/02 Reduce the amount of output that "make" produces by default. Full output
1970 can still be requested.
1971
9c7a242c
PH
1972PH/03 The warning log line about a condition test deferring for a "warn" verb
1973 was being output only once per connection, rather than after each
1974 occurrence (because it was using the same function as for successful
1975 "warn" verbs). This seems wrong, so I have changed it.
1976
87ba3f5f
PH
1977TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1978 it should not have, which might have caused a crash in the right
1979 circumstances, but probably never did.
1980
1981PH/04 Installed a modified version of Tony Finch's patch to make submission
1982 mode fix the return path as well as the Sender: header line, and to
1983 add a /name= option so that you can make the user's friendly name appear
1984 in the header line.
1985
29aba418
TF
1986TF/03 Added the control = fakedefer ACL modifier.
1987
fe0dab11
TF
1988TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1989 Mark Lowes for thorough testing.
870f6ba8 1990
11d337a4
TK
1991TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1992
1993TK/03 Merged latest SRS patch from Miles Wilton.
1994
415c8f3b
PH
1995PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1996 with the definition in sysexits.h (which is #included earlier).
1997 Fortunately, Exim does not actually use EX_OK. The code used to try to
1998 preserve the sysexits.h value, by assumimg that macro definitions were
1999 scanned for macro replacements. I have been disabused of this notion,
2000 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2001
958541e9
PH
2002PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2003 in the smtp transport. When a block could not be written in a single
2004 write() function, the timeout was being re-applied to each part-write.
2005 This seems wrong - if the receiver was accepting one byte at a time it
2006 would take for ever. The timeout is now adjusted when this happens. It
2007 doesn't have to be particularly precise.
2008
c206415f
TK
2009TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2010 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2011
2a4be8f9
PH
2012PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2013 without a domain if the check to <postmaster@domain> fails.
2014
1cba11c5
SC
2015SC/01 Eximstats: added -xls and the ability to specify output files
2016 (patch written by Frank Heydlauf).
2017
2018SC/02 Eximstats: use FileHandles for outputing results.
2019
2020SC/03 Eximstats: allow any combination of xls, txt, and html output.
2021
2022SC/04 Eximstats: fixed display of large numbers with -nvr option
2023
2024SC/05 Eximstats: fixed merging of reports with empty tables.
2025
2026SC/06 Eximstats: added the -include_original_destination flag
2027
2028SC/07 Eximstats: removed tabs and trailing whitespace.
2029
1005d00e
TK
2030TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2031
2032TK/06 MBOX spool code: Add real "From " MBOX separator line
2033 so the .eml file is really in mbox format (even though
2034 most programs do not really care). Patch from Alex Miller.
2035
2036TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2037 The latter is generated from $received_to and is only set if the
2038 message has one envelope recipient. SA can use these headers,
2039 obviously out-of-the-box. Patch from Alex Miller.
2040
9b4768fa
PH
2041PH/08 The ${def test on a variable was returning false if the variable's
2042 value was "0", contrary to what the specification has always said!
2043 The result should be true unless the variable is empty.
2044
2045PH/09 The syntax error of a character other than { following "${if
2046 def:variable_name" (after optional whitespace) was not being diagnosed.
2047 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2048 accidental colon was present, for example, could give incorrect results.
2049
0d7eb84a
PH
2050PH/10 Tidied the code in a number of places where the st_size field of a stat()
2051 result is used (not including appendfile, where other changes are about
2052 to be made).
2053
2054PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2055 This involved changing a lot of size variables from int to off_t. It
2056 should work with maildirs and everything.
2057
40727bee
TK
2058TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2059 spamd dying while we are connected to it.
2060
554d2369
TF
2061TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2062 <jgh@wizmail.org>
2063
1f922db1
PH
2064PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2065 function for BDB 4.3.
2066
ef213c3b
PH
2067PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2068
8ac170f3
PH
2069PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2070 the sources for PCRE have been re-arranged and more files are now
2071 involved.
2072
b1c749bb
PH
2073PH/15 The code I had for printing potentially long long variables in PH/11
2074 above was not the best (it lost precision). The length of off_t variables
2075 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2076 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2077 to be "long long int" or "long int". This is needed for the internal
2078 formatting function string_vformat().
b1c749bb 2079
4aac9b49
PH
2080PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2081 the configuration file to be ":syslog", then the script "guesses" where
2082 the logs files are, rather than using the compiled in default. In our
2083 case the guess is not the same as the compiled default, so the script
2084 suddenly stopped working when I started to use syslog. The patch checks
2085 to see if log_file_path is "". If so, it attempts to read it from exim
2086 with no configuration file to get the compiled in version, before it
2087 falls back to the previous guessing code."
2088
294520c8
TK
2089TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2090 implementing BATV in an Exim configuration. See NewStuff for the gory
2091 details.
2092
5bd022fe
PH
2093PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2094 Makefile that are specific to HP-UX.
2095
90e9ce59
PH
2096PH/18 If the "use_postmaster" option was set for a recipient callout together
2097 with the "random" option, the postmaster address was used as the MAIL
2098 FROM address for the random test, but not for the subsequent recipient
2099 test. It is now used for both.
2100
5ea81592
PH
2101PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2102 patch removes a few documentation additions to RFC 3028, because the
2103 latest draft now contains them. It adds the new en;ascii-case comparator
2104 and a new error check for 8bit text in MIME parts. Comparator and
2105 require names are now matched exactly. I enabled the subaddress
2106 extension, but it is not well tested yet (read: it works for me)."
2107
c6c2dc1d
PH
2108PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2109 rework some of the code of TK/09 above to avoid the hardwired use of
2110 "%lld" and "long long". Replaced the call to snprintf() with a call to
2111 string_vformat().
2112
fffffe4c
PH
2113PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2114 records point to non-existent hosts", "retry timeout exceeded", and
2115 "retry time not reached for any host after a long failure period".
ca02eafb 2116
9a26b6b2
PH
2117PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2118 experimental DomainKeys support:
2119
2120 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2121 (2) On an error such as an illegally used "control", the wrong name for
2122 the control was given.
2123
2124 These problems did NOT occur unless DomainKeys support was compiled.
2125
4aee0225
PH
2126PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2127
32d668a5
PH
2128PH/24 Added ${if match_ip condition.
2129
8187c3f3
PH
2130PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2131 databases so that it will be absolutely obvious if a crash occurs in the
2132 DB library. This is a regular occurrence (often caused by mis-matched
2133 db.h files).
2134
ff790e47 2135PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2136 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2137 picked up on a user's system that detects such things. There doesn't seem
2138 to be a gcc warning option for this - only an attribute that has to be
2139 put on the function's prototype. It seems that in Fedora Core 4 they have
2140 set this on a number of new functions. No doubt there will be more in due
2141 course.
ff790e47 2142
5417f6d1
PH
2143PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2144 specify a transport. However, if an address that was verified by such a
2145 router was the subject of a callout, Exim crashed because it tried to
2146 read the rcpt_include_affixes from the non-existent transport. Now it
2147 just assumes that the setting of that option is false. This bug was
2148 introduced by 4.51/PH/31.
2149
59cf8544
PH
2150PH/28 Changed -d+all to exclude +memory, because that information is very
2151 rarely of interest, but it makes the output a lot bigger. People tend to
2152 do -d+all out of habit.
2153
e7ad8a65
PH
2154PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2155 code in os-type was giving problems when libc.so lives in lib64, like on
2156 x86_64 Fedora Core.
2157
ade42478
PH
2158PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2159 aren't the modern standard, and it seems that some systems' include files
2160 don't always have them. Exim was already checking for some of the newer
2161 ones like T_AAAA, and defining it itself. I've added checks for all the
2162 record types that Exim uses.
2163
182ad5cf
PH
2164PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2165 not automatically generating a new one, as it is supposed to. This
2166 prevented TLS from working. If the file did exist, but contained invalid
2167 data, a new version was generated, as expected. It was only the case of a
2168 non-existent file that was broken.
2169
b0d9fc80
TK
2170TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2171 with a change in libdomainkeys > 0.64.
2172
2173TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2174 from DNS. If the selector record carries the flag, it now has
2175 precedence over the domain-wide flag.
2176
2177TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2178
47c7a64a
PH
2179PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2180 the use of a port name that isn't defined in /etc/services) occurred, the
2181 message was deferred as in a normal delivery, and thus remained on the
2182 spool, instead of being failed because of the mua_wrapper setting. This
2183 is now fixed, and I tidied up some of the mua_wrapper messages at the
2184 same time.
2185
a388bce4
SC
2186SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2187 the messages in a hash of arrays rather than using individual hashes.
2188 This is a bit cleaner and results in dramatic memory savings, albeit
2189 at a slight CPU cost.
2190
2191SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2192 as requested by Marc Sherman.
2193
2194SC/10 Eximstats: added histograms for user specified patterns as requested
2195 by Marc Sherman.
2196
0793e4ed
SC
2197SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2198
c58b88df
PH
2199PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2200 fopen() in the content-scanning modules that did not already have it.
2201
e7ad8a65 2202
7982096b
PH
2203Exim version 4.51
2204-----------------
2205
1a46a8c5
PH
2206TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2207 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2208
2f079f46 2209TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2210
2211TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2212
2213PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2214 to test Sieve filters that use "vacation".
2215
2216PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2217 that changes the way the GnuTLS parameters are stored in the cache file.
2218 The new format can be generated externally. For backward compatibility,
2219 if the data in the cache doesn't make sense, Exim assumes it has read an
2220 old-format file, and it generates new data and writes a new file. This
2221 means that you can't go back to an older release without removing the
2222 file.
2223
2224PH/03 A redirect router that has both "unseen" and "one_time" set does not
2225 work if there are any delivery delays because "one_time" forces the
2226 parent to be marked "delivered", so its unseen clone is never tried
2227 again. For this reason, Exim now forbids the simultaneous setting of
2228 these two options.
2229
2230PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2231 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2232 entry if you want to know the details. The fix, however, neglected to
2233 consider the case when local delivery batching is involved. The test for
2234 "previously delivered" was not happening when checking to see if an
2235 address could be batched with a previous (undelivered) one; under
2236 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2237 address.
1a46a8c5
PH
2238
2239PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2240 in its include files, and this causes problems building Exim.
2241
2242PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2243 header_syntax) but Exim was just ignoring anything given after a slash.
2244 In particular, this caused confusion with an attempt to use "verify =
2245 reverse_host_lookup/defer_ok". An error is now given when options are
2246 supplied for verify items that do not have them. (Maybe reverse_host_
2247 lookup should have a defer_ok option, but that's a different point.)
2248
2249PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2250 defined by RFC 821) to 2048, because there were problems with some AUTH
2251 commands, and RFC 1869 says the size should be increased for extended
2252 SMTP commands that take arguments.
2253
2254PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2255 Finch).
2256
2257PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2258 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2259
49c2d5ea
PH
2260PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2261 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2262 whatever). Otherwise the password may appear in the log. Following change
2263 PH/42 below, there is no longer a chance of it appearing in a bounce
2264 message.
49c2d5ea 2265
bf759a8b
PH
2266PH/11 Installed exipick version 20050225.0 from John Jetmore.
2267
83364d30
PH
2268PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2269 of its addresses was ever tried. (Bugzilla bug #2.)
2270
7999bbd7
PH
2271PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2272 the result incorrectly in the debug output. (It correctly added a newline
2273 to what was transported.)
2274
7dbf77c9
PH
2275TF/01 Added $received_time.
2276
74e0617f
PH
2277PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2278 commented out examples of how to interface to a virus scanner and to
2279 SpamAssassin. Also added commented examples of av_scanner and
2280 spamd_address settings.
2281
2f079f46
PH
2282PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2283 and controls are allowed in which ACLs. There were a couple of minor
2284 errors. Some of the entries in the conditions table (which is a table of
2285 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2286 negation of where the condition IS allowed.
2287
8c841523
PH
2288PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2289
7766a4f0
PH
2290PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2291 header file does not have a version number, so I've had to invent a new
2292 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2293 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2294 radiusclient), but it was contributed by a Radius user.
2295
8b417f2c
PH
2296PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2297 files or directories, for OpenSSL.
2298
901f42cb
PH
2299PH/19 When an Exim process that is running as root has to create an Exim log
2300 file, it does so in a subprocess that runs as exim:exim so as to get the
2301 ownership right at creation (otherwise, other Exim processes might see
2302 the file with the wrong ownership). There was no test for failure of this
2303 fork() call, which would lead to the process getting stuck as it waited
2304 for a non-existent subprocess. Forks do occasionally fail when resources
2305 run out. I reviewed all the other calls to fork(); they all seem to check
2306 for failure.
2307
f9b9210e
PH
2308PH/20 When checking for unexpected SMTP input at connect time (before writing
2309 the banner), Exim was not dealing correctly with a non-positive return
2310 from the read() function. If the client had disconnected by this time,
2311 the result was a log entry for a synchronization error with an empty
2312 string after "input=" when read() returned zero. If read() returned -1
2313 (an event I could not check), uninitialized data bytes were printed.
2314 There were reports of junk text (parts of files, etc) appearing after
2315 "input=".
2316
54cdb463
PH
2317PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2318
cf00dad6
PH
2319PH/22 Added support for macro redefinition, and (re)definition in between
2320 driver and ACL definitions.
2321
acb1b346
PH
2322PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2323 forgetting to use the resulting value; it was using the unexpanded value.
2324
c5ddb310
PH
2325PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2326 hadn't been configured. The fix is from Juergen Kreileder, who
2327 understands it better than I do:
2328
2329 "Here's what I see happening with three configured cyrus_sasl
2330 authenticators configured (plain, login, cram-md5):
2331
2332 On startup auth_cyrus_sasl_init() gets called for each of these.
2333 This means three calls to sasl_listmech() without a specified mech_list.
2334 => SASL tests which mechs of all available mechs actually work
2335 => three warnings about OTP not working
2336 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2337
2338 With the patch, sasl_listmech() also gets called three times. But now
2339 SASL's mech_list option is set to the server_mech specified in the the
2340 authenticator. Or in other words, the answer from sasl_listmech()
2341 gets limited to just the mech you're testing for (which is different
2342 for each call.)
2343 => the return list contains just 'plain' or 'login', 'cram-md5' or
2344 nothing depending on the value of ob->server_mech.
2345
2346 I've just tested the patch: Authentication still works fine,
2347 unavailable mechs specified in the exim configuration are still
2348 caught, and the auth.log warnings about OTP are gone."
2349
31619da6
PH
2350PH/25 When debugging is enabled, the contents of the command line are added
2351 to the debugging output, even when log_selector=+arguments is not
2352 specified.
2353
bebaf0fc
PH
2354PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2355 answer is "GNU", and only if the return is "GNU/something" is the answer
2356 "Linux".
2357
475fe28a
PH
2358PH/27 $acl_verify_message is now set immediately after the failure of a
2359 verification in an ACL, and so is available in subsequent modifiers. In
2360 particular, the message can be preserved by coding like this:
2361
2362 warn !verify = sender
2363 set acl_m0 = $acl_verify_message
2364
2365 Previously, $acl_verify_message was set only while expanding "message"
2366 and "log_message" when a very denied access.
2367
7e8bec7a
PH
2368PH/28 Modified OS/os.c-Linux with
2369
2370 -#ifndef OS_LOAD_AVERAGE
2371 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2372
2373 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2374 nomenclature these days.)
2375
e4a89c47
PH
2376PH/29 Installed patch from the Sieve maintainer that adds the options
2377 sieve_useraddress and sieve_subaddress to the redirect router.
2378
5ca2a9a1
PH
2379PH/30 In these circumstances:
2380 . Two addresses routed to the same list of hosts;
2381 . First host does not offer TLS;
2382 . First host accepts first address;
2383 . First host gives temporary error to second address;
2384 . Second host offers TLS and a TLS session is established;
2385 . Second host accepts second address.
2386 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2387 and peerdn, if requested) that were in fact used only for the second
2388 address.
7e8bec7a 2389
c688b954
PH
2390PH/31 When doing a callout as part of verifying an address, Exim was not paying
2391 attention to any local part prefix or suffix that was matched by the
2392 router that accepted the address. It now behaves in the same way as it
2393 does for delivery: the affixes are removed from the local part unless
2394 rcpt_include_affixes is set on the transport.
2395
fed77020
PH
2396PH/32 Add the sender address, as F=<...>, to the log line when logging a
2397 timeout during the DATA phase of an incoming message.
2398
7fe1560f
PH
2399PH/33 Sieve envelope tests were broken for match types other than :is. I have
2400 applied a patch sanctioned by the Sieve maintainer.
c688b954 2401
ebb6e6d5
PH
2402PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2403 the uid or gid is negative. A case of a negative gid caused this to be
2404 noticed. The fix allows for either to be negative.
2405
9c4e8f60
PH
2406PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2407 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2408 overlooked.
2409
2410PH/36 The change PH/12 above was broken. Fixed it.
2411
d7174846
PH
2412PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2413 the grounds that routing the same address twice would always produce the
2414 same answer. This might have been true once, but it is certainly no
2415 longer true now. Routing a child address may depend on the previous
2416 routing that produced that child. Some complicated redirection strategies
2417 went wrong when messages had multiple recipients, and made Exim's
2418 behaviour dependent on the order in which the addresses were given.
2419
2420 I have moved the duplicate checking until after the routing is complete.
2421 Exim scans the addresses that are assigned to local and remote
2422 transports, and removes any duplicates. This means that more work will be
2423 done, as duplicates will always all be routed, but duplicates are
2424 presumably rare, so I don't expect this is of any significance.
2425
2426 For deliveries to pipes, files, and autoreplies, the duplicate checking
2427 still happens during the routing process, since they are not going to be
2428 routed further.
2429
cfe75fc3
PH
2430PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2431 It corrects a timeout issue with spamd. This is Ian's comment: "The
2432 background is that sometimes spamd either never reads data from a
2433 connection it has accepted, or it never writes response data. The exiscan
2434 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2435 blindly assumes that writes won't block so it may never time out."
2436
be22d70e
PH
2437PH/39 Allow G after quota size as well as K and M.
2438
0612b098
PH
2439PH/40 The value set for $authenticated_id in an authenticator may not contain
2440 binary zeroes or newlines because the value is written to log lines and
2441 to spool files. There was no check on this. Now the value is run through
2442 the string_printing() function so that such characters are converted to
2443 printable escape sequences.
2444
2e0c1448
PH
2445PH/41 $message_linecount is a new variable that contains the total number of
2446 lines in the message. Compare $body_linecount, which is the count for the
2447 body only.
2448
447d236c
PH
2449PH/42 Exim no longer gives details of delivery errors for specific addresses in
2450 bounce and delay warning messages, except in certain special cases, which
2451 are as follows:
2452
2453 (a) An SMTP error message from a remote host;
2454 (b) A message specified in a :fail: redirection;
2455 (c) A message specified in a "fail" command in a system filter;
2456 (d) A message specified in a FAIL return from the queryprogram router;
2457 (e) A message specified by the cannot_route_message router option.
2458
2459 In these cases only, Exim does include the error details in bounce and
2460 warning messages. There are also a few cases where bland messages such
2461 as "unrouteable address" or "local delivery error" are given.
2462
d20976dc
PH
2463PH/43 $value is now also set for the "else" part of a ${run expansion.
2464
f656d135
PH
2465PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2466 being worked on, but at least Exim now implements the latest version to
2467 play with."
2468
2e2a30b4
PH
2469PH/45 In a pipe transport, although a timeout while waiting for the pipe
2470 process to complete was treated as a delivery failure, a timeout while
2471 writing the message to the pipe was logged, but erroneously treated as a
2472 successful delivery. Such timeouts include transport filter timeouts. For
2473 consistency with the overall process timeout, these timeouts are now
2474 treated as errors, giving rise to delivery failures by default. However,
2475 there is now a new Boolean option for the pipe transport called
2476 timeout_defer, which, if set TRUE, converts the failures into defers for
2477 both kinds of timeout. A transport filter timeout is now identified in
2478 the log output.
2479
9176e9f0
PH
2480PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2481 systems where "make" and "gmake" are different, calling "gmake" at top
2482 level broke things. I've arranged for the value of $(MAKE) to be passed
2483 from the Makefile to this script so that it can call the same version of
2484 "make".
2485
7982096b 2486
bbe902f0
PH
2487A note about Exim versions 4.44 and 4.50
2488----------------------------------------
2489
2490Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2491changes of various kinds. As a consequence, a big documentation update was
2492needed. This delayed the release for rather longer than seemed good, especially
2493in the light of a couple of (minor) security issues. Therefore, the changes
2494that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2495release. So 4.44 and 4.50 are in effect two different branches that both start
2496from 4.43.
2497
2498I have left the 4.50 change log unchanged; it contains all the changes since
24994.43. The change log for 4.44 is below; many of its items are identical to
2500those for 4.50. This seems to be the most sensible way to preserve the
2501historical information.
2502
2503
f7b63901 2504Exim version 4.50
495ae4b0
PH
2505-----------------
2506
5fe762f6
PH
2507 1. Minor wording change to the doc/README.SIEVE file.
2508
139059f6 2509 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2510 computation of the current number of files was incorrect.
495ae4b0 2511
7086e875
PH
2512 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2513 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2514 place.
2515
35af9f61
PH
2516 4. Give more explanation in the error message when the command for a transport
2517 filter fails to execute.
2518
b668c215
PH
2519 5. There are several places where Exim runs a non-Exim command in a
2520 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2521 was being done only for the command run by the queryprogram router. It is
2522 now done for all such subprocesses. The other cases are: ${run, transport
2523 filters, and the commands run by the lmtp and pipe transports.
2524
a494b1e1
PH
2525 6. Added CONFIGURE_GROUP build-time option.
2526
2527 7. Some older OS have a limit of 256 on the maximum number of file
2528 descriptors. Exim was using setrlimit() to set 1000 as a large value
2529 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2530 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2531
c5fcb476
PH
2532 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2533 was an oversight, and furthermore, ever since the addition of extra
2534 controls (e.g. 4.43/32), the checks on when to allow different forms of
2535 "control" were broken. There should now be diagnostics for all cases when a
2536 control that does not make sense is encountered.
2537
69358f02
PH
2538 9. Added the /retain_sender option to "control=submission".
2539
5be20824
PH
254010. $recipients is now available in the predata ACL (oversight).
2541
eb2c0248
PH
254211. Tidy the search cache before the fork to do a delivery from a message
2543 received from the command line. Otherwise the child will trigger a lookup
2544 failure and thereby defer the delivery if it tries to use (for example) a
2545 cached ldap connection that the parent has called unbind on.
2546
2a3eea10
PH
254712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2548 of $address_data from the recipient verification was clobbered by the
2549 sender verification.
2550
255113. The value of address_data from a sender verification is now available in
2552 $sender_address_data in subsequent conditions in the ACL statement.
2553
23c7ff99
PH
255414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2555
4deaf07d
PH
255615. Added a new option "connect=<time>" to callout options, to set a different
2557 connection timeout.
2558
926e1192
PH
255916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2560 was its contents. (It was OK if the option was not defined at all.)
2561
650edc6f
PH
256217. A "Completed" log line is now written for messages that are removed from
2563 the spool by the -Mrm option.
2564
2c7db3f5
PH
256518. New variables $sender_verify_failure and $recipient_verify_failure contain
2566 information about exactly what failed.
2567
3d235903
PH
256819. Added -dd to debug only the daemon process.
2569
7c7ad977
PH
257020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2571 handles timeouts, both on the server side and network timeouts. Renamed the
2572 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2573
981756db
PH
257421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2575 It is now set to "smtps".
2576
d4eb88df
PH
257722. $host_address is now set to the target address during the checking of
2578 ignore_target_hosts.
2579
258023. When checking ignore_target_hosts for an ipliteral router, no host name was
2581 being passed; this would have caused $sender_host_name to have been used if
2582 matching the list had actually called for a host name (not very likely,
2583 since this list is usually IP addresses). A host name is now passed as
2584 "[x.x.x.x]".
2585
7d468ab8
PH
258624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2587 code that specifies a non-restarting handler (typically sigaction() in
2588 modern systems) in an attempt to fix a rare and obscure crash bug.
2589
259025. Narrowed the window for a race in the daemon that could cause it to ignore
2591 SIGCHLD signals. This is not a major problem, because they are used only to
2592 wake it up if nothing else does.
2593
62c0818f
PH
259426. A malformed maildirsize file could cause Exim to calculate negative values
2595 for the mailbox size or file count. Odd effects could occur as a result.
2596 The maildirsize information is now recalculated if the size or filecount
2597 end up negative.
2598
26034054
PH
259927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2600 support for a long time. Removed HAVE_SYS_VFS_H.
2601
af66f652
PH
260228. Installed the latest version of exipick from John Jetmore.
2603
90af77f4
PH
260429. In an address list, if the pattern was not a regular expression, an empty
2605 subject address (from a bounce message) matched only if the pattern was an
2606 empty string. Non-empty patterns were not even tested. This was the wrong
2607 because it is perfectly reasonable to use an empty address as part of a
2608 database query. An empty address is now tested by patterns that are
2609 lookups. However, all the other forms of pattern expect the subject to
2610 contain a local part and a domain, and therefore, for them, an empty
2611 address still always fails if the pattern is not itself empty.
2612
d8ef3577
PH
261330. Exim went into a mad DNS loop when attempting to do a callout where the
2614 host was specified on an smtp transport, and looking it up yielded more
2615 than one IP address.
2616
5cb8cbc6
PH
261731. Re-factored the code for checking spool and log partition space into a
2618 function that finds that data and another that does the check. The former
2619 is then used to implement four new variables: $spool_space, $log_space,
2620 $spool_inodes, and $log_inodes.
2621
14702f5b
PH
262232. The RFC2047 encoding function was originally intended for short strings
2623 such as real names; it was not keeping to the 75-character limit for
2624 encoded words that the RFC imposes. It now respects the limit, and
2625 generates multiple encoded words if necessary. To be on the safe side, I
2626 have increased the buffer size for the ${rfc2047: expansion operator from
2627 1024 to 2048 bytes.
2628
063b1e99
PH
262933. It is now permitted to omit both strings after an "if" condition; if the
2630 condition is true, the result is "true". As before, when the second string
2631 is omitted, a false condition yields an empty string. This makes it less
2632 cumbersome to write custom ACL and router conditions.
2633
652e1b65
PH
263434. Failure to deliver a bounce message always caused it to be frozen, even if
2635 there was an errors_to setting on the router. The errors_to setting is now
2636 respected.
2637
6f0c9a4f
PH
263835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2639 canonical form (fully expanded) before being placed in
2640 $sender_host_address.
2641
33397d19
PH
264236. The table in the code that translates DNS record types into text (T_A to
2643 "A" for instance) was missing entries for NS and CNAME. It is just possible
2644 that this could have caused confusion if both these types were looked up
2645 for the same domain, because the text type is used as part of Exim's
2646 per-process caching. But the chance of anyone hitting this buglet seems
2647 very small.
2648
7bb56e1f
PH
264937. The dnsdb lookup has been extended in a number of ways.
2650
2651 (1) There is a new type, "zns", which walks up the domain tree until it
2652 finds some nameserver records. It should be used with care.
2653
ea3bc19b
PH
2654 (2) There is a new type, "mxh", which is like "mx" except that it returns
2655 just the host names, not the priorities.
2656
2657 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2658 looked up. The behaviour when one of the lookups defers can be
2659 controlled by a keyword.
7bb56e1f 2660
ea3bc19b 2661 (4) It is now possible to specify the separator character for use when
7bb56e1f 2662 multiple records are returned.
33397d19 2663
0bcb2a0e
PH
266438. The dnslists ACL condition has been extended: it is now possible to supply
2665 a list of IP addresses and/or domains to be looked up in a particular DNS
2666 domain.
2667
2ac0e484
PH
266839. Added log_selector=+queue_time_overall.
2669
4e1fde53
PH
267040. When running the queue in the test harness, wait just a tad after forking a
2671 delivery process, to get repeatability of debugging output.
2672
de365ded
PH
267341. Include certificate and key file names in error message when GnuTLS fails
2674 to set them up, because the GnuTLS error message doesn't include the name
2675 of the failing file when there is a problem reading it.
2676
f05da2e8
PH
267742. Allow both -bf and -bF in the same test run.
2678
d6453af2
PH
267943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2680
f7b63901
PH
268144. The "Exiscan patch" is now merged into the mainline Exim source.
2682
268345. Sometimes the final signoff response after QUIT could fail to get
2684 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2685 < 0 before doing a fflush(). This bug looks as though it goes back to the
2686 introduction of TLS in release 3.20, but "sometimes" must have been rare
2687 because the tests only now provoked it.
2688
a444213a
PH
268946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2690 (this can affect the format of dates).
2691
0ec020ea
PH
269247. exim_tidydb, when checking for the continued existence of a message for
2693 which it has found a message-specific retry record, was not finding
2694 messages that were in split spool directories. Consequently, it was
2695 deleting retry records that should have stayed in existence.
2696
b1206957
PH
269748. Steve fixed some bugs in eximstats.
2698
269949. The SPA authentication driver was not abandoning authentication and moving
2700 on to the next authenticator when an expansion was forced to fail,
2701 contradicting the general specification for all authenticators. Instead it
2702 was generating a temporary error. It now behaves as specified.
2703
26dd5a95
PH
270450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2705 (the order specifies the preference for clients). The order is now AES256,
2706 AES128, 3DES, ARCFOUR128.
2707
343b2385
PH
270851. Small patch to Sieve code - explicitly set From: when generating an
2709 autoreply.
2710
1c5466b9
PH
271152. Exim crashed if a remote delivery caused a very long error message to be
2712 recorded - for instance if somebody sent an entire SpamAssassin report back
2713 as a large number of 550 error lines. This bug was coincidentally fixed by
2714 increasing the size of one of Exim's internal buffers (big_buffer) that
2715 happened as part of the Exiscan merge. However, to be on the safe side, I
2716 have made the code more robust (and fixed the comments that describe what
2717 is going on).
2718
55ee9ee3
PH
271953. Now that there can be additional text after "Completed" in log lines (if
2720 the queue_time_overall log selector is set), a one-byte patch to exigrep
2721 was needed to allow it to recognize "Completed" as not the last thing in
2722 the line.
2723
d38f8232
PH
272454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2725 patch that reportedly fixes this has been added. I am not expert enough to
2726 create a test for it. This is what the patch creator wrote:
2727
2728 "I found a little strange behaviour of ldap code when working with
2729 Windows 2003 AD Domain, where users was placed in more than one
2730 Organization Units. When I tried to give exim partial DN, the exit code
2731 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2732 But simultaneously result of request was absolutely normal ldap result,
2733 so I produce this patch..."
2734
3295e65b
PH
2735 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2736 REFERENCE, so I have modified the code to exclude the patch when that macro
2737 is not defined.
2738
7102e136
PH
273955. Some experimental protocols are using DNS PTR records for new purposes. The
2740 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2741 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2742 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2743 CAN-2005-0021
7102e136 2744
3ca0ba97
PH
274556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2746
c2bcbe20
PH
274757. Double the size of the debug message buffer (to 2048) so that more of very
2748 long debug lines gets shown.
2749
18ce445d
PH
275058. The exicyclog utility now does better if the number of log files to keep
2751 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2752
1f5b4c3d
PH
275359. Two changes related to the smtp_active_hostname option:
2754
2755 (1) $smtp_active_hostname is now available as a variable.
2756 (2) The default for smtp_banner uses $smtp_active_hostname instead
2757 of $primary_hostname.
2758
b975ba52
PH
275960. The host_aton() function is supposed to be passed a string that is known
2760 to be a valid IP address. However, in the case of IPv6 addresses, it was
2761 not checking this. This is a hostage to fortune. Exim now panics and dies
2762 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2763 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2764 components; fortuitously, this particular loophole had already been fixed
2765 by change 4.50/55 above.
2766
2767 If there are any other similar loopholes, the new check in host_aton()
2768 itself should stop them being exploited. The report I received stated that
2769 data on the command line could provoke the exploit when Exim was running as
2770 exim, but did not say which command line option was involved. All I could
2771 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2772 running as the user.
ea3a6f44 2773 CAN-2005-0021
85b87bc2
PH
2774
277561. There was a buffer overflow vulnerability in the SPA authentication code
2776 (which came originally from the Samba project). I have added a test to the
2777 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2778 CAN-2005-0022
b975ba52 2779
17ffcae7
PH
278062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2781 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2782
d95f9fdb
PH
278363. The daemon start-up calls getloadavg() while still root for those OS that
2784 need the first call to be done as root, but it missed one case: when
2785 deliver_queue_load_max is set with deliver_drop_privilege. This is
2786 necessary for the benefit of the queue runner, because there is no re-exec
2787 when deliver_drop_privilege is set.
2788
86b8287f
PH
278964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2790 This has been fixed.
2791
60dc5e56
PH
279265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2793 was in use, was not putting the data itself into the right store pool;
2794 consequently, it could be overwritten for a subsequent message in the same
2795 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2796 the caching.)
2797
533244af
PH
279866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2799
a5a28604
PH
280067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2801 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2802 the function were treating the return as a boolean value, which happened to
2803 work because 0=false and not-0=true, but is not correct code.
2804
7e634d24
PH
280568. The host_aton() function was not handling scoped IPv6 addresses (those
2806 with, for example, "%eth0" on the end) correctly.
2807
3e11c26b
PH
280869. Fixed some compiler warnings in acl.c for the bitmaps specified with
2809 negated items (that is, ~something) in unsigned ints. Some compilers
2810 apparently mutter when there is no cast.
2811
6729cf78
PH
281270. If an address verification called from an ACL failed, and did not produce a
2813 user-specific message (i.e. there was only a "system" message), nothing was
2814 put in $acl_verify_message. In this situation, it now puts the system
2815 message there.
2816
00f00ca5
PH
281771. Change 4.23/11 added synchronization checking at the start of an SMTP
2818 session; change 4.31/43 added the unwanted input to the log line - except
2819 that it did not do this in the start of session case. It now does.
2820
c9bdd01c
PH
282172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2822 This is wrong and can cause the other end to generate a synchronization
2823 error if it is another Exim or anything else that does the synchronization
2824 check. A QUIT command is no longer sent after a timeout.
2825
d43194df
PH
282673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2827 during host lookups.
2828
fe5b5d0b
PH
282974. The defer_ok option of callout verification was not working if it was used
2830 when verifying addresses in header lines, that is, for this case:
2831
2832 verify = header_sender/callout=defer_ok
2833
76a2d7ba
PH
283475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2835 those file descriptors could be used for SMTP connections. If anything
2836 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2837 could be sent to the SMTP client, causing chaos. The daemon now opens
2838 stdin, stdout, and stderr to /dev/null when it puts itself into the
2839 background.
2840
284176. Arrange for output from Perl's "warn" command to be written to Exim's main
2842 log by default. The user can override this with suitable Perl magic.
2843
04f7d5b9
PH
284477. The use of log_message on a "discard" ACL verb, which is supposed to add to
2845 the log message when discard triggers, was not working for the DATA ACL or
2846 for the non-SMTP ACL.
2847
bc60667e
PH
284878. Error message wording change in sieve.c.
2849
bb6e88ff
PH
285079. If smtp_accept_max_per_host was set, the number of connections could be
2851 restricted to fewer than expected, because the daemon was trying to set up
2852 a new connection before checking whether the processes handling previous
2853 connections had finished. The check for completed processes is now done
2854 earlier. On busy systems, this bug wouldn't be noticed because something
2855 else would have woken the daemon, and it would have reaped the completed
2856 process earlier.
2857
1e70f85b
PH
285880. If a message was submitted locally by a user whose login name contained one
2859 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2860 It caused a spool format error. I have fixed the spool reading code. A
2861 related problem was that the "from" clause in the Received: line became
2862 illegal because of the space(s). It is now covered by ${quote_local_part.
2863
286481. Included the latest eximstats from Steve (adds average sizes to HTML Top
2865 tables).
2866
4e01f9d6
PH
286782. Updated OS/Makefile-AIX as per message from Mike Meredith.
2868
1ee1cef2
PH
286983. Patch from Sieve maintainer to fix unterminated string problem in
2870 "vacation" handling.
2871
6e2b4ccc
PH
287284. Some minor changes to the Linux configuration files to help with other
2873 OS variants using glibc.
2874
8e669ac1
PH
287585. One more patch for Sieve to update vacation handling to latest spec.
2876
495ae4b0 2877
bbe902f0
PH
2878----------------------------------------------------
2879See the note above about the 4.44 and 4.50 releases.
2880----------------------------------------------------
2881
2882
2883Exim version 4.44
2884-----------------
2885
2886 1. Change 4.43/35 introduced a bug that caused file counts to be
2887 incorrectly computed when quota_filecount was set in an appendfile
2888 transport
2889
2890 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2891 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2892 place.
2893
2894 3. Give more explanation in the error message when the command for a transport
2895 filter fails to execute.
2896
2897 4. There are several places where Exim runs a non-Exim command in a
2898 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2899 was being done only for the command run by the queryprogram router. It is
2900 now done for all such subprocesses. The other cases are: ${run, transport
2901 filters, and the commands run by the lmtp and pipe transports.
2902
2903 5. Some older OS have a limit of 256 on the maximum number of file
2904 descriptors. Exim was using setrlimit() to set 1000 as a large value
2905 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2906 systems. I've change it so that if it can't get 1000, it tries for 256.
2907
2908 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2909 was an oversight, and furthermore, ever since the addition of extra
2910 controls (e.g. 4.43/32), the checks on when to allow different forms of
2911 "control" were broken. There should now be diagnostics for all cases when a
2912 control that does not make sense is encountered.
2913
2914 7. $recipients is now available in the predata ACL (oversight).
2915
2916 8. Tidy the search cache before the fork to do a delivery from a message
2917 received from the command line. Otherwise the child will trigger a lookup
2918 failure and thereby defer the delivery if it tries to use (for example) a
2919 cached ldap connection that the parent has called unbind on.
2920
2921 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2922 of $address_data from the recipient verification was clobbered by the
2923 sender verification.
2924
292510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2926 was its contents. (It was OK if the option was not defined at all.)
2927
292811. A "Completed" log line is now written for messages that are removed from
2929 the spool by the -Mrm option.
2930
293112. $host_address is now set to the target address during the checking of
2932 ignore_target_hosts.
2933
293413. When checking ignore_target_hosts for an ipliteral router, no host name was
2935 being passed; this would have caused $sender_host_name to have been used if
2936 matching the list had actually called for a host name (not very likely,
2937 since this list is usually IP addresses). A host name is now passed as
2938 "[x.x.x.x]".
2939
294014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2941 code that specifies a non-restarting handler (typically sigaction() in
2942 modern systems) in an attempt to fix a rare and obscure crash bug.
2943
294415. Narrowed the window for a race in the daemon that could cause it to ignore
2945 SIGCHLD signals. This is not a major problem, because they are used only to
2946 wake it up if nothing else does.
2947
294816. A malformed maildirsize file could cause Exim to calculate negative values
2949 for the mailbox size or file count. Odd effects could occur as a result.
2950 The maildirsize information is now recalculated if the size or filecount
2951 end up negative.
2952
295317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2954 support for a long time. Removed HAVE_SYS_VFS_H.
2955
ea3a6f44 295618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2957
295819. Allow an empty sender to be matched against a lookup in an address list.
2959 Previously the only cases considered were a regular expression, or an
2960 empty pattern.
2961
296220. Exim went into a mad DNS lookup loop when doing a callout where the
2963 host was specified on the transport, if the DNS lookup yielded more than
2964 one IP address.
2965
ea3a6f44
NM
296621. The RFC2047 encoding function was originally intended for short strings
2967 such as real names; it was not keeping to the 75-character limit for
2968 encoded words that the RFC imposes. It now respects the limit, and
2969 generates multiple encoded words if necessary. To be on the safe side, I
2970 have increased the buffer size for the ${rfc2047: expansion operator from
2971 1024 to 2048 bytes.
bbe902f0 2972
ea3a6f44
NM
297322. Failure to deliver a bounce message always caused it to be frozen, even if
2974 there was an errors_to setting on the router. The errors_to setting is now
2975 respected.
bbe902f0
PH
2976
297723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2978 canonical form (fully expanded) before being placed in
2979 $sender_host_address.
2980
298124. Updated eximstats to version 1.33
2982
ea3a6f44
NM
298325. Include certificate and key file names in error message when GnuTLS fails
2984 to set them up, because the GnuTLS error message doesn't include the name
2985 of the failing file when there is a problem reading it.
bbe902f0
PH
2986
298726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2988 As per change 25.
bbe902f0 2989
ea3a6f44
NM
299027. Reset the locale to "C" after calling embedded Perl, in case it was changed
2991 (this can affect the format of dates).
bbe902f0 2992
ea3a6f44
NM
299328. exim_tidydb, when checking for the continued existence of a message for
2994 which it has found a message-specific retry record, was not finding
2995 messages that were in split spool directories. Consequently, it was
2996 deleting retry records that should have stayed in existence.
bbe902f0
PH
2997
299829. eximstats updated to version 1.35
2999 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3000 1.35 - bugfix such that pie charts by volume are generated correctly
3001
ea3a6f44
NM
300230. The SPA authentication driver was not abandoning authentication and moving
3003 on to the next authenticator when an expansion was forced to fail,
3004 contradicting the general specification for all authenticators. Instead it
3005 was generating a temporary error. It now behaves as specified.
bbe902f0 3006
ea3a6f44
NM
300731. The default ordering of permitted cipher suites for GnuTLS was pessimal
3008 (the order specifies the preference for clients). The order is now AES256,
3009 AES128, 3DES, ARCFOUR128.
bbe902f0 3010
ea3a6f44
NM
301131. Small patch to Sieve code - explicitly set From: when generating an
3012 autoreply.
bbe902f0 3013
ea3a6f44
NM
301432. Exim crashed if a remote delivery caused a very long error message to be
3015 recorded - for instance if somebody sent an entire SpamAssassin report back
3016 as a large number of 550 error lines. This bug was coincidentally fixed by
3017 increasing the size of one of Exim's internal buffers (big_buffer) that
3018 happened as part of the Exiscan merge. However, to be on the safe side, I
3019 have made the code more robust (and fixed the comments that describe what
3020 is going on).
bbe902f0 3021
ea3a6f44
NM
302233. Some experimental protocols are using DNS PTR records for new purposes. The
3023 keys for these records are domain names, not reversed IP addresses. The
3024 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3025 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3026 CAN-2005-0021
3027
ea3a6f44
NM
302834. The host_aton() function is supposed to be passed a string that is known
3029 to be a valid IP address. However, in the case of IPv6 addresses, it was
3030 not checking this. This is a hostage to fortune. Exim now panics and dies
3031 if the condition is not met. A case was found where this could be provoked
3032 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3033 components; fortuitously, this particular loophole had already been fixed
3034 by change 4.50/55 or 4.44/33 above.
3035
3036 If there are any other similar loopholes, the new check in host_aton()
3037 itself should stop them being exploited. The report I received stated that
3038 data on the command line could provoke the exploit when Exim was running as
3039 exim, but did not say which command line option was involved. All I could
3040 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3041 running as the user.
bbe902f0
PH
3042 CAN-2005-0021
3043
ea3a6f44
NM
304435. There was a buffer overflow vulnerability in the SPA authentication code
3045 (which came originally from the Samba project). I have added a test to the
3046 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3047 CAN-2005-0022
3048
ea3a6f44
NM
304936. The daemon start-up calls getloadavg() while still root for those OS that
3050 need the first call to be done as root, but it missed one case: when
3051 deliver_queue_load_max is set with deliver_drop_privilege. This is
3052 necessary for the benefit of the queue runner, because there is no re-exec
3053 when deliver_drop_privilege is set.
bbe902f0 3054
ea3a6f44
NM
305537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3056 was in use, was not putting the data itself into the right store pool;
3057 consequently, it could be overwritten for a subsequent message in the same
3058 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3059 the caching.)
bbe902f0 3060
ea3a6f44
NM
306138. Sometimes the final signoff response after QUIT could fail to get
3062 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3063 < 0 before doing a fflush(). This bug looks as though it goes back to the
3064 introduction of TLS in release 3.20, but "sometimes" must have been rare
3065 because the tests only now provoked it.
bbe902f0
PH
3066
3067
495ae4b0
PH
3068Exim version 4.43
3069-----------------
3070
3071 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3072 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3073 Now it returns an integer. A number of calls were still expecting a T/F
3074 return. Fortuitously, in all cases, the tests worked in OK situations,
3075 which is the norm. However, things would have gone wrong on any write
3076 failures on the smtp file descriptor. This function is used when sending
3077 messages over SMTP and also when doing verify callouts.
3078
3079 2. When Exim is called to do synchronous delivery of a locally submitted
3080 message (the -odf or -odi options), it no longer closes stderr before doing
3081 the delivery.
3082
3083 3. Implemented the mua_wrapper option.
3084
3085 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3086
3087 5. Implemented the functions header_remove(), header_testname(),
3088 header_add_at_position(), and receive_remove_recipient(), and exported them
3089 to local_scan().
3090
3091 6. If an ACL "warn" statement specified the addition of headers, Exim already
3092 inserted X-ACL-Warn: at the start if there was no header name. However, it
3093 was not making this test for the second and subsequent header lines if
3094 there were newlines in the string. This meant that an invalid header could
3095 be inserted if Exim was badly configured.
3096
3097 7. Allow an ACL "warn" statement to add header lines at the start or after all
3098 the Received: headers, as well as at the end.
3099
3100 8. Added the rcpt_4xx retry error code.
3101
3102 9. Added postmaster_mailfrom=xxx to callout verification option.
3103
310410. Added mailfrom=xxxx to the callout verification option, for verify=
3105 header_sender only.
3106
310711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3108 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3109
311012. Inserted some casts to stop certain compilers warning when using pointer
3111 differences as field lengths or precisions in printf-type calls (mostly
3112 affecting debugging statements).
3113
311413. Added optional readline() support for -be (dynamically loaded).
3115
311614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3117 same clock tick as a message's arrival, so that its received time was the
3118 same as the "first fail" time on the retry record, and that message
3119 remained on the queue past the ultimate address timeout, every queue runner
3120 would try a delivery (because it was past the ultimate address timeout) but
3121 after another failure, the ultimate address timeout, which should have then
3122 bounced the address, did not kick in. This was a "< instead of <=" error;
3123 in most cases the first failure would have been in the next clock tick
3124 after the received time, and all would be well.
3125
312615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3127 being recognized when the domain list was tested by the match_domain
3128 condition in an expansion string.
3129
313016. Added the ${str2b64: operator.
3131
313217. Exim was always calling setrlimit() to set a large limit for the number of
3133 processes, without checking whether the existing limit was already
3134 adequate. (It did check for the limit on file descriptors.) Furthermore,
3135 errors from getrlimit() and setrlimit() were being ignored. Now they are
3136 logged to the main and panic logs, but Exim does carry on, to try to do its
3137 job under whatever limits there are.
3138
313918. Imported PCRE 5.0.
3140
314119. Trivial typo in log message " temporarily refused connection" (the leading
3142 space).
3143
314420. If the log selector return_path_on_delivery was set and an address was
3145 redirected to /dev/null, the delivery process crashed because it assumed
3146 that a return path would always be set for a "successful" delivery. In this
3147 case, the whole delivery is bypassed as an optimization, and therefore no
3148 return path is set.
3149
315021. Internal re-arrangement: the function for sending a challenge and reading
3151 a response while authentication was assuming a zero-terminated challenge
3152 string. It's now changed to take a pointer and a length, to allow for
3153 binary data in such strings.
3154
315522. Added the cyrus_sasl authenticator (code supplied by MBM).
3156
315723. Exim was not respecting finduser_retries when seeking the login of the
3158 uid under which it was called; it was always trying 10 times. (The default
3159 setting of finduser_retries is zero.) Also, it was sleeping after the final
3160 failure, which is pointless.
3161
316224. Implemented tls_on_connect_ports.
3163
316425. Implemented acl_smtp_predata.
3165
316626. If the domain in control=submission is set empty, Exim assumes that the
3167 authenticated id is a complete email address when it generates From: or
3168 Sender: header lines.
3169
317027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3171 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3172 chown and chgrp in /bin and hostname in /usr/bin.
3173
317428. Exim was keeping the "process log" file open after each use, just as it
3175 does for the main log. This opens the possibility of it remaining open for
3176 long periods when the USR1 signal hits a daemon. Occasional processlog
3177 errors were reported, that could have been caused by this. Anyway, it seems
3178 much more sensible not to leave this file open at all, so that is what now
3179 happens.
3180
318129. The long-running daemon process does not normally write to the log once it
3182 has entered its main loop, and it closes the log before doing so. This is
3183 so that log files can straightforwardly be renamed and moved. However,
3184 there are a couple of unusual error situations where the daemon does write
3185 log entries, and I had neglected to close the log afterwards.
3186
318730. The text of an SMTP error response that was received during a remote
3188 delivery was being truncated at 512 bytes. This is too short for some of
3189 the long messages that one sometimes sees. I've increased the limit to
3190 1024.
3191
319231. It is now possible to make retry rules that apply only when a message has a
3193 specific sender, in particular, an empty sender.
3194
319532. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3196 it possible to be selective about when SMTP synchronization is enforced.
3197
319833. Added "control = caseful_local_part" and "control = "caselower_local_part".
3199
320032. Implemented hosts_connection_nolog.
3201
320233. Added an ACL for QUIT.
3203
320434. Setting "delay_warning=" to disable warnings was not working; it gave a
3205 syntax error.
3206
320735. Added mailbox_size and mailbox_filecount to appendfile.
3208
320936. Added control = no_multiline_responses to ACLs.
3210
321137. There was a bug in the logic of the code that waits for the clock to tick
3212 in the case where the clock went backwards by a substantial amount such
3213 that the microsecond fraction of "now" was more than the microsecond
3214 fraction of "then" (but the whole seconds number was less).
3215
321638. Added support for the libradius Radius client library this is found on
3217 FreeBSD (previously only the radiusclient library was supported).
3218
3219
3220Exim version 4.42
3221-----------------
3222
3223 1. When certain lookups returned multiple values in the form name=value, the
3224 quoting of the values was not always being done properly. Specifically:
3225 (a) If the value started with a double quote, but contained no whitespace,
3226 it was not quoted.
3227 (b) If the value contained whitespace other than a space character (i.e.
3228 tabs or newlines or carriage returns) it was not quoted.
3229 This fix has been applied to the mysql and pgsql lookups by writing a
3230 separate quoting function and calling it from the lookup code. The fix
3231 should probably also be applied to nisplus, ibase and oracle lookups, but
3232 since I cannot test any of those, I have not disturbed their existing code.
3233
3234 2. A hit in the callout cache for a specific address caused a log line with no
3235 reason for rejecting RCPT. Now it says "Previous (cached) callout
3236 verification failure".
3237
3238 3. There was an off-by-one bug in the queryprogram router. An over-long
3239 return line was truncated at 256 instead of 255 characters, thereby
3240 overflowing its buffer with the terminating zero. As well as fixing this, I
3241 have increased the buffer size to 1024 (and made a note to document this).
3242
3243 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3244 when Exim is waiting for an SMTP response from a remote server, Exim
3245 restarts its select() call on the socket, thereby resetting its timeout.
3246 This is not a problem when such interrupts are rare. Somebody set up a cron
3247 job to run exiwhat every 2 minutes, which is less than the normal select()
3248 timeout (5 or 10 minutes). This meant that the select() timeout never
3249 kicked in because it was always reset. I have fixed this by comparing the
3250 time when an interrupt arrives with the time at the start of the first call
3251 to select(). If more time than the timeout has elapsed, the interrupt is
3252 treated as a timeout.
3253
3254 5. Some internal re-factoring in preparation for the addition of Sieve
3255 extensions (by MH). In particular, the "personal" test is moved to a
3256 separate function, and given an option for scanning Cc: and Bcc: (which is
3257 not set for Exim filters).
3258
3259 6. When Exim created an email address using the login of the caller as the
3260 local part (e.g. when creating a From: or Sender: header line), it was not
3261 quoting the local part when it contained special characters such as @.
3262
3263 7. Installed new OpenBSD configuration files.
3264
3265 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3266 try to make them clearer.
3267
3268 9. Callout options, other than the timeout value, were being ignored when
3269 verifying sender addresses in header lines. For example, when using
3270
3271 verify = header_sender/callout=no_cache
3272
3273 the cache was (incorrectly) being used.
3274
327510. Added a missing instance of ${EXE} to the exim_install script; this affects
3276 only the Cygwin environment.
3277
327811. When return_path_on_delivery was set as a log selector, if different remote
3279 addresses in the same message used different return paths and parallel
3280 remote delivery occurred, the wrong values would sometimes be logged.
3281 (Whenever a remote delivery process finished, the return path value from
3282 the most recently started remote delivery process was logged.)
3283
328412. RFC 3848 specifies standard names for the "with" phrase in Received: header
3285 lines when AUTH and/or TLS are in use. This is the "received protocol"
3286 field. Exim used to use "asmtp" for authenticated SMTP, without any
3287 indication (in the protocol name) for TLS use. Now it follows the RFC and
3288 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3289 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3290 names appear in log lines as well as in Received: header lines.
3291
329213. Installed MH's patches for Sieve to add the "copy" and "vacation"
3293 extensions, and comparison tests, and to fix some bugs.
3294
329514. Changes to the "personal" filter test:
3296
3297 (1) The test was buggy in that it was just doing the equivalent of
3298 "contains" tests on header lines. For example, if a user's address was
3299 anne@some.where, the "personal" test would incorrectly be true for
3300
3301 To: susanne@some.where
3302
3303 This test is now done by extracting each address from the header in turn,
3304 and checking the entire address. Other tests that are part of "personal"
3305 are now done using regular expressions (for example, to check local parts
3306 of addresses in From: header lines).
3307
3308 (2) The list of non-personal local parts in From: addresses has been
3309 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3310 taken from the Sieve specification recommendations.
3311
3312 (3) If the message contains any header line starting with "List-" it is
3313 treated as non-personal.
3314
3315 (4) The test for "circular" in the Subject: header line has been removed
3316 because it now seems ill-conceived.
3317
331815. Minor typos in src/EDITME comments corrected.
3319
332016. Installed latest exipick from John Jetmore.
3321
332217. If headers_add on a router specified a text string that was too long for
3323 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3324 of string_sprintf() is now avoided.
3325
332618. $message_body_size was not set (it was always zero) when running the DATA
3327 ACL and the local_scan() function.
3328
332919. For the "mail" command in an Exim filter, no default was being set for
3330 the once_repeat time, causing a random time value to be used if "once" was
3331 specified. (If the value happened to be <= 0, no repeat happened.) The
3332 default is now 0s, meaning "never repeat". The "vacation" command was OK
3333 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3334 (I found it when inspecting the code).
3335
333620. There is now an overall timeout for performing a callout verification. It
3337 defaults to 4 times the callout timeout, which applies to individual SMTP
3338 commands during the callout. The overall timeout applies when there is more
3339 than one host that can be tried. The timeout is checked before trying the
3340 next host. This prevents very long delays if there are a large number of
3341 hosts and all are timing out (e.g. when the network connections are timing
3342 out). The value of the overall timeout can be changed by specifying an
3343 additional sub-option for "callout", called "maxwait". For example:
3344
3345 verify = sender/callout=5s,maxwait=20s
3346
334721. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3348 to the end before writing, but this should make it even safer).
3349
335022. Exim was forgetting that it had advertised PIPELINING for the second and
3351 subsequent messages on an SMTP connection. It was also not resetting its
3352 memory on STARTTLS and an internal HELO.
3353
335423. When Exim logs an SMTP synchronization error within a session, it now
3355 records whether PIPELINING has been advertised or not.
3356
335724. Added 3 instances of "(long int)" casts to time_t variables that were being
3358 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3359 rather than long int.
3360
336125. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3362
336326. Added the never_mail option to autoreply.
3364
3365
3366Exim version 4.41
3367-----------------
3368
3369 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3370 crash if the getsockname() call failed; this can happen if a connection is
3371 closed very soon after it is established. The problem was simply in the
3372 order in which certain operations were done, causing Exim to try to write
3373 to the SMTP stream before it had set up the file descriptor. The bug has
3374 been fixed by making things happen in the correct order.
3375
3376
3377Exim version 4.40
3378-----------------
3379
3380 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3381 before the connection was closed, thus losing the rejection response.
3382
3383 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3384 some early Solaris releases, but causes trouble in current releases where
3385 socklen_t is defined.
3386
3387 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3388 always exist.
3389
3390 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3391 configured.
3392
3393 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3394 that releasing the top of it at the end releases what was used for sub-
3395 expansions (unless the block got too big). However, discard this block if
3396 the first thing is a variable or header, so that we can use its block when
3397 it is dynamic (useful for very large $message_headers, for example).
3398
3399 6. Lookups now cache *every* query, not just the most recent. A new, separate
3400 store pool is used for this. It can be recovered when all lookup caches are
3401 flushed. Lookups now release memory at the end of their result strings.
3402 This has involved some general refactoring of the lookup sources.
3403
3404 7. Some code has been added to the store_xxx() functions to reduce the amount
3405 of flapping under certain conditions.
3406
3407 8. log_incoming_interface used to affect only the <= reception log lines. Now
3408 it causes the local interface and port to be added to several more SMTP log
3409 lines, for example "SMTP connection from", and rejection lines.
3410
3411 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3412
341310. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3414
341511. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3416 could be overwritten at the end of the current message (or the start of a
3417 new message if it was set in a HELO ACL). The value is now preserved for
3418 the duration of the SMTP connection.
3419
342012. If a transport had a headers_rewrite setting, and a matching header line
3421 contained an unqualified address, that address was qualified, even if it
3422 did not match any rewriting rules. The underlying bug was that the values
3423 of the flags that permit the existence of unqualified sender and recipient
3424 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3425 non-local messages, and by -bnq for local messages) were not being
3426 preserved with the message after it was received.
3427
342813. When Exim was logging an SMTP synchronization error, it could sometimes log
3429 "next input=" as part of the text comprising the host identity instead of
3430 the correct text. The code was using the same buffer for two different
3431 strings. However, depending on which order the printing function evaluated
3432 its arguments, the bug did not always show up. Under Linux, for example, my
3433 test suite worked just fine.
3434
343514. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3436 doesn't work with some older versions of Perl. It has been changed to "my",
3437 which in any case is probably the better facility to use.
3438
343915. A really picky compiler found some instances of statements for creating
3440 error messages that either had too many or two few arguments for the format
3441 string.
3442
344316. The size of the buffer for calls to the DNS resolver has been increased
3444 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3445 for addresses that have a lot of PTR records. This alleviates a problem; it
3446 does not fully solve it.
3447
344817. A dnsdb lookup for PTR records that receives more data than will fit in the
3449 buffer now truncates the list and logs the incident, which is the same
3450 action as happens when Exim is looking up a host name and its aliases.
3451 Previously in this situation something unpredictable would happen;
3452 sometimes it was "internal error: store_reset failed".
3453
345418. If a server dropped the connection unexpectedly when an Exim client was
3455 using GnuTLS and trying to read a response, the client delivery process
3456 crashed while trying to generate an error log message.
3457
345819. If a "warn" verb in an ACL added multiple headers to a message in a single
3459 string, for example:
3460
3461 warn message = H1: something\nH2: something
3462
3463 the text was added as a single header line from Exim's point of view
3464 though it ended up OK in the delivered message. However, searching for the
3465 second and subsequent header lines using $h_h2: did not work. This has been
3466 fixed. Similarly, if a system filter added multiple headers in this way,
3467 the routers could not see them.
3468
346920. Expanded the error message when iplsearch is called with an invalid key to
3470 suggest using net-iplsearch in a host list.
3471
347221. When running tests using -bh, any delays imposed by "delay" modifiers in
3473 ACLs are no longer actually imposed (and a message to that effect is
3474 output).
3475
347622. If a "gecos" field in a passwd entry contained escaped characters, in
3477 particular, if it contained a \" sequence, Exim got it wrong when building
3478 a From: or a Sender: header from that name. A second bug also caused
3479 incorrect handling when an unquoted " was present following a character
3480 that needed quoting.
3481
348223. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3483 was not being matched caselessly.
3484
348524. Arranged for all hyphens in the exim.8 source to be escaped with
3486 backslashes.
3487
348825. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3489 properly. Recipient callout cache records were still being keyed to include
3490 the sender, even when use_sender was set false. This led to far more
3491 callouts that were necessary. The sender is no longer included in the key
3492 when use_sender is false.
3493
349426. Added "control = su