iaddressing bug 966 and my own concerns, stop sending non-panic error to panic log...
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
ec5a0394 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.631 2010/06/09 01:30:16 pdp Exp $
495ae4b0
PH
2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
97fd1e48 6Exim version 4.73
ed7f7860 7-----------------
97fd1e48
PP
8
9PP/01 Date: & Message-Id: revert to normally being appended to a message,
10 only prepend for the Resent-* case. Fixes regression introduced in
11 Exim 4.70 by NM/22 for Bugzilla 607.
12
6901c596
PP
13PP/02 Include check_rfc2047_length in configure.default because we're seeing
14 increasing numbers of administrators be bitten by this.
15
a8c8d6b5
JJ
16JJ/01 Added DISABLE_DKIM and comment to src/EDITME
17
77bb000f
PP
18PP/03 Bugzilla 994: added openssl_options main configuration option.
19
a29e5231
PP
20PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
21
ec5a0394 22PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 23
55c75993
PP
24PP/06 Adjust NTLM authentication to handle SASL Initial Response.
25
453a6645 26PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
27 without a peer certificate, leading to a segfault because of an
28 assumption that peers always have certificates. Be a little more
453a6645
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29 paranoid. Problem reported by Martin Tscholak.
30
8544e77a
PP
31PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
32 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
33 NB: ClamAV planning to remove STREAM in "middle of 2010".
34
83e029d5
PP
35PP/09 Implemented reverse_ip expansion operator.
36
ed7f7860
PP
37PP/10 Bugzilla 937: provide a "debug" ACL control.
38
7d9f747b
PP
39PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
40
4b2241d2
PP
41PP/12 Bugzilla 973: Implement --version.
42
10385c15
PP
43PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
44
dbc4b90d
PP
45PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
46
532be449
PP
47PP/15 Bugzilla 816: support multiple condition rules on Routers.
48
6a8de854 49PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
50 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
51 ignore trailing whitespace.
6a8de854 52
55c75993 53
465e92cf
JJ
54Exim version 4.72
55-----------------
56
453a6645
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57JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
58 $data_path, and $header_path variables; fixed documentation bugs and
59 typos
465e92cf 60
453a6645
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61JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
62 exipick to access non-standard spools, including the "frozen" queue
63 (Finput)
edae0343 64
9bd3e22c
NM
65NM/01 Bugzilla 965: Support mysql stored procedures.
66 Patch from Alain Williams
67
bb576ff7
NM
68NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
69
5a1a5845
NM
70NM/03 Bugzilla 955: Documentation fix for max_rcpts.
71 Patch from Andreas Metzler
72
981a9fad
NM
73NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
74 Patch from Kirill Miazine
75
7fc497ee
NM
76NM/05 Bugzilla 671: Added umask to procmail example.
77
1a41defa
JJ
78JJ/03 installed exipick 20100323.0, fixing doc bug
79
a466095c 80NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 81 directory. Notification and patch from Dan Rosenberg.
a466095c 82
94a6bd0b
NM
83TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
84
85TK/02 Improve log output when DKIM signing operation fails.
86
87MH/01 Treat the transport option dkim_domain as a colon separated
88 list, not as a single string, and sign the message with each element,
89 omitting multiple occurences of the same signer.
90
c1b141a8
NM
91NM/07 Null terminate DKIM strings, Null initialise DKIM variable
92 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 93
b26eacf1 94NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
95 Patch by Simon Arlott
96
179c5980 97PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 98 MBX locking. Notification from Dan Rosenberg.
179c5980 99
9bd3e22c 100
7c6d71af
NM
101Exim version 4.71
102-----------------
103
7d9f747b 104TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 105
f013fb92
NM
106NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
107
0eb8eedd
NM
108NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
109
663ee6d9
NM
110NM/03 Bugzilla 847: Enable DNSDB lookup by default.
111
177ebd9b
NM
112NM/04 Bugzilla 915: Flag broken perl installation during build.
113
7c6d71af 114
210f147e
NM
115Exim version 4.70
116-----------------
117
cdd3bb85 118TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 119 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
120
121TK/02 Write list of recipients to X-Envelope-Sender header when building
122 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 123 Hirsch).
cdd3bb85
TK
124
125TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
126 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 127 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
128
129TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
130 by Mark Daniel Reidel <mr@df.eu>.
131
210f147e
NM
132NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
133 When building exim an external PCRE library is now needed -
134 PCRE is a system library on the majority of modern systems.
135 See entry on PCRE_LIBS in EDITME file.
136
deafd5b3
NM
137NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
138 conversation. Added nologin parameter to request.
7d9f747b 139 Patch contributed by Kirill Miazine.
deafd5b3 140
089793a4
TF
141TF/01 Do not log submission mode rewrites if they do not change the address.
142
5f16ca82
TF
143TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
144
dae9d94e 145NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 146 log files in place. Contributed by Roberto Lima.
dae9d94e 147
7d9f747b 148NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 149
06864c44
TF
150TF/03 Bugzilla 615: When checking the local_parts router precondition
151 after a local_part_suffix or local_part_prefix option, Exim now
152 does not use the address's named list lookup cache, since this
153 contains cached lookups for the whole local part.
154
65a7d8c3 155NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 156 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 157
23510047 158TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 159
7d9f747b 160NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 161
7d8eec3a 162NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 163 Patch provided by Jan Srzednicki.
6c588e74 164
89dec7b6
TF
165TF/05 Leading white space used to be stripped from $spam_report which
166 wrecked the formatting. Now it is preserved.
5f28a6e8 167
a99de90c
TF
168TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
169 that they are available at delivery time.
170
e2803e40
TF
171TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
172
7199e1ee
TF
173TF/08 TLS error reporting now respects the incoming_interface and
174 incoming_port log selectors.
175
e276e04b
TF
176TF/09 Produce a more useful error message if an SMTP transport's hosts
177 setting expands to an empty string.
178
ce552449 179NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 180 Patch provided by Phil Pennock.
ce552449 181
e765a0f1 182NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 183 Patch provided by Richard Godbee.
e765a0f1 184
4f054c63 185NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 186 acl_smtp_notquit, added index entry.
4f054c63 187
7d9f747b
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188NM/09 Bugzilla 787: Potential buffer overflow in string_format.
189 Patch provided by Eugene Bujak.
24c929a2 190
7d9f747b
PP
191NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
192 accept(). Patch provided by Maxim Dounin.
cf73943b 193
b52bc06e 194NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 195 Patch provided by Phil Pennock.
b52bc06e 196
447de4b0
NM
197NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
198
4c69d561 199NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 200 Patch provided by Brad "anomie" Jorsch.
4c69d561 201
d5c39246 202NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 203 Patch provided by Dean Brooks.
9b989985 204
0b23848a
TK
205TK/05 Add native DKIM support (does not depend on external libraries).
206
8f3414a1 207NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 208 Patch provided by Graeme Fowler.
e2aacdfd 209
fb6f955d
NM
210NM/16 Bugzilla 851: Documentation example syntax fix.
211
212NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 213
7d9f747b
PP
214NM/18 Bugzilla 894: Fix issue with very long lines including comments in
215 lsearch.
dbb0bf41 216
7d9f747b
PP
217NM/19 Bugzilla 745: TLS version reporting.
218 Patch provided by Phil Pennock.
f3766eb5 219
7d9f747b
PP
220NM/20 Bugzilla 167: bool: condition support.
221 Patch provided by Phil Pennock.
36f12725 222
7d9f747b
PP
223NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
224 clients. Patch provided by Phil Pennock.
e6060e2c 225
7d9f747b
PP
226NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
227 Patch provided by Brad "anomie" Jorsch.
5eb690a1 228
7d9f747b
PP
229NM/23 Bugzilla 687: Fix misparses in eximstats.
230 Patch provided by Heiko Schlittermann.
d5c13d66 231
7d9f747b
PP
232NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
233 Patch provided by Heiko Schlittermann.
b2335c0b 234
7d9f747b 235NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 236 plus update to original patch.
f4cd9433 237
7d9f747b 238NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 239
7d9f747b
PP
240NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
241 Patch provided by David Brownlee.
8dc71ab3 242
7d9f747b 243NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 244
7d9f747b 245NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 246
7d9f747b 247NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 248
7d9f747b 249NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 250
17792b53 251NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 252 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 253
7d9f747b
PP
254NM/33 Bugzilla 898: Transport filter timeout fix.
255 Patch by Todd Rinaldo.
52383f8f 256
7d9f747b
PP
257NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
258 Patch by Serge Demonchaux.
5ca6d115 259
7d9f747b
PP
260NM/35 Bugzilla 39: Base64 decode bug fixes.
261 Patch by Jakob Hirsch.
baee9eee 262
7d9f747b 263NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 264
7d9f747b 265NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 266
7d9f747b 267NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 268
7d9f747b 269NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 270
deafd5b3 271
47db1125
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272Exim version 4.69
273-----------------
274
4b3504d0
TK
275TK/01 Add preliminary DKIM support. Currently requires a forked version of
276 ALT-N's libdkim that I have put here:
277 http://duncanthrax.net/exim-experimental/
278
279 Note to Michael Haardt: I had to rename some vars in sieve.c. They
280 were called 'true' and it seems that C99 defines that as a reserved
281 keyword to be used with 'bool' variable types. That means you could
282 not include C99-style headers which use bools without triggering
283 build errors in sieve.c.
284
81ea09ca
NM
285NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
286 as mailq or other aliases. Changed the --help handling significantly
287 to do whats expected. exim_usage() emits usage/help information.
288
f13cddcb
SC
289SC/01 Added the -bylocaldomain option to eximstats.
290
7d9f747b 291NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 292
7d9f747b 293NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 294
7d9f747b 295NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
296
297
eb4c0de6
PH
298Exim version 4.68
299-----------------
300
301PH/01 Another patch from the Sieve maintainer.
302
6a3bceb1
PH
303PH/02 When an IPv6 address is converted to a string for single-key lookup
304 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
305 dots are used instead of colons so that keys in lsearch files need not
306 contain colons. This was done some time before quoting was made available
307 in lsearch files. However, iplsearch files do require colons in IPv6 keys
308 (notated using the quote facility) so as to distinguish them from IPv4
309 keys. This meant that lookups for IP addresses in host lists did not work
310 for iplsearch lookups.
311
312 This has been fixed by arranging for IPv6 addresses to be expressed with
313 colons if the lookup type is iplsearch. This is not incompatible, because
314 previously such lookups could never work.
315
316 The situation is now rather anomolous, since one *can* have colons in
317 ordinary lsearch keys. However, making the change in all cases is
318 incompatible and would probably break a number of configurations.
319
2e30fa9d
TK
320TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
321 version.
322
0806a9c5
MH
323MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
324 conversion specification without a maximum field width, thereby enabling
325 a rogue spamd server to cause a buffer overflow. While nobody in their
326 right mind would setup Exim to query an untrusted spamd server, an
327 attacker that gains access to a server running spamd could potentially
328 exploit this vulnerability to run arbitrary code as the Exim user.
329
ae276964
TK
330TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
331 $primary_hostname instead of what libspf2 thinks the hosts name is.
332
0f2cbd1b
MH
333MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
334 a directory entry by the name of the lookup key. Previously, if a
335 symlink pointed to a non-existing file or a file in a directory that
336 Exim lacked permissions to read, a lookup for a key matching that
337 symlink would fail. Now it is enough that a matching directory entry
338 exists, symlink or not. (Bugzilla 503.)
339
2b85bce7
PH
340PH/03 The body_linecount and body_zerocount variables are now exported in the
341 local_scan API.
342
93655c46
PH
343PH/04 Added the $dnslist_matched variable.
344
6c512171
PH
345PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
346 This means they are set thereafter only if the connection becomes
347 encrypted.
348
349PH/06 Added the client_condition to authenticators so that some can be skipped
350 by clients under certain conditions.
351
aa6dc513
PH
352PH/07 The error message for a badly-placed control=no_multiline_responses left
353 "_responses" off the end of the name.
354
a96603a0
PH
355PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
356
8f240103
PH
357PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
358 (without spaces) instead of just copying the configuration text.
359
360PH/10 Added the /noupdate option to the ratelimit ACL condition.
361
d677b2f2
PH
362PH/11 Added $max_received_linelength.
363
d52120f2
PH
364PH/12 Added +ignore_defer and +include_defer to host lists.
365
64f2600a
PH
366PH/13 Installed PCRE version 7.2. This needed some changes because of the new
367 way in which PCRE > 7.0 is built.
368
8669f003
PH
369PH/14 Implemented queue_only_load_latch.
370
a4dc33a8
PH
371PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
372 MAIL command. The effect was to mangle the value on 64-bit systems.
373
d6a60c0f
PH
374PH/16 Another patch from the Sieve maintainer.
375
8f128379
PH
376PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
377
8932dffe
PH
378PH/18 If a system quota error occurred while trying to create the file for
379 a maildir delivery, the message "Mailbox is full" was not appended to the
380 bounce if the delivery eventually timed out. Change 4.67/27 below applied
381 only to a quota excession during the actual writing of the file.
d6a60c0f 382
ddea74fa 383PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
384 characters?) which causes problems in log lines. The DN values are now
385 passed through string_printing() before being added to log lines.
386
ddea74fa 387PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
388 and InterBase are left for another time.)
389
ddea74fa
PH
390PH/21 Added message_body_newlines option.
391
ce9f225c
PH
392PH/22 Guard against possible overflow in moan_check_errorcopy().
393
19897d52
PH
394PH/23 POSIX allows open() to be a macro; guard against that.
395
bc64a74d
PH
396PH/24 If the recipient of an error message contained an @ in the local part
397 (suitably quoted, of course), incorrect values were put in $domain and
398 $local_part during the evaluation of errors_copy.
399
eb4c0de6 400
b4ed4da0
PH
401Exim version 4.67
402-----------------
403
22ad45c9
MH
404MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
405 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
406 Jan Srzednicki.
407
b4ed4da0
PH
408PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
409 issue a MAIL command.
410
431b7361
PH
411PH/02 In an ACL statement such as
412
413 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
414
415 if a client was not listed at all, or was listed with a value other than
416 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
417 the condition was not true (as it should be), so access was not denied.
418 The bug was that the ! inversion was incorrectly passed on to the second
419 item. This has been fixed.
420
421PH/03 Added additional dnslists conditions == and =& which are different from
422 = and & when the dns lookup returns more than one IP address.
423
83da1223
PH
424PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
425 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
426
54fc8428
PH
427PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
428 FSYNC, which compiles an option called disable_fsync that allows for
429 bypassing fsync(). The documentation is heavily laced with warnings.
430
34c5e8dd
SC
431SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
432
bbe15da8
PH
433PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
434 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
435 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
436 including adding "make clean"; (3) Added -fPIC when compiling the test
437 dynamically loaded module, to get rid of a warning.
438
0e8a9471
MH
439MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
440 message fails, move_frozen_messages = true and ignore_bounce_errors_after
441 = 0s. The bug is otherwise harmless.
442
f0872424
PH
443PH/07 There was a bug in the dovecot authenticator such that the value of
444 $auth1 could be overwritten, and so not correctly preserved, after a
445 successful authentication. This usually meant that the value preserved by
446 the server_setid option was incorrect.
447
b01dd148
PH
448PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
449
6bf342e1
PH
450PH/09 Installed PCRE release 7.0.
451
273f34d0
PH
452PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
453 run for batched SMTP input. It is now run at the start of every message
454 in the batch. While fixing this I discovered that the process information
455 (output by running exiwhat) was not always getting set for -bs and -bS
456 input. This is fixed, and it now also says "batched" for BSMTP.
457
cf8b11a5
PH
458PH/11 Added control=no_pipelining.
459
41c7c167
PH
460PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
461 patch, slightly modified), and move the expansion of helo_data till after
462 the connection is made in the smtp transport (so it can use these
463 values).
464
9c57cbc0
PH
465PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
466
f3f065bb
PH
467PH/14 Added log_selector = +pid.
468
047bdd8c
PH
469PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
470
0ce9abe6
PH
471PH/16 Add ${if forany and ${if forall.
472
0e22dfd1
PH
473PH/17 Added dsn_from option to vary the From: line in DSNs.
474
4c590bd1
PH
475PH/18 Flush SMTP output before performing a callout, unless control =
476 no_callout_flush is set.
477
09945f1e
PH
478PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
479 was true (the default) a successful delivery failed to delete the retry
480 item, thus causing premature timeout of the address. The bug is now
481 fixed.
482
c51b8e75
PH
483PH/20 Added hosts_avoid_pipelining to the smtp transport.
484
e28326d8
PH
485PH/21 Long custom messages for fakedefer and fakereject are now split up
486 into multiline reponses in the same way that messages for "deny" and
487 other ACL rejections are.
488
75b1493f
PH
489PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
490 with slight modification.
491
7c5214ec
PH
492PH/23 Applied sieve patches from the maintainer "tracking the latest notify
493 draft, changing the syntax and factoring some duplicate code".
494
4311097e
PH
495PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
496 for deliveries of the second and subsequent messages over the same SMTP
497 connection.
498
29f89cad
PH
499PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
500 ${reduce, with only minor "tidies".
501
5e687460
SC
502SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
503
c3611384
PH
504PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
505 expansion side effects.
506
5a11a7b4
PH
507PH/27 When a message times out after an over-quota error from an Exim-imposed
508 quota, the bounce message says "mailbox is full". This message was not
509 being given when it was a system quota that was exceeded. It now should
510 be the same.
511
0e20aff9
MH
512MH/03 Made $recipients available in local_scan(). local_scan() already has
513 better access to the recipient list through recipients_list[], but
514 $recipients can be useful in postmaster-provided expansion strings.
515
ca86f471
PH
516PH/28 The $smtp_command and $smtp_command_argument variables were not correct
517 in the case of a MAIL command with additional options following the
518 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
519 were accidentally chopped off.
520
a14e5636
PH
521PH/29 SMTP synchronization checks are implemented when a command is read -
522 there is a check that no more input is waiting when there shouldn't be
523 any. However, for some commands, a delay in an ACL can mean that it is
524 some time before the response is written. In this time, more input might
525 arrive, invalidly. So now there are extra checks after an ACL has run for
526 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
527 pipelining has not been advertised.
528
ec95d1a6
PH
529PH/30 MH's patch to allow iscntrl() characters to be list separators.
530
42855d71
PH
531PH/31 Unlike :fail:, a custom message specified with :defer: was not being
532 returned in the SMTP response when smtp_return_error_details was false.
533 This has been fixed.
534
57c2c631
PH
535PH/32 Change the Dovecot authenticator to use read() and write() on the socket
536 instead of the C I/O that was originally supplied, because problems were
537 reported on Solaris.
538
58c01c94
PH
539PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
540 Exim which did not show up earlier: it was assuming that a call to
541 SSL_CTX_set_info_callback() might give an error value. In fact, there is
542 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
543 was a macro that became an assignment, so it seemed to work. This has
544 changed to a proper function call with a void return, hence the compile
545 error. Exim's code has been fixed.
546
dee5a20a
PH
547PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
548 cpus.
549
d2ee6114
PH
550PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
551
b2d5182b
PH
552PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
553
79749a79
PH
554PH/37 If a message is not accepted after it has had an id assigned (e.g.
555 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
556 "Completed" line in the log. When some messages of this type were
557 selected by exigrep, they were listed as "not completed". Others were
558 picked up by some special patterns. I have improved the selection
559 criteria to be more general.
79749a79 560
c456d9bb
PH
561PH/38 The host_find_failed option in the manualroute router can now be set
562 to "ignore", to completely ignore a host whose IP address cannot be
563 found. If all hosts are ignored, the behaviour is controlled by the new
564 host_all_ignored option.
565
cd9868ec
PH
566PH/39 In a list of hosts for manualroute, if one item (either because of multi-
567 homing or because of multiple MX records with /mx) generated more than
568 one IP address, and the following item turned out to be the local host,
569 all the secondary addresses of the first item were incorrectly removed
570 from the list, along with the local host and any following hosts (which
571 is what is supposed to happen).
572
ebeaf996
PH
573PH/40 When Exim receives a message, it writes the login name, uid, and gid of
574 whoever called Exim into the -H file. In the case of the daemon it was
575 behaving confusingly. When first started, it used values for whoever
576 started the daemon, but after a SIGHUP it used the Exim user (because it
577 calls itself on a restart). I have changed the code so that it now always
578 uses the Exim user.
579
2679d413
PH
580PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
581 message are rejected with the same error (e.g. no authentication or bad
582 sender address), and a DATA command is nevertheless sent (as can happen
583 with PIPELINING or a stupid MUA), the error message that was given to the
584 RCPT commands is included in the rejection of the DATA command. This is
585 intended to be helpful for MUAs that show only the final error to their
586 users.
587
84024b72
PH
588PH/42 Another patch from the Sieve maintainer.
589
8005d38e
SC
590SC/02 Eximstats - Differentiate between permanent and temporary rejects.
591 Eximstats - Fixed some broken HTML links and added missing column headers
592 (Jez Hancock).
593 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
594 columns for Rejects, Temp Rejects, Ham, and Spam rows.
595
3298c6c6
SC
596SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
597
a43a27c5
PH
598PH/43 Yet another patch from the Sieve maintainer.
599
58eb016e 600PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
601 the response to the final '.' that terminates a message, but only in the
602 case where the client has not sent further data following the '.'
603 (unfortunately, this is allowed). However, in many cases there won't be
604 any further data because there won't be any more messages to send. A call
605 to select() can be used: if it shows that the input is "ready", there is
606 either input waiting, or the socket has been closed. An attempt to read
607 the next input character can distinguish the two cases. Previously, Exim
58eb016e 608 would have sent an OK response which the client would never have see.
563b63fa
PH
609 This could lead to message repetition. This fix should cure that, at
610 least in a lot of common cases.
58eb016e 611
b43a74ea
PH
612PH/45 Do not advertise STARTTLS in response to HELP unless it would be
613 advertised in response to EHLO.
614
b4ed4da0 615
5dd1517f
PH
616Exim version 4.66
617-----------------
618
619PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
620 fixed by 4.65/MH/01 (is this a record?) are fixed:
621
622 (i) An empty string was always treated as zero by the numeric comparison
623 operators. This behaviour has been restored.
624
625 (ii) It is documented that the numeric comparison operators always treat
626 their arguments as decimal numbers. This was broken in that numbers
627 starting with 0 were being interpreted as octal.
628
629 While fixing these problems I realized that there was another issue that
630 hadn't been noticed. Values of message_size_limit (both the global option
631 and the transport option) were treated as octal if they started with 0.
632 The documentation was vague. These values are now always treated as
633 decimal, and I will make that clear in the documentation.
634
635
93cfa765
TK
636Exim version 4.65
637-----------------
638
639TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
640 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
641 versions. (#438)
642
d6066548
MH
643MH/01 Don't check that the operands of numeric comparison operators are
644 integers when their expansion is in "skipping" mode (fixes bug
645 introduced by 4.64-PH/07).
646
4362ff0d
PH
647PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
648 child addresses, Exim now panics and dies. Previously, because the count
649 is held in a short int, deliveries were likely to be lost. As such a
650 large number of recipients for a single message is ridiculous
651 (performance will be very, very poor), I have chosen to impose a limit
652 rather than extend the field.
653
93cfa765 654
944e9e9c
TF
655Exim version 4.64
656-----------------
aa41d2de 657
21d74bd9
TK
658TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
659 leftover -K file (the existence of which was triggered by #402).
660 While we were at it, introduced process PID as part of the -K
661 filename. This should rule out race conditions when creating
662 these files.
663
664TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
665 processing considerably. Previous code took too long for large mails,
666 triggering a timeout which in turn triggers #401.
667
668TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
669 in the DK code in transports.c. sendfile() is not really portable,
670 hence the _LINUX specificness.
944e9e9c
TF
671
672TF/01 In the add_headers option to the mail command in an Exim filter,
673 there was a bug that Exim would claim a syntax error in any
674 header after the first one which had an odd number of characters
675 in the field name.
676
2b1c6e3a
PH
677PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
678 callout verification, Exim cached a "reject" for the entire domain. This
679 is correct for most verifications, but it is not correct for a recipient
680 verification with use_sender or use_postmaster set, because in that case
681 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
682 case of MAIL FROM:<> rejection from other early rejections (e.g.
683 rejection of HELO). When verifying a recipient using a non-null MAIL
684 address, the cache is ignored if it shows MAIL FROM:<> rejection.
685 Whatever the result of the callout, the value of the domain cache is
686 left unchanged (for any other kind of callout, getting as far as trying
687 RCPT means that the domain itself is ok).
688
1f872c80
PH
689PH/02 Tidied a number of unused variable and signed/unsigned warnings that
690 gcc 4.1.1 threw up.
691
692PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
693 manifest itself as EPIPE rather than ECONNECT. When tidying away a
694 session, the daemon ignores ECONNECT errors and logs others; it now
695 ignores EPIPE as well.
696
d203e649
PH
697PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
698 (quoted-printable decoding).
699
cc2ed8f7 700PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 701 later the small subsequent patch to fix an introduced bug.
f951fd57 702
ddfcd446
PH
703PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
704
d45b1de8
PH
705PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
706
707PH/08 An error is now given if message_size_limit is specified negative.
708
38a0a95f 709PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 710 to be given (somewhat) arbitrary names.
38a0a95f 711
a2405d83
JJ
712JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
713 in 4.64-PH/09.
714
715JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
716 miscellaneous code fixes
717
6ea85e9a
PH
718PH/10 Added the log_reject_target ACL modifier to specify where to log
719 rejections.
720
26da7e20
PH
721PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
722 hostname. This is wrong, because it relates to the incoming message (and
723 probably the interface on which it is arriving) and not to the outgoing
724 callout (which could be using a different interface). This has been
725 changed to use the value of the helo_data option from the smtp transport
726 instead - this is what is used when a message is actually being sent. If
727 there is no remote transport (possible with a router that sets up host
728 addresses), $smtp_active_hostname is used.
6ea85e9a 729
14aa5a05 730PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 731 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
732 (a) The code assumed that strncpy() returns a negative number on buffer
733 overflow, which isn't the case. Replaced with Exim's string_format()
734 function.
735 (b) There were several signed/unsigned issues. I just did the minimum
736 hacking in of casts. There is scope for a larger refactoring.
737 (c) The code used strcasecmp() which is not a standard C function.
738 Replaced with Exim's strcmpic() function.
739 (d) The code set only $1; it now sets $auth1 as well.
740 (e) A simple test gave the error "authentication client didn't specify
741 service in request". It would seem that Dovecot has changed its
742 interface. Fortunately there's a specification; I followed it and
743 changed what the client sends and it appears to be working now.
744
ff75a1f7
PH
745PH/13 Added $message_headers_raw to provide the headers without RFC 2047
746 decoding.
747
e6f6568e
PH
748PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
749 address A is aliased to B and C, where B exists and C does not. Without
750 -v the output is "A verified" because verification stops after a
751 successful redirection if more than one address is generated. However,
752 with -v the child addresses are also verified. Exim was outputting "A
753 failed to verify" and then showing the successful verification for C,
754 with its parentage. It now outputs "B failed to verify", showing B's
755 parentage before showing the successful verification of C.
756
d6f6e0dc
PH
757PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
758 look up a TXT record in a specific list after matching in a combined
759 list.
760
322050c2
PH
761PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
762 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
763 they consult the DNS. I had assumed they would set it the way they
764 wanted; and indeed my experiments on Linux seem to show that in some
765 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
766 To be on the safe side, however, I have now made the interface to
767 host_find_byname() similar to host_find_bydns(), with an argument
768 containing the DNS resolver options. The host_find_byname() function now
769 sets these options at its start, just as host_find_bydns() does. The smtp
770 transport options dns_qualify_single and dns_search_parents are passed to
771 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
772 of host_find_byname() use the default settings of RES_DEFNAMES
773 (qualify_single) but not RES_DNSRCH (search_parents).
774
08955dd3
PH
775PH/17 Applied (a modified version of) Nico Erfurth's patch to make
776 spool_read_header() do less string testing, by means of a preliminary
777 switch on the second character of optional "-foo" lines. (This is
778 overdue, caused by the large number of possibilities that now exist.
779 Originally there were few.) While I was there, I also converted the
780 str(n)cmp tests so they don't re-test the leading "-" and the first
781 character, in the hope this might squeeze out yet more improvement.
782
1eccaa59
PH
783PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
784 flag allowing group syntax was set by the header_syntax check but not
785 turned off, possible causing trouble later; (2) The flag was not being
786 set at all for the header_verify test, causing "group"-style headers to
787 be rejected. I have now set it in this case, and also caused header_
788 verify to ignore an empty address taken from a group. While doing this, I
789 came across some other cases where the code for allowing group syntax
790 while scanning a header line wasn't quite right (mostly, not resetting
791 the flag correctly in the right place). These bugs could have caused
792 trouble for malformed header lines. I hope it is now all correct.
793
602e59e5
PH
794PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
795 with the "reply" argument non-NULL. The code, however (which originally
796 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
797 but it didn't always do it. This confused somebody who was copying the
798 code for some other use. I have removed all the tests.
799
411ef850
PH
800PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
801 feature that was used to support insecure browsers during the U.S. crypto
802 embargo. It requires special client support, and Exim is probably the
803 only MTA that supported it -- and would never use it because real RSA is
804 always available. This code has been removed, because it had the bad
805 effect of slowing Exim down by computing (never used) parameters for the
806 RSA_EXPORT functionality.
807
7befa435
PH
808PH/21 On the advice of Timo Sirainen, added a check to the dovecot
809 authenticator to fail if there's a tab character in the incoming data
810 (there should never be unless someone is messing about, as it's supposed
811 to be base64-encoded). Also added, on Timo's advice, the "secured" option
812 if the connection is using TLS or if the remote IP is the same as the
813 local IP, and the "valid-client-cert option" if a client certificate has
814 been verified.
815
48da4259 816PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
817 authenticators. This can be used for authorization after authentication
818 succeeds. (In the case of plaintext, it servers for both authentication
819 and authorization.)
820
48da4259
PH
821PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
822 if any retry times were supplied.
823
d1d5595c
PH
824PH/24 Exim crashed if verify=helo was activated during an incoming -bs
825 connection, where there is no client IP address to check. In this
826 situation, the verify now always succeeds.
827
0ef732d9
PH
828PH/25 Applied John Jetmore's -Mset patch.
829
328895cc
PH
830PH/26 Added -bem to be like -Mset, but loading a message from a file.
831
fd700877
PH
832PH/27 In a string expansion for a processed (not raw) header when multiple
833 headers of the same name were present, leading whitespace was being
834 removed from all of them, but trailing whitespace was being removed only
835 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
836 before concatenation. Completely empty headers in a concatenation (as
837 before) are ignored.
fd700877 838
8dce1a6f
PH
839PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
840 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
841
17af4a17
PH
842PH/29 [Removed. This was a change that I later backed out, and forgot to
843 correct the ChangeLog entry (that I had efficiently created) before
844 committing the later change.]
f6c332bd
PH
845
846PH/30 Exim was sometimes attempting to deliver messages that had suffered
847 address errors (4xx response to RCPT) over the same connection as other
848 messages routed to the same hosts. Such deliveries are always "forced",
849 so retry times are not inspected. This resulted in far too many retries
850 for the affected addresses. The effect occurred only when there were more
851 hosts than the hosts_max_try setting in the smtp transport when it had
852 the 4xx errors. Those hosts that it had tried were not added to the list
853 of hosts for which the message was waiting, so if all were tried, there
854 was no problem. Two fixes have been applied:
855
856 (i) If there are any address or message errors in an SMTP delivery, none
857 of the hosts (tried or untried) are now added to the list of hosts
858 for which the message is waiting, so the message should not be a
859 candidate for sending over the same connection that was used for a
860 successful delivery of some other message. This seems entirely
861 reasonable: after all the message is NOT "waiting for some host".
862 This is so "obvious" that I'm not sure why it wasn't done
863 previously. Hope I haven't missed anything, but it can't do any
864 harm, as the worst effect is to miss an optimization.
865
866 (ii) If, despite (i), such a delivery is accidentally attempted, the
867 routing retry time is respected, so at least it doesn't keep
868 hammering the server.
869
c1114884
PH
870PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
871 in ${readsocket because some servers need this prod.
872
7a0743eb
PH
873PH/32 Added some extra debug output when updating a wait-xxx database.
874
0d85fa3f
PH
875PH/33 The hint "could be header name not terminated by colon", which has been
876 given for certain expansion errors for a long time, was not being given
877 for the ${if def:h_colon_omitted{... case.
878
1bf43b78
PH
879PH/34 The spec says: "With one important exception, whenever a domain list is
880 being scanned, $domain contains the subject domain." There was at least
881 one case where this was not true.
882
520de300
PH
883PH/35 The error "getsockname() failed: connection reset by peer" was being
884 written to the panic log as well as the main log, but it isn't really
885 panic-worthy as it just means the connection died rather early on. I have
886 removed the panic log writing for the ECONNRESET error when getsockname()
887 fails.
888
48c7f9e2
PH
889PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
890 runs only) independently of the message's sender address. This meant
891 that, if the 4xx error was in fact related to the sender, a different
892 message to the same recipient with a different sender could confuse
893 things. In particualar, this can happen when sending to a greylisting
894 server, but other circumstances could also provoke similar problems.
895 I have changed the default so that the retry time for these errors is now
896 based a combination of the sender and recipient addresses. This change
897 can be overridden by setting address_retry_include_sender=false in the
898 smtp transport.
899
99ea1c86
PH
900PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
901 remote server are returned as part of bounce messages. This was not
902 happening for LMTP over a pipe (the lmtp transport), but now it is the
903 same for both kinds of LMTP.
904
a2042e78
PH
905PH/38 Despite being documented as not happening, Exim was rewriting addresses
906 in header lines that were in fact CNAMEs. This is no longer the case.
907
4fbcfc2e
PH
908PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
909 and queue runs started by the daemon processed all messages. This has
910 been fixed so that -R and -S can now usefully be given with -q<time>.
911
aa41d2de
PH
912PH/40 Import PCRE release 6.7 (fixes some bugs).
913
af561417
PH
914PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
915
3cc66b45
PH
916PH/42 Give an error if -q is specified more than once.
917
194cc0e4
PH
918PH/43 Renamed the variables $interface_address and $interface_port as
919 $received_ip_address and $received_port, to make it clear that these
920 values apply to message reception, and not to the outgoing interface when
921 a message is delivered. (The old names remain recognized, of course.)
922
a401ddaa
PH
923PH/44 There was no timeout on the connect() call when using a Unix domain
924 socket in the ${readsocket expansion. There now is.
925
4e88a19f
PH
926PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
927 be meaningful with "accept".
928
d7d7b289
SC
929SC/01 Eximstats V1.43
930 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
931
932SC/02 Eximstats V1.44
933 Use a glob alias rather than an array ref in the generated
934 parser. This improves both readability and performance.
935
936SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
937 Collect SpamAssassin and rejection statistics.
938 Don't display local sender or destination tables unless
939 there is data to show.
940 Added average volumes into the top table text output.
941
942SC/04 Eximstats V1.46
943 Collect data on the number of addresses (recipients)
944 as well as the number of messages.
945
946SC/05 Eximstats V1.47
947 Added 'Message too big' to the list of mail rejection
948 reasons (thanks to Marco Gaiarin).
949
950SC/06 Eximstats V1.48
951 Mainlog lines which have GMT offsets and are too short to
952 have a flag are now skipped.
953
954SC/07 Eximstats V1.49 (Alain Williams)
955 Added the -emptyok flag.
956
957SC/08 Eximstats V1.50
958 Fixes for obtaining the IP address from reject messages.
959
0ea2a468
JJ
960JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
961 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
962 whitesspace changes from 4.64-PH/27
963
964JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
965 match 4.64-PH/13
966
967JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
968 are found, allow negative numbers in numeric criteria)
969
970JJ/06 exipick.20061117.2, added new $message_body_missing variable
971
972JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
973 to match changes made in 4.64-PH/43
974
8a10f5a4
PH
975PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
976
30e18802
PH
977PH/47 Put in an explicit test for a DNS lookup of an address record where the
978 "domain" is actually an IP address, and force a failure. This locks out
979 those revolvers/nameservers that support "A-for-A" lookups, in
980 contravention of the specifications.
981
55728a4f
PH
982PH/48 When a host name was looked up from an IP address, and the subsequent
983 forward lookup of the name timed out, the host name was left in
984 $sender_host_name, contrary to the specification.
d7d7b289 985
d7837193
PH
986PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
987 restricted to single-key lookups, Exim was not diagnosing an error if
988 * or *@ was used with a query-style lookup.
989
87054a31
PH
990PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
991
ea2c01d2
MH
992MH/01 local_scan ABI version incremented to 1.1. It should have been updated
993 long ago, but noone interested enough thought of it. Let's just say that
994 the "1.1" means that there are some new functions that weren't there at
995 some point in the past.
996
e4fa6968
PH
997PH/51 Error processing for expansion failure of helo_data from an smtp
998 transport during callout processing was broken.
999
56f5d9bd
PH
1000PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1001 tested/used via the -bh/-bhc/-bs options.
1002
922e1c28
PH
1003PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1004 bug, fixed in subsequent PCRE releases).
1005
21eb6e72
PH
1006PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1007 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1008
a0540757
PH
1009PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1010
944e9e9c 1011
478be7b0
SC
1012Exim version 4.63
1013-----------------
1014
1015SC/01 Use a glob alias rather than an array ref in eximstats generated
1016 parser. This improves both readability and performance.
1017
1018SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1019 Don't display local sender or destination tables in eximstats unless
1020 there is data to show.
1021 Added average volumes into the eximstats top table text output.
1022
1023SC/03 Collect data on the number of addresses (recipients) as well
1024 as the number of messages in eximstats.
1025
2b965a65
TF
1026TF/01 Correct an error in the documentation for the redirect router. Exim
1027 does (usually) call initgroups() when daemonizing.
478be7b0 1028
45b91596
PH
1029TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1030 with consistent privilege compared to when running as a daemon.
478be7b0 1031
c59f5781
TF
1032TF/03 Note in the spec that $authenticated_id is not set for local
1033 submissions from trusted users.
1034
90fc3069
TF
1035TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1036 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1037
6083aca0
TF
1038TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1039 by adding some example configuration directives to the default
1040 configuration file. A little bit of work is required to uncomment the
1041 directives and define how usernames and passwords are checked, but
1042 there is now a framework to start from.
1043
765b530f
PH
1044PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1045 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1046 without this. I don't know how relevant this is to other LDAP libraries.
1047
4e167a8c
PH
1048PH/02 Add the verb name to the "unknown ACL verb" error.
1049
4608d683
PH
1050PH/03 Magnus Holmgren's patch for filter_prepend_home.
1051
b8dc3e4a
PH
1052PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1053
5418e93b
PH
1054PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1055 directory not expanded when it should be if an expanded home directory
1056 was set for the address (which is overridden by the transport).
1057
b4a9bda2
PH
1058PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1059 libradius.
1060
45b91596
PH
1061PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1062 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1063 because it is too late at that time, and has no effect.
1064
5547e2c5
PH
1065PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1066 security issue with \' (bugzilla #107). I could not use the
1067 PQescapeStringConn() function, because it needs a PGconn value as one of
1068 its arguments.
1069
dbcef0ea
PH
1070PH/08 When testing addresses using -bt, indicate those final addresses that
1071 are duplicates that would not cause an additional delivery. At least one
1072 person was confused, thinking that -bt output corresponded to deliveries.
1073 (Suppressing duplicates isn't a good idea as you lose the information
1074 about possibly different redirections that led to the duplicates.)
1075
25257489
PH
1076PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1077 systems where poll() doesn't work, in particular OS X.
1078
c816d124
PH
1079PH/10 Added more information to debugging output for retry time not reached.
1080
a9ccd69a
PH
1081PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1082 operations in malware.c.
1083
75fa1910
PH
1084PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1085 signatures.
1086
a7d7aa58
PH
1087PH/13 If write_rejectlog was set false when logging was sent to syslog with
1088 syslog_duplication set false, log lines that would normally be written
1089 both the the main log and to the reject log were not written to syslog at
1090 all.
1091
42119b09
PH
1092PH/14 In the default configuration, change the use of "message" in ACL warn
1093 statements to "add_header".
1094
41609df5
PH
1095PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1096 not followed by a command (e.g. "seen endif").
1097
a5bd321b
PH
1098PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1099 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1100 latter.
1101
e85a7ad5 1102PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1103 so that it is now:
1104
e85a7ad5
PH
1105 ${if or { \
1106 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1107 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1108 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1109 }{no}{yes}}
1110
e85a7ad5
PH
1111 The Auto-Submitted: and various List- headers are standardised, whereas I
1112 don't think Precedence: ever was.
5dff5817 1113
d8fe1c03
PH
1114PH/18 Refactored debugging code in route_finduser() to show more information,
1115 in particular, the error code if getpwnam() issues one.
1116
16282d2b
PH
1117PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1118 This is apparently needed in addition to the PH/07 change above to avoid
1119 any possible encoding problems.
1120
35d40a98
PH
1121PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1122 but not after initializing Perl.
1123
034d99ab
PH
1124PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1125 output them only if debugging. By default they are written stderr,
1126 apparently, which is not desirable.
1127
6ec97b1b
PH
1128PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1129 queries.
1130
e22ca4ac
JJ
1131JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1132 --not options
1133
1134JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1135
33d73e3b
PH
1136PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1137 authenticated or an ident call has been made. Suppress the default
1138 values for $authenticated_id and $authenticated_sender (but permit -oMai
1139 and -oMas) when testing with -bh.
1140
9ecb03f3
PH
1141PH/24 Re-jigged the order of the tests in the default configuration so that the
1142 tests for valid domains and recipients precede the DNS black list and CSA
1143 tests, on the grounds that those ones are more expensive.
1144
084efe8d
PH
1145PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1146 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1147 This bug exists in every version of Exim that I still have, right back to
1148 0.12.
1149
366fc9f0
PH
1150PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1151 However, an attempt to turn on case-sensitivity in a regex key by
1152 including (?-i) didn't work because the subject string was already
1153 lowercased, and the effects were non-intuitive. It turns out that a
1154 one-line patch can be used to allow (?-i) to work as expected.
1155
c59f5781 1156
c887c79e
TF
1157Exim version 4.62
1158-----------------
1159
1160TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1161 other effects) broke the use of negated acl sub-conditions.
1162
1cce3af8
PH
1163PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1164 patch).
1165
afb3eaaf
PH
1166PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1167 "Deny" causes Exim to reject the incoming connection with a 554 error.
1168 Unfortunately, if there is a major crisis, such as a disk failure,
1169 tcp-wrappers gives "deny", whereas what one would like would be some
1170 kind of temporary error. A kludge has been added to help with this.
1171 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1172 554 error is used if errno is still zero or contains ENOENT (which occurs
1173 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1174 451 error is used.
1175
e173618b
PH
1176PH/03 Add -lutil to the default FreeBSD LIBS setting.
1177
dd16e114
PH
1178PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1179 errors. Otherwise a message that provokes a temporary error (when other
1180 messages do not) can cause a whole host to time out.
1181
f7fd3850
PH
1182PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1183 addresses were routed directly to files or pipes from a redirect router.
1184 File deliveries just didn't batch; pipe deliveries might have suffered
1185 odd errors.
1186
d87df92c
PH
1187PH/06 A failure to get a lock for a hints database would erroneously always say
1188 "Failed to get write lock", even when it was really a read lock.
1189
7e9f683d
PH
1190PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1191 of 0600. This has been changed to use the value of the lockfile_mode
1192 option (which defaults to 0600).
1193
bfad5236
PH
1194PH/08 Applied small patch from the Sieve maintainer.
1195
01c490df
PH
1196PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1197 folder from quota calculations, a direct delivery into this folder messed
1198 up the contents of the maildirsize file. This was because the regex was
1199 used only to exclude .Trash (or whatever) when the size of the mailbox
1200 was calculated. There was no check that a delivery was happening into an
1201 excluded directory. This bug has been fixed by ignoring all quota
1202 processing for deliveries into excluded directories.
1203
d6629cdc
PH
1204PH/10 Added the maildirfolder_create_regex option to appendfile.
1205
1cce3af8 1206
214e2000
PH
1207Exim version 4.61
1208-----------------
1209
1210PH/01 The code for finding all the local interface addresses on a FreeBSD
1211 system running IPv6 was broken. This may well have applied to all BSD
1212 systems, as well as to others that have similar system calls. The broken
1213 code found IPv4 interfaces correctly, but gave incorrect values for the
1214 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1215 that it would not match correctly against @[] and not recognize the IPv6
1216 addresses as local.
1217
f9daeae0
PH
1218PH/02 The ipliteral router was not recognizing addresses of the form user@
1219 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1220
7e66e54d
PH
1221PH/03 Added disable_ipv6.
1222
c8ea1597
PH
1223PH/04 Changed $reply_address to use the raw form of the headers instead of the
1224 decoded form, because it is most often used to construct To: headers
1225 lines in autoreplies, and the decoded form may well be syntactically
1226 invalid. However, $reply_address has leading white space removed, and all
1227 newlines turned into spaces so that the autoreply transport does not
1228 grumble.
1229
911f6fde
PH
1230PH/05 If group was specified without a user on a router, and no group or user
1231 was specified on a transport, the group from the router was ignored.
1232
47ca6d6c
PH
1233PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1234 for visible compile-time settings that can be used to change these
1235 numbers, for those that want even more. Backwards compatibility with old
1236 spool files has been maintained. However, going back to a previous Exim
1237 release will lost any variables that are in spool files.
1238
ed0e9820
PH
1239PH/07 Two small changes when running in the test harness: increase delay when
1240 passing a TCP/IP connection to a new process, in case the original
1241 process has to generate a bounce, and remove special handling of
1242 127.0.0.2 (sic), which is no longer necessary.
1243
eff37e47
PH
1244PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1245 be the same on different OS.
1246
1921d2ea
PH
1247PH/09 Moved a debug statement in filter processing to avoid a race problem when
1248 testing.
1249
b3f69ca8
JJ
1250JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1251 whether --show-vars was specified or not
1252
1253JJ/02 exipick: Added support for new ACL variable spool format introduced
1254 in 4.61-PH/06
1255
424a1c63
PH
1256PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1257 syntactically invalid From: or Reply-to: line, and a filter used this to
1258 generate an autoreply, and therefore failed to obtain an address for the
1259 autoreply, Exim could try to deliver to a non-existent relative file
1260 name, causing unrelated and misleading errors. What now happens is that
1261 it logs this as a hard delivery error, but does not attempt to create a
1262 bounce message.
1263
7a100415
PH
1264PH/11 The exinext utility has a -C option for testing purposes, but although
1265 the given file was scanned by exinext itself; it wasn't being passed on
1266 when Exim was called.
1267
19b9dc85
PH
1268PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1269 an end-of-file indication when reading a command response.
1270
309bd837
PH
1271PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1272 compiled. In many other places in Exim, IPv6 addresses are always
1273 recognized, so I have changed this. It also means that IPv4 domain
1274 literals of the form [IPV4:n.n.n.n] are now always recognized.
1275
59e82a2a
PH
1276PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1277 used if the router is not running as root, for example, when verifying at
1278 ACL time, or when using -bh. The debugging output from this situation was
1279 non-existent - all you got was a failure to exec. I have made two
1280 changes:
1281
1282 (a) Failures to set uid/gid, the current directory, or a process leader
1283 in a subprocess such as that created by queryprogram now generate
1284 suitable debugging ouput when -d is set.
1285
1286 (b) The queryprogram router detects when it is not running as root,
1287 outputs suitable debugging information if -d is set, and then runs
1288 the subprocess without attempting to change uid/gid.
1289
9edc04ce
PH
1290PH/15 Minor change to Makefile for building test_host (undocumented testing
1291 feature).
1292
1349e1e5
PH
1293PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1294 additional section of a DNS packet that returns MX or SRV records.
1295 Instead, it always explicitly searches for A/AAAA records. This avoids
1296 major problems that occur when a DNS server includes only records of one
1297 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1298 fixed another bug: if SRV records were looked up and the corresponding
1299 address records were *not* found in the additional section, the port
1300 values from the SRV records were lost.
1301
ea49d0e1
PH
1302PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1303 using the correct key (the original address) when searching the retry
1304 rules in order to find which one to use for generating the retry hint.
1305
064a94c9
PH
1306PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1307 adding the default one. Similarly, if it contains a Reply-To: header, the
1308 errors_reply_to option, if set, is not used.
1309
727071f8
PH
1310PH/19 When calculating a retry time, Exim used to measure the "time since
1311 failure" by looking at the "first failed" field in the retry record. Now
1312 it does not use this if it is later than than the arrival time of the
1313 message. Instead it uses the arrival time. This makes for better
1314 behaviour in cases where some deliveries succeed, thus re-setting the
1315 "first failed" field. An example is a quota failure for a huge message
1316 when small messages continue to be delivered. Without this change, the
1317 "time since failure" will always be short, possible causing more frequent
1318 delivery attempts for the huge message than are intended.
dd16e114 1319 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1320
f78eb7c6
PH
1321PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1322 $1, $2, $3) because the numerical variables can be reset during some
1323 expansion items (e.g. "match"), thereby losing the authentication data.
1324
21c28500
PH
1325PH/21 Make -bV show the size of off_t variables so that the test suite can
1326 decide whether to run tests for quotas > 2G.
1327
1328PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1329 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1330 filecount value is greater than 2G or if a quota value is greater than 2G
1331 on a system where the size of off_t is not greater than 4, a panic error
1332 is given.
1333
1688f43b
PH
1334PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1335 never match. The debug and -bh output now contains an explicit error
1336 message indicating a malformed IPv4 address or mask.
1337
1338PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1339 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1340 PH/23 above applies.
1341
9675b384
PH
1342PH/25 Do not write to syslog when running in the test harness. The only
1343 occasion when this arises is a failure to open the main or panic logs
1344 (for which there is an explicit test).
1345
6a3f1455
PH
1346PH/26 Added the /no_tell option to "control=freeze".
1347
dac79d3e
PH
1348PH/27 If a host name lookup failed very early in a connection, for example, if
1349 the IP address matched host_lookup and the reverse lookup yielded a name
1350 that did not have a forward lookup, an error message of the form "no IP
1351 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1352 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1353
5977a0b3
PH
1354PH/28 An enabling patch from MH: add new function child_open_exim2() which
1355 allows the sender and the authenticated sender to be set when
1356 submitting a message from within Exim. Since child_open_exim() is
1357 documented for local_scan(), the new function should be too.
1358
c91535f3
PH
1359PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1360 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1361 results in an empty string is now treated as unset.
1362
0d46a8c8
PH
1363PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1364
278c6e6c
PH
1365PH/31 Added sender_verify_fail logging option.
1366
2cbb4081
PH
1367PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1368 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1369 tidied the source and removed it altogether.
1370
3eef829e
PH
1371PH/33 When a queue run was abandoned because the load average was too high, a
1372 log line was always written; now it is written only if the queue_run log
1373 selector is set. In addition, the log line for abandonment now contains
1374 information about the queue run such as the pid. This is always present
1375 in "start" and "stop" lines but was omitted from the "abandon" line.
1376
1ab95fa6
PH
1377PH/34 Omit spaces between a header name and the colon in the error message that
1378 is given when verify = headers_syntax fails (if there are lots of them,
1379 the message gets confusing).
1380
230205fc
PH
1381PH/35 Change the default for dns_check_names_pattern to allow slashes within
1382 names, as there are now some PTR records that contain slashes. This check
1383 is only to protect against broken name servers that fall over on strange
1384 characters, so the fact that it applies to all lookups doesn't matter.
1385
75e0e026
PH
1386PH/36 Now that the new test suite is complete, we can remove some of the
1387 special code in Exim that was needed for the old test suite. For example,
1388 sorting DNS records because real resolvers return them in an arbitrary
1389 order. The new test suite's fake resolver always returns records in the
1390 same order.
1391
1392PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1393 bounces) except when queue_only is set, to avoid logging races between
1394 the different processes.
1395
145396a6
PH
1396PH/38 Panic-die if .include specifies a non-absolute path.
1397
3cd34f13
PH
1398PH/39 A tweak to the "H" retry rule from its user.
1399
11121d3d
JJ
1400JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1401 a label. They prevented compilation on older perls.
1402
1403JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1404 a warning to be raised on newish perls.
1405
1406JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1407 on queue. Changes to match documented behaviour of showing count of
1408 messages matching specified criteria.
1409
8def5aaf
PH
1410PH/40 Changed the default ident timeout from 30s to 5s.
1411
929ba01c
PH
1412PH/41 Added support for the use of login_cap features, on those BSD systems
1413 that have them, for controlling the resources used by pipe deliveries.
1414
2632889e
PH
1415PH/42 The content-scanning code uses fopen() to create files in which to put
1416 message data. Previously it was not paying any attention to the mode of
1417 the files. Exim runs with umask(0) because the rest of the code creates
1418 files with open(), and sets the required mode explicitly. Thus, these
1419 files were ending up world-writeable. This was not a big issue, because,
1420 being within the spool directory, they were not world-accessible. I have
1421 created a function called modefopen, which takes an additional mode
1422 argument. It sets umask(777), creates the file, chmods it to the required
1423 mode, then resets the umask. All the relevant calls to fopen() in the
1424 content scanning code have been changed to use this function.
1425
944a9c55
PH
1426PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1427 to 24 hours. This avoids potential overflow problems when processing G
1428 and H retry rules. I suspect nobody ever tinkers with this value.
1429
4a23603b
PH
1430PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1431
4730f942
PH
1432PH/45 When the plaintext authenticator is running as a client, the server's
1433 challenges are checked to ensure they are valid base64 strings. By
1434 default, the authentication attempt is cancelled if an invalid string is
1435 received. Setting client_ignore_invalid_base64 true ignores these errors.
1436 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1437 they are received. Thus, the responses can be made to depend on the
1438 challenges. If an invalid string is ignored, an empty string is placed in
1439 the variable.
1440
30dba1e6
PH
1441PH/46 Messages that are created by the autoreply transport now contains a
1442 References: header, in accordance with RFCs 2822 and 3834.
1443
382afc6b
PH
1444PH/47 Added authenticated_sender_force to the smtp transport.
1445
a86229cf
PH
1446PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1447
50c99ba6
PH
1448PH/49 Installed latest patch from the Sieve maintainer.
1449
d35e429d
PH
1450PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1451 was also set, the appendfile transport was unnecessarily scanning a
1452 directory of message files (e.g. for maildir delivery) to find the count
1453 of files (along with the size), even though it did not need this
1454 information. It now does the scan only if it needs to find either the
1455 size of the count of files.
1456
f90d018c
PH
1457PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1458
75def545
PH
1459PH/52 Two bugs concerned with error handling when the smtp transport is
1460 used in LMTP mode:
1461
1462 (i) Exim was not creating retry information for temporary errors given
1463 for individual recipients after the DATA command when the smtp transport
1464 was used in LMTP mode. This meant that they could be retried too
1465 frequently, and not timed out correctly.
1466
1467 (ii) Exim was setting the flag that allows error details to be returned
1468 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1469 recipients that were returned after the DATA command.
1470
1471PH/53 This is related to PH/52, but is more general: for any failing address,
1472 when detailed error information was permitted to be returned to the
1473 sender, but the error was temporary, then after the final timeout, only
1474 "retry timeout exceeded" was returned. Now it returns the full error as
1475 well as "retry timeout exceeded".
1476
c46782ef
PH
1477PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1478 do this, and (what is worse) MTAs that accept it.
1479
71fafd95
PH
1480PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1481 will now be deprecated.
1482
2c5db4fd
PH
1483PH/56 New os.c-cygwin from the Cygwin maintainer.
1484
9cf6b11a
JJ
1485JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1486 formats (previously only available in exim formats via -bpr, -bpru,
1487 and -bpra. Now also available in native and exiqgrep formats)
1488
1489JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1490 with very large, slow to parse queues
1491
1492JJ/08 exipick: added ! as generic prefix to negate any criteria format
1493
1494JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1495
898d150f
PH
1496PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1497 responses to authentication challenges, though it was showing the
1498 challenges; (ii) I've removed the CR characters from the debug output for
1499 SMTP output lines.
1500
46218253
PH
1501PH/58 Allow for the insertion of a newline as well as a space when a string
1502 is turned into more than one encoded-word during RFC 2047 encoding. The
1503 Sieve code now uses this.
1504
e97957bc
PH
1505PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1506 data_4xx, lost_connection, tls_required.
1507
81e509d7
PH
1508PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1509 message was being sent as an SMTP response.
1510
3d240ff7
PH
1511PH/61 Add -l and -k options to exicyclog.
1512
b37c4101
PH
1513PH/62 When verifying, if an address was redirected to one new address, so that
1514 verification continued, and the new address failed or deferred after
1515 having set something in $address_data, the value of $address_data was not
1516 passed back to the ACL. This was different to the case when no
1517 redirection occurred. The value is now passed back in both cases.
1518
79378e0f
PH
1519PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1520 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1521 use login_cap.h, so on its own it isn't the distinguishing feature. The
1522 new name refers directly to the setclassresources() function.
1523
e49c7bb4
PH
1524PH/65 Added configuration files for NetBSD3.
1525
d114ec46
PH
1526PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1527
f3d7df6c
PH
1528PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1529 is preferred over IPv4.
1530
715ab376
PH
1531PH/68 The bounce_return_message and bounce_return_body options were not being
1532 honoured for bounces generated during the reception of non-SMTP messages.
1533 In particular, this applied to messages rejected by the ACL. This bug has
1534 been fixed. However, if bounce_return_message is true and bounce_return_
1535 body is false, the headers that are returned for a non-SMTP message
1536 include only those that have been read before the error was detected.
1537 (In the case of an ACL rejection, they have all been read.)
1538
6b31b150
PH
1539PH/69 The HTML version of the specification is now built in a directory called
1540 spec_html instead of spec.html, because the latter looks like a path with
1541 a MIME-type, and this confuses some software.
1542
1543PH/70 Catch two compiler warnings in sieve.c.
1544
d515a917
PH
1545PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1546 function verify_get_ident() calls ip_connect() to connect a socket, but
1547 if the "connect()" function timed out, ip_connect() used to close the
1548 socket. However, verify_get_ident() also closes the socket later, and in
1549 between Exim writes to the log, which may get opened at this point. When
1550 the socket was closed in ip_connect(), the log could get the same file
1551 descriptor number as the socket. This naturally causes chaos. The fix is
1552 not to close the socket in ip_connect(); the socket should be closed by
1553 the function that creates it. There was only one place in the code where
1554 this was missing, in the iplookup router, which I don't think anybody now
1555 uses, but I've fixed it anyway.
1556
9b8fadde
PH
1557PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1558 well as to direct DNS lookups. Otherwise the handling of names in host
1559 lists is inconsistent and therefore confusing.
1560
214e2000 1561
5de37277
PH
1562Exim version 4.60
1563-----------------
1564
cc38ddbf
PH
1565PH/01 Two changes to the default runtime configuration:
1566
1567 (1) Move the checks for relay_from_hosts and authenticated clients from
1568 after to before the (commented out) DNS black list checks.
1569
1570 (2) Add control=submission to the relay_from_hosts and authenticated
1571 clients checks, on the grounds that messages accepted by these
1572 statements are most likely to be submissions.
5de37277 1573
72fdd6ae
PH
1574PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1575
1576 (1) Generate an error if the third argument for the ${prvs expansion is
1577 not a single digit.
1578
1579 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1580 string.
1581
1582 (3) Reset the variables that are obtained from the first argument of
1583 ${prvscheck and used in the second argument before leaving the code,
1584 because their memory is reclaimed, so using them afterwards may do
1585 silly things.
1586
1587 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1588 one (it's much easier than Tom thought :-).
1589
1590 (5) Because of (4), we can now allow for the use of $prvscheck_result
1591 inside the third argument.
cb9328de 1592
cb741023
PH
1593PH/03 For some reason, the default setting of PATH when running a command from
1594 a pipe transport was just "/usr/bin". I have changed it to
1595 "/bin:/usr/bin".
1596
f174f16e
PH
1597PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1598 anything to be listed in the output from -bV.
b2f5a032 1599
c25242d7
PH
1600PH/05 When a filter generated an autoreply, the entire To: header line was
1601 quoted in the delivery log line, like this:
1602
1603 => >A.N.Other <ano@some.domain> <original@ddress> ...
1604
1605 This has been changed so that it extracts the operative address. There
1606 may be more than one such address. If so, they are comma-separated, like
1607 this:
1608
1609 => >ano@some.domain,ona@other.domain <original@ddress> ...
1610
82c19f95
PH
1611PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1612 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1613 not being looked up in the rDNS to get a host name, Exim was showing the
1614 IP address twice in Received: lines, even though the IP addresses were
1615 identical. For example:
1616
1617 Received: from [1.2.3.4] (helo=[1.2.3.4])
1618
1619 However, if the real host name was known, it was omitting the HELO data
1620 if it matched the actual IP address. This has been tidied up so that it
1621 doesn't show the same IP address twice.
1622
d7ffbc12
PH
1623PH/07 When both +timestamp and +memory debugging was on, the value given by
1624 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1625 called by the debug printing, thereby overwriting the timestamp buffer.
1626 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1627
9f526266
PH
1628PH/08 When the original message was included in an autoreply transport, it
1629 always said "this is a copy of the message, including all the headers",
1630 even if body_only or headers_only was set. It now gives an appropriate
1631 message.
1632
87fcc8b9
PH
1633PH/09 Applied a patch from the Sieve maintainer which:
1634
1635 o fixes some comments
1636 o adds the (disabled) notify extension core
1637 o adds some debug output for the result of if/elsif tests
1638 o points to the current vacation draft in the documentation
1639 and documents the missing references header update
1640
1641 and most important:
1642
1643 o fixes a bug in processing the envelope test (when testing
1644 multiple envelope elements, the last element determinted the
1645 result)
1646
456682f5
PH
1647PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1648 Electronic Mail") by including:
1649
1650 Auto-submitted: auto-generated
1651
1652 in the messages that it generates (bounce messages and others, such as
1653 warnings). In the case of bounce messages for non-SMTP mesages, there was
1654 also a typo: it was using "Auto_submitted" (underscore instead of
1655 hyphen). Since every message generated by Exim is necessarily in response
1656 to another message, thes have all been changed to:
1657
1658 Auto-Submitted: auto-replied
1659
1660 in accordance with these statements in the RFC:
1661
1662 The auto-replied keyword:
1663
1664 - SHOULD be used on messages sent in direct response to another
1665 message by an automatic process,
1666
1667 - MUST NOT be used on manually-generated messages,
1668
1669 - MAY be used on Delivery Status Notifications (DSNs) and Message
1670 Disposition Notifications (MDNs),
1671
1672 - MUST NOT be used on messages generated by automatic or periodic
1673 processes, except for messages which are automatic responses to
1674 other messages.
1675
3e46c1aa
PH
1676PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1677 to the default Received: header definition.
456682f5 1678
49826d12
PH
1679PH/12 Added log selector acl_warn_skipped (default on).
1680
eba0c039
PH
1681PH/13 After a successful wildlsearch lookup, discard the values of numeric
1682 variables because (a) they are in the wrong storage pool and (b) even if
1683 they were copied, it wouldn't work properly because of the caching.
1684
a0d6ba8a
PH
1685PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1686 checking when decoding. Apparently there are clients that generate
1687 overlong encoded strings. Why am I not surprised?
1688
f0917727
PH
1689PH/15 If the first argument of "${if match_address" was not empty, but did not
1690 contain an "@" character, Exim crashed. Now it writes a panic log message
1691 and treats the condition as false.
1692
096fee00
PH
1693PH/16 In autoreply, treat an empty string for "once" the same as unset.
1694
024bd3c2
PH
1695PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1696 extension "envelope-auth". The code is finished and in agreement with
1697 other implementations, but there is no documentation so far and in fact,
1698 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1699 not changing the active code.
1700
1701 Print executed "if" and "elsif" statements when debugging is used. This
1702 helps a great deal to understand what a filter does.
1703
1704 Document more things not specified clearly in RFC3028. I had all this
1705 sorted out, when out of a sudden new issues came to my mind. Oops."
1706
df199fec
PH
1707PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1708 (Bugzilla #53).
1709
d27f1df3
PH
1710PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1711 canonical form (as documented). However, after a host name lookup from
1712 the IP address, check_host() was doing a simple string comparison with
1713 addresses acquired from the DNS when checking that the found name did
1714 have the original IP as one of its addresses. Since any found IPv6
1715 addresses are likely to be in abbreviated form, the comparison could
1716 fail. Luckily, there already exists a function for doing the comparison
1717 by converting both addresses to binary, so now that is used instead of
1718 the text comparison.
1719
96776534
PH
1720PH/20 There was another similar case to PH/19, when a complete host name was
1721 given in a host list; looking up its IP address could give an abbreviated
1722 form, whereas the current host's name might or might not be abbreviated.
1723 The same fix has been applied.
1724
5de37277 1725
9a799bc0
PH
1726Exim version 4.54
1727-----------------
1728
1729PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1730 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1731 It now does.
1732
99a4b039
PH
1733PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1734 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1735
1736PH/03 Typo: missing ".o" in src/pcre/Makefile.
1737
4b233853
PH
1738PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1739 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1740 Also, for "Auto-Submitted", treat anything other than "no" as
1741 non-personal, in accordance with RFC 3834. (Previously it treated
1742 anything starting "auto-" as non-personal.)
1743
8857ccfd
PH
1744TF/01 The control=submission/name=... option had a problem with syntax
1745 errors if the name included a slash character. The /name= option
1746 now slurps the rest of the string, so it can include any characters
1747 but it must come last in the list of options (after /sender_retain
1748 or /domain=).
1749
433a2980
PH
1750PH/05 Some modifications to the interface to the fake nameserver for the new
1751 testing suite.
1752
3e46c1aa 1753
9a799bc0 1754
e3a311ba
TK
1755Exim version 4.53
1756-----------------
1757
1758TK/01 Added the "success_on_redirect" address verification option. See
1759 NewStuff for rationale and an example.
1760
13b685f9
PH
1761PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1762
395ff96d
PH
1763PH/02 Patch to exigrep to allow it to work on syslog lines.
1764
5b68f6e4
PH
1765PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1766 fread() to skip over the body file's header line, because in Cygwin the
1767 header line is locked and is inaccessible.
1768
1ab52c69
PH
1769PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1770 co-exist for some time) to make it clear that it is the Exim ID that is
1771 referenced, not the Message-ID: header line.
1772
b07e6aa3
PH
1773PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1774 string_format() function, because snprintf() does not exist on all
1775 operating systems.
1776
254e032f
PH
1777PH/06 The use of forbid_filter_existstest now also locks out the use of the
1778 ${stat: expansion item.
1779
3af76a81
PH
1780PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1781 protocol synchronization error", to keep the pedants happy.
1782
2548ba04
PH
1783PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1784 well as for IRIX systems, when gcc is being used. See the host.c source
1785 file for comments.
1786
b6c6011d
PH
1787PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1788
cf39cf57
PH
1789PH/10 Named domain lists were not working if used in a queue_smtp_domains
1790 setting.
1791
f1513293
PH
1792PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1793 transport and to the smtp transport in LMTP mode.
1794
727549a4
PH
1795TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1796
af46795e
PH
1797PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1798 run a filter in a subprocess. This could lead to confusion in subsequent
1799 lookups in the parent process. There should also be a search_tidyup() at
1800 the end of the subprocess.
1801
d7b47fd0
PH
1802PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1803 only if the host matched helo_try_verify_hosts, which caused the
1804 verification to occur when the EHLO/HELO command was issued. The ACL just
1805 tested the remembered result. Now, if a previous verification attempt has
1806 not happened, "verify = helo" does it there and then.
1807
ee744174
JJ
1808JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1809
b582ab87
PH
1810TK/03 Fix log output including CR from clamd.
1811
41a13e0a
PH
1812PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1813 exist provoked a memory error which could cause a segfault.
1814
f625cc5a
PH
1815PH/15 Installed PCRE 6.2
1816
1817PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1818
21f7af35
PH
1819PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1820 of the problem. Specifically, suggested +O2 rather than +O1 for the
1821 HP-UX compiler.
1822
31480e42
PH
1823PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1824
2d280592
PH
1825PH/20 If a delivery was routed to a non-standard port by means of an SRV
1826 record, the port was not correctly logged when the outgoing_port log
1827 selector was set (it logged the transort's default port).
1828
7cd1141b
PH
1829PH/21 Added support for host-specific ports to manualroute, queryprogram,
1830 fallback_hosts, and "hosts" in the smtp transport.
1831
1832PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1833 host errors such as "Connection refused".
1834
750af86e
PH
1835PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1836 authentication with radiusclient 0.4.9:
1837
1838 - Error returned from rc_read_config was caught wrongly
1839 - Username/password not passed on to radius server due to wrong length.
1840
1841 The presumption is that some radiusclient API changes for 4.51/PH/17
1842 were not taken care of correctly. The code is still untested by me (my
1843 Linux distribution still has 0.3.2 of radiusclient), but it was
1844 contributed by a Radius user.
1845
1846PH/24 When doing a callout, the value of $domain wasn't set correctly when
1847 expanding the "port" option of the smtp transport.
1848
4304270b
TK
1849TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1850 while reading a MIME header. Thanks to Tom Hughes for a patch.
1851
750af86e
PH
1852PH/24 Include config.h inside local_scan.h so that configuration settings are
1853 available.
1854
64ffc24f
PH
1855PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1856 that in an ACL for RCPT (for example), you can examine exactly what was
1857 received.
1858
5dd9625b
PH
1859PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1860 commands, but it was not correctly comparing the address with the actual
1861 client host address. Thus, it would show the EHLO address in Received:
1862 header lines when this was not necessary.
1863
5591031b
PH
1864PH/27 Added the % operator to ${eval:}.
1865
ba18e66a
PH
1866PH/28 Exim tries to create and chdir to its spool directory when it starts;
1867 it should be ignoring failures (because with -C, for example, it has lost
1868 privilege). It wasn't ignoring creation failures other than "already
1869 exists".
1870
9cec981f
PH
1871PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1872 -bV or -d is used.
1873
aa2b5c79
PH
1874PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1875 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1876 too many continuations, the temporary file was not being removed, and the
1877 return code was incorrect.
aa2b5c79 1878
48a53b7f
PH
1879PH/31 Missing "BOOL" in function definition in filtertest.c.
1880
1c59d63b
PH
1881PH/32 Applied Sieve patches from the maintainer.
1882
671012da
TK
1883TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1884
1509d3a8
PH
1885PH/33 Added "verify = not_blind".
1886
1887PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1888 Local/Makefile (with some defaults set). These are used in built scripts
1889 such as exicyclog, but they have never been used in the exim_install
1890 script (though there are many overriding facilities there). I have
1891 arranged that the exim_install script now takes note of these two
1892 settings.
1893
1894PH/35 Installed configuration files for Dragonfly.
1895
2fe1a124
PH
1896PH/36 When a locally submitted message by a trusted user did not contain a
1897 From: header, and the sender address was obtained from -f or from an SMTP
1898 MAIL command, and the trusted user did not use -F to supply a sender
1899 name, $originator_name was incorrectly used when constructing a From:
1900 header. Furthermore, $originator_name was used for submission mode
1901 messages from external hosts without From: headers in a similar way,
1902 which is clearly wrong.
1903
8800895a
PH
1904PH/37 Added control=suppress_local_fixups.
1905
ccfdb010
PH
1906PH/38 When log_selector = +received_sender was set, and the addition of the
1907 sender made the log line's construction buffer exactly full, or one byte
1908 less than full, an overflow happened when the terminating "\n" was
1909 subsequently added.
1910
1130bfb0
PH
1911PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1912 when the result of a list match is failure because a DNS lookup failed.
1913
ebcb507f
PH
1914PH/40 RM_COMMAND is now used in the building process.
1915
c35e155c
PH
1916PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1917 the "build-* directories that it finds.
1918
95d1f782
PH
1919PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1920 address in a domain literal was a prefix of an interface address.
1921
fd6de02e
PH
1922PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1923 when verifying a sender address, unless rewrite_headers is false.
1924
58de37c5
PH
1925PH/44 Wrote a long comment about why errors_to addresses are verified as
1926 recipients, not senders.
1927
261cf466
TF
1928TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1929 the ratelimit ACL was added.
1930
3ee512ff
PH
1931PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1932
e08c430f
PH
1933PH/46 Added extra information about PostgreSQL errors to the error string.
1934
bef5a11f
PH
1935PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1936 avoiding the need to install special zones in a real server. This is
1937 backwards compatible; if it can't find the fake resolver, it drops back.
1938 Thus, both old and new test suites can be run.
1939
7546de58
TF
1940TF/02 Added util/ratelimit.pl
1941
e5d5a95f
TF
1942TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1943 clock is set back in time.
1944
2e88a017
TF
1945TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1946 Candler <B.Candler@pobox.com>.
1947
a5f65aa4
TF
1948TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1949 OK for addresses that are the result of redirections.
1950
e7726cbf
PH
1951PH/48 A number of further additions for the benefit of the new test suite,
1952 including a fake gethostbyname() that interfaces to the fake DNS resolver
1953 (see PH/47 above).
1954
a7fdad5b
TF
1955TF/06 The fix for widen_domains has also been applied to qualify_single and
1956 search_parents which are the other dnslookup options that can cause
1957 header rewrites.
1958
6af56900
PH
1959PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1960 type ("H").
1961
0925ede6
PH
1962PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1963
66afa403
TF
1964TF/07 Exim produced the error message "an SRV record indicated no SMTP
1965 service" if it encountered an MX record with an empty target hostname.
1966 The message is now "an MX or SRV record indicated no SMTP service".
1967
0154e85a
TF
1968TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1969 if the DNS of the sending site is misconfigured. This is quite a
1970 common situation. This change restores the behaviour of treating a
1971 helo verification defer as a failure.
1972
16f12c76
PH
1973PH/51 If self=fail was set on a router, the bounce message did not include the
1974 actual error message.
1975
bbe902f0 1976
e5a9dba6
PH
1977Exim version 4.52
1978-----------------
1979
1980TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1981
22c3b60b
PH
1982PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1983 command itself ended in error, the underlying message about the transport
1984 filter timeout was being overwritten with the pipe command error. Now the
1985 underlying error message should be appended to the second error message.
1986
06a9b4b5
PH
1987TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1988
c1ac6996
PH
1989PH/02 Reduce the amount of output that "make" produces by default. Full output
1990 can still be requested.
1991
9c7a242c
PH
1992PH/03 The warning log line about a condition test deferring for a "warn" verb
1993 was being output only once per connection, rather than after each
1994 occurrence (because it was using the same function as for successful
1995 "warn" verbs). This seems wrong, so I have changed it.
1996
87ba3f5f
PH
1997TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1998 it should not have, which might have caused a crash in the right
1999 circumstances, but probably never did.
2000
2001PH/04 Installed a modified version of Tony Finch's patch to make submission
2002 mode fix the return path as well as the Sender: header line, and to
2003 add a /name= option so that you can make the user's friendly name appear
2004 in the header line.
2005
29aba418
TF
2006TF/03 Added the control = fakedefer ACL modifier.
2007
fe0dab11
TF
2008TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2009 Mark Lowes for thorough testing.
870f6ba8 2010
11d337a4
TK
2011TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2012
2013TK/03 Merged latest SRS patch from Miles Wilton.
2014
415c8f3b
PH
2015PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2016 with the definition in sysexits.h (which is #included earlier).
2017 Fortunately, Exim does not actually use EX_OK. The code used to try to
2018 preserve the sysexits.h value, by assumimg that macro definitions were
2019 scanned for macro replacements. I have been disabused of this notion,
2020 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2021
958541e9
PH
2022PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2023 in the smtp transport. When a block could not be written in a single
2024 write() function, the timeout was being re-applied to each part-write.
2025 This seems wrong - if the receiver was accepting one byte at a time it
2026 would take for ever. The timeout is now adjusted when this happens. It
2027 doesn't have to be particularly precise.
2028
c206415f
TK
2029TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2030 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2031
2a4be8f9
PH
2032PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2033 without a domain if the check to <postmaster@domain> fails.
2034
1cba11c5
SC
2035SC/01 Eximstats: added -xls and the ability to specify output files
2036 (patch written by Frank Heydlauf).
2037
2038SC/02 Eximstats: use FileHandles for outputing results.
2039
2040SC/03 Eximstats: allow any combination of xls, txt, and html output.
2041
2042SC/04 Eximstats: fixed display of large numbers with -nvr option
2043
2044SC/05 Eximstats: fixed merging of reports with empty tables.
2045
2046SC/06 Eximstats: added the -include_original_destination flag
2047
2048SC/07 Eximstats: removed tabs and trailing whitespace.
2049
1005d00e
TK
2050TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2051
2052TK/06 MBOX spool code: Add real "From " MBOX separator line
2053 so the .eml file is really in mbox format (even though
2054 most programs do not really care). Patch from Alex Miller.
2055
2056TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2057 The latter is generated from $received_to and is only set if the
2058 message has one envelope recipient. SA can use these headers,
2059 obviously out-of-the-box. Patch from Alex Miller.
2060
9b4768fa
PH
2061PH/08 The ${def test on a variable was returning false if the variable's
2062 value was "0", contrary to what the specification has always said!
2063 The result should be true unless the variable is empty.
2064
2065PH/09 The syntax error of a character other than { following "${if
2066 def:variable_name" (after optional whitespace) was not being diagnosed.
2067 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2068 accidental colon was present, for example, could give incorrect results.
2069
0d7eb84a
PH
2070PH/10 Tidied the code in a number of places where the st_size field of a stat()
2071 result is used (not including appendfile, where other changes are about
2072 to be made).
2073
2074PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2075 This involved changing a lot of size variables from int to off_t. It
2076 should work with maildirs and everything.
2077
40727bee
TK
2078TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2079 spamd dying while we are connected to it.
2080
554d2369
TF
2081TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2082 <jgh@wizmail.org>
2083
1f922db1
PH
2084PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2085 function for BDB 4.3.
2086
ef213c3b
PH
2087PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2088
8ac170f3
PH
2089PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2090 the sources for PCRE have been re-arranged and more files are now
2091 involved.
2092
b1c749bb
PH
2093PH/15 The code I had for printing potentially long long variables in PH/11
2094 above was not the best (it lost precision). The length of off_t variables
2095 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2096 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2097 to be "long long int" or "long int". This is needed for the internal
2098 formatting function string_vformat().
b1c749bb 2099
4aac9b49
PH
2100PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2101 the configuration file to be ":syslog", then the script "guesses" where
2102 the logs files are, rather than using the compiled in default. In our
2103 case the guess is not the same as the compiled default, so the script
2104 suddenly stopped working when I started to use syslog. The patch checks
2105 to see if log_file_path is "". If so, it attempts to read it from exim
2106 with no configuration file to get the compiled in version, before it
2107 falls back to the previous guessing code."
2108
294520c8
TK
2109TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2110 implementing BATV in an Exim configuration. See NewStuff for the gory
2111 details.
2112
5bd022fe
PH
2113PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2114 Makefile that are specific to HP-UX.
2115
90e9ce59
PH
2116PH/18 If the "use_postmaster" option was set for a recipient callout together
2117 with the "random" option, the postmaster address was used as the MAIL
2118 FROM address for the random test, but not for the subsequent recipient
2119 test. It is now used for both.
2120
5ea81592
PH
2121PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2122 patch removes a few documentation additions to RFC 3028, because the
2123 latest draft now contains them. It adds the new en;ascii-case comparator
2124 and a new error check for 8bit text in MIME parts. Comparator and
2125 require names are now matched exactly. I enabled the subaddress
2126 extension, but it is not well tested yet (read: it works for me)."
2127
c6c2dc1d
PH
2128PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2129 rework some of the code of TK/09 above to avoid the hardwired use of
2130 "%lld" and "long long". Replaced the call to snprintf() with a call to
2131 string_vformat().
2132
fffffe4c
PH
2133PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2134 records point to non-existent hosts", "retry timeout exceeded", and
2135 "retry time not reached for any host after a long failure period".
ca02eafb 2136
9a26b6b2
PH
2137PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2138 experimental DomainKeys support:
2139
2140 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2141 (2) On an error such as an illegally used "control", the wrong name for
2142 the control was given.
2143
2144 These problems did NOT occur unless DomainKeys support was compiled.
2145
4aee0225
PH
2146PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2147
32d668a5
PH
2148PH/24 Added ${if match_ip condition.
2149
8187c3f3
PH
2150PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2151 databases so that it will be absolutely obvious if a crash occurs in the
2152 DB library. This is a regular occurrence (often caused by mis-matched
2153 db.h files).
2154
ff790e47 2155PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2156 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2157 picked up on a user's system that detects such things. There doesn't seem
2158 to be a gcc warning option for this - only an attribute that has to be
2159 put on the function's prototype. It seems that in Fedora Core 4 they have
2160 set this on a number of new functions. No doubt there will be more in due
2161 course.
ff790e47 2162
5417f6d1
PH
2163PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2164 specify a transport. However, if an address that was verified by such a
2165 router was the subject of a callout, Exim crashed because it tried to
2166 read the rcpt_include_affixes from the non-existent transport. Now it
2167 just assumes that the setting of that option is false. This bug was
2168 introduced by 4.51/PH/31.
2169
59cf8544
PH
2170PH/28 Changed -d+all to exclude +memory, because that information is very
2171 rarely of interest, but it makes the output a lot bigger. People tend to
2172 do -d+all out of habit.
2173
e7ad8a65
PH
2174PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2175 code in os-type was giving problems when libc.so lives in lib64, like on
2176 x86_64 Fedora Core.
2177
ade42478
PH
2178PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2179 aren't the modern standard, and it seems that some systems' include files
2180 don't always have them. Exim was already checking for some of the newer
2181 ones like T_AAAA, and defining it itself. I've added checks for all the
2182 record types that Exim uses.
2183
182ad5cf
PH
2184PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2185 not automatically generating a new one, as it is supposed to. This
2186 prevented TLS from working. If the file did exist, but contained invalid
2187 data, a new version was generated, as expected. It was only the case of a
2188 non-existent file that was broken.
2189
b0d9fc80
TK
2190TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2191 with a change in libdomainkeys > 0.64.
2192
2193TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2194 from DNS. If the selector record carries the flag, it now has
2195 precedence over the domain-wide flag.
2196
2197TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2198
47c7a64a
PH
2199PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2200 the use of a port name that isn't defined in /etc/services) occurred, the
2201 message was deferred as in a normal delivery, and thus remained on the
2202 spool, instead of being failed because of the mua_wrapper setting. This
2203 is now fixed, and I tidied up some of the mua_wrapper messages at the
2204 same time.
2205
a388bce4
SC
2206SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2207 the messages in a hash of arrays rather than using individual hashes.
2208 This is a bit cleaner and results in dramatic memory savings, albeit
2209 at a slight CPU cost.
2210
2211SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2212 as requested by Marc Sherman.
2213
2214SC/10 Eximstats: added histograms for user specified patterns as requested
2215 by Marc Sherman.
2216
0793e4ed
SC
2217SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2218
c58b88df
PH
2219PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2220 fopen() in the content-scanning modules that did not already have it.
2221
e7ad8a65 2222
7982096b
PH
2223Exim version 4.51
2224-----------------
2225
1a46a8c5
PH
2226TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2227 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2228
2f079f46 2229TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2230
2231TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2232
2233PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2234 to test Sieve filters that use "vacation".
2235
2236PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2237 that changes the way the GnuTLS parameters are stored in the cache file.
2238 The new format can be generated externally. For backward compatibility,
2239 if the data in the cache doesn't make sense, Exim assumes it has read an
2240 old-format file, and it generates new data and writes a new file. This
2241 means that you can't go back to an older release without removing the
2242 file.
2243
2244PH/03 A redirect router that has both "unseen" and "one_time" set does not
2245 work if there are any delivery delays because "one_time" forces the
2246 parent to be marked "delivered", so its unseen clone is never tried
2247 again. For this reason, Exim now forbids the simultaneous setting of
2248 these two options.
2249
2250PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2251 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2252 entry if you want to know the details. The fix, however, neglected to
2253 consider the case when local delivery batching is involved. The test for
2254 "previously delivered" was not happening when checking to see if an
2255 address could be batched with a previous (undelivered) one; under
2256 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2257 address.
1a46a8c5
PH
2258
2259PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2260 in its include files, and this causes problems building Exim.
2261
2262PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2263 header_syntax) but Exim was just ignoring anything given after a slash.
2264 In particular, this caused confusion with an attempt to use "verify =
2265 reverse_host_lookup/defer_ok". An error is now given when options are
2266 supplied for verify items that do not have them. (Maybe reverse_host_
2267 lookup should have a defer_ok option, but that's a different point.)
2268
2269PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2270 defined by RFC 821) to 2048, because there were problems with some AUTH
2271 commands, and RFC 1869 says the size should be increased for extended
2272 SMTP commands that take arguments.
2273
2274PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2275 Finch).
2276
2277PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2278 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2279
49c2d5ea
PH
2280PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2281 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2282 whatever). Otherwise the password may appear in the log. Following change
2283 PH/42 below, there is no longer a chance of it appearing in a bounce
2284 message.
49c2d5ea 2285
bf759a8b
PH
2286PH/11 Installed exipick version 20050225.0 from John Jetmore.
2287
83364d30
PH
2288PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2289 of its addresses was ever tried. (Bugzilla bug #2.)
2290
7999bbd7
PH
2291PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2292 the result incorrectly in the debug output. (It correctly added a newline
2293 to what was transported.)
2294
7dbf77c9
PH
2295TF/01 Added $received_time.
2296
74e0617f
PH
2297PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2298 commented out examples of how to interface to a virus scanner and to
2299 SpamAssassin. Also added commented examples of av_scanner and
2300 spamd_address settings.
2301
2f079f46
PH
2302PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2303 and controls are allowed in which ACLs. There were a couple of minor
2304 errors. Some of the entries in the conditions table (which is a table of
2305 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2306 negation of where the condition IS allowed.
2307
8c841523
PH
2308PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2309
7766a4f0
PH
2310PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2311 header file does not have a version number, so I've had to invent a new
2312 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2313 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2314 radiusclient), but it was contributed by a Radius user.
2315
8b417f2c
PH
2316PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2317 files or directories, for OpenSSL.
2318
901f42cb
PH
2319PH/19 When an Exim process that is running as root has to create an Exim log
2320 file, it does so in a subprocess that runs as exim:exim so as to get the
2321 ownership right at creation (otherwise, other Exim processes might see
2322 the file with the wrong ownership). There was no test for failure of this
2323 fork() call, which would lead to the process getting stuck as it waited
2324 for a non-existent subprocess. Forks do occasionally fail when resources
2325 run out. I reviewed all the other calls to fork(); they all seem to check
2326 for failure.
2327
f9b9210e
PH
2328PH/20 When checking for unexpected SMTP input at connect time (before writing
2329 the banner), Exim was not dealing correctly with a non-positive return
2330 from the read() function. If the client had disconnected by this time,
2331 the result was a log entry for a synchronization error with an empty
2332 string after "input=" when read() returned zero. If read() returned -1
2333 (an event I could not check), uninitialized data bytes were printed.
2334 There were reports of junk text (parts of files, etc) appearing after
2335 "input=".
2336
54cdb463
PH
2337PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2338
cf00dad6
PH
2339PH/22 Added support for macro redefinition, and (re)definition in between
2340 driver and ACL definitions.
2341
acb1b346
PH
2342PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2343 forgetting to use the resulting value; it was using the unexpanded value.
2344
c5ddb310
PH
2345PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2346 hadn't been configured. The fix is from Juergen Kreileder, who
2347 understands it better than I do:
2348
2349 "Here's what I see happening with three configured cyrus_sasl
2350 authenticators configured (plain, login, cram-md5):
2351
2352 On startup auth_cyrus_sasl_init() gets called for each of these.
2353 This means three calls to sasl_listmech() without a specified mech_list.
2354 => SASL tests which mechs of all available mechs actually work
2355 => three warnings about OTP not working
2356 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2357
2358 With the patch, sasl_listmech() also gets called three times. But now
2359 SASL's mech_list option is set to the server_mech specified in the the
2360 authenticator. Or in other words, the answer from sasl_listmech()
2361 gets limited to just the mech you're testing for (which is different
2362 for each call.)
2363 => the return list contains just 'plain' or 'login', 'cram-md5' or
2364 nothing depending on the value of ob->server_mech.
2365
2366 I've just tested the patch: Authentication still works fine,
2367 unavailable mechs specified in the exim configuration are still
2368 caught, and the auth.log warnings about OTP are gone."
2369
31619da6
PH
2370PH/25 When debugging is enabled, the contents of the command line are added
2371 to the debugging output, even when log_selector=+arguments is not
2372 specified.
2373
bebaf0fc
PH
2374PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2375 answer is "GNU", and only if the return is "GNU/something" is the answer
2376 "Linux".
2377
475fe28a
PH
2378PH/27 $acl_verify_message is now set immediately after the failure of a
2379 verification in an ACL, and so is available in subsequent modifiers. In
2380 particular, the message can be preserved by coding like this:
2381
2382 warn !verify = sender
2383 set acl_m0 = $acl_verify_message
2384
2385 Previously, $acl_verify_message was set only while expanding "message"
2386 and "log_message" when a very denied access.
2387
7e8bec7a
PH
2388PH/28 Modified OS/os.c-Linux with
2389
2390 -#ifndef OS_LOAD_AVERAGE
2391 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2392
2393 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2394 nomenclature these days.)
2395
e4a89c47
PH
2396PH/29 Installed patch from the Sieve maintainer that adds the options
2397 sieve_useraddress and sieve_subaddress to the redirect router.
2398
5ca2a9a1
PH
2399PH/30 In these circumstances:
2400 . Two addresses routed to the same list of hosts;
2401 . First host does not offer TLS;
2402 . First host accepts first address;
2403 . First host gives temporary error to second address;
2404 . Second host offers TLS and a TLS session is established;
2405 . Second host accepts second address.
2406 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2407 and peerdn, if requested) that were in fact used only for the second
2408 address.
7e8bec7a 2409
c688b954
PH
2410PH/31 When doing a callout as part of verifying an address, Exim was not paying
2411 attention to any local part prefix or suffix that was matched by the
2412 router that accepted the address. It now behaves in the same way as it
2413 does for delivery: the affixes are removed from the local part unless
2414 rcpt_include_affixes is set on the transport.
2415
fed77020
PH
2416PH/32 Add the sender address, as F=<...>, to the log line when logging a
2417 timeout during the DATA phase of an incoming message.
2418
7fe1560f
PH
2419PH/33 Sieve envelope tests were broken for match types other than :is. I have
2420 applied a patch sanctioned by the Sieve maintainer.
c688b954 2421
ebb6e6d5
PH
2422PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2423 the uid or gid is negative. A case of a negative gid caused this to be
2424 noticed. The fix allows for either to be negative.
2425
9c4e8f60
PH
2426PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2427 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2428 overlooked.
2429
2430PH/36 The change PH/12 above was broken. Fixed it.
2431
d7174846
PH
2432PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2433 the grounds that routing the same address twice would always produce the
2434 same answer. This might have been true once, but it is certainly no
2435 longer true now. Routing a child address may depend on the previous
2436 routing that produced that child. Some complicated redirection strategies
2437 went wrong when messages had multiple recipients, and made Exim's
2438 behaviour dependent on the order in which the addresses were given.
2439
2440 I have moved the duplicate checking until after the routing is complete.
2441 Exim scans the addresses that are assigned to local and remote
2442 transports, and removes any duplicates. This means that more work will be
2443 done, as duplicates will always all be routed, but duplicates are
2444 presumably rare, so I don't expect this is of any significance.
2445
2446 For deliveries to pipes, files, and autoreplies, the duplicate checking
2447 still happens during the routing process, since they are not going to be
2448 routed further.
2449
cfe75fc3
PH
2450PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2451 It corrects a timeout issue with spamd. This is Ian's comment: "The
2452 background is that sometimes spamd either never reads data from a
2453 connection it has accepted, or it never writes response data. The exiscan
2454 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2455 blindly assumes that writes won't block so it may never time out."
2456
be22d70e
PH
2457PH/39 Allow G after quota size as well as K and M.
2458
0612b098
PH
2459PH/40 The value set for $authenticated_id in an authenticator may not contain
2460 binary zeroes or newlines because the value is written to log lines and
2461 to spool files. There was no check on this. Now the value is run through
2462 the string_printing() function so that such characters are converted to
2463 printable escape sequences.
2464
2e0c1448
PH
2465PH/41 $message_linecount is a new variable that contains the total number of
2466 lines in the message. Compare $body_linecount, which is the count for the
2467 body only.
2468
447d236c
PH
2469PH/42 Exim no longer gives details of delivery errors for specific addresses in
2470 bounce and delay warning messages, except in certain special cases, which
2471 are as follows:
2472
2473 (a) An SMTP error message from a remote host;
2474 (b) A message specified in a :fail: redirection;
2475 (c) A message specified in a "fail" command in a system filter;
2476 (d) A message specified in a FAIL return from the queryprogram router;
2477 (e) A message specified by the cannot_route_message router option.
2478
2479 In these cases only, Exim does include the error details in bounce and
2480 warning messages. There are also a few cases where bland messages such
2481 as "unrouteable address" or "local delivery error" are given.
2482
d20976dc
PH
2483PH/43 $value is now also set for the "else" part of a ${run expansion.
2484
f656d135
PH
2485PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2486 being worked on, but at least Exim now implements the latest version to
2487 play with."
2488
2e2a30b4
PH
2489PH/45 In a pipe transport, although a timeout while waiting for the pipe
2490 process to complete was treated as a delivery failure, a timeout while
2491 writing the message to the pipe was logged, but erroneously treated as a
2492 successful delivery. Such timeouts include transport filter timeouts. For
2493 consistency with the overall process timeout, these timeouts are now
2494 treated as errors, giving rise to delivery failures by default. However,
2495 there is now a new Boolean option for the pipe transport called
2496 timeout_defer, which, if set TRUE, converts the failures into defers for
2497 both kinds of timeout. A transport filter timeout is now identified in
2498 the log output.
2499
9176e9f0
PH
2500PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2501 systems where "make" and "gmake" are different, calling "gmake" at top
2502 level broke things. I've arranged for the value of $(MAKE) to be passed
2503 from the Makefile to this script so that it can call the same version of
2504 "make".
2505
7982096b 2506
bbe902f0
PH
2507A note about Exim versions 4.44 and 4.50
2508----------------------------------------
2509
2510Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2511changes of various kinds. As a consequence, a big documentation update was
2512needed. This delayed the release for rather longer than seemed good, especially
2513in the light of a couple of (minor) security issues. Therefore, the changes
2514that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2515release. So 4.44 and 4.50 are in effect two different branches that both start
2516from 4.43.
2517
2518I have left the 4.50 change log unchanged; it contains all the changes since
25194.43. The change log for 4.44 is below; many of its items are identical to
2520those for 4.50. This seems to be the most sensible way to preserve the
2521historical information.
2522
2523
f7b63901 2524Exim version 4.50
495ae4b0
PH
2525-----------------
2526
5fe762f6
PH
2527 1. Minor wording change to the doc/README.SIEVE file.
2528
139059f6 2529 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2530 computation of the current number of files was incorrect.
495ae4b0 2531
7086e875
PH
2532 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2533 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2534 place.
2535
35af9f61
PH
2536 4. Give more explanation in the error message when the command for a transport
2537 filter fails to execute.
2538
b668c215
PH
2539 5. There are several places where Exim runs a non-Exim command in a
2540 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2541 was being done only for the command run by the queryprogram router. It is
2542 now done for all such subprocesses. The other cases are: ${run, transport
2543 filters, and the commands run by the lmtp and pipe transports.
2544
a494b1e1
PH
2545 6. Added CONFIGURE_GROUP build-time option.
2546
2547 7. Some older OS have a limit of 256 on the maximum number of file
2548 descriptors. Exim was using setrlimit() to set 1000 as a large value
2549 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2550 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2551
c5fcb476
PH
2552 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2553 was an oversight, and furthermore, ever since the addition of extra
2554 controls (e.g. 4.43/32), the checks on when to allow different forms of
2555 "control" were broken. There should now be diagnostics for all cases when a
2556 control that does not make sense is encountered.
2557
69358f02
PH
2558 9. Added the /retain_sender option to "control=submission".
2559
5be20824
PH
256010. $recipients is now available in the predata ACL (oversight).
2561
eb2c0248
PH
256211. Tidy the search cache before the fork to do a delivery from a message
2563 received from the command line. Otherwise the child will trigger a lookup
2564 failure and thereby defer the delivery if it tries to use (for example) a
2565 cached ldap connection that the parent has called unbind on.
2566
2a3eea10
PH
256712. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2568 of $address_data from the recipient verification was clobbered by the
2569 sender verification.
2570
257113. The value of address_data from a sender verification is now available in
2572 $sender_address_data in subsequent conditions in the ACL statement.
2573
23c7ff99
PH
257414. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2575
4deaf07d
PH
257615. Added a new option "connect=<time>" to callout options, to set a different
2577 connection timeout.
2578
926e1192
PH
257916. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2580 was its contents. (It was OK if the option was not defined at all.)
2581
650edc6f
PH
258217. A "Completed" log line is now written for messages that are removed from
2583 the spool by the -Mrm option.
2584
2c7db3f5
PH
258518. New variables $sender_verify_failure and $recipient_verify_failure contain
2586 information about exactly what failed.
2587
3d235903
PH
258819. Added -dd to debug only the daemon process.
2589
7c7ad977
PH
259020. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2591 handles timeouts, both on the server side and network timeouts. Renamed the
2592 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2593
981756db
PH
259421. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2595 It is now set to "smtps".
2596
d4eb88df
PH
259722. $host_address is now set to the target address during the checking of
2598 ignore_target_hosts.
2599
260023. When checking ignore_target_hosts for an ipliteral router, no host name was
2601 being passed; this would have caused $sender_host_name to have been used if
2602 matching the list had actually called for a host name (not very likely,
2603 since this list is usually IP addresses). A host name is now passed as
2604 "[x.x.x.x]".
2605
7d468ab8
PH
260624. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2607 code that specifies a non-restarting handler (typically sigaction() in
2608 modern systems) in an attempt to fix a rare and obscure crash bug.
2609
261025. Narrowed the window for a race in the daemon that could cause it to ignore
2611 SIGCHLD signals. This is not a major problem, because they are used only to
2612 wake it up if nothing else does.
2613
62c0818f
PH
261426. A malformed maildirsize file could cause Exim to calculate negative values
2615 for the mailbox size or file count. Odd effects could occur as a result.
2616 The maildirsize information is now recalculated if the size or filecount
2617 end up negative.
2618
26034054
PH
261927. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2620 support for a long time. Removed HAVE_SYS_VFS_H.
2621
af66f652
PH
262228. Installed the latest version of exipick from John Jetmore.
2623
90af77f4
PH
262429. In an address list, if the pattern was not a regular expression, an empty
2625 subject address (from a bounce message) matched only if the pattern was an
2626 empty string. Non-empty patterns were not even tested. This was the wrong
2627 because it is perfectly reasonable to use an empty address as part of a
2628 database query. An empty address is now tested by patterns that are
2629 lookups. However, all the other forms of pattern expect the subject to
2630 contain a local part and a domain, and therefore, for them, an empty
2631 address still always fails if the pattern is not itself empty.
2632
d8ef3577
PH
263330. Exim went into a mad DNS loop when attempting to do a callout where the
2634 host was specified on an smtp transport, and looking it up yielded more
2635 than one IP address.
2636
5cb8cbc6
PH
263731. Re-factored the code for checking spool and log partition space into a
2638 function that finds that data and another that does the check. The former
2639 is then used to implement four new variables: $spool_space, $log_space,
2640 $spool_inodes, and $log_inodes.
2641
14702f5b
PH
264232. The RFC2047 encoding function was originally intended for short strings
2643 such as real names; it was not keeping to the 75-character limit for
2644 encoded words that the RFC imposes. It now respects the limit, and
2645 generates multiple encoded words if necessary. To be on the safe side, I
2646 have increased the buffer size for the ${rfc2047: expansion operator from
2647 1024 to 2048 bytes.
2648
063b1e99
PH
264933. It is now permitted to omit both strings after an "if" condition; if the
2650 condition is true, the result is "true". As before, when the second string
2651 is omitted, a false condition yields an empty string. This makes it less
2652 cumbersome to write custom ACL and router conditions.
2653
652e1b65
PH
265434. Failure to deliver a bounce message always caused it to be frozen, even if
2655 there was an errors_to setting on the router. The errors_to setting is now
2656 respected.
2657
6f0c9a4f
PH
265835. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2659 canonical form (fully expanded) before being placed in
2660 $sender_host_address.
2661
33397d19
PH
266236. The table in the code that translates DNS record types into text (T_A to
2663 "A" for instance) was missing entries for NS and CNAME. It is just possible
2664 that this could have caused confusion if both these types were looked up
2665 for the same domain, because the text type is used as part of Exim's
2666 per-process caching. But the chance of anyone hitting this buglet seems
2667 very small.
2668
7bb56e1f
PH
266937. The dnsdb lookup has been extended in a number of ways.
2670
2671 (1) There is a new type, "zns", which walks up the domain tree until it
2672 finds some nameserver records. It should be used with care.
2673
ea3bc19b
PH
2674 (2) There is a new type, "mxh", which is like "mx" except that it returns
2675 just the host names, not the priorities.
2676
2677 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2678 looked up. The behaviour when one of the lookups defers can be
2679 controlled by a keyword.
7bb56e1f 2680
ea3bc19b 2681 (4) It is now possible to specify the separator character for use when
7bb56e1f 2682 multiple records are returned.
33397d19 2683
0bcb2a0e
PH
268438. The dnslists ACL condition has been extended: it is now possible to supply
2685 a list of IP addresses and/or domains to be looked up in a particular DNS
2686 domain.
2687
2ac0e484
PH
268839. Added log_selector=+queue_time_overall.
2689
4e1fde53
PH
269040. When running the queue in the test harness, wait just a tad after forking a
2691 delivery process, to get repeatability of debugging output.
2692
de365ded
PH
269341. Include certificate and key file names in error message when GnuTLS fails
2694 to set them up, because the GnuTLS error message doesn't include the name
2695 of the failing file when there is a problem reading it.
2696
f05da2e8
PH
269742. Allow both -bf and -bF in the same test run.
2698
d6453af2
PH
269943. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2700
f7b63901
PH
270144. The "Exiscan patch" is now merged into the mainline Exim source.
2702
270345. Sometimes the final signoff response after QUIT could fail to get
2704 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2705 < 0 before doing a fflush(). This bug looks as though it goes back to the
2706 introduction of TLS in release 3.20, but "sometimes" must have been rare
2707 because the tests only now provoked it.
2708
a444213a
PH
270946. Reset the locale to "C" after calling embedded Perl, in case it was changed
2710 (this can affect the format of dates).
2711
0ec020ea
PH
271247. exim_tidydb, when checking for the continued existence of a message for
2713 which it has found a message-specific retry record, was not finding
2714 messages that were in split spool directories. Consequently, it was
2715 deleting retry records that should have stayed in existence.
2716
b1206957
PH
271748. Steve fixed some bugs in eximstats.
2718
271949. The SPA authentication driver was not abandoning authentication and moving
2720 on to the next authenticator when an expansion was forced to fail,
2721 contradicting the general specification for all authenticators. Instead it
2722 was generating a temporary error. It now behaves as specified.
2723
26dd5a95
PH
272450. The default ordering of permitted cipher suites for GnuTLS was pessimal
2725 (the order specifies the preference for clients). The order is now AES256,
2726 AES128, 3DES, ARCFOUR128.
2727
343b2385
PH
272851. Small patch to Sieve code - explicitly set From: when generating an
2729 autoreply.
2730
1c5466b9
PH
273152. Exim crashed if a remote delivery caused a very long error message to be
2732 recorded - for instance if somebody sent an entire SpamAssassin report back
2733 as a large number of 550 error lines. This bug was coincidentally fixed by
2734 increasing the size of one of Exim's internal buffers (big_buffer) that
2735 happened as part of the Exiscan merge. However, to be on the safe side, I
2736 have made the code more robust (and fixed the comments that describe what
2737 is going on).
2738
55ee9ee3
PH
273953. Now that there can be additional text after "Completed" in log lines (if
2740 the queue_time_overall log selector is set), a one-byte patch to exigrep
2741 was needed to allow it to recognize "Completed" as not the last thing in
2742 the line.
2743
d38f8232
PH
274454. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2745 patch that reportedly fixes this has been added. I am not expert enough to
2746 create a test for it. This is what the patch creator wrote:
2747
2748 "I found a little strange behaviour of ldap code when working with
2749 Windows 2003 AD Domain, where users was placed in more than one
2750 Organization Units. When I tried to give exim partial DN, the exit code
2751 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2752 But simultaneously result of request was absolutely normal ldap result,
2753 so I produce this patch..."
2754
3295e65b
PH
2755 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2756 REFERENCE, so I have modified the code to exclude the patch when that macro
2757 is not defined.
2758
7102e136
PH
275955. Some experimental protocols are using DNS PTR records for new purposes. The
2760 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2761 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2762 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2763 CAN-2005-0021
7102e136 2764
3ca0ba97
PH
276556. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2766
c2bcbe20
PH
276757. Double the size of the debug message buffer (to 2048) so that more of very
2768 long debug lines gets shown.
2769
18ce445d
PH
277058. The exicyclog utility now does better if the number of log files to keep
2771 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2772
1f5b4c3d
PH
277359. Two changes related to the smtp_active_hostname option:
2774
2775 (1) $smtp_active_hostname is now available as a variable.
2776 (2) The default for smtp_banner uses $smtp_active_hostname instead
2777 of $primary_hostname.
2778
b975ba52
PH
277960. The host_aton() function is supposed to be passed a string that is known
2780 to be a valid IP address. However, in the case of IPv6 addresses, it was
2781 not checking this. This is a hostage to fortune. Exim now panics and dies
2782 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2783 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2784 components; fortuitously, this particular loophole had already been fixed
2785 by change 4.50/55 above.
2786
2787 If there are any other similar loopholes, the new check in host_aton()
2788 itself should stop them being exploited. The report I received stated that
2789 data on the command line could provoke the exploit when Exim was running as
2790 exim, but did not say which command line option was involved. All I could
2791 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2792 running as the user.
ea3a6f44 2793 CAN-2005-0021
85b87bc2
PH
2794
279561. There was a buffer overflow vulnerability in the SPA authentication code
2796 (which came originally from the Samba project). I have added a test to the
2797 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2798 CAN-2005-0022
b975ba52 2799
17ffcae7
PH
280062. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2801 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2802
d95f9fdb
PH
280363. The daemon start-up calls getloadavg() while still root for those OS that
2804 need the first call to be done as root, but it missed one case: when
2805 deliver_queue_load_max is set with deliver_drop_privilege. This is
2806 necessary for the benefit of the queue runner, because there is no re-exec
2807 when deliver_drop_privilege is set.
2808
86b8287f
PH
280964. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2810 This has been fixed.
2811
60dc5e56
PH
281265. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2813 was in use, was not putting the data itself into the right store pool;
2814 consequently, it could be overwritten for a subsequent message in the same
2815 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2816 the caching.)
2817
533244af
PH
281866. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2819
a5a28604
PH
282067. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2821 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2822 the function were treating the return as a boolean value, which happened to
2823 work because 0=false and not-0=true, but is not correct code.
2824
7e634d24
PH
282568. The host_aton() function was not handling scoped IPv6 addresses (those
2826 with, for example, "%eth0" on the end) correctly.
2827
3e11c26b
PH
282869. Fixed some compiler warnings in acl.c for the bitmaps specified with
2829 negated items (that is, ~something) in unsigned ints. Some compilers
2830 apparently mutter when there is no cast.
2831
6729cf78
PH
283270. If an address verification called from an ACL failed, and did not produce a
2833 user-specific message (i.e. there was only a "system" message), nothing was
2834 put in $acl_verify_message. In this situation, it now puts the system
2835 message there.
2836
00f00ca5
PH
283771. Change 4.23/11 added synchronization checking at the start of an SMTP
2838 session; change 4.31/43 added the unwanted input to the log line - except
2839 that it did not do this in the start of session case. It now does.
2840
c9bdd01c
PH
284172. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2842 This is wrong and can cause the other end to generate a synchronization
2843 error if it is another Exim or anything else that does the synchronization
2844 check. A QUIT command is no longer sent after a timeout.
2845
d43194df
PH
284673. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2847 during host lookups.
2848
fe5b5d0b
PH
284974. The defer_ok option of callout verification was not working if it was used
2850 when verifying addresses in header lines, that is, for this case:
2851
2852 verify = header_sender/callout=defer_ok
2853
76a2d7ba
PH
285475. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2855 those file descriptors could be used for SMTP connections. If anything
2856 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2857 could be sent to the SMTP client, causing chaos. The daemon now opens
2858 stdin, stdout, and stderr to /dev/null when it puts itself into the
2859 background.
2860
286176. Arrange for output from Perl's "warn" command to be written to Exim's main
2862 log by default. The user can override this with suitable Perl magic.
2863
04f7d5b9
PH
286477. The use of log_message on a "discard" ACL verb, which is supposed to add to
2865 the log message when discard triggers, was not working for the DATA ACL or
2866 for the non-SMTP ACL.
2867
bc60667e
PH
286878. Error message wording change in sieve.c.
2869
bb6e88ff
PH
287079. If smtp_accept_max_per_host was set, the number of connections could be
2871 restricted to fewer than expected, because the daemon was trying to set up
2872 a new connection before checking whether the processes handling previous
2873 connections had finished. The check for completed processes is now done
2874 earlier. On busy systems, this bug wouldn't be noticed because something
2875 else would have woken the daemon, and it would have reaped the completed
2876 process earlier.
2877
1e70f85b
PH
287880. If a message was submitted locally by a user whose login name contained one
2879 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2880 It caused a spool format error. I have fixed the spool reading code. A
2881 related problem was that the "from" clause in the Received: line became
2882 illegal because of the space(s). It is now covered by ${quote_local_part.
2883
288481. Included the latest eximstats from Steve (adds average sizes to HTML Top
2885 tables).
2886
4e01f9d6
PH
288782. Updated OS/Makefile-AIX as per message from Mike Meredith.
2888
1ee1cef2
PH
288983. Patch from Sieve maintainer to fix unterminated string problem in
2890 "vacation" handling.
2891
6e2b4ccc
PH
289284. Some minor changes to the Linux configuration files to help with other
2893 OS variants using glibc.
2894
8e669ac1
PH
289585. One more patch for Sieve to update vacation handling to latest spec.
2896
495ae4b0 2897
bbe902f0
PH
2898----------------------------------------------------
2899See the note above about the 4.44 and 4.50 releases.
2900----------------------------------------------------
2901
2902
2903Exim version 4.44
2904-----------------
2905
2906 1. Change 4.43/35 introduced a bug that caused file counts to be
2907 incorrectly computed when quota_filecount was set in an appendfile
2908 transport
2909
2910 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2911 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2912 place.
2913
2914 3. Give more explanation in the error message when the command for a transport
2915 filter fails to execute.
2916
2917 4. There are several places where Exim runs a non-Exim command in a
2918 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2919 was being done only for the command run by the queryprogram router. It is
2920 now done for all such subprocesses. The other cases are: ${run, transport
2921 filters, and the commands run by the lmtp and pipe transports.
2922
2923 5. Some older OS have a limit of 256 on the maximum number of file
2924 descriptors. Exim was using setrlimit() to set 1000 as a large value
2925 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2926 systems. I've change it so that if it can't get 1000, it tries for 256.
2927
2928 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2929 was an oversight, and furthermore, ever since the addition of extra
2930 controls (e.g. 4.43/32), the checks on when to allow different forms of
2931 "control" were broken. There should now be diagnostics for all cases when a
2932 control that does not make sense is encountered.
2933
2934 7. $recipients is now available in the predata ACL (oversight).
2935
2936 8. Tidy the search cache before the fork to do a delivery from a message
2937 received from the command line. Otherwise the child will trigger a lookup
2938 failure and thereby defer the delivery if it tries to use (for example) a
2939 cached ldap connection that the parent has called unbind on.
2940
2941 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2942 of $address_data from the recipient verification was clobbered by the
2943 sender verification.
2944
294510. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2946 was its contents. (It was OK if the option was not defined at all.)
2947
294811. A "Completed" log line is now written for messages that are removed from
2949 the spool by the -Mrm option.
2950
295112. $host_address is now set to the target address during the checking of
2952 ignore_target_hosts.
2953
295413. When checking ignore_target_hosts for an ipliteral router, no host name was
2955 being passed; this would have caused $sender_host_name to have been used if
2956 matching the list had actually called for a host name (not very likely,
2957 since this list is usually IP addresses). A host name is now passed as
2958 "[x.x.x.x]".
2959
296014. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2961 code that specifies a non-restarting handler (typically sigaction() in
2962 modern systems) in an attempt to fix a rare and obscure crash bug.
2963
296415. Narrowed the window for a race in the daemon that could cause it to ignore
2965 SIGCHLD signals. This is not a major problem, because they are used only to
2966 wake it up if nothing else does.
2967
296816. A malformed maildirsize file could cause Exim to calculate negative values
2969 for the mailbox size or file count. Odd effects could occur as a result.
2970 The maildirsize information is now recalculated if the size or filecount
2971 end up negative.
2972
297317. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2974 support for a long time. Removed HAVE_SYS_VFS_H.
2975
ea3a6f44 297618. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2977
297819. Allow an empty sender to be matched against a lookup in an address list.
2979 Previously the only cases considered were a regular expression, or an
2980 empty pattern.
2981
298220. Exim went into a mad DNS lookup loop when doing a callout where the
2983 host was specified on the transport, if the DNS lookup yielded more than
2984 one IP address.
2985
ea3a6f44
NM
298621. The RFC2047 encoding function was originally intended for short strings
2987 such as real names; it was not keeping to the 75-character limit for
2988 encoded words that the RFC imposes. It now respects the limit, and
2989 generates multiple encoded words if necessary. To be on the safe side, I
2990 have increased the buffer size for the ${rfc2047: expansion operator from
2991 1024 to 2048 bytes.
bbe902f0 2992
ea3a6f44
NM
299322. Failure to deliver a bounce message always caused it to be frozen, even if
2994 there was an errors_to setting on the router. The errors_to setting is now
2995 respected.
bbe902f0
PH
2996
299723. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2998 canonical form (fully expanded) before being placed in
2999 $sender_host_address.
3000
300124. Updated eximstats to version 1.33
3002
ea3a6f44
NM
300325. Include certificate and key file names in error message when GnuTLS fails
3004 to set them up, because the GnuTLS error message doesn't include the name
3005 of the failing file when there is a problem reading it.
bbe902f0
PH
3006
300726. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3008 As per change 25.
bbe902f0 3009
ea3a6f44
NM
301027. Reset the locale to "C" after calling embedded Perl, in case it was changed
3011 (this can affect the format of dates).
bbe902f0 3012
ea3a6f44
NM
301328. exim_tidydb, when checking for the continued existence of a message for
3014 which it has found a message-specific retry record, was not finding
3015 messages that were in split spool directories. Consequently, it was
3016 deleting retry records that should have stayed in existence.
bbe902f0
PH
3017
301829. eximstats updated to version 1.35
3019 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3020 1.35 - bugfix such that pie charts by volume are generated correctly
3021
ea3a6f44
NM
302230. The SPA authentication driver was not abandoning authentication and moving
3023 on to the next authenticator when an expansion was forced to fail,
3024 contradicting the general specification for all authenticators. Instead it
3025 was generating a temporary error. It now behaves as specified.
bbe902f0 3026
ea3a6f44
NM
302731. The default ordering of permitted cipher suites for GnuTLS was pessimal
3028 (the order specifies the preference for clients). The order is now AES256,
3029 AES128, 3DES, ARCFOUR128.
bbe902f0 3030
ea3a6f44
NM
303131. Small patch to Sieve code - explicitly set From: when generating an
3032 autoreply.
bbe902f0 3033
ea3a6f44
NM
303432. Exim crashed if a remote delivery caused a very long error message to be
3035 recorded - for instance if somebody sent an entire SpamAssassin report back
3036 as a large number of 550 error lines. This bug was coincidentally fixed by
3037 increasing the size of one of Exim's internal buffers (big_buffer) that
3038 happened as part of the Exiscan merge. However, to be on the safe side, I
3039 have made the code more robust (and fixed the comments that describe what
3040 is going on).
bbe902f0 3041
ea3a6f44
NM
304233. Some experimental protocols are using DNS PTR records for new purposes. The
3043 keys for these records are domain names, not reversed IP addresses. The
3044 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3045 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3046 CAN-2005-0021
3047
ea3a6f44
NM
304834. The host_aton() function is supposed to be passed a string that is known
3049 to be a valid IP address. However, in the case of IPv6 addresses, it was
3050 not checking this. This is a hostage to fortune. Exim now panics and dies
3051 if the condition is not met. A case was found where this could be provoked
3052 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3053 components; fortuitously, this particular loophole had already been fixed
3054 by change 4.50/55 or 4.44/33 above.
3055
3056 If there are any other similar loopholes, the new check in host_aton()
3057 itself should stop them being exploited. The report I received stated that
3058 data on the command line could provoke the exploit when Exim was running as
3059 exim, but did not say which command line option was involved. All I could
3060 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3061 running as the user.
bbe902f0
PH
3062 CAN-2005-0021
3063
ea3a6f44
NM
306435. There was a buffer overflow vulnerability in the SPA authentication code
3065 (which came originally from the Samba project). I have added a test to the
3066 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3067 CAN-2005-0022
3068
ea3a6f44
NM
306936. The daemon start-up calls getloadavg() while still root for those OS that
3070 need the first call to be done as root, but it missed one case: when
3071 deliver_queue_load_max is set with deliver_drop_privilege. This is
3072 necessary for the benefit of the queue runner, because there is no re-exec
3073 when deliver_drop_privilege is set.
bbe902f0 3074
ea3a6f44
NM
307537. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3076 was in use, was not putting the data itself into the right store pool;
3077 consequently, it could be overwritten for a subsequent message in the same
3078 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3079 the caching.)
bbe902f0 3080
ea3a6f44
NM
308138. Sometimes the final signoff response after QUIT could fail to get
3082 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3083 < 0 before doing a fflush(). This bug looks as though it goes back to the
3084 introduction of TLS in release 3.20, but "sometimes" must have been rare
3085 because the tests only now provoked it.
bbe902f0
PH
3086
3087
495ae4b0
PH
3088Exim version 4.43
3089-----------------
3090
3091 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3092 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3093 Now it returns an integer. A number of calls were still expecting a T/F
3094 return. Fortuitously, in all cases, the tests worked in OK situations,
3095 which is the norm. However, things would have gone wrong on any write
3096 failures on the smtp file descriptor. This function is used when sending
3097 messages over SMTP and also when doing verify callouts.
3098
3099 2. When Exim is called to do synchronous delivery of a locally submitted
3100 message (the -odf or -odi options), it no longer closes stderr before doing
3101 the delivery.
3102
3103 3. Implemented the mua_wrapper option.
3104
3105 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3106
3107 5. Implemented the functions header_remove(), header_testname(),
3108 header_add_at_position(), and receive_remove_recipient(), and exported them
3109 to local_scan().
3110
3111 6. If an ACL "warn" statement specified the addition of headers, Exim already
3112 inserted X-ACL-Warn: at the start if there was no header name. However, it
3113 was not making this test for the second and subsequent header lines if
3114 there were newlines in the string. This meant that an invalid header could
3115 be inserted if Exim was badly configured.
3116
3117 7. Allow an ACL "warn" statement to add header lines at the start or after all
3118 the Received: headers, as well as at the end.
3119
3120 8. Added the rcpt_4xx retry error code.
3121
3122 9. Added postmaster_mailfrom=xxx to callout verification option.
3123
312410. Added mailfrom=xxxx to the callout verification option, for verify=
3125 header_sender only.
3126
312711. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3128 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3129
313012. Inserted some casts to stop certain compilers warning when using pointer
3131 differences as field lengths or precisions in printf-type calls (mostly
3132 affecting debugging statements).
3133
313413. Added optional readline() support for -be (dynamically loaded).
3135
313614. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3137 same clock tick as a message's arrival, so that its received time was the
3138 same as the "first fail" time on the retry record, and that message
3139 remained on the queue past the ultimate address timeout, every queue runner
3140 would try a delivery (because it was past the ultimate address timeout) but
3141 after another failure, the ultimate address timeout, which should have then
3142 bounced the address, did not kick in. This was a "< instead of <=" error;
3143 in most cases the first failure would have been in the next clock tick
3144 after the received time, and all would be well.
3145
314615. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3147 being recognized when the domain list was tested by the match_domain
3148 condition in an expansion string.
3149
315016. Added the ${str2b64: operator.
3151
315217. Exim was always calling setrlimit() to set a large limit for the number of
3153 processes, without checking whether the existing limit was already
3154 adequate. (It did check for the limit on file descriptors.) Furthermore,
3155 errors from getrlimit() and setrlimit() were being ignored. Now they are
3156 logged to the main and panic logs, but Exim does carry on, to try to do its
3157 job under whatever limits there are.
3158
315918. Imported PCRE 5.0.
3160
316119. Trivial typo in log message " temporarily refused connection" (the leading
3162 space).
3163
316420. If the log selector return_path_on_delivery was set and an address was
3165 redirected to /dev/null, the delivery process crashed because it assumed
3166 that a return path would always be set for a "successful" delivery. In this
3167 case, the whole delivery is bypassed as an optimization, and therefore no
3168 return path is set.
3169
317021. Internal re-arrangement: the function for sending a challenge and reading
3171 a response while authentication was assuming a zero-terminated challenge
3172 string. It's now changed to take a pointer and a length, to allow for
3173 binary data in such strings.
3174
317522. Added the cyrus_sasl authenticator (code supplied by MBM).
3176
317723. Exim was not respecting finduser_retries when seeking the login of the
3178 uid under which it was called; it was always trying 10 times. (The default
3179 setting of finduser_retries is zero.) Also, it was sleeping after the final
3180 failure, which is pointless.
3181
318224. Implemented tls_on_connect_ports.
3183
318425. Implemented acl_smtp_predata.
3185
318626. If the domain in control=submission is set empty, Exim assumes that the
3187 authenticated id is a complete email address when it generates From: or
3188 Sender: header lines.
3189
319027. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3191 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3192 chown and chgrp in /bin and hostname in /usr/bin.
3193
319428. Exim was keeping the "process log" file open after each use, just as it
3195 does for the main log. This opens the possibility of it remaining open for
3196 long periods when the USR1 signal hits a daemon. Occasional processlog
3197 errors were reported, that could have been caused by this. Anyway, it seems
3198 much more sensible not to leave this file open at all, so that is what now
3199 happens.
3200
320129. The long-running daemon process does not normally write to the log once it
3202 has entered its main loop, and it closes the log before doing so. This is
3203 so that log files can straightforwardly be renamed and moved. However,
3204 there are a couple of unusual error situations where the daemon does write
3205 log entries, and I had neglected to close the log afterwards.
3206
320730. The text of an SMTP error response that was received during a remote
3208 delivery was being truncated at 512 bytes. This is too short for some of
3209 the long messages that one sometimes sees. I've increased the limit to
3210 1024.
3211
321231. It is now possible to make retry rules that apply only when a message has a
3213 specific sender, in particular, an empty sender.
3214
321532. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3216 it possible to be selective about when SMTP synchronization is enforced.
3217
321833. Added "control = caseful_local_part" and "control = "caselower_local_part".
3219
322032. Implemented hosts_connection_nolog.
3221
322233. Added an ACL for QUIT.
3223
322434. Setting "delay_warning=" to disable warnings was not working; it gave a
3225 syntax error.
3226
322735. Added mailbox_size and mailbox_filecount to appendfile.
3228
322936. Added control = no_multiline_responses to ACLs.
3230
323137. There was a bug in the logic of the code that waits for the clock to tick
3232 in the case where the clock went backwards by a substantial amount such
3233 that the microsecond fraction of "now" was more than the microsecond
3234 fraction of "then" (but the whole seconds number was less).
3235
323638. Added support for the libradius Radius client library this is found on
3237 FreeBSD (previously only the radiusclient library was supported).
3238
3239
3240Exim version 4.42
3241-----------------
3242
3243 1. When certain lookups returned multiple values in the form name=value, the
3244 quoting of the values was not always being done properly. Specifically:
3245 (a) If the value started with a double quote, but contained no whitespace,
3246 it was not quoted.
3247 (b) If the value contained whitespace other than a space character (i.e.
3248 tabs or newlines or carriage returns) it was not quoted.
3249 This fix has been applied to the mysql and pgsql lookups by writing a
3250 separate quoting function and calling it from the lookup code. The fix
3251 should probably also be applied to nisplus, ibase and oracle lookups, but
3252 since I cannot test any of those, I have not disturbed their existing code.
3253
3254 2. A hit in the callout cache for a specific address caused a log line with no
3255 reason for rejecting RCPT. Now it says "Previous (cached) callout
3256 verification failure".
3257
3258 3. There was an off-by-one bug in the queryprogram router. An over-long
3259 return line was truncated at 256 instead of 255 characters, thereby
3260 overflowing its buffer with the terminating zero. As well as fixing this, I
3261 have increased the buffer size to 1024 (and made a note to document this).
3262
3263 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3264 when Exim is waiting for an SMTP response from a remote server, Exim
3265 restarts its select() call on the socket, thereby resetting its timeout.
3266 This is not a problem when such interrupts are rare. Somebody set up a cron
3267 job to run exiwhat every 2 minutes, which is less than the normal select()
3268 timeout (5 or 10 minutes). This meant that the select() timeout never
3269 kicked in because it was always reset. I have fixed this by comparing the
3270 time when an interrupt arrives with the time at the start of the first call
3271 to select(). If more time than the timeout has elapsed, the interrupt is
3272 treated as a timeout.
3273
3274 5. Some internal re-factoring in preparation for the addition of Sieve
3275 extensions (by MH). In particular, the "personal" test is moved to a
3276 separate function, and given an option for scanning Cc: and Bcc: (which is
3277 not set for Exim filters).
3278
3279 6. When Exim created an email address using the login of the caller as the
3280 local part (e.g. when creating a From: or Sender: header line), it was not
3281 quoting the local part when it contained special characters such as @.
3282
3283 7. Installed new OpenBSD configuration files.
3284
3285 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3286 try to make them clearer.
3287
3288 9. Callout options, other than the timeout value, were being ignored when
3289 verifying sender addresses in header lines. For example, when using
3290
3291 verify = header_sender/callout=no_cache
3292
3293 the cache was (incorrectly) being used.
3294
329510. Added a missing instance of ${EXE} to the exim_install script; this affects
3296 only the Cygwin environment.
3297
329811. When return_path_on_delivery was set as a log selector, if different remote
3299 addresses in the same message used different return paths and parallel
3300 remote delivery occurred, the wrong values would sometimes be logged.
3301 (Whenever a remote delivery process finished, the return path value from
3302 the most recently started remote delivery process was logged.)
3303
330412. RFC 3848 specifies standard names for the "with" phrase in Received: header
3305 lines when AUTH and/or TLS are in use. This is the "received protocol"
3306 field. Exim used to use "asmtp" for authenticated SMTP, without any
3307 indication (in the protocol name) for TLS use. Now it follows the RFC and
3308 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3309 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3310 names appear in log lines as well as in Received: header lines.
3311
331213. Installed MH's patches for Sieve to add the "copy" and "vacation"
3313 extensions, and comparison tests, and to fix some bugs.
3314
331514. Changes to the "personal" filter test:
3316
3317 (1) The test was buggy in that it was just doing the equivalent of
3318 "contains" tests on header lines. For example, if a user's address was
3319 anne@some.where, the "personal" test would incorrectly be true for
3320
3321 To: susanne@some.where
3322
3323 This test is now done by extracting each address from the header in turn,
3324 and checking the entire address. Other tests that are part of "personal"
3325 are now done using regular expressions (for example, to check local parts
3326 of addresses in From: header lines).
3327
3328 (2) The list of non-personal local parts in From: addresses has been
3329 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3330 taken from the Sieve specification recommendations.
3331
3332 (3) If the message contains any header line starting with "List-" it is
3333 treated as non-personal.
3334
3335 (4) The test for "circular" in the Subject: header line has been removed
3336 because it now seems ill-conceived.
3337
333815. Minor typos in src/EDITME comments corrected.
3339
334016. Installed latest exipick from John Jetmore.
3341
334217. If headers_add on a router specified a text string that was too long for
3343 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3344 of string_sprintf() is now avoided.
3345
334618. $message_body_size was not set (it was always zero) when running the DATA
3347 ACL and the local_scan() function.
3348
334919. For the "mail" command in an Exim filter, no default was being set for
3350 the once_repeat time, causing a random time value to be used if "once" was
3351 specified. (If the value happened to be <= 0, no repeat happened.) The
3352 default is now 0s, meaning "never repeat". The "vacation" command was OK
3353 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3354 (I found it when inspecting the code).
3355
335620. There is now an overall timeout for performing a callout verification. It
3357 defaults to 4 times the callout timeout, which applies to individual SMTP
3358 commands during the callout. The overall timeout applies when there is more
3359 than one host that can be tried. The timeout is checked before trying the
3360 next host. This prevents very long delays if there are a large number of
3361 hosts and all are timing out (e.g. when the network connections are timing
3362 out). The value of the overall timeout can be changed by specifying an
3363 additional sub-option for "callout", called "maxwait". For example:
3364
3365 verify = sender/callout=5s,maxwait=20s
3366
336721. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3368 to the end before writing, but this should make it even safer).
3369
337022. Exim was forgetting that it had advertised PIPELINING for the second and
3371 subsequent messages on an SMTP connection. It was also not resetting its
3372 memory on STARTTLS and an internal HELO.
3373
337423. When Exim logs an SMTP synchronization error within a session, it now
3375 records whether PIPELINING has been advertised or not.
3376
337724. Added 3 instances of "(long int)" casts to time_t variables that were being
3378 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3379 rather than long int.
3380
338125. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3382
338326. Added the never_mail option to autoreply.
3384
3385
3386Exim version 4.41
3387-----------------
3388
3389 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3390 crash if the getsockname() call failed; this can happen if a connection is
3391 closed very soon after it is established. The problem was simply in the
3392 order in which certain operations were done, causing Exim to try to write
3393 to the SMTP stream before it had set up the file descriptor. The bug has
3394 been fixed by making things happen in the correct order.
3395
3396
3397Exim version 4.40
3398-----------------
3399
3400 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3401 before the connection was closed, thus losing the rejection response.
3402
3403 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3404 some early Solaris releases, but causes trouble in current releases where
3405 socklen_t is defined.
3406
3407 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3408 always exist.
3409
3410 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3411 configured.
3412
3413 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3414 that releasing the top of it at the end releases what was used for sub-
3415 expansions (unless the block got too big). However, discard this block if
3416 the first thing is a variable or header, so that we can use its block when
3417 it is dynamic (useful for very large $message_headers, for example).
3418
3419 6. Lookups now cache *every* query, not just the most recent. A new, separate
3420 store pool is used for this. It can be recovered when all lookup caches are
3421 flushed. Lookups now release memory at the end of their result strings.
3422 This has involved some general refactoring of the lookup sources.
3423
3424 7. Some code has been added to the store_xxx() functions to reduce the amount
3425 of flapping under certain conditions.
3426
3427 8. log_incoming_interface used to affect only the <= reception log lines. Now
3428 it causes the local interface and port to be added to several more SMTP log
3429 lines, for example "SMTP connection from", and rejection lines.
3430
3431 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3432
343310. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3434
343511. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3436 could be overwritten at the end of the current message (or the start of a
3437 new message if it was set in a HELO ACL). The value is now preserved for
3438 the duration of the SMTP connection.
3439
344012. If a transport had a headers_rewrite setting, and a matching header line
3441 contained an unqualified address, that address was qualified, even if it
3442 did not match any rewriting rules. The underlying bug was that the values
3443 of the flags that permit the existence of unqualified sender and recipient
3444 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3445 non-local messages, and by -bnq for local messages) were not being
3446 preserved with the message after it was received.
3447
344813. When Exim was logging an SMTP synchronization error, it could sometimes log
3449 "next input=" as part of the text comprising the host identity instead of
3450 the correct text. The code was using the same buffer for two different
3451 strings. However, depending on which order the printing function evaluated
3452 its arguments, the bug did not always show up. Under Linux, for example, my
3453 test suite worked just fine.
3454
345514. Exigrep contained a use of Perl's "our" scoping after change 4.3