Deal with anonymous SSL giving us no peer certificate.
[exim.git] / doc / doc-txt / ChangeLog
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453a6645 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.620 2010/06/05 10:34:29 pdp Exp $
495ae4b0
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2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
97fd1e48
PP
6Exim version 4.73
7
8PP/01 Date: & Message-Id: revert to normally being appended to a message,
9 only prepend for the Resent-* case. Fixes regression introduced in
10 Exim 4.70 by NM/22 for Bugzilla 607.
11
6901c596
PP
12PP/02 Include check_rfc2047_length in configure.default because we're seeing
13 increasing numbers of administrators be bitten by this.
14
a8c8d6b5
JJ
15JJ/01 Added DISABLE_DKIM and comment to src/EDITME
16
77bb000f
PP
17PP/03 Bugzilla 994: added openssl_options main configuration option.
18
a29e5231
PP
19PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
20
21PP/05 Bugzilla 834: provide a permit_codedump option for pipe transports.
22
55c75993
PP
23PP/06 Adjust NTLM authentication to handle SASL Initial Response.
24
453a6645
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25PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
26 without a peer certificate (I believe), leading to a segfault because of
27 an assumption that peers always have certificates. Be a little more
28 paranoid. Problem reported by Martin Tscholak.
29
55c75993 30
465e92cf
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31Exim version 4.72
32-----------------
33
453a6645
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34JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
35 $data_path, and $header_path variables; fixed documentation bugs and
36 typos
465e92cf 37
453a6645
PP
38JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
39 exipick to access non-standard spools, including the "frozen" queue
40 (Finput)
edae0343 41
9bd3e22c
NM
42NM/01 Bugzilla 965: Support mysql stored procedures.
43 Patch from Alain Williams
44
bb576ff7
NM
45NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
46
5a1a5845
NM
47NM/03 Bugzilla 955: Documentation fix for max_rcpts.
48 Patch from Andreas Metzler
49
981a9fad
NM
50NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
51 Patch from Kirill Miazine
52
7fc497ee
NM
53NM/05 Bugzilla 671: Added umask to procmail example.
54
1a41defa
JJ
55JJ/03 installed exipick 20100323.0, fixing doc bug
56
a466095c 57NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 58 directory. Notification and patch from Dan Rosenberg.
a466095c 59
94a6bd0b
NM
60TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
61
62TK/02 Improve log output when DKIM signing operation fails.
63
64MH/01 Treat the transport option dkim_domain as a colon separated
65 list, not as a single string, and sign the message with each element,
66 omitting multiple occurences of the same signer.
67
c1b141a8
NM
68NM/07 Null terminate DKIM strings, Null initialise DKIM variable
69 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 70
b26eacf1 71NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
72 Patch by Simon Arlott
73
179c5980 74PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 75 MBX locking. Notification from Dan Rosenberg.
179c5980 76
9bd3e22c 77
7c6d71af
NM
78Exim version 4.71
79-----------------
80
81TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body
82
f013fb92
NM
83NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
84
0eb8eedd
NM
85NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
86
663ee6d9
NM
87NM/03 Bugzilla 847: Enable DNSDB lookup by default.
88
177ebd9b
NM
89NM/04 Bugzilla 915: Flag broken perl installation during build.
90
7c6d71af 91
210f147e
NM
92Exim version 4.70
93-----------------
94
cdd3bb85 95TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 96 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
97
98TK/02 Write list of recipients to X-Envelope-Sender header when building
99 the mbox-format spool file for content scanning (suggested by Jakob
100 Hirsch)
101
102TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
103 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 104 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
105
106TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
107 by Mark Daniel Reidel <mr@df.eu>.
108
210f147e
NM
109NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
110 When building exim an external PCRE library is now needed -
111 PCRE is a system library on the majority of modern systems.
112 See entry on PCRE_LIBS in EDITME file.
113
deafd5b3
NM
114NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
115 conversation. Added nologin parameter to request.
116 Patch contributed by Kirill Miazine
117
089793a4
TF
118TF/01 Do not log submission mode rewrites if they do not change the address.
119
5f16ca82
TF
120TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
121
dae9d94e
NM
122NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
123 log files in place. Contributed by Roberto Lima
124
3f0da4d0
NM
125NM/04 Bugzilla 667: close socket used by dovecot authenticator
126
06864c44
TF
127TF/03 Bugzilla 615: When checking the local_parts router precondition
128 after a local_part_suffix or local_part_prefix option, Exim now
129 does not use the address's named list lookup cache, since this
130 contains cached lookups for the whole local part.
131
65a7d8c3
NM
132NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
133 Robert Millan. Documentation is in experimental-spec.txt
134
23510047 135TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 136
7d8eec3a 137NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000
5f28a6e8 138
7d8eec3a 139NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
140 Patch provided by Jan Srzednicki
141
89dec7b6
TF
142TF/05 Leading white space used to be stripped from $spam_report which
143 wrecked the formatting. Now it is preserved.
5f28a6e8 144
a99de90c
TF
145TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
146 that they are available at delivery time.
147
e2803e40
TF
148TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
149
7199e1ee
TF
150TF/08 TLS error reporting now respects the incoming_interface and
151 incoming_port log selectors.
152
e276e04b
TF
153TF/09 Produce a more useful error message if an SMTP transport's hosts
154 setting expands to an empty string.
155
ce552449
NM
156NM/06 Bugzilla 744: EXPN did not work under TLS.
157 Patch provided by Phil Pennock
158
e765a0f1
NM
159NM/07 Bugzilla 769: Extraneous comma in usage fprintf
160 Patch provided by Richard Godbee
161
4f054c63 162NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 163 acl_smtp_notquit, added index entry.
4f054c63 164
24c929a2
NM
165NM/09 Bugzilla 787: Potential buffer overflow in string_format
166 Patch provided by Eugene Bujak
167
cf73943b
NM
168NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
169 Patch provided by Maxim Dounin
170
b52bc06e
NM
171NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
172 Patch provided by Phil Pennock
173
447de4b0
NM
174NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
175
4c69d561
NM
176NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
177 Patch provided by Brad "anomie" Jorsch
178
d5c39246 179NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
NM
180 Patch provided by Dean Brooks
181
0b23848a
TK
182TK/05 Add native DKIM support (does not depend on external libraries).
183
8f3414a1 184NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
NM
185 Patch provided by Graeme Fowler
186
fb6f955d
NM
187NM/16 Bugzilla 851: Documentation example syntax fix.
188
189NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 190
dbb0bf41
NM
191NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
192
f3766eb5
NM
193NM/19 Bugzilla 745: TLS version reporting
194 Patch provided by Phil Pennock
195
196NM/20 Bugzilla 167: bool: condition support
197 Patch provided by Phil Pennock
36f12725 198
e6060e2c
NM
199NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
200 Patch provided by Phil Pennock
201
7496b417 202NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
NM
203 Patch provided by Brad "anomie" Jorsch
204
d5c13d66
NM
205NM/23 Bugzilla 687: Fix misparses in eximstats
206 Patch provided by Heiko Schlittermann
207
b2335c0b
NM
208NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid
209 Patch provided by Heiko Schlittermann
210
f4cd9433 211NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
1da77999 212 plus update to original patch.
f4cd9433
NM
213
214NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 215
8dc71ab3
NM
216NM/27 Bugzilla 802: Improvements to local interface IP addr detection
217 Patch provided by David Brownlee
218
400eda43
NM
219NM/28 Bugzilla 807: Improvements to LMTP delivery logging
220
221NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 222
07af267e
NM
223NM/30 Bugzilla 888: TLS documentation bugfixes
224
0cc09577 225NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 226
17792b53
NM
227NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
228 Unlike the original bugzilla I have changed all shell scripts in src tree
229
52383f8f
NM
230NM/33 Bugzilla 898: Transport filter timeout fix
231 Patch by Todd Rinaldo
232
5ca6d115
NM
233NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches
234 Patch by Serge Demonchaux
235
baee9eee
NM
236NM/35 Bugzilla 39: Base64 decode bug fixes
237 Patch by Jakob Hirsch
238
e93a964c
NM
239NM/36 Bugzilla 909: Correct connect() call in dcc code
240
9bf3d68f
NM
241NM/37 Bugzilla 910: Correct issue with relaxed/simple handling
242
243NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed
96535b98 244
30339e0f
NM
245NM/39 Bugzilla 911: Fixed MakeLinks build script
246
deafd5b3 247
47db1125
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248Exim version 4.69
249-----------------
250
4b3504d0
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251TK/01 Add preliminary DKIM support. Currently requires a forked version of
252 ALT-N's libdkim that I have put here:
253 http://duncanthrax.net/exim-experimental/
254
255 Note to Michael Haardt: I had to rename some vars in sieve.c. They
256 were called 'true' and it seems that C99 defines that as a reserved
257 keyword to be used with 'bool' variable types. That means you could
258 not include C99-style headers which use bools without triggering
259 build errors in sieve.c.
260
81ea09ca
NM
261NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
262 as mailq or other aliases. Changed the --help handling significantly
263 to do whats expected. exim_usage() emits usage/help information.
264
f13cddcb
SC
265SC/01 Added the -bylocaldomain option to eximstats.
266
8ad076b2
NM
267NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
268
a843aaa6
NM
269NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
270
47db1125
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271NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
272
273
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274Exim version 4.68
275-----------------
276
277PH/01 Another patch from the Sieve maintainer.
278
6a3bceb1
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279PH/02 When an IPv6 address is converted to a string for single-key lookup
280 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
281 dots are used instead of colons so that keys in lsearch files need not
282 contain colons. This was done some time before quoting was made available
283 in lsearch files. However, iplsearch files do require colons in IPv6 keys
284 (notated using the quote facility) so as to distinguish them from IPv4
285 keys. This meant that lookups for IP addresses in host lists did not work
286 for iplsearch lookups.
287
288 This has been fixed by arranging for IPv6 addresses to be expressed with
289 colons if the lookup type is iplsearch. This is not incompatible, because
290 previously such lookups could never work.
291
292 The situation is now rather anomolous, since one *can* have colons in
293 ordinary lsearch keys. However, making the change in all cases is
294 incompatible and would probably break a number of configurations.
295
2e30fa9d
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296TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
297 version.
298
0806a9c5
MH
299MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
300 conversion specification without a maximum field width, thereby enabling
301 a rogue spamd server to cause a buffer overflow. While nobody in their
302 right mind would setup Exim to query an untrusted spamd server, an
303 attacker that gains access to a server running spamd could potentially
304 exploit this vulnerability to run arbitrary code as the Exim user.
305
ae276964
TK
306TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
307 $primary_hostname instead of what libspf2 thinks the hosts name is.
308
0f2cbd1b
MH
309MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
310 a directory entry by the name of the lookup key. Previously, if a
311 symlink pointed to a non-existing file or a file in a directory that
312 Exim lacked permissions to read, a lookup for a key matching that
313 symlink would fail. Now it is enough that a matching directory entry
314 exists, symlink or not. (Bugzilla 503.)
315
2b85bce7
PH
316PH/03 The body_linecount and body_zerocount variables are now exported in the
317 local_scan API.
318
93655c46
PH
319PH/04 Added the $dnslist_matched variable.
320
6c512171
PH
321PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
322 This means they are set thereafter only if the connection becomes
323 encrypted.
324
325PH/06 Added the client_condition to authenticators so that some can be skipped
326 by clients under certain conditions.
327
aa6dc513
PH
328PH/07 The error message for a badly-placed control=no_multiline_responses left
329 "_responses" off the end of the name.
330
a96603a0
PH
331PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
332
8f240103
PH
333PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
334 (without spaces) instead of just copying the configuration text.
335
336PH/10 Added the /noupdate option to the ratelimit ACL condition.
337
d677b2f2
PH
338PH/11 Added $max_received_linelength.
339
d52120f2
PH
340PH/12 Added +ignore_defer and +include_defer to host lists.
341
64f2600a
PH
342PH/13 Installed PCRE version 7.2. This needed some changes because of the new
343 way in which PCRE > 7.0 is built.
344
8669f003
PH
345PH/14 Implemented queue_only_load_latch.
346
a4dc33a8
PH
347PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
348 MAIL command. The effect was to mangle the value on 64-bit systems.
349
d6a60c0f
PH
350PH/16 Another patch from the Sieve maintainer.
351
8f128379
PH
352PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
353
8932dffe
PH
354PH/18 If a system quota error occurred while trying to create the file for
355 a maildir delivery, the message "Mailbox is full" was not appended to the
356 bounce if the delivery eventually timed out. Change 4.67/27 below applied
357 only to a quota excession during the actual writing of the file.
d6a60c0f 358
ddea74fa 359PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
360 characters?) which causes problems in log lines. The DN values are now
361 passed through string_printing() before being added to log lines.
362
ddea74fa 363PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
364 and InterBase are left for another time.)
365
ddea74fa
PH
366PH/21 Added message_body_newlines option.
367
ce9f225c
PH
368PH/22 Guard against possible overflow in moan_check_errorcopy().
369
19897d52
PH
370PH/23 POSIX allows open() to be a macro; guard against that.
371
bc64a74d
PH
372PH/24 If the recipient of an error message contained an @ in the local part
373 (suitably quoted, of course), incorrect values were put in $domain and
374 $local_part during the evaluation of errors_copy.
375
eb4c0de6 376
b4ed4da0
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377Exim version 4.67
378-----------------
379
22ad45c9
MH
380MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
381 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
382 Jan Srzednicki.
383
b4ed4da0
PH
384PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
385 issue a MAIL command.
386
431b7361
PH
387PH/02 In an ACL statement such as
388
389 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
390
391 if a client was not listed at all, or was listed with a value other than
392 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
393 the condition was not true (as it should be), so access was not denied.
394 The bug was that the ! inversion was incorrectly passed on to the second
395 item. This has been fixed.
396
397PH/03 Added additional dnslists conditions == and =& which are different from
398 = and & when the dns lookup returns more than one IP address.
399
83da1223
PH
400PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
401 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
402
54fc8428
PH
403PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
404 FSYNC, which compiles an option called disable_fsync that allows for
405 bypassing fsync(). The documentation is heavily laced with warnings.
406
34c5e8dd
SC
407SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
408
bbe15da8
PH
409PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
410 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
411 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
412 including adding "make clean"; (3) Added -fPIC when compiling the test
413 dynamically loaded module, to get rid of a warning.
414
0e8a9471
MH
415MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
416 message fails, move_frozen_messages = true and ignore_bounce_errors_after
417 = 0s. The bug is otherwise harmless.
418
f0872424
PH
419PH/07 There was a bug in the dovecot authenticator such that the value of
420 $auth1 could be overwritten, and so not correctly preserved, after a
421 successful authentication. This usually meant that the value preserved by
422 the server_setid option was incorrect.
423
b01dd148
PH
424PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
425
6bf342e1
PH
426PH/09 Installed PCRE release 7.0.
427
273f34d0
PH
428PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
429 run for batched SMTP input. It is now run at the start of every message
430 in the batch. While fixing this I discovered that the process information
431 (output by running exiwhat) was not always getting set for -bs and -bS
432 input. This is fixed, and it now also says "batched" for BSMTP.
433
cf8b11a5
PH
434PH/11 Added control=no_pipelining.
435
41c7c167
PH
436PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
437 patch, slightly modified), and move the expansion of helo_data till after
438 the connection is made in the smtp transport (so it can use these
439 values).
440
9c57cbc0
PH
441PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
442
f3f065bb
PH
443PH/14 Added log_selector = +pid.
444
047bdd8c
PH
445PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
446
0ce9abe6
PH
447PH/16 Add ${if forany and ${if forall.
448
0e22dfd1
PH
449PH/17 Added dsn_from option to vary the From: line in DSNs.
450
4c590bd1
PH
451PH/18 Flush SMTP output before performing a callout, unless control =
452 no_callout_flush is set.
453
09945f1e
PH
454PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
455 was true (the default) a successful delivery failed to delete the retry
456 item, thus causing premature timeout of the address. The bug is now
457 fixed.
458
c51b8e75
PH
459PH/20 Added hosts_avoid_pipelining to the smtp transport.
460
e28326d8
PH
461PH/21 Long custom messages for fakedefer and fakereject are now split up
462 into multiline reponses in the same way that messages for "deny" and
463 other ACL rejections are.
464
75b1493f
PH
465PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
466 with slight modification.
467
7c5214ec
PH
468PH/23 Applied sieve patches from the maintainer "tracking the latest notify
469 draft, changing the syntax and factoring some duplicate code".
470
4311097e
PH
471PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
472 for deliveries of the second and subsequent messages over the same SMTP
473 connection.
474
29f89cad
PH
475PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
476 ${reduce, with only minor "tidies".
477
5e687460
SC
478SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
479
c3611384
PH
480PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
481 expansion side effects.
482
5a11a7b4
PH
483PH/27 When a message times out after an over-quota error from an Exim-imposed
484 quota, the bounce message says "mailbox is full". This message was not
485 being given when it was a system quota that was exceeded. It now should
486 be the same.
487
0e20aff9
MH
488MH/03 Made $recipients available in local_scan(). local_scan() already has
489 better access to the recipient list through recipients_list[], but
490 $recipients can be useful in postmaster-provided expansion strings.
491
ca86f471
PH
492PH/28 The $smtp_command and $smtp_command_argument variables were not correct
493 in the case of a MAIL command with additional options following the
494 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
495 were accidentally chopped off.
496
a14e5636
PH
497PH/29 SMTP synchronization checks are implemented when a command is read -
498 there is a check that no more input is waiting when there shouldn't be
499 any. However, for some commands, a delay in an ACL can mean that it is
500 some time before the response is written. In this time, more input might
501 arrive, invalidly. So now there are extra checks after an ACL has run for
502 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
503 pipelining has not been advertised.
504
ec95d1a6
PH
505PH/30 MH's patch to allow iscntrl() characters to be list separators.
506
42855d71
PH
507PH/31 Unlike :fail:, a custom message specified with :defer: was not being
508 returned in the SMTP response when smtp_return_error_details was false.
509 This has been fixed.
510
57c2c631
PH
511PH/32 Change the Dovecot authenticator to use read() and write() on the socket
512 instead of the C I/O that was originally supplied, because problems were
513 reported on Solaris.
514
58c01c94
PH
515PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
516 Exim which did not show up earlier: it was assuming that a call to
517 SSL_CTX_set_info_callback() might give an error value. In fact, there is
518 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
519 was a macro that became an assignment, so it seemed to work. This has
520 changed to a proper function call with a void return, hence the compile
521 error. Exim's code has been fixed.
522
dee5a20a
PH
523PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
524 cpus.
525
d2ee6114
PH
526PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
527
b2d5182b
PH
528PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
529
79749a79
PH
530PH/37 If a message is not accepted after it has had an id assigned (e.g.
531 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
532 "Completed" line in the log. When some messages of this type were
533 selected by exigrep, they were listed as "not completed". Others were
534 picked up by some special patterns. I have improved the selection
535 criteria to be more general.
79749a79 536
c456d9bb
PH
537PH/38 The host_find_failed option in the manualroute router can now be set
538 to "ignore", to completely ignore a host whose IP address cannot be
539 found. If all hosts are ignored, the behaviour is controlled by the new
540 host_all_ignored option.
541
cd9868ec
PH
542PH/39 In a list of hosts for manualroute, if one item (either because of multi-
543 homing or because of multiple MX records with /mx) generated more than
544 one IP address, and the following item turned out to be the local host,
545 all the secondary addresses of the first item were incorrectly removed
546 from the list, along with the local host and any following hosts (which
547 is what is supposed to happen).
548
ebeaf996
PH
549PH/40 When Exim receives a message, it writes the login name, uid, and gid of
550 whoever called Exim into the -H file. In the case of the daemon it was
551 behaving confusingly. When first started, it used values for whoever
552 started the daemon, but after a SIGHUP it used the Exim user (because it
553 calls itself on a restart). I have changed the code so that it now always
554 uses the Exim user.
555
2679d413
PH
556PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
557 message are rejected with the same error (e.g. no authentication or bad
558 sender address), and a DATA command is nevertheless sent (as can happen
559 with PIPELINING or a stupid MUA), the error message that was given to the
560 RCPT commands is included in the rejection of the DATA command. This is
561 intended to be helpful for MUAs that show only the final error to their
562 users.
563
84024b72
PH
564PH/42 Another patch from the Sieve maintainer.
565
8005d38e
SC
566SC/02 Eximstats - Differentiate between permanent and temporary rejects.
567 Eximstats - Fixed some broken HTML links and added missing column headers
568 (Jez Hancock).
569 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
570 columns for Rejects, Temp Rejects, Ham, and Spam rows.
571
3298c6c6
SC
572SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
573
a43a27c5
PH
574PH/43 Yet another patch from the Sieve maintainer.
575
58eb016e 576PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
577 the response to the final '.' that terminates a message, but only in the
578 case where the client has not sent further data following the '.'
579 (unfortunately, this is allowed). However, in many cases there won't be
580 any further data because there won't be any more messages to send. A call
581 to select() can be used: if it shows that the input is "ready", there is
582 either input waiting, or the socket has been closed. An attempt to read
583 the next input character can distinguish the two cases. Previously, Exim
58eb016e 584 would have sent an OK response which the client would never have see.
563b63fa
PH
585 This could lead to message repetition. This fix should cure that, at
586 least in a lot of common cases.
58eb016e 587
b43a74ea
PH
588PH/45 Do not advertise STARTTLS in response to HELP unless it would be
589 advertised in response to EHLO.
590
b4ed4da0 591
5dd1517f
PH
592Exim version 4.66
593-----------------
594
595PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
596 fixed by 4.65/MH/01 (is this a record?) are fixed:
597
598 (i) An empty string was always treated as zero by the numeric comparison
599 operators. This behaviour has been restored.
600
601 (ii) It is documented that the numeric comparison operators always treat
602 their arguments as decimal numbers. This was broken in that numbers
603 starting with 0 were being interpreted as octal.
604
605 While fixing these problems I realized that there was another issue that
606 hadn't been noticed. Values of message_size_limit (both the global option
607 and the transport option) were treated as octal if they started with 0.
608 The documentation was vague. These values are now always treated as
609 decimal, and I will make that clear in the documentation.
610
611
93cfa765
TK
612Exim version 4.65
613-----------------
614
615TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
616 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
617 versions. (#438)
618
d6066548
MH
619MH/01 Don't check that the operands of numeric comparison operators are
620 integers when their expansion is in "skipping" mode (fixes bug
621 introduced by 4.64-PH/07).
622
4362ff0d
PH
623PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
624 child addresses, Exim now panics and dies. Previously, because the count
625 is held in a short int, deliveries were likely to be lost. As such a
626 large number of recipients for a single message is ridiculous
627 (performance will be very, very poor), I have chosen to impose a limit
628 rather than extend the field.
629
93cfa765 630
944e9e9c
TF
631Exim version 4.64
632-----------------
aa41d2de 633
21d74bd9
TK
634TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
635 leftover -K file (the existence of which was triggered by #402).
636 While we were at it, introduced process PID as part of the -K
637 filename. This should rule out race conditions when creating
638 these files.
639
640TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
641 processing considerably. Previous code took too long for large mails,
642 triggering a timeout which in turn triggers #401.
643
644TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
645 in the DK code in transports.c. sendfile() is not really portable,
646 hence the _LINUX specificness.
944e9e9c
TF
647
648TF/01 In the add_headers option to the mail command in an Exim filter,
649 there was a bug that Exim would claim a syntax error in any
650 header after the first one which had an odd number of characters
651 in the field name.
652
2b1c6e3a
PH
653PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
654 callout verification, Exim cached a "reject" for the entire domain. This
655 is correct for most verifications, but it is not correct for a recipient
656 verification with use_sender or use_postmaster set, because in that case
657 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
658 case of MAIL FROM:<> rejection from other early rejections (e.g.
659 rejection of HELO). When verifying a recipient using a non-null MAIL
660 address, the cache is ignored if it shows MAIL FROM:<> rejection.
661 Whatever the result of the callout, the value of the domain cache is
662 left unchanged (for any other kind of callout, getting as far as trying
663 RCPT means that the domain itself is ok).
664
1f872c80
PH
665PH/02 Tidied a number of unused variable and signed/unsigned warnings that
666 gcc 4.1.1 threw up.
667
668PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
669 manifest itself as EPIPE rather than ECONNECT. When tidying away a
670 session, the daemon ignores ECONNECT errors and logs others; it now
671 ignores EPIPE as well.
672
d203e649
PH
673PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
674 (quoted-printable decoding).
675
cc2ed8f7 676PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 677 later the small subsequent patch to fix an introduced bug.
f951fd57 678
ddfcd446
PH
679PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
680
d45b1de8
PH
681PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
682
683PH/08 An error is now given if message_size_limit is specified negative.
684
38a0a95f 685PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 686 to be given (somewhat) arbitrary names.
38a0a95f 687
a2405d83
JJ
688JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
689 in 4.64-PH/09.
690
691JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
692 miscellaneous code fixes
693
6ea85e9a
PH
694PH/10 Added the log_reject_target ACL modifier to specify where to log
695 rejections.
696
26da7e20
PH
697PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
698 hostname. This is wrong, because it relates to the incoming message (and
699 probably the interface on which it is arriving) and not to the outgoing
700 callout (which could be using a different interface). This has been
701 changed to use the value of the helo_data option from the smtp transport
702 instead - this is what is used when a message is actually being sent. If
703 there is no remote transport (possible with a router that sets up host
704 addresses), $smtp_active_hostname is used.
6ea85e9a 705
14aa5a05 706PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 707 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
708 (a) The code assumed that strncpy() returns a negative number on buffer
709 overflow, which isn't the case. Replaced with Exim's string_format()
710 function.
711 (b) There were several signed/unsigned issues. I just did the minimum
712 hacking in of casts. There is scope for a larger refactoring.
713 (c) The code used strcasecmp() which is not a standard C function.
714 Replaced with Exim's strcmpic() function.
715 (d) The code set only $1; it now sets $auth1 as well.
716 (e) A simple test gave the error "authentication client didn't specify
717 service in request". It would seem that Dovecot has changed its
718 interface. Fortunately there's a specification; I followed it and
719 changed what the client sends and it appears to be working now.
720
ff75a1f7
PH
721PH/13 Added $message_headers_raw to provide the headers without RFC 2047
722 decoding.
723
e6f6568e
PH
724PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
725 address A is aliased to B and C, where B exists and C does not. Without
726 -v the output is "A verified" because verification stops after a
727 successful redirection if more than one address is generated. However,
728 with -v the child addresses are also verified. Exim was outputting "A
729 failed to verify" and then showing the successful verification for C,
730 with its parentage. It now outputs "B failed to verify", showing B's
731 parentage before showing the successful verification of C.
732
d6f6e0dc
PH
733PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
734 look up a TXT record in a specific list after matching in a combined
735 list.
736
322050c2
PH
737PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
738 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
739 they consult the DNS. I had assumed they would set it the way they
740 wanted; and indeed my experiments on Linux seem to show that in some
741 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
742 To be on the safe side, however, I have now made the interface to
743 host_find_byname() similar to host_find_bydns(), with an argument
744 containing the DNS resolver options. The host_find_byname() function now
745 sets these options at its start, just as host_find_bydns() does. The smtp
746 transport options dns_qualify_single and dns_search_parents are passed to
747 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
748 of host_find_byname() use the default settings of RES_DEFNAMES
749 (qualify_single) but not RES_DNSRCH (search_parents).
750
08955dd3
PH
751PH/17 Applied (a modified version of) Nico Erfurth's patch to make
752 spool_read_header() do less string testing, by means of a preliminary
753 switch on the second character of optional "-foo" lines. (This is
754 overdue, caused by the large number of possibilities that now exist.
755 Originally there were few.) While I was there, I also converted the
756 str(n)cmp tests so they don't re-test the leading "-" and the first
757 character, in the hope this might squeeze out yet more improvement.
758
1eccaa59
PH
759PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
760 flag allowing group syntax was set by the header_syntax check but not
761 turned off, possible causing trouble later; (2) The flag was not being
762 set at all for the header_verify test, causing "group"-style headers to
763 be rejected. I have now set it in this case, and also caused header_
764 verify to ignore an empty address taken from a group. While doing this, I
765 came across some other cases where the code for allowing group syntax
766 while scanning a header line wasn't quite right (mostly, not resetting
767 the flag correctly in the right place). These bugs could have caused
768 trouble for malformed header lines. I hope it is now all correct.
769
602e59e5
PH
770PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
771 with the "reply" argument non-NULL. The code, however (which originally
772 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
773 but it didn't always do it. This confused somebody who was copying the
774 code for some other use. I have removed all the tests.
775
411ef850
PH
776PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
777 feature that was used to support insecure browsers during the U.S. crypto
778 embargo. It requires special client support, and Exim is probably the
779 only MTA that supported it -- and would never use it because real RSA is
780 always available. This code has been removed, because it had the bad
781 effect of slowing Exim down by computing (never used) parameters for the
782 RSA_EXPORT functionality.
783
7befa435
PH
784PH/21 On the advice of Timo Sirainen, added a check to the dovecot
785 authenticator to fail if there's a tab character in the incoming data
786 (there should never be unless someone is messing about, as it's supposed
787 to be base64-encoded). Also added, on Timo's advice, the "secured" option
788 if the connection is using TLS or if the remote IP is the same as the
789 local IP, and the "valid-client-cert option" if a client certificate has
790 been verified.
791
48da4259 792PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
793 authenticators. This can be used for authorization after authentication
794 succeeds. (In the case of plaintext, it servers for both authentication
795 and authorization.)
796
48da4259
PH
797PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
798 if any retry times were supplied.
799
d1d5595c
PH
800PH/24 Exim crashed if verify=helo was activated during an incoming -bs
801 connection, where there is no client IP address to check. In this
802 situation, the verify now always succeeds.
803
0ef732d9
PH
804PH/25 Applied John Jetmore's -Mset patch.
805
328895cc
PH
806PH/26 Added -bem to be like -Mset, but loading a message from a file.
807
fd700877
PH
808PH/27 In a string expansion for a processed (not raw) header when multiple
809 headers of the same name were present, leading whitespace was being
810 removed from all of them, but trailing whitespace was being removed only
811 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
812 before concatenation. Completely empty headers in a concatenation (as
813 before) are ignored.
fd700877 814
8dce1a6f
PH
815PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
816 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
817
17af4a17
PH
818PH/29 [Removed. This was a change that I later backed out, and forgot to
819 correct the ChangeLog entry (that I had efficiently created) before
820 committing the later change.]
f6c332bd
PH
821
822PH/30 Exim was sometimes attempting to deliver messages that had suffered
823 address errors (4xx response to RCPT) over the same connection as other
824 messages routed to the same hosts. Such deliveries are always "forced",
825 so retry times are not inspected. This resulted in far too many retries
826 for the affected addresses. The effect occurred only when there were more
827 hosts than the hosts_max_try setting in the smtp transport when it had
828 the 4xx errors. Those hosts that it had tried were not added to the list
829 of hosts for which the message was waiting, so if all were tried, there
830 was no problem. Two fixes have been applied:
831
832 (i) If there are any address or message errors in an SMTP delivery, none
833 of the hosts (tried or untried) are now added to the list of hosts
834 for which the message is waiting, so the message should not be a
835 candidate for sending over the same connection that was used for a
836 successful delivery of some other message. This seems entirely
837 reasonable: after all the message is NOT "waiting for some host".
838 This is so "obvious" that I'm not sure why it wasn't done
839 previously. Hope I haven't missed anything, but it can't do any
840 harm, as the worst effect is to miss an optimization.
841
842 (ii) If, despite (i), such a delivery is accidentally attempted, the
843 routing retry time is respected, so at least it doesn't keep
844 hammering the server.
845
c1114884
PH
846PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
847 in ${readsocket because some servers need this prod.
848
7a0743eb
PH
849PH/32 Added some extra debug output when updating a wait-xxx database.
850
0d85fa3f
PH
851PH/33 The hint "could be header name not terminated by colon", which has been
852 given for certain expansion errors for a long time, was not being given
853 for the ${if def:h_colon_omitted{... case.
854
1bf43b78
PH
855PH/34 The spec says: "With one important exception, whenever a domain list is
856 being scanned, $domain contains the subject domain." There was at least
857 one case where this was not true.
858
520de300
PH
859PH/35 The error "getsockname() failed: connection reset by peer" was being
860 written to the panic log as well as the main log, but it isn't really
861 panic-worthy as it just means the connection died rather early on. I have
862 removed the panic log writing for the ECONNRESET error when getsockname()
863 fails.
864
48c7f9e2
PH
865PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
866 runs only) independently of the message's sender address. This meant
867 that, if the 4xx error was in fact related to the sender, a different
868 message to the same recipient with a different sender could confuse
869 things. In particualar, this can happen when sending to a greylisting
870 server, but other circumstances could also provoke similar problems.
871 I have changed the default so that the retry time for these errors is now
872 based a combination of the sender and recipient addresses. This change
873 can be overridden by setting address_retry_include_sender=false in the
874 smtp transport.
875
99ea1c86
PH
876PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
877 remote server are returned as part of bounce messages. This was not
878 happening for LMTP over a pipe (the lmtp transport), but now it is the
879 same for both kinds of LMTP.
880
a2042e78
PH
881PH/38 Despite being documented as not happening, Exim was rewriting addresses
882 in header lines that were in fact CNAMEs. This is no longer the case.
883
4fbcfc2e
PH
884PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
885 and queue runs started by the daemon processed all messages. This has
886 been fixed so that -R and -S can now usefully be given with -q<time>.
887
aa41d2de
PH
888PH/40 Import PCRE release 6.7 (fixes some bugs).
889
af561417
PH
890PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
891
3cc66b45
PH
892PH/42 Give an error if -q is specified more than once.
893
194cc0e4
PH
894PH/43 Renamed the variables $interface_address and $interface_port as
895 $received_ip_address and $received_port, to make it clear that these
896 values apply to message reception, and not to the outgoing interface when
897 a message is delivered. (The old names remain recognized, of course.)
898
a401ddaa
PH
899PH/44 There was no timeout on the connect() call when using a Unix domain
900 socket in the ${readsocket expansion. There now is.
901
4e88a19f
PH
902PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
903 be meaningful with "accept".
904
d7d7b289
SC
905SC/01 Eximstats V1.43
906 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
907
908SC/02 Eximstats V1.44
909 Use a glob alias rather than an array ref in the generated
910 parser. This improves both readability and performance.
911
912SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
913 Collect SpamAssassin and rejection statistics.
914 Don't display local sender or destination tables unless
915 there is data to show.
916 Added average volumes into the top table text output.
917
918SC/04 Eximstats V1.46
919 Collect data on the number of addresses (recipients)
920 as well as the number of messages.
921
922SC/05 Eximstats V1.47
923 Added 'Message too big' to the list of mail rejection
924 reasons (thanks to Marco Gaiarin).
925
926SC/06 Eximstats V1.48
927 Mainlog lines which have GMT offsets and are too short to
928 have a flag are now skipped.
929
930SC/07 Eximstats V1.49 (Alain Williams)
931 Added the -emptyok flag.
932
933SC/08 Eximstats V1.50
934 Fixes for obtaining the IP address from reject messages.
935
0ea2a468
JJ
936JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
937 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
938 whitesspace changes from 4.64-PH/27
939
940JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
941 match 4.64-PH/13
942
943JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
944 are found, allow negative numbers in numeric criteria)
945
946JJ/06 exipick.20061117.2, added new $message_body_missing variable
947
948JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
949 to match changes made in 4.64-PH/43
950
8a10f5a4
PH
951PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
952
30e18802
PH
953PH/47 Put in an explicit test for a DNS lookup of an address record where the
954 "domain" is actually an IP address, and force a failure. This locks out
955 those revolvers/nameservers that support "A-for-A" lookups, in
956 contravention of the specifications.
957
55728a4f
PH
958PH/48 When a host name was looked up from an IP address, and the subsequent
959 forward lookup of the name timed out, the host name was left in
960 $sender_host_name, contrary to the specification.
d7d7b289 961
d7837193
PH
962PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
963 restricted to single-key lookups, Exim was not diagnosing an error if
964 * or *@ was used with a query-style lookup.
965
87054a31
PH
966PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
967
ea2c01d2
MH
968MH/01 local_scan ABI version incremented to 1.1. It should have been updated
969 long ago, but noone interested enough thought of it. Let's just say that
970 the "1.1" means that there are some new functions that weren't there at
971 some point in the past.
972
e4fa6968
PH
973PH/51 Error processing for expansion failure of helo_data from an smtp
974 transport during callout processing was broken.
975
56f5d9bd
PH
976PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
977 tested/used via the -bh/-bhc/-bs options.
978
922e1c28
PH
979PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
980 bug, fixed in subsequent PCRE releases).
981
21eb6e72
PH
982PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
983 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
984
a0540757
PH
985PH/55 Check for a ridiculously long file name in exim_dbmbuild.
986
944e9e9c 987
478be7b0
SC
988Exim version 4.63
989-----------------
990
991SC/01 Use a glob alias rather than an array ref in eximstats generated
992 parser. This improves both readability and performance.
993
994SC/02 Collect SpamAssassin and rejection statistics in eximstats.
995 Don't display local sender or destination tables in eximstats unless
996 there is data to show.
997 Added average volumes into the eximstats top table text output.
998
999SC/03 Collect data on the number of addresses (recipients) as well
1000 as the number of messages in eximstats.
1001
2b965a65
TF
1002TF/01 Correct an error in the documentation for the redirect router. Exim
1003 does (usually) call initgroups() when daemonizing.
478be7b0 1004
45b91596
PH
1005TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1006 with consistent privilege compared to when running as a daemon.
478be7b0 1007
c59f5781
TF
1008TF/03 Note in the spec that $authenticated_id is not set for local
1009 submissions from trusted users.
1010
90fc3069
TF
1011TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1012 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1013
6083aca0
TF
1014TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1015 by adding some example configuration directives to the default
1016 configuration file. A little bit of work is required to uncomment the
1017 directives and define how usernames and passwords are checked, but
1018 there is now a framework to start from.
1019
765b530f
PH
1020PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1021 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1022 without this. I don't know how relevant this is to other LDAP libraries.
1023
4e167a8c
PH
1024PH/02 Add the verb name to the "unknown ACL verb" error.
1025
4608d683
PH
1026PH/03 Magnus Holmgren's patch for filter_prepend_home.
1027
b8dc3e4a
PH
1028PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1029
5418e93b
PH
1030PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1031 directory not expanded when it should be if an expanded home directory
1032 was set for the address (which is overridden by the transport).
1033
b4a9bda2
PH
1034PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1035 libradius.
1036
45b91596
PH
1037PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1038 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1039 because it is too late at that time, and has no effect.
1040
5547e2c5
PH
1041PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1042 security issue with \' (bugzilla #107). I could not use the
1043 PQescapeStringConn() function, because it needs a PGconn value as one of
1044 its arguments.
1045
dbcef0ea
PH
1046PH/08 When testing addresses using -bt, indicate those final addresses that
1047 are duplicates that would not cause an additional delivery. At least one
1048 person was confused, thinking that -bt output corresponded to deliveries.
1049 (Suppressing duplicates isn't a good idea as you lose the information
1050 about possibly different redirections that led to the duplicates.)
1051
25257489
PH
1052PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1053 systems where poll() doesn't work, in particular OS X.
1054
c816d124
PH
1055PH/10 Added more information to debugging output for retry time not reached.
1056
a9ccd69a
PH
1057PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1058 operations in malware.c.
1059
75fa1910
PH
1060PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1061 signatures.
1062
a7d7aa58
PH
1063PH/13 If write_rejectlog was set false when logging was sent to syslog with
1064 syslog_duplication set false, log lines that would normally be written
1065 both the the main log and to the reject log were not written to syslog at
1066 all.
1067
42119b09
PH
1068PH/14 In the default configuration, change the use of "message" in ACL warn
1069 statements to "add_header".
1070
41609df5
PH
1071PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1072 not followed by a command (e.g. "seen endif").
1073
a5bd321b
PH
1074PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1075 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1076 latter.
1077
e85a7ad5 1078PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1079 so that it is now:
1080
e85a7ad5
PH
1081 ${if or { \
1082 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1083 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1084 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1085 }{no}{yes}}
1086
e85a7ad5
PH
1087 The Auto-Submitted: and various List- headers are standardised, whereas I
1088 don't think Precedence: ever was.
5dff5817 1089
d8fe1c03
PH
1090PH/18 Refactored debugging code in route_finduser() to show more information,
1091 in particular, the error code if getpwnam() issues one.
1092
16282d2b
PH
1093PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1094 This is apparently needed in addition to the PH/07 change above to avoid
1095 any possible encoding problems.
1096
35d40a98
PH
1097PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1098 but not after initializing Perl.
1099
034d99ab
PH
1100PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1101 output them only if debugging. By default they are written stderr,
1102 apparently, which is not desirable.
1103
6ec97b1b
PH
1104PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1105 queries.
1106
e22ca4ac
JJ
1107JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1108 --not options
1109
1110JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1111
33d73e3b
PH
1112PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1113 authenticated or an ident call has been made. Suppress the default
1114 values for $authenticated_id and $authenticated_sender (but permit -oMai
1115 and -oMas) when testing with -bh.
1116
9ecb03f3
PH
1117PH/24 Re-jigged the order of the tests in the default configuration so that the
1118 tests for valid domains and recipients precede the DNS black list and CSA
1119 tests, on the grounds that those ones are more expensive.
1120
084efe8d
PH
1121PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1122 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1123 This bug exists in every version of Exim that I still have, right back to
1124 0.12.
1125
366fc9f0
PH
1126PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1127 However, an attempt to turn on case-sensitivity in a regex key by
1128 including (?-i) didn't work because the subject string was already
1129 lowercased, and the effects were non-intuitive. It turns out that a
1130 one-line patch can be used to allow (?-i) to work as expected.
1131
c59f5781 1132
c887c79e
TF
1133Exim version 4.62
1134-----------------
1135
1136TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1137 other effects) broke the use of negated acl sub-conditions.
1138
1cce3af8
PH
1139PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1140 patch).
1141
afb3eaaf
PH
1142PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1143 "Deny" causes Exim to reject the incoming connection with a 554 error.
1144 Unfortunately, if there is a major crisis, such as a disk failure,
1145 tcp-wrappers gives "deny", whereas what one would like would be some
1146 kind of temporary error. A kludge has been added to help with this.
1147 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1148 554 error is used if errno is still zero or contains ENOENT (which occurs
1149 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1150 451 error is used.
1151
e173618b
PH
1152PH/03 Add -lutil to the default FreeBSD LIBS setting.
1153
dd16e114
PH
1154PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1155 errors. Otherwise a message that provokes a temporary error (when other
1156 messages do not) can cause a whole host to time out.
1157
f7fd3850
PH
1158PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1159 addresses were routed directly to files or pipes from a redirect router.
1160 File deliveries just didn't batch; pipe deliveries might have suffered
1161 odd errors.
1162
d87df92c
PH
1163PH/06 A failure to get a lock for a hints database would erroneously always say
1164 "Failed to get write lock", even when it was really a read lock.
1165
7e9f683d
PH
1166PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1167 of 0600. This has been changed to use the value of the lockfile_mode
1168 option (which defaults to 0600).
1169
bfad5236
PH
1170PH/08 Applied small patch from the Sieve maintainer.
1171
01c490df
PH
1172PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1173 folder from quota calculations, a direct delivery into this folder messed
1174 up the contents of the maildirsize file. This was because the regex was
1175 used only to exclude .Trash (or whatever) when the size of the mailbox
1176 was calculated. There was no check that a delivery was happening into an
1177 excluded directory. This bug has been fixed by ignoring all quota
1178 processing for deliveries into excluded directories.
1179
d6629cdc
PH
1180PH/10 Added the maildirfolder_create_regex option to appendfile.
1181
1cce3af8 1182
214e2000
PH
1183Exim version 4.61
1184-----------------
1185
1186PH/01 The code for finding all the local interface addresses on a FreeBSD
1187 system running IPv6 was broken. This may well have applied to all BSD
1188 systems, as well as to others that have similar system calls. The broken
1189 code found IPv4 interfaces correctly, but gave incorrect values for the
1190 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1191 that it would not match correctly against @[] and not recognize the IPv6
1192 addresses as local.
1193
f9daeae0
PH
1194PH/02 The ipliteral router was not recognizing addresses of the form user@
1195 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1196
7e66e54d
PH
1197PH/03 Added disable_ipv6.
1198
c8ea1597
PH
1199PH/04 Changed $reply_address to use the raw form of the headers instead of the
1200 decoded form, because it is most often used to construct To: headers
1201 lines in autoreplies, and the decoded form may well be syntactically
1202 invalid. However, $reply_address has leading white space removed, and all
1203 newlines turned into spaces so that the autoreply transport does not
1204 grumble.
1205
911f6fde
PH
1206PH/05 If group was specified without a user on a router, and no group or user
1207 was specified on a transport, the group from the router was ignored.
1208
47ca6d6c
PH
1209PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1210 for visible compile-time settings that can be used to change these
1211 numbers, for those that want even more. Backwards compatibility with old
1212 spool files has been maintained. However, going back to a previous Exim
1213 release will lost any variables that are in spool files.
1214
ed0e9820
PH
1215PH/07 Two small changes when running in the test harness: increase delay when
1216 passing a TCP/IP connection to a new process, in case the original
1217 process has to generate a bounce, and remove special handling of
1218 127.0.0.2 (sic), which is no longer necessary.
1219
eff37e47
PH
1220PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1221 be the same on different OS.
1222
1921d2ea
PH
1223PH/09 Moved a debug statement in filter processing to avoid a race problem when
1224 testing.
1225
b3f69ca8
JJ
1226JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1227 whether --show-vars was specified or not
1228
1229JJ/02 exipick: Added support for new ACL variable spool format introduced
1230 in 4.61-PH/06
1231
424a1c63
PH
1232PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1233 syntactically invalid From: or Reply-to: line, and a filter used this to
1234 generate an autoreply, and therefore failed to obtain an address for the
1235 autoreply, Exim could try to deliver to a non-existent relative file
1236 name, causing unrelated and misleading errors. What now happens is that
1237 it logs this as a hard delivery error, but does not attempt to create a
1238 bounce message.
1239
7a100415
PH
1240PH/11 The exinext utility has a -C option for testing purposes, but although
1241 the given file was scanned by exinext itself; it wasn't being passed on
1242 when Exim was called.
1243
19b9dc85
PH
1244PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1245 an end-of-file indication when reading a command response.
1246
309bd837
PH
1247PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1248 compiled. In many other places in Exim, IPv6 addresses are always
1249 recognized, so I have changed this. It also means that IPv4 domain
1250 literals of the form [IPV4:n.n.n.n] are now always recognized.
1251
59e82a2a
PH
1252PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1253 used if the router is not running as root, for example, when verifying at
1254 ACL time, or when using -bh. The debugging output from this situation was
1255 non-existent - all you got was a failure to exec. I have made two
1256 changes:
1257
1258 (a) Failures to set uid/gid, the current directory, or a process leader
1259 in a subprocess such as that created by queryprogram now generate
1260 suitable debugging ouput when -d is set.
1261
1262 (b) The queryprogram router detects when it is not running as root,
1263 outputs suitable debugging information if -d is set, and then runs
1264 the subprocess without attempting to change uid/gid.
1265
9edc04ce
PH
1266PH/15 Minor change to Makefile for building test_host (undocumented testing
1267 feature).
1268
1349e1e5
PH
1269PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1270 additional section of a DNS packet that returns MX or SRV records.
1271 Instead, it always explicitly searches for A/AAAA records. This avoids
1272 major problems that occur when a DNS server includes only records of one
1273 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1274 fixed another bug: if SRV records were looked up and the corresponding
1275 address records were *not* found in the additional section, the port
1276 values from the SRV records were lost.
1277
ea49d0e1
PH
1278PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1279 using the correct key (the original address) when searching the retry
1280 rules in order to find which one to use for generating the retry hint.
1281
064a94c9
PH
1282PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1283 adding the default one. Similarly, if it contains a Reply-To: header, the
1284 errors_reply_to option, if set, is not used.
1285
727071f8
PH
1286PH/19 When calculating a retry time, Exim used to measure the "time since
1287 failure" by looking at the "first failed" field in the retry record. Now
1288 it does not use this if it is later than than the arrival time of the
1289 message. Instead it uses the arrival time. This makes for better
1290 behaviour in cases where some deliveries succeed, thus re-setting the
1291 "first failed" field. An example is a quota failure for a huge message
1292 when small messages continue to be delivered. Without this change, the
1293 "time since failure" will always be short, possible causing more frequent
1294 delivery attempts for the huge message than are intended.
dd16e114 1295 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1296
f78eb7c6
PH
1297PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1298 $1, $2, $3) because the numerical variables can be reset during some
1299 expansion items (e.g. "match"), thereby losing the authentication data.
1300
21c28500
PH
1301PH/21 Make -bV show the size of off_t variables so that the test suite can
1302 decide whether to run tests for quotas > 2G.
1303
1304PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1305 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1306 filecount value is greater than 2G or if a quota value is greater than 2G
1307 on a system where the size of off_t is not greater than 4, a panic error
1308 is given.
1309
1688f43b
PH
1310PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1311 never match. The debug and -bh output now contains an explicit error
1312 message indicating a malformed IPv4 address or mask.
1313
1314PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1315 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1316 PH/23 above applies.
1317
9675b384
PH
1318PH/25 Do not write to syslog when running in the test harness. The only
1319 occasion when this arises is a failure to open the main or panic logs
1320 (for which there is an explicit test).
1321
6a3f1455
PH
1322PH/26 Added the /no_tell option to "control=freeze".
1323
dac79d3e
PH
1324PH/27 If a host name lookup failed very early in a connection, for example, if
1325 the IP address matched host_lookup and the reverse lookup yielded a name
1326 that did not have a forward lookup, an error message of the form "no IP
1327 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1328 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1329
5977a0b3
PH
1330PH/28 An enabling patch from MH: add new function child_open_exim2() which
1331 allows the sender and the authenticated sender to be set when
1332 submitting a message from within Exim. Since child_open_exim() is
1333 documented for local_scan(), the new function should be too.
1334
c91535f3
PH
1335PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1336 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1337 results in an empty string is now treated as unset.
1338
0d46a8c8
PH
1339PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1340
278c6e6c
PH
1341PH/31 Added sender_verify_fail logging option.
1342
2cbb4081
PH
1343PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1344 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1345 tidied the source and removed it altogether.
1346
3eef829e
PH
1347PH/33 When a queue run was abandoned because the load average was too high, a
1348 log line was always written; now it is written only if the queue_run log
1349 selector is set. In addition, the log line for abandonment now contains
1350 information about the queue run such as the pid. This is always present
1351 in "start" and "stop" lines but was omitted from the "abandon" line.
1352
1ab95fa6
PH
1353PH/34 Omit spaces between a header name and the colon in the error message that
1354 is given when verify = headers_syntax fails (if there are lots of them,
1355 the message gets confusing).
1356
230205fc
PH
1357PH/35 Change the default for dns_check_names_pattern to allow slashes within
1358 names, as there are now some PTR records that contain slashes. This check
1359 is only to protect against broken name servers that fall over on strange
1360 characters, so the fact that it applies to all lookups doesn't matter.
1361
75e0e026
PH
1362PH/36 Now that the new test suite is complete, we can remove some of the
1363 special code in Exim that was needed for the old test suite. For example,
1364 sorting DNS records because real resolvers return them in an arbitrary
1365 order. The new test suite's fake resolver always returns records in the
1366 same order.
1367
1368PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1369 bounces) except when queue_only is set, to avoid logging races between
1370 the different processes.
1371
145396a6
PH
1372PH/38 Panic-die if .include specifies a non-absolute path.
1373
3cd34f13
PH
1374PH/39 A tweak to the "H" retry rule from its user.
1375
11121d3d
JJ
1376JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1377 a label. They prevented compilation on older perls.
1378
1379JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1380 a warning to be raised on newish perls.
1381
1382JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1383 on queue. Changes to match documented behaviour of showing count of
1384 messages matching specified criteria.
1385
8def5aaf
PH
1386PH/40 Changed the default ident timeout from 30s to 5s.
1387
929ba01c
PH
1388PH/41 Added support for the use of login_cap features, on those BSD systems
1389 that have them, for controlling the resources used by pipe deliveries.
1390
2632889e
PH
1391PH/42 The content-scanning code uses fopen() to create files in which to put
1392 message data. Previously it was not paying any attention to the mode of
1393 the files. Exim runs with umask(0) because the rest of the code creates
1394 files with open(), and sets the required mode explicitly. Thus, these
1395 files were ending up world-writeable. This was not a big issue, because,
1396 being within the spool directory, they were not world-accessible. I have
1397 created a function called modefopen, which takes an additional mode
1398 argument. It sets umask(777), creates the file, chmods it to the required
1399 mode, then resets the umask. All the relevant calls to fopen() in the
1400 content scanning code have been changed to use this function.
1401
944a9c55
PH
1402PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1403 to 24 hours. This avoids potential overflow problems when processing G
1404 and H retry rules. I suspect nobody ever tinkers with this value.
1405
4a23603b
PH
1406PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1407
4730f942
PH
1408PH/45 When the plaintext authenticator is running as a client, the server's
1409 challenges are checked to ensure they are valid base64 strings. By
1410 default, the authentication attempt is cancelled if an invalid string is
1411 received. Setting client_ignore_invalid_base64 true ignores these errors.
1412 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1413 they are received. Thus, the responses can be made to depend on the
1414 challenges. If an invalid string is ignored, an empty string is placed in
1415 the variable.
1416
30dba1e6
PH
1417PH/46 Messages that are created by the autoreply transport now contains a
1418 References: header, in accordance with RFCs 2822 and 3834.
1419
382afc6b
PH
1420PH/47 Added authenticated_sender_force to the smtp transport.
1421
a86229cf
PH
1422PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1423
50c99ba6
PH
1424PH/49 Installed latest patch from the Sieve maintainer.
1425
d35e429d
PH
1426PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1427 was also set, the appendfile transport was unnecessarily scanning a
1428 directory of message files (e.g. for maildir delivery) to find the count
1429 of files (along with the size), even though it did not need this
1430 information. It now does the scan only if it needs to find either the
1431 size of the count of files.
1432
f90d018c
PH
1433PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1434
75def545
PH
1435PH/52 Two bugs concerned with error handling when the smtp transport is
1436 used in LMTP mode:
1437
1438 (i) Exim was not creating retry information for temporary errors given
1439 for individual recipients after the DATA command when the smtp transport
1440 was used in LMTP mode. This meant that they could be retried too
1441 frequently, and not timed out correctly.
1442
1443 (ii) Exim was setting the flag that allows error details to be returned
1444 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1445 recipients that were returned after the DATA command.
1446
1447PH/53 This is related to PH/52, but is more general: for any failing address,
1448 when detailed error information was permitted to be returned to the
1449 sender, but the error was temporary, then after the final timeout, only
1450 "retry timeout exceeded" was returned. Now it returns the full error as
1451 well as "retry timeout exceeded".
1452
c46782ef
PH
1453PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1454 do this, and (what is worse) MTAs that accept it.
1455
71fafd95
PH
1456PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1457 will now be deprecated.
1458
2c5db4fd
PH
1459PH/56 New os.c-cygwin from the Cygwin maintainer.
1460
9cf6b11a
JJ
1461JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1462 formats (previously only available in exim formats via -bpr, -bpru,
1463 and -bpra. Now also available in native and exiqgrep formats)
1464
1465JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1466 with very large, slow to parse queues
1467
1468JJ/08 exipick: added ! as generic prefix to negate any criteria format
1469
1470JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1471
898d150f
PH
1472PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1473 responses to authentication challenges, though it was showing the
1474 challenges; (ii) I've removed the CR characters from the debug output for
1475 SMTP output lines.
1476
46218253
PH
1477PH/58 Allow for the insertion of a newline as well as a space when a string
1478 is turned into more than one encoded-word during RFC 2047 encoding. The
1479 Sieve code now uses this.
1480
e97957bc
PH
1481PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1482 data_4xx, lost_connection, tls_required.
1483
81e509d7
PH
1484PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1485 message was being sent as an SMTP response.
1486
3d240ff7
PH
1487PH/61 Add -l and -k options to exicyclog.
1488
b37c4101
PH
1489PH/62 When verifying, if an address was redirected to one new address, so that
1490 verification continued, and the new address failed or deferred after
1491 having set something in $address_data, the value of $address_data was not
1492 passed back to the ACL. This was different to the case when no
1493 redirection occurred. The value is now passed back in both cases.
1494
79378e0f
PH
1495PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1496 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1497 use login_cap.h, so on its own it isn't the distinguishing feature. The
1498 new name refers directly to the setclassresources() function.
1499
e49c7bb4
PH
1500PH/65 Added configuration files for NetBSD3.
1501
d114ec46
PH
1502PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1503
f3d7df6c
PH
1504PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1505 is preferred over IPv4.
1506
715ab376
PH
1507PH/68 The bounce_return_message and bounce_return_body options were not being
1508 honoured for bounces generated during the reception of non-SMTP messages.
1509 In particular, this applied to messages rejected by the ACL. This bug has
1510 been fixed. However, if bounce_return_message is true and bounce_return_
1511 body is false, the headers that are returned for a non-SMTP message
1512 include only those that have been read before the error was detected.
1513 (In the case of an ACL rejection, they have all been read.)
1514
6b31b150
PH
1515PH/69 The HTML version of the specification is now built in a directory called
1516 spec_html instead of spec.html, because the latter looks like a path with
1517 a MIME-type, and this confuses some software.
1518
1519PH/70 Catch two compiler warnings in sieve.c.
1520
d515a917
PH
1521PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1522 function verify_get_ident() calls ip_connect() to connect a socket, but
1523 if the "connect()" function timed out, ip_connect() used to close the
1524 socket. However, verify_get_ident() also closes the socket later, and in
1525 between Exim writes to the log, which may get opened at this point. When
1526 the socket was closed in ip_connect(), the log could get the same file
1527 descriptor number as the socket. This naturally causes chaos. The fix is
1528 not to close the socket in ip_connect(); the socket should be closed by
1529 the function that creates it. There was only one place in the code where
1530 this was missing, in the iplookup router, which I don't think anybody now
1531 uses, but I've fixed it anyway.
1532
9b8fadde
PH
1533PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1534 well as to direct DNS lookups. Otherwise the handling of names in host
1535 lists is inconsistent and therefore confusing.
1536
214e2000 1537
5de37277
PH
1538Exim version 4.60
1539-----------------
1540
cc38ddbf
PH
1541PH/01 Two changes to the default runtime configuration:
1542
1543 (1) Move the checks for relay_from_hosts and authenticated clients from
1544 after to before the (commented out) DNS black list checks.
1545
1546 (2) Add control=submission to the relay_from_hosts and authenticated
1547 clients checks, on the grounds that messages accepted by these
1548 statements are most likely to be submissions.
5de37277 1549
72fdd6ae
PH
1550PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1551
1552 (1) Generate an error if the third argument for the ${prvs expansion is
1553 not a single digit.
1554
1555 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1556 string.
1557
1558 (3) Reset the variables that are obtained from the first argument of
1559 ${prvscheck and used in the second argument before leaving the code,
1560 because their memory is reclaimed, so using them afterwards may do
1561 silly things.
1562
1563 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1564 one (it's much easier than Tom thought :-).
1565
1566 (5) Because of (4), we can now allow for the use of $prvscheck_result
1567 inside the third argument.
cb9328de 1568
cb741023
PH
1569PH/03 For some reason, the default setting of PATH when running a command from
1570 a pipe transport was just "/usr/bin". I have changed it to
1571 "/bin:/usr/bin".
1572
f174f16e
PH
1573PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1574 anything to be listed in the output from -bV.
b2f5a032 1575
c25242d7
PH
1576PH/05 When a filter generated an autoreply, the entire To: header line was
1577 quoted in the delivery log line, like this:
1578
1579 => >A.N.Other <ano@some.domain> <original@ddress> ...
1580
1581 This has been changed so that it extracts the operative address. There
1582 may be more than one such address. If so, they are comma-separated, like
1583 this:
1584
1585 => >ano@some.domain,ona@other.domain <original@ddress> ...
1586
82c19f95
PH
1587PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1588 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1589 not being looked up in the rDNS to get a host name, Exim was showing the
1590 IP address twice in Received: lines, even though the IP addresses were
1591 identical. For example:
1592
1593 Received: from [1.2.3.4] (helo=[1.2.3.4])
1594
1595 However, if the real host name was known, it was omitting the HELO data
1596 if it matched the actual IP address. This has been tidied up so that it
1597 doesn't show the same IP address twice.
1598
d7ffbc12
PH
1599PH/07 When both +timestamp and +memory debugging was on, the value given by
1600 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1601 called by the debug printing, thereby overwriting the timestamp buffer.
1602 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1603
9f526266
PH
1604PH/08 When the original message was included in an autoreply transport, it
1605 always said "this is a copy of the message, including all the headers",
1606 even if body_only or headers_only was set. It now gives an appropriate
1607 message.
1608
87fcc8b9
PH
1609PH/09 Applied a patch from the Sieve maintainer which:
1610
1611 o fixes some comments
1612 o adds the (disabled) notify extension core
1613 o adds some debug output for the result of if/elsif tests
1614 o points to the current vacation draft in the documentation
1615 and documents the missing references header update
1616
1617 and most important:
1618
1619 o fixes a bug in processing the envelope test (when testing
1620 multiple envelope elements, the last element determinted the
1621 result)
1622
456682f5
PH
1623PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1624 Electronic Mail") by including:
1625
1626 Auto-submitted: auto-generated
1627
1628 in the messages that it generates (bounce messages and others, such as
1629 warnings). In the case of bounce messages for non-SMTP mesages, there was
1630 also a typo: it was using "Auto_submitted" (underscore instead of
1631 hyphen). Since every message generated by Exim is necessarily in response
1632 to another message, thes have all been changed to:
1633
1634 Auto-Submitted: auto-replied
1635
1636 in accordance with these statements in the RFC:
1637
1638 The auto-replied keyword:
1639
1640 - SHOULD be used on messages sent in direct response to another
1641 message by an automatic process,
1642
1643 - MUST NOT be used on manually-generated messages,
1644
1645 - MAY be used on Delivery Status Notifications (DSNs) and Message
1646 Disposition Notifications (MDNs),
1647
1648 - MUST NOT be used on messages generated by automatic or periodic
1649 processes, except for messages which are automatic responses to
1650 other messages.
1651
3e46c1aa
PH
1652PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1653 to the default Received: header definition.
456682f5 1654
49826d12
PH
1655PH/12 Added log selector acl_warn_skipped (default on).
1656
eba0c039
PH
1657PH/13 After a successful wildlsearch lookup, discard the values of numeric
1658 variables because (a) they are in the wrong storage pool and (b) even if
1659 they were copied, it wouldn't work properly because of the caching.
1660
a0d6ba8a
PH
1661PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1662 checking when decoding. Apparently there are clients that generate
1663 overlong encoded strings. Why am I not surprised?
1664
f0917727
PH
1665PH/15 If the first argument of "${if match_address" was not empty, but did not
1666 contain an "@" character, Exim crashed. Now it writes a panic log message
1667 and treats the condition as false.
1668
096fee00
PH
1669PH/16 In autoreply, treat an empty string for "once" the same as unset.
1670
024bd3c2
PH
1671PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1672 extension "envelope-auth". The code is finished and in agreement with
1673 other implementations, but there is no documentation so far and in fact,
1674 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1675 not changing the active code.
1676
1677 Print executed "if" and "elsif" statements when debugging is used. This
1678 helps a great deal to understand what a filter does.
1679
1680 Document more things not specified clearly in RFC3028. I had all this
1681 sorted out, when out of a sudden new issues came to my mind. Oops."
1682
df199fec
PH
1683PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1684 (Bugzilla #53).
1685
d27f1df3
PH
1686PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1687 canonical form (as documented). However, after a host name lookup from
1688 the IP address, check_host() was doing a simple string comparison with
1689 addresses acquired from the DNS when checking that the found name did
1690 have the original IP as one of its addresses. Since any found IPv6
1691 addresses are likely to be in abbreviated form, the comparison could
1692 fail. Luckily, there already exists a function for doing the comparison
1693 by converting both addresses to binary, so now that is used instead of
1694 the text comparison.
1695
96776534
PH
1696PH/20 There was another similar case to PH/19, when a complete host name was
1697 given in a host list; looking up its IP address could give an abbreviated
1698 form, whereas the current host's name might or might not be abbreviated.
1699 The same fix has been applied.
1700
5de37277 1701
9a799bc0
PH
1702Exim version 4.54
1703-----------------
1704
1705PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1706 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1707 It now does.
1708
99a4b039
PH
1709PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1710 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1711
1712PH/03 Typo: missing ".o" in src/pcre/Makefile.
1713
4b233853
PH
1714PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1715 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1716 Also, for "Auto-Submitted", treat anything other than "no" as
1717 non-personal, in accordance with RFC 3834. (Previously it treated
1718 anything starting "auto-" as non-personal.)
1719
8857ccfd
PH
1720TF/01 The control=submission/name=... option had a problem with syntax
1721 errors if the name included a slash character. The /name= option
1722 now slurps the rest of the string, so it can include any characters
1723 but it must come last in the list of options (after /sender_retain
1724 or /domain=).
1725
433a2980
PH
1726PH/05 Some modifications to the interface to the fake nameserver for the new
1727 testing suite.
1728
3e46c1aa 1729
9a799bc0 1730
e3a311ba
TK
1731Exim version 4.53
1732-----------------
1733
1734TK/01 Added the "success_on_redirect" address verification option. See
1735 NewStuff for rationale and an example.
1736
13b685f9
PH
1737PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1738
395ff96d
PH
1739PH/02 Patch to exigrep to allow it to work on syslog lines.
1740
5b68f6e4
PH
1741PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1742 fread() to skip over the body file's header line, because in Cygwin the
1743 header line is locked and is inaccessible.
1744
1ab52c69
PH
1745PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1746 co-exist for some time) to make it clear that it is the Exim ID that is
1747 referenced, not the Message-ID: header line.
1748
b07e6aa3
PH
1749PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1750 string_format() function, because snprintf() does not exist on all
1751 operating systems.
1752
254e032f
PH
1753PH/06 The use of forbid_filter_existstest now also locks out the use of the
1754 ${stat: expansion item.
1755
3af76a81
PH
1756PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1757 protocol synchronization error", to keep the pedants happy.
1758
2548ba04
PH
1759PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1760 well as for IRIX systems, when gcc is being used. See the host.c source
1761 file for comments.
1762
b6c6011d
PH
1763PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1764
cf39cf57
PH
1765PH/10 Named domain lists were not working if used in a queue_smtp_domains
1766 setting.
1767
f1513293
PH
1768PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1769 transport and to the smtp transport in LMTP mode.
1770
727549a4
PH
1771TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1772
af46795e
PH
1773PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1774 run a filter in a subprocess. This could lead to confusion in subsequent
1775 lookups in the parent process. There should also be a search_tidyup() at
1776 the end of the subprocess.
1777
d7b47fd0
PH
1778PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1779 only if the host matched helo_try_verify_hosts, which caused the
1780 verification to occur when the EHLO/HELO command was issued. The ACL just
1781 tested the remembered result. Now, if a previous verification attempt has
1782 not happened, "verify = helo" does it there and then.
1783
ee744174
JJ
1784JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1785
b582ab87
PH
1786TK/03 Fix log output including CR from clamd.
1787
41a13e0a
PH
1788PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1789 exist provoked a memory error which could cause a segfault.
1790
f625cc5a
PH
1791PH/15 Installed PCRE 6.2
1792
1793PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1794
21f7af35
PH
1795PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1796 of the problem. Specifically, suggested +O2 rather than +O1 for the
1797 HP-UX compiler.
1798
31480e42
PH
1799PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1800
2d280592
PH
1801PH/20 If a delivery was routed to a non-standard port by means of an SRV
1802 record, the port was not correctly logged when the outgoing_port log
1803 selector was set (it logged the transort's default port).
1804
7cd1141b
PH
1805PH/21 Added support for host-specific ports to manualroute, queryprogram,
1806 fallback_hosts, and "hosts" in the smtp transport.
1807
1808PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1809 host errors such as "Connection refused".
1810
750af86e
PH
1811PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1812 authentication with radiusclient 0.4.9:
1813
1814 - Error returned from rc_read_config was caught wrongly
1815 - Username/password not passed on to radius server due to wrong length.
1816
1817 The presumption is that some radiusclient API changes for 4.51/PH/17
1818 were not taken care of correctly. The code is still untested by me (my
1819 Linux distribution still has 0.3.2 of radiusclient), but it was
1820 contributed by a Radius user.
1821
1822PH/24 When doing a callout, the value of $domain wasn't set correctly when
1823 expanding the "port" option of the smtp transport.
1824
4304270b
TK
1825TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1826 while reading a MIME header. Thanks to Tom Hughes for a patch.
1827
750af86e
PH
1828PH/24 Include config.h inside local_scan.h so that configuration settings are
1829 available.
1830
64ffc24f
PH
1831PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1832 that in an ACL for RCPT (for example), you can examine exactly what was
1833 received.
1834
5dd9625b
PH
1835PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1836 commands, but it was not correctly comparing the address with the actual
1837 client host address. Thus, it would show the EHLO address in Received:
1838 header lines when this was not necessary.
1839
5591031b
PH
1840PH/27 Added the % operator to ${eval:}.
1841
ba18e66a
PH
1842PH/28 Exim tries to create and chdir to its spool directory when it starts;
1843 it should be ignoring failures (because with -C, for example, it has lost
1844 privilege). It wasn't ignoring creation failures other than "already
1845 exists".
1846
9cec981f
PH
1847PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1848 -bV or -d is used.
1849
aa2b5c79
PH
1850PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1851 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1852 too many continuations, the temporary file was not being removed, and the
1853 return code was incorrect.
aa2b5c79 1854
48a53b7f
PH
1855PH/31 Missing "BOOL" in function definition in filtertest.c.
1856
1c59d63b
PH
1857PH/32 Applied Sieve patches from the maintainer.
1858
671012da
TK
1859TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1860
1509d3a8
PH
1861PH/33 Added "verify = not_blind".
1862
1863PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1864 Local/Makefile (with some defaults set). These are used in built scripts
1865 such as exicyclog, but they have never been used in the exim_install
1866 script (though there are many overriding facilities there). I have
1867 arranged that the exim_install script now takes note of these two
1868 settings.
1869
1870PH/35 Installed configuration files for Dragonfly.
1871
2fe1a124
PH
1872PH/36 When a locally submitted message by a trusted user did not contain a
1873 From: header, and the sender address was obtained from -f or from an SMTP
1874 MAIL command, and the trusted user did not use -F to supply a sender
1875 name, $originator_name was incorrectly used when constructing a From:
1876 header. Furthermore, $originator_name was used for submission mode
1877 messages from external hosts without From: headers in a similar way,
1878 which is clearly wrong.
1879
8800895a
PH
1880PH/37 Added control=suppress_local_fixups.
1881
ccfdb010
PH
1882PH/38 When log_selector = +received_sender was set, and the addition of the
1883 sender made the log line's construction buffer exactly full, or one byte
1884 less than full, an overflow happened when the terminating "\n" was
1885 subsequently added.
1886
1130bfb0
PH
1887PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1888 when the result of a list match is failure because a DNS lookup failed.
1889
ebcb507f
PH
1890PH/40 RM_COMMAND is now used in the building process.
1891
c35e155c
PH
1892PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1893 the "build-* directories that it finds.
1894
95d1f782
PH
1895PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1896 address in a domain literal was a prefix of an interface address.
1897
fd6de02e
PH
1898PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1899 when verifying a sender address, unless rewrite_headers is false.
1900
58de37c5
PH
1901PH/44 Wrote a long comment about why errors_to addresses are verified as
1902 recipients, not senders.
1903
261cf466
TF
1904TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1905 the ratelimit ACL was added.
1906
3ee512ff
PH
1907PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1908
e08c430f
PH
1909PH/46 Added extra information about PostgreSQL errors to the error string.
1910
bef5a11f
PH
1911PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1912 avoiding the need to install special zones in a real server. This is
1913 backwards compatible; if it can't find the fake resolver, it drops back.
1914 Thus, both old and new test suites can be run.
1915
7546de58
TF
1916TF/02 Added util/ratelimit.pl
1917
e5d5a95f
TF
1918TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1919 clock is set back in time.
1920
2e88a017
TF
1921TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1922 Candler <B.Candler@pobox.com>.
1923
a5f65aa4
TF
1924TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1925 OK for addresses that are the result of redirections.
1926
e7726cbf
PH
1927PH/48 A number of further additions for the benefit of the new test suite,
1928 including a fake gethostbyname() that interfaces to the fake DNS resolver
1929 (see PH/47 above).
1930
a7fdad5b
TF
1931TF/06 The fix for widen_domains has also been applied to qualify_single and
1932 search_parents which are the other dnslookup options that can cause
1933 header rewrites.
1934
6af56900
PH
1935PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1936 type ("H").
1937
0925ede6
PH
1938PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1939
66afa403
TF
1940TF/07 Exim produced the error message "an SRV record indicated no SMTP
1941 service" if it encountered an MX record with an empty target hostname.
1942 The message is now "an MX or SRV record indicated no SMTP service".
1943
0154e85a
TF
1944TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1945 if the DNS of the sending site is misconfigured. This is quite a
1946 common situation. This change restores the behaviour of treating a
1947 helo verification defer as a failure.
1948
16f12c76
PH
1949PH/51 If self=fail was set on a router, the bounce message did not include the
1950 actual error message.
1951
bbe902f0 1952
e5a9dba6
PH
1953Exim version 4.52
1954-----------------
1955
1956TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1957
22c3b60b
PH
1958PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1959 command itself ended in error, the underlying message about the transport
1960 filter timeout was being overwritten with the pipe command error. Now the
1961 underlying error message should be appended to the second error message.
1962
06a9b4b5
PH
1963TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1964
c1ac6996
PH
1965PH/02 Reduce the amount of output that "make" produces by default. Full output
1966 can still be requested.
1967
9c7a242c
PH
1968PH/03 The warning log line about a condition test deferring for a "warn" verb
1969 was being output only once per connection, rather than after each
1970 occurrence (because it was using the same function as for successful
1971 "warn" verbs). This seems wrong, so I have changed it.
1972
87ba3f5f
PH
1973TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1974 it should not have, which might have caused a crash in the right
1975 circumstances, but probably never did.
1976
1977PH/04 Installed a modified version of Tony Finch's patch to make submission
1978 mode fix the return path as well as the Sender: header line, and to
1979 add a /name= option so that you can make the user's friendly name appear
1980 in the header line.
1981
29aba418
TF
1982TF/03 Added the control = fakedefer ACL modifier.
1983
fe0dab11
TF
1984TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1985 Mark Lowes for thorough testing.
870f6ba8 1986
11d337a4
TK
1987TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1988
1989TK/03 Merged latest SRS patch from Miles Wilton.
1990
415c8f3b
PH
1991PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
1992 with the definition in sysexits.h (which is #included earlier).
1993 Fortunately, Exim does not actually use EX_OK. The code used to try to
1994 preserve the sysexits.h value, by assumimg that macro definitions were
1995 scanned for macro replacements. I have been disabused of this notion,
1996 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 1997
958541e9
PH
1998PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
1999 in the smtp transport. When a block could not be written in a single
2000 write() function, the timeout was being re-applied to each part-write.
2001 This seems wrong - if the receiver was accepting one byte at a time it
2002 would take for ever. The timeout is now adjusted when this happens. It
2003 doesn't have to be particularly precise.
2004
c206415f
TK
2005TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2006 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2007
2a4be8f9
PH
2008PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2009 without a domain if the check to <postmaster@domain> fails.
2010
1cba11c5
SC
2011SC/01 Eximstats: added -xls and the ability to specify output files
2012 (patch written by Frank Heydlauf).
2013
2014SC/02 Eximstats: use FileHandles for outputing results.
2015
2016SC/03 Eximstats: allow any combination of xls, txt, and html output.
2017
2018SC/04 Eximstats: fixed display of large numbers with -nvr option
2019
2020SC/05 Eximstats: fixed merging of reports with empty tables.
2021
2022SC/06 Eximstats: added the -include_original_destination flag
2023
2024SC/07 Eximstats: removed tabs and trailing whitespace.
2025
1005d00e
TK
2026TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2027
2028TK/06 MBOX spool code: Add real "From " MBOX separator line
2029 so the .eml file is really in mbox format (even though
2030 most programs do not really care). Patch from Alex Miller.
2031
2032TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2033 The latter is generated from $received_to and is only set if the
2034 message has one envelope recipient. SA can use these headers,
2035 obviously out-of-the-box. Patch from Alex Miller.
2036
9b4768fa
PH
2037PH/08 The ${def test on a variable was returning false if the variable's
2038 value was "0", contrary to what the specification has always said!
2039 The result should be true unless the variable is empty.
2040
2041PH/09 The syntax error of a character other than { following "${if
2042 def:variable_name" (after optional whitespace) was not being diagnosed.
2043 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2044 accidental colon was present, for example, could give incorrect results.
2045
0d7eb84a
PH
2046PH/10 Tidied the code in a number of places where the st_size field of a stat()
2047 result is used (not including appendfile, where other changes are about
2048 to be made).
2049
2050PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2051 This involved changing a lot of size variables from int to off_t. It
2052 should work with maildirs and everything.
2053
40727bee
TK
2054TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2055 spamd dying while we are connected to it.
2056
554d2369
TF
2057TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2058 <jgh@wizmail.org>
2059
1f922db1
PH
2060PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2061 function for BDB 4.3.
2062
ef213c3b
PH
2063PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2064
8ac170f3
PH
2065PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2066 the sources for PCRE have been re-arranged and more files are now
2067 involved.
2068
b1c749bb
PH
2069PH/15 The code I had for printing potentially long long variables in PH/11
2070 above was not the best (it lost precision). The length of off_t variables
2071 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2072 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2073 to be "long long int" or "long int". This is needed for the internal
2074 formatting function string_vformat().
b1c749bb 2075
4aac9b49
PH
2076PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2077 the configuration file to be ":syslog", then the script "guesses" where
2078 the logs files are, rather than using the compiled in default. In our
2079 case the guess is not the same as the compiled default, so the script
2080 suddenly stopped working when I started to use syslog. The patch checks
2081 to see if log_file_path is "". If so, it attempts to read it from exim
2082 with no configuration file to get the compiled in version, before it
2083 falls back to the previous guessing code."
2084
294520c8
TK
2085TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2086 implementing BATV in an Exim configuration. See NewStuff for the gory
2087 details.
2088
5bd022fe
PH
2089PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2090 Makefile that are specific to HP-UX.
2091
90e9ce59
PH
2092PH/18 If the "use_postmaster" option was set for a recipient callout together
2093 with the "random" option, the postmaster address was used as the MAIL
2094 FROM address for the random test, but not for the subsequent recipient
2095 test. It is now used for both.
2096
5ea81592
PH
2097PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2098 patch removes a few documentation additions to RFC 3028, because the
2099 latest draft now contains them. It adds the new en;ascii-case comparator
2100 and a new error check for 8bit text in MIME parts. Comparator and
2101 require names are now matched exactly. I enabled the subaddress
2102 extension, but it is not well tested yet (read: it works for me)."
2103
c6c2dc1d
PH
2104PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2105 rework some of the code of TK/09 above to avoid the hardwired use of
2106 "%lld" and "long long". Replaced the call to snprintf() with a call to
2107 string_vformat().
2108
fffffe4c
PH
2109PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2110 records point to non-existent hosts", "retry timeout exceeded", and
2111 "retry time not reached for any host after a long failure period".
ca02eafb 2112
9a26b6b2
PH
2113PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2114 experimental DomainKeys support:
2115
2116 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2117 (2) On an error such as an illegally used "control", the wrong name for
2118 the control was given.
2119
2120 These problems did NOT occur unless DomainKeys support was compiled.
2121
4aee0225
PH
2122PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2123
32d668a5
PH
2124PH/24 Added ${if match_ip condition.
2125
8187c3f3
PH
2126PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2127 databases so that it will be absolutely obvious if a crash occurs in the
2128 DB library. This is a regular occurrence (often caused by mis-matched
2129 db.h files).
2130
ff790e47 2131PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2132 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2133 picked up on a user's system that detects such things. There doesn't seem
2134 to be a gcc warning option for this - only an attribute that has to be
2135 put on the function's prototype. It seems that in Fedora Core 4 they have
2136 set this on a number of new functions. No doubt there will be more in due
2137 course.
ff790e47 2138
5417f6d1
PH
2139PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2140 specify a transport. However, if an address that was verified by such a
2141 router was the subject of a callout, Exim crashed because it tried to
2142 read the rcpt_include_affixes from the non-existent transport. Now it
2143 just assumes that the setting of that option is false. This bug was
2144 introduced by 4.51/PH/31.
2145
59cf8544
PH
2146PH/28 Changed -d+all to exclude +memory, because that information is very
2147 rarely of interest, but it makes the output a lot bigger. People tend to
2148 do -d+all out of habit.
2149
e7ad8a65
PH
2150PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2151 code in os-type was giving problems when libc.so lives in lib64, like on
2152 x86_64 Fedora Core.
2153
ade42478
PH
2154PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2155 aren't the modern standard, and it seems that some systems' include files
2156 don't always have them. Exim was already checking for some of the newer
2157 ones like T_AAAA, and defining it itself. I've added checks for all the
2158 record types that Exim uses.
2159
182ad5cf
PH
2160PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2161 not automatically generating a new one, as it is supposed to. This
2162 prevented TLS from working. If the file did exist, but contained invalid
2163 data, a new version was generated, as expected. It was only the case of a
2164 non-existent file that was broken.
2165
b0d9fc80
TK
2166TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2167 with a change in libdomainkeys > 0.64.
2168
2169TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2170 from DNS. If the selector record carries the flag, it now has
2171 precedence over the domain-wide flag.
2172
2173TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2174
47c7a64a
PH
2175PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2176 the use of a port name that isn't defined in /etc/services) occurred, the
2177 message was deferred as in a normal delivery, and thus remained on the
2178 spool, instead of being failed because of the mua_wrapper setting. This
2179 is now fixed, and I tidied up some of the mua_wrapper messages at the
2180 same time.
2181
a388bce4
SC
2182SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2183 the messages in a hash of arrays rather than using individual hashes.
2184 This is a bit cleaner and results in dramatic memory savings, albeit
2185 at a slight CPU cost.
2186
2187SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2188 as requested by Marc Sherman.
2189
2190SC/10 Eximstats: added histograms for user specified patterns as requested
2191 by Marc Sherman.
2192
0793e4ed
SC
2193SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2194
c58b88df
PH
2195PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2196 fopen() in the content-scanning modules that did not already have it.
2197
e7ad8a65 2198
7982096b
PH
2199Exim version 4.51
2200-----------------
2201
1a46a8c5
PH
2202TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2203 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2204
2f079f46 2205TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2206
2207TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2208
2209PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2210 to test Sieve filters that use "vacation".
2211
2212PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2213 that changes the way the GnuTLS parameters are stored in the cache file.
2214 The new format can be generated externally. For backward compatibility,
2215 if the data in the cache doesn't make sense, Exim assumes it has read an
2216 old-format file, and it generates new data and writes a new file. This
2217 means that you can't go back to an older release without removing the
2218 file.
2219
2220PH/03 A redirect router that has both "unseen" and "one_time" set does not
2221 work if there are any delivery delays because "one_time" forces the
2222 parent to be marked "delivered", so its unseen clone is never tried
2223 again. For this reason, Exim now forbids the simultaneous setting of
2224 these two options.
2225
2226PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2227 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2228 entry if you want to know the details. The fix, however, neglected to
2229 consider the case when local delivery batching is involved. The test for
2230 "previously delivered" was not happening when checking to see if an
2231 address could be batched with a previous (undelivered) one; under
2232 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2233 address.
1a46a8c5
PH
2234
2235PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2236 in its include files, and this causes problems building Exim.
2237
2238PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2239 header_syntax) but Exim was just ignoring anything given after a slash.
2240 In particular, this caused confusion with an attempt to use "verify =
2241 reverse_host_lookup/defer_ok". An error is now given when options are
2242 supplied for verify items that do not have them. (Maybe reverse_host_
2243 lookup should have a defer_ok option, but that's a different point.)
2244
2245PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2246 defined by RFC 821) to 2048, because there were problems with some AUTH
2247 commands, and RFC 1869 says the size should be increased for extended
2248 SMTP commands that take arguments.
2249
2250PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2251 Finch).
2252
2253PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2254 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2255
49c2d5ea
PH
2256PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2257 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2258 whatever). Otherwise the password may appear in the log. Following change
2259 PH/42 below, there is no longer a chance of it appearing in a bounce
2260 message.
49c2d5ea 2261
bf759a8b
PH
2262PH/11 Installed exipick version 20050225.0 from John Jetmore.
2263
83364d30
PH
2264PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2265 of its addresses was ever tried. (Bugzilla bug #2.)
2266
7999bbd7
PH
2267PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2268 the result incorrectly in the debug output. (It correctly added a newline
2269 to what was transported.)
2270
7dbf77c9
PH
2271TF/01 Added $received_time.
2272
74e0617f
PH
2273PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2274 commented out examples of how to interface to a virus scanner and to
2275 SpamAssassin. Also added commented examples of av_scanner and
2276 spamd_address settings.
2277
2f079f46
PH
2278PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2279 and controls are allowed in which ACLs. There were a couple of minor
2280 errors. Some of the entries in the conditions table (which is a table of
2281 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2282 negation of where the condition IS allowed.
2283
8c841523
PH
2284PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2285
7766a4f0
PH
2286PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2287 header file does not have a version number, so I've had to invent a new
2288 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2289 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2290 radiusclient), but it was contributed by a Radius user.
2291
8b417f2c
PH
2292PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2293 files or directories, for OpenSSL.
2294
901f42cb
PH
2295PH/19 When an Exim process that is running as root has to create an Exim log
2296 file, it does so in a subprocess that runs as exim:exim so as to get the
2297 ownership right at creation (otherwise, other Exim processes might see
2298 the file with the wrong ownership). There was no test for failure of this
2299 fork() call, which would lead to the process getting stuck as it waited
2300 for a non-existent subprocess. Forks do occasionally fail when resources
2301 run out. I reviewed all the other calls to fork(); they all seem to check
2302 for failure.
2303
f9b9210e
PH
2304PH/20 When checking for unexpected SMTP input at connect time (before writing
2305 the banner), Exim was not dealing correctly with a non-positive return
2306 from the read() function. If the client had disconnected by this time,
2307 the result was a log entry for a synchronization error with an empty
2308 string after "input=" when read() returned zero. If read() returned -1
2309 (an event I could not check), uninitialized data bytes were printed.
2310 There were reports of junk text (parts of files, etc) appearing after
2311 "input=".
2312
54cdb463
PH
2313PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2314
cf00dad6
PH
2315PH/22 Added support for macro redefinition, and (re)definition in between
2316 driver and ACL definitions.
2317
acb1b346
PH
2318PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2319 forgetting to use the resulting value; it was using the unexpanded value.
2320
c5ddb310
PH
2321PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2322 hadn't been configured. The fix is from Juergen Kreileder, who
2323 understands it better than I do:
2324
2325 "Here's what I see happening with three configured cyrus_sasl
2326 authenticators configured (plain, login, cram-md5):
2327
2328 On startup auth_cyrus_sasl_init() gets called for each of these.
2329 This means three calls to sasl_listmech() without a specified mech_list.
2330 => SASL tests which mechs of all available mechs actually work
2331 => three warnings about OTP not working
2332 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2333
2334 With the patch, sasl_listmech() also gets called three times. But now
2335 SASL's mech_list option is set to the server_mech specified in the the
2336 authenticator. Or in other words, the answer from sasl_listmech()
2337 gets limited to just the mech you're testing for (which is different
2338 for each call.)
2339 => the return list contains just 'plain' or 'login', 'cram-md5' or
2340 nothing depending on the value of ob->server_mech.
2341
2342 I've just tested the patch: Authentication still works fine,
2343 unavailable mechs specified in the exim configuration are still
2344 caught, and the auth.log warnings about OTP are gone."
2345
31619da6
PH
2346PH/25 When debugging is enabled, the contents of the command line are added
2347 to the debugging output, even when log_selector=+arguments is not
2348 specified.
2349
bebaf0fc
PH
2350PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2351 answer is "GNU", and only if the return is "GNU/something" is the answer
2352 "Linux".
2353
475fe28a
PH
2354PH/27 $acl_verify_message is now set immediately after the failure of a
2355 verification in an ACL, and so is available in subsequent modifiers. In
2356 particular, the message can be preserved by coding like this:
2357
2358 warn !verify = sender
2359 set acl_m0 = $acl_verify_message
2360
2361 Previously, $acl_verify_message was set only while expanding "message"
2362 and "log_message" when a very denied access.
2363
7e8bec7a
PH
2364PH/28 Modified OS/os.c-Linux with
2365
2366 -#ifndef OS_LOAD_AVERAGE
2367 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2368
2369 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2370 nomenclature these days.)
2371
e4a89c47
PH
2372PH/29 Installed patch from the Sieve maintainer that adds the options
2373 sieve_useraddress and sieve_subaddress to the redirect router.
2374
5ca2a9a1
PH
2375PH/30 In these circumstances:
2376 . Two addresses routed to the same list of hosts;
2377 . First host does not offer TLS;
2378 . First host accepts first address;
2379 . First host gives temporary error to second address;
2380 . Second host offers TLS and a TLS session is established;
2381 . Second host accepts second address.
2382 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2383 and peerdn, if requested) that were in fact used only for the second
2384 address.
7e8bec7a 2385
c688b954
PH
2386PH/31 When doing a callout as part of verifying an address, Exim was not paying
2387 attention to any local part prefix or suffix that was matched by the
2388 router that accepted the address. It now behaves in the same way as it
2389 does for delivery: the affixes are removed from the local part unless
2390 rcpt_include_affixes is set on the transport.
2391
fed77020
PH
2392PH/32 Add the sender address, as F=<...>, to the log line when logging a
2393 timeout during the DATA phase of an incoming message.
2394
7fe1560f
PH
2395PH/33 Sieve envelope tests were broken for match types other than :is. I have
2396 applied a patch sanctioned by the Sieve maintainer.
c688b954 2397
ebb6e6d5
PH
2398PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2399 the uid or gid is negative. A case of a negative gid caused this to be
2400 noticed. The fix allows for either to be negative.
2401
9c4e8f60
PH
2402PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2403 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2404 overlooked.
2405
2406PH/36 The change PH/12 above was broken. Fixed it.
2407
d7174846
PH
2408PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2409 the grounds that routing the same address twice would always produce the
2410 same answer. This might have been true once, but it is certainly no
2411 longer true now. Routing a child address may depend on the previous
2412 routing that produced that child. Some complicated redirection strategies
2413 went wrong when messages had multiple recipients, and made Exim's
2414 behaviour dependent on the order in which the addresses were given.
2415
2416 I have moved the duplicate checking until after the routing is complete.
2417 Exim scans the addresses that are assigned to local and remote
2418 transports, and removes any duplicates. This means that more work will be
2419 done, as duplicates will always all be routed, but duplicates are
2420 presumably rare, so I don't expect this is of any significance.
2421
2422 For deliveries to pipes, files, and autoreplies, the duplicate checking
2423 still happens during the routing process, since they are not going to be
2424 routed further.
2425
cfe75fc3
PH
2426PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2427 It corrects a timeout issue with spamd. This is Ian's comment: "The
2428 background is that sometimes spamd either never reads data from a
2429 connection it has accepted, or it never writes response data. The exiscan
2430 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2431 blindly assumes that writes won't block so it may never time out."
2432
be22d70e
PH
2433PH/39 Allow G after quota size as well as K and M.
2434
0612b098
PH
2435PH/40 The value set for $authenticated_id in an authenticator may not contain
2436 binary zeroes or newlines because the value is written to log lines and
2437 to spool files. There was no check on this. Now the value is run through
2438 the string_printing() function so that such characters are converted to
2439 printable escape sequences.
2440
2e0c1448
PH
2441PH/41 $message_linecount is a new variable that contains the total number of
2442 lines in the message. Compare $body_linecount, which is the count for the
2443 body only.
2444
447d236c
PH
2445PH/42 Exim no longer gives details of delivery errors for specific addresses in
2446 bounce and delay warning messages, except in certain special cases, which
2447 are as follows:
2448
2449 (a) An SMTP error message from a remote host;
2450 (b) A message specified in a :fail: redirection;
2451 (c) A message specified in a "fail" command in a system filter;
2452 (d) A message specified in a FAIL return from the queryprogram router;
2453 (e) A message specified by the cannot_route_message router option.
2454
2455 In these cases only, Exim does include the error details in bounce and
2456 warning messages. There are also a few cases where bland messages such
2457 as "unrouteable address" or "local delivery error" are given.
2458
d20976dc
PH
2459PH/43 $value is now also set for the "else" part of a ${run expansion.
2460
f656d135
PH
2461PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2462 being worked on, but at least Exim now implements the latest version to
2463 play with."
2464
2e2a30b4
PH
2465PH/45 In a pipe transport, although a timeout while waiting for the pipe
2466 process to complete was treated as a delivery failure, a timeout while
2467 writing the message to the pipe was logged, but erroneously treated as a
2468 successful delivery. Such timeouts include transport filter timeouts. For
2469 consistency with the overall process timeout, these timeouts are now
2470 treated as errors, giving rise to delivery failures by default. However,
2471 there is now a new Boolean option for the pipe transport called
2472 timeout_defer, which, if set TRUE, converts the failures into defers for
2473 both kinds of timeout. A transport filter timeout is now identified in
2474 the log output.
2475
9176e9f0
PH
2476PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2477 systems where "make" and "gmake" are different, calling "gmake" at top
2478 level broke things. I've arranged for the value of $(MAKE) to be passed
2479 from the Makefile to this script so that it can call the same version of
2480 "make".
2481
7982096b 2482
bbe902f0
PH
2483A note about Exim versions 4.44 and 4.50
2484----------------------------------------
2485
2486Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2487changes of various kinds. As a consequence, a big documentation update was
2488needed. This delayed the release for rather longer than seemed good, especially
2489in the light of a couple of (minor) security issues. Therefore, the changes
2490that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2491release. So 4.44 and 4.50 are in effect two different branches that both start
2492from 4.43.
2493
2494I have left the 4.50 change log unchanged; it contains all the changes since
24954.43. The change log for 4.44 is below; many of its items are identical to
2496those for 4.50. This seems to be the most sensible way to preserve the
2497historical information.
2498
2499
f7b63901 2500Exim version 4.50
495ae4b0
PH
2501-----------------
2502
5fe762f6
PH
2503 1. Minor wording change to the doc/README.SIEVE file.
2504
139059f6 2505 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2506 computation of the current number of files was incorrect.
495ae4b0 2507
7086e875
PH
2508 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2509 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2510 place.
2511
35af9f61
PH
2512 4. Give more explanation in the error message when the command for a transport
2513 filter fails to execute.
2514
b668c215
PH
2515 5. There are several places where Exim runs a non-Exim command in a
2516 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2517 was being done only for the command run by the queryprogram router. It is
2518 now done for all such subprocesses. The other cases are: ${run, transport
2519 filters, and the commands run by the lmtp and pipe transports.
2520
a494b1e1
PH
2521 6. Added CONFIGURE_GROUP build-time option.
2522
2523 7. Some older OS have a limit of 256 on the maximum number of file
2524 descriptors. Exim was using setrlimit() to set 1000 as a large value
2525 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2526 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2527
c5fcb476
PH
2528 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2529 was an oversight, and furthermore, ever since the addition of extra
2530 controls (e.g. 4.43/32), the checks on when to allow different forms of
2531 "control" were broken. There should now be diagnostics for all cases when a
2532 control that does not make sense is encountered.
2533
69358f02
PH
2534 9. Added the /retain_sender option to "control=submission".
2535
5be20824
PH
253610. $recipients is now available in the predata ACL (oversight).
2537
eb2c0248
PH
253811. Tidy the search cache before the fork to do a delivery from a message
2539 received from the command line. Otherwise the child will trigger a lookup
2540 failure and thereby defer the delivery if it tries to use (for example) a
2541 cached ldap connection that the parent has called unbind on.
2542
2a3eea10
PH
254312. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2544 of $address_data from the recipient verification was clobbered by the
2545 sender verification.
2546
254713. The value of address_data from a sender verification is now available in
2548 $sender_address_data in subsequent conditions in the ACL statement.
2549
23c7ff99
PH
255014. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2551
4deaf07d
PH
255215. Added a new option "connect=<time>" to callout options, to set a different
2553 connection timeout.
2554
926e1192
PH
255516. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2556 was its contents. (It was OK if the option was not defined at all.)
2557
650edc6f
PH
255817. A "Completed" log line is now written for messages that are removed from
2559 the spool by the -Mrm option.
2560
2c7db3f5
PH
256118. New variables $sender_verify_failure and $recipient_verify_failure contain
2562 information about exactly what failed.
2563
3d235903
PH
256419. Added -dd to debug only the daemon process.
2565
7c7ad977
PH
256620. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2567 handles timeouts, both on the server side and network timeouts. Renamed the
2568 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2569
981756db
PH
257021. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2571 It is now set to "smtps".
2572
d4eb88df
PH
257322. $host_address is now set to the target address during the checking of
2574 ignore_target_hosts.
2575
257623. When checking ignore_target_hosts for an ipliteral router, no host name was
2577 being passed; this would have caused $sender_host_name to have been used if
2578 matching the list had actually called for a host name (not very likely,
2579 since this list is usually IP addresses). A host name is now passed as
2580 "[x.x.x.x]".
2581
7d468ab8
PH
258224. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2583 code that specifies a non-restarting handler (typically sigaction() in
2584 modern systems) in an attempt to fix a rare and obscure crash bug.
2585
258625. Narrowed the window for a race in the daemon that could cause it to ignore
2587 SIGCHLD signals. This is not a major problem, because they are used only to
2588 wake it up if nothing else does.
2589
62c0818f
PH
259026. A malformed maildirsize file could cause Exim to calculate negative values
2591 for the mailbox size or file count. Odd effects could occur as a result.
2592 The maildirsize information is now recalculated if the size or filecount
2593 end up negative.
2594
26034054
PH
259527. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2596 support for a long time. Removed HAVE_SYS_VFS_H.
2597
af66f652
PH
259828. Installed the latest version of exipick from John Jetmore.
2599
90af77f4
PH
260029. In an address list, if the pattern was not a regular expression, an empty
2601 subject address (from a bounce message) matched only if the pattern was an
2602 empty string. Non-empty patterns were not even tested. This was the wrong
2603 because it is perfectly reasonable to use an empty address as part of a
2604 database query. An empty address is now tested by patterns that are
2605 lookups. However, all the other forms of pattern expect the subject to
2606 contain a local part and a domain, and therefore, for them, an empty
2607 address still always fails if the pattern is not itself empty.
2608
d8ef3577
PH
260930. Exim went into a mad DNS loop when attempting to do a callout where the
2610 host was specified on an smtp transport, and looking it up yielded more
2611 than one IP address.
2612
5cb8cbc6
PH
261331. Re-factored the code for checking spool and log partition space into a
2614 function that finds that data and another that does the check. The former
2615 is then used to implement four new variables: $spool_space, $log_space,
2616 $spool_inodes, and $log_inodes.
2617
14702f5b
PH
261832. The RFC2047 encoding function was originally intended for short strings
2619 such as real names; it was not keeping to the 75-character limit for
2620 encoded words that the RFC imposes. It now respects the limit, and
2621 generates multiple encoded words if necessary. To be on the safe side, I
2622 have increased the buffer size for the ${rfc2047: expansion operator from
2623 1024 to 2048 bytes.
2624
063b1e99
PH
262533. It is now permitted to omit both strings after an "if" condition; if the
2626 condition is true, the result is "true". As before, when the second string
2627 is omitted, a false condition yields an empty string. This makes it less
2628 cumbersome to write custom ACL and router conditions.
2629
652e1b65
PH
263034. Failure to deliver a bounce message always caused it to be frozen, even if
2631 there was an errors_to setting on the router. The errors_to setting is now
2632 respected.
2633
6f0c9a4f
PH
263435. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2635 canonical form (fully expanded) before being placed in
2636 $sender_host_address.
2637
33397d19
PH
263836. The table in the code that translates DNS record types into text (T_A to
2639 "A" for instance) was missing entries for NS and CNAME. It is just possible
2640 that this could have caused confusion if both these types were looked up
2641 for the same domain, because the text type is used as part of Exim's
2642 per-process caching. But the chance of anyone hitting this buglet seems
2643 very small.
2644
7bb56e1f
PH
264537. The dnsdb lookup has been extended in a number of ways.
2646
2647 (1) There is a new type, "zns", which walks up the domain tree until it
2648 finds some nameserver records. It should be used with care.
2649
ea3bc19b
PH
2650 (2) There is a new type, "mxh", which is like "mx" except that it returns
2651 just the host names, not the priorities.
2652
2653 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2654 looked up. The behaviour when one of the lookups defers can be
2655 controlled by a keyword.
7bb56e1f 2656
ea3bc19b 2657 (4) It is now possible to specify the separator character for use when
7bb56e1f 2658 multiple records are returned.
33397d19 2659
0bcb2a0e
PH
266038. The dnslists ACL condition has been extended: it is now possible to supply
2661 a list of IP addresses and/or domains to be looked up in a particular DNS
2662 domain.
2663
2ac0e484
PH
266439. Added log_selector=+queue_time_overall.
2665
4e1fde53
PH
266640. When running the queue in the test harness, wait just a tad after forking a
2667 delivery process, to get repeatability of debugging output.
2668
de365ded
PH
266941. Include certificate and key file names in error message when GnuTLS fails
2670 to set them up, because the GnuTLS error message doesn't include the name
2671 of the failing file when there is a problem reading it.
2672
f05da2e8
PH
267342. Allow both -bf and -bF in the same test run.
2674
d6453af2
PH
267543. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2676
f7b63901
PH
267744. The "Exiscan patch" is now merged into the mainline Exim source.
2678
267945. Sometimes the final signoff response after QUIT could fail to get
2680 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2681 < 0 before doing a fflush(). This bug looks as though it goes back to the
2682 introduction of TLS in release 3.20, but "sometimes" must have been rare
2683 because the tests only now provoked it.
2684
a444213a
PH
268546. Reset the locale to "C" after calling embedded Perl, in case it was changed
2686 (this can affect the format of dates).
2687
0ec020ea
PH
268847. exim_tidydb, when checking for the continued existence of a message for
2689 which it has found a message-specific retry record, was not finding
2690 messages that were in split spool directories. Consequently, it was
2691 deleting retry records that should have stayed in existence.
2692
b1206957
PH
269348. Steve fixed some bugs in eximstats.
2694
269549. The SPA authentication driver was not abandoning authentication and moving
2696 on to the next authenticator when an expansion was forced to fail,
2697 contradicting the general specification for all authenticators. Instead it
2698 was generating a temporary error. It now behaves as specified.
2699
26dd5a95
PH
270050. The default ordering of permitted cipher suites for GnuTLS was pessimal
2701 (the order specifies the preference for clients). The order is now AES256,
2702 AES128, 3DES, ARCFOUR128.
2703
343b2385
PH
270451. Small patch to Sieve code - explicitly set From: when generating an
2705 autoreply.
2706
1c5466b9
PH
270752. Exim crashed if a remote delivery caused a very long error message to be
2708 recorded - for instance if somebody sent an entire SpamAssassin report back
2709 as a large number of 550 error lines. This bug was coincidentally fixed by
2710 increasing the size of one of Exim's internal buffers (big_buffer) that
2711 happened as part of the Exiscan merge. However, to be on the safe side, I
2712 have made the code more robust (and fixed the comments that describe what
2713 is going on).
2714
55ee9ee3
PH
271553. Now that there can be additional text after "Completed" in log lines (if
2716 the queue_time_overall log selector is set), a one-byte patch to exigrep
2717 was needed to allow it to recognize "Completed" as not the last thing in
2718 the line.
2719
d38f8232
PH
272054. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2721 patch that reportedly fixes this has been added. I am not expert enough to
2722 create a test for it. This is what the patch creator wrote:
2723
2724 "I found a little strange behaviour of ldap code when working with
2725 Windows 2003 AD Domain, where users was placed in more than one
2726 Organization Units. When I tried to give exim partial DN, the exit code
2727 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2728 But simultaneously result of request was absolutely normal ldap result,
2729 so I produce this patch..."
2730
3295e65b
PH
2731 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2732 REFERENCE, so I have modified the code to exclude the patch when that macro
2733 is not defined.
2734
7102e136
PH
273555. Some experimental protocols are using DNS PTR records for new purposes. The
2736 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2737 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2738 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2739 CAN-2005-0021
7102e136 2740
3ca0ba97
PH
274156. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2742
c2bcbe20
PH
274357. Double the size of the debug message buffer (to 2048) so that more of very
2744 long debug lines gets shown.
2745
18ce445d
PH
274658. The exicyclog utility now does better if the number of log files to keep
2747 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2748
1f5b4c3d
PH
274959. Two changes related to the smtp_active_hostname option:
2750
2751 (1) $smtp_active_hostname is now available as a variable.
2752 (2) The default for smtp_banner uses $smtp_active_hostname instead
2753 of $primary_hostname.
2754
b975ba52
PH
275560. The host_aton() function is supposed to be passed a string that is known
2756 to be a valid IP address. However, in the case of IPv6 addresses, it was
2757 not checking this. This is a hostage to fortune. Exim now panics and dies
2758 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2759 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2760 components; fortuitously, this particular loophole had already been fixed
2761 by change 4.50/55 above.
2762
2763 If there are any other similar loopholes, the new check in host_aton()
2764 itself should stop them being exploited. The report I received stated that
2765 data on the command line could provoke the exploit when Exim was running as
2766 exim, but did not say which command line option was involved. All I could
2767 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2768 running as the user.
ea3a6f44 2769 CAN-2005-0021
85b87bc2
PH
2770
277161. There was a buffer overflow vulnerability in the SPA authentication code
2772 (which came originally from the Samba project). I have added a test to the
2773 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2774 CAN-2005-0022
b975ba52 2775
17ffcae7
PH
277662. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2777 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2778
d95f9fdb
PH
277963. The daemon start-up calls getloadavg() while still root for those OS that
2780 need the first call to be done as root, but it missed one case: when
2781 deliver_queue_load_max is set with deliver_drop_privilege. This is
2782 necessary for the benefit of the queue runner, because there is no re-exec
2783 when deliver_drop_privilege is set.
2784
86b8287f
PH
278564. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2786 This has been fixed.
2787
60dc5e56
PH
278865. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2789 was in use, was not putting the data itself into the right store pool;
2790 consequently, it could be overwritten for a subsequent message in the same
2791 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2792 the caching.)
2793
533244af
PH
279466. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2795
a5a28604
PH
279667. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2797 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2798 the function were treating the return as a boolean value, which happened to
2799 work because 0=false and not-0=true, but is not correct code.
2800
7e634d24
PH
280168. The host_aton() function was not handling scoped IPv6 addresses (those
2802 with, for example, "%eth0" on the end) correctly.
2803
3e11c26b
PH
280469. Fixed some compiler warnings in acl.c for the bitmaps specified with
2805 negated items (that is, ~something) in unsigned ints. Some compilers
2806 apparently mutter when there is no cast.
2807
6729cf78
PH
280870. If an address verification called from an ACL failed, and did not produce a
2809 user-specific message (i.e. there was only a "system" message), nothing was
2810 put in $acl_verify_message. In this situation, it now puts the system
2811 message there.
2812
00f00ca5
PH
281371. Change 4.23/11 added synchronization checking at the start of an SMTP
2814 session; change 4.31/43 added the unwanted input to the log line - except
2815 that it did not do this in the start of session case. It now does.
2816
c9bdd01c
PH
281772. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2818 This is wrong and can cause the other end to generate a synchronization
2819 error if it is another Exim or anything else that does the synchronization
2820 check. A QUIT command is no longer sent after a timeout.
2821
d43194df
PH
282273. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2823 during host lookups.
2824
fe5b5d0b
PH
282574. The defer_ok option of callout verification was not working if it was used
2826 when verifying addresses in header lines, that is, for this case:
2827
2828 verify = header_sender/callout=defer_ok
2829
76a2d7ba
PH
283075. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2831 those file descriptors could be used for SMTP connections. If anything
2832 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2833 could be sent to the SMTP client, causing chaos. The daemon now opens
2834 stdin, stdout, and stderr to /dev/null when it puts itself into the
2835 background.
2836
283776. Arrange for output from Perl's "warn" command to be written to Exim's main
2838 log by default. The user can override this with suitable Perl magic.
2839
04f7d5b9
PH
284077. The use of log_message on a "discard" ACL verb, which is supposed to add to
2841 the log message when discard triggers, was not working for the DATA ACL or
2842 for the non-SMTP ACL.
2843
bc60667e
PH
284478. Error message wording change in sieve.c.
2845
bb6e88ff
PH
284679. If smtp_accept_max_per_host was set, the number of connections could be
2847 restricted to fewer than expected, because the daemon was trying to set up
2848 a new connection before checking whether the processes handling previous
2849 connections had finished. The check for completed processes is now done
2850 earlier. On busy systems, this bug wouldn't be noticed because something
2851 else would have woken the daemon, and it would have reaped the completed
2852 process earlier.
2853
1e70f85b
PH
285480. If a message was submitted locally by a user whose login name contained one
2855 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2856 It caused a spool format error. I have fixed the spool reading code. A
2857 related problem was that the "from" clause in the Received: line became
2858 illegal because of the space(s). It is now covered by ${quote_local_part.
2859
286081. Included the latest eximstats from Steve (adds average sizes to HTML Top
2861 tables).
2862
4e01f9d6
PH
286382. Updated OS/Makefile-AIX as per message from Mike Meredith.
2864
1ee1cef2
PH
286583. Patch from Sieve maintainer to fix unterminated string problem in
2866 "vacation" handling.
2867
6e2b4ccc
PH
286884. Some minor changes to the Linux configuration files to help with other
2869 OS variants using glibc.
2870
8e669ac1
PH
287185. One more patch for Sieve to update vacation handling to latest spec.
2872
495ae4b0 2873
bbe902f0
PH
2874----------------------------------------------------
2875See the note above about the 4.44 and 4.50 releases.
2876----------------------------------------------------
2877
2878
2879Exim version 4.44
2880-----------------
2881
2882 1. Change 4.43/35 introduced a bug that caused file counts to be
2883 incorrectly computed when quota_filecount was set in an appendfile
2884 transport
2885
2886 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2887 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2888 place.
2889
2890 3. Give more explanation in the error message when the command for a transport
2891 filter fails to execute.
2892
2893 4. There are several places where Exim runs a non-Exim command in a
2894 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2895 was being done only for the command run by the queryprogram router. It is
2896 now done for all such subprocesses. The other cases are: ${run, transport
2897 filters, and the commands run by the lmtp and pipe transports.
2898
2899 5. Some older OS have a limit of 256 on the maximum number of file
2900 descriptors. Exim was using setrlimit() to set 1000 as a large value
2901 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2902 systems. I've change it so that if it can't get 1000, it tries for 256.
2903
2904 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2905 was an oversight, and furthermore, ever since the addition of extra
2906 controls (e.g. 4.43/32), the checks on when to allow different forms of
2907 "control" were broken. There should now be diagnostics for all cases when a
2908 control that does not make sense is encountered.
2909
2910 7. $recipients is now available in the predata ACL (oversight).
2911
2912 8. Tidy the search cache before the fork to do a delivery from a message
2913 received from the command line. Otherwise the child will trigger a lookup
2914 failure and thereby defer the delivery if it tries to use (for example) a
2915 cached ldap connection that the parent has called unbind on.
2916
2917 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2918 of $address_data from the recipient verification was clobbered by the
2919 sender verification.
2920
292110. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2922 was its contents. (It was OK if the option was not defined at all.)
2923
292411. A "Completed" log line is now written for messages that are removed from
2925 the spool by the -Mrm option.
2926
292712. $host_address is now set to the target address during the checking of
2928 ignore_target_hosts.
2929
293013. When checking ignore_target_hosts for an ipliteral router, no host name was
2931 being passed; this would have caused $sender_host_name to have been used if
2932 matching the list had actually called for a host name (not very likely,
2933 since this list is usually IP addresses). A host name is now passed as
2934 "[x.x.x.x]".
2935
293614. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2937 code that specifies a non-restarting handler (typically sigaction() in
2938 modern systems) in an attempt to fix a rare and obscure crash bug.
2939
294015. Narrowed the window for a race in the daemon that could cause it to ignore
2941 SIGCHLD signals. This is not a major problem, because they are used only to
2942 wake it up if nothing else does.
2943
294416. A malformed maildirsize file could cause Exim to calculate negative values
2945 for the mailbox size or file count. Odd effects could occur as a result.
2946 The maildirsize information is now recalculated if the size or filecount
2947 end up negative.
2948
294917. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2950 support for a long time. Removed HAVE_SYS_VFS_H.
2951
ea3a6f44 295218. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2953
295419. Allow an empty sender to be matched against a lookup in an address list.
2955 Previously the only cases considered were a regular expression, or an
2956 empty pattern.
2957
295820. Exim went into a mad DNS lookup loop when doing a callout where the
2959 host was specified on the transport, if the DNS lookup yielded more than
2960 one IP address.
2961
ea3a6f44
NM
296221. The RFC2047 encoding function was originally intended for short strings
2963 such as real names; it was not keeping to the 75-character limit for
2964 encoded words that the RFC imposes. It now respects the limit, and
2965 generates multiple encoded words if necessary. To be on the safe side, I
2966 have increased the buffer size for the ${rfc2047: expansion operator from
2967 1024 to 2048 bytes.
bbe902f0 2968
ea3a6f44
NM
296922. Failure to deliver a bounce message always caused it to be frozen, even if
2970 there was an errors_to setting on the router. The errors_to setting is now
2971 respected.
bbe902f0
PH
2972
297323. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2974 canonical form (fully expanded) before being placed in
2975 $sender_host_address.
2976
297724. Updated eximstats to version 1.33
2978
ea3a6f44
NM
297925. Include certificate and key file names in error message when GnuTLS fails
2980 to set them up, because the GnuTLS error message doesn't include the name
2981 of the failing file when there is a problem reading it.
bbe902f0
PH
2982
298326. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2984 As per change 25.
bbe902f0 2985
ea3a6f44
NM
298627. Reset the locale to "C" after calling embedded Perl, in case it was changed
2987 (this can affect the format of dates).
bbe902f0 2988
ea3a6f44
NM
298928. exim_tidydb, when checking for the continued existence of a message for
2990 which it has found a message-specific retry record, was not finding
2991 messages that were in split spool directories. Consequently, it was
2992 deleting retry records that should have stayed in existence.
bbe902f0
PH
2993
299429. eximstats updated to version 1.35
2995 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
2996 1.35 - bugfix such that pie charts by volume are generated correctly
2997
ea3a6f44
NM
299830. The SPA authentication driver was not abandoning authentication and moving
2999 on to the next authenticator when an expansion was forced to fail,
3000 contradicting the general specification for all authenticators. Instead it
3001 was generating a temporary error. It now behaves as specified.
bbe902f0 3002
ea3a6f44
NM
300331. The default ordering of permitted cipher suites for GnuTLS was pessimal
3004 (the order specifies the preference for clients). The order is now AES256,
3005 AES128, 3DES, ARCFOUR128.
bbe902f0 3006
ea3a6f44
NM
300731. Small patch to Sieve code - explicitly set From: when generating an
3008 autoreply.
bbe902f0 3009
ea3a6f44
NM
301032. Exim crashed if a remote delivery caused a very long error message to be
3011 recorded - for instance if somebody sent an entire SpamAssassin report back
3012 as a large number of 550 error lines. This bug was coincidentally fixed by
3013 increasing the size of one of Exim's internal buffers (big_buffer) that
3014 happened as part of the Exiscan merge. However, to be on the safe side, I
3015 have made the code more robust (and fixed the comments that describe what
3016 is going on).
bbe902f0 3017
ea3a6f44
NM
301833. Some experimental protocols are using DNS PTR records for new purposes. The
3019 keys for these records are domain names, not reversed IP addresses. The
3020 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3021 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3022 CAN-2005-0021
3023
ea3a6f44
NM
302434. The host_aton() function is supposed to be passed a string that is known
3025 to be a valid IP address. However, in the case of IPv6 addresses, it was
3026 not checking this. This is a hostage to fortune. Exim now panics and dies
3027 if the condition is not met. A case was found where this could be provoked
3028 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3029 components; fortuitously, this particular loophole had already been fixed
3030 by change 4.50/55 or 4.44/33 above.
3031
3032 If there are any other similar loopholes, the new check in host_aton()
3033 itself should stop them being exploited. The report I received stated that
3034 data on the command line could provoke the exploit when Exim was running as
3035 exim, but did not say which command line option was involved. All I could
3036 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3037 running as the user.
bbe902f0
PH
3038 CAN-2005-0021
3039
ea3a6f44
NM
304035. There was a buffer overflow vulnerability in the SPA authentication code
3041 (which came originally from the Samba project). I have added a test to the
3042 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3043 CAN-2005-0022
3044
ea3a6f44
NM
304536. The daemon start-up calls getloadavg() while still root for those OS that
3046 need the first call to be done as root, but it missed one case: when
3047 deliver_queue_load_max is set with deliver_drop_privilege. This is
3048 necessary for the benefit of the queue runner, because there is no re-exec
3049 when deliver_drop_privilege is set.
bbe902f0 3050
ea3a6f44
NM
305137. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3052 was in use, was not putting the data itself into the right store pool;
3053 consequently, it could be overwritten for a subsequent message in the same
3054 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3055 the caching.)
bbe902f0 3056
ea3a6f44
NM
305738. Sometimes the final signoff response after QUIT could fail to get
3058 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3059 < 0 before doing a fflush(). This bug looks as though it goes back to the
3060 introduction of TLS in release 3.20, but "sometimes" must have been rare
3061 because the tests only now provoked it.
bbe902f0
PH
3062
3063
495ae4b0
PH
3064Exim version 4.43
3065-----------------
3066
3067 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3068 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3069 Now it returns an integer. A number of calls were still expecting a T/F
3070 return. Fortuitously, in all cases, the tests worked in OK situations,
3071 which is the norm. However, things would have gone wrong on any write
3072 failures on the smtp file descriptor. This function is used when sending
3073 messages over SMTP and also when doing verify callouts.
3074
3075 2. When Exim is called to do synchronous delivery of a locally submitted
3076 message (the -odf or -odi options), it no longer closes stderr before doing
3077 the delivery.
3078
3079 3. Implemented the mua_wrapper option.
3080
3081 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3082
3083 5. Implemented the functions header_remove(), header_testname(),
3084 header_add_at_position(), and receive_remove_recipient(), and exported them
3085 to local_scan().
3086
3087 6. If an ACL "warn" statement specified the addition of headers, Exim already
3088 inserted X-ACL-Warn: at the start if there was no header name. However, it
3089 was not making this test for the second and subsequent header lines if
3090 there were newlines in the string. This meant that an invalid header could
3091 be inserted if Exim was badly configured.
3092
3093 7. Allow an ACL "warn" statement to add header lines at the start or after all
3094 the Received: headers, as well as at the end.
3095
3096 8. Added the rcpt_4xx retry error code.
3097
3098 9. Added postmaster_mailfrom=xxx to callout verification option.
3099
310010. Added mailfrom=xxxx to the callout verification option, for verify=
3101 header_sender only.
3102
310311. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3104 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3105
310612. Inserted some casts to stop certain compilers warning when using pointer
3107 differences as field lengths or precisions in printf-type calls (mostly
3108 affecting debugging statements).
3109
311013. Added optional readline() support for -be (dynamically loaded).
3111
311214. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3113 same clock tick as a message's arrival, so that its received time was the
3114 same as the "first fail" time on the retry record, and that message
3115 remained on the queue past the ultimate address timeout, every queue runner
3116 would try a delivery (because it was past the ultimate address timeout) but
3117 after another failure, the ultimate address timeout, which should have then
3118 bounced the address, did not kick in. This was a "< instead of <=" error;
3119 in most cases the first failure would have been in the next clock tick
3120 after the received time, and all would be well.
3121
312215. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3123 being recognized when the domain list was tested by the match_domain
3124 condition in an expansion string.
3125
312616. Added the ${str2b64: operator.
3127
312817. Exim was always calling setrlimit() to set a large limit for the number of
3129 processes, without checking whether the existing limit was already
3130 adequate. (It did check for the limit on file descriptors.) Furthermore,
3131 errors from getrlimit() and setrlimit() were being ignored. Now they are
3132 logged to the main and panic logs, but Exim does carry on, to try to do its
3133 job under whatever limits there are.
3134
313518. Imported PCRE 5.0.
3136
313719. Trivial typo in log message " temporarily refused connection" (the leading
3138 space).
3139
314020. If the log selector return_path_on_delivery was set and an address was
3141 redirected to /dev/null, the delivery process crashed because it assumed
3142 that a return path would always be set for a "successful" delivery. In this
3143 case, the whole delivery is bypassed as an optimization, and therefore no
3144 return path is set.
3145
314621. Internal re-arrangement: the function for sending a challenge and reading
3147 a response while authentication was assuming a zero-terminated challenge
3148 string. It's now changed to take a pointer and a length, to allow for
3149 binary data in such strings.
3150
315122. Added the cyrus_sasl authenticator (code supplied by MBM).
3152
315323. Exim was not respecting finduser_retries when seeking the login of the
3154 uid under which it was called; it was always trying 10 times. (The default
3155 setting of finduser_retries is zero.) Also, it was sleeping after the final
3156 failure, which is pointless.
3157
315824. Implemented tls_on_connect_ports.
3159
316025. Implemented acl_smtp_predata.
3161
316226. If the domain in control=submission is set empty, Exim assumes that the
3163 authenticated id is a complete email address when it generates From: or
3164 Sender: header lines.
3165
316627. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3167 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3168 chown and chgrp in /bin and hostname in /usr/bin.
3169
317028. Exim was keeping the "process log" file open after each use, just as it
3171 does for the main log. This opens the possibility of it remaining open for
3172 long periods when the USR1 signal hits a daemon. Occasional processlog
3173 errors were reported, that could have been caused by this. Anyway, it seems
3174 much more sensible not to leave this file open at all, so that is what now
3175 happens.
3176
317729. The long-running daemon process does not normally write to the log once it
3178 has entered its main loop, and it closes the log before doing so. This is
3179 so that log files can straightforwardly be renamed and moved. However,
3180 there are a couple of unusual error situations where the daemon does write
3181 log entries, and I had neglected to close the log afterwards.
3182
318330. The text of an SMTP error response that was received during a remote
3184 delivery was being truncated at 512 bytes. This is too short for some of
3185 the long messages that one sometimes sees. I've increased the limit to
3186 1024.
3187
318831. It is now possible to make retry rules that apply only when a message has a
3189 specific sender, in particular, an empty sender.
3190
319132. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3192 it possible to be selective about when SMTP synchronization is enforced.
3193
319433. Added "control = caseful_local_part" and "control = "caselower_local_part".
3195
319632. Implemented hosts_connection_nolog.
3197
319833. Added an ACL for QUIT.
3199
320034. Setting "delay_warning=" to disable warnings was not working; it gave a
3201 syntax error.
3202
320335. Added mailbox_size and mailbox_filecount to appendfile.
3204
320536. Added control = no_multiline_responses to ACLs.
3206
320737. There was a bug in the logic of the code that waits for the clock to tick
3208 in the case where the clock went backwards by a substantial amount such
3209 that the microsecond fraction of "now" was more than the microsecond
3210 fraction of "then" (but the whole seconds number was less).
3211
321238. Added support for the libradius Radius client library this is found on
3213 FreeBSD (previously only the radiusclient library was supported).
3214
3215
3216Exim version 4.42
3217-----------------
3218
3219 1. When certain lookups returned multiple values in the form name=value, the
3220 quoting of the values was not always being done properly. Specifically:
3221 (a) If the value started with a double quote, but contained no whitespace,
3222 it was not quoted.
3223 (b) If the value contained whitespace other than a space character (i.e.
3224 tabs or newlines or carriage returns) it was not quoted.
3225 This fix has been applied to the mysql and pgsql lookups by writing a
3226 separate quoting function and calling it from the lookup code. The fix
3227 should probably also be applied to nisplus, ibase and oracle lookups, but
3228 since I cannot test any of those, I have not disturbed their existing code.
3229
3230 2. A hit in the callout cache for a specific address caused a log line with no
3231 reason for rejecting RCPT. Now it says "Previous (cached) callout
3232 verification failure".
3233
3234 3. There was an off-by-one bug in the queryprogram router. An over-long
3235 return line was truncated at 256 instead of 255 characters, thereby
3236 overflowing its buffer with the terminating zero. As well as fixing this, I
3237 have increased the buffer size to 1024 (and made a note to document this).
3238
3239 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3240 when Exim is waiting for an SMTP response from a remote server, Exim
3241 restarts its select() call on the socket, thereby resetting its timeout.
3242 This is not a problem when such interrupts are rare. Somebody set up a cron
3243 job to run exiwhat every 2 minutes, which is less than the normal select()
3244 timeout (5 or 10 minutes). This meant that the select() timeout never
3245 kicked in because it was always reset. I have fixed this by comparing the
3246 time when an interrupt arrives with the time at the start of the first call
3247 to select(). If more time than the timeout has elapsed, the interrupt is
3248 treated as a timeout.
3249
3250 5. Some internal re-factoring in preparation for the addition of Sieve
3251 extensions (by MH). In particular, the "personal" test is moved to a
3252 separate function, and given an option for scanning Cc: and Bcc: (which is
3253 not set for Exim filters).
3254
3255 6. When Exim created an email address using the login of the caller as the
3256 local part (e.g. when creating a From: or Sender: header line), it was not
3257 quoting the local part when it contained special characters such as @.
3258
3259 7. Installed new OpenBSD configuration files.
3260
3261 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3262 try to make them clearer.
3263
3264 9. Callout options, other than the timeout value, were being ignored when
3265 verifying sender addresses in header lines. For example, when using
3266
3267 verify = header_sender/callout=no_cache
3268
3269 the cache was (incorrectly) being used.
3270
327110. Added a missing instance of ${EXE} to the exim_install script; this affects
3272 only the Cygwin environment.
3273
327411. When return_path_on_delivery was set as a log selector, if different remote
3275 addresses in the same message used different return paths and parallel
3276 remote delivery occurred, the wrong values would sometimes be logged.
3277 (Whenever a remote delivery process finished, the return path value from
3278 the most recently started remote delivery process was logged.)
3279
328012. RFC 3848 specifies standard names for the "with" phrase in Received: header
3281 lines when AUTH and/or TLS are in use. This is the "received protocol"
3282 field. Exim used to use "asmtp" for authenticated SMTP, without any
3283 indication (in the protocol name) for TLS use. Now it follows the RFC and
3284 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3285 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3286 names appear in log lines as well as in Received: header lines.
3287
328813. Installed MH's patches for Sieve to add the "copy" and "vacation"
3289 extensions, and comparison tests, and to fix some bugs.
3290
329114. Changes to the "personal" filter test:
3292
3293 (1) The test was buggy in that it was just doing the equivalent of
3294 "contains" tests on header lines. For example, if a user's address was
3295 anne@some.where, the "personal" test would incorrectly be true for
3296
3297 To: susanne@some.where
3298
3299 This test is now done by extracting each address from the header in turn,
3300 and checking the entire address. Other tests that are part of "personal"
3301 are now done using regular expressions (for example, to check local parts
3302 of addresses in From: header lines).
3303
3304 (2) The list of non-personal local parts in From: addresses has been
3305 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3306 taken from the Sieve specification recommendations.
3307
3308 (3) If the message contains any header line starting with "List-" it is
3309 treated as non-personal.
3310
3311 (4) The test for "circular" in the Subject: header line has been removed
3312 because it now seems ill-conceived.
3313
331415. Minor typos in src/EDITME comments corrected.
3315
331616. Installed latest exipick from John Jetmore.
3317
331817. If headers_add on a router specified a text string that was too long for
3319 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3320 of string_sprintf() is now avoided.
3321
332218. $message_body_size was not set (it was always zero) when running the DATA
3323 ACL and the local_scan() function.
3324
332519. For the "mail" command in an Exim filter, no default was being set for
3326 the once_repeat time, causing a random time value to be used if "once" was
3327 specified. (If the value happened to be <= 0, no repeat happened.) The
3328 default is now 0s, meaning "never repeat". The "vacation" command was OK
3329 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3330 (I found it when inspecting the code).
3331
333220. There is now an overall timeout for performing a callout verification. It
3333 defaults to 4 times the callout timeout, which applies to individual SMTP
3334 commands during the callout. The overall timeout applies when there is more
3335 than one host that can be tried. The timeout is checked before trying the
3336 next host. This prevents very long delays if there are a large number of
3337 hosts and all are timing out (e.g. when the network connections are timing
3338 out). The value of the overall timeout can be changed by specifying an
3339 additional sub-option for "callout", called "maxwait". For example:
3340
3341 verify = sender/callout=5s,maxwait=20s
3342
334321. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3344 to the end before writing, but this should make it even safer).
3345
334622. Exim was forgetting that it had advertised PIPELINING for the second and
3347 subsequent messages on an SMTP connection. It was also not resetting its
3348 memory on STARTTLS and an internal HELO.
3349
335023. When Exim logs an SMTP synchronization error within a session, it now
3351 records whether PIPELINING has been advertised or not.
3352
335324. Added 3 instances of "(long int)" casts to time_t variables that were being
3354 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3355 rather than long int.
3356
335725. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3358
335926. Added the never_mail option to autoreply.
3360
3361
3362Exim version 4.41
3363-----------------
3364
3365 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3366 crash if the getsockname() call failed; this can happen if a connection is
3367 closed very soon after it is established. The problem was simply in the
3368 order in which certain operations were done, causing Exim to try to write
3369 to the SMTP stream before it had set up the file descriptor. The bug has
3370 been fixed by making things happen in the correct order.
3371
3372
3373Exim version 4.40
3374-----------------
3375
3376 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3377 before the connection was closed, thus losing the rejection response.
3378
3379 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3380 some early Solaris releases, but causes trouble in current releases where
3381 socklen_t is defined.
3382
3383 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3384 always exist.
3385
3386 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3387 configured.
3388
3389 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3390 that releasing the top of it at the end releases what was used for sub-
3391 expansions (unless the block got too big). However, discard this block if
3392 the first thing is a variable or header, so that we can use its block when
3393 it is dynamic (useful for very large $message_headers, for example).
3394
3395 6. Lookups now cache *every* query, not just the most recent. A new, separate
3396 store pool is used for this. It can be recovered when all lookup caches are
3397 flushed. Lookups now release memory at the end of their result strings.
3398 This has involved some general refactoring of the lookup sources.
3399
3400 7. Some code has been added to the store_xxx() functions to reduce the amount
3401 of flapping under certain conditions.
3402
3403 8. log_incoming_interface used to affect only the <= reception log lines. Now
3404 it causes the local interface and port to be added to several more SMTP log
3405 lines, for example "SMTP connection from", and rejection lines.
3406
3407 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3408
340910. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3410
341111. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3412 could be overwritten at the end of the current message (or the start of a
3413 new message if it was set in a HELO ACL). The value is now preserved for
3414 the duration of the SMTP connection.
3415
341612. If a transport had a headers_rewrite setting, and a matching header line
3417 contained an unqualified address, that address was qualified, even if it
3418 did not match any rewriting rules. The underlying bug was that the values
3419 of the flags that permit the existence of unqualified sender and recipient
3420 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3421 non-local messages, and by -bnq for local messages) were not being
3422 preserved with the message after it was received.
3423
342413. When Exim was logging an SMTP synchronization error, it could sometimes log
3425 "next input=" as part of the text comprising the host identity instead of
3426 the correct text. The code was using the same buffer for two different
3427 strings. However, depending on which order the printing function evaluated
3428 its arguments, the bug did not always show up. Under Linux, for example, my
3429 test suite worked just fine.
3430
343114. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3432 doesn't work with some older versions of Perl. It has been changed to "my",
3433 which in any case is probably the better facility to use.
3434
343515. A really picky compiler found some instances of statements for creating
3436 error messages that either had too many or two few arguments for the format
3437 string.
3438
343916. The size of the buffer for calls to the DNS resolver has been increased
3440 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3441 for addresses that have a lot of PTR records. This alleviates a problem; it
3442 does not fully solve it.
3443
344417. A dnsdb lookup for PTR records that receives more data than will fit in the
3445 buffer now truncates the list and logs the incident, which is the same
3446 action as happens when Exim is looking up a host name and its aliases.
3447 Previously in this situation something unpredictable would happen;
3448 sometimes it was "internal error: store_reset failed".
3449
345018. If a server dropped the connection unexpectedly when an Exim client was
3451 using GnuTLS and trying to read a response, the client delivery process
3452 crashed while trying to generate an error log message.
3453
345419. If a "warn" verb in an ACL added multiple headers to a message in a single
3455 string, for example:
3456
3457 warn message = H1: something\nH2: something
3458
3459 the text was added as a single header line from Exim's point of view
3460 though it ended up OK in the delivered message. However, searching for the
3461 second and subsequent header lines using $h_h2: did not work. This has been
3462 fixed. Similarly, if a system filter added multiple headers in this way,
3463 the routers could not see them.
3464
346520. Expanded the error message when iplsearch is called with an invalid key to
3466 suggest using net-iplsearch in a host list.
3467
346821. When running tests using -bh, any delays imposed by "delay" modifiers in
3469 ACLs are no longer actually imposed (and a message to that effect is
3470 output).
3471
347222. If a "gecos" field in a passwd entry contained escaped characters, in
3473 particular, if it contained a \" sequence, Exim got it wrong when building
3474 a From: or a Sender: header from that name. A second bug also caused
3475 incorrect handling when an unquoted " was present following a character
3476 that needed quoting.
3477
347823. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3479 was not being matched caselessly.
3480
348124. Arranged for all hyphens in the exim.8 source to be escaped with
3482 backslashes.
3483
348425. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3485 properly. Recipient callout cache records were still being keyed to include
3486 the sender, even when use_sender was set false. This led to far more
3487 callouts that were necessary. The sender is no longer included in the key
3488 when use_sender is false.
3489
349026. Added "control = submission" modifier to ACLs.
3491
349227. Added the ${base62d: operator to decode base 62 numbers.
3493
349428. dnsdb lookups can now access SRV records.
3495
349629. CONFIGURE_OWNER can be set at build time to define an alternative owner for