Implement "control = debug" ACL control. Fixes: #937
[exim.git] / doc / doc-txt / ChangeLog
CommitLineData
ed7f7860 1$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.623 2010/06/06 00:27:52 pdp Exp $
495ae4b0
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2
3Change log file for Exim from version 4.21
4-------------------------------------------
5
97fd1e48 6Exim version 4.73
ed7f7860 7-----------------
97fd1e48
PP
8
9PP/01 Date: & Message-Id: revert to normally being appended to a message,
10 only prepend for the Resent-* case. Fixes regression introduced in
11 Exim 4.70 by NM/22 for Bugzilla 607.
12
6901c596
PP
13PP/02 Include check_rfc2047_length in configure.default because we're seeing
14 increasing numbers of administrators be bitten by this.
15
a8c8d6b5
JJ
16JJ/01 Added DISABLE_DKIM and comment to src/EDITME
17
77bb000f
PP
18PP/03 Bugzilla 994: added openssl_options main configuration option.
19
a29e5231
PP
20PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
21
22PP/05 Bugzilla 834: provide a permit_codedump option for pipe transports.
23
55c75993
PP
24PP/06 Adjust NTLM authentication to handle SASL Initial Response.
25
453a6645
PP
26PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
27 without a peer certificate (I believe), leading to a segfault because of
28 an assumption that peers always have certificates. Be a little more
29 paranoid. Problem reported by Martin Tscholak.
30
8544e77a
PP
31PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
32 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
33 NB: ClamAV planning to remove STREAM in "middle of 2010".
34
83e029d5
PP
35PP/09 Implemented reverse_ip expansion operator.
36
ed7f7860
PP
37PP/10 Bugzilla 937: provide a "debug" ACL control.
38
55c75993 39
465e92cf
JJ
40Exim version 4.72
41-----------------
42
453a6645
PP
43JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
44 $data_path, and $header_path variables; fixed documentation bugs and
45 typos
465e92cf 46
453a6645
PP
47JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
48 exipick to access non-standard spools, including the "frozen" queue
49 (Finput)
edae0343 50
9bd3e22c
NM
51NM/01 Bugzilla 965: Support mysql stored procedures.
52 Patch from Alain Williams
53
bb576ff7
NM
54NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
55
5a1a5845
NM
56NM/03 Bugzilla 955: Documentation fix for max_rcpts.
57 Patch from Andreas Metzler
58
981a9fad
NM
59NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
60 Patch from Kirill Miazine
61
7fc497ee
NM
62NM/05 Bugzilla 671: Added umask to procmail example.
63
1a41defa
JJ
64JJ/03 installed exipick 20100323.0, fixing doc bug
65
a466095c 66NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 67 directory. Notification and patch from Dan Rosenberg.
a466095c 68
94a6bd0b
NM
69TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
70
71TK/02 Improve log output when DKIM signing operation fails.
72
73MH/01 Treat the transport option dkim_domain as a colon separated
74 list, not as a single string, and sign the message with each element,
75 omitting multiple occurences of the same signer.
76
c1b141a8
NM
77NM/07 Null terminate DKIM strings, Null initialise DKIM variable
78 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 79
b26eacf1 80NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
81 Patch by Simon Arlott
82
179c5980 83PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 84 MBX locking. Notification from Dan Rosenberg.
179c5980 85
9bd3e22c 86
7c6d71af
NM
87Exim version 4.71
88-----------------
89
90TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body
91
f013fb92
NM
92NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
93
0eb8eedd
NM
94NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
95
663ee6d9
NM
96NM/03 Bugzilla 847: Enable DNSDB lookup by default.
97
177ebd9b
NM
98NM/04 Bugzilla 915: Flag broken perl installation during build.
99
7c6d71af 100
210f147e
NM
101Exim version 4.70
102-----------------
103
cdd3bb85 104TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 105 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
106
107TK/02 Write list of recipients to X-Envelope-Sender header when building
108 the mbox-format spool file for content scanning (suggested by Jakob
109 Hirsch)
110
111TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
112 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 113 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
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114
115TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
116 by Mark Daniel Reidel <mr@df.eu>.
117
210f147e
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118NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
119 When building exim an external PCRE library is now needed -
120 PCRE is a system library on the majority of modern systems.
121 See entry on PCRE_LIBS in EDITME file.
122
deafd5b3
NM
123NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
124 conversation. Added nologin parameter to request.
125 Patch contributed by Kirill Miazine
126
089793a4
TF
127TF/01 Do not log submission mode rewrites if they do not change the address.
128
5f16ca82
TF
129TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
130
dae9d94e
NM
131NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
132 log files in place. Contributed by Roberto Lima
133
3f0da4d0
NM
134NM/04 Bugzilla 667: close socket used by dovecot authenticator
135
06864c44
TF
136TF/03 Bugzilla 615: When checking the local_parts router precondition
137 after a local_part_suffix or local_part_prefix option, Exim now
138 does not use the address's named list lookup cache, since this
139 contains cached lookups for the whole local part.
140
65a7d8c3
NM
141NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
142 Robert Millan. Documentation is in experimental-spec.txt
143
23510047 144TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 145
7d8eec3a 146NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000
5f28a6e8 147
7d8eec3a 148NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
6c588e74
NM
149 Patch provided by Jan Srzednicki
150
89dec7b6
TF
151TF/05 Leading white space used to be stripped from $spam_report which
152 wrecked the formatting. Now it is preserved.
5f28a6e8 153
a99de90c
TF
154TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
155 that they are available at delivery time.
156
e2803e40
TF
157TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
158
7199e1ee
TF
159TF/08 TLS error reporting now respects the incoming_interface and
160 incoming_port log selectors.
161
e276e04b
TF
162TF/09 Produce a more useful error message if an SMTP transport's hosts
163 setting expands to an empty string.
164
ce552449
NM
165NM/06 Bugzilla 744: EXPN did not work under TLS.
166 Patch provided by Phil Pennock
167
e765a0f1
NM
168NM/07 Bugzilla 769: Extraneous comma in usage fprintf
169 Patch provided by Richard Godbee
170
4f054c63 171NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 172 acl_smtp_notquit, added index entry.
4f054c63 173
24c929a2
NM
174NM/09 Bugzilla 787: Potential buffer overflow in string_format
175 Patch provided by Eugene Bujak
176
cf73943b
NM
177NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to accept()
178 Patch provided by Maxim Dounin
179
b52bc06e
NM
180NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
181 Patch provided by Phil Pennock
182
447de4b0
NM
183NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
184
4c69d561
NM
185NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
186 Patch provided by Brad "anomie" Jorsch
187
d5c39246 188NM/14 Bugzilla 622: Added timeout setting to transport filter.
9b989985
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189 Patch provided by Dean Brooks
190
0b23848a
TK
191TK/05 Add native DKIM support (does not depend on external libraries).
192
8f3414a1 193NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
e2aacdfd
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194 Patch provided by Graeme Fowler
195
fb6f955d
NM
196NM/16 Bugzilla 851: Documentation example syntax fix.
197
198NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 199
dbb0bf41
NM
200NM/18 Bugzilla 894: Fix issue with very long lines including comments in lsearch
201
f3766eb5
NM
202NM/19 Bugzilla 745: TLS version reporting
203 Patch provided by Phil Pennock
204
205NM/20 Bugzilla 167: bool: condition support
206 Patch provided by Phil Pennock
36f12725 207
e6060e2c
NM
208NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken clients
209 Patch provided by Phil Pennock
210
7496b417 211NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date
5eb690a1
NM
212 Patch provided by Brad "anomie" Jorsch
213
d5c13d66
NM
214NM/23 Bugzilla 687: Fix misparses in eximstats
215 Patch provided by Heiko Schlittermann
216
b2335c0b
NM
217NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid
218 Patch provided by Heiko Schlittermann
219
f4cd9433 220NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file
1da77999 221 plus update to original patch.
f4cd9433
NM
222
223NM/26 Bugzilla 799: Documentation correction for ratelimit
dc988b7e 224
8dc71ab3
NM
225NM/27 Bugzilla 802: Improvements to local interface IP addr detection
226 Patch provided by David Brownlee
227
400eda43
NM
228NM/28 Bugzilla 807: Improvements to LMTP delivery logging
229
230NM/29 Bugzilla 862, 866, 875: Documentation bugfixes
ec5a421b 231
07af267e
NM
232NM/30 Bugzilla 888: TLS documentation bugfixes
233
0cc09577 234NM/31 Bugzilla 896: Dovecot buffer overrun fix
51473862 235
17792b53
NM
236NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
237 Unlike the original bugzilla I have changed all shell scripts in src tree
238
52383f8f
NM
239NM/33 Bugzilla 898: Transport filter timeout fix
240 Patch by Todd Rinaldo
241
5ca6d115
NM
242NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches
243 Patch by Serge Demonchaux
244
baee9eee
NM
245NM/35 Bugzilla 39: Base64 decode bug fixes
246 Patch by Jakob Hirsch
247
e93a964c
NM
248NM/36 Bugzilla 909: Correct connect() call in dcc code
249
9bf3d68f
NM
250NM/37 Bugzilla 910: Correct issue with relaxed/simple handling
251
252NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed
96535b98 253
30339e0f
NM
254NM/39 Bugzilla 911: Fixed MakeLinks build script
255
deafd5b3 256
47db1125
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257Exim version 4.69
258-----------------
259
4b3504d0
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260TK/01 Add preliminary DKIM support. Currently requires a forked version of
261 ALT-N's libdkim that I have put here:
262 http://duncanthrax.net/exim-experimental/
263
264 Note to Michael Haardt: I had to rename some vars in sieve.c. They
265 were called 'true' and it seems that C99 defines that as a reserved
266 keyword to be used with 'bool' variable types. That means you could
267 not include C99-style headers which use bools without triggering
268 build errors in sieve.c.
269
81ea09ca
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270NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
271 as mailq or other aliases. Changed the --help handling significantly
272 to do whats expected. exim_usage() emits usage/help information.
273
f13cddcb
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274SC/01 Added the -bylocaldomain option to eximstats.
275
8ad076b2
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276NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr
277
a843aaa6
NM
278NM/03 Bugzilla 613: Documentation fix for acl_not_smtp
279
47db1125
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280NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall)
281
282
eb4c0de6
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283Exim version 4.68
284-----------------
285
286PH/01 Another patch from the Sieve maintainer.
287
6a3bceb1
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288PH/02 When an IPv6 address is converted to a string for single-key lookup
289 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
290 dots are used instead of colons so that keys in lsearch files need not
291 contain colons. This was done some time before quoting was made available
292 in lsearch files. However, iplsearch files do require colons in IPv6 keys
293 (notated using the quote facility) so as to distinguish them from IPv4
294 keys. This meant that lookups for IP addresses in host lists did not work
295 for iplsearch lookups.
296
297 This has been fixed by arranging for IPv6 addresses to be expressed with
298 colons if the lookup type is iplsearch. This is not incompatible, because
299 previously such lookups could never work.
300
301 The situation is now rather anomolous, since one *can* have colons in
302 ordinary lsearch keys. However, making the change in all cases is
303 incompatible and would probably break a number of configurations.
304
2e30fa9d
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305TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
306 version.
307
0806a9c5
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308MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
309 conversion specification without a maximum field width, thereby enabling
310 a rogue spamd server to cause a buffer overflow. While nobody in their
311 right mind would setup Exim to query an untrusted spamd server, an
312 attacker that gains access to a server running spamd could potentially
313 exploit this vulnerability to run arbitrary code as the Exim user.
314
ae276964
TK
315TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
316 $primary_hostname instead of what libspf2 thinks the hosts name is.
317
0f2cbd1b
MH
318MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
319 a directory entry by the name of the lookup key. Previously, if a
320 symlink pointed to a non-existing file or a file in a directory that
321 Exim lacked permissions to read, a lookup for a key matching that
322 symlink would fail. Now it is enough that a matching directory entry
323 exists, symlink or not. (Bugzilla 503.)
324
2b85bce7
PH
325PH/03 The body_linecount and body_zerocount variables are now exported in the
326 local_scan API.
327
93655c46
PH
328PH/04 Added the $dnslist_matched variable.
329
6c512171
PH
330PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
331 This means they are set thereafter only if the connection becomes
332 encrypted.
333
334PH/06 Added the client_condition to authenticators so that some can be skipped
335 by clients under certain conditions.
336
aa6dc513
PH
337PH/07 The error message for a badly-placed control=no_multiline_responses left
338 "_responses" off the end of the name.
339
a96603a0
PH
340PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
341
8f240103
PH
342PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
343 (without spaces) instead of just copying the configuration text.
344
345PH/10 Added the /noupdate option to the ratelimit ACL condition.
346
d677b2f2
PH
347PH/11 Added $max_received_linelength.
348
d52120f2
PH
349PH/12 Added +ignore_defer and +include_defer to host lists.
350
64f2600a
PH
351PH/13 Installed PCRE version 7.2. This needed some changes because of the new
352 way in which PCRE > 7.0 is built.
353
8669f003
PH
354PH/14 Implemented queue_only_load_latch.
355
a4dc33a8
PH
356PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
357 MAIL command. The effect was to mangle the value on 64-bit systems.
358
d6a60c0f
PH
359PH/16 Another patch from the Sieve maintainer.
360
8f128379
PH
361PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
362
8932dffe
PH
363PH/18 If a system quota error occurred while trying to create the file for
364 a maildir delivery, the message "Mailbox is full" was not appended to the
365 bounce if the delivery eventually timed out. Change 4.67/27 below applied
366 only to a quota excession during the actual writing of the file.
d6a60c0f 367
ddea74fa 368PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
369 characters?) which causes problems in log lines. The DN values are now
370 passed through string_printing() before being added to log lines.
371
ddea74fa 372PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
373 and InterBase are left for another time.)
374
ddea74fa
PH
375PH/21 Added message_body_newlines option.
376
ce9f225c
PH
377PH/22 Guard against possible overflow in moan_check_errorcopy().
378
19897d52
PH
379PH/23 POSIX allows open() to be a macro; guard against that.
380
bc64a74d
PH
381PH/24 If the recipient of an error message contained an @ in the local part
382 (suitably quoted, of course), incorrect values were put in $domain and
383 $local_part during the evaluation of errors_copy.
384
eb4c0de6 385
b4ed4da0
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386Exim version 4.67
387-----------------
388
22ad45c9
MH
389MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
390 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
391 Jan Srzednicki.
392
b4ed4da0
PH
393PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
394 issue a MAIL command.
395
431b7361
PH
396PH/02 In an ACL statement such as
397
398 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
399
400 if a client was not listed at all, or was listed with a value other than
401 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
402 the condition was not true (as it should be), so access was not denied.
403 The bug was that the ! inversion was incorrectly passed on to the second
404 item. This has been fixed.
405
406PH/03 Added additional dnslists conditions == and =& which are different from
407 = and & when the dns lookup returns more than one IP address.
408
83da1223
PH
409PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
410 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
411
54fc8428
PH
412PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
413 FSYNC, which compiles an option called disable_fsync that allows for
414 bypassing fsync(). The documentation is heavily laced with warnings.
415
34c5e8dd
SC
416SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
417
bbe15da8
PH
418PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
419 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
420 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
421 including adding "make clean"; (3) Added -fPIC when compiling the test
422 dynamically loaded module, to get rid of a warning.
423
0e8a9471
MH
424MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
425 message fails, move_frozen_messages = true and ignore_bounce_errors_after
426 = 0s. The bug is otherwise harmless.
427
f0872424
PH
428PH/07 There was a bug in the dovecot authenticator such that the value of
429 $auth1 could be overwritten, and so not correctly preserved, after a
430 successful authentication. This usually meant that the value preserved by
431 the server_setid option was incorrect.
432
b01dd148
PH
433PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
434
6bf342e1
PH
435PH/09 Installed PCRE release 7.0.
436
273f34d0
PH
437PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
438 run for batched SMTP input. It is now run at the start of every message
439 in the batch. While fixing this I discovered that the process information
440 (output by running exiwhat) was not always getting set for -bs and -bS
441 input. This is fixed, and it now also says "batched" for BSMTP.
442
cf8b11a5
PH
443PH/11 Added control=no_pipelining.
444
41c7c167
PH
445PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
446 patch, slightly modified), and move the expansion of helo_data till after
447 the connection is made in the smtp transport (so it can use these
448 values).
449
9c57cbc0
PH
450PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
451
f3f065bb
PH
452PH/14 Added log_selector = +pid.
453
047bdd8c
PH
454PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
455
0ce9abe6
PH
456PH/16 Add ${if forany and ${if forall.
457
0e22dfd1
PH
458PH/17 Added dsn_from option to vary the From: line in DSNs.
459
4c590bd1
PH
460PH/18 Flush SMTP output before performing a callout, unless control =
461 no_callout_flush is set.
462
09945f1e
PH
463PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
464 was true (the default) a successful delivery failed to delete the retry
465 item, thus causing premature timeout of the address. The bug is now
466 fixed.
467
c51b8e75
PH
468PH/20 Added hosts_avoid_pipelining to the smtp transport.
469
e28326d8
PH
470PH/21 Long custom messages for fakedefer and fakereject are now split up
471 into multiline reponses in the same way that messages for "deny" and
472 other ACL rejections are.
473
75b1493f
PH
474PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
475 with slight modification.
476
7c5214ec
PH
477PH/23 Applied sieve patches from the maintainer "tracking the latest notify
478 draft, changing the syntax and factoring some duplicate code".
479
4311097e
PH
480PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
481 for deliveries of the second and subsequent messages over the same SMTP
482 connection.
483
29f89cad
PH
484PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
485 ${reduce, with only minor "tidies".
486
5e687460
SC
487SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
488
c3611384
PH
489PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
490 expansion side effects.
491
5a11a7b4
PH
492PH/27 When a message times out after an over-quota error from an Exim-imposed
493 quota, the bounce message says "mailbox is full". This message was not
494 being given when it was a system quota that was exceeded. It now should
495 be the same.
496
0e20aff9
MH
497MH/03 Made $recipients available in local_scan(). local_scan() already has
498 better access to the recipient list through recipients_list[], but
499 $recipients can be useful in postmaster-provided expansion strings.
500
ca86f471
PH
501PH/28 The $smtp_command and $smtp_command_argument variables were not correct
502 in the case of a MAIL command with additional options following the
503 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
504 were accidentally chopped off.
505
a14e5636
PH
506PH/29 SMTP synchronization checks are implemented when a command is read -
507 there is a check that no more input is waiting when there shouldn't be
508 any. However, for some commands, a delay in an ACL can mean that it is
509 some time before the response is written. In this time, more input might
510 arrive, invalidly. So now there are extra checks after an ACL has run for
511 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
512 pipelining has not been advertised.
513
ec95d1a6
PH
514PH/30 MH's patch to allow iscntrl() characters to be list separators.
515
42855d71
PH
516PH/31 Unlike :fail:, a custom message specified with :defer: was not being
517 returned in the SMTP response when smtp_return_error_details was false.
518 This has been fixed.
519
57c2c631
PH
520PH/32 Change the Dovecot authenticator to use read() and write() on the socket
521 instead of the C I/O that was originally supplied, because problems were
522 reported on Solaris.
523
58c01c94
PH
524PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
525 Exim which did not show up earlier: it was assuming that a call to
526 SSL_CTX_set_info_callback() might give an error value. In fact, there is
527 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
528 was a macro that became an assignment, so it seemed to work. This has
529 changed to a proper function call with a void return, hence the compile
530 error. Exim's code has been fixed.
531
dee5a20a
PH
532PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
533 cpus.
534
d2ee6114
PH
535PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
536
b2d5182b
PH
537PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
538
79749a79
PH
539PH/37 If a message is not accepted after it has had an id assigned (e.g.
540 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
541 "Completed" line in the log. When some messages of this type were
542 selected by exigrep, they were listed as "not completed". Others were
543 picked up by some special patterns. I have improved the selection
544 criteria to be more general.
79749a79 545
c456d9bb
PH
546PH/38 The host_find_failed option in the manualroute router can now be set
547 to "ignore", to completely ignore a host whose IP address cannot be
548 found. If all hosts are ignored, the behaviour is controlled by the new
549 host_all_ignored option.
550
cd9868ec
PH
551PH/39 In a list of hosts for manualroute, if one item (either because of multi-
552 homing or because of multiple MX records with /mx) generated more than
553 one IP address, and the following item turned out to be the local host,
554 all the secondary addresses of the first item were incorrectly removed
555 from the list, along with the local host and any following hosts (which
556 is what is supposed to happen).
557
ebeaf996
PH
558PH/40 When Exim receives a message, it writes the login name, uid, and gid of
559 whoever called Exim into the -H file. In the case of the daemon it was
560 behaving confusingly. When first started, it used values for whoever
561 started the daemon, but after a SIGHUP it used the Exim user (because it
562 calls itself on a restart). I have changed the code so that it now always
563 uses the Exim user.
564
2679d413
PH
565PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
566 message are rejected with the same error (e.g. no authentication or bad
567 sender address), and a DATA command is nevertheless sent (as can happen
568 with PIPELINING or a stupid MUA), the error message that was given to the
569 RCPT commands is included in the rejection of the DATA command. This is
570 intended to be helpful for MUAs that show only the final error to their
571 users.
572
84024b72
PH
573PH/42 Another patch from the Sieve maintainer.
574
8005d38e
SC
575SC/02 Eximstats - Differentiate between permanent and temporary rejects.
576 Eximstats - Fixed some broken HTML links and added missing column headers
577 (Jez Hancock).
578 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
579 columns for Rejects, Temp Rejects, Ham, and Spam rows.
580
3298c6c6
SC
581SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
582
a43a27c5
PH
583PH/43 Yet another patch from the Sieve maintainer.
584
58eb016e 585PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
586 the response to the final '.' that terminates a message, but only in the
587 case where the client has not sent further data following the '.'
588 (unfortunately, this is allowed). However, in many cases there won't be
589 any further data because there won't be any more messages to send. A call
590 to select() can be used: if it shows that the input is "ready", there is
591 either input waiting, or the socket has been closed. An attempt to read
592 the next input character can distinguish the two cases. Previously, Exim
58eb016e 593 would have sent an OK response which the client would never have see.
563b63fa
PH
594 This could lead to message repetition. This fix should cure that, at
595 least in a lot of common cases.
58eb016e 596
b43a74ea
PH
597PH/45 Do not advertise STARTTLS in response to HELP unless it would be
598 advertised in response to EHLO.
599
b4ed4da0 600
5dd1517f
PH
601Exim version 4.66
602-----------------
603
604PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
605 fixed by 4.65/MH/01 (is this a record?) are fixed:
606
607 (i) An empty string was always treated as zero by the numeric comparison
608 operators. This behaviour has been restored.
609
610 (ii) It is documented that the numeric comparison operators always treat
611 their arguments as decimal numbers. This was broken in that numbers
612 starting with 0 were being interpreted as octal.
613
614 While fixing these problems I realized that there was another issue that
615 hadn't been noticed. Values of message_size_limit (both the global option
616 and the transport option) were treated as octal if they started with 0.
617 The documentation was vague. These values are now always treated as
618 decimal, and I will make that clear in the documentation.
619
620
93cfa765
TK
621Exim version 4.65
622-----------------
623
624TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
625 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
626 versions. (#438)
627
d6066548
MH
628MH/01 Don't check that the operands of numeric comparison operators are
629 integers when their expansion is in "skipping" mode (fixes bug
630 introduced by 4.64-PH/07).
631
4362ff0d
PH
632PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
633 child addresses, Exim now panics and dies. Previously, because the count
634 is held in a short int, deliveries were likely to be lost. As such a
635 large number of recipients for a single message is ridiculous
636 (performance will be very, very poor), I have chosen to impose a limit
637 rather than extend the field.
638
93cfa765 639
944e9e9c
TF
640Exim version 4.64
641-----------------
aa41d2de 642
21d74bd9
TK
643TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
644 leftover -K file (the existence of which was triggered by #402).
645 While we were at it, introduced process PID as part of the -K
646 filename. This should rule out race conditions when creating
647 these files.
648
649TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
650 processing considerably. Previous code took too long for large mails,
651 triggering a timeout which in turn triggers #401.
652
653TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
654 in the DK code in transports.c. sendfile() is not really portable,
655 hence the _LINUX specificness.
944e9e9c
TF
656
657TF/01 In the add_headers option to the mail command in an Exim filter,
658 there was a bug that Exim would claim a syntax error in any
659 header after the first one which had an odd number of characters
660 in the field name.
661
2b1c6e3a
PH
662PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
663 callout verification, Exim cached a "reject" for the entire domain. This
664 is correct for most verifications, but it is not correct for a recipient
665 verification with use_sender or use_postmaster set, because in that case
666 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
667 case of MAIL FROM:<> rejection from other early rejections (e.g.
668 rejection of HELO). When verifying a recipient using a non-null MAIL
669 address, the cache is ignored if it shows MAIL FROM:<> rejection.
670 Whatever the result of the callout, the value of the domain cache is
671 left unchanged (for any other kind of callout, getting as far as trying
672 RCPT means that the domain itself is ok).
673
1f872c80
PH
674PH/02 Tidied a number of unused variable and signed/unsigned warnings that
675 gcc 4.1.1 threw up.
676
677PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
678 manifest itself as EPIPE rather than ECONNECT. When tidying away a
679 session, the daemon ignores ECONNECT errors and logs others; it now
680 ignores EPIPE as well.
681
d203e649
PH
682PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
683 (quoted-printable decoding).
684
cc2ed8f7 685PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 686 later the small subsequent patch to fix an introduced bug.
f951fd57 687
ddfcd446
PH
688PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
689
d45b1de8
PH
690PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
691
692PH/08 An error is now given if message_size_limit is specified negative.
693
38a0a95f 694PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 695 to be given (somewhat) arbitrary names.
38a0a95f 696
a2405d83
JJ
697JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
698 in 4.64-PH/09.
699
700JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
701 miscellaneous code fixes
702
6ea85e9a
PH
703PH/10 Added the log_reject_target ACL modifier to specify where to log
704 rejections.
705
26da7e20
PH
706PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
707 hostname. This is wrong, because it relates to the incoming message (and
708 probably the interface on which it is arriving) and not to the outgoing
709 callout (which could be using a different interface). This has been
710 changed to use the value of the helo_data option from the smtp transport
711 instead - this is what is used when a message is actually being sent. If
712 there is no remote transport (possible with a router that sets up host
713 addresses), $smtp_active_hostname is used.
6ea85e9a 714
14aa5a05 715PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 716 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
717 (a) The code assumed that strncpy() returns a negative number on buffer
718 overflow, which isn't the case. Replaced with Exim's string_format()
719 function.
720 (b) There were several signed/unsigned issues. I just did the minimum
721 hacking in of casts. There is scope for a larger refactoring.
722 (c) The code used strcasecmp() which is not a standard C function.
723 Replaced with Exim's strcmpic() function.
724 (d) The code set only $1; it now sets $auth1 as well.
725 (e) A simple test gave the error "authentication client didn't specify
726 service in request". It would seem that Dovecot has changed its
727 interface. Fortunately there's a specification; I followed it and
728 changed what the client sends and it appears to be working now.
729
ff75a1f7
PH
730PH/13 Added $message_headers_raw to provide the headers without RFC 2047
731 decoding.
732
e6f6568e
PH
733PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
734 address A is aliased to B and C, where B exists and C does not. Without
735 -v the output is "A verified" because verification stops after a
736 successful redirection if more than one address is generated. However,
737 with -v the child addresses are also verified. Exim was outputting "A
738 failed to verify" and then showing the successful verification for C,
739 with its parentage. It now outputs "B failed to verify", showing B's
740 parentage before showing the successful verification of C.
741
d6f6e0dc
PH
742PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
743 look up a TXT record in a specific list after matching in a combined
744 list.
745
322050c2
PH
746PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
747 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
748 they consult the DNS. I had assumed they would set it the way they
749 wanted; and indeed my experiments on Linux seem to show that in some
750 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
751 To be on the safe side, however, I have now made the interface to
752 host_find_byname() similar to host_find_bydns(), with an argument
753 containing the DNS resolver options. The host_find_byname() function now
754 sets these options at its start, just as host_find_bydns() does. The smtp
755 transport options dns_qualify_single and dns_search_parents are passed to
756 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
757 of host_find_byname() use the default settings of RES_DEFNAMES
758 (qualify_single) but not RES_DNSRCH (search_parents).
759
08955dd3
PH
760PH/17 Applied (a modified version of) Nico Erfurth's patch to make
761 spool_read_header() do less string testing, by means of a preliminary
762 switch on the second character of optional "-foo" lines. (This is
763 overdue, caused by the large number of possibilities that now exist.
764 Originally there were few.) While I was there, I also converted the
765 str(n)cmp tests so they don't re-test the leading "-" and the first
766 character, in the hope this might squeeze out yet more improvement.
767
1eccaa59
PH
768PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
769 flag allowing group syntax was set by the header_syntax check but not
770 turned off, possible causing trouble later; (2) The flag was not being
771 set at all for the header_verify test, causing "group"-style headers to
772 be rejected. I have now set it in this case, and also caused header_
773 verify to ignore an empty address taken from a group. While doing this, I
774 came across some other cases where the code for allowing group syntax
775 while scanning a header line wasn't quite right (mostly, not resetting
776 the flag correctly in the right place). These bugs could have caused
777 trouble for malformed header lines. I hope it is now all correct.
778
602e59e5
PH
779PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
780 with the "reply" argument non-NULL. The code, however (which originally
781 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
782 but it didn't always do it. This confused somebody who was copying the
783 code for some other use. I have removed all the tests.
784
411ef850
PH
785PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
786 feature that was used to support insecure browsers during the U.S. crypto
787 embargo. It requires special client support, and Exim is probably the
788 only MTA that supported it -- and would never use it because real RSA is
789 always available. This code has been removed, because it had the bad
790 effect of slowing Exim down by computing (never used) parameters for the
791 RSA_EXPORT functionality.
792
7befa435
PH
793PH/21 On the advice of Timo Sirainen, added a check to the dovecot
794 authenticator to fail if there's a tab character in the incoming data
795 (there should never be unless someone is messing about, as it's supposed
796 to be base64-encoded). Also added, on Timo's advice, the "secured" option
797 if the connection is using TLS or if the remote IP is the same as the
798 local IP, and the "valid-client-cert option" if a client certificate has
799 been verified.
800
48da4259 801PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
802 authenticators. This can be used for authorization after authentication
803 succeeds. (In the case of plaintext, it servers for both authentication
804 and authorization.)
805
48da4259
PH
806PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
807 if any retry times were supplied.
808
d1d5595c
PH
809PH/24 Exim crashed if verify=helo was activated during an incoming -bs
810 connection, where there is no client IP address to check. In this
811 situation, the verify now always succeeds.
812
0ef732d9
PH
813PH/25 Applied John Jetmore's -Mset patch.
814
328895cc
PH
815PH/26 Added -bem to be like -Mset, but loading a message from a file.
816
fd700877
PH
817PH/27 In a string expansion for a processed (not raw) header when multiple
818 headers of the same name were present, leading whitespace was being
819 removed from all of them, but trailing whitespace was being removed only
820 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
821 before concatenation. Completely empty headers in a concatenation (as
822 before) are ignored.
fd700877 823
8dce1a6f
PH
824PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
825 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
826
17af4a17
PH
827PH/29 [Removed. This was a change that I later backed out, and forgot to
828 correct the ChangeLog entry (that I had efficiently created) before
829 committing the later change.]
f6c332bd
PH
830
831PH/30 Exim was sometimes attempting to deliver messages that had suffered
832 address errors (4xx response to RCPT) over the same connection as other
833 messages routed to the same hosts. Such deliveries are always "forced",
834 so retry times are not inspected. This resulted in far too many retries
835 for the affected addresses. The effect occurred only when there were more
836 hosts than the hosts_max_try setting in the smtp transport when it had
837 the 4xx errors. Those hosts that it had tried were not added to the list
838 of hosts for which the message was waiting, so if all were tried, there
839 was no problem. Two fixes have been applied:
840
841 (i) If there are any address or message errors in an SMTP delivery, none
842 of the hosts (tried or untried) are now added to the list of hosts
843 for which the message is waiting, so the message should not be a
844 candidate for sending over the same connection that was used for a
845 successful delivery of some other message. This seems entirely
846 reasonable: after all the message is NOT "waiting for some host".
847 This is so "obvious" that I'm not sure why it wasn't done
848 previously. Hope I haven't missed anything, but it can't do any
849 harm, as the worst effect is to miss an optimization.
850
851 (ii) If, despite (i), such a delivery is accidentally attempted, the
852 routing retry time is respected, so at least it doesn't keep
853 hammering the server.
854
c1114884
PH
855PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
856 in ${readsocket because some servers need this prod.
857
7a0743eb
PH
858PH/32 Added some extra debug output when updating a wait-xxx database.
859
0d85fa3f
PH
860PH/33 The hint "could be header name not terminated by colon", which has been
861 given for certain expansion errors for a long time, was not being given
862 for the ${if def:h_colon_omitted{... case.
863
1bf43b78
PH
864PH/34 The spec says: "With one important exception, whenever a domain list is
865 being scanned, $domain contains the subject domain." There was at least
866 one case where this was not true.
867
520de300
PH
868PH/35 The error "getsockname() failed: connection reset by peer" was being
869 written to the panic log as well as the main log, but it isn't really
870 panic-worthy as it just means the connection died rather early on. I have
871 removed the panic log writing for the ECONNRESET error when getsockname()
872 fails.
873
48c7f9e2
PH
874PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
875 runs only) independently of the message's sender address. This meant
876 that, if the 4xx error was in fact related to the sender, a different
877 message to the same recipient with a different sender could confuse
878 things. In particualar, this can happen when sending to a greylisting
879 server, but other circumstances could also provoke similar problems.
880 I have changed the default so that the retry time for these errors is now
881 based a combination of the sender and recipient addresses. This change
882 can be overridden by setting address_retry_include_sender=false in the
883 smtp transport.
884
99ea1c86
PH
885PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
886 remote server are returned as part of bounce messages. This was not
887 happening for LMTP over a pipe (the lmtp transport), but now it is the
888 same for both kinds of LMTP.
889
a2042e78
PH
890PH/38 Despite being documented as not happening, Exim was rewriting addresses
891 in header lines that were in fact CNAMEs. This is no longer the case.
892
4fbcfc2e
PH
893PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
894 and queue runs started by the daemon processed all messages. This has
895 been fixed so that -R and -S can now usefully be given with -q<time>.
896
aa41d2de
PH
897PH/40 Import PCRE release 6.7 (fixes some bugs).
898
af561417
PH
899PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
900
3cc66b45
PH
901PH/42 Give an error if -q is specified more than once.
902
194cc0e4
PH
903PH/43 Renamed the variables $interface_address and $interface_port as
904 $received_ip_address and $received_port, to make it clear that these
905 values apply to message reception, and not to the outgoing interface when
906 a message is delivered. (The old names remain recognized, of course.)
907
a401ddaa
PH
908PH/44 There was no timeout on the connect() call when using a Unix domain
909 socket in the ${readsocket expansion. There now is.
910
4e88a19f
PH
911PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
912 be meaningful with "accept".
913
d7d7b289
SC
914SC/01 Eximstats V1.43
915 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
916
917SC/02 Eximstats V1.44
918 Use a glob alias rather than an array ref in the generated
919 parser. This improves both readability and performance.
920
921SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
922 Collect SpamAssassin and rejection statistics.
923 Don't display local sender or destination tables unless
924 there is data to show.
925 Added average volumes into the top table text output.
926
927SC/04 Eximstats V1.46
928 Collect data on the number of addresses (recipients)
929 as well as the number of messages.
930
931SC/05 Eximstats V1.47
932 Added 'Message too big' to the list of mail rejection
933 reasons (thanks to Marco Gaiarin).
934
935SC/06 Eximstats V1.48
936 Mainlog lines which have GMT offsets and are too short to
937 have a flag are now skipped.
938
939SC/07 Eximstats V1.49 (Alain Williams)
940 Added the -emptyok flag.
941
942SC/08 Eximstats V1.50
943 Fixes for obtaining the IP address from reject messages.
944
0ea2a468
JJ
945JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
946 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
947 whitesspace changes from 4.64-PH/27
948
949JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
950 match 4.64-PH/13
951
952JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
953 are found, allow negative numbers in numeric criteria)
954
955JJ/06 exipick.20061117.2, added new $message_body_missing variable
956
957JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
958 to match changes made in 4.64-PH/43
959
8a10f5a4
PH
960PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
961
30e18802
PH
962PH/47 Put in an explicit test for a DNS lookup of an address record where the
963 "domain" is actually an IP address, and force a failure. This locks out
964 those revolvers/nameservers that support "A-for-A" lookups, in
965 contravention of the specifications.
966
55728a4f
PH
967PH/48 When a host name was looked up from an IP address, and the subsequent
968 forward lookup of the name timed out, the host name was left in
969 $sender_host_name, contrary to the specification.
d7d7b289 970
d7837193
PH
971PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
972 restricted to single-key lookups, Exim was not diagnosing an error if
973 * or *@ was used with a query-style lookup.
974
87054a31
PH
975PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
976
ea2c01d2
MH
977MH/01 local_scan ABI version incremented to 1.1. It should have been updated
978 long ago, but noone interested enough thought of it. Let's just say that
979 the "1.1" means that there are some new functions that weren't there at
980 some point in the past.
981
e4fa6968
PH
982PH/51 Error processing for expansion failure of helo_data from an smtp
983 transport during callout processing was broken.
984
56f5d9bd
PH
985PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
986 tested/used via the -bh/-bhc/-bs options.
987
922e1c28
PH
988PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
989 bug, fixed in subsequent PCRE releases).
990
21eb6e72
PH
991PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
992 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
993
a0540757
PH
994PH/55 Check for a ridiculously long file name in exim_dbmbuild.
995
944e9e9c 996
478be7b0
SC
997Exim version 4.63
998-----------------
999
1000SC/01 Use a glob alias rather than an array ref in eximstats generated
1001 parser. This improves both readability and performance.
1002
1003SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1004 Don't display local sender or destination tables in eximstats unless
1005 there is data to show.
1006 Added average volumes into the eximstats top table text output.
1007
1008SC/03 Collect data on the number of addresses (recipients) as well
1009 as the number of messages in eximstats.
1010
2b965a65
TF
1011TF/01 Correct an error in the documentation for the redirect router. Exim
1012 does (usually) call initgroups() when daemonizing.
478be7b0 1013
45b91596
PH
1014TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1015 with consistent privilege compared to when running as a daemon.
478be7b0 1016
c59f5781
TF
1017TF/03 Note in the spec that $authenticated_id is not set for local
1018 submissions from trusted users.
1019
90fc3069
TF
1020TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1021 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1022
6083aca0
TF
1023TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1024 by adding some example configuration directives to the default
1025 configuration file. A little bit of work is required to uncomment the
1026 directives and define how usernames and passwords are checked, but
1027 there is now a framework to start from.
1028
765b530f
PH
1029PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1030 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1031 without this. I don't know how relevant this is to other LDAP libraries.
1032
4e167a8c
PH
1033PH/02 Add the verb name to the "unknown ACL verb" error.
1034
4608d683
PH
1035PH/03 Magnus Holmgren's patch for filter_prepend_home.
1036
b8dc3e4a
PH
1037PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1038
5418e93b
PH
1039PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1040 directory not expanded when it should be if an expanded home directory
1041 was set for the address (which is overridden by the transport).
1042
b4a9bda2
PH
1043PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1044 libradius.
1045
45b91596
PH
1046PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1047 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1048 because it is too late at that time, and has no effect.
1049
5547e2c5
PH
1050PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1051 security issue with \' (bugzilla #107). I could not use the
1052 PQescapeStringConn() function, because it needs a PGconn value as one of
1053 its arguments.
1054
dbcef0ea
PH
1055PH/08 When testing addresses using -bt, indicate those final addresses that
1056 are duplicates that would not cause an additional delivery. At least one
1057 person was confused, thinking that -bt output corresponded to deliveries.
1058 (Suppressing duplicates isn't a good idea as you lose the information
1059 about possibly different redirections that led to the duplicates.)
1060
25257489
PH
1061PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1062 systems where poll() doesn't work, in particular OS X.
1063
c816d124
PH
1064PH/10 Added more information to debugging output for retry time not reached.
1065
a9ccd69a
PH
1066PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1067 operations in malware.c.
1068
75fa1910
PH
1069PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1070 signatures.
1071
a7d7aa58
PH
1072PH/13 If write_rejectlog was set false when logging was sent to syslog with
1073 syslog_duplication set false, log lines that would normally be written
1074 both the the main log and to the reject log were not written to syslog at
1075 all.
1076
42119b09
PH
1077PH/14 In the default configuration, change the use of "message" in ACL warn
1078 statements to "add_header".
1079
41609df5
PH
1080PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1081 not followed by a command (e.g. "seen endif").
1082
a5bd321b
PH
1083PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1084 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1085 latter.
1086
e85a7ad5 1087PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1088 so that it is now:
1089
e85a7ad5
PH
1090 ${if or { \
1091 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1092 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1093 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1094 }{no}{yes}}
1095
e85a7ad5
PH
1096 The Auto-Submitted: and various List- headers are standardised, whereas I
1097 don't think Precedence: ever was.
5dff5817 1098
d8fe1c03
PH
1099PH/18 Refactored debugging code in route_finduser() to show more information,
1100 in particular, the error code if getpwnam() issues one.
1101
16282d2b
PH
1102PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1103 This is apparently needed in addition to the PH/07 change above to avoid
1104 any possible encoding problems.
1105
35d40a98
PH
1106PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1107 but not after initializing Perl.
1108
034d99ab
PH
1109PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1110 output them only if debugging. By default they are written stderr,
1111 apparently, which is not desirable.
1112
6ec97b1b
PH
1113PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1114 queries.
1115
e22ca4ac
JJ
1116JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1117 --not options
1118
1119JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1120
33d73e3b
PH
1121PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1122 authenticated or an ident call has been made. Suppress the default
1123 values for $authenticated_id and $authenticated_sender (but permit -oMai
1124 and -oMas) when testing with -bh.
1125
9ecb03f3
PH
1126PH/24 Re-jigged the order of the tests in the default configuration so that the
1127 tests for valid domains and recipients precede the DNS black list and CSA
1128 tests, on the grounds that those ones are more expensive.
1129
084efe8d
PH
1130PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1131 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1132 This bug exists in every version of Exim that I still have, right back to
1133 0.12.
1134
366fc9f0
PH
1135PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1136 However, an attempt to turn on case-sensitivity in a regex key by
1137 including (?-i) didn't work because the subject string was already
1138 lowercased, and the effects were non-intuitive. It turns out that a
1139 one-line patch can be used to allow (?-i) to work as expected.
1140
c59f5781 1141
c887c79e
TF
1142Exim version 4.62
1143-----------------
1144
1145TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1146 other effects) broke the use of negated acl sub-conditions.
1147
1cce3af8
PH
1148PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1149 patch).
1150
afb3eaaf
PH
1151PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1152 "Deny" causes Exim to reject the incoming connection with a 554 error.
1153 Unfortunately, if there is a major crisis, such as a disk failure,
1154 tcp-wrappers gives "deny", whereas what one would like would be some
1155 kind of temporary error. A kludge has been added to help with this.
1156 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1157 554 error is used if errno is still zero or contains ENOENT (which occurs
1158 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1159 451 error is used.
1160
e173618b
PH
1161PH/03 Add -lutil to the default FreeBSD LIBS setting.
1162
dd16e114
PH
1163PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1164 errors. Otherwise a message that provokes a temporary error (when other
1165 messages do not) can cause a whole host to time out.
1166
f7fd3850
PH
1167PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1168 addresses were routed directly to files or pipes from a redirect router.
1169 File deliveries just didn't batch; pipe deliveries might have suffered
1170 odd errors.
1171
d87df92c
PH
1172PH/06 A failure to get a lock for a hints database would erroneously always say
1173 "Failed to get write lock", even when it was really a read lock.
1174
7e9f683d
PH
1175PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1176 of 0600. This has been changed to use the value of the lockfile_mode
1177 option (which defaults to 0600).
1178
bfad5236
PH
1179PH/08 Applied small patch from the Sieve maintainer.
1180
01c490df
PH
1181PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1182 folder from quota calculations, a direct delivery into this folder messed
1183 up the contents of the maildirsize file. This was because the regex was
1184 used only to exclude .Trash (or whatever) when the size of the mailbox
1185 was calculated. There was no check that a delivery was happening into an
1186 excluded directory. This bug has been fixed by ignoring all quota
1187 processing for deliveries into excluded directories.
1188
d6629cdc
PH
1189PH/10 Added the maildirfolder_create_regex option to appendfile.
1190
1cce3af8 1191
214e2000
PH
1192Exim version 4.61
1193-----------------
1194
1195PH/01 The code for finding all the local interface addresses on a FreeBSD
1196 system running IPv6 was broken. This may well have applied to all BSD
1197 systems, as well as to others that have similar system calls. The broken
1198 code found IPv4 interfaces correctly, but gave incorrect values for the
1199 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1200 that it would not match correctly against @[] and not recognize the IPv6
1201 addresses as local.
1202
f9daeae0
PH
1203PH/02 The ipliteral router was not recognizing addresses of the form user@
1204 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1205
7e66e54d
PH
1206PH/03 Added disable_ipv6.
1207
c8ea1597
PH
1208PH/04 Changed $reply_address to use the raw form of the headers instead of the
1209 decoded form, because it is most often used to construct To: headers
1210 lines in autoreplies, and the decoded form may well be syntactically
1211 invalid. However, $reply_address has leading white space removed, and all
1212 newlines turned into spaces so that the autoreply transport does not
1213 grumble.
1214
911f6fde
PH
1215PH/05 If group was specified without a user on a router, and no group or user
1216 was specified on a transport, the group from the router was ignored.
1217
47ca6d6c
PH
1218PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1219 for visible compile-time settings that can be used to change these
1220 numbers, for those that want even more. Backwards compatibility with old
1221 spool files has been maintained. However, going back to a previous Exim
1222 release will lost any variables that are in spool files.
1223
ed0e9820
PH
1224PH/07 Two small changes when running in the test harness: increase delay when
1225 passing a TCP/IP connection to a new process, in case the original
1226 process has to generate a bounce, and remove special handling of
1227 127.0.0.2 (sic), which is no longer necessary.
1228
eff37e47
PH
1229PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1230 be the same on different OS.
1231
1921d2ea
PH
1232PH/09 Moved a debug statement in filter processing to avoid a race problem when
1233 testing.
1234
b3f69ca8
JJ
1235JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1236 whether --show-vars was specified or not
1237
1238JJ/02 exipick: Added support for new ACL variable spool format introduced
1239 in 4.61-PH/06
1240
424a1c63
PH
1241PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1242 syntactically invalid From: or Reply-to: line, and a filter used this to
1243 generate an autoreply, and therefore failed to obtain an address for the
1244 autoreply, Exim could try to deliver to a non-existent relative file
1245 name, causing unrelated and misleading errors. What now happens is that
1246 it logs this as a hard delivery error, but does not attempt to create a
1247 bounce message.
1248
7a100415
PH
1249PH/11 The exinext utility has a -C option for testing purposes, but although
1250 the given file was scanned by exinext itself; it wasn't being passed on
1251 when Exim was called.
1252
19b9dc85
PH
1253PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1254 an end-of-file indication when reading a command response.
1255
309bd837
PH
1256PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1257 compiled. In many other places in Exim, IPv6 addresses are always
1258 recognized, so I have changed this. It also means that IPv4 domain
1259 literals of the form [IPV4:n.n.n.n] are now always recognized.
1260
59e82a2a
PH
1261PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1262 used if the router is not running as root, for example, when verifying at
1263 ACL time, or when using -bh. The debugging output from this situation was
1264 non-existent - all you got was a failure to exec. I have made two
1265 changes:
1266
1267 (a) Failures to set uid/gid, the current directory, or a process leader
1268 in a subprocess such as that created by queryprogram now generate
1269 suitable debugging ouput when -d is set.
1270
1271 (b) The queryprogram router detects when it is not running as root,
1272 outputs suitable debugging information if -d is set, and then runs
1273 the subprocess without attempting to change uid/gid.
1274
9edc04ce
PH
1275PH/15 Minor change to Makefile for building test_host (undocumented testing
1276 feature).
1277
1349e1e5
PH
1278PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1279 additional section of a DNS packet that returns MX or SRV records.
1280 Instead, it always explicitly searches for A/AAAA records. This avoids
1281 major problems that occur when a DNS server includes only records of one
1282 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1283 fixed another bug: if SRV records were looked up and the corresponding
1284 address records were *not* found in the additional section, the port
1285 values from the SRV records were lost.
1286
ea49d0e1
PH
1287PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1288 using the correct key (the original address) when searching the retry
1289 rules in order to find which one to use for generating the retry hint.
1290
064a94c9
PH
1291PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1292 adding the default one. Similarly, if it contains a Reply-To: header, the
1293 errors_reply_to option, if set, is not used.
1294
727071f8
PH
1295PH/19 When calculating a retry time, Exim used to measure the "time since
1296 failure" by looking at the "first failed" field in the retry record. Now
1297 it does not use this if it is later than than the arrival time of the
1298 message. Instead it uses the arrival time. This makes for better
1299 behaviour in cases where some deliveries succeed, thus re-setting the
1300 "first failed" field. An example is a quota failure for a huge message
1301 when small messages continue to be delivered. Without this change, the
1302 "time since failure" will always be short, possible causing more frequent
1303 delivery attempts for the huge message than are intended.
dd16e114 1304 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1305
f78eb7c6
PH
1306PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1307 $1, $2, $3) because the numerical variables can be reset during some
1308 expansion items (e.g. "match"), thereby losing the authentication data.
1309
21c28500
PH
1310PH/21 Make -bV show the size of off_t variables so that the test suite can
1311 decide whether to run tests for quotas > 2G.
1312
1313PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1314 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1315 filecount value is greater than 2G or if a quota value is greater than 2G
1316 on a system where the size of off_t is not greater than 4, a panic error
1317 is given.
1318
1688f43b
PH
1319PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1320 never match. The debug and -bh output now contains an explicit error
1321 message indicating a malformed IPv4 address or mask.
1322
1323PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1324 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1325 PH/23 above applies.
1326
9675b384
PH
1327PH/25 Do not write to syslog when running in the test harness. The only
1328 occasion when this arises is a failure to open the main or panic logs
1329 (for which there is an explicit test).
1330
6a3f1455
PH
1331PH/26 Added the /no_tell option to "control=freeze".
1332
dac79d3e
PH
1333PH/27 If a host name lookup failed very early in a connection, for example, if
1334 the IP address matched host_lookup and the reverse lookup yielded a name
1335 that did not have a forward lookup, an error message of the form "no IP
1336 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1337 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1338
5977a0b3
PH
1339PH/28 An enabling patch from MH: add new function child_open_exim2() which
1340 allows the sender and the authenticated sender to be set when
1341 submitting a message from within Exim. Since child_open_exim() is
1342 documented for local_scan(), the new function should be too.
1343
c91535f3
PH
1344PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1345 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1346 results in an empty string is now treated as unset.
1347
0d46a8c8
PH
1348PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1349
278c6e6c
PH
1350PH/31 Added sender_verify_fail logging option.
1351
2cbb4081
PH
1352PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1353 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1354 tidied the source and removed it altogether.
1355
3eef829e
PH
1356PH/33 When a queue run was abandoned because the load average was too high, a
1357 log line was always written; now it is written only if the queue_run log
1358 selector is set. In addition, the log line for abandonment now contains
1359 information about the queue run such as the pid. This is always present
1360 in "start" and "stop" lines but was omitted from the "abandon" line.
1361
1ab95fa6
PH
1362PH/34 Omit spaces between a header name and the colon in the error message that
1363 is given when verify = headers_syntax fails (if there are lots of them,
1364 the message gets confusing).
1365
230205fc
PH
1366PH/35 Change the default for dns_check_names_pattern to allow slashes within
1367 names, as there are now some PTR records that contain slashes. This check
1368 is only to protect against broken name servers that fall over on strange
1369 characters, so the fact that it applies to all lookups doesn't matter.
1370
75e0e026
PH
1371PH/36 Now that the new test suite is complete, we can remove some of the
1372 special code in Exim that was needed for the old test suite. For example,
1373 sorting DNS records because real resolvers return them in an arbitrary
1374 order. The new test suite's fake resolver always returns records in the
1375 same order.
1376
1377PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1378 bounces) except when queue_only is set, to avoid logging races between
1379 the different processes.
1380
145396a6
PH
1381PH/38 Panic-die if .include specifies a non-absolute path.
1382
3cd34f13
PH
1383PH/39 A tweak to the "H" retry rule from its user.
1384
11121d3d
JJ
1385JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1386 a label. They prevented compilation on older perls.
1387
1388JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1389 a warning to be raised on newish perls.
1390
1391JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1392 on queue. Changes to match documented behaviour of showing count of
1393 messages matching specified criteria.
1394
8def5aaf
PH
1395PH/40 Changed the default ident timeout from 30s to 5s.
1396
929ba01c
PH
1397PH/41 Added support for the use of login_cap features, on those BSD systems
1398 that have them, for controlling the resources used by pipe deliveries.
1399
2632889e
PH
1400PH/42 The content-scanning code uses fopen() to create files in which to put
1401 message data. Previously it was not paying any attention to the mode of
1402 the files. Exim runs with umask(0) because the rest of the code creates
1403 files with open(), and sets the required mode explicitly. Thus, these
1404 files were ending up world-writeable. This was not a big issue, because,
1405 being within the spool directory, they were not world-accessible. I have
1406 created a function called modefopen, which takes an additional mode
1407 argument. It sets umask(777), creates the file, chmods it to the required
1408 mode, then resets the umask. All the relevant calls to fopen() in the
1409 content scanning code have been changed to use this function.
1410
944a9c55
PH
1411PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1412 to 24 hours. This avoids potential overflow problems when processing G
1413 and H retry rules. I suspect nobody ever tinkers with this value.
1414
4a23603b
PH
1415PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1416
4730f942
PH
1417PH/45 When the plaintext authenticator is running as a client, the server's
1418 challenges are checked to ensure they are valid base64 strings. By
1419 default, the authentication attempt is cancelled if an invalid string is
1420 received. Setting client_ignore_invalid_base64 true ignores these errors.
1421 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1422 they are received. Thus, the responses can be made to depend on the
1423 challenges. If an invalid string is ignored, an empty string is placed in
1424 the variable.
1425
30dba1e6
PH
1426PH/46 Messages that are created by the autoreply transport now contains a
1427 References: header, in accordance with RFCs 2822 and 3834.
1428
382afc6b
PH
1429PH/47 Added authenticated_sender_force to the smtp transport.
1430
a86229cf
PH
1431PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1432
50c99ba6
PH
1433PH/49 Installed latest patch from the Sieve maintainer.
1434
d35e429d
PH
1435PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1436 was also set, the appendfile transport was unnecessarily scanning a
1437 directory of message files (e.g. for maildir delivery) to find the count
1438 of files (along with the size), even though it did not need this
1439 information. It now does the scan only if it needs to find either the
1440 size of the count of files.
1441
f90d018c
PH
1442PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1443
75def545
PH
1444PH/52 Two bugs concerned with error handling when the smtp transport is
1445 used in LMTP mode:
1446
1447 (i) Exim was not creating retry information for temporary errors given
1448 for individual recipients after the DATA command when the smtp transport
1449 was used in LMTP mode. This meant that they could be retried too
1450 frequently, and not timed out correctly.
1451
1452 (ii) Exim was setting the flag that allows error details to be returned
1453 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1454 recipients that were returned after the DATA command.
1455
1456PH/53 This is related to PH/52, but is more general: for any failing address,
1457 when detailed error information was permitted to be returned to the
1458 sender, but the error was temporary, then after the final timeout, only
1459 "retry timeout exceeded" was returned. Now it returns the full error as
1460 well as "retry timeout exceeded".
1461
c46782ef
PH
1462PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1463 do this, and (what is worse) MTAs that accept it.
1464
71fafd95
PH
1465PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1466 will now be deprecated.
1467
2c5db4fd
PH
1468PH/56 New os.c-cygwin from the Cygwin maintainer.
1469
9cf6b11a
JJ
1470JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1471 formats (previously only available in exim formats via -bpr, -bpru,
1472 and -bpra. Now also available in native and exiqgrep formats)
1473
1474JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1475 with very large, slow to parse queues
1476
1477JJ/08 exipick: added ! as generic prefix to negate any criteria format
1478
1479JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1480
898d150f
PH
1481PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1482 responses to authentication challenges, though it was showing the
1483 challenges; (ii) I've removed the CR characters from the debug output for
1484 SMTP output lines.
1485
46218253
PH
1486PH/58 Allow for the insertion of a newline as well as a space when a string
1487 is turned into more than one encoded-word during RFC 2047 encoding. The
1488 Sieve code now uses this.
1489
e97957bc
PH
1490PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1491 data_4xx, lost_connection, tls_required.
1492
81e509d7
PH
1493PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1494 message was being sent as an SMTP response.
1495
3d240ff7
PH
1496PH/61 Add -l and -k options to exicyclog.
1497
b37c4101
PH
1498PH/62 When verifying, if an address was redirected to one new address, so that
1499 verification continued, and the new address failed or deferred after
1500 having set something in $address_data, the value of $address_data was not
1501 passed back to the ACL. This was different to the case when no
1502 redirection occurred. The value is now passed back in both cases.
1503
79378e0f
PH
1504PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1505 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1506 use login_cap.h, so on its own it isn't the distinguishing feature. The
1507 new name refers directly to the setclassresources() function.
1508
e49c7bb4
PH
1509PH/65 Added configuration files for NetBSD3.
1510
d114ec46
PH
1511PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1512
f3d7df6c
PH
1513PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1514 is preferred over IPv4.
1515
715ab376
PH
1516PH/68 The bounce_return_message and bounce_return_body options were not being
1517 honoured for bounces generated during the reception of non-SMTP messages.
1518 In particular, this applied to messages rejected by the ACL. This bug has
1519 been fixed. However, if bounce_return_message is true and bounce_return_
1520 body is false, the headers that are returned for a non-SMTP message
1521 include only those that have been read before the error was detected.
1522 (In the case of an ACL rejection, they have all been read.)
1523
6b31b150
PH
1524PH/69 The HTML version of the specification is now built in a directory called
1525 spec_html instead of spec.html, because the latter looks like a path with
1526 a MIME-type, and this confuses some software.
1527
1528PH/70 Catch two compiler warnings in sieve.c.
1529
d515a917
PH
1530PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1531 function verify_get_ident() calls ip_connect() to connect a socket, but
1532 if the "connect()" function timed out, ip_connect() used to close the
1533 socket. However, verify_get_ident() also closes the socket later, and in
1534 between Exim writes to the log, which may get opened at this point. When
1535 the socket was closed in ip_connect(), the log could get the same file
1536 descriptor number as the socket. This naturally causes chaos. The fix is
1537 not to close the socket in ip_connect(); the socket should be closed by
1538 the function that creates it. There was only one place in the code where
1539 this was missing, in the iplookup router, which I don't think anybody now
1540 uses, but I've fixed it anyway.
1541
9b8fadde
PH
1542PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1543 well as to direct DNS lookups. Otherwise the handling of names in host
1544 lists is inconsistent and therefore confusing.
1545
214e2000 1546
5de37277
PH
1547Exim version 4.60
1548-----------------
1549
cc38ddbf
PH
1550PH/01 Two changes to the default runtime configuration:
1551
1552 (1) Move the checks for relay_from_hosts and authenticated clients from
1553 after to before the (commented out) DNS black list checks.
1554
1555 (2) Add control=submission to the relay_from_hosts and authenticated
1556 clients checks, on the grounds that messages accepted by these
1557 statements are most likely to be submissions.
5de37277 1558
72fdd6ae
PH
1559PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1560
1561 (1) Generate an error if the third argument for the ${prvs expansion is
1562 not a single digit.
1563
1564 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1565 string.
1566
1567 (3) Reset the variables that are obtained from the first argument of
1568 ${prvscheck and used in the second argument before leaving the code,
1569 because their memory is reclaimed, so using them afterwards may do
1570 silly things.
1571
1572 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1573 one (it's much easier than Tom thought :-).
1574
1575 (5) Because of (4), we can now allow for the use of $prvscheck_result
1576 inside the third argument.
cb9328de 1577
cb741023
PH
1578PH/03 For some reason, the default setting of PATH when running a command from
1579 a pipe transport was just "/usr/bin". I have changed it to
1580 "/bin:/usr/bin".
1581
f174f16e
PH
1582PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1583 anything to be listed in the output from -bV.
b2f5a032 1584
c25242d7
PH
1585PH/05 When a filter generated an autoreply, the entire To: header line was
1586 quoted in the delivery log line, like this:
1587
1588 => >A.N.Other <ano@some.domain> <original@ddress> ...
1589
1590 This has been changed so that it extracts the operative address. There
1591 may be more than one such address. If so, they are comma-separated, like
1592 this:
1593
1594 => >ano@some.domain,ona@other.domain <original@ddress> ...
1595
82c19f95
PH
1596PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1597 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1598 not being looked up in the rDNS to get a host name, Exim was showing the
1599 IP address twice in Received: lines, even though the IP addresses were
1600 identical. For example:
1601
1602 Received: from [1.2.3.4] (helo=[1.2.3.4])
1603
1604 However, if the real host name was known, it was omitting the HELO data
1605 if it matched the actual IP address. This has been tidied up so that it
1606 doesn't show the same IP address twice.
1607
d7ffbc12
PH
1608PH/07 When both +timestamp and +memory debugging was on, the value given by
1609 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1610 called by the debug printing, thereby overwriting the timestamp buffer.
1611 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1612
9f526266
PH
1613PH/08 When the original message was included in an autoreply transport, it
1614 always said "this is a copy of the message, including all the headers",
1615 even if body_only or headers_only was set. It now gives an appropriate
1616 message.
1617
87fcc8b9
PH
1618PH/09 Applied a patch from the Sieve maintainer which:
1619
1620 o fixes some comments
1621 o adds the (disabled) notify extension core
1622 o adds some debug output for the result of if/elsif tests
1623 o points to the current vacation draft in the documentation
1624 and documents the missing references header update
1625
1626 and most important:
1627
1628 o fixes a bug in processing the envelope test (when testing
1629 multiple envelope elements, the last element determinted the
1630 result)
1631
456682f5
PH
1632PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1633 Electronic Mail") by including:
1634
1635 Auto-submitted: auto-generated
1636
1637 in the messages that it generates (bounce messages and others, such as
1638 warnings). In the case of bounce messages for non-SMTP mesages, there was
1639 also a typo: it was using "Auto_submitted" (underscore instead of
1640 hyphen). Since every message generated by Exim is necessarily in response
1641 to another message, thes have all been changed to:
1642
1643 Auto-Submitted: auto-replied
1644
1645 in accordance with these statements in the RFC:
1646
1647 The auto-replied keyword:
1648
1649 - SHOULD be used on messages sent in direct response to another
1650 message by an automatic process,
1651
1652 - MUST NOT be used on manually-generated messages,
1653
1654 - MAY be used on Delivery Status Notifications (DSNs) and Message
1655 Disposition Notifications (MDNs),
1656
1657 - MUST NOT be used on messages generated by automatic or periodic
1658 processes, except for messages which are automatic responses to
1659 other messages.
1660
3e46c1aa
PH
1661PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1662 to the default Received: header definition.
456682f5 1663
49826d12
PH
1664PH/12 Added log selector acl_warn_skipped (default on).
1665
eba0c039
PH
1666PH/13 After a successful wildlsearch lookup, discard the values of numeric
1667 variables because (a) they are in the wrong storage pool and (b) even if
1668 they were copied, it wouldn't work properly because of the caching.
1669
a0d6ba8a
PH
1670PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
1671 checking when decoding. Apparently there are clients that generate
1672 overlong encoded strings. Why am I not surprised?
1673
f0917727
PH
1674PH/15 If the first argument of "${if match_address" was not empty, but did not
1675 contain an "@" character, Exim crashed. Now it writes a panic log message
1676 and treats the condition as false.
1677
096fee00
PH
1678PH/16 In autoreply, treat an empty string for "once" the same as unset.
1679
024bd3c2
PH
1680PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
1681 extension "envelope-auth". The code is finished and in agreement with
1682 other implementations, but there is no documentation so far and in fact,
1683 nobody wrote the draft yet. This extension is currently #undef'ed, thus
1684 not changing the active code.
1685
1686 Print executed "if" and "elsif" statements when debugging is used. This
1687 helps a great deal to understand what a filter does.
1688
1689 Document more things not specified clearly in RFC3028. I had all this
1690 sorted out, when out of a sudden new issues came to my mind. Oops."
1691
df199fec
PH
1692PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
1693 (Bugzilla #53).
1694
d27f1df3
PH
1695PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
1696 canonical form (as documented). However, after a host name lookup from
1697 the IP address, check_host() was doing a simple string comparison with
1698 addresses acquired from the DNS when checking that the found name did
1699 have the original IP as one of its addresses. Since any found IPv6
1700 addresses are likely to be in abbreviated form, the comparison could
1701 fail. Luckily, there already exists a function for doing the comparison
1702 by converting both addresses to binary, so now that is used instead of
1703 the text comparison.
1704
96776534
PH
1705PH/20 There was another similar case to PH/19, when a complete host name was
1706 given in a host list; looking up its IP address could give an abbreviated
1707 form, whereas the current host's name might or might not be abbreviated.
1708 The same fix has been applied.
1709
5de37277 1710
9a799bc0
PH
1711Exim version 4.54
1712-----------------
1713
1714PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
1715 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
1716 It now does.
1717
99a4b039
PH
1718PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
1719 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
1720
1721PH/03 Typo: missing ".o" in src/pcre/Makefile.
1722
4b233853
PH
1723PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
1724 header line, restrict the check to what is listed in RFCs 2369 and 2929.
1725 Also, for "Auto-Submitted", treat anything other than "no" as
1726 non-personal, in accordance with RFC 3834. (Previously it treated
1727 anything starting "auto-" as non-personal.)
1728
8857ccfd
PH
1729TF/01 The control=submission/name=... option had a problem with syntax
1730 errors if the name included a slash character. The /name= option
1731 now slurps the rest of the string, so it can include any characters
1732 but it must come last in the list of options (after /sender_retain
1733 or /domain=).
1734
433a2980
PH
1735PH/05 Some modifications to the interface to the fake nameserver for the new
1736 testing suite.
1737
3e46c1aa 1738
9a799bc0 1739
e3a311ba
TK
1740Exim version 4.53
1741-----------------
1742
1743TK/01 Added the "success_on_redirect" address verification option. See
1744 NewStuff for rationale and an example.
1745
13b685f9
PH
1746PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
1747
395ff96d
PH
1748PH/02 Patch to exigrep to allow it to work on syslog lines.
1749
5b68f6e4
PH
1750PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
1751 fread() to skip over the body file's header line, because in Cygwin the
1752 header line is locked and is inaccessible.
1753
1ab52c69
PH
1754PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
1755 co-exist for some time) to make it clear that it is the Exim ID that is
1756 referenced, not the Message-ID: header line.
1757
b07e6aa3
PH
1758PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
1759 string_format() function, because snprintf() does not exist on all
1760 operating systems.
1761
254e032f
PH
1762PH/06 The use of forbid_filter_existstest now also locks out the use of the
1763 ${stat: expansion item.
1764
3af76a81
PH
1765PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
1766 protocol synchronization error", to keep the pedants happy.
1767
2548ba04
PH
1768PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
1769 well as for IRIX systems, when gcc is being used. See the host.c source
1770 file for comments.
1771
b6c6011d
PH
1772PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
1773
cf39cf57
PH
1774PH/10 Named domain lists were not working if used in a queue_smtp_domains
1775 setting.
1776
f1513293
PH
1777PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
1778 transport and to the smtp transport in LMTP mode.
1779
727549a4
PH
1780TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
1781
af46795e
PH
1782PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
1783 run a filter in a subprocess. This could lead to confusion in subsequent
1784 lookups in the parent process. There should also be a search_tidyup() at
1785 the end of the subprocess.
1786
d7b47fd0
PH
1787PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
1788 only if the host matched helo_try_verify_hosts, which caused the
1789 verification to occur when the EHLO/HELO command was issued. The ACL just
1790 tested the remembered result. Now, if a previous verification attempt has
1791 not happened, "verify = helo" does it there and then.
1792
ee744174
JJ
1793JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
1794
b582ab87
PH
1795TK/03 Fix log output including CR from clamd.
1796
41a13e0a
PH
1797PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
1798 exist provoked a memory error which could cause a segfault.
1799
f625cc5a
PH
1800PH/15 Installed PCRE 6.2
1801
1802PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
1803
21f7af35
PH
1804PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
1805 of the problem. Specifically, suggested +O2 rather than +O1 for the
1806 HP-UX compiler.
1807
31480e42
PH
1808PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
1809
2d280592
PH
1810PH/20 If a delivery was routed to a non-standard port by means of an SRV
1811 record, the port was not correctly logged when the outgoing_port log
1812 selector was set (it logged the transort's default port).
1813
7cd1141b
PH
1814PH/21 Added support for host-specific ports to manualroute, queryprogram,
1815 fallback_hosts, and "hosts" in the smtp transport.
1816
1817PH/22 If the log selector "outgoing_port" is set, the port is now also given on
1818 host errors such as "Connection refused".
1819
750af86e
PH
1820PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
1821 authentication with radiusclient 0.4.9:
1822
1823 - Error returned from rc_read_config was caught wrongly
1824 - Username/password not passed on to radius server due to wrong length.
1825
1826 The presumption is that some radiusclient API changes for 4.51/PH/17
1827 were not taken care of correctly. The code is still untested by me (my
1828 Linux distribution still has 0.3.2 of radiusclient), but it was
1829 contributed by a Radius user.
1830
1831PH/24 When doing a callout, the value of $domain wasn't set correctly when
1832 expanding the "port" option of the smtp transport.
1833
4304270b
TK
1834TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
1835 while reading a MIME header. Thanks to Tom Hughes for a patch.
1836
750af86e
PH
1837PH/24 Include config.h inside local_scan.h so that configuration settings are
1838 available.
1839
64ffc24f
PH
1840PH/25 Make $smtp_command_argument available after all SMTP commands. This means
1841 that in an ACL for RCPT (for example), you can examine exactly what was
1842 received.
1843
5dd9625b
PH
1844PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
1845 commands, but it was not correctly comparing the address with the actual
1846 client host address. Thus, it would show the EHLO address in Received:
1847 header lines when this was not necessary.
1848
5591031b
PH
1849PH/27 Added the % operator to ${eval:}.
1850
ba18e66a
PH
1851PH/28 Exim tries to create and chdir to its spool directory when it starts;
1852 it should be ignoring failures (because with -C, for example, it has lost
1853 privilege). It wasn't ignoring creation failures other than "already
1854 exists".
1855
9cec981f
PH
1856PH/29 Added "crypteq" to the list of supported features that Exim outputs when
1857 -bV or -d is used.
1858
aa2b5c79
PH
1859PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
1860 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
1861 too many continuations, the temporary file was not being removed, and the
1862 return code was incorrect.
aa2b5c79 1863
48a53b7f
PH
1864PH/31 Missing "BOOL" in function definition in filtertest.c.
1865
1c59d63b
PH
1866PH/32 Applied Sieve patches from the maintainer.
1867
671012da
TK
1868TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
1869
1509d3a8
PH
1870PH/33 Added "verify = not_blind".
1871
1872PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
1873 Local/Makefile (with some defaults set). These are used in built scripts
1874 such as exicyclog, but they have never been used in the exim_install
1875 script (though there are many overriding facilities there). I have
1876 arranged that the exim_install script now takes note of these two
1877 settings.
1878
1879PH/35 Installed configuration files for Dragonfly.
1880
2fe1a124
PH
1881PH/36 When a locally submitted message by a trusted user did not contain a
1882 From: header, and the sender address was obtained from -f or from an SMTP
1883 MAIL command, and the trusted user did not use -F to supply a sender
1884 name, $originator_name was incorrectly used when constructing a From:
1885 header. Furthermore, $originator_name was used for submission mode
1886 messages from external hosts without From: headers in a similar way,
1887 which is clearly wrong.
1888
8800895a
PH
1889PH/37 Added control=suppress_local_fixups.
1890
ccfdb010
PH
1891PH/38 When log_selector = +received_sender was set, and the addition of the
1892 sender made the log line's construction buffer exactly full, or one byte
1893 less than full, an overflow happened when the terminating "\n" was
1894 subsequently added.
1895
1130bfb0
PH
1896PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
1897 when the result of a list match is failure because a DNS lookup failed.
1898
ebcb507f
PH
1899PH/40 RM_COMMAND is now used in the building process.
1900
c35e155c
PH
1901PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
1902 the "build-* directories that it finds.
1903
95d1f782
PH
1904PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
1905 address in a domain literal was a prefix of an interface address.
1906
fd6de02e
PH
1907PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
1908 when verifying a sender address, unless rewrite_headers is false.
1909
58de37c5
PH
1910PH/44 Wrote a long comment about why errors_to addresses are verified as
1911 recipients, not senders.
1912
261cf466
TF
1913TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
1914 the ratelimit ACL was added.
1915
3ee512ff
PH
1916PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
1917
e08c430f
PH
1918PH/46 Added extra information about PostgreSQL errors to the error string.
1919
bef5a11f
PH
1920PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
1921 avoiding the need to install special zones in a real server. This is
1922 backwards compatible; if it can't find the fake resolver, it drops back.
1923 Thus, both old and new test suites can be run.
1924
7546de58
TF
1925TF/02 Added util/ratelimit.pl
1926
e5d5a95f
TF
1927TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
1928 clock is set back in time.
1929
2e88a017
TF
1930TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
1931 Candler <B.Candler@pobox.com>.
1932
a5f65aa4
TF
1933TF/05 The fix for PH/43 was not completely correct; widen_domains is always
1934 OK for addresses that are the result of redirections.
1935
e7726cbf
PH
1936PH/48 A number of further additions for the benefit of the new test suite,
1937 including a fake gethostbyname() that interfaces to the fake DNS resolver
1938 (see PH/47 above).
1939
a7fdad5b
TF
1940TF/06 The fix for widen_domains has also been applied to qualify_single and
1941 search_parents which are the other dnslookup options that can cause
1942 header rewrites.
1943
6af56900
PH
1944PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
1945 type ("H").
1946
0925ede6
PH
1947PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
1948
66afa403
TF
1949TF/07 Exim produced the error message "an SRV record indicated no SMTP
1950 service" if it encountered an MX record with an empty target hostname.
1951 The message is now "an MX or SRV record indicated no SMTP service".
1952
0154e85a
TF
1953TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
1954 if the DNS of the sending site is misconfigured. This is quite a
1955 common situation. This change restores the behaviour of treating a
1956 helo verification defer as a failure.
1957
16f12c76
PH
1958PH/51 If self=fail was set on a router, the bounce message did not include the
1959 actual error message.
1960
bbe902f0 1961
e5a9dba6
PH
1962Exim version 4.52
1963-----------------
1964
1965TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
1966
22c3b60b
PH
1967PH/01 When a transport filter timed out in a pipe delivery, and the pipe
1968 command itself ended in error, the underlying message about the transport
1969 filter timeout was being overwritten with the pipe command error. Now the
1970 underlying error message should be appended to the second error message.
1971
06a9b4b5
PH
1972TK/01 Fix poll() being unavailable on Mac OSX 10.2.
1973
c1ac6996
PH
1974PH/02 Reduce the amount of output that "make" produces by default. Full output
1975 can still be requested.
1976
9c7a242c
PH
1977PH/03 The warning log line about a condition test deferring for a "warn" verb
1978 was being output only once per connection, rather than after each
1979 occurrence (because it was using the same function as for successful
1980 "warn" verbs). This seems wrong, so I have changed it.
1981
87ba3f5f
PH
1982TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
1983 it should not have, which might have caused a crash in the right
1984 circumstances, but probably never did.
1985
1986PH/04 Installed a modified version of Tony Finch's patch to make submission
1987 mode fix the return path as well as the Sender: header line, and to
1988 add a /name= option so that you can make the user's friendly name appear
1989 in the header line.
1990
29aba418
TF
1991TF/03 Added the control = fakedefer ACL modifier.
1992
fe0dab11
TF
1993TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
1994 Mark Lowes for thorough testing.
870f6ba8 1995
11d337a4
TK
1996TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
1997
1998TK/03 Merged latest SRS patch from Miles Wilton.
1999
415c8f3b
PH
2000PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2001 with the definition in sysexits.h (which is #included earlier).
2002 Fortunately, Exim does not actually use EX_OK. The code used to try to
2003 preserve the sysexits.h value, by assumimg that macro definitions were
2004 scanned for macro replacements. I have been disabused of this notion,
2005 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2006
958541e9
PH
2007PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2008 in the smtp transport. When a block could not be written in a single
2009 write() function, the timeout was being re-applied to each part-write.
2010 This seems wrong - if the receiver was accepting one byte at a time it
2011 would take for ever. The timeout is now adjusted when this happens. It
2012 doesn't have to be particularly precise.
2013
c206415f
TK
2014TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2015 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2016
2a4be8f9
PH
2017PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2018 without a domain if the check to <postmaster@domain> fails.
2019
1cba11c5
SC
2020SC/01 Eximstats: added -xls and the ability to specify output files
2021 (patch written by Frank Heydlauf).
2022
2023SC/02 Eximstats: use FileHandles for outputing results.
2024
2025SC/03 Eximstats: allow any combination of xls, txt, and html output.
2026
2027SC/04 Eximstats: fixed display of large numbers with -nvr option
2028
2029SC/05 Eximstats: fixed merging of reports with empty tables.
2030
2031SC/06 Eximstats: added the -include_original_destination flag
2032
2033SC/07 Eximstats: removed tabs and trailing whitespace.
2034
1005d00e
TK
2035TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2036
2037TK/06 MBOX spool code: Add real "From " MBOX separator line
2038 so the .eml file is really in mbox format (even though
2039 most programs do not really care). Patch from Alex Miller.
2040
2041TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2042 The latter is generated from $received_to and is only set if the
2043 message has one envelope recipient. SA can use these headers,
2044 obviously out-of-the-box. Patch from Alex Miller.
2045
9b4768fa
PH
2046PH/08 The ${def test on a variable was returning false if the variable's
2047 value was "0", contrary to what the specification has always said!
2048 The result should be true unless the variable is empty.
2049
2050PH/09 The syntax error of a character other than { following "${if
2051 def:variable_name" (after optional whitespace) was not being diagnosed.
2052 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2053 accidental colon was present, for example, could give incorrect results.
2054
0d7eb84a
PH
2055PH/10 Tidied the code in a number of places where the st_size field of a stat()
2056 result is used (not including appendfile, where other changes are about
2057 to be made).
2058
2059PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2060 This involved changing a lot of size variables from int to off_t. It
2061 should work with maildirs and everything.
2062
40727bee
TK
2063TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2064 spamd dying while we are connected to it.
2065
554d2369
TF
2066TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2067 <jgh@wizmail.org>
2068
1f922db1
PH
2069PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2070 function for BDB 4.3.
2071
ef213c3b
PH
2072PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2073
8ac170f3
PH
2074PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2075 the sources for PCRE have been re-arranged and more files are now
2076 involved.
2077
b1c749bb
PH
2078PH/15 The code I had for printing potentially long long variables in PH/11
2079 above was not the best (it lost precision). The length of off_t variables
2080 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2081 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2082 to be "long long int" or "long int". This is needed for the internal
2083 formatting function string_vformat().
b1c749bb 2084
4aac9b49
PH
2085PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2086 the configuration file to be ":syslog", then the script "guesses" where
2087 the logs files are, rather than using the compiled in default. In our
2088 case the guess is not the same as the compiled default, so the script
2089 suddenly stopped working when I started to use syslog. The patch checks
2090 to see if log_file_path is "". If so, it attempts to read it from exim
2091 with no configuration file to get the compiled in version, before it
2092 falls back to the previous guessing code."
2093
294520c8
TK
2094TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2095 implementing BATV in an Exim configuration. See NewStuff for the gory
2096 details.
2097
5bd022fe
PH
2098PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2099 Makefile that are specific to HP-UX.
2100
90e9ce59
PH
2101PH/18 If the "use_postmaster" option was set for a recipient callout together
2102 with the "random" option, the postmaster address was used as the MAIL
2103 FROM address for the random test, but not for the subsequent recipient
2104 test. It is now used for both.
2105
5ea81592
PH
2106PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2107 patch removes a few documentation additions to RFC 3028, because the
2108 latest draft now contains them. It adds the new en;ascii-case comparator
2109 and a new error check for 8bit text in MIME parts. Comparator and
2110 require names are now matched exactly. I enabled the subaddress
2111 extension, but it is not well tested yet (read: it works for me)."
2112
c6c2dc1d
PH
2113PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2114 rework some of the code of TK/09 above to avoid the hardwired use of
2115 "%lld" and "long long". Replaced the call to snprintf() with a call to
2116 string_vformat().
2117
fffffe4c
PH
2118PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2119 records point to non-existent hosts", "retry timeout exceeded", and
2120 "retry time not reached for any host after a long failure period".
ca02eafb 2121
9a26b6b2
PH
2122PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2123 experimental DomainKeys support:
2124
2125 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2126 (2) On an error such as an illegally used "control", the wrong name for
2127 the control was given.
2128
2129 These problems did NOT occur unless DomainKeys support was compiled.
2130
4aee0225
PH
2131PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2132
32d668a5
PH
2133PH/24 Added ${if match_ip condition.
2134
8187c3f3
PH
2135PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2136 databases so that it will be absolutely obvious if a crash occurs in the
2137 DB library. This is a regular occurrence (often caused by mis-matched
2138 db.h files).
2139
ff790e47 2140PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2141 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2142 picked up on a user's system that detects such things. There doesn't seem
2143 to be a gcc warning option for this - only an attribute that has to be
2144 put on the function's prototype. It seems that in Fedora Core 4 they have
2145 set this on a number of new functions. No doubt there will be more in due
2146 course.
ff790e47 2147
5417f6d1
PH
2148PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2149 specify a transport. However, if an address that was verified by such a
2150 router was the subject of a callout, Exim crashed because it tried to
2151 read the rcpt_include_affixes from the non-existent transport. Now it
2152 just assumes that the setting of that option is false. This bug was
2153 introduced by 4.51/PH/31.
2154
59cf8544
PH
2155PH/28 Changed -d+all to exclude +memory, because that information is very
2156 rarely of interest, but it makes the output a lot bigger. People tend to
2157 do -d+all out of habit.
2158
e7ad8a65
PH
2159PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2160 code in os-type was giving problems when libc.so lives in lib64, like on
2161 x86_64 Fedora Core.
2162
ade42478
PH
2163PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2164 aren't the modern standard, and it seems that some systems' include files
2165 don't always have them. Exim was already checking for some of the newer
2166 ones like T_AAAA, and defining it itself. I've added checks for all the
2167 record types that Exim uses.
2168
182ad5cf
PH
2169PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2170 not automatically generating a new one, as it is supposed to. This
2171 prevented TLS from working. If the file did exist, but contained invalid
2172 data, a new version was generated, as expected. It was only the case of a
2173 non-existent file that was broken.
2174
b0d9fc80
TK
2175TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2176 with a change in libdomainkeys > 0.64.
2177
2178TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2179 from DNS. If the selector record carries the flag, it now has
2180 precedence over the domain-wide flag.
2181
2182TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2183
47c7a64a
PH
2184PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2185 the use of a port name that isn't defined in /etc/services) occurred, the
2186 message was deferred as in a normal delivery, and thus remained on the
2187 spool, instead of being failed because of the mua_wrapper setting. This
2188 is now fixed, and I tidied up some of the mua_wrapper messages at the
2189 same time.
2190
a388bce4
SC
2191SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2192 the messages in a hash of arrays rather than using individual hashes.
2193 This is a bit cleaner and results in dramatic memory savings, albeit
2194 at a slight CPU cost.
2195
2196SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2197 as requested by Marc Sherman.
2198
2199SC/10 Eximstats: added histograms for user specified patterns as requested
2200 by Marc Sherman.
2201
0793e4ed
SC
2202SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2203
c58b88df
PH
2204PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2205 fopen() in the content-scanning modules that did not already have it.
2206
e7ad8a65 2207
7982096b
PH
2208Exim version 4.51
2209-----------------
2210
1a46a8c5
PH
2211TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2212 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2213
2f079f46 2214TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2215
2216TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2217
2218PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2219 to test Sieve filters that use "vacation".
2220
2221PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2222 that changes the way the GnuTLS parameters are stored in the cache file.
2223 The new format can be generated externally. For backward compatibility,
2224 if the data in the cache doesn't make sense, Exim assumes it has read an
2225 old-format file, and it generates new data and writes a new file. This
2226 means that you can't go back to an older release without removing the
2227 file.
2228
2229PH/03 A redirect router that has both "unseen" and "one_time" set does not
2230 work if there are any delivery delays because "one_time" forces the
2231 parent to be marked "delivered", so its unseen clone is never tried
2232 again. For this reason, Exim now forbids the simultaneous setting of
2233 these two options.
2234
2235PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2236 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2237 entry if you want to know the details. The fix, however, neglected to
2238 consider the case when local delivery batching is involved. The test for
2239 "previously delivered" was not happening when checking to see if an
2240 address could be batched with a previous (undelivered) one; under
2241 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2242 address.
1a46a8c5
PH
2243
2244PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2245 in its include files, and this causes problems building Exim.
2246
2247PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2248 header_syntax) but Exim was just ignoring anything given after a slash.
2249 In particular, this caused confusion with an attempt to use "verify =
2250 reverse_host_lookup/defer_ok". An error is now given when options are
2251 supplied for verify items that do not have them. (Maybe reverse_host_
2252 lookup should have a defer_ok option, but that's a different point.)
2253
2254PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2255 defined by RFC 821) to 2048, because there were problems with some AUTH
2256 commands, and RFC 1869 says the size should be increased for extended
2257 SMTP commands that take arguments.
2258
2259PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2260 Finch).
2261
2262PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2263 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2264
49c2d5ea
PH
2265PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2266 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2267 whatever). Otherwise the password may appear in the log. Following change
2268 PH/42 below, there is no longer a chance of it appearing in a bounce
2269 message.
49c2d5ea 2270
bf759a8b
PH
2271PH/11 Installed exipick version 20050225.0 from John Jetmore.
2272
83364d30
PH
2273PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2274 of its addresses was ever tried. (Bugzilla bug #2.)
2275
7999bbd7
PH
2276PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2277 the result incorrectly in the debug output. (It correctly added a newline
2278 to what was transported.)
2279
7dbf77c9
PH
2280TF/01 Added $received_time.
2281
74e0617f
PH
2282PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2283 commented out examples of how to interface to a virus scanner and to
2284 SpamAssassin. Also added commented examples of av_scanner and
2285 spamd_address settings.
2286
2f079f46
PH
2287PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2288 and controls are allowed in which ACLs. There were a couple of minor
2289 errors. Some of the entries in the conditions table (which is a table of
2290 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2291 negation of where the condition IS allowed.
2292
8c841523
PH
2293PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2294
7766a4f0
PH
2295PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2296 header file does not have a version number, so I've had to invent a new
2297 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2298 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2299 radiusclient), but it was contributed by a Radius user.
2300
8b417f2c
PH
2301PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2302 files or directories, for OpenSSL.
2303
901f42cb
PH
2304PH/19 When an Exim process that is running as root has to create an Exim log
2305 file, it does so in a subprocess that runs as exim:exim so as to get the
2306 ownership right at creation (otherwise, other Exim processes might see
2307 the file with the wrong ownership). There was no test for failure of this
2308 fork() call, which would lead to the process getting stuck as it waited
2309 for a non-existent subprocess. Forks do occasionally fail when resources
2310 run out. I reviewed all the other calls to fork(); they all seem to check
2311 for failure.
2312
f9b9210e
PH
2313PH/20 When checking for unexpected SMTP input at connect time (before writing
2314 the banner), Exim was not dealing correctly with a non-positive return
2315 from the read() function. If the client had disconnected by this time,
2316 the result was a log entry for a synchronization error with an empty
2317 string after "input=" when read() returned zero. If read() returned -1
2318 (an event I could not check), uninitialized data bytes were printed.
2319 There were reports of junk text (parts of files, etc) appearing after
2320 "input=".
2321
54cdb463
PH
2322PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2323
cf00dad6
PH
2324PH/22 Added support for macro redefinition, and (re)definition in between
2325 driver and ACL definitions.
2326
acb1b346
PH
2327PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2328 forgetting to use the resulting value; it was using the unexpanded value.
2329
c5ddb310
PH
2330PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2331 hadn't been configured. The fix is from Juergen Kreileder, who
2332 understands it better than I do:
2333
2334 "Here's what I see happening with three configured cyrus_sasl
2335 authenticators configured (plain, login, cram-md5):
2336
2337 On startup auth_cyrus_sasl_init() gets called for each of these.
2338 This means three calls to sasl_listmech() without a specified mech_list.
2339 => SASL tests which mechs of all available mechs actually work
2340 => three warnings about OTP not working
2341 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2342
2343 With the patch, sasl_listmech() also gets called three times. But now
2344 SASL's mech_list option is set to the server_mech specified in the the
2345 authenticator. Or in other words, the answer from sasl_listmech()
2346 gets limited to just the mech you're testing for (which is different
2347 for each call.)
2348 => the return list contains just 'plain' or 'login', 'cram-md5' or
2349 nothing depending on the value of ob->server_mech.
2350
2351 I've just tested the patch: Authentication still works fine,
2352 unavailable mechs specified in the exim configuration are still
2353 caught, and the auth.log warnings about OTP are gone."
2354
31619da6
PH
2355PH/25 When debugging is enabled, the contents of the command line are added
2356 to the debugging output, even when log_selector=+arguments is not
2357 specified.
2358
bebaf0fc
PH
2359PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2360 answer is "GNU", and only if the return is "GNU/something" is the answer
2361 "Linux".
2362
475fe28a
PH
2363PH/27 $acl_verify_message is now set immediately after the failure of a
2364 verification in an ACL, and so is available in subsequent modifiers. In
2365 particular, the message can be preserved by coding like this:
2366
2367 warn !verify = sender
2368 set acl_m0 = $acl_verify_message
2369
2370 Previously, $acl_verify_message was set only while expanding "message"
2371 and "log_message" when a very denied access.
2372
7e8bec7a
PH
2373PH/28 Modified OS/os.c-Linux with
2374
2375 -#ifndef OS_LOAD_AVERAGE
2376 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2377
2378 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2379 nomenclature these days.)
2380
e4a89c47
PH
2381PH/29 Installed patch from the Sieve maintainer that adds the options
2382 sieve_useraddress and sieve_subaddress to the redirect router.
2383
5ca2a9a1
PH
2384PH/30 In these circumstances:
2385 . Two addresses routed to the same list of hosts;
2386 . First host does not offer TLS;
2387 . First host accepts first address;
2388 . First host gives temporary error to second address;
2389 . Second host offers TLS and a TLS session is established;
2390 . Second host accepts second address.
2391 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2392 and peerdn, if requested) that were in fact used only for the second
2393 address.
7e8bec7a 2394
c688b954
PH
2395PH/31 When doing a callout as part of verifying an address, Exim was not paying
2396 attention to any local part prefix or suffix that was matched by the
2397 router that accepted the address. It now behaves in the same way as it
2398 does for delivery: the affixes are removed from the local part unless
2399 rcpt_include_affixes is set on the transport.
2400
fed77020
PH
2401PH/32 Add the sender address, as F=<...>, to the log line when logging a
2402 timeout during the DATA phase of an incoming message.
2403
7fe1560f
PH
2404PH/33 Sieve envelope tests were broken for match types other than :is. I have
2405 applied a patch sanctioned by the Sieve maintainer.
c688b954 2406
ebb6e6d5
PH
2407PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2408 the uid or gid is negative. A case of a negative gid caused this to be
2409 noticed. The fix allows for either to be negative.
2410
9c4e8f60
PH
2411PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2412 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2413 overlooked.
2414
2415PH/36 The change PH/12 above was broken. Fixed it.
2416
d7174846
PH
2417PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2418 the grounds that routing the same address twice would always produce the
2419 same answer. This might have been true once, but it is certainly no
2420 longer true now. Routing a child address may depend on the previous
2421 routing that produced that child. Some complicated redirection strategies
2422 went wrong when messages had multiple recipients, and made Exim's
2423 behaviour dependent on the order in which the addresses were given.
2424
2425 I have moved the duplicate checking until after the routing is complete.
2426 Exim scans the addresses that are assigned to local and remote
2427 transports, and removes any duplicates. This means that more work will be
2428 done, as duplicates will always all be routed, but duplicates are
2429 presumably rare, so I don't expect this is of any significance.
2430
2431 For deliveries to pipes, files, and autoreplies, the duplicate checking
2432 still happens during the routing process, since they are not going to be
2433 routed further.
2434
cfe75fc3
PH
2435PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2436 It corrects a timeout issue with spamd. This is Ian's comment: "The
2437 background is that sometimes spamd either never reads data from a
2438 connection it has accepted, or it never writes response data. The exiscan
2439 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2440 blindly assumes that writes won't block so it may never time out."
2441
be22d70e
PH
2442PH/39 Allow G after quota size as well as K and M.
2443
0612b098
PH
2444PH/40 The value set for $authenticated_id in an authenticator may not contain
2445 binary zeroes or newlines because the value is written to log lines and
2446 to spool files. There was no check on this. Now the value is run through
2447 the string_printing() function so that such characters are converted to
2448 printable escape sequences.
2449
2e0c1448
PH
2450PH/41 $message_linecount is a new variable that contains the total number of
2451 lines in the message. Compare $body_linecount, which is the count for the
2452 body only.
2453
447d236c
PH
2454PH/42 Exim no longer gives details of delivery errors for specific addresses in
2455 bounce and delay warning messages, except in certain special cases, which
2456 are as follows:
2457
2458 (a) An SMTP error message from a remote host;
2459 (b) A message specified in a :fail: redirection;
2460 (c) A message specified in a "fail" command in a system filter;
2461 (d) A message specified in a FAIL return from the queryprogram router;
2462 (e) A message specified by the cannot_route_message router option.
2463
2464 In these cases only, Exim does include the error details in bounce and
2465 warning messages. There are also a few cases where bland messages such
2466 as "unrouteable address" or "local delivery error" are given.
2467
d20976dc
PH
2468PH/43 $value is now also set for the "else" part of a ${run expansion.
2469
f656d135
PH
2470PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2471 being worked on, but at least Exim now implements the latest version to
2472 play with."
2473
2e2a30b4
PH
2474PH/45 In a pipe transport, although a timeout while waiting for the pipe
2475 process to complete was treated as a delivery failure, a timeout while
2476 writing the message to the pipe was logged, but erroneously treated as a
2477 successful delivery. Such timeouts include transport filter timeouts. For
2478 consistency with the overall process timeout, these timeouts are now
2479 treated as errors, giving rise to delivery failures by default. However,
2480 there is now a new Boolean option for the pipe transport called
2481 timeout_defer, which, if set TRUE, converts the failures into defers for
2482 both kinds of timeout. A transport filter timeout is now identified in
2483 the log output.
2484
9176e9f0
PH
2485PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2486 systems where "make" and "gmake" are different, calling "gmake" at top
2487 level broke things. I've arranged for the value of $(MAKE) to be passed
2488 from the Makefile to this script so that it can call the same version of
2489 "make".
2490
7982096b 2491
bbe902f0
PH
2492A note about Exim versions 4.44 and 4.50
2493----------------------------------------
2494
2495Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2496changes of various kinds. As a consequence, a big documentation update was
2497needed. This delayed the release for rather longer than seemed good, especially
2498in the light of a couple of (minor) security issues. Therefore, the changes
2499that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2500release. So 4.44 and 4.50 are in effect two different branches that both start
2501from 4.43.
2502
2503I have left the 4.50 change log unchanged; it contains all the changes since
25044.43. The change log for 4.44 is below; many of its items are identical to
2505those for 4.50. This seems to be the most sensible way to preserve the
2506historical information.
2507
2508
f7b63901 2509Exim version 4.50
495ae4b0
PH
2510-----------------
2511
5fe762f6
PH
2512 1. Minor wording change to the doc/README.SIEVE file.
2513
139059f6 2514 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2515 computation of the current number of files was incorrect.
495ae4b0 2516
7086e875
PH
2517 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2518 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2519 place.
2520
35af9f61
PH
2521 4. Give more explanation in the error message when the command for a transport
2522 filter fails to execute.
2523
b668c215
PH
2524 5. There are several places where Exim runs a non-Exim command in a
2525 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2526 was being done only for the command run by the queryprogram router. It is
2527 now done for all such subprocesses. The other cases are: ${run, transport
2528 filters, and the commands run by the lmtp and pipe transports.
2529
a494b1e1
PH
2530 6. Added CONFIGURE_GROUP build-time option.
2531
2532 7. Some older OS have a limit of 256 on the maximum number of file
2533 descriptors. Exim was using setrlimit() to set 1000 as a large value
2534 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2535 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2536
c5fcb476
PH
2537 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2538 was an oversight, and furthermore, ever since the addition of extra
2539 controls (e.g. 4.43/32), the checks on when to allow different forms of
2540 "control" were broken. There should now be diagnostics for all cases when a
2541 control that does not make sense is encountered.
2542
69358f02
PH
2543 9. Added the /retain_sender option to "control=submission".
2544
5be20824
PH
254510. $recipients is now available in the predata ACL (oversight).
2546
eb2c0248
PH
254711. Tidy the search cache before the fork to do a delivery from a message
2548 received from the command line. Otherwise the child will trigger a lookup
2549 failure and thereby defer the delivery if it tries to use (for example) a
2550 cached ldap connection that the parent has called unbind on.
2551
2a3eea10
PH
255212. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2553 of $address_data from the recipient verification was clobbered by the
2554 sender verification.
2555
255613. The value of address_data from a sender verification is now available in
2557 $sender_address_data in subsequent conditions in the ACL statement.
2558
23c7ff99
PH
255914. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2560
4deaf07d
PH
256115. Added a new option "connect=<time>" to callout options, to set a different
2562 connection timeout.
2563
926e1192
PH
256416. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2565 was its contents. (It was OK if the option was not defined at all.)
2566
650edc6f
PH
256717. A "Completed" log line is now written for messages that are removed from
2568 the spool by the -Mrm option.
2569
2c7db3f5
PH
257018. New variables $sender_verify_failure and $recipient_verify_failure contain
2571 information about exactly what failed.
2572
3d235903
PH
257319. Added -dd to debug only the daemon process.
2574
7c7ad977
PH
257520. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2576 handles timeouts, both on the server side and network timeouts. Renamed the
2577 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2578
981756db
PH
257921. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2580 It is now set to "smtps".
2581
d4eb88df
PH
258222. $host_address is now set to the target address during the checking of
2583 ignore_target_hosts.
2584
258523. When checking ignore_target_hosts for an ipliteral router, no host name was
2586 being passed; this would have caused $sender_host_name to have been used if
2587 matching the list had actually called for a host name (not very likely,
2588 since this list is usually IP addresses). A host name is now passed as
2589 "[x.x.x.x]".
2590
7d468ab8
PH
259124. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2592 code that specifies a non-restarting handler (typically sigaction() in
2593 modern systems) in an attempt to fix a rare and obscure crash bug.
2594
259525. Narrowed the window for a race in the daemon that could cause it to ignore
2596 SIGCHLD signals. This is not a major problem, because they are used only to
2597 wake it up if nothing else does.
2598
62c0818f
PH
259926. A malformed maildirsize file could cause Exim to calculate negative values
2600 for the mailbox size or file count. Odd effects could occur as a result.
2601 The maildirsize information is now recalculated if the size or filecount
2602 end up negative.
2603
26034054
PH
260427. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2605 support for a long time. Removed HAVE_SYS_VFS_H.
2606
af66f652
PH
260728. Installed the latest version of exipick from John Jetmore.
2608
90af77f4
PH
260929. In an address list, if the pattern was not a regular expression, an empty
2610 subject address (from a bounce message) matched only if the pattern was an
2611 empty string. Non-empty patterns were not even tested. This was the wrong
2612 because it is perfectly reasonable to use an empty address as part of a
2613 database query. An empty address is now tested by patterns that are
2614 lookups. However, all the other forms of pattern expect the subject to
2615 contain a local part and a domain, and therefore, for them, an empty
2616 address still always fails if the pattern is not itself empty.
2617
d8ef3577
PH
261830. Exim went into a mad DNS loop when attempting to do a callout where the
2619 host was specified on an smtp transport, and looking it up yielded more
2620 than one IP address.
2621
5cb8cbc6
PH
262231. Re-factored the code for checking spool and log partition space into a
2623 function that finds that data and another that does the check. The former
2624 is then used to implement four new variables: $spool_space, $log_space,
2625 $spool_inodes, and $log_inodes.
2626
14702f5b
PH
262732. The RFC2047 encoding function was originally intended for short strings
2628 such as real names; it was not keeping to the 75-character limit for
2629 encoded words that the RFC imposes. It now respects the limit, and
2630 generates multiple encoded words if necessary. To be on the safe side, I
2631 have increased the buffer size for the ${rfc2047: expansion operator from
2632 1024 to 2048 bytes.
2633
063b1e99
PH
263433. It is now permitted to omit both strings after an "if" condition; if the
2635 condition is true, the result is "true". As before, when the second string
2636 is omitted, a false condition yields an empty string. This makes it less
2637 cumbersome to write custom ACL and router conditions.
2638
652e1b65
PH
263934. Failure to deliver a bounce message always caused it to be frozen, even if
2640 there was an errors_to setting on the router. The errors_to setting is now
2641 respected.
2642
6f0c9a4f
PH
264335. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2644 canonical form (fully expanded) before being placed in
2645 $sender_host_address.
2646
33397d19
PH
264736. The table in the code that translates DNS record types into text (T_A to
2648 "A" for instance) was missing entries for NS and CNAME. It is just possible
2649 that this could have caused confusion if both these types were looked up
2650 for the same domain, because the text type is used as part of Exim's
2651 per-process caching. But the chance of anyone hitting this buglet seems
2652 very small.
2653
7bb56e1f
PH
265437. The dnsdb lookup has been extended in a number of ways.
2655
2656 (1) There is a new type, "zns", which walks up the domain tree until it
2657 finds some nameserver records. It should be used with care.
2658
ea3bc19b
PH
2659 (2) There is a new type, "mxh", which is like "mx" except that it returns
2660 just the host names, not the priorities.
2661
2662 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
2663 looked up. The behaviour when one of the lookups defers can be
2664 controlled by a keyword.
7bb56e1f 2665
ea3bc19b 2666 (4) It is now possible to specify the separator character for use when
7bb56e1f 2667 multiple records are returned.
33397d19 2668
0bcb2a0e
PH
266938. The dnslists ACL condition has been extended: it is now possible to supply
2670 a list of IP addresses and/or domains to be looked up in a particular DNS
2671 domain.
2672
2ac0e484
PH
267339. Added log_selector=+queue_time_overall.
2674
4e1fde53
PH
267540. When running the queue in the test harness, wait just a tad after forking a
2676 delivery process, to get repeatability of debugging output.
2677
de365ded
PH
267841. Include certificate and key file names in error message when GnuTLS fails
2679 to set them up, because the GnuTLS error message doesn't include the name
2680 of the failing file when there is a problem reading it.
2681
f05da2e8
PH
268242. Allow both -bf and -bF in the same test run.
2683
d6453af2
PH
268443. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
2685
f7b63901
PH
268644. The "Exiscan patch" is now merged into the mainline Exim source.
2687
268845. Sometimes the final signoff response after QUIT could fail to get
2689 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
2690 < 0 before doing a fflush(). This bug looks as though it goes back to the
2691 introduction of TLS in release 3.20, but "sometimes" must have been rare
2692 because the tests only now provoked it.
2693
a444213a
PH
269446. Reset the locale to "C" after calling embedded Perl, in case it was changed
2695 (this can affect the format of dates).
2696
0ec020ea
PH
269747. exim_tidydb, when checking for the continued existence of a message for
2698 which it has found a message-specific retry record, was not finding
2699 messages that were in split spool directories. Consequently, it was
2700 deleting retry records that should have stayed in existence.
2701
b1206957
PH
270248. Steve fixed some bugs in eximstats.
2703
270449. The SPA authentication driver was not abandoning authentication and moving
2705 on to the next authenticator when an expansion was forced to fail,
2706 contradicting the general specification for all authenticators. Instead it
2707 was generating a temporary error. It now behaves as specified.
2708
26dd5a95
PH
270950. The default ordering of permitted cipher suites for GnuTLS was pessimal
2710 (the order specifies the preference for clients). The order is now AES256,
2711 AES128, 3DES, ARCFOUR128.
2712
343b2385
PH
271351. Small patch to Sieve code - explicitly set From: when generating an
2714 autoreply.
2715
1c5466b9
PH
271652. Exim crashed if a remote delivery caused a very long error message to be
2717 recorded - for instance if somebody sent an entire SpamAssassin report back
2718 as a large number of 550 error lines. This bug was coincidentally fixed by
2719 increasing the size of one of Exim's internal buffers (big_buffer) that
2720 happened as part of the Exiscan merge. However, to be on the safe side, I
2721 have made the code more robust (and fixed the comments that describe what
2722 is going on).
2723
55ee9ee3
PH
272453. Now that there can be additional text after "Completed" in log lines (if
2725 the queue_time_overall log selector is set), a one-byte patch to exigrep
2726 was needed to allow it to recognize "Completed" as not the last thing in
2727 the line.
2728
d38f8232
PH
272954. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
2730 patch that reportedly fixes this has been added. I am not expert enough to
2731 create a test for it. This is what the patch creator wrote:
2732
2733 "I found a little strange behaviour of ldap code when working with
2734 Windows 2003 AD Domain, where users was placed in more than one
2735 Organization Units. When I tried to give exim partial DN, the exit code
2736 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
2737 But simultaneously result of request was absolutely normal ldap result,
2738 so I produce this patch..."
2739
3295e65b
PH
2740 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
2741 REFERENCE, so I have modified the code to exclude the patch when that macro
2742 is not defined.
2743
7102e136
PH
274455. Some experimental protocols are using DNS PTR records for new purposes. The
2745 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
2746 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
2747 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 2748 CAN-2005-0021
7102e136 2749
3ca0ba97
PH
275056. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
2751
c2bcbe20
PH
275257. Double the size of the debug message buffer (to 2048) so that more of very
2753 long debug lines gets shown.
2754
18ce445d
PH
275558. The exicyclog utility now does better if the number of log files to keep
2756 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
2757
1f5b4c3d
PH
275859. Two changes related to the smtp_active_hostname option:
2759
2760 (1) $smtp_active_hostname is now available as a variable.
2761 (2) The default for smtp_banner uses $smtp_active_hostname instead
2762 of $primary_hostname.
2763
b975ba52
PH
276460. The host_aton() function is supposed to be passed a string that is known
2765 to be a valid IP address. However, in the case of IPv6 addresses, it was
2766 not checking this. This is a hostage to fortune. Exim now panics and dies
2767 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
2768 from a dnsdb PTR lookup with an IPv6 address that had more than 8
2769 components; fortuitously, this particular loophole had already been fixed
2770 by change 4.50/55 above.
2771
2772 If there are any other similar loopholes, the new check in host_aton()
2773 itself should stop them being exploited. The report I received stated that
2774 data on the command line could provoke the exploit when Exim was running as
2775 exim, but did not say which command line option was involved. All I could
2776 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
2777 running as the user.
ea3a6f44 2778 CAN-2005-0021
85b87bc2
PH
2779
278061. There was a buffer overflow vulnerability in the SPA authentication code
2781 (which came originally from the Samba project). I have added a test to the
2782 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 2783 CAN-2005-0022
b975ba52 2784
17ffcae7
PH
278562. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
2786 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
2787
d95f9fdb
PH
278863. The daemon start-up calls getloadavg() while still root for those OS that
2789 need the first call to be done as root, but it missed one case: when
2790 deliver_queue_load_max is set with deliver_drop_privilege. This is
2791 necessary for the benefit of the queue runner, because there is no re-exec
2792 when deliver_drop_privilege is set.
2793
86b8287f
PH
279464. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
2795 This has been fixed.
2796
60dc5e56
PH
279765. Caching of lookup data for "hosts =" ACL conditions, when a named host list
2798 was in use, was not putting the data itself into the right store pool;
2799 consequently, it could be overwritten for a subsequent message in the same
2800 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
2801 the caching.)
2802
533244af
PH
280366. Added hosts_max_try_hardlimit to the smtp transport, default 50.
2804
a5a28604
PH
280567. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
2806 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
2807 the function were treating the return as a boolean value, which happened to
2808 work because 0=false and not-0=true, but is not correct code.
2809
7e634d24
PH
281068. The host_aton() function was not handling scoped IPv6 addresses (those
2811 with, for example, "%eth0" on the end) correctly.
2812
3e11c26b
PH
281369. Fixed some compiler warnings in acl.c for the bitmaps specified with
2814 negated items (that is, ~something) in unsigned ints. Some compilers
2815 apparently mutter when there is no cast.
2816
6729cf78
PH
281770. If an address verification called from an ACL failed, and did not produce a
2818 user-specific message (i.e. there was only a "system" message), nothing was
2819 put in $acl_verify_message. In this situation, it now puts the system
2820 message there.
2821
00f00ca5
PH
282271. Change 4.23/11 added synchronization checking at the start of an SMTP
2823 session; change 4.31/43 added the unwanted input to the log line - except
2824 that it did not do this in the start of session case. It now does.
2825
c9bdd01c
PH
282672. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
2827 This is wrong and can cause the other end to generate a synchronization
2828 error if it is another Exim or anything else that does the synchronization
2829 check. A QUIT command is no longer sent after a timeout.
2830
d43194df
PH
283173. $host_lookup_deferred has been added, to make it easier to detect DEFERs
2832 during host lookups.
2833
fe5b5d0b
PH
283474. The defer_ok option of callout verification was not working if it was used
2835 when verifying addresses in header lines, that is, for this case:
2836
2837 verify = header_sender/callout=defer_ok
2838
76a2d7ba
PH
283975. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
2840 those file descriptors could be used for SMTP connections. If anything
2841 wrote to stderr (the example that came up was "warn" in embedded Perl), it
2842 could be sent to the SMTP client, causing chaos. The daemon now opens
2843 stdin, stdout, and stderr to /dev/null when it puts itself into the
2844 background.
2845
284676. Arrange for output from Perl's "warn" command to be written to Exim's main
2847 log by default. The user can override this with suitable Perl magic.
2848
04f7d5b9
PH
284977. The use of log_message on a "discard" ACL verb, which is supposed to add to
2850 the log message when discard triggers, was not working for the DATA ACL or
2851 for the non-SMTP ACL.
2852
bc60667e
PH
285378. Error message wording change in sieve.c.
2854
bb6e88ff
PH
285579. If smtp_accept_max_per_host was set, the number of connections could be
2856 restricted to fewer than expected, because the daemon was trying to set up
2857 a new connection before checking whether the processes handling previous
2858 connections had finished. The check for completed processes is now done
2859 earlier. On busy systems, this bug wouldn't be noticed because something
2860 else would have woken the daemon, and it would have reaped the completed
2861 process earlier.
2862
1e70f85b
PH
286380. If a message was submitted locally by a user whose login name contained one
2864 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
2865 It caused a spool format error. I have fixed the spool reading code. A
2866 related problem was that the "from" clause in the Received: line became
2867 illegal because of the space(s). It is now covered by ${quote_local_part.
2868
286981. Included the latest eximstats from Steve (adds average sizes to HTML Top
2870 tables).
2871
4e01f9d6
PH
287282. Updated OS/Makefile-AIX as per message from Mike Meredith.
2873
1ee1cef2
PH
287483. Patch from Sieve maintainer to fix unterminated string problem in
2875 "vacation" handling.
2876
6e2b4ccc
PH
287784. Some minor changes to the Linux configuration files to help with other
2878 OS variants using glibc.
2879
8e669ac1
PH
288085. One more patch for Sieve to update vacation handling to latest spec.
2881
495ae4b0 2882
bbe902f0
PH
2883----------------------------------------------------
2884See the note above about the 4.44 and 4.50 releases.
2885----------------------------------------------------
2886
2887
2888Exim version 4.44
2889-----------------
2890
2891 1. Change 4.43/35 introduced a bug that caused file counts to be
2892 incorrectly computed when quota_filecount was set in an appendfile
2893 transport
2894
2895 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2896 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2897 place.
2898
2899 3. Give more explanation in the error message when the command for a transport
2900 filter fails to execute.
2901
2902 4. There are several places where Exim runs a non-Exim command in a
2903 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2904 was being done only for the command run by the queryprogram router. It is
2905 now done for all such subprocesses. The other cases are: ${run, transport
2906 filters, and the commands run by the lmtp and pipe transports.
2907
2908 5. Some older OS have a limit of 256 on the maximum number of file
2909 descriptors. Exim was using setrlimit() to set 1000 as a large value
2910 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2911 systems. I've change it so that if it can't get 1000, it tries for 256.
2912
2913 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2914 was an oversight, and furthermore, ever since the addition of extra
2915 controls (e.g. 4.43/32), the checks on when to allow different forms of
2916 "control" were broken. There should now be diagnostics for all cases when a
2917 control that does not make sense is encountered.
2918
2919 7. $recipients is now available in the predata ACL (oversight).
2920
2921 8. Tidy the search cache before the fork to do a delivery from a message
2922 received from the command line. Otherwise the child will trigger a lookup
2923 failure and thereby defer the delivery if it tries to use (for example) a
2924 cached ldap connection that the parent has called unbind on.
2925
2926 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2927 of $address_data from the recipient verification was clobbered by the
2928 sender verification.
2929
293010. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2931 was its contents. (It was OK if the option was not defined at all.)
2932
293311. A "Completed" log line is now written for messages that are removed from
2934 the spool by the -Mrm option.
2935
293612. $host_address is now set to the target address during the checking of
2937 ignore_target_hosts.
2938
293913. When checking ignore_target_hosts for an ipliteral router, no host name was
2940 being passed; this would have caused $sender_host_name to have been used if
2941 matching the list had actually called for a host name (not very likely,
2942 since this list is usually IP addresses). A host name is now passed as
2943 "[x.x.x.x]".
2944
294514. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2946 code that specifies a non-restarting handler (typically sigaction() in
2947 modern systems) in an attempt to fix a rare and obscure crash bug.
2948
294915. Narrowed the window for a race in the daemon that could cause it to ignore
2950 SIGCHLD signals. This is not a major problem, because they are used only to
2951 wake it up if nothing else does.
2952
295316. A malformed maildirsize file could cause Exim to calculate negative values
2954 for the mailbox size or file count. Odd effects could occur as a result.
2955 The maildirsize information is now recalculated if the size or filecount
2956 end up negative.
2957
295817. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2959 support for a long time. Removed HAVE_SYS_VFS_H.
2960
ea3a6f44 296118. Updated exipick to current release from John Jetmore.
bbe902f0
PH
2962
296319. Allow an empty sender to be matched against a lookup in an address list.
2964 Previously the only cases considered were a regular expression, or an
2965 empty pattern.
2966
296720. Exim went into a mad DNS lookup loop when doing a callout where the
2968 host was specified on the transport, if the DNS lookup yielded more than
2969 one IP address.
2970
ea3a6f44
NM
297121. The RFC2047 encoding function was originally intended for short strings
2972 such as real names; it was not keeping to the 75-character limit for
2973 encoded words that the RFC imposes. It now respects the limit, and
2974 generates multiple encoded words if necessary. To be on the safe side, I
2975 have increased the buffer size for the ${rfc2047: expansion operator from
2976 1024 to 2048 bytes.
bbe902f0 2977
ea3a6f44
NM
297822. Failure to deliver a bounce message always caused it to be frozen, even if
2979 there was an errors_to setting on the router. The errors_to setting is now
2980 respected.
bbe902f0
PH
2981
298223. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2983 canonical form (fully expanded) before being placed in
2984 $sender_host_address.
2985
298624. Updated eximstats to version 1.33
2987
ea3a6f44
NM
298825. Include certificate and key file names in error message when GnuTLS fails
2989 to set them up, because the GnuTLS error message doesn't include the name
2990 of the failing file when there is a problem reading it.
bbe902f0
PH
2991
299226. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 2993 As per change 25.
bbe902f0 2994
ea3a6f44
NM
299527. Reset the locale to "C" after calling embedded Perl, in case it was changed
2996 (this can affect the format of dates).
bbe902f0 2997
ea3a6f44
NM
299828. exim_tidydb, when checking for the continued existence of a message for
2999 which it has found a message-specific retry record, was not finding
3000 messages that were in split spool directories. Consequently, it was
3001 deleting retry records that should have stayed in existence.
bbe902f0
PH
3002
300329. eximstats updated to version 1.35
3004 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3005 1.35 - bugfix such that pie charts by volume are generated correctly
3006
ea3a6f44
NM
300730. The SPA authentication driver was not abandoning authentication and moving
3008 on to the next authenticator when an expansion was forced to fail,
3009 contradicting the general specification for all authenticators. Instead it
3010 was generating a temporary error. It now behaves as specified.
bbe902f0 3011
ea3a6f44
NM
301231. The default ordering of permitted cipher suites for GnuTLS was pessimal
3013 (the order specifies the preference for clients). The order is now AES256,
3014 AES128, 3DES, ARCFOUR128.
bbe902f0 3015
ea3a6f44
NM
301631. Small patch to Sieve code - explicitly set From: when generating an
3017 autoreply.
bbe902f0 3018
ea3a6f44
NM
301932. Exim crashed if a remote delivery caused a very long error message to be
3020 recorded - for instance if somebody sent an entire SpamAssassin report back
3021 as a large number of 550 error lines. This bug was coincidentally fixed by
3022 increasing the size of one of Exim's internal buffers (big_buffer) that
3023 happened as part of the Exiscan merge. However, to be on the safe side, I
3024 have made the code more robust (and fixed the comments that describe what
3025 is going on).
bbe902f0 3026
ea3a6f44
NM
302733. Some experimental protocols are using DNS PTR records for new purposes. The
3028 keys for these records are domain names, not reversed IP addresses. The
3029 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3030 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3031 CAN-2005-0021
3032
ea3a6f44
NM
303334. The host_aton() function is supposed to be passed a string that is known
3034 to be a valid IP address. However, in the case of IPv6 addresses, it was
3035 not checking this. This is a hostage to fortune. Exim now panics and dies
3036 if the condition is not met. A case was found where this could be provoked
3037 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3038 components; fortuitously, this particular loophole had already been fixed
3039 by change 4.50/55 or 4.44/33 above.
3040
3041 If there are any other similar loopholes, the new check in host_aton()
3042 itself should stop them being exploited. The report I received stated that
3043 data on the command line could provoke the exploit when Exim was running as
3044 exim, but did not say which command line option was involved. All I could
3045 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3046 running as the user.
bbe902f0
PH
3047 CAN-2005-0021
3048
ea3a6f44
NM
304935. There was a buffer overflow vulnerability in the SPA authentication code
3050 (which came originally from the Samba project). I have added a test to the
3051 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3052 CAN-2005-0022
3053
ea3a6f44
NM
305436. The daemon start-up calls getloadavg() while still root for those OS that
3055 need the first call to be done as root, but it missed one case: when
3056 deliver_queue_load_max is set with deliver_drop_privilege. This is
3057 necessary for the benefit of the queue runner, because there is no re-exec
3058 when deliver_drop_privilege is set.
bbe902f0 3059
ea3a6f44
NM
306037. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3061 was in use, was not putting the data itself into the right store pool;
3062 consequently, it could be overwritten for a subsequent message in the same
3063 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3064 the caching.)
bbe902f0 3065
ea3a6f44
NM
306638. Sometimes the final signoff response after QUIT could fail to get
3067 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3068 < 0 before doing a fflush(). This bug looks as though it goes back to the
3069 introduction of TLS in release 3.20, but "sometimes" must have been rare
3070 because the tests only now provoked it.
bbe902f0
PH
3071
3072
495ae4b0
PH
3073Exim version 4.43
3074-----------------
3075
3076 1. Fixed a longstanding but relatively impotent bug: a long time ago, before
3077 PIPELINING, the function smtp_write_command() used to return TRUE or FALSE.
3078 Now it returns an integer. A number of calls were still expecting a T/F
3079 return. Fortuitously, in all cases, the tests worked in OK situations,
3080 which is the norm. However, things would have gone wrong on any write
3081 failures on the smtp file descriptor. This function is used when sending
3082 messages over SMTP and also when doing verify callouts.
3083
3084 2. When Exim is called to do synchronous delivery of a locally submitted
3085 message (the -odf or -odi options), it no longer closes stderr before doing
3086 the delivery.
3087
3088 3. Implemented the mua_wrapper option.
3089
3090 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router.
3091
3092 5. Implemented the functions header_remove(), header_testname(),
3093 header_add_at_position(), and receive_remove_recipient(), and exported them
3094 to local_scan().
3095
3096 6. If an ACL "warn" statement specified the addition of headers, Exim already
3097 inserted X-ACL-Warn: at the start if there was no header name. However, it
3098 was not making this test for the second and subsequent header lines if
3099 there were newlines in the string. This meant that an invalid header could
3100 be inserted if Exim was badly configured.
3101
3102 7. Allow an ACL "warn" statement to add header lines at the start or after all
3103 the Received: headers, as well as at the end.
3104
3105 8. Added the rcpt_4xx retry error code.
3106
3107 9. Added postmaster_mailfrom=xxx to callout verification option.
3108
310910. Added mailfrom=xxxx to the callout verification option, for verify=
3110 header_sender only.
3111
311211. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors
3113 (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}).
3114
311512. Inserted some casts to stop certain compilers warning when using pointer
3116 differences as field lengths or precisions in printf-type calls (mostly
3117 affecting debugging statements).
3118
311913. Added optional readline() support for -be (dynamically loaded).
3120
312114. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the
3122 same clock tick as a message's arrival, so that its received time was the
3123 same as the "first fail" time on the retry record, and that message
3124 remained on the queue past the ultimate address timeout, every queue runner
3125 would try a delivery (because it was past the ultimate address timeout) but
3126 after another failure, the ultimate address timeout, which should have then
3127 bounced the address, did not kick in. This was a "< instead of <=" error;
3128 in most cases the first failure would have been in the next clock tick
3129 after the received time, and all would be well.
3130
313115. The special items beginning with @ in domain lists (e.g. @mx_any) were not
3132 being recognized when the domain list was tested by the match_domain
3133 condition in an expansion string.
3134
313516. Added the ${str2b64: operator.
3136
313717. Exim was always calling setrlimit() to set a large limit for the number of
3138 processes, without checking whether the existing limit was already
3139 adequate. (It did check for the limit on file descriptors.) Furthermore,
3140 errors from getrlimit() and setrlimit() were being ignored. Now they are
3141 logged to the main and panic logs, but Exim does carry on, to try to do its
3142 job under whatever limits there are.
3143
314418. Imported PCRE 5.0.
3145
314619. Trivial typo in log message " temporarily refused connection" (the leading
3147 space).
3148
314920. If the log selector return_path_on_delivery was set and an address was
3150 redirected to /dev/null, the delivery process crashed because it assumed
3151 that a return path would always be set for a "successful" delivery. In this
3152 case, the whole delivery is bypassed as an optimization, and therefore no
3153 return path is set.
3154
315521. Internal re-arrangement: the function for sending a challenge and reading
3156 a response while authentication was assuming a zero-terminated challenge
3157 string. It's now changed to take a pointer and a length, to allow for
3158 binary data in such strings.
3159
316022. Added the cyrus_sasl authenticator (code supplied by MBM).
3161
316223. Exim was not respecting finduser_retries when seeking the login of the
3163 uid under which it was called; it was always trying 10 times. (The default
3164 setting of finduser_retries is zero.) Also, it was sleeping after the final
3165 failure, which is pointless.
3166
316724. Implemented tls_on_connect_ports.
3168
316925. Implemented acl_smtp_predata.
3170
317126. If the domain in control=submission is set empty, Exim assumes that the
3172 authenticated id is a complete email address when it generates From: or
3173 Sender: header lines.
3174
317527. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added
3176 definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename,
3177 chown and chgrp in /bin and hostname in /usr/bin.
3178
317928. Exim was keeping the "process log" file open after each use, just as it
3180 does for the main log. This opens the possibility of it remaining open for
3181 long periods when the USR1 signal hits a daemon. Occasional processlog
3182 errors were reported, that could have been caused by this. Anyway, it seems
3183 much more sensible not to leave this file open at all, so that is what now
3184 happens.
3185
318629. The long-running daemon process does not normally write to the log once it
3187 has entered its main loop, and it closes the log before doing so. This is
3188 so that log files can straightforwardly be renamed and moved. However,
3189 there are a couple of unusual error situations where the daemon does write
3190 log entries, and I had neglected to close the log afterwards.
3191
319230. The text of an SMTP error response that was received during a remote
3193 delivery was being truncated at 512 bytes. This is too short for some of
3194 the long messages that one sometimes sees. I've increased the limit to
3195 1024.
3196
319731. It is now possible to make retry rules that apply only when a message has a
3198 specific sender, in particular, an empty sender.
3199
320032. Added "control = enforce_sync" and "control = no_enforce_sync". This makes
3201 it possible to be selective about when SMTP synchronization is enforced.
3202
320333. Added "control = caseful_local_part" and "control = "caselower_local_part".
3204
320532. Implemented hosts_connection_nolog.
3206
320733. Added an ACL for QUIT.
3208
320934. Setting "delay_warning=" to disable warnings was not working; it gave a
3210 syntax error.
3211
321235. Added mailbox_size and mailbox_filecount to appendfile.
3213
321436. Added control = no_multiline_responses to ACLs.
3215
321637. There was a bug in the logic of the code that waits for the clock to tick
3217 in the case where the clock went backwards by a substantial amount such
3218 that the microsecond fraction of "now" was more than the microsecond
3219 fraction of "then" (but the whole seconds number was less).
3220
322138. Added support for the libradius Radius client library this is found on
3222 FreeBSD (previously only the radiusclient library was supported).
3223
3224
3225Exim version 4.42
3226-----------------
3227
3228 1. When certain lookups returned multiple values in the form name=value, the
3229 quoting of the values was not always being done properly. Specifically:
3230 (a) If the value started with a double quote, but contained no whitespace,
3231 it was not quoted.
3232 (b) If the value contained whitespace other than a space character (i.e.
3233 tabs or newlines or carriage returns) it was not quoted.
3234 This fix has been applied to the mysql and pgsql lookups by writing a
3235 separate quoting function and calling it from the lookup code. The fix
3236 should probably also be applied to nisplus, ibase and oracle lookups, but
3237 since I cannot test any of those, I have not disturbed their existing code.
3238
3239 2. A hit in the callout cache for a specific address caused a log line with no
3240 reason for rejecting RCPT. Now it says "Previous (cached) callout
3241 verification failure".
3242
3243 3. There was an off-by-one bug in the queryprogram router. An over-long
3244 return line was truncated at 256 instead of 255 characters, thereby
3245 overflowing its buffer with the terminating zero. As well as fixing this, I
3246 have increased the buffer size to 1024 (and made a note to document this).
3247
3248 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives
3249 when Exim is waiting for an SMTP response from a remote server, Exim
3250 restarts its select() call on the socket, thereby resetting its timeout.
3251 This is not a problem when such interrupts are rare. Somebody set up a cron
3252 job to run exiwhat every 2 minutes, which is less than the normal select()
3253 timeout (5 or 10 minutes). This meant that the select() timeout never
3254 kicked in because it was always reset. I have fixed this by comparing the
3255 time when an interrupt arrives with the time at the start of the first call
3256 to select(). If more time than the timeout has elapsed, the interrupt is
3257 treated as a timeout.
3258
3259 5. Some internal re-factoring in preparation for the addition of Sieve
3260 extensions (by MH). In particular, the "personal" test is moved to a
3261 separate function, and given an option for scanning Cc: and Bcc: (which is
3262 not set for Exim filters).
3263
3264 6. When Exim created an email address using the login of the caller as the
3265 local part (e.g. when creating a From: or Sender: header line), it was not
3266 quoting the local part when it contained special characters such as @.
3267
3268 7. Installed new OpenBSD configuration files.
3269
3270 8. Reworded some messages for syntax errors in "and" and "or" conditions to
3271 try to make them clearer.
3272
3273 9. Callout options, other than the timeout value, were being ignored when
3274 verifying sender addresses in header lines. For example, when using
3275
3276 verify = header_sender/callout=no_cache
3277
3278 the cache was (incorrectly) being used.
3279
328010. Added a missing instance of ${EXE} to the exim_install script; this affects
3281 only the Cygwin environment.
3282
328311. When return_path_on_delivery was set as a log selector, if different remote
3284 addresses in the same message used different return paths and parallel
3285 remote delivery occurred, the wrong values would sometimes be logged.
3286 (Whenever a remote delivery process finished, the return path value from
3287 the most recently started remote delivery process was logged.)
3288
328912. RFC 3848 specifies standard names for the "with" phrase in Received: header
3290 lines when AUTH and/or TLS are in use. This is the "received protocol"
3291 field. Exim used to use "asmtp" for authenticated SMTP, without any
3292 indication (in the protocol name) for TLS use. Now it follows the RFC and
3293 uses "esmtpa" if the connection is authenticated, "esmtps" if it is
3294 encrypted, and "esmtpsa" if it is both encrypted and authenticated. These
3295 names appear in log lines as well as in Received: header lines.
3296
329713. Installed MH's patches for Sieve to add the "copy" and "vacation"
3298 extensions, and comparison tests, and to fix some bugs.
3299
330014. Changes to the "personal" filter test:
3301
3302 (1) The test was buggy in that it was just doing the equivalent of
3303 "contains" tests on header lines. For example, if a user's address was
3304 anne@some.where, the "personal" test would incorrectly be true for
3305
3306 To: susanne@some.where
3307
3308 This test is now done by extracting each address from the header in turn,
3309 and checking the entire address. Other tests that are part of "personal"
3310 are now done using regular expressions (for example, to check local parts
3311 of addresses in From: header lines).
3312
3313 (2) The list of non-personal local parts in From: addresses has been
3314 extended to include "listserv", "majordomo", "*-request", and "owner-*",
3315 taken from the Sieve specification recommendations.
3316
3317 (3) If the message contains any header line starting with "List-" it is
3318 treated as non-personal.
3319
3320 (4) The test for "circular" in the Subject: header line has been removed
3321 because it now seems ill-conceived.
3322
332315. Minor typos in src/EDITME comments corrected.
3324
332516. Installed latest exipick from John Jetmore.
3326
332717. If headers_add on a router specified a text string that was too long for
3328 string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use
3329 of string_sprintf() is now avoided.
3330
333118. $message_body_size was not set (it was always zero) when running the DATA
3332 ACL and the local_scan() function.
3333
333419. For the "mail" command in an Exim filter, no default was being set for
3335 the once_repeat time, causing a random time value to be used if "once" was
3336 specified. (If the value happened to be <= 0, no repeat happened.) The
3337 default is now 0s, meaning "never repeat". The "vacation" command was OK
3338 (its default is 7d). It's somewhat surprising nobody ever noticed this bug
3339 (I found it when inspecting the code).
3340
334120. There is now an overall timeout for performing a callout verification. It
3342 defaults to 4 times the callout timeout, which applies to individual SMTP
3343 commands during the callout. The overall timeout applies when there is more
3344 than one host that can be tried. The timeout is checked before trying the
3345 next host. This prevents very long delays if there are a large number of
3346 hosts and all are timing out (e.g. when the network connections are timing
3347 out). The value of the overall timeout can be changed by specifying an
3348 additional sub-option for "callout", called "maxwait". For example:
3349
3350 verify = sender/callout=5s,maxwait=20s
3351
335221. Add O_APPEND to the open() call for maildirsize files (Exim already seeks
3353 to the end before writing, but this should make it even safer).
3354
335522. Exim was forgetting that it had advertised PIPELINING for the second and
3356 subsequent messages on an SMTP connection. It was also not resetting its
3357 memory on STARTTLS and an internal HELO.
3358
335923. When Exim logs an SMTP synchronization error within a session, it now
3360 records whether PIPELINING has been advertised or not.
3361
336224. Added 3 instances of "(long int)" casts to time_t variables that were being
3363 formatted using %ld, because on OpenBSD (and perhaps others), time_t is int
3364 rather than long int.
3365
336625. Installed the latest Cygwin configuration files from the Cygwin maintainer.
3367
336826. Added the never_mail option to autoreply.
3369
3370
3371Exim version 4.41
3372-----------------
3373
3374 1. A reorganization of the code in order to implement 4.40/8 caused a daemon
3375 crash if the getsockname() call failed; this can happen if a connection is
3376 closed very soon after it is established. The problem was simply in the
3377 order in which certain operations were done, causing Exim to try to write
3378 to the SMTP stream before it had set up the file descriptor. The bug has
3379 been fixed by making things happen in the correct order.
3380
3381
3382Exim version 4.40
3383-----------------
3384
3385 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed
3386 before the connection was closed, thus losing the rejection response.
3387
3388 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for
3389 some early Solaris releases, but causes trouble in current releases where
3390 socklen_t is defined.
3391
3392 3. When std{in,out,err} are closed, re-open them to /dev/null so that they
3393 always exist.
3394
3395 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not
3396 configured.
3397
3398 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so
3399 that releasing the top of it at the end releases what was used for sub-
3400 expansions (unless the block got too big). However, discard this block if
3401 the first thing is a variable or header, so that we can use its block when
3402 it is dynamic (useful for very large $message_headers, for example).
3403
3404 6. Lookups now cache *every* query, not just the most recent. A new, separate
3405 store pool is used for this. It can be recovered when all lookup caches are
3406 flushed. Lookups now release memory at the end of their result strings.
3407 This has involved some general refactoring of the lookup sources.
3408
3409 7. Some code has been added to the store_xxx() functions to reduce the amount
3410 of flapping under certain conditions.
3411
3412 8. log_incoming_interface used to affect only the <= reception log lines. Now
3413 it causes the local interface and port to be added to several more SMTP log
3414 lines, for example "SMTP connection from", and rejection lines.
3415
3416 9. The Sieve author supplied some patches for the doc/README.SIEVE file.
3417
341810. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin.
3419
342011. If $host_data was set by virtue of a hosts lookup in an ACL, its value
3421 could be overwritten at the end of the current message (or the start of a
3422 new message if it was set in a HELO ACL). The value is now preserved for
3423 the duration of the SMTP connection.
3424
342512. If a transport had a headers_rewrite setting, and a matching header line
3426 contained an unqualified address, that address was qualified, even if it
3427 did not match any rewriting rules. The underlying bug was that the values
3428 of the flags that permit the existence of unqualified sender and recipient
3429 addresses in header lines (set by {sender,recipient}_unqualified_hosts for
3430 non-local messages, and by -bnq for local messages) were not being
3431 preserved with the message after it was received.
3432
343313. When Exim was logging an SMTP synchronization error, it could sometimes log
3434 "next input=" as part of the text comprising the host identity instead of
3435 the correct text. The code was using the same buffer for two different
3436 strings. However, depending on which order the printing function evaluated
3437 its arguments, the bug did not always show up. Under Linux, for example, my
3438 test suite worked just fine.
3439
344014. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This
3441 doesn't work with some older versions of Perl. It has been changed to "my",
3442 which in any case is probably the better facility to use.
3443
344415. A really picky compiler found some instances of statements for creating
3445 error messages that either had too many or two few arguments for the format
3446 string.
3447
344816. The size of the buffer for calls to the DNS resolver has been increased
3449 from 1024 to 2048. A larger buffer is needed when performing PTR lookups
3450 for addresses that have a lot of PTR records. This alleviates a problem; it
3451 does not fully solve it.
3452
345317. A dnsdb lookup for PTR records that receives more data than will fit in the
3454 buffer now truncates the list and logs the incident, which is the same
3455 action as happens when Exim is looking up a host name and its aliases.
3456 Previously in this situation something unpredictable would happen;
3457 sometimes it was "internal error: store_reset failed".
3458
345918. If a server dropped the connection unexpectedly when an Exim client was
3460 using GnuTLS and trying to read a response, the client delivery process
3461 crashed while trying to generate an error log message.
3462
346319. If a "warn" verb in an ACL added multiple headers to a message in a single
3464 string, for example:
3465
3466 warn message = H1: something\nH2: something
3467
3468 the text was added as a single header line from Exim's point of view
3469 though it ended up OK in the delivered message. However, searching for the
3470 second and subsequent header lines using $h_h2: did not work. This has been
3471 fixed. Similarly, if a system filter added multiple headers in this way,
3472 the routers could not see them.
3473
347420. Expanded the error message when iplsearch is called with an invalid key to
3475 suggest using net-iplsearch in a host list.
3476
347721. When running tests using -bh, any delays imposed by "delay" modifiers in
3478 ACLs are no longer actually imposed (and a message to that effect is
3479 output).
3480
348122. If a "gecos" field in a passwd entry contained escaped characters, in
3482 particular, if it contained a \" sequence, Exim got it wrong when building
3483 a From: or a Sender: header from that name. A second bug also caused
3484 incorrect handling when an unquoted " was present following a character
3485 that needed quoting.
3486
348723. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item
3488 was not being matched caselessly.
3489
349024. Arranged for all hyphens in the exim.8 source to be escaped with
3491 backslashes.
3492
349325. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job
3494 properly. Recipient callout cache records were still being keyed to include